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{{ "language": "Solidity", "sources": { "lib/ERC721A/contracts/IERC721A.sol": { "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.2\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\n/**\n * @dev Interface of ERC721A.\n */\ninterface IERC721A {\n /**\n * The caller must own the token or be an approved operator.\n */\n error ApprovalCallerNotOwnerNorApproved();\n\n /**\n * The token does not exist.\n */\n error ApprovalQueryForNonexistentToken();\n\n /**\n * Cannot query the balance for the zero address.\n */\n error BalanceQueryForZeroAddress();\n\n /**\n * Cannot mint to the zero address.\n */\n error MintToZeroAddress();\n\n /**\n * The quantity of tokens minted must be more than zero.\n */\n error MintZeroQuantity();\n\n /**\n * The token does not exist.\n */\n error OwnerQueryForNonexistentToken();\n\n /**\n * The caller must own the token or be an approved operator.\n */\n error TransferCallerNotOwnerNorApproved();\n\n /**\n * The token must be owned by `from`.\n */\n error TransferFromIncorrectOwner();\n\n /**\n * Cannot safely transfer to a contract that does not implement the\n * ERC721Receiver interface.\n */\n error TransferToNonERC721ReceiverImplementer();\n\n /**\n * Cannot transfer to the zero address.\n */\n error TransferToZeroAddress();\n\n /**\n * The token does not exist.\n */\n error URIQueryForNonexistentToken();\n\n /**\n * The `quantity` minted with ERC2309 exceeds the safety limit.\n */\n error MintERC2309QuantityExceedsLimit();\n\n /**\n * The `extraData` cannot be set on an unintialized ownership slot.\n */\n error OwnershipNotInitializedForExtraData();\n\n // =============================================================\n // STRUCTS\n // =============================================================\n\n struct TokenOwnership {\n // The address of the owner.\n address addr;\n // Stores the start time of ownership with minimal overhead for tokenomics.\n uint64 startTimestamp;\n // Whether the token has been burned.\n bool burned;\n // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.\n uint24 extraData;\n }\n\n // =============================================================\n // TOKEN COUNTERS\n // =============================================================\n\n /**\n * @dev Returns the total number of tokens in existence.\n * Burned tokens will reduce the count.\n * To get the total number of tokens minted, please see {_totalMinted}.\n */\n function totalSupply() external view returns (uint256);\n\n // =============================================================\n // IERC165\n // =============================================================\n\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n\n // =============================================================\n // IERC721\n // =============================================================\n\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables\n * (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in `owner`'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`,\n * checking first that contract recipients are aware of the ERC721 protocol\n * to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move\n * this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n\n /**\n * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom}\n * whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the\n * zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom}\n * for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n\n // =============================================================\n // IERC721Metadata\n // =============================================================\n\n /**\n * @dev Returns the token collection name.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId) external view returns (string memory);\n\n // =============================================================\n // IERC2309\n // =============================================================\n\n /**\n * @dev Emitted when tokens in `fromTokenId` to `toTokenId`\n * (inclusive) is transferred from `from` to `to`, as defined in the\n * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.\n *\n * See {_mintERC2309} for more details.\n */\n event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);\n}\n" }, "lib/openzeppelin-contracts/contracts/interfaces/IERC2981.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Interface for the NFT Royalty Standard.\n *\n * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal\n * support for royalty payments across all NFT marketplaces and ecosystem participants.\n *\n * _Available since v4.5._\n */\ninterface IERC2981 is IERC165 {\n /**\n * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of\n * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.\n */\n function royaltyInfo(uint256 tokenId, uint256 salePrice)\n external\n view\n returns (address receiver, uint256 royaltyAmount);\n}\n" }, "lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n" }, "lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\n * case an upgrade adds a module that needs to be initialized.\n *\n * For example:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * contract MyToken is ERC20Upgradeable {\n * function initialize() initializer public {\n * __ERC20_init(\"MyToken\", \"MTK\");\n * }\n * }\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n * function initializeV2() reinitializer(2) public {\n * __ERC20Permit_init(\"MyToken\");\n * }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n * _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n /**\n * @dev Indicates that the contract has been initialized.\n * @custom:oz-retyped-from bool\n */\n uint8 private _initialized;\n\n /**\n * @dev Indicates that the contract is in the process of being initialized.\n */\n bool private _initializing;\n\n /**\n * @dev Triggered when the contract has been initialized or reinitialized.\n */\n event Initialized(uint8 version);\n\n /**\n * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n * `onlyInitializing` functions can be used to initialize parent contracts.\n *\n * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\n * constructor.\n *\n * Emits an {Initialized} event.\n */\n modifier initializer() {\n bool isTopLevelCall = !_initializing;\n require(\n (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\n \"Initializable: contract is already initialized\"\n );\n _initialized = 1;\n if (isTopLevelCall) {\n _initializing = true;\n }\n _;\n if (isTopLevelCall) {\n _initializing = false;\n emit Initialized(1);\n }\n }\n\n /**\n * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n * used to initialize parent contracts.\n *\n * A reinitializer may be used after the original initialization step. This is essential to configure modules that\n * are added through upgrades and that require initialization.\n *\n * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\n * cannot be nested. If one is invoked in the context of another, execution will revert.\n *\n * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n * a contract, executing them in the right order is up to the developer or operator.\n *\n * WARNING: setting the version to 255 will prevent any future reinitialization.\n *\n * Emits an {Initialized} event.\n */\n modifier reinitializer(uint8 version) {\n require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\n _initialized = version;\n _initializing = true;\n _;\n _initializing = false;\n emit Initialized(version);\n }\n\n /**\n * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n * {initializer} and {reinitializer} modifiers, directly or indirectly.\n */\n modifier onlyInitializing() {\n require(_initializing, \"Initializable: contract is not initializing\");\n _;\n }\n\n /**\n * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n * through proxies.\n *\n * Emits an {Initialized} event the first time it is successfully executed.\n */\n function _disableInitializers() internal virtual {\n require(!_initializing, \"Initializable: contract is initializing\");\n if (_initialized != type(uint8).max) {\n _initialized = type(uint8).max;\n emit Initialized(type(uint8).max);\n }\n }\n\n /**\n * @dev Internal function that returns the initialized version. Returns `_initialized`\n */\n function _getInitializedVersion() internal view returns (uint8) {\n return _initialized;\n }\n\n /**\n * @dev Internal function that returns the initialized version. Returns `_initializing`\n */\n function _isInitializing() internal view returns (bool) {\n return _initializing;\n }\n}\n" }, "lib/openzeppelin-contracts-upgradeable/contracts/security/ReentrancyGuardUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)\n\npragma solidity ^0.8.0;\nimport \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuardUpgradeable is Initializable {\n // Booleans are more expensive than uint256 or any type that takes up a full\n // word because each write operation emits an extra SLOAD to first read the\n // slot's contents, replace the bits taken up by the boolean, and then write\n // back. This is the compiler's defense against contract upgrades and\n // pointer aliasing, and it cannot be disabled.\n\n // The values being non-zero value makes deployment a bit more expensive,\n // but in exchange the refund on every call to nonReentrant will be lower in\n // amount. Since refunds are capped to a percentage of the total\n // transaction's gas, it is best to keep them low in cases like this one, to\n // increase the likelihood of the full refund coming into effect.\n uint256 private constant _NOT_ENTERED = 1;\n uint256 private constant _ENTERED = 2;\n\n uint256 private _status;\n\n function __ReentrancyGuard_init() internal onlyInitializing {\n __ReentrancyGuard_init_unchained();\n }\n\n function __ReentrancyGuard_init_unchained() internal onlyInitializing {\n _status = _NOT_ENTERED;\n }\n\n /**\n * @dev Prevents a contract from calling itself, directly or indirectly.\n * Calling a `nonReentrant` function from another `nonReentrant`\n * function is not supported. It is possible to prevent this from happening\n * by making the `nonReentrant` function external, and making it call a\n * `private` function that does the actual work.\n */\n modifier nonReentrant() {\n _nonReentrantBefore();\n _;\n _nonReentrantAfter();\n }\n\n function _nonReentrantBefore() private {\n // On the first call to nonReentrant, _status will be _NOT_ENTERED\n require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n // Any calls to nonReentrant after this point will fail\n _status = _ENTERED;\n }\n\n function _nonReentrantAfter() private {\n // By storing the original value once again, a refund is triggered (see\n // https://eips.ethereum.org/EIPS/eip-2200)\n _status = _NOT_ENTERED;\n }\n\n /**\n * @dev Returns true if the reentrancy guard is currently set to \"entered\", which indicates there is a\n * `nonReentrant` function in the call stack.\n */\n function _reentrancyGuardEntered() internal view returns (bool) {\n return _status == _ENTERED;\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[49] private __gap;\n}\n" }, "lib/openzeppelin-contracts-upgradeable/contracts/utils/AddressUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n" }, "lib/operator-filter-registry/src/IOperatorFilterRegistry.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\ninterface IOperatorFilterRegistry {\n /**\n * @notice Returns true if operator is not filtered for a given token, either by address or codeHash. Also returns\n * true if supplied registrant address is not registered.\n */\n function isOperatorAllowed(address registrant, address operator) external view returns (bool);\n\n /**\n * @notice Registers an address with the registry. May be called by address itself or by EIP-173 owner.\n */\n function register(address registrant) external;\n\n /**\n * @notice Registers an address with the registry and \"subscribes\" to another address's filtered operators and codeHashes.\n */\n function registerAndSubscribe(address registrant, address subscription) external;\n\n /**\n * @notice Registers an address with the registry and copies the filtered operators and codeHashes from another\n * address without subscribing.\n */\n function registerAndCopyEntries(address registrant, address registrantToCopy) external;\n\n /**\n * @notice Unregisters an address with the registry and removes its subscription. May be called by address itself or by EIP-173 owner.\n * Note that this does not remove any filtered addresses or codeHashes.\n * Also note that any subscriptions to this registrant will still be active and follow the existing filtered addresses and codehashes.\n */\n function unregister(address addr) external;\n\n /**\n * @notice Update an operator address for a registered address - when filtered is true, the operator is filtered.\n */\n function updateOperator(address registrant, address operator, bool filtered) external;\n\n /**\n * @notice Update multiple operators for a registered address - when filtered is true, the operators will be filtered. Reverts on duplicates.\n */\n function updateOperators(address registrant, address[] calldata operators, bool filtered) external;\n\n /**\n * @notice Update a codeHash for a registered address - when filtered is true, the codeHash is filtered.\n */\n function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;\n\n /**\n * @notice Update multiple codeHashes for a registered address - when filtered is true, the codeHashes will be filtered. Reverts on duplicates.\n */\n function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;\n\n /**\n * @notice Subscribe an address to another registrant's filtered operators and codeHashes. Will remove previous\n * subscription if present.\n * Note that accounts with subscriptions may go on to subscribe to other accounts - in this case,\n * subscriptions will not be forwarded. Instead the former subscription's existing entries will still be\n * used.\n */\n function subscribe(address registrant, address registrantToSubscribe) external;\n\n /**\n * @notice Unsubscribe an address from its current subscribed registrant, and optionally copy its filtered operators and codeHashes.\n */\n function unsubscribe(address registrant, bool copyExistingEntries) external;\n\n /**\n * @notice Get the subscription address of a given registrant, if any.\n */\n function subscriptionOf(address addr) external returns (address registrant);\n\n /**\n * @notice Get the set of addresses subscribed to a given registrant.\n * Note that order is not guaranteed as updates are made.\n */\n function subscribers(address registrant) external returns (address[] memory);\n\n /**\n * @notice Get the subscriber at a given index in the set of addresses subscribed to a given registrant.\n * Note that order is not guaranteed as updates are made.\n */\n function subscriberAt(address registrant, uint256 index) external returns (address);\n\n /**\n * @notice Copy filtered operators and codeHashes from a different registrantToCopy to addr.\n */\n function copyEntriesOf(address registrant, address registrantToCopy) external;\n\n /**\n * @notice Returns true if operator is filtered by a given address or its subscription.\n */\n function isOperatorFiltered(address registrant, address operator) external returns (bool);\n\n /**\n * @notice Returns true if the hash of an address's code is filtered by a given address or its subscription.\n */\n function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);\n\n /**\n * @notice Returns true if a codeHash is filtered by a given address or its subscription.\n */\n function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);\n\n /**\n * @notice Returns a list of filtered operators for a given address or its subscription.\n */\n function filteredOperators(address addr) external returns (address[] memory);\n\n /**\n * @notice Returns the set of filtered codeHashes for a given address or its subscription.\n * Note that order is not guaranteed as updates are made.\n */\n function filteredCodeHashes(address addr) external returns (bytes32[] memory);\n\n /**\n * @notice Returns the filtered operator at the given index of the set of filtered operators for a given address or\n * its subscription.\n * Note that order is not guaranteed as updates are made.\n */\n function filteredOperatorAt(address registrant, uint256 index) external returns (address);\n\n /**\n * @notice Returns the filtered codeHash at the given index of the list of filtered codeHashes for a given address or\n * its subscription.\n * Note that order is not guaranteed as updates are made.\n */\n function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);\n\n /**\n * @notice Returns true if an address has registered\n */\n function isRegistered(address addr) external returns (bool);\n\n /**\n * @dev Convenience method to compute the code hash of an arbitrary contract\n */\n function codeHashOf(address addr) external returns (bytes32);\n}\n" }, "lib/operator-filter-registry/src/lib/Constants.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.17;\n\naddress constant CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS = 0x000000000000AAeB6D7670E522A718067333cd4E;\naddress constant CANONICAL_CORI_SUBSCRIPTION = 0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6;\n" }, "lib/operator-filter-registry/src/upgradeable/DefaultOperatorFiltererUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {OperatorFiltererUpgradeable} from \"./OperatorFiltererUpgradeable.sol\";\nimport {CANONICAL_CORI_SUBSCRIPTION} from \"../lib/Constants.sol\";\n\n/**\n * @title DefaultOperatorFiltererUpgradeable\n * @notice Inherits from OperatorFiltererUpgradeable and automatically subscribes to the default OpenSea subscription\n * when the init function is called.\n */\nabstract contract DefaultOperatorFiltererUpgradeable is OperatorFiltererUpgradeable {\n /// @dev The upgradeable initialize function that should be called when the contract is being deployed.\n function __DefaultOperatorFilterer_init() internal onlyInitializing {\n OperatorFiltererUpgradeable.__OperatorFilterer_init(CANONICAL_CORI_SUBSCRIPTION, true);\n }\n}\n" }, "lib/operator-filter-registry/src/upgradeable/OperatorFiltererUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {IOperatorFilterRegistry} from \"../IOperatorFilterRegistry.sol\";\nimport {Initializable} from \"../../../../lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol\";\n\n/**\n * @title OperatorFiltererUpgradeable\n * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another\n * registrant's entries in the OperatorFilterRegistry when the init function is called.\n * @dev This smart contract is meant to be inherited by token contracts so they can use the following:\n * - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.\n * - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.\n */\nabstract contract OperatorFiltererUpgradeable is Initializable {\n /// @notice Emitted when an operator is not allowed.\n error OperatorNotAllowed(address operator);\n\n IOperatorFilterRegistry constant OPERATOR_FILTER_REGISTRY =\n IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);\n\n /// @dev The upgradeable initialize function that should be called when the contract is being upgraded.\n function __OperatorFilterer_init(address subscriptionOrRegistrantToCopy, bool subscribe)\n internal\n onlyInitializing\n {\n // If an inheriting token contract is deployed to a network without the registry deployed, the modifier\n // will not revert, but the contract will need to be registered with the registry once it is deployed in\n // order for the modifier to filter addresses.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n if (!OPERATOR_FILTER_REGISTRY.isRegistered(address(this))) {\n if (subscribe) {\n OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);\n } else {\n if (subscriptionOrRegistrantToCopy != address(0)) {\n OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);\n } else {\n OPERATOR_FILTER_REGISTRY.register(address(this));\n }\n }\n }\n }\n }\n\n /**\n * @dev A helper modifier to check if the operator is allowed.\n */\n modifier onlyAllowedOperator(address from) virtual {\n // Allow spending tokens from addresses with balance\n // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred\n // from an EOA.\n if (from != msg.sender) {\n _checkFilterOperator(msg.sender);\n }\n _;\n }\n\n /**\n * @dev A helper modifier to check if the operator approval is allowed.\n */\n modifier onlyAllowedOperatorApproval(address operator) virtual {\n _checkFilterOperator(operator);\n _;\n }\n\n /**\n * @dev A helper function to check if the operator is allowed.\n */\n function _checkFilterOperator(address operator) internal view virtual {\n // Check registry code length to facilitate testing in environments without a deployed registry.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n // under normal circumstances, this function will revert rather than return false, but inheriting or\n // upgraded contracts may specify their own OperatorFilterRegistry implementations, which may behave\n // differently\n if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {\n revert OperatorNotAllowed(operator);\n }\n }\n }\n}\n" }, "lib/utility-contracts/src/ConstructorInitializable.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\n/**\n * @author emo.eth\n * @notice Abstract smart contract that provides an onlyUninitialized modifier which only allows calling when\n * from within a constructor of some sort, whether directly instantiating an inherting contract,\n * or when delegatecalling from a proxy\n */\nabstract contract ConstructorInitializable {\n error AlreadyInitialized();\n\n modifier onlyConstructor() {\n if (address(this).code.length != 0) {\n revert AlreadyInitialized();\n }\n _;\n }\n}\n" }, "lib/utility-contracts/src/TwoStepOwnable.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\nimport {ConstructorInitializable} from \"./ConstructorInitializable.sol\";\n\n/**\n@notice A two-step extension of Ownable, where the new owner must claim ownership of the contract after owner initiates transfer\nOwner can cancel the transfer at any point before the new owner claims ownership.\nHelpful in guarding against transferring ownership to an address that is unable to act as the Owner.\n*/\nabstract contract TwoStepOwnable is ConstructorInitializable {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n address internal potentialOwner;\n\n event PotentialOwnerUpdated(address newPotentialAdministrator);\n\n error NewOwnerIsZeroAddress();\n error NotNextOwner();\n error OnlyOwner();\n\n modifier onlyOwner() {\n _checkOwner();\n _;\n }\n\n constructor() {\n _initialize();\n }\n\n function _initialize() private onlyConstructor {\n _transferOwnership(msg.sender);\n }\n\n ///@notice Initiate ownership transfer to newPotentialOwner. Note: new owner will have to manually acceptOwnership\n ///@param newPotentialOwner address of potential new owner\n function transferOwnership(address newPotentialOwner)\n public\n virtual\n onlyOwner\n {\n if (newPotentialOwner == address(0)) {\n revert NewOwnerIsZeroAddress();\n }\n potentialOwner = newPotentialOwner;\n emit PotentialOwnerUpdated(newPotentialOwner);\n }\n\n ///@notice Claim ownership of smart contract, after the current owner has initiated the process with transferOwnership\n function acceptOwnership() public virtual {\n address _potentialOwner = potentialOwner;\n if (msg.sender != _potentialOwner) {\n revert NotNextOwner();\n }\n delete potentialOwner;\n emit PotentialOwnerUpdated(address(0));\n _transferOwnership(_potentialOwner);\n }\n\n ///@notice cancel ownership transfer\n function cancelOwnershipTransfer() public virtual onlyOwner {\n delete potentialOwner;\n emit PotentialOwnerUpdated(address(0));\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if the sender is not the owner.\n */\n function _checkOwner() internal view virtual {\n if (_owner != msg.sender) {\n revert OnlyOwner();\n }\n }\n\n /**\n * @dev Leaves the contract without owner. It will not be possible to call\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n *\n * NOTE: Renouncing ownership will leave the contract without an owner,\n * thereby removing any functionality that is only available to the owner.\n */\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Internal function without access restriction.\n */\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n _owner = newOwner;\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n" }, "src/clones/ERC721ACloneable.sol": { "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.2\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport { IERC721A } from \"ERC721A/IERC721A.sol\";\n\nimport {\n Initializable\n} from \"openzeppelin-contracts-upgradeable/proxy/utils/Initializable.sol\";\n\n/**\n * @dev Interface of ERC721 token receiver.\n */\ninterface ERC721A__IERC721Receiver {\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n\n/**\n * @title ERC721A\n *\n * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)\n * Non-Fungible Token Standard, including the Metadata extension.\n * Optimized for lower gas during batch mints.\n *\n * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)\n * starting from `_startTokenId()`.\n *\n * Assumptions:\n *\n * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.\n * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).\n */\ncontract ERC721ACloneable is IERC721A, Initializable {\n // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364).\n struct TokenApprovalRef {\n address value;\n }\n\n // =============================================================\n // CONSTANTS\n // =============================================================\n\n // Mask of an entry in packed address data.\n uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;\n\n // The bit position of `numberMinted` in packed address data.\n uint256 private constant _BITPOS_NUMBER_MINTED = 64;\n\n // The bit position of `numberBurned` in packed address data.\n uint256 private constant _BITPOS_NUMBER_BURNED = 128;\n\n // The bit position of `aux` in packed address data.\n uint256 private constant _BITPOS_AUX = 192;\n\n // Mask of all 256 bits in packed address data except the 64 bits for `aux`.\n uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;\n\n // The bit position of `startTimestamp` in packed ownership.\n uint256 private constant _BITPOS_START_TIMESTAMP = 160;\n\n // The bit mask of the `burned` bit in packed ownership.\n uint256 private constant _BITMASK_BURNED = 1 << 224;\n\n // The bit position of the `nextInitialized` bit in packed ownership.\n uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;\n\n // The bit mask of the `nextInitialized` bit in packed ownership.\n uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;\n\n // The bit position of `extraData` in packed ownership.\n uint256 private constant _BITPOS_EXTRA_DATA = 232;\n\n // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.\n uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;\n\n // The mask of the lower 160 bits for addresses.\n uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;\n\n // The maximum `quantity` that can be minted with {_mintERC2309}.\n // This limit is to prevent overflows on the address data entries.\n // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}\n // is required to cause an overflow, which is unrealistic.\n uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;\n\n // The `Transfer` event signature is given by:\n // `keccak256(bytes(\"Transfer(address,address,uint256)\"))`.\n bytes32 private constant _TRANSFER_EVENT_SIGNATURE =\n 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;\n\n // =============================================================\n // STORAGE\n // =============================================================\n\n // The next token ID to be minted.\n uint256 private _currentIndex;\n\n // The number of tokens burned.\n uint256 private _burnCounter;\n\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Mapping from token ID to ownership details\n // An empty struct value does not necessarily mean the token is unowned.\n // See {_packedOwnershipOf} implementation for details.\n //\n // Bits Layout:\n // - [0..159] `addr`\n // - [160..223] `startTimestamp`\n // - [224] `burned`\n // - [225] `nextInitialized`\n // - [232..255] `extraData`\n mapping(uint256 => uint256) private _packedOwnerships;\n\n // Mapping owner address to address data.\n //\n // Bits Layout:\n // - [0..63] `balance`\n // - [64..127] `numberMinted`\n // - [128..191] `numberBurned`\n // - [192..255] `aux`\n mapping(address => uint256) private _packedAddressData;\n\n // Mapping from token ID to approved address.\n mapping(uint256 => TokenApprovalRef) private _tokenApprovals;\n\n // Mapping from owner to operator approvals\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n // =============================================================\n // CONSTRUCTOR\n // =============================================================\n\n function __ERC721ACloneable__init(\n string memory name_,\n string memory symbol_\n ) internal onlyInitializing {\n _name = name_;\n _symbol = symbol_;\n _currentIndex = _startTokenId();\n }\n\n // =============================================================\n // TOKEN COUNTING OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the starting token ID.\n * To change the starting token ID, please override this function.\n */\n function _startTokenId() internal view virtual returns (uint256) {\n return 0;\n }\n\n /**\n * @dev Returns the next token ID to be minted.\n */\n function _nextTokenId() internal view virtual returns (uint256) {\n return _currentIndex;\n }\n\n /**\n * @dev Returns the total number of tokens in existence.\n * Burned tokens will reduce the count.\n * To get the total number of tokens minted, please see {_totalMinted}.\n */\n function totalSupply() public view virtual override returns (uint256) {\n // Counter underflow is impossible as _burnCounter cannot be incremented\n // more than `_currentIndex - _startTokenId()` times.\n unchecked {\n return _currentIndex - _burnCounter - _startTokenId();\n }\n }\n\n /**\n * @dev Returns the total amount of tokens minted in the contract.\n */\n function _totalMinted() internal view virtual returns (uint256) {\n // Counter underflow is impossible as `_currentIndex` does not decrement,\n // and it is initialized to `_startTokenId()`.\n unchecked {\n return _currentIndex - _startTokenId();\n }\n }\n\n /**\n * @dev Returns the total number of tokens burned.\n */\n function _totalBurned() internal view virtual returns (uint256) {\n return _burnCounter;\n }\n\n // =============================================================\n // ADDRESS DATA OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the number of tokens in `owner`'s account.\n */\n function balanceOf(address owner)\n public\n view\n virtual\n override\n returns (uint256)\n {\n if (owner == address(0)) revert BalanceQueryForZeroAddress();\n return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;\n }\n\n /**\n * Returns the number of tokens minted by `owner`.\n */\n function _numberMinted(address owner) internal view returns (uint256) {\n return\n (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) &\n _BITMASK_ADDRESS_DATA_ENTRY;\n }\n\n /**\n * Returns the number of tokens burned by or on behalf of `owner`.\n */\n function _numberBurned(address owner) internal view returns (uint256) {\n return\n (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) &\n _BITMASK_ADDRESS_DATA_ENTRY;\n }\n\n /**\n * Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).\n */\n function _getAux(address owner) internal view returns (uint64) {\n return uint64(_packedAddressData[owner] >> _BITPOS_AUX);\n }\n\n /**\n * Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).\n * If there are multiple variables, please pack them into a uint64.\n */\n function _setAux(address owner, uint64 aux) internal virtual {\n uint256 packed = _packedAddressData[owner];\n uint256 auxCasted;\n // Cast `aux` with assembly to avoid redundant masking.\n assembly {\n auxCasted := aux\n }\n packed =\n (packed & _BITMASK_AUX_COMPLEMENT) |\n (auxCasted << _BITPOS_AUX);\n _packedAddressData[owner] = packed;\n }\n\n // =============================================================\n // IERC165\n // =============================================================\n\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30000 gas.\n */\n function supportsInterface(bytes4 interfaceId)\n public\n view\n virtual\n override\n returns (bool)\n {\n // The interface IDs are constants representing the first 4 bytes\n // of the XOR of all function selectors in the interface.\n // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)\n // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)\n return\n interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.\n interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.\n interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.\n }\n\n // =============================================================\n // IERC721Metadata\n // =============================================================\n\n /**\n * @dev Returns the token collection name.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId)\n public\n view\n virtual\n override\n returns (string memory)\n {\n if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\n\n string memory baseURI = _baseURI();\n return\n bytes(baseURI).length != 0\n ? string(abi.encodePacked(baseURI, _toString(tokenId)))\n : \"\";\n }\n\n /**\n * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n * by default, it can be overridden in child contracts.\n */\n function _baseURI() internal view virtual returns (string memory) {\n return \"\";\n }\n\n // =============================================================\n // OWNERSHIPS OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId)\n public\n view\n virtual\n override\n returns (address)\n {\n return address(uint160(_packedOwnershipOf(tokenId)));\n }\n\n /**\n * @dev Gas spent here starts off proportional to the maximum mint batch size.\n * It gradually moves to O(1) as tokens get transferred around over time.\n */\n function _ownershipOf(uint256 tokenId)\n internal\n view\n virtual\n returns (TokenOwnership memory)\n {\n return _unpackedOwnership(_packedOwnershipOf(tokenId));\n }\n\n /**\n * @dev Returns the unpacked `TokenOwnership` struct at `index`.\n */\n function _ownershipAt(uint256 index)\n internal\n view\n virtual\n returns (TokenOwnership memory)\n {\n return _unpackedOwnership(_packedOwnerships[index]);\n }\n\n /**\n * @dev Initializes the ownership slot minted at `index` for efficiency purposes.\n */\n function _initializeOwnershipAt(uint256 index) internal virtual {\n if (_packedOwnerships[index] == 0) {\n _packedOwnerships[index] = _packedOwnershipOf(index);\n }\n }\n\n /**\n * Returns the packed ownership data of `tokenId`.\n */\n function _packedOwnershipOf(uint256 tokenId)\n private\n view\n returns (uint256)\n {\n uint256 curr = tokenId;\n\n unchecked {\n if (_startTokenId() <= curr) {\n if (curr < _currentIndex) {\n uint256 packed = _packedOwnerships[curr];\n // If not burned.\n if (packed & _BITMASK_BURNED == 0) {\n // Invariant:\n // There will always be an initialized ownership slot\n // (i.e. `ownership.addr != address(0) && ownership.burned == false`)\n // before an unintialized ownership slot\n // (i.e. `ownership.addr == address(0) && ownership.burned == false`)\n // Hence, `curr` will not underflow.\n //\n // We can directly compare the packed value.\n // If the address is zero, packed will be zero.\n while (packed == 0) {\n packed = _packedOwnerships[--curr];\n }\n return packed;\n }\n }\n }\n }\n revert OwnerQueryForNonexistentToken();\n }\n\n /**\n * @dev Returns the unpacked `TokenOwnership` struct from `packed`.\n */\n function _unpackedOwnership(uint256 packed)\n private\n pure\n returns (TokenOwnership memory ownership)\n {\n ownership.addr = address(uint160(packed));\n ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);\n ownership.burned = packed & _BITMASK_BURNED != 0;\n ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);\n }\n\n /**\n * @dev Packs ownership data into a single uint256.\n */\n function _packOwnershipData(address owner, uint256 flags)\n private\n view\n returns (uint256 result)\n {\n assembly {\n // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.\n owner := and(owner, _BITMASK_ADDRESS)\n // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.\n result := or(\n owner,\n or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags)\n )\n }\n }\n\n /**\n * @dev Returns the `nextInitialized` flag set if `quantity` equals 1.\n */\n function _nextInitializedFlag(uint256 quantity)\n private\n pure\n returns (uint256 result)\n {\n // For branchless setting of the `nextInitialized` flag.\n assembly {\n // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.\n result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))\n }\n }\n\n // =============================================================\n // APPROVAL OPERATIONS\n // =============================================================\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the\n * zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) public virtual override {\n address owner = ownerOf(tokenId);\n\n if (_msgSenderERC721A() != owner) {\n if (!isApprovedForAll(owner, _msgSenderERC721A())) {\n revert ApprovalCallerNotOwnerNorApproved();\n }\n }\n\n _tokenApprovals[tokenId].value = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId)\n public\n view\n virtual\n override\n returns (address)\n {\n if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();\n\n return _tokenApprovals[tokenId].value;\n }\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom}\n * for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool approved)\n public\n virtual\n override\n {\n _operatorApprovals[_msgSenderERC721A()][operator] = approved;\n emit ApprovalForAll(_msgSenderERC721A(), operator, approved);\n }\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address owner, address operator)\n public\n view\n virtual\n override\n returns (bool)\n {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Returns whether `tokenId` exists.\n *\n * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n *\n * Tokens start existing when they are minted. See {_mint}.\n */\n function _exists(uint256 tokenId) internal view virtual returns (bool) {\n return\n _startTokenId() <= tokenId &&\n tokenId < _currentIndex && // If within bounds,\n _packedOwnerships[tokenId] & _BITMASK_BURNED == 0; // and not burned.\n }\n\n /**\n * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.\n */\n function _isSenderApprovedOrOwner(\n address approvedAddress,\n address owner,\n address msgSender\n ) private pure returns (bool result) {\n assembly {\n // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.\n owner := and(owner, _BITMASK_ADDRESS)\n // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.\n msgSender := and(msgSender, _BITMASK_ADDRESS)\n // `msgSender == owner || msgSender == approvedAddress`.\n result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))\n }\n }\n\n /**\n * @dev Returns the storage slot and value for the approved address of `tokenId`.\n */\n function _getApprovedSlotAndAddress(uint256 tokenId)\n private\n view\n returns (uint256 approvedAddressSlot, address approvedAddress)\n {\n TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId];\n // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`.\n assembly {\n approvedAddressSlot := tokenApproval.slot\n approvedAddress := sload(approvedAddressSlot)\n }\n }\n\n // =============================================================\n // TRANSFER OPERATIONS\n // =============================================================\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);\n\n if (address(uint160(prevOwnershipPacked)) != from)\n revert TransferFromIncorrectOwner();\n\n (\n uint256 approvedAddressSlot,\n address approvedAddress\n ) = _getApprovedSlotAndAddress(tokenId);\n\n // The nested ifs save around 20+ gas over a compound boolean condition.\n if (\n !_isSenderApprovedOrOwner(\n approvedAddress,\n from,\n _msgSenderERC721A()\n )\n ) {\n if (!isApprovedForAll(from, _msgSenderERC721A()))\n revert TransferCallerNotOwnerNorApproved();\n }\n\n if (to == address(0)) revert TransferToZeroAddress();\n\n _beforeTokenTransfers(from, to, tokenId, 1);\n\n // Clear approvals from the previous owner.\n assembly {\n if approvedAddress {\n // This is equivalent to `delete _tokenApprovals[tokenId]`.\n sstore(approvedAddressSlot, 0)\n }\n }\n\n // Underflow of the sender's balance is impossible because we check for\n // ownership above and the recipient's balance can't realistically overflow.\n // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.\n unchecked {\n // We can directly increment and decrement the balances.\n --_packedAddressData[from]; // Updates: `balance -= 1`.\n ++_packedAddressData[to]; // Updates: `balance += 1`.\n\n // Updates:\n // - `address` to the next owner.\n // - `startTimestamp` to the timestamp of transfering.\n // - `burned` to `false`.\n // - `nextInitialized` to `true`.\n _packedOwnerships[tokenId] = _packOwnershipData(\n to,\n _BITMASK_NEXT_INITIALIZED |\n _nextExtraData(from, to, prevOwnershipPacked)\n );\n\n // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .\n if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {\n uint256 nextTokenId = tokenId + 1;\n // If the next slot's address is zero and not burned (i.e. packed value is zero).\n if (_packedOwnerships[nextTokenId] == 0) {\n // If the next slot is within bounds.\n if (nextTokenId != _currentIndex) {\n // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.\n _packedOwnerships[nextTokenId] = prevOwnershipPacked;\n }\n }\n }\n }\n\n emit Transfer(from, to, tokenId);\n _afterTokenTransfers(from, to, tokenId, 1);\n }\n\n /**\n * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) public virtual override {\n transferFrom(from, to, tokenId);\n if (to.code.length != 0) {\n if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {\n revert TransferToNonERC721ReceiverImplementer();\n }\n }\n }\n\n /**\n * @dev Hook that is called before a set of serially-ordered token IDs\n * are about to be transferred. This includes minting.\n * And also called before burning one token.\n *\n * `startTokenId` - the first token ID to be transferred.\n * `quantity` - the amount to be transferred.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, `tokenId` will be burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _beforeTokenTransfers(\n address from,\n address to,\n uint256 startTokenId,\n uint256 quantity\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after a set of serially-ordered token IDs\n * have been transferred. This includes minting.\n * And also called after one token has been burned.\n *\n * `startTokenId` - the first token ID to be transferred.\n * `quantity` - the amount to be transferred.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been\n * transferred to `to`.\n * - When `from` is zero, `tokenId` has been minted for `to`.\n * - When `to` is zero, `tokenId` has been burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _afterTokenTransfers(\n address from,\n address to,\n uint256 startTokenId,\n uint256 quantity\n ) internal virtual {}\n\n /**\n * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.\n *\n * `from` - Previous owner of the given token ID.\n * `to` - Target address that will receive the token.\n * `tokenId` - Token ID to be transferred.\n * `_data` - Optional data to send along with the call.\n *\n * Returns whether the call correctly returned the expected magic value.\n */\n function _checkContractOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) private returns (bool) {\n try\n ERC721A__IERC721Receiver(to).onERC721Received(\n _msgSenderERC721A(),\n from,\n tokenId,\n _data\n )\n returns (bytes4 retval) {\n return\n retval ==\n ERC721A__IERC721Receiver(to).onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert TransferToNonERC721ReceiverImplementer();\n } else {\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n }\n\n // =============================================================\n // MINT OPERATIONS\n // =============================================================\n\n /**\n * @dev Mints `quantity` tokens and transfers them to `to`.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `quantity` must be greater than 0.\n *\n * Emits a {Transfer} event for each mint.\n */\n function _mint(address to, uint256 quantity) internal virtual {\n uint256 startTokenId = _currentIndex;\n if (quantity == 0) revert MintZeroQuantity();\n\n _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n // Overflows are incredibly unrealistic.\n // `balance` and `numberMinted` have a maximum limit of 2**64.\n // `tokenId` has a maximum limit of 2**256.\n unchecked {\n // Updates:\n // - `balance += quantity`.\n // - `numberMinted += quantity`.\n //\n // We can directly add to the `balance` and `numberMinted`.\n _packedAddressData[to] +=\n quantity *\n ((1 << _BITPOS_NUMBER_MINTED) | 1);\n\n // Updates:\n // - `address` to the owner.\n // - `startTimestamp` to the timestamp of minting.\n // - `burned` to `false`.\n // - `nextInitialized` to `quantity == 1`.\n _packedOwnerships[startTokenId] = _packOwnershipData(\n to,\n _nextInitializedFlag(quantity) |\n _nextExtraData(address(0), to, 0)\n );\n\n uint256 toMasked;\n uint256 end = startTokenId + quantity;\n\n // Use assembly to loop and emit the `Transfer` event for gas savings.\n // The duplicated `log4` removes an extra check and reduces stack juggling.\n // The assembly, together with the surrounding Solidity code, have been\n // delicately arranged to nudge the compiler into producing optimized opcodes.\n assembly {\n // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.\n toMasked := and(to, _BITMASK_ADDRESS)\n // Emit the `Transfer` event.\n log4(\n 0, // Start of data (0, since no data).\n 0, // End of data (0, since no data).\n _TRANSFER_EVENT_SIGNATURE, // Signature.\n 0, // `address(0)`.\n toMasked, // `to`.\n startTokenId // `tokenId`.\n )\n\n // The `iszero(eq(,))` check ensures that large values of `quantity`\n // that overflows uint256 will make the loop run out of gas.\n // The compiler will optimize the `iszero` away for performance.\n for {\n let tokenId := add(startTokenId, 1)\n } iszero(eq(tokenId, end)) {\n tokenId := add(tokenId, 1)\n } {\n // Emit the `Transfer` event. Similar to above.\n log4(0, 0, _TRANSFER_EVENT_SIGNATURE, 0, toMasked, tokenId)\n }\n }\n if (toMasked == 0) revert MintToZeroAddress();\n\n _currentIndex = end;\n }\n _afterTokenTransfers(address(0), to, startTokenId, quantity);\n }\n\n /**\n * @dev Mints `quantity` tokens and transfers them to `to`.\n *\n * This function is intended for efficient minting only during contract creation.\n *\n * It emits only one {ConsecutiveTransfer} as defined in\n * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309),\n * instead of a sequence of {Transfer} event(s).\n *\n * Calling this function outside of contract creation WILL make your contract\n * non-compliant with the ERC721 standard.\n * For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309\n * {ConsecutiveTransfer} event is only permissible during contract creation.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `quantity` must be greater than 0.\n *\n * Emits a {ConsecutiveTransfer} event.\n */\n function _mintERC2309(address to, uint256 quantity) internal virtual {\n uint256 startTokenId = _currentIndex;\n if (to == address(0)) revert MintToZeroAddress();\n if (quantity == 0) revert MintZeroQuantity();\n if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT)\n revert MintERC2309QuantityExceedsLimit();\n\n _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n // Overflows are unrealistic due to the above check for `quantity` to be below the limit.\n unchecked {\n // Updates:\n // - `balance += quantity`.\n // - `numberMinted += quantity`.\n //\n // We can directly add to the `balance` and `numberMinted`.\n _packedAddressData[to] +=\n quantity *\n ((1 << _BITPOS_NUMBER_MINTED) | 1);\n\n // Updates:\n // - `address` to the owner.\n // - `startTimestamp` to the timestamp of minting.\n // - `burned` to `false`.\n // - `nextInitialized` to `quantity == 1`.\n _packedOwnerships[startTokenId] = _packOwnershipData(\n to,\n _nextInitializedFlag(quantity) |\n _nextExtraData(address(0), to, 0)\n );\n\n emit ConsecutiveTransfer(\n startTokenId,\n startTokenId + quantity - 1,\n address(0),\n to\n );\n\n _currentIndex = startTokenId + quantity;\n }\n _afterTokenTransfers(address(0), to, startTokenId, quantity);\n }\n\n /**\n * @dev Safely mints `quantity` tokens and transfers them to `to`.\n *\n * Requirements:\n *\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called for each safe transfer.\n * - `quantity` must be greater than 0.\n *\n * See {_mint}.\n *\n * Emits a {Transfer} event for each mint.\n */\n function _safeMint(\n address to,\n uint256 quantity,\n bytes memory _data\n ) internal virtual {\n _mint(to, quantity);\n\n unchecked {\n if (to.code.length != 0) {\n uint256 end = _currentIndex;\n uint256 index = end - quantity;\n do {\n if (\n !_checkContractOnERC721Received(\n address(0),\n to,\n index++,\n _data\n )\n ) {\n revert TransferToNonERC721ReceiverImplementer();\n }\n } while (index < end);\n // Reentrancy protection.\n if (_currentIndex != end) revert();\n }\n }\n }\n\n /**\n * @dev Equivalent to `_safeMint(to, quantity, '')`.\n */\n function _safeMint(address to, uint256 quantity) internal virtual {\n _safeMint(to, quantity, \"\");\n }\n\n // =============================================================\n // BURN OPERATIONS\n // =============================================================\n\n /**\n * @dev Equivalent to `_burn(tokenId, false)`.\n */\n function _burn(uint256 tokenId) internal virtual {\n _burn(tokenId, false);\n }\n\n /**\n * @dev Destroys `tokenId`.\n * The approval is cleared when the token is burned.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits a {Transfer} event.\n */\n function _burn(uint256 tokenId, bool approvalCheck) internal virtual {\n uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);\n\n address from = address(uint160(prevOwnershipPacked));\n\n (\n uint256 approvedAddressSlot,\n address approvedAddress\n ) = _getApprovedSlotAndAddress(tokenId);\n\n if (approvalCheck) {\n // The nested ifs save around 20+ gas over a compound boolean condition.\n if (\n !_isSenderApprovedOrOwner(\n approvedAddress,\n from,\n _msgSenderERC721A()\n )\n ) {\n if (!isApprovedForAll(from, _msgSenderERC721A()))\n revert TransferCallerNotOwnerNorApproved();\n }\n }\n\n _beforeTokenTransfers(from, address(0), tokenId, 1);\n\n // Clear approvals from the previous owner.\n assembly {\n if approvedAddress {\n // This is equivalent to `delete _tokenApprovals[tokenId]`.\n sstore(approvedAddressSlot, 0)\n }\n }\n\n // Underflow of the sender's balance is impossible because we check for\n // ownership above and the recipient's balance can't realistically overflow.\n // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.\n unchecked {\n // Updates:\n // - `balance -= 1`.\n // - `numberBurned += 1`.\n //\n // We can directly decrement the balance, and increment the number burned.\n // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.\n _packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;\n\n // Updates:\n // - `address` to the last owner.\n // - `startTimestamp` to the timestamp of burning.\n // - `burned` to `true`.\n // - `nextInitialized` to `true`.\n _packedOwnerships[tokenId] = _packOwnershipData(\n from,\n (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) |\n _nextExtraData(from, address(0), prevOwnershipPacked)\n );\n\n // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .\n if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {\n uint256 nextTokenId = tokenId + 1;\n // If the next slot's address is zero and not burned (i.e. packed value is zero).\n if (_packedOwnerships[nextTokenId] == 0) {\n // If the next slot is within bounds.\n if (nextTokenId != _currentIndex) {\n // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.\n _packedOwnerships[nextTokenId] = prevOwnershipPacked;\n }\n }\n }\n }\n\n emit Transfer(from, address(0), tokenId);\n _afterTokenTransfers(from, address(0), tokenId, 1);\n\n // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.\n unchecked {\n _burnCounter++;\n }\n }\n\n // =============================================================\n // EXTRA DATA OPERATIONS\n // =============================================================\n\n /**\n * @dev Directly sets the extra data for the ownership data `index`.\n */\n function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {\n uint256 packed = _packedOwnerships[index];\n if (packed == 0) revert OwnershipNotInitializedForExtraData();\n uint256 extraDataCasted;\n // Cast `extraData` with assembly to avoid redundant masking.\n assembly {\n extraDataCasted := extraData\n }\n packed =\n (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) |\n (extraDataCasted << _BITPOS_EXTRA_DATA);\n _packedOwnerships[index] = packed;\n }\n\n /**\n * @dev Called during each token transfer to set the 24bit `extraData` field.\n * Intended to be overridden by the cosumer contract.\n *\n * `previousExtraData` - the value of `extraData` before transfer.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, `tokenId` will be burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _extraData(\n address from,\n address to,\n uint24 previousExtraData\n ) internal view virtual returns (uint24) {}\n\n /**\n * @dev Returns the next extra data for the packed ownership data.\n * The returned result is shifted into position.\n */\n function _nextExtraData(\n address from,\n address to,\n uint256 prevOwnershipPacked\n ) private view returns (uint256) {\n uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);\n return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;\n }\n\n // =============================================================\n // OTHER OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the message sender (defaults to `msg.sender`).\n *\n * If you are writing GSN compatible contracts, you need to override this function.\n */\n function _msgSenderERC721A() internal view virtual returns (address) {\n return msg.sender;\n }\n\n /**\n * @dev Converts a uint256 to its ASCII string decimal representation.\n */\n function _toString(uint256 value)\n internal\n pure\n virtual\n returns (string memory str)\n {\n assembly {\n // The maximum value of a uint256 contains 78 digits (1 byte per digit), but\n // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.\n // We will need 1 word for the trailing zeros padding, 1 word for the length,\n // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.\n let m := add(mload(0x40), 0xa0)\n // Update the free memory pointer to allocate.\n mstore(0x40, m)\n // Assign the `str` to the end.\n str := sub(m, 0x20)\n // Zeroize the slot after the string.\n mstore(str, 0)\n\n // Cache the end of the memory to calculate the length later.\n let end := str\n\n // We write the string from rightmost digit to leftmost digit.\n // The following is essentially a do-while loop that also handles the zero case.\n // prettier-ignore\n for { let temp := value } 1 {} {\n str := sub(str, 1)\n // Write the character to the pointer.\n // The ASCII index of the '0' character is 48.\n mstore8(str, add(48, mod(temp, 10)))\n // Keep dividing `temp` until zero.\n temp := div(temp, 10)\n // prettier-ignore\n if iszero(temp) { break }\n }\n\n let length := sub(end, str)\n // Move the pointer 32 bytes leftwards to make room for the length.\n str := sub(str, 0x20)\n // Store the length.\n mstore(str, length)\n }\n }\n}\n" }, "src/clones/ERC721ContractMetadataCloneable.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n ISeaDropTokenContractMetadata\n} from \"../interfaces/ISeaDropTokenContractMetadata.sol\";\n\nimport { ERC721ACloneable } from \"./ERC721ACloneable.sol\";\n\nimport { TwoStepOwnable } from \"utility-contracts/TwoStepOwnable.sol\";\n\nimport { IERC2981 } from \"openzeppelin-contracts/interfaces/IERC2981.sol\";\n\nimport {\n IERC165\n} from \"openzeppelin-contracts/utils/introspection/IERC165.sol\";\n\n/**\n * @title ERC721ContractMetadataCloneable\n * @author James Wenzel (emo.eth)\n * @author Ryan Ghods (ralxz.eth)\n * @author Stephan Min (stephanm.eth)\n * @notice ERC721ContractMetadata is a token contract that extends ERC721A\n * with additional metadata and ownership capabilities.\n */\ncontract ERC721ContractMetadataCloneable is\n ERC721ACloneable,\n TwoStepOwnable,\n ISeaDropTokenContractMetadata\n{\n /// @notice Track the max supply.\n uint256 _maxSupply;\n\n /// @notice Track the base URI for token metadata.\n string _tokenBaseURI;\n\n /// @notice Track the contract URI for contract metadata.\n string _contractURI;\n\n /// @notice Track the provenance hash for guaranteeing metadata order\n /// for random reveals.\n bytes32 _provenanceHash;\n\n /// @notice Track the royalty info: address to receive royalties, and\n /// royalty basis points.\n RoyaltyInfo _royaltyInfo;\n\n /**\n * @dev Reverts if the sender is not the owner or the contract itself.\n * This function is inlined instead of being a modifier\n * to save contract space from being inlined N times.\n */\n function _onlyOwnerOrSelf() internal view {\n if (\n _cast(msg.sender == owner()) | _cast(msg.sender == address(this)) ==\n 0\n ) {\n revert OnlyOwner();\n }\n }\n\n /**\n * @notice Sets the base URI for the token metadata and emits an event.\n *\n * @param newBaseURI The new base URI to set.\n */\n function setBaseURI(string calldata newBaseURI) external override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Set the new base URI.\n _tokenBaseURI = newBaseURI;\n\n // Emit an event with the update.\n if (totalSupply() != 0) {\n emit BatchMetadataUpdate(1, _nextTokenId() - 1);\n }\n }\n\n /**\n * @notice Sets the contract URI for contract metadata.\n *\n * @param newContractURI The new contract URI.\n */\n function setContractURI(string calldata newContractURI) external override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Set the new contract URI.\n _contractURI = newContractURI;\n\n // Emit an event with the update.\n emit ContractURIUpdated(newContractURI);\n }\n\n /**\n * @notice Emit an event notifying metadata updates for\n * a range of token ids, according to EIP-4906.\n *\n * @param fromTokenId The start token id.\n * @param toTokenId The end token id.\n */\n function emitBatchMetadataUpdate(uint256 fromTokenId, uint256 toTokenId)\n external\n {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Emit an event with the update.\n emit BatchMetadataUpdate(fromTokenId, toTokenId);\n }\n\n /**\n * @notice Sets the max token supply and emits an event.\n *\n * @param newMaxSupply The new max supply to set.\n */\n function setMaxSupply(uint256 newMaxSupply) external {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the max supply does not exceed the maximum value of uint64.\n if (newMaxSupply > 2**64 - 1) {\n revert CannotExceedMaxSupplyOfUint64(newMaxSupply);\n }\n\n // Set the new max supply.\n _maxSupply = newMaxSupply;\n\n // Emit an event with the update.\n emit MaxSupplyUpdated(newMaxSupply);\n }\n\n /**\n * @notice Sets the provenance hash and emits an event.\n *\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it has not been\n * modified after mint started.\n *\n * This function will revert after the first item has been minted.\n *\n * @param newProvenanceHash The new provenance hash to set.\n */\n function setProvenanceHash(bytes32 newProvenanceHash) external {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Revert if any items have been minted.\n if (_totalMinted() > 0) {\n revert ProvenanceHashCannotBeSetAfterMintStarted();\n }\n\n // Keep track of the old provenance hash for emitting with the event.\n bytes32 oldProvenanceHash = _provenanceHash;\n\n // Set the new provenance hash.\n _provenanceHash = newProvenanceHash;\n\n // Emit an event with the update.\n emit ProvenanceHashUpdated(oldProvenanceHash, newProvenanceHash);\n }\n\n /**\n * @notice Sets the address and basis points for royalties.\n *\n * @param newInfo The struct to configure royalties.\n */\n function setRoyaltyInfo(RoyaltyInfo calldata newInfo) external {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Revert if the new royalty address is the zero address.\n if (newInfo.royaltyAddress == address(0)) {\n revert RoyaltyAddressCannotBeZeroAddress();\n }\n\n // Revert if the new basis points is greater than 10_000.\n if (newInfo.royaltyBps > 10_000) {\n revert InvalidRoyaltyBasisPoints(newInfo.royaltyBps);\n }\n\n // Set the new royalty info.\n _royaltyInfo = newInfo;\n\n // Emit an event with the updated params.\n emit RoyaltyInfoUpdated(newInfo.royaltyAddress, newInfo.royaltyBps);\n }\n\n /**\n * @notice Returns the base URI for token metadata.\n */\n function baseURI() external view override returns (string memory) {\n return _baseURI();\n }\n\n /**\n * @notice Returns the base URI for the contract, which ERC721A uses\n * to return tokenURI.\n */\n function _baseURI() internal view virtual override returns (string memory) {\n return _tokenBaseURI;\n }\n\n /**\n * @notice Returns the contract URI for contract metadata.\n */\n function contractURI() external view override returns (string memory) {\n return _contractURI;\n }\n\n /**\n * @notice Returns the max token supply.\n */\n function maxSupply() public view returns (uint256) {\n return _maxSupply;\n }\n\n /**\n * @notice Returns the provenance hash.\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it is unmodified\n * after mint has started.\n */\n function provenanceHash() external view override returns (bytes32) {\n return _provenanceHash;\n }\n\n /**\n * @notice Returns the address that receives royalties.\n */\n function royaltyAddress() external view returns (address) {\n return _royaltyInfo.royaltyAddress;\n }\n\n /**\n * @notice Returns the royalty basis points out of 10_000.\n */\n function royaltyBasisPoints() external view returns (uint256) {\n return _royaltyInfo.royaltyBps;\n }\n\n /**\n * @notice Called with the sale price to determine how much royalty\n * is owed and to whom.\n *\n * @ param _tokenId The NFT asset queried for royalty information.\n * @param _salePrice The sale price of the NFT asset specified by\n * _tokenId.\n *\n * @return receiver Address of who should be sent the royalty payment.\n * @return royaltyAmount The royalty payment amount for _salePrice.\n */\n function royaltyInfo(\n uint256,\n /* _tokenId */\n uint256 _salePrice\n ) external view returns (address receiver, uint256 royaltyAmount) {\n // Put the royalty info on the stack for more efficient access.\n RoyaltyInfo storage info = _royaltyInfo;\n\n // Set the royalty amount to the sale price times the royalty basis\n // points divided by 10_000.\n royaltyAmount = (_salePrice * info.royaltyBps) / 10_000;\n\n // Set the receiver of the royalty.\n receiver = info.royaltyAddress;\n }\n\n /**\n * @notice Returns whether the interface is supported.\n *\n * @param interfaceId The interface id to check against.\n */\n function supportsInterface(bytes4 interfaceId)\n public\n view\n virtual\n override(IERC165, ERC721ACloneable)\n returns (bool)\n {\n return\n interfaceId == type(IERC2981).interfaceId ||\n interfaceId == 0x49064906 || // ERC-4906\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev Internal pure function to cast a `bool` value to a `uint256` value.\n *\n * @param b The `bool` value to cast.\n *\n * @return u The `uint256` value.\n */\n function _cast(bool b) internal pure returns (uint256 u) {\n assembly {\n u := b\n }\n }\n}\n" }, "src/clones/ERC721SeaDropCloneable.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n ERC721ContractMetadataCloneable,\n ISeaDropTokenContractMetadata\n} from \"./ERC721ContractMetadataCloneable.sol\";\n\nimport {\n INonFungibleSeaDropToken\n} from \"../interfaces/INonFungibleSeaDropToken.sol\";\n\nimport { ISeaDrop } from \"../interfaces/ISeaDrop.sol\";\n\nimport {\n AllowListData,\n PublicDrop,\n TokenGatedDropStage,\n SignedMintValidationParams\n} from \"../lib/SeaDropStructs.sol\";\n\nimport {\n ERC721SeaDropStructsErrorsAndEvents\n} from \"../lib/ERC721SeaDropStructsErrorsAndEvents.sol\";\n\nimport { ERC721ACloneable } from \"./ERC721ACloneable.sol\";\n\nimport {\n ReentrancyGuardUpgradeable\n} from \"openzeppelin-contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol\";\n\nimport {\n IERC165\n} from \"openzeppelin-contracts/utils/introspection/IERC165.sol\";\n\nimport {\n DefaultOperatorFiltererUpgradeable\n} from \"operator-filter-registry/upgradeable/DefaultOperatorFiltererUpgradeable.sol\";\n\n/**\n * @title ERC721SeaDrop\n * @author James Wenzel (emo.eth)\n * @author Ryan Ghods (ralxz.eth)\n * @author Stephan Min (stephanm.eth)\n * @notice ERC721SeaDrop is a token contract that contains methods\n * to properly interact with SeaDrop.\n */\ncontract ERC721SeaDropCloneable is\n ERC721ContractMetadataCloneable,\n INonFungibleSeaDropToken,\n ERC721SeaDropStructsErrorsAndEvents,\n ReentrancyGuardUpgradeable,\n DefaultOperatorFiltererUpgradeable\n{\n /// @notice Track the allowed SeaDrop addresses.\n mapping(address => bool) internal _allowedSeaDrop;\n\n /// @notice Track the enumerated allowed SeaDrop addresses.\n address[] internal _enumeratedAllowedSeaDrop;\n\n /**\n * @dev Reverts if not an allowed SeaDrop contract.\n * This function is inlined instead of being a modifier\n * to save contract space from being inlined N times.\n *\n * @param seaDrop The SeaDrop address to check if allowed.\n */\n function _onlyAllowedSeaDrop(address seaDrop) internal view {\n if (_allowedSeaDrop[seaDrop] != true) {\n revert OnlyAllowedSeaDrop();\n }\n }\n\n /**\n * @notice Deploy the token contract with its name, symbol,\n * and allowed SeaDrop addresses.\n */\n function initialize(\n string calldata __name,\n string calldata __symbol,\n address[] calldata allowedSeaDrop,\n address initialOwner\n ) public initializer {\n __ERC721ACloneable__init(__name, __symbol);\n __ReentrancyGuard_init();\n __DefaultOperatorFilterer_init();\n _updateAllowedSeaDrop(allowedSeaDrop);\n _transferOwnership(initialOwner);\n emit SeaDropTokenDeployed();\n }\n\n /**\n * @notice Update the allowed SeaDrop contracts.\n * Only the owner or administrator can use this function.\n *\n * @param allowedSeaDrop The allowed SeaDrop addresses.\n */\n function updateAllowedSeaDrop(address[] calldata allowedSeaDrop)\n external\n virtual\n override\n onlyOwner\n {\n _updateAllowedSeaDrop(allowedSeaDrop);\n }\n\n /**\n * @notice Internal function to update the allowed SeaDrop contracts.\n *\n * @param allowedSeaDrop The allowed SeaDrop addresses.\n */\n function _updateAllowedSeaDrop(address[] calldata allowedSeaDrop) internal {\n // Put the length on the stack for more efficient access.\n uint256 enumeratedAllowedSeaDropLength = _enumeratedAllowedSeaDrop\n .length;\n uint256 allowedSeaDropLength = allowedSeaDrop.length;\n\n // Reset the old mapping.\n for (uint256 i = 0; i < enumeratedAllowedSeaDropLength; ) {\n _allowedSeaDrop[_enumeratedAllowedSeaDrop[i]] = false;\n unchecked {\n ++i;\n }\n }\n\n // Set the new mapping for allowed SeaDrop contracts.\n for (uint256 i = 0; i < allowedSeaDropLength; ) {\n _allowedSeaDrop[allowedSeaDrop[i]] = true;\n unchecked {\n ++i;\n }\n }\n\n // Set the enumeration.\n _enumeratedAllowedSeaDrop = allowedSeaDrop;\n\n // Emit an event for the update.\n emit AllowedSeaDropUpdated(allowedSeaDrop);\n }\n\n /**\n * @dev Overrides the `_startTokenId` function from ERC721A\n * to start at token id `1`.\n *\n * This is to avoid future possible problems since `0` is usually\n * used to signal values that have not been set or have been removed.\n */\n function _startTokenId() internal view virtual override returns (uint256) {\n return 1;\n }\n\n /**\n * @dev Overrides the `tokenURI()` function from ERC721A\n * to return just the base URI if it is implied to not be a directory.\n *\n * This is to help with ERC721 contracts in which the same token URI\n * is desired for each token, such as when the tokenURI is 'unrevealed'.\n */\n function tokenURI(uint256 tokenId)\n public\n view\n virtual\n override\n returns (string memory)\n {\n if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\n\n string memory baseURI = _baseURI();\n\n // Exit early if the baseURI is empty.\n if (bytes(baseURI).length == 0) {\n return \"\";\n }\n\n // Check if the last character in baseURI is a slash.\n if (bytes(baseURI)[bytes(baseURI).length - 1] != bytes(\"/\")[0]) {\n return baseURI;\n }\n\n return string(abi.encodePacked(baseURI, _toString(tokenId)));\n }\n\n /**\n * @notice Mint tokens, restricted to the SeaDrop contract.\n *\n * @dev NOTE: If a token registers itself with multiple SeaDrop\n * contracts, the implementation of this function should guard\n * against reentrancy. If the implementing token uses\n * _safeMint(), or a feeRecipient with a malicious receive() hook\n * is specified, the token or fee recipients may be able to execute\n * another mint in the same transaction via a separate SeaDrop\n * contract.\n * This is dangerous if an implementing token does not correctly\n * update the minterNumMinted and currentTotalSupply values before\n * transferring minted tokens, as SeaDrop references these values\n * to enforce token limits on a per-wallet and per-stage basis.\n *\n * ERC721A tracks these values automatically, but this note and\n * nonReentrant modifier are left here to encourage best-practices\n * when referencing this contract.\n *\n * @param minter The address to mint to.\n * @param quantity The number of tokens to mint.\n */\n function mintSeaDrop(address minter, uint256 quantity)\n external\n virtual\n override\n nonReentrant\n {\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(msg.sender);\n\n // Extra safety check to ensure the max supply is not exceeded.\n if (_totalMinted() + quantity > maxSupply()) {\n revert MintQuantityExceedsMaxSupply(\n _totalMinted() + quantity,\n maxSupply()\n );\n }\n\n // Mint the quantity of tokens to the minter.\n _safeMint(minter, quantity);\n }\n\n /**\n * @notice Update the public drop data for this nft contract on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param publicDrop The public drop data.\n */\n function updatePublicDrop(\n address seaDropImpl,\n PublicDrop calldata publicDrop\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the public drop data on SeaDrop.\n ISeaDrop(seaDropImpl).updatePublicDrop(publicDrop);\n }\n\n /**\n * @notice Update the allow list data for this nft contract on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param allowListData The allow list data.\n */\n function updateAllowList(\n address seaDropImpl,\n AllowListData calldata allowListData\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the allow list on SeaDrop.\n ISeaDrop(seaDropImpl).updateAllowList(allowListData);\n }\n\n /**\n * @notice Update the token gated drop stage data for this nft contract\n * on SeaDrop.\n * Only the owner can use this function.\n *\n * Note: If two INonFungibleSeaDropToken tokens are doing\n * simultaneous token gated drop promotions for each other,\n * they can be minted by the same actor until\n * `maxTokenSupplyForStage` is reached. Please ensure the\n * `allowedNftToken` is not running an active drop during the\n * `dropStage` time period.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param allowedNftToken The allowed nft token.\n * @param dropStage The token gated drop stage data.\n */\n function updateTokenGatedDrop(\n address seaDropImpl,\n address allowedNftToken,\n TokenGatedDropStage calldata dropStage\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the token gated drop stage.\n ISeaDrop(seaDropImpl).updateTokenGatedDrop(allowedNftToken, dropStage);\n }\n\n /**\n * @notice Update the drop URI for this nft contract on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param dropURI The new drop URI.\n */\n function updateDropURI(address seaDropImpl, string calldata dropURI)\n external\n virtual\n override\n {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the drop URI.\n ISeaDrop(seaDropImpl).updateDropURI(dropURI);\n }\n\n /**\n * @notice Update the creator payout address for this nft contract on\n * SeaDrop.\n * Only the owner can set the creator payout address.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param payoutAddress The new payout address.\n */\n function updateCreatorPayoutAddress(\n address seaDropImpl,\n address payoutAddress\n ) external {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the creator payout address.\n ISeaDrop(seaDropImpl).updateCreatorPayoutAddress(payoutAddress);\n }\n\n /**\n * @notice Update the allowed fee recipient for this nft contract\n * on SeaDrop.\n * Only the owner can set the allowed fee recipient.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param feeRecipient The new fee recipient.\n * @param allowed If the fee recipient is allowed.\n */\n function updateAllowedFeeRecipient(\n address seaDropImpl,\n address feeRecipient,\n bool allowed\n ) external virtual {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the allowed fee recipient.\n ISeaDrop(seaDropImpl).updateAllowedFeeRecipient(feeRecipient, allowed);\n }\n\n /**\n * @notice Update the server-side signers for this nft contract\n * on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param signer The signer to update.\n * @param signedMintValidationParams Minimum and maximum parameters to\n * enforce for signed mints.\n */\n function updateSignedMintValidationParams(\n address seaDropImpl,\n address signer,\n SignedMintValidationParams memory signedMintValidationParams\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the signer.\n ISeaDrop(seaDropImpl).updateSignedMintValidationParams(\n signer,\n signedMintValidationParams\n );\n }\n\n /**\n * @notice Update the allowed payers for this nft contract on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param payer The payer to update.\n * @param allowed Whether the payer is allowed.\n */\n function updatePayer(\n address seaDropImpl,\n address payer,\n bool allowed\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the payer.\n ISeaDrop(seaDropImpl).updatePayer(payer, allowed);\n }\n\n /**\n * @notice Returns a set of mint stats for the address.\n * This assists SeaDrop in enforcing maxSupply,\n * maxTotalMintableByWallet, and maxTokenSupplyForStage checks.\n *\n * @dev NOTE: Implementing contracts should always update these numbers\n * before transferring any tokens with _safeMint() to mitigate\n * consequences of malicious onERC721Received() hooks.\n *\n * @param minter The minter address.\n */\n function getMintStats(address minter)\n external\n view\n override\n returns (\n uint256 minterNumMinted,\n uint256 currentTotalSupply,\n uint256 maxSupply\n )\n {\n minterNumMinted = _numberMinted(minter);\n currentTotalSupply = _totalMinted();\n maxSupply = _maxSupply;\n }\n\n /**\n * @notice Returns whether the interface is supported.\n *\n * @param interfaceId The interface id to check against.\n */\n function supportsInterface(bytes4 interfaceId)\n public\n view\n virtual\n override(IERC165, ERC721ContractMetadataCloneable)\n returns (bool)\n {\n return\n interfaceId == type(INonFungibleSeaDropToken).interfaceId ||\n interfaceId == type(ISeaDropTokenContractMetadata).interfaceId ||\n // ERC721ContractMetadata returns supportsInterface true for\n // EIP-2981\n // ERC721A returns supportsInterface true for\n // ERC165, ERC721, ERC721Metadata\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom}\n * for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n * - The `operator` must be allowed.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool approved)\n public\n override\n onlyAllowedOperatorApproval(operator)\n {\n super.setApprovalForAll(operator, approved);\n }\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the\n * zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n * - The `operator` mut be allowed.\n *\n * Emits an {Approval} event.\n */\n function approve(address operator, uint256 tokenId)\n public\n override\n onlyAllowedOperatorApproval(operator)\n {\n super.approve(operator, tokenId);\n }\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n * - The operator must be allowed.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n * - The operator must be allowed.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId, data);\n }\n\n /**\n * @notice Configure multiple properties at a time.\n *\n * Note: The individual configure methods should be used\n * to unset or reset any properties to zero, as this method\n * will ignore zero-value properties in the config struct.\n *\n * @param config The configuration struct.\n */\n function multiConfigure(MultiConfigureStruct calldata config)\n external\n onlyOwner\n {\n if (config.maxSupply > 0) {\n this.setMaxSupply(config.maxSupply);\n }\n if (bytes(config.baseURI).length != 0) {\n this.setBaseURI(config.baseURI);\n }\n if (bytes(config.contractURI).length != 0) {\n this.setContractURI(config.contractURI);\n }\n if (\n _cast(config.publicDrop.startTime != 0) |\n _cast(config.publicDrop.endTime != 0) ==\n 1\n ) {\n this.updatePublicDrop(config.seaDropImpl, config.publicDrop);\n }\n if (bytes(config.dropURI).length != 0) {\n this.updateDropURI(config.seaDropImpl, config.dropURI);\n }\n if (config.allowListData.merkleRoot != bytes32(0)) {\n this.updateAllowList(config.seaDropImpl, config.allowListData);\n }\n if (config.creatorPayoutAddress != address(0)) {\n this.updateCreatorPayoutAddress(\n config.seaDropImpl,\n config.creatorPayoutAddress\n );\n }\n if (config.provenanceHash != bytes32(0)) {\n this.setProvenanceHash(config.provenanceHash);\n }\n if (config.allowedFeeRecipients.length > 0) {\n for (uint256 i = 0; i < config.allowedFeeRecipients.length; ) {\n this.updateAllowedFeeRecipient(\n config.seaDropImpl,\n config.allowedFeeRecipients[i],\n true\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.disallowedFeeRecipients.length > 0) {\n for (uint256 i = 0; i < config.disallowedFeeRecipients.length; ) {\n this.updateAllowedFeeRecipient(\n config.seaDropImpl,\n config.disallowedFeeRecipients[i],\n false\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.allowedPayers.length > 0) {\n for (uint256 i = 0; i < config.allowedPayers.length; ) {\n this.updatePayer(\n config.seaDropImpl,\n config.allowedPayers[i],\n true\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.disallowedPayers.length > 0) {\n for (uint256 i = 0; i < config.disallowedPayers.length; ) {\n this.updatePayer(\n config.seaDropImpl,\n config.disallowedPayers[i],\n false\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.tokenGatedDropStages.length > 0) {\n if (\n config.tokenGatedDropStages.length !=\n config.tokenGatedAllowedNftTokens.length\n ) {\n revert TokenGatedMismatch();\n }\n for (uint256 i = 0; i < config.tokenGatedDropStages.length; ) {\n this.updateTokenGatedDrop(\n config.seaDropImpl,\n config.tokenGatedAllowedNftTokens[i],\n config.tokenGatedDropStages[i]\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.disallowedTokenGatedAllowedNftTokens.length > 0) {\n for (\n uint256 i = 0;\n i < config.disallowedTokenGatedAllowedNftTokens.length;\n\n ) {\n TokenGatedDropStage memory emptyStage;\n this.updateTokenGatedDrop(\n config.seaDropImpl,\n config.disallowedTokenGatedAllowedNftTokens[i],\n emptyStage\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.signedMintValidationParams.length > 0) {\n if (\n config.signedMintValidationParams.length !=\n config.signers.length\n ) {\n revert SignersMismatch();\n }\n for (\n uint256 i = 0;\n i < config.signedMintValidationParams.length;\n\n ) {\n this.updateSignedMintValidationParams(\n config.seaDropImpl,\n config.signers[i],\n config.signedMintValidationParams[i]\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.disallowedSigners.length > 0) {\n for (uint256 i = 0; i < config.disallowedSigners.length; ) {\n SignedMintValidationParams memory emptyParams;\n this.updateSignedMintValidationParams(\n config.seaDropImpl,\n config.disallowedSigners[i],\n emptyParams\n );\n unchecked {\n ++i;\n }\n }\n }\n }\n}\n" }, "src/interfaces/INonFungibleSeaDropToken.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n ISeaDropTokenContractMetadata\n} from \"./ISeaDropTokenContractMetadata.sol\";\n\nimport {\n AllowListData,\n PublicDrop,\n TokenGatedDropStage,\n SignedMintValidationParams\n} from \"../lib/SeaDropStructs.sol\";\n\ninterface INonFungibleSeaDropToken is ISeaDropTokenContractMetadata {\n /**\n * @dev Revert with an error if a contract is not an allowed\n * SeaDrop address.\n */\n error OnlyAllowedSeaDrop();\n\n /**\n * @dev Emit an event when allowed SeaDrop contracts are updated.\n */\n event AllowedSeaDropUpdated(address[] allowedSeaDrop);\n\n /**\n * @notice Update the allowed SeaDrop contracts.\n * Only the owner or administrator can use this function.\n *\n * @param allowedSeaDrop The allowed SeaDrop addresses.\n */\n function updateAllowedSeaDrop(address[] calldata allowedSeaDrop) external;\n\n /**\n * @notice Mint tokens, restricted to the SeaDrop contract.\n *\n * @dev NOTE: If a token registers itself with multiple SeaDrop\n * contracts, the implementation of this function should guard\n * against reentrancy. If the implementing token uses\n * _safeMint(), or a feeRecipient with a malicious receive() hook\n * is specified, the token or fee recipients may be able to execute\n * another mint in the same transaction via a separate SeaDrop\n * contract.\n * This is dangerous if an implementing token does not correctly\n * update the minterNumMinted and currentTotalSupply values before\n * transferring minted tokens, as SeaDrop references these values\n * to enforce token limits on a per-wallet and per-stage basis.\n *\n * @param minter The address to mint to.\n * @param quantity The number of tokens to mint.\n */\n function mintSeaDrop(address minter, uint256 quantity) external;\n\n /**\n * @notice Returns a set of mint stats for the address.\n * This assists SeaDrop in enforcing maxSupply,\n * maxTotalMintableByWallet, and maxTokenSupplyForStage checks.\n *\n * @dev NOTE: Implementing contracts should always update these numbers\n * before transferring any tokens with _safeMint() to mitigate\n * consequences of malicious onERC721Received() hooks.\n *\n * @param minter The minter address.\n */\n function getMintStats(address minter)\n external\n view\n returns (\n uint256 minterNumMinted,\n uint256 currentTotalSupply,\n uint256 maxSupply\n );\n\n /**\n * @notice Update the public drop data for this nft contract on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * The administrator can only update `feeBps`.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param publicDrop The public drop data.\n */\n function updatePublicDrop(\n address seaDropImpl,\n PublicDrop calldata publicDrop\n ) external;\n\n /**\n * @notice Update the allow list data for this nft contract on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param allowListData The allow list data.\n */\n function updateAllowList(\n address seaDropImpl,\n AllowListData calldata allowListData\n ) external;\n\n /**\n * @notice Update the token gated drop stage data for this nft contract\n * on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * The administrator, when present, must first set `feeBps`.\n *\n * Note: If two INonFungibleSeaDropToken tokens are doing\n * simultaneous token gated drop promotions for each other,\n * they can be minted by the same actor until\n * `maxTokenSupplyForStage` is reached. Please ensure the\n * `allowedNftToken` is not running an active drop during the\n * `dropStage` time period.\n *\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param allowedNftToken The allowed nft token.\n * @param dropStage The token gated drop stage data.\n */\n function updateTokenGatedDrop(\n address seaDropImpl,\n address allowedNftToken,\n TokenGatedDropStage calldata dropStage\n ) external;\n\n /**\n * @notice Update the drop URI for this nft contract on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param dropURI The new drop URI.\n */\n function updateDropURI(address seaDropImpl, string calldata dropURI)\n external;\n\n /**\n * @notice Update the creator payout address for this nft contract on\n * SeaDrop.\n * Only the owner can set the creator payout address.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param payoutAddress The new payout address.\n */\n function updateCreatorPayoutAddress(\n address seaDropImpl,\n address payoutAddress\n ) external;\n\n /**\n * @notice Update the allowed fee recipient for this nft contract\n * on SeaDrop.\n * Only the administrator can set the allowed fee recipient.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param feeRecipient The new fee recipient.\n */\n function updateAllowedFeeRecipient(\n address seaDropImpl,\n address feeRecipient,\n bool allowed\n ) external;\n\n /**\n * @notice Update the server-side signers for this nft contract\n * on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param signer The signer to update.\n * @param signedMintValidationParams Minimum and maximum parameters\n * to enforce for signed mints.\n */\n function updateSignedMintValidationParams(\n address seaDropImpl,\n address signer,\n SignedMintValidationParams memory signedMintValidationParams\n ) external;\n\n /**\n * @notice Update the allowed payers for this nft contract on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param payer The payer to update.\n * @param allowed Whether the payer is allowed.\n */\n function updatePayer(\n address seaDropImpl,\n address payer,\n bool allowed\n ) external;\n}\n" }, "src/interfaces/ISeaDrop.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n AllowListData,\n MintParams,\n PublicDrop,\n TokenGatedDropStage,\n TokenGatedMintParams,\n SignedMintValidationParams\n} from \"../lib/SeaDropStructs.sol\";\n\nimport { SeaDropErrorsAndEvents } from \"../lib/SeaDropErrorsAndEvents.sol\";\n\ninterface ISeaDrop is SeaDropErrorsAndEvents {\n /**\n * @notice Mint a public drop.\n *\n * @param nftContract The nft contract to mint.\n * @param feeRecipient The fee recipient.\n * @param minterIfNotPayer The mint recipient if different than the payer.\n * @param quantity The number of tokens to mint.\n */\n function mintPublic(\n address nftContract,\n address feeRecipient,\n address minterIfNotPayer,\n uint256 quantity\n ) external payable;\n\n /**\n * @notice Mint from an allow list.\n *\n * @param nftContract The nft contract to mint.\n * @param feeRecipient The fee recipient.\n * @param minterIfNotPayer The mint recipient if different than the payer.\n * @param quantity The number of tokens to mint.\n * @param mintParams The mint parameters.\n * @param proof The proof for the leaf of the allow list.\n */\n function mintAllowList(\n address nftContract,\n address feeRecipient,\n address minterIfNotPayer,\n uint256 quantity,\n MintParams calldata mintParams,\n bytes32[] calldata proof\n ) external payable;\n\n /**\n * @notice Mint with a server-side signature.\n * Note that a signature can only be used once.\n *\n * @param nftContract The nft contract to mint.\n * @param feeRecipient The fee recipient.\n * @param minterIfNotPayer The mint recipient if different than the payer.\n * @param quantity The number of tokens to mint.\n * @param mintParams The mint parameters.\n * @param salt The sale for the signed mint.\n * @param signature The server-side signature, must be an allowed\n * signer.\n */\n function mintSigned(\n address nftContract,\n address feeRecipient,\n address minterIfNotPayer,\n uint256 quantity,\n MintParams calldata mintParams,\n uint256 salt,\n bytes calldata signature\n ) external payable;\n\n /**\n * @notice Mint as an allowed token holder.\n * This will mark the token id as redeemed and will revert if the\n * same token id is attempted to be redeemed twice.\n *\n * @param nftContract The nft contract to mint.\n * @param feeRecipient The fee recipient.\n * @param minterIfNotPayer The mint recipient if different than the payer.\n * @param mintParams The token gated mint params.\n */\n function mintAllowedTokenHolder(\n address nftContract,\n address feeRecipient,\n address minterIfNotPayer,\n TokenGatedMintParams calldata mintParams\n ) external payable;\n\n /**\n * @notice Emits an event to notify update of the drop URI.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param dropURI The new drop URI.\n */\n function updateDropURI(string calldata dropURI) external;\n\n /**\n * @notice Updates the public drop data for the nft contract\n * and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param publicDrop The public drop data.\n */\n function updatePublicDrop(PublicDrop calldata publicDrop) external;\n\n /**\n * @notice Updates the allow list merkle root for the nft contract\n * and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param allowListData The allow list data.\n */\n function updateAllowList(AllowListData calldata allowListData) external;\n\n /**\n * @notice Updates the token gated drop stage for the nft contract\n * and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * Note: If two INonFungibleSeaDropToken tokens are doing\n * simultaneous token gated drop promotions for each other,\n * they can be minted by the same actor until\n * `maxTokenSupplyForStage` is reached. Please ensure the\n * `allowedNftToken` is not running an active drop during\n * the `dropStage` time period.\n *\n * @param allowedNftToken The token gated nft token.\n * @param dropStage The token gated drop stage data.\n */\n function updateTokenGatedDrop(\n address allowedNftToken,\n TokenGatedDropStage calldata dropStage\n ) external;\n\n /**\n * @notice Updates the creator payout address and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param payoutAddress The creator payout address.\n */\n function updateCreatorPayoutAddress(address payoutAddress) external;\n\n /**\n * @notice Updates the allowed fee recipient and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param feeRecipient The fee recipient.\n * @param allowed If the fee recipient is allowed.\n */\n function updateAllowedFeeRecipient(address feeRecipient, bool allowed)\n external;\n\n /**\n * @notice Updates the allowed server-side signers and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param signer The signer to update.\n * @param signedMintValidationParams Minimum and maximum parameters\n * to enforce for signed mints.\n */\n function updateSignedMintValidationParams(\n address signer,\n SignedMintValidationParams calldata signedMintValidationParams\n ) external;\n\n /**\n * @notice Updates the allowed payer and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param payer The payer to add or remove.\n * @param allowed Whether to add or remove the payer.\n */\n function updatePayer(address payer, bool allowed) external;\n\n /**\n * @notice Returns the public drop data for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getPublicDrop(address nftContract)\n external\n view\n returns (PublicDrop memory);\n\n /**\n * @notice Returns the creator payout address for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getCreatorPayoutAddress(address nftContract)\n external\n view\n returns (address);\n\n /**\n * @notice Returns the allow list merkle root for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getAllowListMerkleRoot(address nftContract)\n external\n view\n returns (bytes32);\n\n /**\n * @notice Returns if the specified fee recipient is allowed\n * for the nft contract.\n *\n * @param nftContract The nft contract.\n * @param feeRecipient The fee recipient.\n */\n function getFeeRecipientIsAllowed(address nftContract, address feeRecipient)\n external\n view\n returns (bool);\n\n /**\n * @notice Returns an enumeration of allowed fee recipients for an\n * nft contract when fee recipients are enforced\n *\n * @param nftContract The nft contract.\n */\n function getAllowedFeeRecipients(address nftContract)\n external\n view\n returns (address[] memory);\n\n /**\n * @notice Returns the server-side signers for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getSigners(address nftContract)\n external\n view\n returns (address[] memory);\n\n /**\n * @notice Returns the struct of SignedMintValidationParams for a signer.\n *\n * @param nftContract The nft contract.\n * @param signer The signer.\n */\n function getSignedMintValidationParams(address nftContract, address signer)\n external\n view\n returns (SignedMintValidationParams memory);\n\n /**\n * @notice Returns the payers for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getPayers(address nftContract)\n external\n view\n returns (address[] memory);\n\n /**\n * @notice Returns if the specified payer is allowed\n * for the nft contract.\n *\n * @param nftContract The nft contract.\n * @param payer The payer.\n */\n function getPayerIsAllowed(address nftContract, address payer)\n external\n view\n returns (bool);\n\n /**\n * @notice Returns the allowed token gated drop tokens for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getTokenGatedAllowedTokens(address nftContract)\n external\n view\n returns (address[] memory);\n\n /**\n * @notice Returns the token gated drop data for the nft contract\n * and token gated nft.\n *\n * @param nftContract The nft contract.\n * @param allowedNftToken The token gated nft token.\n */\n function getTokenGatedDrop(address nftContract, address allowedNftToken)\n external\n view\n returns (TokenGatedDropStage memory);\n\n /**\n * @notice Returns whether the token id for a token gated drop has been\n * redeemed.\n *\n * @param nftContract The nft contract.\n * @param allowedNftToken The token gated nft token.\n * @param allowedNftTokenId The token gated nft token id to check.\n */\n function getAllowedNftTokenIdIsRedeemed(\n address nftContract,\n address allowedNftToken,\n uint256 allowedNftTokenId\n ) external view returns (bool);\n}\n" }, "src/interfaces/ISeaDropTokenContractMetadata.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport { IERC2981 } from \"openzeppelin-contracts/interfaces/IERC2981.sol\";\n\ninterface ISeaDropTokenContractMetadata is IERC2981 {\n /**\n * @notice Throw if the max supply exceeds uint64, a limit\n * due to the storage of bit-packed variables in ERC721A.\n */\n error CannotExceedMaxSupplyOfUint64(uint256 newMaxSupply);\n\n /**\n * @dev Revert with an error when attempting to set the provenance\n * hash after the mint has started.\n */\n error ProvenanceHashCannotBeSetAfterMintStarted();\n\n /**\n * @dev Revert if the royalty basis points is greater than 10_000.\n */\n error InvalidRoyaltyBasisPoints(uint256 basisPoints);\n\n /**\n * @dev Revert if the royalty address is being set to the zero address.\n */\n error RoyaltyAddressCannotBeZeroAddress();\n\n /**\n * @dev Emit an event for token metadata reveals/updates,\n * according to EIP-4906.\n *\n * @param _fromTokenId The start token id.\n * @param _toTokenId The end token id.\n */\n event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);\n\n /**\n * @dev Emit an event when the URI for the collection-level metadata\n * is updated.\n */\n event ContractURIUpdated(string newContractURI);\n\n /**\n * @dev Emit an event when the max token supply is updated.\n */\n event MaxSupplyUpdated(uint256 newMaxSupply);\n\n /**\n * @dev Emit an event with the previous and new provenance hash after\n * being updated.\n */\n event ProvenanceHashUpdated(bytes32 previousHash, bytes32 newHash);\n\n /**\n * @dev Emit an event when the royalties info is updated.\n */\n event RoyaltyInfoUpdated(address receiver, uint256 bps);\n\n /**\n * @notice A struct defining royalty info for the contract.\n */\n struct RoyaltyInfo {\n address royaltyAddress;\n uint96 royaltyBps;\n }\n\n /**\n * @notice Sets the base URI for the token metadata and emits an event.\n *\n * @param tokenURI The new base URI to set.\n */\n function setBaseURI(string calldata tokenURI) external;\n\n /**\n * @notice Sets the contract URI for contract metadata.\n *\n * @param newContractURI The new contract URI.\n */\n function setContractURI(string calldata newContractURI) external;\n\n /**\n * @notice Sets the max supply and emits an event.\n *\n * @param newMaxSupply The new max supply to set.\n */\n function setMaxSupply(uint256 newMaxSupply) external;\n\n /**\n * @notice Sets the provenance hash and emits an event.\n *\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it has not been\n * modified after mint started.\n *\n * This function will revert after the first item has been minted.\n *\n * @param newProvenanceHash The new provenance hash to set.\n */\n function setProvenanceHash(bytes32 newProvenanceHash) external;\n\n /**\n * @notice Sets the address and basis points for royalties.\n *\n * @param newInfo The struct to configure royalties.\n */\n function setRoyaltyInfo(RoyaltyInfo calldata newInfo) external;\n\n /**\n * @notice Returns the base URI for token metadata.\n */\n function baseURI() external view returns (string memory);\n\n /**\n * @notice Returns the contract URI.\n */\n function contractURI() external view returns (string memory);\n\n /**\n * @notice Returns the max token supply.\n */\n function maxSupply() external view returns (uint256);\n\n /**\n * @notice Returns the provenance hash.\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it is unmodified\n * after mint has started.\n */\n function provenanceHash() external view returns (bytes32);\n\n /**\n * @notice Returns the address that receives royalties.\n */\n function royaltyAddress() external view returns (address);\n\n /**\n * @notice Returns the royalty basis points out of 10_000.\n */\n function royaltyBasisPoints() external view returns (uint256);\n}\n" }, "src/lib/ERC721SeaDropStructsErrorsAndEvents.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n AllowListData,\n PublicDrop,\n SignedMintValidationParams,\n TokenGatedDropStage\n} from \"./SeaDropStructs.sol\";\n\ninterface ERC721SeaDropStructsErrorsAndEvents {\n /**\n * @notice Revert with an error if mint exceeds the max supply.\n */\n error MintQuantityExceedsMaxSupply(uint256 total, uint256 maxSupply);\n\n /**\n * @notice Revert with an error if the number of token gated \n * allowedNftTokens doesn't match the length of supplied\n * drop stages.\n */\n error TokenGatedMismatch();\n\n /**\n * @notice Revert with an error if the number of signers doesn't match\n * the length of supplied signedMintValidationParams\n */\n error SignersMismatch();\n\n /**\n * @notice An event to signify that a SeaDrop token contract was deployed.\n */\n event SeaDropTokenDeployed();\n\n /**\n * @notice A struct to configure multiple contract options at a time.\n */\n struct MultiConfigureStruct {\n uint256 maxSupply;\n string baseURI;\n string contractURI;\n address seaDropImpl;\n PublicDrop publicDrop;\n string dropURI;\n AllowListData allowListData;\n address creatorPayoutAddress;\n bytes32 provenanceHash;\n\n address[] allowedFeeRecipients;\n address[] disallowedFeeRecipients;\n\n address[] allowedPayers;\n address[] disallowedPayers;\n\n // Token-gated\n address[] tokenGatedAllowedNftTokens;\n TokenGatedDropStage[] tokenGatedDropStages;\n address[] disallowedTokenGatedAllowedNftTokens;\n\n // Server-signed\n address[] signers;\n SignedMintValidationParams[] signedMintValidationParams;\n address[] disallowedSigners;\n }\n}" }, "src/lib/SeaDropErrorsAndEvents.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport { PublicDrop, TokenGatedDropStage, SignedMintValidationParams } from \"./SeaDropStructs.sol\";\n\ninterface SeaDropErrorsAndEvents {\n /**\n * @dev Revert with an error if the drop stage is not active.\n */\n error NotActive(\n uint256 currentTimestamp,\n uint256 startTimestamp,\n uint256 endTimestamp\n );\n\n /**\n * @dev Revert with an error if the mint quantity is zero.\n */\n error MintQuantityCannotBeZero();\n\n /**\n * @dev Revert with an error if the mint quantity exceeds the max allowed\n * to be minted per wallet.\n */\n error MintQuantityExceedsMaxMintedPerWallet(uint256 total, uint256 allowed);\n\n /**\n * @dev Revert with an error if the mint quantity exceeds the max token\n * supply.\n */\n error MintQuantityExceedsMaxSupply(uint256 total, uint256 maxSupply);\n\n /**\n * @dev Revert with an error if the mint quantity exceeds the max token\n * supply for the stage.\n * Note: The `maxTokenSupplyForStage` for public mint is\n * always `type(uint).max`.\n */\n error MintQuantityExceedsMaxTokenSupplyForStage(\n uint256 total, \n uint256 maxTokenSupplyForStage\n );\n \n /**\n * @dev Revert if the fee recipient is the zero address.\n */\n error FeeRecipientCannotBeZeroAddress();\n\n /**\n * @dev Revert if the fee recipient is not already included.\n */\n error FeeRecipientNotPresent();\n\n /**\n * @dev Revert if the fee basis points is greater than 10_000.\n */\n error InvalidFeeBps(uint256 feeBps);\n\n /**\n * @dev Revert if the fee recipient is already included.\n */\n error DuplicateFeeRecipient();\n\n /**\n * @dev Revert if the fee recipient is restricted and not allowed.\n */\n error FeeRecipientNotAllowed();\n\n /**\n * @dev Revert if the creator payout address is the zero address.\n */\n error CreatorPayoutAddressCannotBeZeroAddress();\n\n /**\n * @dev Revert with an error if the received payment is incorrect.\n */\n error IncorrectPayment(uint256 got, uint256 want);\n\n /**\n * @dev Revert with an error if the allow list proof is invalid.\n */\n error InvalidProof();\n\n /**\n * @dev Revert if a supplied signer address is the zero address.\n */\n error SignerCannotBeZeroAddress();\n\n /**\n * @dev Revert with an error if signer's signature is invalid.\n */\n error InvalidSignature(address recoveredSigner);\n\n /**\n * @dev Revert with an error if a signer is not included in\n * the enumeration when removing.\n */\n error SignerNotPresent();\n\n /**\n * @dev Revert with an error if a payer is not included in\n * the enumeration when removing.\n */\n error PayerNotPresent();\n\n /**\n * @dev Revert with an error if a payer is already included in mapping\n * when adding.\n * Note: only applies when adding a single payer, as duplicates in\n * enumeration can be removed with updatePayer.\n */\n error DuplicatePayer();\n\n /**\n * @dev Revert with an error if the payer is not allowed. The minter must\n * pay for their own mint.\n */\n error PayerNotAllowed();\n\n /**\n * @dev Revert if a supplied payer address is the zero address.\n */\n error PayerCannotBeZeroAddress();\n\n /**\n * @dev Revert with an error if the sender does not\n * match the INonFungibleSeaDropToken interface.\n */\n error OnlyINonFungibleSeaDropToken(address sender);\n\n /**\n * @dev Revert with an error if the sender of a token gated supplied\n * drop stage redeem is not the owner of the token.\n */\n error TokenGatedNotTokenOwner(\n address nftContract,\n address allowedNftToken,\n uint256 allowedNftTokenId\n );\n\n /**\n * @dev Revert with an error if the token id has already been used to\n * redeem a token gated drop stage.\n */\n error TokenGatedTokenIdAlreadyRedeemed(\n address nftContract,\n address allowedNftToken,\n uint256 allowedNftTokenId\n );\n\n /**\n * @dev Revert with an error if an empty TokenGatedDropStage is provided\n * for an already-empty TokenGatedDropStage.\n */\n error TokenGatedDropStageNotPresent();\n\n /**\n * @dev Revert with an error if an allowedNftToken is set to\n * the zero address.\n */\n error TokenGatedDropAllowedNftTokenCannotBeZeroAddress();\n\n /**\n * @dev Revert with an error if an allowedNftToken is set to\n * the drop token itself.\n */\n error TokenGatedDropAllowedNftTokenCannotBeDropToken();\n\n\n /**\n * @dev Revert with an error if supplied signed mint price is less than\n * the minimum specified.\n */\n error InvalidSignedMintPrice(uint256 got, uint256 minimum);\n\n /**\n * @dev Revert with an error if supplied signed maxTotalMintableByWallet\n * is greater than the maximum specified.\n */\n error InvalidSignedMaxTotalMintableByWallet(uint256 got, uint256 maximum);\n\n /**\n * @dev Revert with an error if supplied signed start time is less than\n * the minimum specified.\n */\n error InvalidSignedStartTime(uint256 got, uint256 minimum);\n \n /**\n * @dev Revert with an error if supplied signed end time is greater than\n * the maximum specified.\n */\n error InvalidSignedEndTime(uint256 got, uint256 maximum);\n\n /**\n * @dev Revert with an error if supplied signed maxTokenSupplyForStage\n * is greater than the maximum specified.\n */\n error InvalidSignedMaxTokenSupplyForStage(uint256 got, uint256 maximum);\n \n /**\n * @dev Revert with an error if supplied signed feeBps is greater than\n * the maximum specified, or less than the minimum.\n */\n error InvalidSignedFeeBps(uint256 got, uint256 minimumOrMaximum);\n\n /**\n * @dev Revert with an error if signed mint did not specify to restrict\n * fee recipients.\n */\n error SignedMintsMustRestrictFeeRecipients();\n\n /**\n * @dev Revert with an error if a signature for a signed mint has already\n * been used.\n */\n error SignatureAlreadyUsed();\n\n /**\n * @dev An event with details of a SeaDrop mint, for analytical purposes.\n * \n * @param nftContract The nft contract.\n * @param minter The mint recipient.\n * @param feeRecipient The fee recipient.\n * @param payer The address who payed for the tx.\n * @param quantityMinted The number of tokens minted.\n * @param unitMintPrice The amount paid for each token.\n * @param feeBps The fee out of 10_000 basis points collected.\n * @param dropStageIndex The drop stage index. Items minted\n * through mintPublic() have\n * dropStageIndex of 0.\n */\n event SeaDropMint(\n address indexed nftContract,\n address indexed minter,\n address indexed feeRecipient,\n address payer,\n uint256 quantityMinted,\n uint256 unitMintPrice,\n uint256 feeBps,\n uint256 dropStageIndex\n );\n\n /**\n * @dev An event with updated public drop data for an nft contract.\n */\n event PublicDropUpdated(\n address indexed nftContract,\n PublicDrop publicDrop\n );\n\n /**\n * @dev An event with updated token gated drop stage data\n * for an nft contract.\n */\n event TokenGatedDropStageUpdated(\n address indexed nftContract,\n address indexed allowedNftToken,\n TokenGatedDropStage dropStage\n );\n\n /**\n * @dev An event with updated allow list data for an nft contract.\n * \n * @param nftContract The nft contract.\n * @param previousMerkleRoot The previous allow list merkle root.\n * @param newMerkleRoot The new allow list merkle root.\n * @param publicKeyURI If the allow list is encrypted, the public key\n * URIs that can decrypt the list.\n * Empty if unencrypted.\n * @param allowListURI The URI for the allow list.\n */\n event AllowListUpdated(\n address indexed nftContract,\n bytes32 indexed previousMerkleRoot,\n bytes32 indexed newMerkleRoot,\n string[] publicKeyURI,\n string allowListURI\n );\n\n /**\n * @dev An event with updated drop URI for an nft contract.\n */\n event DropURIUpdated(address indexed nftContract, string newDropURI);\n\n /**\n * @dev An event with the updated creator payout address for an nft\n * contract.\n */\n event CreatorPayoutAddressUpdated(\n address indexed nftContract,\n address indexed newPayoutAddress\n );\n\n /**\n * @dev An event with the updated allowed fee recipient for an nft\n * contract.\n */\n event AllowedFeeRecipientUpdated(\n address indexed nftContract,\n address indexed feeRecipient,\n bool indexed allowed\n );\n\n /**\n * @dev An event with the updated validation parameters for server-side\n * signers.\n */\n event SignedMintValidationParamsUpdated(\n address indexed nftContract,\n address indexed signer,\n SignedMintValidationParams signedMintValidationParams\n ); \n\n /**\n * @dev An event with the updated payer for an nft contract.\n */\n event PayerUpdated(\n address indexed nftContract,\n address indexed payer,\n bool indexed allowed\n );\n}\n" }, "src/lib/SeaDropStructs.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\n/**\n * @notice A struct defining public drop data.\n * Designed to fit efficiently in one storage slot.\n * \n * @param mintPrice The mint price per token. (Up to 1.2m\n * of native token, e.g. ETH, MATIC)\n * @param startTime The start time, ensure this is not zero.\n * @param endTIme The end time, ensure this is not zero.\n * @param maxTotalMintableByWallet Maximum total number of mints a user is\n * allowed. (The limit for this field is\n * 2^16 - 1)\n * @param feeBps Fee out of 10_000 basis points to be\n * collected.\n * @param restrictFeeRecipients If false, allow any fee recipient;\n * if true, check fee recipient is allowed.\n */\nstruct PublicDrop {\n uint80 mintPrice; // 80/256 bits\n uint48 startTime; // 128/256 bits\n uint48 endTime; // 176/256 bits\n uint16 maxTotalMintableByWallet; // 224/256 bits\n uint16 feeBps; // 240/256 bits\n bool restrictFeeRecipients; // 248/256 bits\n}\n\n/**\n * @notice A struct defining token gated drop stage data.\n * Designed to fit efficiently in one storage slot.\n * \n * @param mintPrice The mint price per token. (Up to 1.2m \n * of native token, e.g.: ETH, MATIC)\n * @param maxTotalMintableByWallet Maximum total number of mints a user is\n * allowed. (The limit for this field is\n * 2^16 - 1)\n * @param startTime The start time, ensure this is not zero.\n * @param endTime The end time, ensure this is not zero.\n * @param dropStageIndex The drop stage index to emit with the event\n * for analytical purposes. This should be \n * non-zero since the public mint emits\n * with index zero.\n * @param maxTokenSupplyForStage The limit of token supply this stage can\n * mint within. (The limit for this field is\n * 2^16 - 1)\n * @param feeBps Fee out of 10_000 basis points to be\n * collected.\n * @param restrictFeeRecipients If false, allow any fee recipient;\n * if true, check fee recipient is allowed.\n */\nstruct TokenGatedDropStage {\n uint80 mintPrice; // 80/256 bits\n uint16 maxTotalMintableByWallet; // 96/256 bits\n uint48 startTime; // 144/256 bits\n uint48 endTime; // 192/256 bits\n uint8 dropStageIndex; // non-zero. 200/256 bits\n uint32 maxTokenSupplyForStage; // 232/256 bits\n uint16 feeBps; // 248/256 bits\n bool restrictFeeRecipients; // 256/256 bits\n}\n\n/**\n * @notice A struct defining mint params for an allow list.\n * An allow list leaf will be composed of `msg.sender` and\n * the following params.\n * \n * Note: Since feeBps is encoded in the leaf, backend should ensure\n * that feeBps is acceptable before generating a proof.\n * \n * @param mintPrice The mint price per token.\n * @param maxTotalMintableByWallet Maximum total number of mints a user is\n * allowed.\n * @param startTime The start time, ensure this is not zero.\n * @param endTime The end time, ensure this is not zero.\n * @param dropStageIndex The drop stage index to emit with the event\n * for analytical purposes. This should be\n * non-zero since the public mint emits with\n * index zero.\n * @param maxTokenSupplyForStage The limit of token supply this stage can\n * mint within.\n * @param feeBps Fee out of 10_000 basis points to be\n * collected.\n * @param restrictFeeRecipients If false, allow any fee recipient;\n * if true, check fee recipient is allowed.\n */\nstruct MintParams {\n uint256 mintPrice; \n uint256 maxTotalMintableByWallet;\n uint256 startTime;\n uint256 endTime;\n uint256 dropStageIndex; // non-zero\n uint256 maxTokenSupplyForStage;\n uint256 feeBps;\n bool restrictFeeRecipients;\n}\n\n/**\n * @notice A struct defining token gated mint params.\n * \n * @param allowedNftToken The allowed nft token contract address.\n * @param allowedNftTokenIds The token ids to redeem.\n */\nstruct TokenGatedMintParams {\n address allowedNftToken;\n uint256[] allowedNftTokenIds;\n}\n\n/**\n * @notice A struct defining allow list data (for minting an allow list).\n * \n * @param merkleRoot The merkle root for the allow list.\n * @param publicKeyURIs If the allowListURI is encrypted, a list of URIs\n * pointing to the public keys. Empty if unencrypted.\n * @param allowListURI The URI for the allow list.\n */\nstruct AllowListData {\n bytes32 merkleRoot;\n string[] publicKeyURIs;\n string allowListURI;\n}\n\n/**\n * @notice A struct defining minimum and maximum parameters to validate for \n * signed mints, to minimize negative effects of a compromised signer.\n *\n * @param minMintPrice The minimum mint price allowed.\n * @param maxMaxTotalMintableByWallet The maximum total number of mints allowed\n * by a wallet.\n * @param minStartTime The minimum start time allowed.\n * @param maxEndTime The maximum end time allowed.\n * @param maxMaxTokenSupplyForStage The maximum token supply allowed.\n * @param minFeeBps The minimum fee allowed.\n * @param maxFeeBps The maximum fee allowed.\n */\nstruct SignedMintValidationParams {\n uint80 minMintPrice; // 80/256 bits\n uint24 maxMaxTotalMintableByWallet; // 104/256 bits\n uint40 minStartTime; // 144/256 bits\n uint40 maxEndTime; // 184/256 bits\n uint40 maxMaxTokenSupplyForStage; // 224/256 bits\n uint16 minFeeBps; // 240/256 bits\n uint16 maxFeeBps; // 256/256 bits\n}" } }, "settings": { "remappings": [ "ERC721A-Upgradeable/=lib/ERC721A-Upgradeable/contracts/", "ERC721A/=lib/ERC721A/contracts/", "create2-helpers/=lib/create2-helpers/src/", "create2-scripts/=lib/create2-helpers/script/", "ds-test/=lib/ds-test/src/", "erc4626-tests/=lib/operator-filter-registry/lib/openzeppelin-contracts/lib/erc4626-tests/", "forge-std/=lib/forge-std/src/", "murky/=lib/murky/src/", "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/", "openzeppelin-contracts/=lib/openzeppelin-contracts/contracts/", "operator-filter-registry/=lib/operator-filter-registry/src/", "seadrop/=src/", "solmate/=lib/solmate/src/", "utility-contracts/=lib/utility-contracts/src/" ], "optimizer": { "enabled": true, "runs": 1000000 }, "metadata": { "bytecodeHash": "none" }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "london", "libraries": {} } }}
1
19,501,076
692c0bb321842da88a9ee337c8af2c70b03763ec285270565ffefb6d8a5aa38e
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3d602d80600a3d3981f3363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3
363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3
pragma solidity 0.7.5; /* The MIT License (MIT) Copyright (c) 2018 Murray Software, LLC. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ //solhint-disable max-line-length //solhint-disable no-inline-assembly contract CloneFactory { function createClone(address target, bytes32 salt) internal returns (address payable result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the clone contract data let clone := mload(0x40) // The bytecode block below is responsible for contract initialization // during deployment, it is worth noting the proxied contract constructor will not be called during // the cloning procedure and that is why an initialization function needs to be called after the // clone is created mstore( clone, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000 ) // This stores the address location of the implementation contract // so that the proxy knows where to delegate call logic to mstore(add(clone, 0x14), targetBytes) // The bytecode block is the actual code that is deployed for each clone created. // It forwards all calls to the already deployed implementation via a delegatecall mstore( add(clone, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // deploy the contract using the CREATE2 opcode // this deploys the minimal proxy defined above, which will proxy all // calls to use the logic defined in the implementation contract `target` result := create2(0, clone, 0x37, salt) } } function isClone(address target, address query) internal view returns (bool result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the comparison clone let clone := mload(0x40) // The next three lines store the expected bytecode for a miniml proxy // that targets `target` as its implementation contract mstore( clone, 0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000 ) mstore(add(clone, 0xa), targetBytes) mstore( add(clone, 0x1e), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // the next two lines store the bytecode of the contract that we are checking in memory let other := add(clone, 0x40) extcodecopy(query, other, 0, 0x2d) // Check if the expected bytecode equals the actual bytecode and return the result result := and( eq(mload(clone), mload(other)), eq(mload(add(clone, 0xd)), mload(add(other, 0xd))) ) } } } /** * Contract that exposes the needed erc20 token functions */ abstract contract ERC20Interface { // Send _value amount of tokens to address _to function transfer(address _to, uint256 _value) public virtual returns (bool success); // Get the account balance of another account with address _owner function balanceOf(address _owner) public virtual view returns (uint256 balance); } // helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false library TransferHelper { function safeApprove( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('approve(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeApprove: approve failed' ); } function safeTransfer( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transfer(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeTransfer: transfer failed' ); } function safeTransferFrom( address token, address from, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transferFrom(address,address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::transferFrom: transferFrom failed' ); } function safeTransferETH(address to, uint256 value) internal { (bool success, ) = to.call{value: value}(new bytes(0)); require(success, 'TransferHelper::safeTransferETH: ETH transfer failed'); } } /** * Contract that will forward any incoming Ether to the creator of the contract * */ contract Forwarder { // Address to which any funds sent to this contract will be forwarded address public parentAddress; event ForwarderDeposited(address from, uint256 value, bytes data); /** * Initialize the contract, and sets the destination address to that of the creator */ function init(address _parentAddress) external onlyUninitialized { parentAddress = _parentAddress; uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); // NOTE: since we are forwarding on initialization, // we don't have the context of the original sender. // We still emit an event about the forwarding but set // the sender to the forwarder itself emit ForwarderDeposited(address(this), value, msg.data); } /** * Modifier that will execute internal code block only if the sender is the parent address */ modifier onlyParent { require(msg.sender == parentAddress, 'Only Parent'); _; } /** * Modifier that will execute internal code block only if the contract has not been initialized yet */ modifier onlyUninitialized { require(parentAddress == address(0x0), 'Already initialized'); _; } /** * Default function; Gets called when data is sent but does not match any other function */ fallback() external payable { flush(); } /** * Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address */ receive() external payable { flush(); } /** * Execute a token transfer of the full balance from the forwarder token to the parent address * @param tokenContractAddress the address of the erc20 token contract */ function flushTokens(address tokenContractAddress) external onlyParent { ERC20Interface instance = ERC20Interface(tokenContractAddress); address forwarderAddress = address(this); uint256 forwarderBalance = instance.balanceOf(forwarderAddress); if (forwarderBalance == 0) { return; } TransferHelper.safeTransfer( tokenContractAddress, parentAddress, forwarderBalance ); } /** * Flush the entire balance of the contract to the parent address. */ function flush() public { uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); emit ForwarderDeposited(msg.sender, value, msg.data); } } contract ForwarderFactory is CloneFactory { address public implementationAddress; event ForwarderCreated(address newForwarderAddress, address parentAddress); constructor(address _implementationAddress) { implementationAddress = _implementationAddress; } function createForwarder(address parent, bytes32 salt) external { // include the signers in the salt so any contract deployed to a given address must have the same signers bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt)); address payable clone = createClone(implementationAddress, finalSalt); Forwarder(clone).init(parent); emit ForwarderCreated(clone, parent); } }
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{{ "language": "Solidity", "sources": { "contracts/Forwarder.sol": { "content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity 0.8.10;\nimport '@openzeppelin/contracts/token/ERC1155/IERC1155.sol';\nimport '@openzeppelin/contracts/token/ERC721/IERC721.sol';\nimport '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';\nimport '@openzeppelin/contracts/token/ERC1155/utils/ERC1155Receiver.sol';\nimport './ERC20Interface.sol';\nimport './TransferHelper.sol';\nimport './IForwarder.sol';\n\n/**\n * Contract that will forward any incoming Ether to the creator of the contract\n *\n */\ncontract Forwarder is IERC721Receiver, ERC1155Receiver, IForwarder {\n // Address to which any funds sent to this contract will be forwarded\n address public parentAddress;\n bool public autoFlush721 = true;\n bool public autoFlush1155 = true;\n\n event ForwarderDeposited(address from, uint256 value, bytes data);\n\n /**\n * Initialize the contract, and sets the destination address to that of the creator\n */\n function init(\n address _parentAddress,\n bool _autoFlush721,\n bool _autoFlush1155\n ) external onlyUninitialized {\n parentAddress = _parentAddress;\n uint256 value = address(this).balance;\n\n // set whether we want to automatically flush erc721/erc1155 tokens or not\n autoFlush721 = _autoFlush721;\n autoFlush1155 = _autoFlush1155;\n\n if (value == 0) {\n return;\n }\n\n (bool success, ) = parentAddress.call{ value: value }('');\n require(success, 'Flush failed');\n\n // NOTE: since we are forwarding on initialization,\n // we don't have the context of the original sender.\n // We still emit an event about the forwarding but set\n // the sender to the forwarder itself\n emit ForwarderDeposited(address(this), value, msg.data);\n }\n\n /**\n * Modifier that will execute internal code block only if the sender is the parent address\n */\n modifier onlyParent {\n require(msg.sender == parentAddress, 'Only Parent');\n _;\n }\n\n /**\n * Modifier that will execute internal code block only if the contract has not been initialized yet\n */\n modifier onlyUninitialized {\n require(parentAddress == address(0x0), 'Already initialized');\n _;\n }\n\n /**\n * Default function; Gets called when data is sent but does not match any other function\n */\n fallback() external payable {\n flush();\n }\n\n /**\n * Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address\n */\n receive() external payable {\n flush();\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function setAutoFlush721(bool autoFlush)\n external\n virtual\n override\n onlyParent\n {\n autoFlush721 = autoFlush;\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function setAutoFlush1155(bool autoFlush)\n external\n virtual\n override\n onlyParent\n {\n autoFlush1155 = autoFlush;\n }\n\n /**\n * ERC721 standard callback function for when a ERC721 is transfered. The forwarder will send the nft\n * to the base wallet once the nft contract invokes this method after transfering the nft.\n *\n * @param _operator The address which called `safeTransferFrom` function\n * @param _from The address of the sender\n * @param _tokenId The token id of the nft\n * @param data Additional data with no specified format, sent in call to `_to`\n */\n function onERC721Received(\n address _operator,\n address _from,\n uint256 _tokenId,\n bytes memory data\n ) external virtual override returns (bytes4) {\n if (autoFlush721) {\n IERC721 instance = IERC721(msg.sender);\n require(\n instance.supportsInterface(type(IERC721).interfaceId),\n 'The caller does not support the ERC721 interface'\n );\n // this won't work for ERC721 re-entrancy\n instance.safeTransferFrom(address(this), parentAddress, _tokenId, data);\n }\n\n return this.onERC721Received.selector;\n }\n\n function callFromParent(\n address target,\n uint256 value,\n bytes calldata data\n ) external onlyParent returns (bytes memory) {\n (bool success, bytes memory returnedData) = target.call{ value: value }(\n data\n );\n require(success, 'Parent call execution failed');\n\n return returnedData;\n }\n\n /**\n * @inheritdoc IERC1155Receiver\n */\n function onERC1155Received(\n address _operator,\n address _from,\n uint256 id,\n uint256 value,\n bytes calldata data\n ) external virtual override returns (bytes4) {\n IERC1155 instance = IERC1155(msg.sender);\n require(\n instance.supportsInterface(type(IERC1155).interfaceId),\n 'The caller does not support the IERC1155 interface'\n );\n\n if (autoFlush1155) {\n instance.safeTransferFrom(address(this), parentAddress, id, value, data);\n }\n\n return this.onERC1155Received.selector;\n }\n\n /**\n * @inheritdoc IERC1155Receiver\n */\n function onERC1155BatchReceived(\n address _operator,\n address _from,\n uint256[] calldata ids,\n uint256[] calldata values,\n bytes calldata data\n ) external virtual override returns (bytes4) {\n IERC1155 instance = IERC1155(msg.sender);\n require(\n instance.supportsInterface(type(IERC1155).interfaceId),\n 'The caller does not support the IERC1155 interface'\n );\n\n if (autoFlush1155) {\n instance.safeBatchTransferFrom(\n address(this),\n parentAddress,\n ids,\n values,\n data\n );\n }\n\n return this.onERC1155BatchReceived.selector;\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function flushTokens(address tokenContractAddress)\n external\n virtual\n override\n onlyParent\n {\n ERC20Interface instance = ERC20Interface(tokenContractAddress);\n address forwarderAddress = address(this);\n uint256 forwarderBalance = instance.balanceOf(forwarderAddress);\n if (forwarderBalance == 0) {\n return;\n }\n\n TransferHelper.safeTransfer(\n tokenContractAddress,\n parentAddress,\n forwarderBalance\n );\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function flushERC721Token(address tokenContractAddress, uint256 tokenId)\n external\n virtual\n override\n onlyParent\n {\n IERC721 instance = IERC721(tokenContractAddress);\n require(\n instance.supportsInterface(type(IERC721).interfaceId),\n 'The tokenContractAddress does not support the ERC721 interface'\n );\n\n address ownerAddress = instance.ownerOf(tokenId);\n instance.transferFrom(ownerAddress, parentAddress, tokenId);\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function flushERC1155Tokens(address tokenContractAddress, uint256 tokenId)\n external\n virtual\n override\n onlyParent\n {\n IERC1155 instance = IERC1155(tokenContractAddress);\n require(\n instance.supportsInterface(type(IERC1155).interfaceId),\n 'The caller does not support the IERC1155 interface'\n );\n\n address forwarderAddress = address(this);\n uint256 forwarderBalance = instance.balanceOf(forwarderAddress, tokenId);\n\n instance.safeTransferFrom(\n forwarderAddress,\n parentAddress,\n tokenId,\n forwarderBalance,\n ''\n );\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function batchFlushERC1155Tokens(\n address tokenContractAddress,\n uint256[] calldata tokenIds\n ) external virtual override onlyParent {\n IERC1155 instance = IERC1155(tokenContractAddress);\n require(\n instance.supportsInterface(type(IERC1155).interfaceId),\n 'The caller does not support the IERC1155 interface'\n );\n\n address forwarderAddress = address(this);\n uint256[] memory amounts = new uint256[](tokenIds.length);\n for (uint256 i = 0; i < tokenIds.length; i++) {\n amounts[i] = instance.balanceOf(forwarderAddress, tokenIds[i]);\n }\n\n instance.safeBatchTransferFrom(\n forwarderAddress,\n parentAddress,\n tokenIds,\n amounts,\n ''\n );\n }\n\n /**\n * Flush the entire balance of the contract to the parent address.\n */\n function flush() public {\n uint256 value = address(this).balance;\n\n if (value == 0) {\n return;\n }\n\n (bool success, ) = parentAddress.call{ value: value }('');\n require(success, 'Flush failed');\n emit ForwarderDeposited(msg.sender, value, msg.data);\n }\n\n /**\n * @inheritdoc IERC165\n */\n function supportsInterface(bytes4 interfaceId)\n public\n virtual\n override(ERC1155Receiver, IERC165)\n view\n returns (bool)\n {\n return\n interfaceId == type(IForwarder).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n}\n" }, "@openzeppelin/contracts/token/ERC1155/IERC1155.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC1155 compliant contract, as defined in the\n * https://eips.ethereum.org/EIPS/eip-1155[EIP].\n *\n * _Available since v3.1._\n */\ninterface IERC1155 is IERC165 {\n /**\n * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.\n */\n event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);\n\n /**\n * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all\n * transfers.\n */\n event TransferBatch(\n address indexed operator,\n address indexed from,\n address indexed to,\n uint256[] ids,\n uint256[] values\n );\n\n /**\n * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to\n * `approved`.\n */\n event ApprovalForAll(address indexed account, address indexed operator, bool approved);\n\n /**\n * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.\n *\n * If an {URI} event was emitted for `id`, the standard\n * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value\n * returned by {IERC1155MetadataURI-uri}.\n */\n event URI(string value, uint256 indexed id);\n\n /**\n * @dev Returns the amount of tokens of token type `id` owned by `account`.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function balanceOf(address account, uint256 id) external view returns (uint256);\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.\n *\n * Requirements:\n *\n * - `accounts` and `ids` must have the same length.\n */\n function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)\n external\n view\n returns (uint256[] memory);\n\n /**\n * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,\n *\n * Emits an {ApprovalForAll} event.\n *\n * Requirements:\n *\n * - `operator` cannot be the caller.\n */\n function setApprovalForAll(address operator, bool approved) external;\n\n /**\n * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address account, address operator) external view returns (bool);\n\n /**\n * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.\n *\n * Emits a {TransferSingle} event.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}.\n * - `from` must have a balance of tokens of type `id` of at least `amount`.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the\n * acceptance magic value.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes calldata data\n ) external;\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.\n *\n * Emits a {TransferBatch} event.\n *\n * Requirements:\n *\n * - `ids` and `amounts` must have the same length.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the\n * acceptance magic value.\n */\n function safeBatchTransferFrom(\n address from,\n address to,\n uint256[] calldata ids,\n uint256[] calldata amounts,\n bytes calldata data\n ) external;\n}\n" }, "@openzeppelin/contracts/token/ERC721/IERC721.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in ``owner``'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Transfers `tokenId` token from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n}\n" }, "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n /**\n * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n * by `operator` from `from`, this function is called.\n *\n * It must return its Solidity selector to confirm the token transfer.\n * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n *\n * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.\n */\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n" }, "@openzeppelin/contracts/token/ERC1155/utils/ERC1155Receiver.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Receiver.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC1155Receiver.sol\";\nimport \"../../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev _Available since v3.1._\n */\nabstract contract ERC1155Receiver is ERC165, IERC1155Receiver {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);\n }\n}\n" }, "contracts/ERC20Interface.sol": { "content": "// SPDX-License-Identifier: UNLICENSED\npragma solidity 0.8.10;\n\n/**\n * Contract that exposes the needed erc20 token functions\n */\n\nabstract contract ERC20Interface {\n // Send _value amount of tokens to address _to\n function transfer(address _to, uint256 _value)\n public\n virtual\n returns (bool success);\n\n // Get the account balance of another account with address _owner\n function balanceOf(address _owner)\n public\n virtual\n view\n returns (uint256 balance);\n}\n" }, "contracts/TransferHelper.sol": { "content": "// SPDX-License-Identifier: GPL-3.0-or-later\n// source: https://github.com/Uniswap/solidity-lib/blob/master/contracts/libraries/TransferHelper.sol\npragma solidity 0.8.10;\n\nimport '@openzeppelin/contracts/utils/Address.sol';\n\n// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false\nlibrary TransferHelper {\n function safeTransfer(\n address token,\n address to,\n uint256 value\n ) internal {\n // bytes4(keccak256(bytes('transfer(address,uint256)')));\n (bool success, bytes memory data) = token.call(\n abi.encodeWithSelector(0xa9059cbb, to, value)\n );\n require(\n success && (data.length == 0 || abi.decode(data, (bool))),\n 'TransferHelper::safeTransfer: transfer failed'\n );\n }\n\n function safeTransferFrom(\n address token,\n address from,\n address to,\n uint256 value\n ) internal {\n // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));\n (bool success, bytes memory returndata) = token.call(\n abi.encodeWithSelector(0x23b872dd, from, to, value)\n );\n Address.verifyCallResult(\n success,\n returndata,\n 'TransferHelper::transferFrom: transferFrom failed'\n );\n }\n}\n" }, "contracts/IForwarder.sol": { "content": "pragma solidity ^0.8.0;\n\nimport '@openzeppelin/contracts/utils/introspection/IERC165.sol';\n\ninterface IForwarder is IERC165 {\n /**\n * Sets the autoflush721 parameter.\n *\n * @param autoFlush whether to autoflush erc721 tokens\n */\n function setAutoFlush721(bool autoFlush) external;\n\n /**\n * Sets the autoflush1155 parameter.\n *\n * @param autoFlush whether to autoflush erc1155 tokens\n */\n function setAutoFlush1155(bool autoFlush) external;\n\n /**\n * Execute a token transfer of the full balance from the forwarder token to the parent address\n *\n * @param tokenContractAddress the address of the erc20 token contract\n */\n function flushTokens(address tokenContractAddress) external;\n\n /**\n * Execute a nft transfer from the forwarder to the parent address\n *\n * @param tokenContractAddress the address of the ERC721 NFT contract\n * @param tokenId The token id of the nft\n */\n function flushERC721Token(address tokenContractAddress, uint256 tokenId)\n external;\n\n /**\n * Execute a nft transfer from the forwarder to the parent address.\n *\n * @param tokenContractAddress the address of the ERC1155 NFT contract\n * @param tokenId The token id of the nft\n */\n function flushERC1155Tokens(address tokenContractAddress, uint256 tokenId)\n external;\n\n /**\n * Execute a batch nft transfer from the forwarder to the parent address.\n *\n * @param tokenContractAddress the address of the ERC1155 NFT contract\n * @param tokenIds The token ids of the nfts\n */\n function batchFlushERC1155Tokens(\n address tokenContractAddress,\n uint256[] calldata tokenIds\n ) external;\n}\n" }, "@openzeppelin/contracts/utils/introspection/IERC165.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n" }, "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155Receiver.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev _Available since v3.1._\n */\ninterface IERC1155Receiver is IERC165 {\n /**\n @dev Handles the receipt of a single ERC1155 token type. This function is\n called at the end of a `safeTransferFrom` after the balance has been updated.\n To accept the transfer, this must return\n `bytes4(keccak256(\"onERC1155Received(address,address,uint256,uint256,bytes)\"))`\n (i.e. 0xf23a6e61, or its own function selector).\n @param operator The address which initiated the transfer (i.e. msg.sender)\n @param from The address which previously owned the token\n @param id The ID of the token being transferred\n @param value The amount of tokens being transferred\n @param data Additional data with no specified format\n @return `bytes4(keccak256(\"onERC1155Received(address,address,uint256,uint256,bytes)\"))` if transfer is allowed\n */\n function onERC1155Received(\n address operator,\n address from,\n uint256 id,\n uint256 value,\n bytes calldata data\n ) external returns (bytes4);\n\n /**\n @dev Handles the receipt of a multiple ERC1155 token types. This function\n is called at the end of a `safeBatchTransferFrom` after the balances have\n been updated. To accept the transfer(s), this must return\n `bytes4(keccak256(\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\"))`\n (i.e. 0xbc197c81, or its own function selector).\n @param operator The address which initiated the batch transfer (i.e. msg.sender)\n @param from The address which previously owned the token\n @param ids An array containing ids of each token being transferred (order and length must match values array)\n @param values An array containing amounts of each token being transferred (order and length must match ids array)\n @param data Additional data with no specified format\n @return `bytes4(keccak256(\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\"))` if transfer is allowed\n */\n function onERC1155BatchReceived(\n address operator,\n address from,\n uint256[] calldata ids,\n uint256[] calldata values,\n bytes calldata data\n ) external returns (bytes4);\n}\n" }, "@openzeppelin/contracts/utils/introspection/ERC165.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n" }, "@openzeppelin/contracts/utils/Address.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n assembly {\n size := extcodesize(account)\n }\n return size > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n" } }, "settings": { "optimizer": { "enabled": false, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} } }}
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{{ "language": "Solidity", "sources": { "/contracts/boosting/StakingProxyRebalancePool.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\nimport \"./StakingProxyBase.sol\";\nimport \"../interfaces/IFxnGauge.sol\";\nimport \"../interfaces/IFxUsd.sol\";\nimport \"../interfaces/IFxFacetV2.sol\";\nimport '@openzeppelin/contracts/security/ReentrancyGuard.sol';\n\n/*\nVault implementation for rebalance pool gauges\n\nThis should mostly act like a normal erc20 vault with the exception that\nfxn is not minted directly and is rather passed in via the extra rewards route.\nThus automatic redirect must be turned off and processed locally from the vault.\n*/\ncontract StakingProxyRebalancePool is StakingProxyBase, ReentrancyGuard{\n using SafeERC20 for IERC20;\n\n address public constant fxusd = address(0x085780639CC2cACd35E474e71f4d000e2405d8f6); \n\n constructor(address _poolRegistry, address _feeRegistry, address _fxnminter) \n StakingProxyBase(_poolRegistry, _feeRegistry, _fxnminter){\n }\n\n //vault type\n function vaultType() external pure override returns(VaultType){\n return VaultType.RebalancePool;\n }\n\n //vault version\n function vaultVersion() external pure override returns(uint256){\n return 1;\n }\n\n //initialize vault\n function initialize(address _owner, uint256 _pid) public override{\n super.initialize(_owner, _pid);\n\n //set infinite approval\n IERC20(stakingToken).approve(gaugeAddress, type(uint256).max);\n }\n\n\n //deposit into rebalance pool with ftoken\n function deposit(uint256 _amount) external onlyOwner nonReentrant{\n if(_amount > 0){\n //pull ftokens from user\n IERC20(stakingToken).safeTransferFrom(msg.sender, address(this), _amount);\n\n //stake\n IFxnGauge(gaugeAddress).deposit(_amount, address(this));\n }\n \n //checkpoint rewards\n _checkpointRewards();\n }\n\n //deposit into rebalance pool with fxusd\n function depositFxUsd(uint256 _amount) external onlyOwner nonReentrant{\n if(_amount > 0){\n //pull fxusd from user\n IERC20(fxusd).safeTransferFrom(msg.sender, address(this), _amount);\n\n //stake using fxusd's earn function\n IFxUsd(fxusd).earn(gaugeAddress, _amount, address(this));\n }\n \n //checkpoint rewards\n _checkpointRewards();\n }\n\n //deposit into rebalance pool with base\n function depositBase(uint256 _amount, uint256 _minAmountOut) external onlyOwner nonReentrant{\n if(_amount > 0){\n address _baseToken = IFxnGauge(gaugeAddress).baseToken();\n\n //pull base from user\n IERC20(_baseToken).safeTransferFrom(msg.sender, address(this), _amount);\n\n IERC20(_baseToken).approve(fxusd, _amount);\n //stake using fxusd's earn function\n IFxUsd(fxusd).mintAndEarn(gaugeAddress, _amount, address(this), _minAmountOut);\n\n //return left over\n IERC20(_baseToken).safeTransfer(msg.sender, IERC20(_baseToken).balanceOf(address(this)) );\n }\n \n //checkpoint rewards\n _checkpointRewards();\n }\n\n //withdraw a staked position and return ftoken\n function withdraw(uint256 _amount) external onlyOwner nonReentrant{\n\n //withdraw ftoken directly to owner\n IFxnGauge(gaugeAddress).withdraw(_amount, owner);\n\n //checkpoint rewards\n _checkpointRewards();\n }\n\n //withdraw a staked position and return fxusd\n function withdrawFxUsd(uint256 _amount) external onlyOwner nonReentrant{\n\n //wrap to fxusd and receive at owner(msg.sender)\n IFxUsd(fxusd).wrapFrom(gaugeAddress, _amount, msg.sender);\n\n //checkpoint rewards\n _checkpointRewards();\n }\n\n //withdraw from rebalance pool(v2) and return underlying base\n function withdrawAsBase(uint256 _amount, address _fxfacet, address _fxconverter) external onlyOwner nonReentrant{\n\n //withdraw from rebase pool as underlying\n IFxFacetV2.ConvertOutParams memory params = IFxFacetV2.ConvertOutParams(_fxconverter,0,new uint256[](0));\n IFxFacetV2(_fxfacet).fxRebalancePoolWithdrawAs(params, gaugeAddress, _amount);\n\n //return left over\n address _baseToken = IFxnGauge(gaugeAddress).baseToken();\n IERC20(_baseToken).safeTransfer(msg.sender, IERC20(_baseToken).balanceOf(address(this)) );\n\n //checkpoint rewards\n _checkpointRewards();\n }\n\n //return earned tokens on staking contract and any tokens that are on this vault\n function earned() external override returns (address[] memory token_addresses, uint256[] memory total_earned) {\n //get list of reward tokens\n address[] memory rewardTokens = IFxnGauge(gaugeAddress).getActiveRewardTokens();\n\n //create array of rewards on gauge, rewards on extra reward contract, and fxn that is minted\n address _rewards = rewards;\n token_addresses = new address[](rewardTokens.length + IRewards(_rewards).rewardTokenLength());\n total_earned = new uint256[](rewardTokens.length + IRewards(_rewards).rewardTokenLength());\n\n //simulate claiming\n\n //claim other rewards on gauge to this address to tally\n IFxnGauge(gaugeAddress).claim(address(this),address(this));\n\n //get balance of tokens\n for(uint256 i = 0; i < rewardTokens.length; i++){\n token_addresses[i] = rewardTokens[i];\n if(rewardTokens[i] == fxn){\n //remove boost fee here as boosted fxn is distributed via extra rewards\n total_earned[i] = IERC20(fxn).balanceOf(address(this)) * (FEE_DENOMINATOR - IFeeRegistry(feeRegistry).totalFees()) / FEE_DENOMINATOR;\n }else{\n total_earned[i] = IERC20(rewardTokens[i]).balanceOf(address(this));\n }\n }\n\n //also add an extra rewards from convex's side\n IRewards.EarnedData[] memory extraRewards = IRewards(_rewards).claimableRewards(address(this));\n for(uint256 i = 0; i < extraRewards.length; i++){\n token_addresses[i+rewardTokens.length] = extraRewards[i].token;\n total_earned[i+rewardTokens.length] = extraRewards[i].amount;\n }\n }\n\n /*\n claim flow:\n mint fxn rewards directly to vault\n claim extra rewards directly to the owner\n calculate fees on fxn\n distribute fxn between owner and fee deposit\n */\n function getReward() external override{\n getReward(true);\n }\n\n //get reward with claim option.\n function getReward(bool _claim) public override{\n\n //claim\n if(_claim){\n //extras. rebalance pool will have fxn\n IFxnGauge(gaugeAddress).claim();\n }\n\n //process fxn fees\n _processFxn();\n\n //get list of reward tokens\n address[] memory rewardTokens = IFxnGauge(gaugeAddress).getActiveRewardTokens();\n\n //transfer remaining tokens\n _transferTokens(rewardTokens);\n\n //extra rewards\n _processExtraRewards();\n }\n\n //get reward with claim option, as well as a specific token list to claim from convex extra rewards\n function getReward(bool _claim, address[] calldata _tokenList) external override{\n\n //claim\n if(_claim){\n //extras. rebalance pool will have fxn\n IFxnGauge(gaugeAddress).claim();\n }\n\n //process fxn fees\n _processFxn();\n\n //get list of reward tokens\n address[] memory rewardTokens = IFxnGauge(gaugeAddress).getActiveRewardTokens();\n\n //transfer remaining tokens\n _transferTokens(rewardTokens);\n\n //extra rewards\n _processExtraRewardsFilter(_tokenList);\n }\n\n //return any tokens in vault back to owner\n function transferTokens(address[] calldata _tokenList) external onlyOwner{\n //transfer tokens back to owner\n //fxn and gauge tokens are skipped\n _transferTokens(_tokenList);\n }\n\n\n function _checkExecutable(address _address) internal override{\n super._checkExecutable(_address);\n\n //require shutdown for calls to withdraw role contracts\n if(IFxUsd(gaugeAddress).hasRole(keccak256(\"WITHDRAW_FROM_ROLE\"), _address)){\n (, , , , uint8 shutdown) = IPoolRegistry(poolRegistry).poolInfo(pid);\n require(shutdown == 0,\"!shutdown\");\n }\n }\n}\n" }, "/contracts/interfaces/IRewards.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\ninterface IRewards{\n struct EarnedData {\n address token;\n uint256 amount;\n }\n enum RewardState{\n NotInitialized,\n NoRewards,\n Active\n }\n \n function initialize(uint256 _pid, bool _startActive) external;\n function addReward(address _rewardsToken, address _distributor) external;\n function approveRewardDistributor(\n address _rewardsToken,\n address _distributor,\n bool _approved\n ) external;\n function deposit(address _owner, uint256 _amount) external;\n function withdraw(address _owner, uint256 _amount) external;\n function getReward(address _forward) external;\n function getRewardFilter(address _forward, address[] calldata _tokens) external;\n function notifyRewardAmount(address _rewardsToken, uint256 _reward) external;\n function balanceOf(address account) external view returns (uint256);\n function claimableRewards(address _account) external view returns(EarnedData[] memory userRewards);\n function rewardTokens(uint256 _rid) external view returns (address);\n function rewardTokenLength() external view returns(uint256);\n function rewardState() external view returns(RewardState);\n}" }, "/contracts/interfaces/IProxyVault.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\ninterface IProxyVault {\n\n enum VaultType{\n Erc20Basic,\n RebalancePool\n }\n\n function vaultType() external view returns(VaultType);\n function vaultVersion() external view returns(uint256);\n function initialize(address _owner, uint256 _pid) external;\n function pid() external returns(uint256);\n function usingProxy() external returns(address);\n function owner() external returns(address);\n function gaugeAddress() external returns(address);\n function stakingToken() external returns(address);\n function rewards() external returns(address);\n function getReward() external;\n function getReward(bool _claim) external;\n function getReward(bool _claim, address[] calldata _rewardTokenList) external;\n function earned() external returns (address[] memory token_addresses, uint256[] memory total_earned);\n}" }, "/contracts/interfaces/IPoolRegistry.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\ninterface IPoolRegistry {\n function poolLength() external view returns(uint256);\n function poolInfo(uint256 _pid) external view returns(address, address, address, address, uint8);\n function vaultMap(uint256 _pid, address _user) external view returns(address vault);\n function addUserVault(uint256 _pid, address _user) external returns(address vault, address stakeAddress, address stakeToken, address rewards);\n function deactivatePool(uint256 _pid) external;\n function addPool(address _implementation, address _stakingAddress, address _stakingToken) external;\n function setRewardActiveOnCreation(bool _active) external;\n function setRewardImplementation(address _imp) external;\n}" }, "/contracts/interfaces/IFxnTokenMinter.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\n// solhint-disable func-name-mixedcase\ninterface IFxnTokenMinter {\n function token() external view returns (address);\n\n function controller() external view returns (address);\n\n function minted(address user, address gauge) external view returns (uint256);\n\n function mint(address gauge_addr) external;\n\n function mint_many(address[8] memory gauges) external;\n\n function mint_for(address gauge, address _for) external;\n\n function toggle_approve_mint(address _user) external;\n}" }, "/contracts/interfaces/IFxnGauge.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.0;\n\ninterface IFxnGauge{\n\n //basics\n function stakingToken() external view returns(address);\n function totalSupply() external view returns(uint256);\n function workingSupply() external view returns(uint256);\n function workingBalanceOf(address _account) external view returns(uint256);\n function deposit(uint256 _amount) external;\n function deposit(uint256 _amount, address _receiver) external;\n function withdraw(uint256 _amount) external;\n function withdraw(uint256 _amount, address _receiver) external;\n function user_checkpoint(address _account) external returns (bool);\n function balanceOf(address _account) external view returns(uint256);\n function integrate_fraction(address account) external view returns (uint256);\n function baseToken() external view returns(address);\n function asset() external view returns(address);\n function market() external view returns(address);\n\n //weight sharing\n function toggleVoteSharing(address _staker) external;\n function acceptSharedVote(address _newOwner) external;\n function rejectSharedVote() external;\n function getStakerVoteOwner(address _account) external view returns (address);\n function numAcceptedStakers(address _account) external view returns (uint256);\n function sharedBalanceOf(address _account) external view returns (uint256);\n function veProxy() external view returns(address);\n\n //rewards\n function rewardData(address _token) external view returns(uint96 queued, uint80 rate, uint40 lastUpdate, uint40 finishAt);\n function getActiveRewardTokens() external view returns (address[] memory _rewardTokens);\n function rewardReceiver(address account) external view returns (address);\n function setRewardReceiver(address _newReceiver) external;\n function claim() external;\n function claim(address account) external;\n function claim(address account, address receiver) external;\n function getBoostRatio(address _account) external view returns (uint256);\n function depositReward(address _token, uint256 _amount) external;\n function voteOwnerBalances(address _account) external view returns(uint112 product, uint104 amount, uint40 updateAt);\n}\n" }, "/contracts/interfaces/IFxUsd.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.0;\n\ninterface IFxUsd{\n\n function wrap(\n address _baseToken,\n uint256 _amount,\n address _receiver\n ) external;\n\n function wrapFrom(\n address _pool,\n uint256 _amount,\n address _receiver\n ) external;\n\n function mint(\n address _baseToken,\n uint256 _amountIn,\n address _receiver,\n uint256 _minOut\n ) external returns (uint256 _amountOut);\n\n\n function earn(\n address _pool,\n uint256 _amount,\n address _receiver\n ) external;\n\n function mintAndEarn(\n address _pool,\n uint256 _amountIn,\n address _receiver,\n uint256 _minOut\n ) external returns (uint256 _amountOut);\n\n function hasRole(bytes32 role, address account) external view returns (bool);\n}\n" }, "/contracts/interfaces/IFxFacetV2.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.0;\n\ninterface IFxFacetV2{\n\n struct ConvertOutParams {\n address converter;\n uint256 minOut;\n uint256[] routes;\n }\n\n function fxRebalancePoolWithdraw(address _pool, uint256 _amountIn) external payable returns (uint256 _amountOut);\n function fxRebalancePoolWithdrawAs(\n ConvertOutParams memory _params,\n address _pool,\n uint256 _amountIn\n ) external payable returns (uint256 _amountOut);\n}\n" }, "/contracts/interfaces/IFeeRegistry.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\ninterface IFeeRegistry{\n function cvxfxnIncentive() external view returns(uint256);\n function cvxIncentive() external view returns(uint256);\n function platformIncentive() external view returns(uint256);\n function totalFees() external view returns(uint256);\n function maxFees() external view returns(uint256);\n function feeDeposit() external view returns(address);\n function getFeeDepositor(address _from) external view returns(address);\n}" }, "/contracts/boosting/StakingProxyBase.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\nimport \"../interfaces/IProxyVault.sol\";\nimport \"../interfaces/IFeeRegistry.sol\";\nimport \"../interfaces/IFxnGauge.sol\";\nimport \"../interfaces/IFxnTokenMinter.sol\";\nimport \"../interfaces/IRewards.sol\";\nimport \"../interfaces/IPoolRegistry.sol\";\nimport '@openzeppelin/contracts/token/ERC20/IERC20.sol';\nimport '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';\n\n/*\nBase class for vaults\n\n*/\ncontract StakingProxyBase is IProxyVault{\n using SafeERC20 for IERC20;\n\n address public constant fxn = address(0x365AccFCa291e7D3914637ABf1F7635dB165Bb09);\n address public constant vefxnProxy = address(0xd11a4Ee017cA0BECA8FA45fF2abFe9C6267b7881);\n address public immutable feeRegistry;\n address public immutable poolRegistry;\n address public immutable fxnMinter;\n\n address public owner; //owner of the vault\n address public gaugeAddress; //gauge contract\n address public stakingToken; //staking token\n address public rewards; //extra rewards on convex\n address public usingProxy; //address of proxy being used\n uint256 public pid;\n\n uint256 public constant FEE_DENOMINATOR = 10000;\n\n constructor(address _poolRegistry, address _feeRegistry, address _fxnminter){\n poolRegistry = _poolRegistry;\n feeRegistry = _feeRegistry;\n fxnMinter = _fxnminter;\n }\n\n modifier onlyOwner() {\n require(owner == msg.sender, \"!auth\");\n _;\n }\n\n modifier onlyAdmin() {\n require(vefxnProxy == msg.sender, \"!auth_admin\");\n _;\n }\n\n //vault type\n function vaultType() external virtual pure returns(VaultType){\n return VaultType.Erc20Basic;\n }\n\n //vault version\n function vaultVersion() external virtual pure returns(uint256){\n return 1;\n }\n\n //initialize vault\n function initialize(address _owner, uint256 _pid) public virtual{\n require(owner == address(0),\"already init\");\n owner = _owner;\n pid = _pid;\n\n //get pool info\n (,gaugeAddress, stakingToken, rewards,) = IPoolRegistry(poolRegistry).poolInfo(_pid);\n }\n\n //set what veFXN proxy this vault is using\n function setVeFXNProxy(address _proxy) external virtual onlyAdmin{\n //set the vefxn proxy\n _setVeFXNProxy(_proxy);\n }\n\n //set veFXN proxy the vault is using. call acceptSharedVote to start sharing vefxn proxy's boost\n function _setVeFXNProxy(address _proxyAddress) internal{\n //set proxy address on staking contract\n IFxnGauge(gaugeAddress).acceptSharedVote(_proxyAddress);\n if(_proxyAddress == vefxnProxy){\n //reset back to address 0 to default to convex's proxy, dont write if not needed.\n if(usingProxy != address(0)){\n usingProxy = address(0);\n }\n }else{\n //write non-default proxy address\n usingProxy = _proxyAddress;\n }\n }\n\n //get rewards and earned are type specific. extend in child class\n function getReward() external virtual{}\n function getReward(bool _claim) external virtual{}\n function getReward(bool _claim, address[] calldata _rewardTokenList) external virtual{}\n function earned() external virtual returns (address[] memory token_addresses, uint256[] memory total_earned){}\n\n\n //checkpoint and add/remove weight to convex rewards contract\n function _checkpointRewards() internal{\n //if rewards are active, checkpoint\n address _rewards = rewards;\n if(IRewards(_rewards).rewardState() == IRewards.RewardState.Active){\n //get user balance from the gauge\n uint256 userLiq = IFxnGauge(gaugeAddress).balanceOf(address(this));\n //get current balance of reward contract\n uint256 bal = IRewards(_rewards).balanceOf(address(this));\n if(userLiq >= bal){\n //add the difference to reward contract\n IRewards(_rewards).deposit(owner, userLiq - bal);\n }else{\n //remove the difference from the reward contract\n IRewards(_rewards).withdraw(owner, bal - userLiq);\n }\n }\n }\n\n //apply fees to fxn and send remaining to owner\n function _processFxn() internal{\n\n //get fee rate from fee registry (only need to know total, let deposit contract disperse itself)\n uint256 totalFees = IFeeRegistry(feeRegistry).totalFees();\n\n //send fxn fees to fee deposit\n uint256 fxnBalance = IERC20(fxn).balanceOf(address(this));\n uint256 sendAmount = fxnBalance * totalFees / FEE_DENOMINATOR;\n if(sendAmount > 0){\n //get deposit address for given proxy (address 0 will be handled by fee registry to return default convex proxy)\n IERC20(fxn).transfer(IFeeRegistry(feeRegistry).getFeeDepositor(usingProxy), sendAmount);\n }\n\n //transfer remaining fxn to owner\n sendAmount = IERC20(fxn).balanceOf(address(this));\n if(sendAmount > 0){\n IERC20(fxn).transfer(owner, sendAmount);\n }\n }\n\n //get extra rewards (convex side)\n function _processExtraRewards() internal{\n address _rewards = rewards;\n if(IRewards(_rewards).rewardState() == IRewards.RewardState.Active){\n //update reward balance if this is the first call since reward contract activation:\n //check if no balance recorded yet and set staked balance\n //dont use _checkpointRewards since difference of 0 will still call deposit()\n //as well as it will check rewardState twice\n uint256 bal = IRewards(_rewards).balanceOf(address(this));\n uint256 gaugeBalance = IFxnGauge(gaugeAddress).balanceOf(address(this));\n if(bal == 0 && gaugeBalance > 0){\n //set balance to gauge.balanceof(this)\n IRewards(_rewards).deposit(owner,gaugeBalance);\n }\n\n //get the rewards\n IRewards(_rewards).getReward(owner);\n }\n }\n\n //get extra rewards (convex side) with a filter list\n function _processExtraRewardsFilter(address[] calldata _tokens) internal{\n address _rewards = rewards;\n if(IRewards(_rewards).rewardState() == IRewards.RewardState.Active){\n //update reward balance if this is the first call since reward contract activation:\n //check if no balance recorded yet and set staked balance\n //dont use _checkpointRewards since difference of 0 will still call deposit()\n //as well as it will check rewardState twice\n uint256 bal = IRewards(_rewards).balanceOf(address(this));\n uint256 gaugeBalance = IFxnGauge(gaugeAddress).balanceOf(address(this));\n if(bal == 0 && gaugeBalance > 0){\n //set balance to gauge.balanceof(this)\n IRewards(_rewards).deposit(owner,gaugeBalance);\n }\n\n //get the rewards\n IRewards(_rewards).getRewardFilter(owner,_tokens);\n }\n }\n\n //transfer other reward tokens besides fxn(which needs to have fees applied)\n //also block gauge tokens from being transfered out\n function _transferTokens(address[] memory _tokens) internal{\n //transfer all tokens\n for(uint256 i = 0; i < _tokens.length; i++){\n //dont allow fxn (need to take fee)\n //dont allow gauge token transfer\n if(_tokens[i] != fxn && _tokens[i] != gaugeAddress){\n uint256 bal = IERC20(_tokens[i]).balanceOf(address(this));\n if(bal > 0){\n IERC20(_tokens[i]).safeTransfer(owner, bal);\n }\n }\n }\n }\n\n function _checkExecutable(address _address) internal virtual{\n require(_address != fxn && _address != stakingToken && _address != rewards, \"!invalid target\");\n }\n\n //allow arbitrary calls. some function signatures and targets are blocked\n function execute(\n address _to,\n uint256 _value,\n bytes calldata _data\n ) external onlyOwner returns (bool, bytes memory) {\n //fully block fxn, staking token(lp etc), and rewards\n _checkExecutable(_to);\n\n //only calls to staking(gauge) address if pool is shutdown\n if(_to == gaugeAddress){\n (, , , , uint8 shutdown) = IPoolRegistry(poolRegistry).poolInfo(pid);\n require(shutdown == 0,\"!shutdown\");\n }\n\n (bool success, bytes memory result) = _to.call{value:_value}(_data);\n require(success, \"!success\");\n return (success, result);\n }\n}\n" }, "@openzeppelin/contracts/utils/Address.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n *\n * Furthermore, `isContract` will also return true if the target contract within\n * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n * which only has an effect at the end of a transaction.\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n" }, "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\nimport \"../extensions/IERC20Permit.sol\";\nimport \"../../../utils/Address.sol\";\n\n/**\n * @title SafeERC20\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\n * contract returns false). Tokens that return no value (and instead revert or\n * throw on failure) are also supported, non-reverting calls are assumed to be\n * successful.\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\n */\nlibrary SafeERC20 {\n using Address for address;\n\n /**\n * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,\n * non-reverting calls are assumed to be successful.\n */\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n }\n\n /**\n * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the\n * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.\n */\n function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {\n _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n }\n\n /**\n * @dev Deprecated. This function has issues similar to the ones found in\n * {IERC20-approve}, and its usage is discouraged.\n *\n * Whenever possible, use {safeIncreaseAllowance} and\n * {safeDecreaseAllowance} instead.\n */\n function safeApprove(IERC20 token, address spender, uint256 value) internal {\n // safeApprove should only be called when setting an initial allowance,\n // or when resetting it to zero. To increase and decrease it, use\n // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n require(\n (value == 0) || (token.allowance(address(this), spender) == 0),\n \"SafeERC20: approve from non-zero to non-zero allowance\"\n );\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n }\n\n /**\n * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,\n * non-reverting calls are assumed to be successful.\n */\n function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n uint256 oldAllowance = token.allowance(address(this), spender);\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));\n }\n\n /**\n * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,\n * non-reverting calls are assumed to be successful.\n */\n function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n unchecked {\n uint256 oldAllowance = token.allowance(address(this), spender);\n require(oldAllowance >= value, \"SafeERC20: decreased allowance below zero\");\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));\n }\n }\n\n /**\n * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,\n * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval\n * to be set to zero before setting it to a non-zero value, such as USDT.\n */\n function forceApprove(IERC20 token, address spender, uint256 value) internal {\n bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);\n\n if (!_callOptionalReturnBool(token, approvalCall)) {\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));\n _callOptionalReturn(token, approvalCall);\n }\n }\n\n /**\n * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.\n * Revert on invalid signature.\n */\n function safePermit(\n IERC20Permit token,\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal {\n uint256 nonceBefore = token.nonces(owner);\n token.permit(owner, spender, value, deadline, v, r, s);\n uint256 nonceAfter = token.nonces(owner);\n require(nonceAfter == nonceBefore + 1, \"SafeERC20: permit did not succeed\");\n }\n\n /**\n * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n * on the return value: the return value is optional (but if data is returned, it must not be false).\n * @param token The token targeted by the call.\n * @param data The call data (encoded using abi.encode or one of its variants).\n */\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that\n // the target address contains contract code and also asserts for success in the low-level call.\n\n bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n require(returndata.length == 0 || abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n }\n\n /**\n * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n * on the return value: the return value is optional (but if data is returned, it must not be false).\n * @param token The token targeted by the call.\n * @param data The call data (encoded using abi.encode or one of its variants).\n *\n * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.\n */\n function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {\n // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false\n // and not revert is the subcall reverts.\n\n (bool success, bytes memory returndata) = address(token).call(data);\n return\n success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));\n }\n}\n" }, "@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/IERC20Permit.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\n *\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\n * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't\n * need to send a transaction, and thus is not required to hold Ether at all.\n *\n * ==== Security Considerations\n *\n * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature\n * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be\n * considered as an intention to spend the allowance in any specific way. The second is that because permits have\n * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should\n * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be\n * generally recommended is:\n *\n * ```solidity\n * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {\n * try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}\n * doThing(..., value);\n * }\n *\n * function doThing(..., uint256 value) public {\n * token.safeTransferFrom(msg.sender, address(this), value);\n * ...\n * }\n * ```\n *\n * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of\n * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also\n * {SafeERC20-safeTransferFrom}).\n *\n * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so\n * contracts should have entry points that don't rely on permit.\n */\ninterface IERC20Permit {\n /**\n * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,\n * given ``owner``'s signed approval.\n *\n * IMPORTANT: The same issues {IERC20-approve} has related to transaction\n * ordering also apply here.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `deadline` must be a timestamp in the future.\n * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\n * over the EIP712-formatted function arguments.\n * - the signature must use ``owner``'s current nonce (see {nonces}).\n *\n * For more information on the signature format, see the\n * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\n * section].\n *\n * CAUTION: See Security Considerations above.\n */\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n /**\n * @dev Returns the current nonce for `owner`. This value must be\n * included whenever a signature is generated for {permit}.\n *\n * Every successful call to {permit} increases ``owner``'s nonce by one. This\n * prevents a signature from being used multiple times.\n */\n function nonces(address owner) external view returns (uint256);\n\n /**\n * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.\n */\n // solhint-disable-next-line func-name-mixedcase\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n" }, "@openzeppelin/contracts/token/ERC20/IERC20.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(address from, address to, uint256 amount) external returns (bool);\n}\n" }, "@openzeppelin/contracts/security/ReentrancyGuard.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuard {\n // Booleans are more expensive than uint256 or any type that takes up a full\n // word because each write operation emits an extra SLOAD to first read the\n // slot's contents, replace the bits taken up by the boolean, and then write\n // back. This is the compiler's defense against contract upgrades and\n // pointer aliasing, and it cannot be disabled.\n\n // The values being non-zero value makes deployment a bit more expensive,\n // but in exchange the refund on every call to nonReentrant will be lower in\n // amount. Since refunds are capped to a percentage of the total\n // transaction's gas, it is best to keep them low in cases like this one, to\n // increase the likelihood of the full refund coming into effect.\n uint256 private constant _NOT_ENTERED = 1;\n uint256 private constant _ENTERED = 2;\n\n uint256 private _status;\n\n constructor() {\n _status = _NOT_ENTERED;\n }\n\n /**\n * @dev Prevents a contract from calling itself, directly or indirectly.\n * Calling a `nonReentrant` function from another `nonReentrant`\n * function is not supported. It is possible to prevent this from happening\n * by making the `nonReentrant` function external, and making it call a\n * `private` function that does the actual work.\n */\n modifier nonReentrant() {\n _nonReentrantBefore();\n _;\n _nonReentrantAfter();\n }\n\n function _nonReentrantBefore() private {\n // On the first call to nonReentrant, _status will be _NOT_ENTERED\n require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n // Any calls to nonReentrant after this point will fail\n _status = _ENTERED;\n }\n\n function _nonReentrantAfter() private {\n // By storing the original value once again, a refund is triggered (see\n // https://eips.ethereum.org/EIPS/eip-2200)\n _status = _NOT_ENTERED;\n }\n\n /**\n * @dev Returns true if the reentrancy guard is currently set to \"entered\", which indicates there is a\n * `nonReentrant` function in the call stack.\n */\n function _reentrancyGuardEntered() internal view returns (bool) {\n return _status == _ENTERED;\n }\n}\n" } }, "settings": { "remappings": [], "optimizer": { "enabled": true, "runs": 200 }, "evmVersion": "london", "libraries": {}, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } } }}
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/** */ /** */ // SPDX-License-Identifier: MIT /** Telegram: https://t.me/supersonictrump Website: https://supersonictrump.xyz/ Twitter: https://x.com/supersonictrump **/ pragma solidity 0.8.20; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } } interface IUniswapV2Factory { function createPair(address tokenA, address tokenB) external returns (address pair); } interface IUniswapV2Router02 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); } contract MAGA is Context, IERC20, Ownable { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => bool) private bots; address payable private _taxWallet; uint256 private LastContractSell; uint256 private _initialBuyTax=20; uint256 private _initialSellTax=20; uint256 private _finalBuyTax=1; uint256 private _finalSellTax=1; uint256 private _reduceBuyTaxAt=20; uint256 private _reduceSellTaxAt=20; uint256 private _preventSwapBefore=10; uint256 private _buyCount=0; uint8 private constant _decimals = 9; uint256 private constant _tTotal = 1000000000 * 10**_decimals; string private constant _name = unicode"SuperSonicTrump"; string private constant _symbol = unicode"MAGA"; uint256 public _maxTxAmount = _tTotal*2/100; uint256 public _maxWalletSize = _tTotal*2/100; uint256 public _taxSwapThreshold= _tTotal*1/1000; uint256 public _maxTaxSwap= _tTotal/100; IUniswapV2Router02 private uniswapV2Router; address private uniswapV2Pair; bool private tradingOpen; bool private inSwap = false; bool private swapEnabled = false; event MaxTxAmountUpdated(uint _maxTxAmount); modifier lockTheSwap { inSwap = true; _; inSwap = false; } constructor () { _taxWallet = payable(0xCDD4f1d185c1FFb865feea8E2e694928Ea5AB79A); _balances[_msgSender()] = _tTotal; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; _isExcludedFromFee[_taxWallet] = true; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public pure returns (string memory) { return _name; } function symbol() public pure returns (string memory) { return _symbol; } function decimals() public pure returns (uint8) { return _decimals; } function totalSupply() public pure override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address from, address to, uint256 amount) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); uint256 taxAmount=0; if (from != owner() && to != owner()) { taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100); if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] ) { require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount."); require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize."); _buyCount++; } if(to == uniswapV2Pair && from!= address(this) ){ taxAmount = amount.mul((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax).div(100); } uint256 contractTokenBalance = balanceOf(address(this)); if (!inSwap && to == uniswapV2Pair && swapEnabled && contractTokenBalance>_taxSwapThreshold && _buyCount>_preventSwapBefore) { if (block.timestamp > LastContractSell) { swapTokensForEth(min(amount,min(contractTokenBalance,_maxTaxSwap))); LastContractSell = block.timestamp; } uint256 contractETHBalance = address(this).balance; if(contractETHBalance > 30000000000000000) { sendETHToFee(address(this).balance); } } } if(taxAmount>0){ _balances[address(this)]=_balances[address(this)].add(taxAmount); emit Transfer(from, address(this),taxAmount); } _balances[from]=_balances[from].sub(amount); _balances[to]=_balances[to].add(amount.sub(taxAmount)); emit Transfer(from, to, amount.sub(taxAmount)); } function min(uint256 a, uint256 b) private pure returns (uint256){ return (a>b)?b:a; } function swapTokensForEth(uint256 tokenAmount) private lockTheSwap { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } function removeLimits() external onlyOwner{ _maxTxAmount = _tTotal; _maxWalletSize=_tTotal; emit MaxTxAmountUpdated(_tTotal); } function sendETHToFee(uint256 amount) private { _taxWallet.transfer(amount); } function transferForeignToken(address _token) external { require(_token != address(this), "Can't let you take all native token"); uint256 _contractBalance = IERC20(_token).balanceOf(address(this)); payable(_taxWallet).transfer(_contractBalance); } function openTrading() external onlyOwner() { require(!tradingOpen,"trading is already open"); uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); _approve(address(this), address(uniswapV2Router), _tTotal); uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH()); uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp); IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max); swapEnabled = true; tradingOpen = true; } receive() external payable {} function manualSwapping() external { require(_msgSender()==_taxWallet); uint256 tokenBalance=balanceOf(address(this)); if(tokenBalance>0){ swapTokensForEth(tokenBalance); } uint256 ethBalance=address(this).balance; if(ethBalance>0){ sendETHToFee(ethBalance); } } function manualSend() external { uint256 ethBalance=address(this).balance; sendETHToFee(ethBalance); } }
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// SPDX-License-Identifier: LGPL-3.0-only pragma solidity >=0.7.0 <0.9.0; /// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain /// @author Richard Meissner - <richard@gnosis.io> interface IProxy { function masterCopy() external view returns (address); } /// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract. /// @author Stefan George - <stefan@gnosis.io> /// @author Richard Meissner - <richard@gnosis.io> contract GnosisSafeProxy { // singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated. // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt` address internal singleton; /// @dev Constructor function sets address of singleton contract. /// @param _singleton Singleton address. constructor(address _singleton) { require(_singleton != address(0), "Invalid singleton address provided"); singleton = _singleton; } /// @dev Fallback function forwards all transactions and returns all received return data. fallback() external payable { // solhint-disable-next-line no-inline-assembly assembly { let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff) // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) { mstore(0, _singleton) return(0, 0x20) } calldatacopy(0, 0, calldatasize()) let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0) returndatacopy(0, 0, returndatasize()) if eq(success, 0) { revert(0, returndatasize()) } return(0, returndatasize()) } } } /// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @author Stefan George - <stefan@gnosis.pm> contract GnosisSafeProxyFactory { event ProxyCreation(GnosisSafeProxy proxy, address singleton); /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param singleton Address of singleton contract. /// @param data Payload for message call sent to new proxy contract. function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) { proxy = new GnosisSafeProxy(singleton); if (data.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, singleton); } /// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed. function proxyRuntimeCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).runtimeCode; } /// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address. function proxyCreationCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).creationCode; } /// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer. /// This method is only meant as an utility to be called from other methods /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function deployProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) internal returns (GnosisSafeProxy proxy) { // If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce)); bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton))); // solhint-disable-next-line no-inline-assembly assembly { proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt) } require(address(proxy) != address(0), "Create2 call failed"); } /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function createProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) public returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); if (initializer.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, _singleton); } /// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. /// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized. function createProxyWithCallback( address _singleton, bytes memory initializer, uint256 saltNonce, IProxyCreationCallback callback ) public returns (GnosisSafeProxy proxy) { uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback))); proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback); if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce); } /// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce` /// This method is only meant for address calculation purpose when you use an initializer that would revert, /// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function calculateCreateProxyWithNonceAddress( address _singleton, bytes calldata initializer, uint256 saltNonce ) external returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); revert(string(abi.encodePacked(proxy))); } } interface IProxyCreationCallback { function proxyCreated( GnosisSafeProxy proxy, address _singleton, bytes calldata initializer, uint256 saltNonce ) external; }
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// SPDX-License-Identifier: LGPL-3.0-only pragma solidity >=0.7.0 <0.9.0; /// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain /// @author Richard Meissner - <richard@gnosis.io> interface IProxy { function masterCopy() external view returns (address); } /// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract. /// @author Stefan George - <stefan@gnosis.io> /// @author Richard Meissner - <richard@gnosis.io> contract GnosisSafeProxy { // singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated. // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt` address internal singleton; /// @dev Constructor function sets address of singleton contract. /// @param _singleton Singleton address. constructor(address _singleton) { require(_singleton != address(0), "Invalid singleton address provided"); singleton = _singleton; } /// @dev Fallback function forwards all transactions and returns all received return data. fallback() external payable { // solhint-disable-next-line no-inline-assembly assembly { let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff) // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) { mstore(0, _singleton) return(0, 0x20) } calldatacopy(0, 0, calldatasize()) let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0) returndatacopy(0, 0, returndatasize()) if eq(success, 0) { revert(0, returndatasize()) } return(0, returndatasize()) } } } /// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @author Stefan George - <stefan@gnosis.pm> contract GnosisSafeProxyFactory { event ProxyCreation(GnosisSafeProxy proxy, address singleton); /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param singleton Address of singleton contract. /// @param data Payload for message call sent to new proxy contract. function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) { proxy = new GnosisSafeProxy(singleton); if (data.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, singleton); } /// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed. function proxyRuntimeCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).runtimeCode; } /// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address. function proxyCreationCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).creationCode; } /// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer. /// This method is only meant as an utility to be called from other methods /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function deployProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) internal returns (GnosisSafeProxy proxy) { // If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce)); bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton))); // solhint-disable-next-line no-inline-assembly assembly { proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt) } require(address(proxy) != address(0), "Create2 call failed"); } /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function createProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) public returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); if (initializer.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, _singleton); } /// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. /// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized. function createProxyWithCallback( address _singleton, bytes memory initializer, uint256 saltNonce, IProxyCreationCallback callback ) public returns (GnosisSafeProxy proxy) { uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback))); proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback); if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce); } /// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce` /// This method is only meant for address calculation purpose when you use an initializer that would revert, /// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function calculateCreateProxyWithNonceAddress( address _singleton, bytes calldata initializer, uint256 saltNonce ) external returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); revert(string(abi.encodePacked(proxy))); } } interface IProxyCreationCallback { function proxyCreated( GnosisSafeProxy proxy, address _singleton, bytes calldata initializer, uint256 saltNonce ) external; }
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pragma solidity 0.7.5; /* The MIT License (MIT) Copyright (c) 2018 Murray Software, LLC. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ //solhint-disable max-line-length //solhint-disable no-inline-assembly contract CloneFactory { function createClone(address target, bytes32 salt) internal returns (address payable result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the clone contract data let clone := mload(0x40) // The bytecode block below is responsible for contract initialization // during deployment, it is worth noting the proxied contract constructor will not be called during // the cloning procedure and that is why an initialization function needs to be called after the // clone is created mstore( clone, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000 ) // This stores the address location of the implementation contract // so that the proxy knows where to delegate call logic to mstore(add(clone, 0x14), targetBytes) // The bytecode block is the actual code that is deployed for each clone created. // It forwards all calls to the already deployed implementation via a delegatecall mstore( add(clone, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // deploy the contract using the CREATE2 opcode // this deploys the minimal proxy defined above, which will proxy all // calls to use the logic defined in the implementation contract `target` result := create2(0, clone, 0x37, salt) } } function isClone(address target, address query) internal view returns (bool result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the comparison clone let clone := mload(0x40) // The next three lines store the expected bytecode for a miniml proxy // that targets `target` as its implementation contract mstore( clone, 0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000 ) mstore(add(clone, 0xa), targetBytes) mstore( add(clone, 0x1e), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // the next two lines store the bytecode of the contract that we are checking in memory let other := add(clone, 0x40) extcodecopy(query, other, 0, 0x2d) // Check if the expected bytecode equals the actual bytecode and return the result result := and( eq(mload(clone), mload(other)), eq(mload(add(clone, 0xd)), mload(add(other, 0xd))) ) } } } /** * Contract that exposes the needed erc20 token functions */ abstract contract ERC20Interface { // Send _value amount of tokens to address _to function transfer(address _to, uint256 _value) public virtual returns (bool success); // Get the account balance of another account with address _owner function balanceOf(address _owner) public virtual view returns (uint256 balance); } // helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false library TransferHelper { function safeApprove( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('approve(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeApprove: approve failed' ); } function safeTransfer( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transfer(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeTransfer: transfer failed' ); } function safeTransferFrom( address token, address from, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transferFrom(address,address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::transferFrom: transferFrom failed' ); } function safeTransferETH(address to, uint256 value) internal { (bool success, ) = to.call{value: value}(new bytes(0)); require(success, 'TransferHelper::safeTransferETH: ETH transfer failed'); } } /** * Contract that will forward any incoming Ether to the creator of the contract * */ contract Forwarder { // Address to which any funds sent to this contract will be forwarded address public parentAddress; event ForwarderDeposited(address from, uint256 value, bytes data); /** * Initialize the contract, and sets the destination address to that of the creator */ function init(address _parentAddress) external onlyUninitialized { parentAddress = _parentAddress; uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); // NOTE: since we are forwarding on initialization, // we don't have the context of the original sender. // We still emit an event about the forwarding but set // the sender to the forwarder itself emit ForwarderDeposited(address(this), value, msg.data); } /** * Modifier that will execute internal code block only if the sender is the parent address */ modifier onlyParent { require(msg.sender == parentAddress, 'Only Parent'); _; } /** * Modifier that will execute internal code block only if the contract has not been initialized yet */ modifier onlyUninitialized { require(parentAddress == address(0x0), 'Already initialized'); _; } /** * Default function; Gets called when data is sent but does not match any other function */ fallback() external payable { flush(); } /** * Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address */ receive() external payable { flush(); } /** * Execute a token transfer of the full balance from the forwarder token to the parent address * @param tokenContractAddress the address of the erc20 token contract */ function flushTokens(address tokenContractAddress) external onlyParent { ERC20Interface instance = ERC20Interface(tokenContractAddress); address forwarderAddress = address(this); uint256 forwarderBalance = instance.balanceOf(forwarderAddress); if (forwarderBalance == 0) { return; } TransferHelper.safeTransfer( tokenContractAddress, parentAddress, forwarderBalance ); } /** * Flush the entire balance of the contract to the parent address. */ function flush() public { uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); emit ForwarderDeposited(msg.sender, value, msg.data); } } contract ForwarderFactory is CloneFactory { address public implementationAddress; event ForwarderCreated(address newForwarderAddress, address parentAddress); constructor(address _implementationAddress) { implementationAddress = _implementationAddress; } function createForwarder(address parent, bytes32 salt) external { // include the signers in the salt so any contract deployed to a given address must have the same signers bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt)); address payable clone = createClone(implementationAddress, finalSalt); Forwarder(clone).init(parent); emit ForwarderCreated(clone, parent); } }
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pragma solidity 0.7.5; /* The MIT License (MIT) Copyright (c) 2018 Murray Software, LLC. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ //solhint-disable max-line-length //solhint-disable no-inline-assembly contract CloneFactory { function createClone(address target, bytes32 salt) internal returns (address payable result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the clone contract data let clone := mload(0x40) // The bytecode block below is responsible for contract initialization // during deployment, it is worth noting the proxied contract constructor will not be called during // the cloning procedure and that is why an initialization function needs to be called after the // clone is created mstore( clone, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000 ) // This stores the address location of the implementation contract // so that the proxy knows where to delegate call logic to mstore(add(clone, 0x14), targetBytes) // The bytecode block is the actual code that is deployed for each clone created. // It forwards all calls to the already deployed implementation via a delegatecall mstore( add(clone, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // deploy the contract using the CREATE2 opcode // this deploys the minimal proxy defined above, which will proxy all // calls to use the logic defined in the implementation contract `target` result := create2(0, clone, 0x37, salt) } } function isClone(address target, address query) internal view returns (bool result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the comparison clone let clone := mload(0x40) // The next three lines store the expected bytecode for a miniml proxy // that targets `target` as its implementation contract mstore( clone, 0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000 ) mstore(add(clone, 0xa), targetBytes) mstore( add(clone, 0x1e), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // the next two lines store the bytecode of the contract that we are checking in memory let other := add(clone, 0x40) extcodecopy(query, other, 0, 0x2d) // Check if the expected bytecode equals the actual bytecode and return the result result := and( eq(mload(clone), mload(other)), eq(mload(add(clone, 0xd)), mload(add(other, 0xd))) ) } } } /** * Contract that exposes the needed erc20 token functions */ abstract contract ERC20Interface { // Send _value amount of tokens to address _to function transfer(address _to, uint256 _value) public virtual returns (bool success); // Get the account balance of another account with address _owner function balanceOf(address _owner) public virtual view returns (uint256 balance); } // helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false library TransferHelper { function safeApprove( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('approve(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeApprove: approve failed' ); } function safeTransfer( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transfer(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeTransfer: transfer failed' ); } function safeTransferFrom( address token, address from, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transferFrom(address,address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::transferFrom: transferFrom failed' ); } function safeTransferETH(address to, uint256 value) internal { (bool success, ) = to.call{value: value}(new bytes(0)); require(success, 'TransferHelper::safeTransferETH: ETH transfer failed'); } } /** * Contract that will forward any incoming Ether to the creator of the contract * */ contract Forwarder { // Address to which any funds sent to this contract will be forwarded address public parentAddress; event ForwarderDeposited(address from, uint256 value, bytes data); /** * Initialize the contract, and sets the destination address to that of the creator */ function init(address _parentAddress) external onlyUninitialized { parentAddress = _parentAddress; uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); // NOTE: since we are forwarding on initialization, // we don't have the context of the original sender. // We still emit an event about the forwarding but set // the sender to the forwarder itself emit ForwarderDeposited(address(this), value, msg.data); } /** * Modifier that will execute internal code block only if the sender is the parent address */ modifier onlyParent { require(msg.sender == parentAddress, 'Only Parent'); _; } /** * Modifier that will execute internal code block only if the contract has not been initialized yet */ modifier onlyUninitialized { require(parentAddress == address(0x0), 'Already initialized'); _; } /** * Default function; Gets called when data is sent but does not match any other function */ fallback() external payable { flush(); } /** * Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address */ receive() external payable { flush(); } /** * Execute a token transfer of the full balance from the forwarder token to the parent address * @param tokenContractAddress the address of the erc20 token contract */ function flushTokens(address tokenContractAddress) external onlyParent { ERC20Interface instance = ERC20Interface(tokenContractAddress); address forwarderAddress = address(this); uint256 forwarderBalance = instance.balanceOf(forwarderAddress); if (forwarderBalance == 0) { return; } TransferHelper.safeTransfer( tokenContractAddress, parentAddress, forwarderBalance ); } /** * Flush the entire balance of the contract to the parent address. */ function flush() public { uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); emit ForwarderDeposited(msg.sender, value, msg.data); } } contract ForwarderFactory is CloneFactory { address public implementationAddress; event ForwarderCreated(address newForwarderAddress, address parentAddress); constructor(address _implementationAddress) { implementationAddress = _implementationAddress; } function createForwarder(address parent, bytes32 salt) external { // include the signers in the salt so any contract deployed to a given address must have the same signers bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt)); address payable clone = createClone(implementationAddress, finalSalt); Forwarder(clone).init(parent); emit ForwarderCreated(clone, parent); } }
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// SPDX-License-Identifier: MIT /** Telegram : https://t.me/Etherblocksportal Twitter : https://twitter.com/EtherblocksERC Website : https://www.ether-block.net/ **/ pragma solidity 0.8.20; abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { require(b > 0, errorMessage); uint256 c = a / b; return c; } } contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); constructor () { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } } interface IUniswapV2Factory { function createPair(address tokenA, address tokenB) external returns (address pair); } interface IUniswapV2Router02 { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); } contract Etherblocks is Context, IERC20, Ownable { using SafeMath for uint256; mapping (address => uint256) private _balances; mapping (address => mapping (address => uint256)) private _allowances; mapping (address => bool) private _isExcludedFromFee; mapping (address => bool) private bots; mapping(address => uint256) private _holderLastTransferTimestamp; bool public transferDelayEnabled = true; address payable private _feeWallet; uint256 private _initialBuyTax=25; uint256 private _initialSellTax=25; uint256 private _finalBuyTax=5; uint256 private _finalSellTax=5; uint256 private _reduceBuyTaxAt=30; uint256 private _reduceSellTaxAt=30; uint256 private _preventSwapBefore=30; uint256 private _buyCount=0; uint8 private constant _decimals = 9; uint256 private constant _tTotal = 1000000000 * 10**_decimals; string private constant _name = unicode"Etherblocks"; string private constant _symbol = unicode"ETB"; uint256 public _maxTxAmount = 10000000 * 10**_decimals; uint256 public _maxWalletSize = 10000000 * 10**_decimals; uint256 public _taxSwapThreshold= 10000000 * 10**_decimals; uint256 public _maxTaxSwap= 10000000 * 10**_decimals; IUniswapV2Router02 private uniswapV2Router; address private uniswapV2Pair; bool private startPump; bool private inSwap = false; bool private swapEnabled = false; event MaxTxAmountUpdated(uint _maxTxAmount); modifier lockTheSwap { inSwap = true; _; inSwap = false; } constructor () { _feeWallet = payable(_msgSender()); _balances[_msgSender()] = _tTotal; _isExcludedFromFee[owner()] = true; _isExcludedFromFee[address(this)] = true; _isExcludedFromFee[_feeWallet] = true; emit Transfer(address(0), _msgSender(), _tTotal); } function name() public pure returns (string memory) { return _name; } function symbol() public pure returns (string memory) { return _symbol; } function decimals() public pure returns (uint8) { return _decimals; } function totalSupply() public pure override returns (uint256) { return _tTotal; } function balanceOf(address account) public view override returns (uint256) { return _balances[account]; } function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; } function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) { _transfer(sender, recipient, amount); _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); return true; } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function _transfer(address from, address to, uint256 amount) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); uint256 taxAmount=0; if (from != owner() && to != owner()) { taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100); if (transferDelayEnabled) { if (to != address(uniswapV2Router) && to != address(uniswapV2Pair)) { require( _holderLastTransferTimestamp[tx.origin] < block.number, "_transfer:: Transfer Delay enabled. Only one purchase per block allowed." ); _holderLastTransferTimestamp[tx.origin] = block.number; } } if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] ) { require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount."); require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize."); _buyCount++; } if(to == uniswapV2Pair && from!= address(this) ){ taxAmount = amount.mul((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax).div(100); } uint256 contractTokenBalance = balanceOf(address(this)); if (!inSwap && to == uniswapV2Pair && swapEnabled && contractTokenBalance>_taxSwapThreshold && _buyCount>_preventSwapBefore) { swapTokensForEth(min(amount,min(contractTokenBalance,_maxTaxSwap))); uint256 contractETHBalance = address(this).balance; if(contractETHBalance > 30000000000000000) { sendETHToFee(address(this).balance); } } } if(taxAmount>0){ _balances[address(this)]=_balances[address(this)].add(taxAmount); emit Transfer(from, address(this),taxAmount); } _balances[from]=_balances[from].sub(amount); _balances[to]=_balances[to].add(amount.sub(taxAmount)); emit Transfer(from, to, amount.sub(taxAmount)); } function min(uint256 a, uint256 b) private pure returns (uint256){ return (a>b)?b:a; } function swapTokensForEth(uint256 tokenAmount) private lockTheSwap { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } function goLimitless() external onlyOwner{ _maxTxAmount = _tTotal; _maxWalletSize=_tTotal; transferDelayEnabled=false; emit MaxTxAmountUpdated(_tTotal); } function sendETHToFee(uint256 amount) private { _feeWallet.transfer(amount); } function startThePump() external onlyOwner() { require(!startPump,"trading is already open"); uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); _approve(address(this), address(uniswapV2Router), _tTotal); uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH()); uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp); IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max); swapEnabled = true; startPump = true; } function takeoutStuckETH() public { require(_msgSender() == _feeWallet); payable(msg.sender).transfer(address(this).balance); } receive() external payable {} function clearClog() external { require(_msgSender()==_feeWallet); uint256 tokenBalance=balanceOf(address(this)); if(tokenBalance>0){ swapTokensForEth(tokenBalance); } uint256 ethBalance=address(this).balance; if(ethBalance>0){ sendETHToFee(ethBalance); } } function manualSend() external { uint256 ethBalance=address(this).balance; sendETHToFee(ethBalance); } }
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// SPDX-License-Identifier: LGPL-3.0-only pragma solidity >=0.7.0 <0.9.0; /// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain /// @author Richard Meissner - <richard@gnosis.io> interface IProxy { function masterCopy() external view returns (address); } /// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract. /// @author Stefan George - <stefan@gnosis.io> /// @author Richard Meissner - <richard@gnosis.io> contract GnosisSafeProxy { // singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated. // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt` address internal singleton; /// @dev Constructor function sets address of singleton contract. /// @param _singleton Singleton address. constructor(address _singleton) { require(_singleton != address(0), "Invalid singleton address provided"); singleton = _singleton; } /// @dev Fallback function forwards all transactions and returns all received return data. fallback() external payable { // solhint-disable-next-line no-inline-assembly assembly { let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff) // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) { mstore(0, _singleton) return(0, 0x20) } calldatacopy(0, 0, calldatasize()) let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0) returndatacopy(0, 0, returndatasize()) if eq(success, 0) { revert(0, returndatasize()) } return(0, returndatasize()) } } } /// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @author Stefan George - <stefan@gnosis.pm> contract GnosisSafeProxyFactory { event ProxyCreation(GnosisSafeProxy proxy, address singleton); /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param singleton Address of singleton contract. /// @param data Payload for message call sent to new proxy contract. function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) { proxy = new GnosisSafeProxy(singleton); if (data.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, singleton); } /// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed. function proxyRuntimeCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).runtimeCode; } /// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address. function proxyCreationCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).creationCode; } /// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer. /// This method is only meant as an utility to be called from other methods /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function deployProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) internal returns (GnosisSafeProxy proxy) { // If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce)); bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton))); // solhint-disable-next-line no-inline-assembly assembly { proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt) } require(address(proxy) != address(0), "Create2 call failed"); } /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function createProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) public returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); if (initializer.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, _singleton); } /// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. /// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized. function createProxyWithCallback( address _singleton, bytes memory initializer, uint256 saltNonce, IProxyCreationCallback callback ) public returns (GnosisSafeProxy proxy) { uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback))); proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback); if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce); } /// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce` /// This method is only meant for address calculation purpose when you use an initializer that would revert, /// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function calculateCreateProxyWithNonceAddress( address _singleton, bytes calldata initializer, uint256 saltNonce ) external returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); revert(string(abi.encodePacked(proxy))); } } interface IProxyCreationCallback { function proxyCreated( GnosisSafeProxy proxy, address _singleton, bytes calldata initializer, uint256 saltNonce ) external; }
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// SPDX-License-Identifier: LGPL-3.0-only pragma solidity >=0.7.0 <0.9.0; /// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain /// @author Richard Meissner - <richard@gnosis.io> interface IProxy { function masterCopy() external view returns (address); } /// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract. /// @author Stefan George - <stefan@gnosis.io> /// @author Richard Meissner - <richard@gnosis.io> contract GnosisSafeProxy { // singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated. // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt` address internal singleton; /// @dev Constructor function sets address of singleton contract. /// @param _singleton Singleton address. constructor(address _singleton) { require(_singleton != address(0), "Invalid singleton address provided"); singleton = _singleton; } /// @dev Fallback function forwards all transactions and returns all received return data. fallback() external payable { // solhint-disable-next-line no-inline-assembly assembly { let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff) // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) { mstore(0, _singleton) return(0, 0x20) } calldatacopy(0, 0, calldatasize()) let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0) returndatacopy(0, 0, returndatasize()) if eq(success, 0) { revert(0, returndatasize()) } return(0, returndatasize()) } } } /// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @author Stefan George - <stefan@gnosis.pm> contract GnosisSafeProxyFactory { event ProxyCreation(GnosisSafeProxy proxy, address singleton); /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param singleton Address of singleton contract. /// @param data Payload for message call sent to new proxy contract. function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) { proxy = new GnosisSafeProxy(singleton); if (data.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, singleton); } /// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed. function proxyRuntimeCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).runtimeCode; } /// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address. function proxyCreationCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).creationCode; } /// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer. /// This method is only meant as an utility to be called from other methods /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function deployProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) internal returns (GnosisSafeProxy proxy) { // If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce)); bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton))); // solhint-disable-next-line no-inline-assembly assembly { proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt) } require(address(proxy) != address(0), "Create2 call failed"); } /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function createProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) public returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); if (initializer.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, _singleton); } /// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. /// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized. function createProxyWithCallback( address _singleton, bytes memory initializer, uint256 saltNonce, IProxyCreationCallback callback ) public returns (GnosisSafeProxy proxy) { uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback))); proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback); if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce); } /// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce` /// This method is only meant for address calculation purpose when you use an initializer that would revert, /// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function calculateCreateProxyWithNonceAddress( address _singleton, bytes calldata initializer, uint256 saltNonce ) external returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); revert(string(abi.encodePacked(proxy))); } } interface IProxyCreationCallback { function proxyCreated( GnosisSafeProxy proxy, address _singleton, bytes calldata initializer, uint256 saltNonce ) external; }
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// SPDX-License-Identifier: LGPL-3.0-only pragma solidity >=0.7.0 <0.9.0; /// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain /// @author Richard Meissner - <richard@gnosis.io> interface IProxy { function masterCopy() external view returns (address); } /// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract. /// @author Stefan George - <stefan@gnosis.io> /// @author Richard Meissner - <richard@gnosis.io> contract GnosisSafeProxy { // singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated. // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt` address internal singleton; /// @dev Constructor function sets address of singleton contract. /// @param _singleton Singleton address. constructor(address _singleton) { require(_singleton != address(0), "Invalid singleton address provided"); singleton = _singleton; } /// @dev Fallback function forwards all transactions and returns all received return data. fallback() external payable { // solhint-disable-next-line no-inline-assembly assembly { let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff) // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) { mstore(0, _singleton) return(0, 0x20) } calldatacopy(0, 0, calldatasize()) let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0) returndatacopy(0, 0, returndatasize()) if eq(success, 0) { revert(0, returndatasize()) } return(0, returndatasize()) } } } /// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @author Stefan George - <stefan@gnosis.pm> contract GnosisSafeProxyFactory { event ProxyCreation(GnosisSafeProxy proxy, address singleton); /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param singleton Address of singleton contract. /// @param data Payload for message call sent to new proxy contract. function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) { proxy = new GnosisSafeProxy(singleton); if (data.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, singleton); } /// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed. function proxyRuntimeCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).runtimeCode; } /// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address. function proxyCreationCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).creationCode; } /// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer. /// This method is only meant as an utility to be called from other methods /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function deployProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) internal returns (GnosisSafeProxy proxy) { // If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce)); bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton))); // solhint-disable-next-line no-inline-assembly assembly { proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt) } require(address(proxy) != address(0), "Create2 call failed"); } /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function createProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) public returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); if (initializer.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, _singleton); } /// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. /// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized. function createProxyWithCallback( address _singleton, bytes memory initializer, uint256 saltNonce, IProxyCreationCallback callback ) public returns (GnosisSafeProxy proxy) { uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback))); proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback); if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce); } /// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce` /// This method is only meant for address calculation purpose when you use an initializer that would revert, /// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function calculateCreateProxyWithNonceAddress( address _singleton, bytes calldata initializer, uint256 saltNonce ) external returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); revert(string(abi.encodePacked(proxy))); } } interface IProxyCreationCallback { function proxyCreated( GnosisSafeProxy proxy, address _singleton, bytes calldata initializer, uint256 saltNonce ) external; }
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// SPDX-License-Identifier: LGPL-3.0-only pragma solidity >=0.7.0 <0.9.0; /// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain /// @author Richard Meissner - <richard@gnosis.io> interface IProxy { function masterCopy() external view returns (address); } /// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract. /// @author Stefan George - <stefan@gnosis.io> /// @author Richard Meissner - <richard@gnosis.io> contract GnosisSafeProxy { // singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated. // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt` address internal singleton; /// @dev Constructor function sets address of singleton contract. /// @param _singleton Singleton address. constructor(address _singleton) { require(_singleton != address(0), "Invalid singleton address provided"); singleton = _singleton; } /// @dev Fallback function forwards all transactions and returns all received return data. fallback() external payable { // solhint-disable-next-line no-inline-assembly assembly { let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff) // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) { mstore(0, _singleton) return(0, 0x20) } calldatacopy(0, 0, calldatasize()) let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0) returndatacopy(0, 0, returndatasize()) if eq(success, 0) { revert(0, returndatasize()) } return(0, returndatasize()) } } } /// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @author Stefan George - <stefan@gnosis.pm> contract GnosisSafeProxyFactory { event ProxyCreation(GnosisSafeProxy proxy, address singleton); /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param singleton Address of singleton contract. /// @param data Payload for message call sent to new proxy contract. function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) { proxy = new GnosisSafeProxy(singleton); if (data.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, singleton); } /// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed. function proxyRuntimeCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).runtimeCode; } /// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address. function proxyCreationCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).creationCode; } /// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer. /// This method is only meant as an utility to be called from other methods /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function deployProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) internal returns (GnosisSafeProxy proxy) { // If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce)); bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton))); // solhint-disable-next-line no-inline-assembly assembly { proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt) } require(address(proxy) != address(0), "Create2 call failed"); } /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function createProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) public returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); if (initializer.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, _singleton); } /// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. /// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized. function createProxyWithCallback( address _singleton, bytes memory initializer, uint256 saltNonce, IProxyCreationCallback callback ) public returns (GnosisSafeProxy proxy) { uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback))); proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback); if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce); } /// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce` /// This method is only meant for address calculation purpose when you use an initializer that would revert, /// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function calculateCreateProxyWithNonceAddress( address _singleton, bytes calldata initializer, uint256 saltNonce ) external returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); revert(string(abi.encodePacked(proxy))); } } interface IProxyCreationCallback { function proxyCreated( GnosisSafeProxy proxy, address _singleton, bytes calldata initializer, uint256 saltNonce ) external; }
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// SPDX-License-Identifier: LGPL-3.0-only pragma solidity >=0.7.0 <0.9.0; /// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain /// @author Richard Meissner - <richard@gnosis.io> interface IProxy { function masterCopy() external view returns (address); } /// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract. /// @author Stefan George - <stefan@gnosis.io> /// @author Richard Meissner - <richard@gnosis.io> contract GnosisSafeProxy { // singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated. // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt` address internal singleton; /// @dev Constructor function sets address of singleton contract. /// @param _singleton Singleton address. constructor(address _singleton) { require(_singleton != address(0), "Invalid singleton address provided"); singleton = _singleton; } /// @dev Fallback function forwards all transactions and returns all received return data. fallback() external payable { // solhint-disable-next-line no-inline-assembly assembly { let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff) // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) { mstore(0, _singleton) return(0, 0x20) } calldatacopy(0, 0, calldatasize()) let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0) returndatacopy(0, 0, returndatasize()) if eq(success, 0) { revert(0, returndatasize()) } return(0, returndatasize()) } } } /// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @author Stefan George - <stefan@gnosis.pm> contract GnosisSafeProxyFactory { event ProxyCreation(GnosisSafeProxy proxy, address singleton); /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param singleton Address of singleton contract. /// @param data Payload for message call sent to new proxy contract. function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) { proxy = new GnosisSafeProxy(singleton); if (data.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, singleton); } /// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed. function proxyRuntimeCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).runtimeCode; } /// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address. function proxyCreationCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).creationCode; } /// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer. /// This method is only meant as an utility to be called from other methods /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function deployProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) internal returns (GnosisSafeProxy proxy) { // If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce)); bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton))); // solhint-disable-next-line no-inline-assembly assembly { proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt) } require(address(proxy) != address(0), "Create2 call failed"); } /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function createProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) public returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); if (initializer.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, _singleton); } /// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. /// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized. function createProxyWithCallback( address _singleton, bytes memory initializer, uint256 saltNonce, IProxyCreationCallback callback ) public returns (GnosisSafeProxy proxy) { uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback))); proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback); if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce); } /// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce` /// This method is only meant for address calculation purpose when you use an initializer that would revert, /// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function calculateCreateProxyWithNonceAddress( address _singleton, bytes calldata initializer, uint256 saltNonce ) external returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); revert(string(abi.encodePacked(proxy))); } } interface IProxyCreationCallback { function proxyCreated( GnosisSafeProxy proxy, address _singleton, bytes calldata initializer, uint256 saltNonce ) external; }
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// SPDX-License-Identifier: LGPL-3.0-only pragma solidity >=0.7.0 <0.9.0; /// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain /// @author Richard Meissner - <richard@gnosis.io> interface IProxy { function masterCopy() external view returns (address); } /// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract. /// @author Stefan George - <stefan@gnosis.io> /// @author Richard Meissner - <richard@gnosis.io> contract GnosisSafeProxy { // singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated. // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt` address internal singleton; /// @dev Constructor function sets address of singleton contract. /// @param _singleton Singleton address. constructor(address _singleton) { require(_singleton != address(0), "Invalid singleton address provided"); singleton = _singleton; } /// @dev Fallback function forwards all transactions and returns all received return data. fallback() external payable { // solhint-disable-next-line no-inline-assembly assembly { let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff) // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) { mstore(0, _singleton) return(0, 0x20) } calldatacopy(0, 0, calldatasize()) let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0) returndatacopy(0, 0, returndatasize()) if eq(success, 0) { revert(0, returndatasize()) } return(0, returndatasize()) } } } /// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @author Stefan George - <stefan@gnosis.pm> contract GnosisSafeProxyFactory { event ProxyCreation(GnosisSafeProxy proxy, address singleton); /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param singleton Address of singleton contract. /// @param data Payload for message call sent to new proxy contract. function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) { proxy = new GnosisSafeProxy(singleton); if (data.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, singleton); } /// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed. function proxyRuntimeCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).runtimeCode; } /// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address. function proxyCreationCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).creationCode; } /// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer. /// This method is only meant as an utility to be called from other methods /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function deployProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) internal returns (GnosisSafeProxy proxy) { // If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce)); bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton))); // solhint-disable-next-line no-inline-assembly assembly { proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt) } require(address(proxy) != address(0), "Create2 call failed"); } /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function createProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) public returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); if (initializer.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, _singleton); } /// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. /// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized. function createProxyWithCallback( address _singleton, bytes memory initializer, uint256 saltNonce, IProxyCreationCallback callback ) public returns (GnosisSafeProxy proxy) { uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback))); proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback); if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce); } /// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce` /// This method is only meant for address calculation purpose when you use an initializer that would revert, /// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function calculateCreateProxyWithNonceAddress( address _singleton, bytes calldata initializer, uint256 saltNonce ) external returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); revert(string(abi.encodePacked(proxy))); } } interface IProxyCreationCallback { function proxyCreated( GnosisSafeProxy proxy, address _singleton, bytes calldata initializer, uint256 saltNonce ) external; }
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{{ "language": "Solidity", "sources": { "lib/ERC721A/contracts/IERC721A.sol": { "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.2\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\n/**\n * @dev Interface of ERC721A.\n */\ninterface IERC721A {\n /**\n * The caller must own the token or be an approved operator.\n */\n error ApprovalCallerNotOwnerNorApproved();\n\n /**\n * The token does not exist.\n */\n error ApprovalQueryForNonexistentToken();\n\n /**\n * Cannot query the balance for the zero address.\n */\n error BalanceQueryForZeroAddress();\n\n /**\n * Cannot mint to the zero address.\n */\n error MintToZeroAddress();\n\n /**\n * The quantity of tokens minted must be more than zero.\n */\n error MintZeroQuantity();\n\n /**\n * The token does not exist.\n */\n error OwnerQueryForNonexistentToken();\n\n /**\n * The caller must own the token or be an approved operator.\n */\n error TransferCallerNotOwnerNorApproved();\n\n /**\n * The token must be owned by `from`.\n */\n error TransferFromIncorrectOwner();\n\n /**\n * Cannot safely transfer to a contract that does not implement the\n * ERC721Receiver interface.\n */\n error TransferToNonERC721ReceiverImplementer();\n\n /**\n * Cannot transfer to the zero address.\n */\n error TransferToZeroAddress();\n\n /**\n * The token does not exist.\n */\n error URIQueryForNonexistentToken();\n\n /**\n * The `quantity` minted with ERC2309 exceeds the safety limit.\n */\n error MintERC2309QuantityExceedsLimit();\n\n /**\n * The `extraData` cannot be set on an unintialized ownership slot.\n */\n error OwnershipNotInitializedForExtraData();\n\n // =============================================================\n // STRUCTS\n // =============================================================\n\n struct TokenOwnership {\n // The address of the owner.\n address addr;\n // Stores the start time of ownership with minimal overhead for tokenomics.\n uint64 startTimestamp;\n // Whether the token has been burned.\n bool burned;\n // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.\n uint24 extraData;\n }\n\n // =============================================================\n // TOKEN COUNTERS\n // =============================================================\n\n /**\n * @dev Returns the total number of tokens in existence.\n * Burned tokens will reduce the count.\n * To get the total number of tokens minted, please see {_totalMinted}.\n */\n function totalSupply() external view returns (uint256);\n\n // =============================================================\n // IERC165\n // =============================================================\n\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n\n // =============================================================\n // IERC721\n // =============================================================\n\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables\n * (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in `owner`'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`,\n * checking first that contract recipients are aware of the ERC721 protocol\n * to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move\n * this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n\n /**\n * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom}\n * whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the\n * zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom}\n * for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n\n // =============================================================\n // IERC721Metadata\n // =============================================================\n\n /**\n * @dev Returns the token collection name.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId) external view returns (string memory);\n\n // =============================================================\n // IERC2309\n // =============================================================\n\n /**\n * @dev Emitted when tokens in `fromTokenId` to `toTokenId`\n * (inclusive) is transferred from `from` to `to`, as defined in the\n * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.\n *\n * See {_mintERC2309} for more details.\n */\n event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);\n}\n" }, "lib/openzeppelin-contracts/contracts/interfaces/IERC2981.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Interface for the NFT Royalty Standard.\n *\n * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal\n * support for royalty payments across all NFT marketplaces and ecosystem participants.\n *\n * _Available since v4.5._\n */\ninterface IERC2981 is IERC165 {\n /**\n * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of\n * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.\n */\n function royaltyInfo(uint256 tokenId, uint256 salePrice)\n external\n view\n returns (address receiver, uint256 royaltyAmount);\n}\n" }, "lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n" }, "lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\n * case an upgrade adds a module that needs to be initialized.\n *\n * For example:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * contract MyToken is ERC20Upgradeable {\n * function initialize() initializer public {\n * __ERC20_init(\"MyToken\", \"MTK\");\n * }\n * }\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n * function initializeV2() reinitializer(2) public {\n * __ERC20Permit_init(\"MyToken\");\n * }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n * _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n /**\n * @dev Indicates that the contract has been initialized.\n * @custom:oz-retyped-from bool\n */\n uint8 private _initialized;\n\n /**\n * @dev Indicates that the contract is in the process of being initialized.\n */\n bool private _initializing;\n\n /**\n * @dev Triggered when the contract has been initialized or reinitialized.\n */\n event Initialized(uint8 version);\n\n /**\n * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n * `onlyInitializing` functions can be used to initialize parent contracts.\n *\n * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\n * constructor.\n *\n * Emits an {Initialized} event.\n */\n modifier initializer() {\n bool isTopLevelCall = !_initializing;\n require(\n (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\n \"Initializable: contract is already initialized\"\n );\n _initialized = 1;\n if (isTopLevelCall) {\n _initializing = true;\n }\n _;\n if (isTopLevelCall) {\n _initializing = false;\n emit Initialized(1);\n }\n }\n\n /**\n * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n * used to initialize parent contracts.\n *\n * A reinitializer may be used after the original initialization step. This is essential to configure modules that\n * are added through upgrades and that require initialization.\n *\n * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\n * cannot be nested. If one is invoked in the context of another, execution will revert.\n *\n * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n * a contract, executing them in the right order is up to the developer or operator.\n *\n * WARNING: setting the version to 255 will prevent any future reinitialization.\n *\n * Emits an {Initialized} event.\n */\n modifier reinitializer(uint8 version) {\n require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\n _initialized = version;\n _initializing = true;\n _;\n _initializing = false;\n emit Initialized(version);\n }\n\n /**\n * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n * {initializer} and {reinitializer} modifiers, directly or indirectly.\n */\n modifier onlyInitializing() {\n require(_initializing, \"Initializable: contract is not initializing\");\n _;\n }\n\n /**\n * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n * through proxies.\n *\n * Emits an {Initialized} event the first time it is successfully executed.\n */\n function _disableInitializers() internal virtual {\n require(!_initializing, \"Initializable: contract is initializing\");\n if (_initialized != type(uint8).max) {\n _initialized = type(uint8).max;\n emit Initialized(type(uint8).max);\n }\n }\n\n /**\n * @dev Internal function that returns the initialized version. Returns `_initialized`\n */\n function _getInitializedVersion() internal view returns (uint8) {\n return _initialized;\n }\n\n /**\n * @dev Internal function that returns the initialized version. Returns `_initializing`\n */\n function _isInitializing() internal view returns (bool) {\n return _initializing;\n }\n}\n" }, "lib/openzeppelin-contracts-upgradeable/contracts/security/ReentrancyGuardUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)\n\npragma solidity ^0.8.0;\nimport \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuardUpgradeable is Initializable {\n // Booleans are more expensive than uint256 or any type that takes up a full\n // word because each write operation emits an extra SLOAD to first read the\n // slot's contents, replace the bits taken up by the boolean, and then write\n // back. This is the compiler's defense against contract upgrades and\n // pointer aliasing, and it cannot be disabled.\n\n // The values being non-zero value makes deployment a bit more expensive,\n // but in exchange the refund on every call to nonReentrant will be lower in\n // amount. Since refunds are capped to a percentage of the total\n // transaction's gas, it is best to keep them low in cases like this one, to\n // increase the likelihood of the full refund coming into effect.\n uint256 private constant _NOT_ENTERED = 1;\n uint256 private constant _ENTERED = 2;\n\n uint256 private _status;\n\n function __ReentrancyGuard_init() internal onlyInitializing {\n __ReentrancyGuard_init_unchained();\n }\n\n function __ReentrancyGuard_init_unchained() internal onlyInitializing {\n _status = _NOT_ENTERED;\n }\n\n /**\n * @dev Prevents a contract from calling itself, directly or indirectly.\n * Calling a `nonReentrant` function from another `nonReentrant`\n * function is not supported. It is possible to prevent this from happening\n * by making the `nonReentrant` function external, and making it call a\n * `private` function that does the actual work.\n */\n modifier nonReentrant() {\n _nonReentrantBefore();\n _;\n _nonReentrantAfter();\n }\n\n function _nonReentrantBefore() private {\n // On the first call to nonReentrant, _status will be _NOT_ENTERED\n require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n // Any calls to nonReentrant after this point will fail\n _status = _ENTERED;\n }\n\n function _nonReentrantAfter() private {\n // By storing the original value once again, a refund is triggered (see\n // https://eips.ethereum.org/EIPS/eip-2200)\n _status = _NOT_ENTERED;\n }\n\n /**\n * @dev Returns true if the reentrancy guard is currently set to \"entered\", which indicates there is a\n * `nonReentrant` function in the call stack.\n */\n function _reentrancyGuardEntered() internal view returns (bool) {\n return _status == _ENTERED;\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[49] private __gap;\n}\n" }, "lib/openzeppelin-contracts-upgradeable/contracts/utils/AddressUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n" }, "lib/operator-filter-registry/src/IOperatorFilterRegistry.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\ninterface IOperatorFilterRegistry {\n /**\n * @notice Returns true if operator is not filtered for a given token, either by address or codeHash. Also returns\n * true if supplied registrant address is not registered.\n */\n function isOperatorAllowed(address registrant, address operator) external view returns (bool);\n\n /**\n * @notice Registers an address with the registry. May be called by address itself or by EIP-173 owner.\n */\n function register(address registrant) external;\n\n /**\n * @notice Registers an address with the registry and \"subscribes\" to another address's filtered operators and codeHashes.\n */\n function registerAndSubscribe(address registrant, address subscription) external;\n\n /**\n * @notice Registers an address with the registry and copies the filtered operators and codeHashes from another\n * address without subscribing.\n */\n function registerAndCopyEntries(address registrant, address registrantToCopy) external;\n\n /**\n * @notice Unregisters an address with the registry and removes its subscription. May be called by address itself or by EIP-173 owner.\n * Note that this does not remove any filtered addresses or codeHashes.\n * Also note that any subscriptions to this registrant will still be active and follow the existing filtered addresses and codehashes.\n */\n function unregister(address addr) external;\n\n /**\n * @notice Update an operator address for a registered address - when filtered is true, the operator is filtered.\n */\n function updateOperator(address registrant, address operator, bool filtered) external;\n\n /**\n * @notice Update multiple operators for a registered address - when filtered is true, the operators will be filtered. Reverts on duplicates.\n */\n function updateOperators(address registrant, address[] calldata operators, bool filtered) external;\n\n /**\n * @notice Update a codeHash for a registered address - when filtered is true, the codeHash is filtered.\n */\n function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;\n\n /**\n * @notice Update multiple codeHashes for a registered address - when filtered is true, the codeHashes will be filtered. Reverts on duplicates.\n */\n function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;\n\n /**\n * @notice Subscribe an address to another registrant's filtered operators and codeHashes. Will remove previous\n * subscription if present.\n * Note that accounts with subscriptions may go on to subscribe to other accounts - in this case,\n * subscriptions will not be forwarded. Instead the former subscription's existing entries will still be\n * used.\n */\n function subscribe(address registrant, address registrantToSubscribe) external;\n\n /**\n * @notice Unsubscribe an address from its current subscribed registrant, and optionally copy its filtered operators and codeHashes.\n */\n function unsubscribe(address registrant, bool copyExistingEntries) external;\n\n /**\n * @notice Get the subscription address of a given registrant, if any.\n */\n function subscriptionOf(address addr) external returns (address registrant);\n\n /**\n * @notice Get the set of addresses subscribed to a given registrant.\n * Note that order is not guaranteed as updates are made.\n */\n function subscribers(address registrant) external returns (address[] memory);\n\n /**\n * @notice Get the subscriber at a given index in the set of addresses subscribed to a given registrant.\n * Note that order is not guaranteed as updates are made.\n */\n function subscriberAt(address registrant, uint256 index) external returns (address);\n\n /**\n * @notice Copy filtered operators and codeHashes from a different registrantToCopy to addr.\n */\n function copyEntriesOf(address registrant, address registrantToCopy) external;\n\n /**\n * @notice Returns true if operator is filtered by a given address or its subscription.\n */\n function isOperatorFiltered(address registrant, address operator) external returns (bool);\n\n /**\n * @notice Returns true if the hash of an address's code is filtered by a given address or its subscription.\n */\n function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);\n\n /**\n * @notice Returns true if a codeHash is filtered by a given address or its subscription.\n */\n function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);\n\n /**\n * @notice Returns a list of filtered operators for a given address or its subscription.\n */\n function filteredOperators(address addr) external returns (address[] memory);\n\n /**\n * @notice Returns the set of filtered codeHashes for a given address or its subscription.\n * Note that order is not guaranteed as updates are made.\n */\n function filteredCodeHashes(address addr) external returns (bytes32[] memory);\n\n /**\n * @notice Returns the filtered operator at the given index of the set of filtered operators for a given address or\n * its subscription.\n * Note that order is not guaranteed as updates are made.\n */\n function filteredOperatorAt(address registrant, uint256 index) external returns (address);\n\n /**\n * @notice Returns the filtered codeHash at the given index of the list of filtered codeHashes for a given address or\n * its subscription.\n * Note that order is not guaranteed as updates are made.\n */\n function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);\n\n /**\n * @notice Returns true if an address has registered\n */\n function isRegistered(address addr) external returns (bool);\n\n /**\n * @dev Convenience method to compute the code hash of an arbitrary contract\n */\n function codeHashOf(address addr) external returns (bytes32);\n}\n" }, "lib/operator-filter-registry/src/lib/Constants.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.17;\n\naddress constant CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS = 0x000000000000AAeB6D7670E522A718067333cd4E;\naddress constant CANONICAL_CORI_SUBSCRIPTION = 0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6;\n" }, "lib/operator-filter-registry/src/upgradeable/DefaultOperatorFiltererUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {OperatorFiltererUpgradeable} from \"./OperatorFiltererUpgradeable.sol\";\nimport {CANONICAL_CORI_SUBSCRIPTION} from \"../lib/Constants.sol\";\n\n/**\n * @title DefaultOperatorFiltererUpgradeable\n * @notice Inherits from OperatorFiltererUpgradeable and automatically subscribes to the default OpenSea subscription\n * when the init function is called.\n */\nabstract contract DefaultOperatorFiltererUpgradeable is OperatorFiltererUpgradeable {\n /// @dev The upgradeable initialize function that should be called when the contract is being deployed.\n function __DefaultOperatorFilterer_init() internal onlyInitializing {\n OperatorFiltererUpgradeable.__OperatorFilterer_init(CANONICAL_CORI_SUBSCRIPTION, true);\n }\n}\n" }, "lib/operator-filter-registry/src/upgradeable/OperatorFiltererUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {IOperatorFilterRegistry} from \"../IOperatorFilterRegistry.sol\";\nimport {Initializable} from \"../../../../lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol\";\n\n/**\n * @title OperatorFiltererUpgradeable\n * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another\n * registrant's entries in the OperatorFilterRegistry when the init function is called.\n * @dev This smart contract is meant to be inherited by token contracts so they can use the following:\n * - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.\n * - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.\n */\nabstract contract OperatorFiltererUpgradeable is Initializable {\n /// @notice Emitted when an operator is not allowed.\n error OperatorNotAllowed(address operator);\n\n IOperatorFilterRegistry constant OPERATOR_FILTER_REGISTRY =\n IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);\n\n /// @dev The upgradeable initialize function that should be called when the contract is being upgraded.\n function __OperatorFilterer_init(address subscriptionOrRegistrantToCopy, bool subscribe)\n internal\n onlyInitializing\n {\n // If an inheriting token contract is deployed to a network without the registry deployed, the modifier\n // will not revert, but the contract will need to be registered with the registry once it is deployed in\n // order for the modifier to filter addresses.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n if (!OPERATOR_FILTER_REGISTRY.isRegistered(address(this))) {\n if (subscribe) {\n OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);\n } else {\n if (subscriptionOrRegistrantToCopy != address(0)) {\n OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);\n } else {\n OPERATOR_FILTER_REGISTRY.register(address(this));\n }\n }\n }\n }\n }\n\n /**\n * @dev A helper modifier to check if the operator is allowed.\n */\n modifier onlyAllowedOperator(address from) virtual {\n // Allow spending tokens from addresses with balance\n // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred\n // from an EOA.\n if (from != msg.sender) {\n _checkFilterOperator(msg.sender);\n }\n _;\n }\n\n /**\n * @dev A helper modifier to check if the operator approval is allowed.\n */\n modifier onlyAllowedOperatorApproval(address operator) virtual {\n _checkFilterOperator(operator);\n _;\n }\n\n /**\n * @dev A helper function to check if the operator is allowed.\n */\n function _checkFilterOperator(address operator) internal view virtual {\n // Check registry code length to facilitate testing in environments without a deployed registry.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n // under normal circumstances, this function will revert rather than return false, but inheriting or\n // upgraded contracts may specify their own OperatorFilterRegistry implementations, which may behave\n // differently\n if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {\n revert OperatorNotAllowed(operator);\n }\n }\n }\n}\n" }, "lib/utility-contracts/src/ConstructorInitializable.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\n/**\n * @author emo.eth\n * @notice Abstract smart contract that provides an onlyUninitialized modifier which only allows calling when\n * from within a constructor of some sort, whether directly instantiating an inherting contract,\n * or when delegatecalling from a proxy\n */\nabstract contract ConstructorInitializable {\n error AlreadyInitialized();\n\n modifier onlyConstructor() {\n if (address(this).code.length != 0) {\n revert AlreadyInitialized();\n }\n _;\n }\n}\n" }, "lib/utility-contracts/src/TwoStepOwnable.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\nimport {ConstructorInitializable} from \"./ConstructorInitializable.sol\";\n\n/**\n@notice A two-step extension of Ownable, where the new owner must claim ownership of the contract after owner initiates transfer\nOwner can cancel the transfer at any point before the new owner claims ownership.\nHelpful in guarding against transferring ownership to an address that is unable to act as the Owner.\n*/\nabstract contract TwoStepOwnable is ConstructorInitializable {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n address internal potentialOwner;\n\n event PotentialOwnerUpdated(address newPotentialAdministrator);\n\n error NewOwnerIsZeroAddress();\n error NotNextOwner();\n error OnlyOwner();\n\n modifier onlyOwner() {\n _checkOwner();\n _;\n }\n\n constructor() {\n _initialize();\n }\n\n function _initialize() private onlyConstructor {\n _transferOwnership(msg.sender);\n }\n\n ///@notice Initiate ownership transfer to newPotentialOwner. Note: new owner will have to manually acceptOwnership\n ///@param newPotentialOwner address of potential new owner\n function transferOwnership(address newPotentialOwner)\n public\n virtual\n onlyOwner\n {\n if (newPotentialOwner == address(0)) {\n revert NewOwnerIsZeroAddress();\n }\n potentialOwner = newPotentialOwner;\n emit PotentialOwnerUpdated(newPotentialOwner);\n }\n\n ///@notice Claim ownership of smart contract, after the current owner has initiated the process with transferOwnership\n function acceptOwnership() public virtual {\n address _potentialOwner = potentialOwner;\n if (msg.sender != _potentialOwner) {\n revert NotNextOwner();\n }\n delete potentialOwner;\n emit PotentialOwnerUpdated(address(0));\n _transferOwnership(_potentialOwner);\n }\n\n ///@notice cancel ownership transfer\n function cancelOwnershipTransfer() public virtual onlyOwner {\n delete potentialOwner;\n emit PotentialOwnerUpdated(address(0));\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if the sender is not the owner.\n */\n function _checkOwner() internal view virtual {\n if (_owner != msg.sender) {\n revert OnlyOwner();\n }\n }\n\n /**\n * @dev Leaves the contract without owner. It will not be possible to call\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n *\n * NOTE: Renouncing ownership will leave the contract without an owner,\n * thereby removing any functionality that is only available to the owner.\n */\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Internal function without access restriction.\n */\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n _owner = newOwner;\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n" }, "src/clones/ERC721ACloneable.sol": { "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.2\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport { IERC721A } from \"ERC721A/IERC721A.sol\";\n\nimport {\n Initializable\n} from \"openzeppelin-contracts-upgradeable/proxy/utils/Initializable.sol\";\n\n/**\n * @dev Interface of ERC721 token receiver.\n */\ninterface ERC721A__IERC721Receiver {\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n\n/**\n * @title ERC721A\n *\n * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)\n * Non-Fungible Token Standard, including the Metadata extension.\n * Optimized for lower gas during batch mints.\n *\n * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)\n * starting from `_startTokenId()`.\n *\n * Assumptions:\n *\n * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.\n * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).\n */\ncontract ERC721ACloneable is IERC721A, Initializable {\n // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364).\n struct TokenApprovalRef {\n address value;\n }\n\n // =============================================================\n // CONSTANTS\n // =============================================================\n\n // Mask of an entry in packed address data.\n uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;\n\n // The bit position of `numberMinted` in packed address data.\n uint256 private constant _BITPOS_NUMBER_MINTED = 64;\n\n // The bit position of `numberBurned` in packed address data.\n uint256 private constant _BITPOS_NUMBER_BURNED = 128;\n\n // The bit position of `aux` in packed address data.\n uint256 private constant _BITPOS_AUX = 192;\n\n // Mask of all 256 bits in packed address data except the 64 bits for `aux`.\n uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;\n\n // The bit position of `startTimestamp` in packed ownership.\n uint256 private constant _BITPOS_START_TIMESTAMP = 160;\n\n // The bit mask of the `burned` bit in packed ownership.\n uint256 private constant _BITMASK_BURNED = 1 << 224;\n\n // The bit position of the `nextInitialized` bit in packed ownership.\n uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;\n\n // The bit mask of the `nextInitialized` bit in packed ownership.\n uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;\n\n // The bit position of `extraData` in packed ownership.\n uint256 private constant _BITPOS_EXTRA_DATA = 232;\n\n // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.\n uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;\n\n // The mask of the lower 160 bits for addresses.\n uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;\n\n // The maximum `quantity` that can be minted with {_mintERC2309}.\n // This limit is to prevent overflows on the address data entries.\n // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}\n // is required to cause an overflow, which is unrealistic.\n uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;\n\n // The `Transfer` event signature is given by:\n // `keccak256(bytes(\"Transfer(address,address,uint256)\"))`.\n bytes32 private constant _TRANSFER_EVENT_SIGNATURE =\n 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;\n\n // =============================================================\n // STORAGE\n // =============================================================\n\n // The next token ID to be minted.\n uint256 private _currentIndex;\n\n // The number of tokens burned.\n uint256 private _burnCounter;\n\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Mapping from token ID to ownership details\n // An empty struct value does not necessarily mean the token is unowned.\n // See {_packedOwnershipOf} implementation for details.\n //\n // Bits Layout:\n // - [0..159] `addr`\n // - [160..223] `startTimestamp`\n // - [224] `burned`\n // - [225] `nextInitialized`\n // - [232..255] `extraData`\n mapping(uint256 => uint256) private _packedOwnerships;\n\n // Mapping owner address to address data.\n //\n // Bits Layout:\n // - [0..63] `balance`\n // - [64..127] `numberMinted`\n // - [128..191] `numberBurned`\n // - [192..255] `aux`\n mapping(address => uint256) private _packedAddressData;\n\n // Mapping from token ID to approved address.\n mapping(uint256 => TokenApprovalRef) private _tokenApprovals;\n\n // Mapping from owner to operator approvals\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n // =============================================================\n // CONSTRUCTOR\n // =============================================================\n\n function __ERC721ACloneable__init(\n string memory name_,\n string memory symbol_\n ) internal onlyInitializing {\n _name = name_;\n _symbol = symbol_;\n _currentIndex = _startTokenId();\n }\n\n // =============================================================\n // TOKEN COUNTING OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the starting token ID.\n * To change the starting token ID, please override this function.\n */\n function _startTokenId() internal view virtual returns (uint256) {\n return 0;\n }\n\n /**\n * @dev Returns the next token ID to be minted.\n */\n function _nextTokenId() internal view virtual returns (uint256) {\n return _currentIndex;\n }\n\n /**\n * @dev Returns the total number of tokens in existence.\n * Burned tokens will reduce the count.\n * To get the total number of tokens minted, please see {_totalMinted}.\n */\n function totalSupply() public view virtual override returns (uint256) {\n // Counter underflow is impossible as _burnCounter cannot be incremented\n // more than `_currentIndex - _startTokenId()` times.\n unchecked {\n return _currentIndex - _burnCounter - _startTokenId();\n }\n }\n\n /**\n * @dev Returns the total amount of tokens minted in the contract.\n */\n function _totalMinted() internal view virtual returns (uint256) {\n // Counter underflow is impossible as `_currentIndex` does not decrement,\n // and it is initialized to `_startTokenId()`.\n unchecked {\n return _currentIndex - _startTokenId();\n }\n }\n\n /**\n * @dev Returns the total number of tokens burned.\n */\n function _totalBurned() internal view virtual returns (uint256) {\n return _burnCounter;\n }\n\n // =============================================================\n // ADDRESS DATA OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the number of tokens in `owner`'s account.\n */\n function balanceOf(address owner)\n public\n view\n virtual\n override\n returns (uint256)\n {\n if (owner == address(0)) revert BalanceQueryForZeroAddress();\n return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;\n }\n\n /**\n * Returns the number of tokens minted by `owner`.\n */\n function _numberMinted(address owner) internal view returns (uint256) {\n return\n (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) &\n _BITMASK_ADDRESS_DATA_ENTRY;\n }\n\n /**\n * Returns the number of tokens burned by or on behalf of `owner`.\n */\n function _numberBurned(address owner) internal view returns (uint256) {\n return\n (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) &\n _BITMASK_ADDRESS_DATA_ENTRY;\n }\n\n /**\n * Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).\n */\n function _getAux(address owner) internal view returns (uint64) {\n return uint64(_packedAddressData[owner] >> _BITPOS_AUX);\n }\n\n /**\n * Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).\n * If there are multiple variables, please pack them into a uint64.\n */\n function _setAux(address owner, uint64 aux) internal virtual {\n uint256 packed = _packedAddressData[owner];\n uint256 auxCasted;\n // Cast `aux` with assembly to avoid redundant masking.\n assembly {\n auxCasted := aux\n }\n packed =\n (packed & _BITMASK_AUX_COMPLEMENT) |\n (auxCasted << _BITPOS_AUX);\n _packedAddressData[owner] = packed;\n }\n\n // =============================================================\n // IERC165\n // =============================================================\n\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30000 gas.\n */\n function supportsInterface(bytes4 interfaceId)\n public\n view\n virtual\n override\n returns (bool)\n {\n // The interface IDs are constants representing the first 4 bytes\n // of the XOR of all function selectors in the interface.\n // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)\n // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)\n return\n interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.\n interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.\n interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.\n }\n\n // =============================================================\n // IERC721Metadata\n // =============================================================\n\n /**\n * @dev Returns the token collection name.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId)\n public\n view\n virtual\n override\n returns (string memory)\n {\n if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\n\n string memory baseURI = _baseURI();\n return\n bytes(baseURI).length != 0\n ? string(abi.encodePacked(baseURI, _toString(tokenId)))\n : \"\";\n }\n\n /**\n * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n * by default, it can be overridden in child contracts.\n */\n function _baseURI() internal view virtual returns (string memory) {\n return \"\";\n }\n\n // =============================================================\n // OWNERSHIPS OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId)\n public\n view\n virtual\n override\n returns (address)\n {\n return address(uint160(_packedOwnershipOf(tokenId)));\n }\n\n /**\n * @dev Gas spent here starts off proportional to the maximum mint batch size.\n * It gradually moves to O(1) as tokens get transferred around over time.\n */\n function _ownershipOf(uint256 tokenId)\n internal\n view\n virtual\n returns (TokenOwnership memory)\n {\n return _unpackedOwnership(_packedOwnershipOf(tokenId));\n }\n\n /**\n * @dev Returns the unpacked `TokenOwnership` struct at `index`.\n */\n function _ownershipAt(uint256 index)\n internal\n view\n virtual\n returns (TokenOwnership memory)\n {\n return _unpackedOwnership(_packedOwnerships[index]);\n }\n\n /**\n * @dev Initializes the ownership slot minted at `index` for efficiency purposes.\n */\n function _initializeOwnershipAt(uint256 index) internal virtual {\n if (_packedOwnerships[index] == 0) {\n _packedOwnerships[index] = _packedOwnershipOf(index);\n }\n }\n\n /**\n * Returns the packed ownership data of `tokenId`.\n */\n function _packedOwnershipOf(uint256 tokenId)\n private\n view\n returns (uint256)\n {\n uint256 curr = tokenId;\n\n unchecked {\n if (_startTokenId() <= curr) {\n if (curr < _currentIndex) {\n uint256 packed = _packedOwnerships[curr];\n // If not burned.\n if (packed & _BITMASK_BURNED == 0) {\n // Invariant:\n // There will always be an initialized ownership slot\n // (i.e. `ownership.addr != address(0) && ownership.burned == false`)\n // before an unintialized ownership slot\n // (i.e. `ownership.addr == address(0) && ownership.burned == false`)\n // Hence, `curr` will not underflow.\n //\n // We can directly compare the packed value.\n // If the address is zero, packed will be zero.\n while (packed == 0) {\n packed = _packedOwnerships[--curr];\n }\n return packed;\n }\n }\n }\n }\n revert OwnerQueryForNonexistentToken();\n }\n\n /**\n * @dev Returns the unpacked `TokenOwnership` struct from `packed`.\n */\n function _unpackedOwnership(uint256 packed)\n private\n pure\n returns (TokenOwnership memory ownership)\n {\n ownership.addr = address(uint160(packed));\n ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);\n ownership.burned = packed & _BITMASK_BURNED != 0;\n ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);\n }\n\n /**\n * @dev Packs ownership data into a single uint256.\n */\n function _packOwnershipData(address owner, uint256 flags)\n private\n view\n returns (uint256 result)\n {\n assembly {\n // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.\n owner := and(owner, _BITMASK_ADDRESS)\n // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.\n result := or(\n owner,\n or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags)\n )\n }\n }\n\n /**\n * @dev Returns the `nextInitialized` flag set if `quantity` equals 1.\n */\n function _nextInitializedFlag(uint256 quantity)\n private\n pure\n returns (uint256 result)\n {\n // For branchless setting of the `nextInitialized` flag.\n assembly {\n // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.\n result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))\n }\n }\n\n // =============================================================\n // APPROVAL OPERATIONS\n // =============================================================\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the\n * zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) public virtual override {\n address owner = ownerOf(tokenId);\n\n if (_msgSenderERC721A() != owner) {\n if (!isApprovedForAll(owner, _msgSenderERC721A())) {\n revert ApprovalCallerNotOwnerNorApproved();\n }\n }\n\n _tokenApprovals[tokenId].value = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId)\n public\n view\n virtual\n override\n returns (address)\n {\n if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();\n\n return _tokenApprovals[tokenId].value;\n }\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom}\n * for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool approved)\n public\n virtual\n override\n {\n _operatorApprovals[_msgSenderERC721A()][operator] = approved;\n emit ApprovalForAll(_msgSenderERC721A(), operator, approved);\n }\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address owner, address operator)\n public\n view\n virtual\n override\n returns (bool)\n {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Returns whether `tokenId` exists.\n *\n * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n *\n * Tokens start existing when they are minted. See {_mint}.\n */\n function _exists(uint256 tokenId) internal view virtual returns (bool) {\n return\n _startTokenId() <= tokenId &&\n tokenId < _currentIndex && // If within bounds,\n _packedOwnerships[tokenId] & _BITMASK_BURNED == 0; // and not burned.\n }\n\n /**\n * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.\n */\n function _isSenderApprovedOrOwner(\n address approvedAddress,\n address owner,\n address msgSender\n ) private pure returns (bool result) {\n assembly {\n // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.\n owner := and(owner, _BITMASK_ADDRESS)\n // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.\n msgSender := and(msgSender, _BITMASK_ADDRESS)\n // `msgSender == owner || msgSender == approvedAddress`.\n result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))\n }\n }\n\n /**\n * @dev Returns the storage slot and value for the approved address of `tokenId`.\n */\n function _getApprovedSlotAndAddress(uint256 tokenId)\n private\n view\n returns (uint256 approvedAddressSlot, address approvedAddress)\n {\n TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId];\n // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`.\n assembly {\n approvedAddressSlot := tokenApproval.slot\n approvedAddress := sload(approvedAddressSlot)\n }\n }\n\n // =============================================================\n // TRANSFER OPERATIONS\n // =============================================================\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);\n\n if (address(uint160(prevOwnershipPacked)) != from)\n revert TransferFromIncorrectOwner();\n\n (\n uint256 approvedAddressSlot,\n address approvedAddress\n ) = _getApprovedSlotAndAddress(tokenId);\n\n // The nested ifs save around 20+ gas over a compound boolean condition.\n if (\n !_isSenderApprovedOrOwner(\n approvedAddress,\n from,\n _msgSenderERC721A()\n )\n ) {\n if (!isApprovedForAll(from, _msgSenderERC721A()))\n revert TransferCallerNotOwnerNorApproved();\n }\n\n if (to == address(0)) revert TransferToZeroAddress();\n\n _beforeTokenTransfers(from, to, tokenId, 1);\n\n // Clear approvals from the previous owner.\n assembly {\n if approvedAddress {\n // This is equivalent to `delete _tokenApprovals[tokenId]`.\n sstore(approvedAddressSlot, 0)\n }\n }\n\n // Underflow of the sender's balance is impossible because we check for\n // ownership above and the recipient's balance can't realistically overflow.\n // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.\n unchecked {\n // We can directly increment and decrement the balances.\n --_packedAddressData[from]; // Updates: `balance -= 1`.\n ++_packedAddressData[to]; // Updates: `balance += 1`.\n\n // Updates:\n // - `address` to the next owner.\n // - `startTimestamp` to the timestamp of transfering.\n // - `burned` to `false`.\n // - `nextInitialized` to `true`.\n _packedOwnerships[tokenId] = _packOwnershipData(\n to,\n _BITMASK_NEXT_INITIALIZED |\n _nextExtraData(from, to, prevOwnershipPacked)\n );\n\n // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .\n if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {\n uint256 nextTokenId = tokenId + 1;\n // If the next slot's address is zero and not burned (i.e. packed value is zero).\n if (_packedOwnerships[nextTokenId] == 0) {\n // If the next slot is within bounds.\n if (nextTokenId != _currentIndex) {\n // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.\n _packedOwnerships[nextTokenId] = prevOwnershipPacked;\n }\n }\n }\n }\n\n emit Transfer(from, to, tokenId);\n _afterTokenTransfers(from, to, tokenId, 1);\n }\n\n /**\n * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) public virtual override {\n transferFrom(from, to, tokenId);\n if (to.code.length != 0) {\n if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {\n revert TransferToNonERC721ReceiverImplementer();\n }\n }\n }\n\n /**\n * @dev Hook that is called before a set of serially-ordered token IDs\n * are about to be transferred. This includes minting.\n * And also called before burning one token.\n *\n * `startTokenId` - the first token ID to be transferred.\n * `quantity` - the amount to be transferred.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, `tokenId` will be burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _beforeTokenTransfers(\n address from,\n address to,\n uint256 startTokenId,\n uint256 quantity\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after a set of serially-ordered token IDs\n * have been transferred. This includes minting.\n * And also called after one token has been burned.\n *\n * `startTokenId` - the first token ID to be transferred.\n * `quantity` - the amount to be transferred.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been\n * transferred to `to`.\n * - When `from` is zero, `tokenId` has been minted for `to`.\n * - When `to` is zero, `tokenId` has been burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _afterTokenTransfers(\n address from,\n address to,\n uint256 startTokenId,\n uint256 quantity\n ) internal virtual {}\n\n /**\n * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.\n *\n * `from` - Previous owner of the given token ID.\n * `to` - Target address that will receive the token.\n * `tokenId` - Token ID to be transferred.\n * `_data` - Optional data to send along with the call.\n *\n * Returns whether the call correctly returned the expected magic value.\n */\n function _checkContractOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) private returns (bool) {\n try\n ERC721A__IERC721Receiver(to).onERC721Received(\n _msgSenderERC721A(),\n from,\n tokenId,\n _data\n )\n returns (bytes4 retval) {\n return\n retval ==\n ERC721A__IERC721Receiver(to).onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert TransferToNonERC721ReceiverImplementer();\n } else {\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n }\n\n // =============================================================\n // MINT OPERATIONS\n // =============================================================\n\n /**\n * @dev Mints `quantity` tokens and transfers them to `to`.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `quantity` must be greater than 0.\n *\n * Emits a {Transfer} event for each mint.\n */\n function _mint(address to, uint256 quantity) internal virtual {\n uint256 startTokenId = _currentIndex;\n if (quantity == 0) revert MintZeroQuantity();\n\n _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n // Overflows are incredibly unrealistic.\n // `balance` and `numberMinted` have a maximum limit of 2**64.\n // `tokenId` has a maximum limit of 2**256.\n unchecked {\n // Updates:\n // - `balance += quantity`.\n // - `numberMinted += quantity`.\n //\n // We can directly add to the `balance` and `numberMinted`.\n _packedAddressData[to] +=\n quantity *\n ((1 << _BITPOS_NUMBER_MINTED) | 1);\n\n // Updates:\n // - `address` to the owner.\n // - `startTimestamp` to the timestamp of minting.\n // - `burned` to `false`.\n // - `nextInitialized` to `quantity == 1`.\n _packedOwnerships[startTokenId] = _packOwnershipData(\n to,\n _nextInitializedFlag(quantity) |\n _nextExtraData(address(0), to, 0)\n );\n\n uint256 toMasked;\n uint256 end = startTokenId + quantity;\n\n // Use assembly to loop and emit the `Transfer` event for gas savings.\n // The duplicated `log4` removes an extra check and reduces stack juggling.\n // The assembly, together with the surrounding Solidity code, have been\n // delicately arranged to nudge the compiler into producing optimized opcodes.\n assembly {\n // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.\n toMasked := and(to, _BITMASK_ADDRESS)\n // Emit the `Transfer` event.\n log4(\n 0, // Start of data (0, since no data).\n 0, // End of data (0, since no data).\n _TRANSFER_EVENT_SIGNATURE, // Signature.\n 0, // `address(0)`.\n toMasked, // `to`.\n startTokenId // `tokenId`.\n )\n\n // The `iszero(eq(,))` check ensures that large values of `quantity`\n // that overflows uint256 will make the loop run out of gas.\n // The compiler will optimize the `iszero` away for performance.\n for {\n let tokenId := add(startTokenId, 1)\n } iszero(eq(tokenId, end)) {\n tokenId := add(tokenId, 1)\n } {\n // Emit the `Transfer` event. Similar to above.\n log4(0, 0, _TRANSFER_EVENT_SIGNATURE, 0, toMasked, tokenId)\n }\n }\n if (toMasked == 0) revert MintToZeroAddress();\n\n _currentIndex = end;\n }\n _afterTokenTransfers(address(0), to, startTokenId, quantity);\n }\n\n /**\n * @dev Mints `quantity` tokens and transfers them to `to`.\n *\n * This function is intended for efficient minting only during contract creation.\n *\n * It emits only one {ConsecutiveTransfer} as defined in\n * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309),\n * instead of a sequence of {Transfer} event(s).\n *\n * Calling this function outside of contract creation WILL make your contract\n * non-compliant with the ERC721 standard.\n * For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309\n * {ConsecutiveTransfer} event is only permissible during contract creation.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `quantity` must be greater than 0.\n *\n * Emits a {ConsecutiveTransfer} event.\n */\n function _mintERC2309(address to, uint256 quantity) internal virtual {\n uint256 startTokenId = _currentIndex;\n if (to == address(0)) revert MintToZeroAddress();\n if (quantity == 0) revert MintZeroQuantity();\n if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT)\n revert MintERC2309QuantityExceedsLimit();\n\n _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n // Overflows are unrealistic due to the above check for `quantity` to be below the limit.\n unchecked {\n // Updates:\n // - `balance += quantity`.\n // - `numberMinted += quantity`.\n //\n // We can directly add to the `balance` and `numberMinted`.\n _packedAddressData[to] +=\n quantity *\n ((1 << _BITPOS_NUMBER_MINTED) | 1);\n\n // Updates:\n // - `address` to the owner.\n // - `startTimestamp` to the timestamp of minting.\n // - `burned` to `false`.\n // - `nextInitialized` to `quantity == 1`.\n _packedOwnerships[startTokenId] = _packOwnershipData(\n to,\n _nextInitializedFlag(quantity) |\n _nextExtraData(address(0), to, 0)\n );\n\n emit ConsecutiveTransfer(\n startTokenId,\n startTokenId + quantity - 1,\n address(0),\n to\n );\n\n _currentIndex = startTokenId + quantity;\n }\n _afterTokenTransfers(address(0), to, startTokenId, quantity);\n }\n\n /**\n * @dev Safely mints `quantity` tokens and transfers them to `to`.\n *\n * Requirements:\n *\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called for each safe transfer.\n * - `quantity` must be greater than 0.\n *\n * See {_mint}.\n *\n * Emits a {Transfer} event for each mint.\n */\n function _safeMint(\n address to,\n uint256 quantity,\n bytes memory _data\n ) internal virtual {\n _mint(to, quantity);\n\n unchecked {\n if (to.code.length != 0) {\n uint256 end = _currentIndex;\n uint256 index = end - quantity;\n do {\n if (\n !_checkContractOnERC721Received(\n address(0),\n to,\n index++,\n _data\n )\n ) {\n revert TransferToNonERC721ReceiverImplementer();\n }\n } while (index < end);\n // Reentrancy protection.\n if (_currentIndex != end) revert();\n }\n }\n }\n\n /**\n * @dev Equivalent to `_safeMint(to, quantity, '')`.\n */\n function _safeMint(address to, uint256 quantity) internal virtual {\n _safeMint(to, quantity, \"\");\n }\n\n // =============================================================\n // BURN OPERATIONS\n // =============================================================\n\n /**\n * @dev Equivalent to `_burn(tokenId, false)`.\n */\n function _burn(uint256 tokenId) internal virtual {\n _burn(tokenId, false);\n }\n\n /**\n * @dev Destroys `tokenId`.\n * The approval is cleared when the token is burned.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits a {Transfer} event.\n */\n function _burn(uint256 tokenId, bool approvalCheck) internal virtual {\n uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);\n\n address from = address(uint160(prevOwnershipPacked));\n\n (\n uint256 approvedAddressSlot,\n address approvedAddress\n ) = _getApprovedSlotAndAddress(tokenId);\n\n if (approvalCheck) {\n // The nested ifs save around 20+ gas over a compound boolean condition.\n if (\n !_isSenderApprovedOrOwner(\n approvedAddress,\n from,\n _msgSenderERC721A()\n )\n ) {\n if (!isApprovedForAll(from, _msgSenderERC721A()))\n revert TransferCallerNotOwnerNorApproved();\n }\n }\n\n _beforeTokenTransfers(from, address(0), tokenId, 1);\n\n // Clear approvals from the previous owner.\n assembly {\n if approvedAddress {\n // This is equivalent to `delete _tokenApprovals[tokenId]`.\n sstore(approvedAddressSlot, 0)\n }\n }\n\n // Underflow of the sender's balance is impossible because we check for\n // ownership above and the recipient's balance can't realistically overflow.\n // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.\n unchecked {\n // Updates:\n // - `balance -= 1`.\n // - `numberBurned += 1`.\n //\n // We can directly decrement the balance, and increment the number burned.\n // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.\n _packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;\n\n // Updates:\n // - `address` to the last owner.\n // - `startTimestamp` to the timestamp of burning.\n // - `burned` to `true`.\n // - `nextInitialized` to `true`.\n _packedOwnerships[tokenId] = _packOwnershipData(\n from,\n (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) |\n _nextExtraData(from, address(0), prevOwnershipPacked)\n );\n\n // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .\n if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {\n uint256 nextTokenId = tokenId + 1;\n // If the next slot's address is zero and not burned (i.e. packed value is zero).\n if (_packedOwnerships[nextTokenId] == 0) {\n // If the next slot is within bounds.\n if (nextTokenId != _currentIndex) {\n // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.\n _packedOwnerships[nextTokenId] = prevOwnershipPacked;\n }\n }\n }\n }\n\n emit Transfer(from, address(0), tokenId);\n _afterTokenTransfers(from, address(0), tokenId, 1);\n\n // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.\n unchecked {\n _burnCounter++;\n }\n }\n\n // =============================================================\n // EXTRA DATA OPERATIONS\n // =============================================================\n\n /**\n * @dev Directly sets the extra data for the ownership data `index`.\n */\n function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {\n uint256 packed = _packedOwnerships[index];\n if (packed == 0) revert OwnershipNotInitializedForExtraData();\n uint256 extraDataCasted;\n // Cast `extraData` with assembly to avoid redundant masking.\n assembly {\n extraDataCasted := extraData\n }\n packed =\n (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) |\n (extraDataCasted << _BITPOS_EXTRA_DATA);\n _packedOwnerships[index] = packed;\n }\n\n /**\n * @dev Called during each token transfer to set the 24bit `extraData` field.\n * Intended to be overridden by the cosumer contract.\n *\n * `previousExtraData` - the value of `extraData` before transfer.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, `tokenId` will be burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _extraData(\n address from,\n address to,\n uint24 previousExtraData\n ) internal view virtual returns (uint24) {}\n\n /**\n * @dev Returns the next extra data for the packed ownership data.\n * The returned result is shifted into position.\n */\n function _nextExtraData(\n address from,\n address to,\n uint256 prevOwnershipPacked\n ) private view returns (uint256) {\n uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);\n return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;\n }\n\n // =============================================================\n // OTHER OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the message sender (defaults to `msg.sender`).\n *\n * If you are writing GSN compatible contracts, you need to override this function.\n */\n function _msgSenderERC721A() internal view virtual returns (address) {\n return msg.sender;\n }\n\n /**\n * @dev Converts a uint256 to its ASCII string decimal representation.\n */\n function _toString(uint256 value)\n internal\n pure\n virtual\n returns (string memory str)\n {\n assembly {\n // The maximum value of a uint256 contains 78 digits (1 byte per digit), but\n // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.\n // We will need 1 word for the trailing zeros padding, 1 word for the length,\n // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.\n let m := add(mload(0x40), 0xa0)\n // Update the free memory pointer to allocate.\n mstore(0x40, m)\n // Assign the `str` to the end.\n str := sub(m, 0x20)\n // Zeroize the slot after the string.\n mstore(str, 0)\n\n // Cache the end of the memory to calculate the length later.\n let end := str\n\n // We write the string from rightmost digit to leftmost digit.\n // The following is essentially a do-while loop that also handles the zero case.\n // prettier-ignore\n for { let temp := value } 1 {} {\n str := sub(str, 1)\n // Write the character to the pointer.\n // The ASCII index of the '0' character is 48.\n mstore8(str, add(48, mod(temp, 10)))\n // Keep dividing `temp` until zero.\n temp := div(temp, 10)\n // prettier-ignore\n if iszero(temp) { break }\n }\n\n let length := sub(end, str)\n // Move the pointer 32 bytes leftwards to make room for the length.\n str := sub(str, 0x20)\n // Store the length.\n mstore(str, length)\n }\n }\n}\n" }, "src/clones/ERC721ContractMetadataCloneable.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n ISeaDropTokenContractMetadata\n} from \"../interfaces/ISeaDropTokenContractMetadata.sol\";\n\nimport { ERC721ACloneable } from \"./ERC721ACloneable.sol\";\n\nimport { TwoStepOwnable } from \"utility-contracts/TwoStepOwnable.sol\";\n\nimport { IERC2981 } from \"openzeppelin-contracts/interfaces/IERC2981.sol\";\n\nimport {\n IERC165\n} from \"openzeppelin-contracts/utils/introspection/IERC165.sol\";\n\n/**\n * @title ERC721ContractMetadataCloneable\n * @author James Wenzel (emo.eth)\n * @author Ryan Ghods (ralxz.eth)\n * @author Stephan Min (stephanm.eth)\n * @notice ERC721ContractMetadata is a token contract that extends ERC721A\n * with additional metadata and ownership capabilities.\n */\ncontract ERC721ContractMetadataCloneable is\n ERC721ACloneable,\n TwoStepOwnable,\n ISeaDropTokenContractMetadata\n{\n /// @notice Track the max supply.\n uint256 _maxSupply;\n\n /// @notice Track the base URI for token metadata.\n string _tokenBaseURI;\n\n /// @notice Track the contract URI for contract metadata.\n string _contractURI;\n\n /// @notice Track the provenance hash for guaranteeing metadata order\n /// for random reveals.\n bytes32 _provenanceHash;\n\n /// @notice Track the royalty info: address to receive royalties, and\n /// royalty basis points.\n RoyaltyInfo _royaltyInfo;\n\n /**\n * @dev Reverts if the sender is not the owner or the contract itself.\n * This function is inlined instead of being a modifier\n * to save contract space from being inlined N times.\n */\n function _onlyOwnerOrSelf() internal view {\n if (\n _cast(msg.sender == owner()) | _cast(msg.sender == address(this)) ==\n 0\n ) {\n revert OnlyOwner();\n }\n }\n\n /**\n * @notice Sets the base URI for the token metadata and emits an event.\n *\n * @param newBaseURI The new base URI to set.\n */\n function setBaseURI(string calldata newBaseURI) external override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Set the new base URI.\n _tokenBaseURI = newBaseURI;\n\n // Emit an event with the update.\n if (totalSupply() != 0) {\n emit BatchMetadataUpdate(1, _nextTokenId() - 1);\n }\n }\n\n /**\n * @notice Sets the contract URI for contract metadata.\n *\n * @param newContractURI The new contract URI.\n */\n function setContractURI(string calldata newContractURI) external override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Set the new contract URI.\n _contractURI = newContractURI;\n\n // Emit an event with the update.\n emit ContractURIUpdated(newContractURI);\n }\n\n /**\n * @notice Emit an event notifying metadata updates for\n * a range of token ids, according to EIP-4906.\n *\n * @param fromTokenId The start token id.\n * @param toTokenId The end token id.\n */\n function emitBatchMetadataUpdate(uint256 fromTokenId, uint256 toTokenId)\n external\n {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Emit an event with the update.\n emit BatchMetadataUpdate(fromTokenId, toTokenId);\n }\n\n /**\n * @notice Sets the max token supply and emits an event.\n *\n * @param newMaxSupply The new max supply to set.\n */\n function setMaxSupply(uint256 newMaxSupply) external {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the max supply does not exceed the maximum value of uint64.\n if (newMaxSupply > 2**64 - 1) {\n revert CannotExceedMaxSupplyOfUint64(newMaxSupply);\n }\n\n // Set the new max supply.\n _maxSupply = newMaxSupply;\n\n // Emit an event with the update.\n emit MaxSupplyUpdated(newMaxSupply);\n }\n\n /**\n * @notice Sets the provenance hash and emits an event.\n *\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it has not been\n * modified after mint started.\n *\n * This function will revert after the first item has been minted.\n *\n * @param newProvenanceHash The new provenance hash to set.\n */\n function setProvenanceHash(bytes32 newProvenanceHash) external {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Revert if any items have been minted.\n if (_totalMinted() > 0) {\n revert ProvenanceHashCannotBeSetAfterMintStarted();\n }\n\n // Keep track of the old provenance hash for emitting with the event.\n bytes32 oldProvenanceHash = _provenanceHash;\n\n // Set the new provenance hash.\n _provenanceHash = newProvenanceHash;\n\n // Emit an event with the update.\n emit ProvenanceHashUpdated(oldProvenanceHash, newProvenanceHash);\n }\n\n /**\n * @notice Sets the address and basis points for royalties.\n *\n * @param newInfo The struct to configure royalties.\n */\n function setRoyaltyInfo(RoyaltyInfo calldata newInfo) external {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Revert if the new royalty address is the zero address.\n if (newInfo.royaltyAddress == address(0)) {\n revert RoyaltyAddressCannotBeZeroAddress();\n }\n\n // Revert if the new basis points is greater than 10_000.\n if (newInfo.royaltyBps > 10_000) {\n revert InvalidRoyaltyBasisPoints(newInfo.royaltyBps);\n }\n\n // Set the new royalty info.\n _royaltyInfo = newInfo;\n\n // Emit an event with the updated params.\n emit RoyaltyInfoUpdated(newInfo.royaltyAddress, newInfo.royaltyBps);\n }\n\n /**\n * @notice Returns the base URI for token metadata.\n */\n function baseURI() external view override returns (string memory) {\n return _baseURI();\n }\n\n /**\n * @notice Returns the base URI for the contract, which ERC721A uses\n * to return tokenURI.\n */\n function _baseURI() internal view virtual override returns (string memory) {\n return _tokenBaseURI;\n }\n\n /**\n * @notice Returns the contract URI for contract metadata.\n */\n function contractURI() external view override returns (string memory) {\n return _contractURI;\n }\n\n /**\n * @notice Returns the max token supply.\n */\n function maxSupply() public view returns (uint256) {\n return _maxSupply;\n }\n\n /**\n * @notice Returns the provenance hash.\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it is unmodified\n * after mint has started.\n */\n function provenanceHash() external view override returns (bytes32) {\n return _provenanceHash;\n }\n\n /**\n * @notice Returns the address that receives royalties.\n */\n function royaltyAddress() external view returns (address) {\n return _royaltyInfo.royaltyAddress;\n }\n\n /**\n * @notice Returns the royalty basis points out of 10_000.\n */\n function royaltyBasisPoints() external view returns (uint256) {\n return _royaltyInfo.royaltyBps;\n }\n\n /**\n * @notice Called with the sale price to determine how much royalty\n * is owed and to whom.\n *\n * @ param _tokenId The NFT asset queried for royalty information.\n * @param _salePrice The sale price of the NFT asset specified by\n * _tokenId.\n *\n * @return receiver Address of who should be sent the royalty payment.\n * @return royaltyAmount The royalty payment amount for _salePrice.\n */\n function royaltyInfo(\n uint256,\n /* _tokenId */\n uint256 _salePrice\n ) external view returns (address receiver, uint256 royaltyAmount) {\n // Put the royalty info on the stack for more efficient access.\n RoyaltyInfo storage info = _royaltyInfo;\n\n // Set the royalty amount to the sale price times the royalty basis\n // points divided by 10_000.\n royaltyAmount = (_salePrice * info.royaltyBps) / 10_000;\n\n // Set the receiver of the royalty.\n receiver = info.royaltyAddress;\n }\n\n /**\n * @notice Returns whether the interface is supported.\n *\n * @param interfaceId The interface id to check against.\n */\n function supportsInterface(bytes4 interfaceId)\n public\n view\n virtual\n override(IERC165, ERC721ACloneable)\n returns (bool)\n {\n return\n interfaceId == type(IERC2981).interfaceId ||\n interfaceId == 0x49064906 || // ERC-4906\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev Internal pure function to cast a `bool` value to a `uint256` value.\n *\n * @param b The `bool` value to cast.\n *\n * @return u The `uint256` value.\n */\n function _cast(bool b) internal pure returns (uint256 u) {\n assembly {\n u := b\n }\n }\n}\n" }, "src/clones/ERC721SeaDropCloneable.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n ERC721ContractMetadataCloneable,\n ISeaDropTokenContractMetadata\n} from \"./ERC721ContractMetadataCloneable.sol\";\n\nimport {\n INonFungibleSeaDropToken\n} from \"../interfaces/INonFungibleSeaDropToken.sol\";\n\nimport { ISeaDrop } from \"../interfaces/ISeaDrop.sol\";\n\nimport {\n AllowListData,\n PublicDrop,\n TokenGatedDropStage,\n SignedMintValidationParams\n} from \"../lib/SeaDropStructs.sol\";\n\nimport {\n ERC721SeaDropStructsErrorsAndEvents\n} from \"../lib/ERC721SeaDropStructsErrorsAndEvents.sol\";\n\nimport { ERC721ACloneable } from \"./ERC721ACloneable.sol\";\n\nimport {\n ReentrancyGuardUpgradeable\n} from \"openzeppelin-contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol\";\n\nimport {\n IERC165\n} from \"openzeppelin-contracts/utils/introspection/IERC165.sol\";\n\nimport {\n DefaultOperatorFiltererUpgradeable\n} from \"operator-filter-registry/upgradeable/DefaultOperatorFiltererUpgradeable.sol\";\n\n/**\n * @title ERC721SeaDrop\n * @author James Wenzel (emo.eth)\n * @author Ryan Ghods (ralxz.eth)\n * @author Stephan Min (stephanm.eth)\n * @notice ERC721SeaDrop is a token contract that contains methods\n * to properly interact with SeaDrop.\n */\ncontract ERC721SeaDropCloneable is\n ERC721ContractMetadataCloneable,\n INonFungibleSeaDropToken,\n ERC721SeaDropStructsErrorsAndEvents,\n ReentrancyGuardUpgradeable,\n DefaultOperatorFiltererUpgradeable\n{\n /// @notice Track the allowed SeaDrop addresses.\n mapping(address => bool) internal _allowedSeaDrop;\n\n /// @notice Track the enumerated allowed SeaDrop addresses.\n address[] internal _enumeratedAllowedSeaDrop;\n\n /**\n * @dev Reverts if not an allowed SeaDrop contract.\n * This function is inlined instead of being a modifier\n * to save contract space from being inlined N times.\n *\n * @param seaDrop The SeaDrop address to check if allowed.\n */\n function _onlyAllowedSeaDrop(address seaDrop) internal view {\n if (_allowedSeaDrop[seaDrop] != true) {\n revert OnlyAllowedSeaDrop();\n }\n }\n\n /**\n * @notice Deploy the token contract with its name, symbol,\n * and allowed SeaDrop addresses.\n */\n function initialize(\n string calldata __name,\n string calldata __symbol,\n address[] calldata allowedSeaDrop,\n address initialOwner\n ) public initializer {\n __ERC721ACloneable__init(__name, __symbol);\n __ReentrancyGuard_init();\n __DefaultOperatorFilterer_init();\n _updateAllowedSeaDrop(allowedSeaDrop);\n _transferOwnership(initialOwner);\n emit SeaDropTokenDeployed();\n }\n\n /**\n * @notice Update the allowed SeaDrop contracts.\n * Only the owner or administrator can use this function.\n *\n * @param allowedSeaDrop The allowed SeaDrop addresses.\n */\n function updateAllowedSeaDrop(address[] calldata allowedSeaDrop)\n external\n virtual\n override\n onlyOwner\n {\n _updateAllowedSeaDrop(allowedSeaDrop);\n }\n\n /**\n * @notice Internal function to update the allowed SeaDrop contracts.\n *\n * @param allowedSeaDrop The allowed SeaDrop addresses.\n */\n function _updateAllowedSeaDrop(address[] calldata allowedSeaDrop) internal {\n // Put the length on the stack for more efficient access.\n uint256 enumeratedAllowedSeaDropLength = _enumeratedAllowedSeaDrop\n .length;\n uint256 allowedSeaDropLength = allowedSeaDrop.length;\n\n // Reset the old mapping.\n for (uint256 i = 0; i < enumeratedAllowedSeaDropLength; ) {\n _allowedSeaDrop[_enumeratedAllowedSeaDrop[i]] = false;\n unchecked {\n ++i;\n }\n }\n\n // Set the new mapping for allowed SeaDrop contracts.\n for (uint256 i = 0; i < allowedSeaDropLength; ) {\n _allowedSeaDrop[allowedSeaDrop[i]] = true;\n unchecked {\n ++i;\n }\n }\n\n // Set the enumeration.\n _enumeratedAllowedSeaDrop = allowedSeaDrop;\n\n // Emit an event for the update.\n emit AllowedSeaDropUpdated(allowedSeaDrop);\n }\n\n /**\n * @dev Overrides the `_startTokenId` function from ERC721A\n * to start at token id `1`.\n *\n * This is to avoid future possible problems since `0` is usually\n * used to signal values that have not been set or have been removed.\n */\n function _startTokenId() internal view virtual override returns (uint256) {\n return 1;\n }\n\n /**\n * @dev Overrides the `tokenURI()` function from ERC721A\n * to return just the base URI if it is implied to not be a directory.\n *\n * This is to help with ERC721 contracts in which the same token URI\n * is desired for each token, such as when the tokenURI is 'unrevealed'.\n */\n function tokenURI(uint256 tokenId)\n public\n view\n virtual\n override\n returns (string memory)\n {\n if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\n\n string memory baseURI = _baseURI();\n\n // Exit early if the baseURI is empty.\n if (bytes(baseURI).length == 0) {\n return \"\";\n }\n\n // Check if the last character in baseURI is a slash.\n if (bytes(baseURI)[bytes(baseURI).length - 1] != bytes(\"/\")[0]) {\n return baseURI;\n }\n\n return string(abi.encodePacked(baseURI, _toString(tokenId)));\n }\n\n /**\n * @notice Mint tokens, restricted to the SeaDrop contract.\n *\n * @dev NOTE: If a token registers itself with multiple SeaDrop\n * contracts, the implementation of this function should guard\n * against reentrancy. If the implementing token uses\n * _safeMint(), or a feeRecipient with a malicious receive() hook\n * is specified, the token or fee recipients may be able to execute\n * another mint in the same transaction via a separate SeaDrop\n * contract.\n * This is dangerous if an implementing token does not correctly\n * update the minterNumMinted and currentTotalSupply values before\n * transferring minted tokens, as SeaDrop references these values\n * to enforce token limits on a per-wallet and per-stage basis.\n *\n * ERC721A tracks these values automatically, but this note and\n * nonReentrant modifier are left here to encourage best-practices\n * when referencing this contract.\n *\n * @param minter The address to mint to.\n * @param quantity The number of tokens to mint.\n */\n function mintSeaDrop(address minter, uint256 quantity)\n external\n virtual\n override\n nonReentrant\n {\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(msg.sender);\n\n // Extra safety check to ensure the max supply is not exceeded.\n if (_totalMinted() + quantity > maxSupply()) {\n revert MintQuantityExceedsMaxSupply(\n _totalMinted() + quantity,\n maxSupply()\n );\n }\n\n // Mint the quantity of tokens to the minter.\n _safeMint(minter, quantity);\n }\n\n /**\n * @notice Update the public drop data for this nft contract on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param publicDrop The public drop data.\n */\n function updatePublicDrop(\n address seaDropImpl,\n PublicDrop calldata publicDrop\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the public drop data on SeaDrop.\n ISeaDrop(seaDropImpl).updatePublicDrop(publicDrop);\n }\n\n /**\n * @notice Update the allow list data for this nft contract on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param allowListData The allow list data.\n */\n function updateAllowList(\n address seaDropImpl,\n AllowListData calldata allowListData\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the allow list on SeaDrop.\n ISeaDrop(seaDropImpl).updateAllowList(allowListData);\n }\n\n /**\n * @notice Update the token gated drop stage data for this nft contract\n * on SeaDrop.\n * Only the owner can use this function.\n *\n * Note: If two INonFungibleSeaDropToken tokens are doing\n * simultaneous token gated drop promotions for each other,\n * they can be minted by the same actor until\n * `maxTokenSupplyForStage` is reached. Please ensure the\n * `allowedNftToken` is not running an active drop during the\n * `dropStage` time period.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param allowedNftToken The allowed nft token.\n * @param dropStage The token gated drop stage data.\n */\n function updateTokenGatedDrop(\n address seaDropImpl,\n address allowedNftToken,\n TokenGatedDropStage calldata dropStage\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the token gated drop stage.\n ISeaDrop(seaDropImpl).updateTokenGatedDrop(allowedNftToken, dropStage);\n }\n\n /**\n * @notice Update the drop URI for this nft contract on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param dropURI The new drop URI.\n */\n function updateDropURI(address seaDropImpl, string calldata dropURI)\n external\n virtual\n override\n {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the drop URI.\n ISeaDrop(seaDropImpl).updateDropURI(dropURI);\n }\n\n /**\n * @notice Update the creator payout address for this nft contract on\n * SeaDrop.\n * Only the owner can set the creator payout address.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param payoutAddress The new payout address.\n */\n function updateCreatorPayoutAddress(\n address seaDropImpl,\n address payoutAddress\n ) external {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the creator payout address.\n ISeaDrop(seaDropImpl).updateCreatorPayoutAddress(payoutAddress);\n }\n\n /**\n * @notice Update the allowed fee recipient for this nft contract\n * on SeaDrop.\n * Only the owner can set the allowed fee recipient.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param feeRecipient The new fee recipient.\n * @param allowed If the fee recipient is allowed.\n */\n function updateAllowedFeeRecipient(\n address seaDropImpl,\n address feeRecipient,\n bool allowed\n ) external virtual {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the allowed fee recipient.\n ISeaDrop(seaDropImpl).updateAllowedFeeRecipient(feeRecipient, allowed);\n }\n\n /**\n * @notice Update the server-side signers for this nft contract\n * on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param signer The signer to update.\n * @param signedMintValidationParams Minimum and maximum parameters to\n * enforce for signed mints.\n */\n function updateSignedMintValidationParams(\n address seaDropImpl,\n address signer,\n SignedMintValidationParams memory signedMintValidationParams\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the signer.\n ISeaDrop(seaDropImpl).updateSignedMintValidationParams(\n signer,\n signedMintValidationParams\n );\n }\n\n /**\n * @notice Update the allowed payers for this nft contract on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param payer The payer to update.\n * @param allowed Whether the payer is allowed.\n */\n function updatePayer(\n address seaDropImpl,\n address payer,\n bool allowed\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the payer.\n ISeaDrop(seaDropImpl).updatePayer(payer, allowed);\n }\n\n /**\n * @notice Returns a set of mint stats for the address.\n * This assists SeaDrop in enforcing maxSupply,\n * maxTotalMintableByWallet, and maxTokenSupplyForStage checks.\n *\n * @dev NOTE: Implementing contracts should always update these numbers\n * before transferring any tokens with _safeMint() to mitigate\n * consequences of malicious onERC721Received() hooks.\n *\n * @param minter The minter address.\n */\n function getMintStats(address minter)\n external\n view\n override\n returns (\n uint256 minterNumMinted,\n uint256 currentTotalSupply,\n uint256 maxSupply\n )\n {\n minterNumMinted = _numberMinted(minter);\n currentTotalSupply = _totalMinted();\n maxSupply = _maxSupply;\n }\n\n /**\n * @notice Returns whether the interface is supported.\n *\n * @param interfaceId The interface id to check against.\n */\n function supportsInterface(bytes4 interfaceId)\n public\n view\n virtual\n override(IERC165, ERC721ContractMetadataCloneable)\n returns (bool)\n {\n return\n interfaceId == type(INonFungibleSeaDropToken).interfaceId ||\n interfaceId == type(ISeaDropTokenContractMetadata).interfaceId ||\n // ERC721ContractMetadata returns supportsInterface true for\n // EIP-2981\n // ERC721A returns supportsInterface true for\n // ERC165, ERC721, ERC721Metadata\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom}\n * for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n * - The `operator` must be allowed.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool approved)\n public\n override\n onlyAllowedOperatorApproval(operator)\n {\n super.setApprovalForAll(operator, approved);\n }\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the\n * zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n * - The `operator` mut be allowed.\n *\n * Emits an {Approval} event.\n */\n function approve(address operator, uint256 tokenId)\n public\n override\n onlyAllowedOperatorApproval(operator)\n {\n super.approve(operator, tokenId);\n }\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n * - The operator must be allowed.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n * - The operator must be allowed.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId, data);\n }\n\n /**\n * @notice Configure multiple properties at a time.\n *\n * Note: The individual configure methods should be used\n * to unset or reset any properties to zero, as this method\n * will ignore zero-value properties in the config struct.\n *\n * @param config The configuration struct.\n */\n function multiConfigure(MultiConfigureStruct calldata config)\n external\n onlyOwner\n {\n if (config.maxSupply > 0) {\n this.setMaxSupply(config.maxSupply);\n }\n if (bytes(config.baseURI).length != 0) {\n this.setBaseURI(config.baseURI);\n }\n if (bytes(config.contractURI).length != 0) {\n this.setContractURI(config.contractURI);\n }\n if (\n _cast(config.publicDrop.startTime != 0) |\n _cast(config.publicDrop.endTime != 0) ==\n 1\n ) {\n this.updatePublicDrop(config.seaDropImpl, config.publicDrop);\n }\n if (bytes(config.dropURI).length != 0) {\n this.updateDropURI(config.seaDropImpl, config.dropURI);\n }\n if (config.allowListData.merkleRoot != bytes32(0)) {\n this.updateAllowList(config.seaDropImpl, config.allowListData);\n }\n if (config.creatorPayoutAddress != address(0)) {\n this.updateCreatorPayoutAddress(\n config.seaDropImpl,\n config.creatorPayoutAddress\n );\n }\n if (config.provenanceHash != bytes32(0)) {\n this.setProvenanceHash(config.provenanceHash);\n }\n if (config.allowedFeeRecipients.length > 0) {\n for (uint256 i = 0; i < config.allowedFeeRecipients.length; ) {\n this.updateAllowedFeeRecipient(\n config.seaDropImpl,\n config.allowedFeeRecipients[i],\n true\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.disallowedFeeRecipients.length > 0) {\n for (uint256 i = 0; i < config.disallowedFeeRecipients.length; ) {\n this.updateAllowedFeeRecipient(\n config.seaDropImpl,\n config.disallowedFeeRecipients[i],\n false\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.allowedPayers.length > 0) {\n for (uint256 i = 0; i < config.allowedPayers.length; ) {\n this.updatePayer(\n config.seaDropImpl,\n config.allowedPayers[i],\n true\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.disallowedPayers.length > 0) {\n for (uint256 i = 0; i < config.disallowedPayers.length; ) {\n this.updatePayer(\n config.seaDropImpl,\n config.disallowedPayers[i],\n false\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.tokenGatedDropStages.length > 0) {\n if (\n config.tokenGatedDropStages.length !=\n config.tokenGatedAllowedNftTokens.length\n ) {\n revert TokenGatedMismatch();\n }\n for (uint256 i = 0; i < config.tokenGatedDropStages.length; ) {\n this.updateTokenGatedDrop(\n config.seaDropImpl,\n config.tokenGatedAllowedNftTokens[i],\n config.tokenGatedDropStages[i]\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.disallowedTokenGatedAllowedNftTokens.length > 0) {\n for (\n uint256 i = 0;\n i < config.disallowedTokenGatedAllowedNftTokens.length;\n\n ) {\n TokenGatedDropStage memory emptyStage;\n this.updateTokenGatedDrop(\n config.seaDropImpl,\n config.disallowedTokenGatedAllowedNftTokens[i],\n emptyStage\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.signedMintValidationParams.length > 0) {\n if (\n config.signedMintValidationParams.length !=\n config.signers.length\n ) {\n revert SignersMismatch();\n }\n for (\n uint256 i = 0;\n i < config.signedMintValidationParams.length;\n\n ) {\n this.updateSignedMintValidationParams(\n config.seaDropImpl,\n config.signers[i],\n config.signedMintValidationParams[i]\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.disallowedSigners.length > 0) {\n for (uint256 i = 0; i < config.disallowedSigners.length; ) {\n SignedMintValidationParams memory emptyParams;\n this.updateSignedMintValidationParams(\n config.seaDropImpl,\n config.disallowedSigners[i],\n emptyParams\n );\n unchecked {\n ++i;\n }\n }\n }\n }\n}\n" }, "src/interfaces/INonFungibleSeaDropToken.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n ISeaDropTokenContractMetadata\n} from \"./ISeaDropTokenContractMetadata.sol\";\n\nimport {\n AllowListData,\n PublicDrop,\n TokenGatedDropStage,\n SignedMintValidationParams\n} from \"../lib/SeaDropStructs.sol\";\n\ninterface INonFungibleSeaDropToken is ISeaDropTokenContractMetadata {\n /**\n * @dev Revert with an error if a contract is not an allowed\n * SeaDrop address.\n */\n error OnlyAllowedSeaDrop();\n\n /**\n * @dev Emit an event when allowed SeaDrop contracts are updated.\n */\n event AllowedSeaDropUpdated(address[] allowedSeaDrop);\n\n /**\n * @notice Update the allowed SeaDrop contracts.\n * Only the owner or administrator can use this function.\n *\n * @param allowedSeaDrop The allowed SeaDrop addresses.\n */\n function updateAllowedSeaDrop(address[] calldata allowedSeaDrop) external;\n\n /**\n * @notice Mint tokens, restricted to the SeaDrop contract.\n *\n * @dev NOTE: If a token registers itself with multiple SeaDrop\n * contracts, the implementation of this function should guard\n * against reentrancy. If the implementing token uses\n * _safeMint(), or a feeRecipient with a malicious receive() hook\n * is specified, the token or fee recipients may be able to execute\n * another mint in the same transaction via a separate SeaDrop\n * contract.\n * This is dangerous if an implementing token does not correctly\n * update the minterNumMinted and currentTotalSupply values before\n * transferring minted tokens, as SeaDrop references these values\n * to enforce token limits on a per-wallet and per-stage basis.\n *\n * @param minter The address to mint to.\n * @param quantity The number of tokens to mint.\n */\n function mintSeaDrop(address minter, uint256 quantity) external;\n\n /**\n * @notice Returns a set of mint stats for the address.\n * This assists SeaDrop in enforcing maxSupply,\n * maxTotalMintableByWallet, and maxTokenSupplyForStage checks.\n *\n * @dev NOTE: Implementing contracts should always update these numbers\n * before transferring any tokens with _safeMint() to mitigate\n * consequences of malicious onERC721Received() hooks.\n *\n * @param minter The minter address.\n */\n function getMintStats(address minter)\n external\n view\n returns (\n uint256 minterNumMinted,\n uint256 currentTotalSupply,\n uint256 maxSupply\n );\n\n /**\n * @notice Update the public drop data for this nft contract on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * The administrator can only update `feeBps`.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param publicDrop The public drop data.\n */\n function updatePublicDrop(\n address seaDropImpl,\n PublicDrop calldata publicDrop\n ) external;\n\n /**\n * @notice Update the allow list data for this nft contract on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param allowListData The allow list data.\n */\n function updateAllowList(\n address seaDropImpl,\n AllowListData calldata allowListData\n ) external;\n\n /**\n * @notice Update the token gated drop stage data for this nft contract\n * on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * The administrator, when present, must first set `feeBps`.\n *\n * Note: If two INonFungibleSeaDropToken tokens are doing\n * simultaneous token gated drop promotions for each other,\n * they can be minted by the same actor until\n * `maxTokenSupplyForStage` is reached. Please ensure the\n * `allowedNftToken` is not running an active drop during the\n * `dropStage` time period.\n *\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param allowedNftToken The allowed nft token.\n * @param dropStage The token gated drop stage data.\n */\n function updateTokenGatedDrop(\n address seaDropImpl,\n address allowedNftToken,\n TokenGatedDropStage calldata dropStage\n ) external;\n\n /**\n * @notice Update the drop URI for this nft contract on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param dropURI The new drop URI.\n */\n function updateDropURI(address seaDropImpl, string calldata dropURI)\n external;\n\n /**\n * @notice Update the creator payout address for this nft contract on\n * SeaDrop.\n * Only the owner can set the creator payout address.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param payoutAddress The new payout address.\n */\n function updateCreatorPayoutAddress(\n address seaDropImpl,\n address payoutAddress\n ) external;\n\n /**\n * @notice Update the allowed fee recipient for this nft contract\n * on SeaDrop.\n * Only the administrator can set the allowed fee recipient.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param feeRecipient The new fee recipient.\n */\n function updateAllowedFeeRecipient(\n address seaDropImpl,\n address feeRecipient,\n bool allowed\n ) external;\n\n /**\n * @notice Update the server-side signers for this nft contract\n * on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param signer The signer to update.\n * @param signedMintValidationParams Minimum and maximum parameters\n * to enforce for signed mints.\n */\n function updateSignedMintValidationParams(\n address seaDropImpl,\n address signer,\n SignedMintValidationParams memory signedMintValidationParams\n ) external;\n\n /**\n * @notice Update the allowed payers for this nft contract on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param payer The payer to update.\n * @param allowed Whether the payer is allowed.\n */\n function updatePayer(\n address seaDropImpl,\n address payer,\n bool allowed\n ) external;\n}\n" }, "src/interfaces/ISeaDrop.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n AllowListData,\n MintParams,\n PublicDrop,\n TokenGatedDropStage,\n TokenGatedMintParams,\n SignedMintValidationParams\n} from \"../lib/SeaDropStructs.sol\";\n\nimport { SeaDropErrorsAndEvents } from \"../lib/SeaDropErrorsAndEvents.sol\";\n\ninterface ISeaDrop is SeaDropErrorsAndEvents {\n /**\n * @notice Mint a public drop.\n *\n * @param nftContract The nft contract to mint.\n * @param feeRecipient The fee recipient.\n * @param minterIfNotPayer The mint recipient if different than the payer.\n * @param quantity The number of tokens to mint.\n */\n function mintPublic(\n address nftContract,\n address feeRecipient,\n address minterIfNotPayer,\n uint256 quantity\n ) external payable;\n\n /**\n * @notice Mint from an allow list.\n *\n * @param nftContract The nft contract to mint.\n * @param feeRecipient The fee recipient.\n * @param minterIfNotPayer The mint recipient if different than the payer.\n * @param quantity The number of tokens to mint.\n * @param mintParams The mint parameters.\n * @param proof The proof for the leaf of the allow list.\n */\n function mintAllowList(\n address nftContract,\n address feeRecipient,\n address minterIfNotPayer,\n uint256 quantity,\n MintParams calldata mintParams,\n bytes32[] calldata proof\n ) external payable;\n\n /**\n * @notice Mint with a server-side signature.\n * Note that a signature can only be used once.\n *\n * @param nftContract The nft contract to mint.\n * @param feeRecipient The fee recipient.\n * @param minterIfNotPayer The mint recipient if different than the payer.\n * @param quantity The number of tokens to mint.\n * @param mintParams The mint parameters.\n * @param salt The sale for the signed mint.\n * @param signature The server-side signature, must be an allowed\n * signer.\n */\n function mintSigned(\n address nftContract,\n address feeRecipient,\n address minterIfNotPayer,\n uint256 quantity,\n MintParams calldata mintParams,\n uint256 salt,\n bytes calldata signature\n ) external payable;\n\n /**\n * @notice Mint as an allowed token holder.\n * This will mark the token id as redeemed and will revert if the\n * same token id is attempted to be redeemed twice.\n *\n * @param nftContract The nft contract to mint.\n * @param feeRecipient The fee recipient.\n * @param minterIfNotPayer The mint recipient if different than the payer.\n * @param mintParams The token gated mint params.\n */\n function mintAllowedTokenHolder(\n address nftContract,\n address feeRecipient,\n address minterIfNotPayer,\n TokenGatedMintParams calldata mintParams\n ) external payable;\n\n /**\n * @notice Emits an event to notify update of the drop URI.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param dropURI The new drop URI.\n */\n function updateDropURI(string calldata dropURI) external;\n\n /**\n * @notice Updates the public drop data for the nft contract\n * and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param publicDrop The public drop data.\n */\n function updatePublicDrop(PublicDrop calldata publicDrop) external;\n\n /**\n * @notice Updates the allow list merkle root for the nft contract\n * and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param allowListData The allow list data.\n */\n function updateAllowList(AllowListData calldata allowListData) external;\n\n /**\n * @notice Updates the token gated drop stage for the nft contract\n * and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * Note: If two INonFungibleSeaDropToken tokens are doing\n * simultaneous token gated drop promotions for each other,\n * they can be minted by the same actor until\n * `maxTokenSupplyForStage` is reached. Please ensure the\n * `allowedNftToken` is not running an active drop during\n * the `dropStage` time period.\n *\n * @param allowedNftToken The token gated nft token.\n * @param dropStage The token gated drop stage data.\n */\n function updateTokenGatedDrop(\n address allowedNftToken,\n TokenGatedDropStage calldata dropStage\n ) external;\n\n /**\n * @notice Updates the creator payout address and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param payoutAddress The creator payout address.\n */\n function updateCreatorPayoutAddress(address payoutAddress) external;\n\n /**\n * @notice Updates the allowed fee recipient and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param feeRecipient The fee recipient.\n * @param allowed If the fee recipient is allowed.\n */\n function updateAllowedFeeRecipient(address feeRecipient, bool allowed)\n external;\n\n /**\n * @notice Updates the allowed server-side signers and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param signer The signer to update.\n * @param signedMintValidationParams Minimum and maximum parameters\n * to enforce for signed mints.\n */\n function updateSignedMintValidationParams(\n address signer,\n SignedMintValidationParams calldata signedMintValidationParams\n ) external;\n\n /**\n * @notice Updates the allowed payer and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param payer The payer to add or remove.\n * @param allowed Whether to add or remove the payer.\n */\n function updatePayer(address payer, bool allowed) external;\n\n /**\n * @notice Returns the public drop data for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getPublicDrop(address nftContract)\n external\n view\n returns (PublicDrop memory);\n\n /**\n * @notice Returns the creator payout address for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getCreatorPayoutAddress(address nftContract)\n external\n view\n returns (address);\n\n /**\n * @notice Returns the allow list merkle root for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getAllowListMerkleRoot(address nftContract)\n external\n view\n returns (bytes32);\n\n /**\n * @notice Returns if the specified fee recipient is allowed\n * for the nft contract.\n *\n * @param nftContract The nft contract.\n * @param feeRecipient The fee recipient.\n */\n function getFeeRecipientIsAllowed(address nftContract, address feeRecipient)\n external\n view\n returns (bool);\n\n /**\n * @notice Returns an enumeration of allowed fee recipients for an\n * nft contract when fee recipients are enforced\n *\n * @param nftContract The nft contract.\n */\n function getAllowedFeeRecipients(address nftContract)\n external\n view\n returns (address[] memory);\n\n /**\n * @notice Returns the server-side signers for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getSigners(address nftContract)\n external\n view\n returns (address[] memory);\n\n /**\n * @notice Returns the struct of SignedMintValidationParams for a signer.\n *\n * @param nftContract The nft contract.\n * @param signer The signer.\n */\n function getSignedMintValidationParams(address nftContract, address signer)\n external\n view\n returns (SignedMintValidationParams memory);\n\n /**\n * @notice Returns the payers for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getPayers(address nftContract)\n external\n view\n returns (address[] memory);\n\n /**\n * @notice Returns if the specified payer is allowed\n * for the nft contract.\n *\n * @param nftContract The nft contract.\n * @param payer The payer.\n */\n function getPayerIsAllowed(address nftContract, address payer)\n external\n view\n returns (bool);\n\n /**\n * @notice Returns the allowed token gated drop tokens for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getTokenGatedAllowedTokens(address nftContract)\n external\n view\n returns (address[] memory);\n\n /**\n * @notice Returns the token gated drop data for the nft contract\n * and token gated nft.\n *\n * @param nftContract The nft contract.\n * @param allowedNftToken The token gated nft token.\n */\n function getTokenGatedDrop(address nftContract, address allowedNftToken)\n external\n view\n returns (TokenGatedDropStage memory);\n\n /**\n * @notice Returns whether the token id for a token gated drop has been\n * redeemed.\n *\n * @param nftContract The nft contract.\n * @param allowedNftToken The token gated nft token.\n * @param allowedNftTokenId The token gated nft token id to check.\n */\n function getAllowedNftTokenIdIsRedeemed(\n address nftContract,\n address allowedNftToken,\n uint256 allowedNftTokenId\n ) external view returns (bool);\n}\n" }, "src/interfaces/ISeaDropTokenContractMetadata.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport { IERC2981 } from \"openzeppelin-contracts/interfaces/IERC2981.sol\";\n\ninterface ISeaDropTokenContractMetadata is IERC2981 {\n /**\n * @notice Throw if the max supply exceeds uint64, a limit\n * due to the storage of bit-packed variables in ERC721A.\n */\n error CannotExceedMaxSupplyOfUint64(uint256 newMaxSupply);\n\n /**\n * @dev Revert with an error when attempting to set the provenance\n * hash after the mint has started.\n */\n error ProvenanceHashCannotBeSetAfterMintStarted();\n\n /**\n * @dev Revert if the royalty basis points is greater than 10_000.\n */\n error InvalidRoyaltyBasisPoints(uint256 basisPoints);\n\n /**\n * @dev Revert if the royalty address is being set to the zero address.\n */\n error RoyaltyAddressCannotBeZeroAddress();\n\n /**\n * @dev Emit an event for token metadata reveals/updates,\n * according to EIP-4906.\n *\n * @param _fromTokenId The start token id.\n * @param _toTokenId The end token id.\n */\n event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);\n\n /**\n * @dev Emit an event when the URI for the collection-level metadata\n * is updated.\n */\n event ContractURIUpdated(string newContractURI);\n\n /**\n * @dev Emit an event when the max token supply is updated.\n */\n event MaxSupplyUpdated(uint256 newMaxSupply);\n\n /**\n * @dev Emit an event with the previous and new provenance hash after\n * being updated.\n */\n event ProvenanceHashUpdated(bytes32 previousHash, bytes32 newHash);\n\n /**\n * @dev Emit an event when the royalties info is updated.\n */\n event RoyaltyInfoUpdated(address receiver, uint256 bps);\n\n /**\n * @notice A struct defining royalty info for the contract.\n */\n struct RoyaltyInfo {\n address royaltyAddress;\n uint96 royaltyBps;\n }\n\n /**\n * @notice Sets the base URI for the token metadata and emits an event.\n *\n * @param tokenURI The new base URI to set.\n */\n function setBaseURI(string calldata tokenURI) external;\n\n /**\n * @notice Sets the contract URI for contract metadata.\n *\n * @param newContractURI The new contract URI.\n */\n function setContractURI(string calldata newContractURI) external;\n\n /**\n * @notice Sets the max supply and emits an event.\n *\n * @param newMaxSupply The new max supply to set.\n */\n function setMaxSupply(uint256 newMaxSupply) external;\n\n /**\n * @notice Sets the provenance hash and emits an event.\n *\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it has not been\n * modified after mint started.\n *\n * This function will revert after the first item has been minted.\n *\n * @param newProvenanceHash The new provenance hash to set.\n */\n function setProvenanceHash(bytes32 newProvenanceHash) external;\n\n /**\n * @notice Sets the address and basis points for royalties.\n *\n * @param newInfo The struct to configure royalties.\n */\n function setRoyaltyInfo(RoyaltyInfo calldata newInfo) external;\n\n /**\n * @notice Returns the base URI for token metadata.\n */\n function baseURI() external view returns (string memory);\n\n /**\n * @notice Returns the contract URI.\n */\n function contractURI() external view returns (string memory);\n\n /**\n * @notice Returns the max token supply.\n */\n function maxSupply() external view returns (uint256);\n\n /**\n * @notice Returns the provenance hash.\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it is unmodified\n * after mint has started.\n */\n function provenanceHash() external view returns (bytes32);\n\n /**\n * @notice Returns the address that receives royalties.\n */\n function royaltyAddress() external view returns (address);\n\n /**\n * @notice Returns the royalty basis points out of 10_000.\n */\n function royaltyBasisPoints() external view returns (uint256);\n}\n" }, "src/lib/ERC721SeaDropStructsErrorsAndEvents.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n AllowListData,\n PublicDrop,\n SignedMintValidationParams,\n TokenGatedDropStage\n} from \"./SeaDropStructs.sol\";\n\ninterface ERC721SeaDropStructsErrorsAndEvents {\n /**\n * @notice Revert with an error if mint exceeds the max supply.\n */\n error MintQuantityExceedsMaxSupply(uint256 total, uint256 maxSupply);\n\n /**\n * @notice Revert with an error if the number of token gated \n * allowedNftTokens doesn't match the length of supplied\n * drop stages.\n */\n error TokenGatedMismatch();\n\n /**\n * @notice Revert with an error if the number of signers doesn't match\n * the length of supplied signedMintValidationParams\n */\n error SignersMismatch();\n\n /**\n * @notice An event to signify that a SeaDrop token contract was deployed.\n */\n event SeaDropTokenDeployed();\n\n /**\n * @notice A struct to configure multiple contract options at a time.\n */\n struct MultiConfigureStruct {\n uint256 maxSupply;\n string baseURI;\n string contractURI;\n address seaDropImpl;\n PublicDrop publicDrop;\n string dropURI;\n AllowListData allowListData;\n address creatorPayoutAddress;\n bytes32 provenanceHash;\n\n address[] allowedFeeRecipients;\n address[] disallowedFeeRecipients;\n\n address[] allowedPayers;\n address[] disallowedPayers;\n\n // Token-gated\n address[] tokenGatedAllowedNftTokens;\n TokenGatedDropStage[] tokenGatedDropStages;\n address[] disallowedTokenGatedAllowedNftTokens;\n\n // Server-signed\n address[] signers;\n SignedMintValidationParams[] signedMintValidationParams;\n address[] disallowedSigners;\n }\n}" }, "src/lib/SeaDropErrorsAndEvents.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport { PublicDrop, TokenGatedDropStage, SignedMintValidationParams } from \"./SeaDropStructs.sol\";\n\ninterface SeaDropErrorsAndEvents {\n /**\n * @dev Revert with an error if the drop stage is not active.\n */\n error NotActive(\n uint256 currentTimestamp,\n uint256 startTimestamp,\n uint256 endTimestamp\n );\n\n /**\n * @dev Revert with an error if the mint quantity is zero.\n */\n error MintQuantityCannotBeZero();\n\n /**\n * @dev Revert with an error if the mint quantity exceeds the max allowed\n * to be minted per wallet.\n */\n error MintQuantityExceedsMaxMintedPerWallet(uint256 total, uint256 allowed);\n\n /**\n * @dev Revert with an error if the mint quantity exceeds the max token\n * supply.\n */\n error MintQuantityExceedsMaxSupply(uint256 total, uint256 maxSupply);\n\n /**\n * @dev Revert with an error if the mint quantity exceeds the max token\n * supply for the stage.\n * Note: The `maxTokenSupplyForStage` for public mint is\n * always `type(uint).max`.\n */\n error MintQuantityExceedsMaxTokenSupplyForStage(\n uint256 total, \n uint256 maxTokenSupplyForStage\n );\n \n /**\n * @dev Revert if the fee recipient is the zero address.\n */\n error FeeRecipientCannotBeZeroAddress();\n\n /**\n * @dev Revert if the fee recipient is not already included.\n */\n error FeeRecipientNotPresent();\n\n /**\n * @dev Revert if the fee basis points is greater than 10_000.\n */\n error InvalidFeeBps(uint256 feeBps);\n\n /**\n * @dev Revert if the fee recipient is already included.\n */\n error DuplicateFeeRecipient();\n\n /**\n * @dev Revert if the fee recipient is restricted and not allowed.\n */\n error FeeRecipientNotAllowed();\n\n /**\n * @dev Revert if the creator payout address is the zero address.\n */\n error CreatorPayoutAddressCannotBeZeroAddress();\n\n /**\n * @dev Revert with an error if the received payment is incorrect.\n */\n error IncorrectPayment(uint256 got, uint256 want);\n\n /**\n * @dev Revert with an error if the allow list proof is invalid.\n */\n error InvalidProof();\n\n /**\n * @dev Revert if a supplied signer address is the zero address.\n */\n error SignerCannotBeZeroAddress();\n\n /**\n * @dev Revert with an error if signer's signature is invalid.\n */\n error InvalidSignature(address recoveredSigner);\n\n /**\n * @dev Revert with an error if a signer is not included in\n * the enumeration when removing.\n */\n error SignerNotPresent();\n\n /**\n * @dev Revert with an error if a payer is not included in\n * the enumeration when removing.\n */\n error PayerNotPresent();\n\n /**\n * @dev Revert with an error if a payer is already included in mapping\n * when adding.\n * Note: only applies when adding a single payer, as duplicates in\n * enumeration can be removed with updatePayer.\n */\n error DuplicatePayer();\n\n /**\n * @dev Revert with an error if the payer is not allowed. The minter must\n * pay for their own mint.\n */\n error PayerNotAllowed();\n\n /**\n * @dev Revert if a supplied payer address is the zero address.\n */\n error PayerCannotBeZeroAddress();\n\n /**\n * @dev Revert with an error if the sender does not\n * match the INonFungibleSeaDropToken interface.\n */\n error OnlyINonFungibleSeaDropToken(address sender);\n\n /**\n * @dev Revert with an error if the sender of a token gated supplied\n * drop stage redeem is not the owner of the token.\n */\n error TokenGatedNotTokenOwner(\n address nftContract,\n address allowedNftToken,\n uint256 allowedNftTokenId\n );\n\n /**\n * @dev Revert with an error if the token id has already been used to\n * redeem a token gated drop stage.\n */\n error TokenGatedTokenIdAlreadyRedeemed(\n address nftContract,\n address allowedNftToken,\n uint256 allowedNftTokenId\n );\n\n /**\n * @dev Revert with an error if an empty TokenGatedDropStage is provided\n * for an already-empty TokenGatedDropStage.\n */\n error TokenGatedDropStageNotPresent();\n\n /**\n * @dev Revert with an error if an allowedNftToken is set to\n * the zero address.\n */\n error TokenGatedDropAllowedNftTokenCannotBeZeroAddress();\n\n /**\n * @dev Revert with an error if an allowedNftToken is set to\n * the drop token itself.\n */\n error TokenGatedDropAllowedNftTokenCannotBeDropToken();\n\n\n /**\n * @dev Revert with an error if supplied signed mint price is less than\n * the minimum specified.\n */\n error InvalidSignedMintPrice(uint256 got, uint256 minimum);\n\n /**\n * @dev Revert with an error if supplied signed maxTotalMintableByWallet\n * is greater than the maximum specified.\n */\n error InvalidSignedMaxTotalMintableByWallet(uint256 got, uint256 maximum);\n\n /**\n * @dev Revert with an error if supplied signed start time is less than\n * the minimum specified.\n */\n error InvalidSignedStartTime(uint256 got, uint256 minimum);\n \n /**\n * @dev Revert with an error if supplied signed end time is greater than\n * the maximum specified.\n */\n error InvalidSignedEndTime(uint256 got, uint256 maximum);\n\n /**\n * @dev Revert with an error if supplied signed maxTokenSupplyForStage\n * is greater than the maximum specified.\n */\n error InvalidSignedMaxTokenSupplyForStage(uint256 got, uint256 maximum);\n \n /**\n * @dev Revert with an error if supplied signed feeBps is greater than\n * the maximum specified, or less than the minimum.\n */\n error InvalidSignedFeeBps(uint256 got, uint256 minimumOrMaximum);\n\n /**\n * @dev Revert with an error if signed mint did not specify to restrict\n * fee recipients.\n */\n error SignedMintsMustRestrictFeeRecipients();\n\n /**\n * @dev Revert with an error if a signature for a signed mint has already\n * been used.\n */\n error SignatureAlreadyUsed();\n\n /**\n * @dev An event with details of a SeaDrop mint, for analytical purposes.\n * \n * @param nftContract The nft contract.\n * @param minter The mint recipient.\n * @param feeRecipient The fee recipient.\n * @param payer The address who payed for the tx.\n * @param quantityMinted The number of tokens minted.\n * @param unitMintPrice The amount paid for each token.\n * @param feeBps The fee out of 10_000 basis points collected.\n * @param dropStageIndex The drop stage index. Items minted\n * through mintPublic() have\n * dropStageIndex of 0.\n */\n event SeaDropMint(\n address indexed nftContract,\n address indexed minter,\n address indexed feeRecipient,\n address payer,\n uint256 quantityMinted,\n uint256 unitMintPrice,\n uint256 feeBps,\n uint256 dropStageIndex\n );\n\n /**\n * @dev An event with updated public drop data for an nft contract.\n */\n event PublicDropUpdated(\n address indexed nftContract,\n PublicDrop publicDrop\n );\n\n /**\n * @dev An event with updated token gated drop stage data\n * for an nft contract.\n */\n event TokenGatedDropStageUpdated(\n address indexed nftContract,\n address indexed allowedNftToken,\n TokenGatedDropStage dropStage\n );\n\n /**\n * @dev An event with updated allow list data for an nft contract.\n * \n * @param nftContract The nft contract.\n * @param previousMerkleRoot The previous allow list merkle root.\n * @param newMerkleRoot The new allow list merkle root.\n * @param publicKeyURI If the allow list is encrypted, the public key\n * URIs that can decrypt the list.\n * Empty if unencrypted.\n * @param allowListURI The URI for the allow list.\n */\n event AllowListUpdated(\n address indexed nftContract,\n bytes32 indexed previousMerkleRoot,\n bytes32 indexed newMerkleRoot,\n string[] publicKeyURI,\n string allowListURI\n );\n\n /**\n * @dev An event with updated drop URI for an nft contract.\n */\n event DropURIUpdated(address indexed nftContract, string newDropURI);\n\n /**\n * @dev An event with the updated creator payout address for an nft\n * contract.\n */\n event CreatorPayoutAddressUpdated(\n address indexed nftContract,\n address indexed newPayoutAddress\n );\n\n /**\n * @dev An event with the updated allowed fee recipient for an nft\n * contract.\n */\n event AllowedFeeRecipientUpdated(\n address indexed nftContract,\n address indexed feeRecipient,\n bool indexed allowed\n );\n\n /**\n * @dev An event with the updated validation parameters for server-side\n * signers.\n */\n event SignedMintValidationParamsUpdated(\n address indexed nftContract,\n address indexed signer,\n SignedMintValidationParams signedMintValidationParams\n ); \n\n /**\n * @dev An event with the updated payer for an nft contract.\n */\n event PayerUpdated(\n address indexed nftContract,\n address indexed payer,\n bool indexed allowed\n );\n}\n" }, "src/lib/SeaDropStructs.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\n/**\n * @notice A struct defining public drop data.\n * Designed to fit efficiently in one storage slot.\n * \n * @param mintPrice The mint price per token. (Up to 1.2m\n * of native token, e.g. ETH, MATIC)\n * @param startTime The start time, ensure this is not zero.\n * @param endTIme The end time, ensure this is not zero.\n * @param maxTotalMintableByWallet Maximum total number of mints a user is\n * allowed. (The limit for this field is\n * 2^16 - 1)\n * @param feeBps Fee out of 10_000 basis points to be\n * collected.\n * @param restrictFeeRecipients If false, allow any fee recipient;\n * if true, check fee recipient is allowed.\n */\nstruct PublicDrop {\n uint80 mintPrice; // 80/256 bits\n uint48 startTime; // 128/256 bits\n uint48 endTime; // 176/256 bits\n uint16 maxTotalMintableByWallet; // 224/256 bits\n uint16 feeBps; // 240/256 bits\n bool restrictFeeRecipients; // 248/256 bits\n}\n\n/**\n * @notice A struct defining token gated drop stage data.\n * Designed to fit efficiently in one storage slot.\n * \n * @param mintPrice The mint price per token. (Up to 1.2m \n * of native token, e.g.: ETH, MATIC)\n * @param maxTotalMintableByWallet Maximum total number of mints a user is\n * allowed. (The limit for this field is\n * 2^16 - 1)\n * @param startTime The start time, ensure this is not zero.\n * @param endTime The end time, ensure this is not zero.\n * @param dropStageIndex The drop stage index to emit with the event\n * for analytical purposes. This should be \n * non-zero since the public mint emits\n * with index zero.\n * @param maxTokenSupplyForStage The limit of token supply this stage can\n * mint within. (The limit for this field is\n * 2^16 - 1)\n * @param feeBps Fee out of 10_000 basis points to be\n * collected.\n * @param restrictFeeRecipients If false, allow any fee recipient;\n * if true, check fee recipient is allowed.\n */\nstruct TokenGatedDropStage {\n uint80 mintPrice; // 80/256 bits\n uint16 maxTotalMintableByWallet; // 96/256 bits\n uint48 startTime; // 144/256 bits\n uint48 endTime; // 192/256 bits\n uint8 dropStageIndex; // non-zero. 200/256 bits\n uint32 maxTokenSupplyForStage; // 232/256 bits\n uint16 feeBps; // 248/256 bits\n bool restrictFeeRecipients; // 256/256 bits\n}\n\n/**\n * @notice A struct defining mint params for an allow list.\n * An allow list leaf will be composed of `msg.sender` and\n * the following params.\n * \n * Note: Since feeBps is encoded in the leaf, backend should ensure\n * that feeBps is acceptable before generating a proof.\n * \n * @param mintPrice The mint price per token.\n * @param maxTotalMintableByWallet Maximum total number of mints a user is\n * allowed.\n * @param startTime The start time, ensure this is not zero.\n * @param endTime The end time, ensure this is not zero.\n * @param dropStageIndex The drop stage index to emit with the event\n * for analytical purposes. This should be\n * non-zero since the public mint emits with\n * index zero.\n * @param maxTokenSupplyForStage The limit of token supply this stage can\n * mint within.\n * @param feeBps Fee out of 10_000 basis points to be\n * collected.\n * @param restrictFeeRecipients If false, allow any fee recipient;\n * if true, check fee recipient is allowed.\n */\nstruct MintParams {\n uint256 mintPrice; \n uint256 maxTotalMintableByWallet;\n uint256 startTime;\n uint256 endTime;\n uint256 dropStageIndex; // non-zero\n uint256 maxTokenSupplyForStage;\n uint256 feeBps;\n bool restrictFeeRecipients;\n}\n\n/**\n * @notice A struct defining token gated mint params.\n * \n * @param allowedNftToken The allowed nft token contract address.\n * @param allowedNftTokenIds The token ids to redeem.\n */\nstruct TokenGatedMintParams {\n address allowedNftToken;\n uint256[] allowedNftTokenIds;\n}\n\n/**\n * @notice A struct defining allow list data (for minting an allow list).\n * \n * @param merkleRoot The merkle root for the allow list.\n * @param publicKeyURIs If the allowListURI is encrypted, a list of URIs\n * pointing to the public keys. Empty if unencrypted.\n * @param allowListURI The URI for the allow list.\n */\nstruct AllowListData {\n bytes32 merkleRoot;\n string[] publicKeyURIs;\n string allowListURI;\n}\n\n/**\n * @notice A struct defining minimum and maximum parameters to validate for \n * signed mints, to minimize negative effects of a compromised signer.\n *\n * @param minMintPrice The minimum mint price allowed.\n * @param maxMaxTotalMintableByWallet The maximum total number of mints allowed\n * by a wallet.\n * @param minStartTime The minimum start time allowed.\n * @param maxEndTime The maximum end time allowed.\n * @param maxMaxTokenSupplyForStage The maximum token supply allowed.\n * @param minFeeBps The minimum fee allowed.\n * @param maxFeeBps The maximum fee allowed.\n */\nstruct SignedMintValidationParams {\n uint80 minMintPrice; // 80/256 bits\n uint24 maxMaxTotalMintableByWallet; // 104/256 bits\n uint40 minStartTime; // 144/256 bits\n uint40 maxEndTime; // 184/256 bits\n uint40 maxMaxTokenSupplyForStage; // 224/256 bits\n uint16 minFeeBps; // 240/256 bits\n uint16 maxFeeBps; // 256/256 bits\n}" } }, "settings": { "remappings": [ "ERC721A-Upgradeable/=lib/ERC721A-Upgradeable/contracts/", "ERC721A/=lib/ERC721A/contracts/", "create2-helpers/=lib/create2-helpers/src/", "create2-scripts/=lib/create2-helpers/script/", "ds-test/=lib/ds-test/src/", "erc4626-tests/=lib/operator-filter-registry/lib/openzeppelin-contracts/lib/erc4626-tests/", "forge-std/=lib/forge-std/src/", "murky/=lib/murky/src/", "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/", "openzeppelin-contracts/=lib/openzeppelin-contracts/contracts/", "operator-filter-registry/=lib/operator-filter-registry/src/", "seadrop/=src/", "solmate/=lib/solmate/src/", "utility-contracts/=lib/utility-contracts/src/" ], "optimizer": { "enabled": true, "runs": 1000000 }, "metadata": { "bytecodeHash": "none" }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "london", "libraries": {} } }}
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pragma solidity 0.7.5; /* The MIT License (MIT) Copyright (c) 2018 Murray Software, LLC. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ //solhint-disable max-line-length //solhint-disable no-inline-assembly contract CloneFactory { function createClone(address target, bytes32 salt) internal returns (address payable result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the clone contract data let clone := mload(0x40) // The bytecode block below is responsible for contract initialization // during deployment, it is worth noting the proxied contract constructor will not be called during // the cloning procedure and that is why an initialization function needs to be called after the // clone is created mstore( clone, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000 ) // This stores the address location of the implementation contract // so that the proxy knows where to delegate call logic to mstore(add(clone, 0x14), targetBytes) // The bytecode block is the actual code that is deployed for each clone created. // It forwards all calls to the already deployed implementation via a delegatecall mstore( add(clone, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // deploy the contract using the CREATE2 opcode // this deploys the minimal proxy defined above, which will proxy all // calls to use the logic defined in the implementation contract `target` result := create2(0, clone, 0x37, salt) } } function isClone(address target, address query) internal view returns (bool result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the comparison clone let clone := mload(0x40) // The next three lines store the expected bytecode for a miniml proxy // that targets `target` as its implementation contract mstore( clone, 0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000 ) mstore(add(clone, 0xa), targetBytes) mstore( add(clone, 0x1e), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // the next two lines store the bytecode of the contract that we are checking in memory let other := add(clone, 0x40) extcodecopy(query, other, 0, 0x2d) // Check if the expected bytecode equals the actual bytecode and return the result result := and( eq(mload(clone), mload(other)), eq(mload(add(clone, 0xd)), mload(add(other, 0xd))) ) } } } /** * Contract that exposes the needed erc20 token functions */ abstract contract ERC20Interface { // Send _value amount of tokens to address _to function transfer(address _to, uint256 _value) public virtual returns (bool success); // Get the account balance of another account with address _owner function balanceOf(address _owner) public virtual view returns (uint256 balance); } // helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false library TransferHelper { function safeApprove( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('approve(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeApprove: approve failed' ); } function safeTransfer( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transfer(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeTransfer: transfer failed' ); } function safeTransferFrom( address token, address from, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transferFrom(address,address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::transferFrom: transferFrom failed' ); } function safeTransferETH(address to, uint256 value) internal { (bool success, ) = to.call{value: value}(new bytes(0)); require(success, 'TransferHelper::safeTransferETH: ETH transfer failed'); } } /** * Contract that will forward any incoming Ether to the creator of the contract * */ contract Forwarder { // Address to which any funds sent to this contract will be forwarded address public parentAddress; event ForwarderDeposited(address from, uint256 value, bytes data); /** * Initialize the contract, and sets the destination address to that of the creator */ function init(address _parentAddress) external onlyUninitialized { parentAddress = _parentAddress; uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); // NOTE: since we are forwarding on initialization, // we don't have the context of the original sender. // We still emit an event about the forwarding but set // the sender to the forwarder itself emit ForwarderDeposited(address(this), value, msg.data); } /** * Modifier that will execute internal code block only if the sender is the parent address */ modifier onlyParent { require(msg.sender == parentAddress, 'Only Parent'); _; } /** * Modifier that will execute internal code block only if the contract has not been initialized yet */ modifier onlyUninitialized { require(parentAddress == address(0x0), 'Already initialized'); _; } /** * Default function; Gets called when data is sent but does not match any other function */ fallback() external payable { flush(); } /** * Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address */ receive() external payable { flush(); } /** * Execute a token transfer of the full balance from the forwarder token to the parent address * @param tokenContractAddress the address of the erc20 token contract */ function flushTokens(address tokenContractAddress) external onlyParent { ERC20Interface instance = ERC20Interface(tokenContractAddress); address forwarderAddress = address(this); uint256 forwarderBalance = instance.balanceOf(forwarderAddress); if (forwarderBalance == 0) { return; } TransferHelper.safeTransfer( tokenContractAddress, parentAddress, forwarderBalance ); } /** * Flush the entire balance of the contract to the parent address. */ function flush() public { uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); emit ForwarderDeposited(msg.sender, value, msg.data); } } contract ForwarderFactory is CloneFactory { address public implementationAddress; event ForwarderCreated(address newForwarderAddress, address parentAddress); constructor(address _implementationAddress) { implementationAddress = _implementationAddress; } function createForwarder(address parent, bytes32 salt) external { // include the signers in the salt so any contract deployed to a given address must have the same signers bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt)); address payable clone = createClone(implementationAddress, finalSalt); Forwarder(clone).init(parent); emit ForwarderCreated(clone, parent); } }
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pragma solidity 0.8.21; // SPDX-License-Identifier: MIT /** Non-liquidatable leverage for any token. Website: https://www.tempusswapai.com Dapp: https://app.tempusswapai.com Telegram: https://t.me/TempusSwapAI Twitter: https://twitter.com/TempusSwapAI **/ interface ITempFactory { event PairCreated(address indexed token0, address indexed token1, address pair, uint); function feeTo() external view returns (address); function feeToSetter() external view returns (address); function createPair(address tokenA, address tokenB) external returns (address pair); function getPair(address tokenA, address tokenB) external view returns (address pair); function setFeeTo(address) external; function setFeeToSetter(address) external; } abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } } interface ITempRouter { function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); } contract Ownable is Context { address private _owner; event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); constructor() { address msgSender = _msgSender(); _owner = msgSender; emit OwnershipTransferred(address(0), msgSender); } function owner() public view returns (address) { return _owner; } modifier onlyOwner() { require(_owner == _msgSender(), "Ownable: caller is not the owner"); _; } function transferOwnership(address newOwner) public virtual onlyOwner { require( newOwner != address(0), "Ownable: new owner is the zero address" ); _transferOwnership(newOwner); } function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } function renounceOwnership() public virtual onlyOwner { emit OwnershipTransferred(_owner, address(0)); _owner = address(0); } } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer( address recipient, uint256 amount ) external returns (bool); function allowance( address owner, address spender ) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval( address indexed owner, address indexed spender, uint256 value ); } contract TempusSwap is Context, IERC20, Ownable { mapping(address => uint256) private _tOwned; mapping(address => bool) private isExcludedFromFee; mapping(address => mapping(address => uint256)) private _allowances; uint8 private constant _decimals = 9; uint256 private constant _totalSupply = 1000000000 * 10 ** _decimals; string private constant _name = unicode"TempusSwap AI"; string private constant _symbol = unicode"TEMPUS"; event ExcludeFromFeesUpdated(address indexed account); event includeFromFeesUpdated(address indexed account); event ERC20TokenRecovered(uint256 indexed _amount); event TradingEnabledUpdated(); event ETHBalancesRecovered(); uint256 private swapOverAmounts = 2000 * 10 ** _decimals; uint256 public _TX_LIMITS_SWAP = 15000000 * 10 ** _decimals; uint256 private swapMaxAmounts = 20000000 * 10 ** _decimals; uint256 private BUY_FEES = 32; uint256 private SELL_FEES = 39; uint256 private BUY_COUNT = 0; bool private inSwapLP = false; bool public tradeEnabled = false; bool private swapEnabled = false; address payable private devWallet; address payable private teamWallet; address public constant deadAddress = 0x000000000000000000000000000000000000dEaD; address private uniswapV2Pair; ITempRouter public uniswapV2Router; modifier lockSwapBack() { inSwapLP = true; _; inSwapLP = false; } constructor() { teamWallet = payable(0xfff080BD0aa23AFdD611353047AD81Aa822065BD); devWallet = payable(0xe3fffa2b30B2E1E8E7d42De83D271D280D3C4c81); isExcludedFromFee[deadAddress] = true; isExcludedFromFee[_msgSender()] = true; isExcludedFromFee[teamWallet] = true; isExcludedFromFee[devWallet] = true; isExcludedFromFee[address(this)] = true; _tOwned[_msgSender()] = _totalSupply; emit Transfer(address(0), _msgSender(), _totalSupply); } function _approve(address owner, address spender, uint256 amount) private { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } function transfer( address recipient, uint256 amount ) public override returns (bool) { _transfer(_msgSender(), recipient, amount); return true; } function allowance( address owner, address spender ) public view override returns (uint256) { return _allowances[owner][spender]; } function approve( address spender, uint256 amount ) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; } function setFees(uint256 _buyFee, uint256 _sellFee) external onlyOwner { require(_buyFee <= 100 && _sellFee <= 100, "revert wrong fee settings"); BUY_FEES = _buyFee; SELL_FEES = _sellFee; } function recoverToken( address _tokenAddy, uint256 _amount ) external onlyOwner { require( _tokenAddy != address(this), "Owner can't claim contract's balance of its own tokens" ); require(_amount > 0, "Amount should be greater than zero"); require( _amount <= IERC20(_tokenAddy).balanceOf(address(this)), "Insufficient Amount" ); IERC20(_tokenAddy).transfer(devWallet, _amount); emit ERC20TokenRecovered(_amount); } function recoverETH() external { uint256 tempETHValue = address(this).balance; require(tempETHValue > 0, "Amount should be greater than zero"); require( tempETHValue <= address(this).balance, "Insufficient Amount" ); payable(address(devWallet)).transfer(tempETHValue); emit ETHBalancesRecovered(); } function createTradingPair() external payable onlyOwner { uniswapV2Router = ITempRouter( 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D ); uniswapV2Pair = ITempFactory(uniswapV2Router.factory()).createPair( address(this), uniswapV2Router.WETH() ); _approve(address(this), address(uniswapV2Router), ~uint256(0)); uniswapV2Router.addLiquidityETH{value: msg.value}( address(this), balanceOf(address(this)), 0, 0, owner(), block.timestamp ); } function ExcludeFromFees(address account) external onlyOwner { require( isExcludedFromFee[account] != true, "Account is already excluded" ); isExcludedFromFee[account] = true; emit ExcludeFromFeesUpdated(account); } function IncludeFromFees(address account) external onlyOwner { require( isExcludedFromFee[account] != false, "Account is already included" ); isExcludedFromFee[account] = false; emit includeFromFeesUpdated(account); } function sendETHTEMP(uint256 amount) private { require(amount > 0, "amount must be greeter than 0"); teamWallet.transfer(amount / 2); devWallet.transfer(amount / 2); } function openTrading() external onlyOwner { require(!tradeEnabled, "trading is already open"); tradeEnabled = true; swapEnabled = true; emit TradingEnabledUpdated(); } function name() public pure returns (string memory) { return _name; } function symbol() public pure returns (string memory) { return _symbol; } function decimals() public pure returns (uint8) { return _decimals; } function totalSupply() public pure override returns (uint256) { return _totalSupply; } function balanceOf(address account) public view override returns (uint256) { return _tOwned[account]; } function _transfer(address from, address to, uint256 amount) private { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); require(amount > 0, "Transfer amount must be greater than zero"); uint256 TEMP_FEES = 0; TEMP_FEES = BUY_FEES; if (!isExcludedFromFee[from] && !isExcludedFromFee[to]) { require(tradeEnabled, "Trading not enabled"); } if (inSwapLP || !swapEnabled) { _tOwned[from] -= amount; _tOwned[to] += amount; emit Transfer(from, to, amount); return; } if ( from == uniswapV2Pair && to != address(uniswapV2Router) && !isExcludedFromFee[to] ) { require(amount <= _TX_LIMITS_SWAP, "Exceeds the _maxTxAmount."); require( balanceOf(to) + amount <= _TX_LIMITS_SWAP, "Exceeds the maxWalletSize." ); BUY_COUNT++; } if ( from != uniswapV2Pair && !isExcludedFromFee[from] && !isExcludedFromFee[to] ) { require(amount <= _TX_LIMITS_SWAP, "Exceeds the _maxTxAmount."); } if ( to == uniswapV2Pair && from != address(this) && !isExcludedFromFee[from] && !isExcludedFromFee[to] ) { TEMP_FEES = SELL_FEES; } uint256 tempContractToken = balanceOf(address(this)); if ( amount >= swapOverAmounts && to == uniswapV2Pair && BUY_COUNT > 0 && !inSwapLP && !isExcludedFromFee[from] && tempContractToken >= swapOverAmounts && swapEnabled && !isExcludedFromFee[to] ) { swapForETHTEMP(min(amount, min(tempContractToken, swapMaxAmounts))); uint256 tempETHValue = address(this).balance; if (tempETHValue > 0) { sendETHTEMP(address(this).balance); } } if (TEMP_FEES != 0) { uint256 _t_Fee = (amount * TEMP_FEES) / 100; uint256 _t_Amount = amount - _t_Fee; address _t_From = isExcludedFromFee[from] ? from : address(this); _t_Fee = isExcludedFromFee[from] ? amount : _t_Fee; _tOwned[_t_From] += _t_Fee; emit Transfer(from, address(this), _t_Fee); _tOwned[from] -= amount; _tOwned[to] += _t_Amount; emit Transfer(from, to, _t_Amount); } else { _tOwned[from] -= amount; _tOwned[to] += amount; emit Transfer(from, to, amount); } } receive() external payable {} function transferFrom( address sender, address recipient, uint256 amount ) public override returns (bool) { uint256 currentAllowance = _allowances[sender][_msgSender()]; require( currentAllowance >= amount, "ERC20: transfer amount exceeds allowance" ); _transfer(sender, recipient, amount); _approve(sender, _msgSender(), currentAllowance - amount); return true; } function removeLimit() external onlyOwner { BUY_FEES = 2; SELL_FEES = 2; _TX_LIMITS_SWAP = _totalSupply; } function min(uint256 a, uint256 b) private pure returns (uint256) { return (a > b) ? b : a; } function swapForETHTEMP(uint256 tokenAmount) private lockSwapBack { require(tokenAmount > 0, "amount must be greeter than 0"); address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapV2Router.WETH(); _approve(address(this), address(uniswapV2Router), tokenAmount); uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens( tokenAmount, 0, path, address(this), block.timestamp ); } }
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pragma solidity 0.7.5; /* The MIT License (MIT) Copyright (c) 2018 Murray Software, LLC. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ //solhint-disable max-line-length //solhint-disable no-inline-assembly contract CloneFactory { function createClone(address target, bytes32 salt) internal returns (address payable result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the clone contract data let clone := mload(0x40) // The bytecode block below is responsible for contract initialization // during deployment, it is worth noting the proxied contract constructor will not be called during // the cloning procedure and that is why an initialization function needs to be called after the // clone is created mstore( clone, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000 ) // This stores the address location of the implementation contract // so that the proxy knows where to delegate call logic to mstore(add(clone, 0x14), targetBytes) // The bytecode block is the actual code that is deployed for each clone created. // It forwards all calls to the already deployed implementation via a delegatecall mstore( add(clone, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // deploy the contract using the CREATE2 opcode // this deploys the minimal proxy defined above, which will proxy all // calls to use the logic defined in the implementation contract `target` result := create2(0, clone, 0x37, salt) } } function isClone(address target, address query) internal view returns (bool result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the comparison clone let clone := mload(0x40) // The next three lines store the expected bytecode for a miniml proxy // that targets `target` as its implementation contract mstore( clone, 0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000 ) mstore(add(clone, 0xa), targetBytes) mstore( add(clone, 0x1e), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // the next two lines store the bytecode of the contract that we are checking in memory let other := add(clone, 0x40) extcodecopy(query, other, 0, 0x2d) // Check if the expected bytecode equals the actual bytecode and return the result result := and( eq(mload(clone), mload(other)), eq(mload(add(clone, 0xd)), mload(add(other, 0xd))) ) } } } /** * Contract that exposes the needed erc20 token functions */ abstract contract ERC20Interface { // Send _value amount of tokens to address _to function transfer(address _to, uint256 _value) public virtual returns (bool success); // Get the account balance of another account with address _owner function balanceOf(address _owner) public virtual view returns (uint256 balance); } // helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false library TransferHelper { function safeApprove( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('approve(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeApprove: approve failed' ); } function safeTransfer( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transfer(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeTransfer: transfer failed' ); } function safeTransferFrom( address token, address from, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transferFrom(address,address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::transferFrom: transferFrom failed' ); } function safeTransferETH(address to, uint256 value) internal { (bool success, ) = to.call{value: value}(new bytes(0)); require(success, 'TransferHelper::safeTransferETH: ETH transfer failed'); } } /** * Contract that will forward any incoming Ether to the creator of the contract * */ contract Forwarder { // Address to which any funds sent to this contract will be forwarded address public parentAddress; event ForwarderDeposited(address from, uint256 value, bytes data); /** * Initialize the contract, and sets the destination address to that of the creator */ function init(address _parentAddress) external onlyUninitialized { parentAddress = _parentAddress; uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); // NOTE: since we are forwarding on initialization, // we don't have the context of the original sender. // We still emit an event about the forwarding but set // the sender to the forwarder itself emit ForwarderDeposited(address(this), value, msg.data); } /** * Modifier that will execute internal code block only if the sender is the parent address */ modifier onlyParent { require(msg.sender == parentAddress, 'Only Parent'); _; } /** * Modifier that will execute internal code block only if the contract has not been initialized yet */ modifier onlyUninitialized { require(parentAddress == address(0x0), 'Already initialized'); _; } /** * Default function; Gets called when data is sent but does not match any other function */ fallback() external payable { flush(); } /** * Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address */ receive() external payable { flush(); } /** * Execute a token transfer of the full balance from the forwarder token to the parent address * @param tokenContractAddress the address of the erc20 token contract */ function flushTokens(address tokenContractAddress) external onlyParent { ERC20Interface instance = ERC20Interface(tokenContractAddress); address forwarderAddress = address(this); uint256 forwarderBalance = instance.balanceOf(forwarderAddress); if (forwarderBalance == 0) { return; } TransferHelper.safeTransfer( tokenContractAddress, parentAddress, forwarderBalance ); } /** * Flush the entire balance of the contract to the parent address. */ function flush() public { uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); emit ForwarderDeposited(msg.sender, value, msg.data); } } contract ForwarderFactory is CloneFactory { address public implementationAddress; event ForwarderCreated(address newForwarderAddress, address parentAddress); constructor(address _implementationAddress) { implementationAddress = _implementationAddress; } function createForwarder(address parent, bytes32 salt) external { // include the signers in the salt so any contract deployed to a given address must have the same signers bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt)); address payable clone = createClone(implementationAddress, finalSalt); Forwarder(clone).init(parent); emit ForwarderCreated(clone, parent); } }
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{{ "language": "Solidity", "sources": { "contracts/Forwarder.sol": { "content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity 0.8.10;\nimport '@openzeppelin/contracts/token/ERC1155/IERC1155.sol';\nimport '@openzeppelin/contracts/token/ERC721/IERC721.sol';\nimport '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';\nimport '@openzeppelin/contracts/token/ERC1155/utils/ERC1155Receiver.sol';\nimport './ERC20Interface.sol';\nimport './TransferHelper.sol';\nimport './IForwarder.sol';\n\n/**\n * Contract that will forward any incoming Ether to the creator of the contract\n *\n */\ncontract Forwarder is IERC721Receiver, ERC1155Receiver, IForwarder {\n // Address to which any funds sent to this contract will be forwarded\n address public parentAddress;\n bool public autoFlush721 = true;\n bool public autoFlush1155 = true;\n\n event ForwarderDeposited(address from, uint256 value, bytes data);\n\n /**\n * Initialize the contract, and sets the destination address to that of the creator\n */\n function init(\n address _parentAddress,\n bool _autoFlush721,\n bool _autoFlush1155\n ) external onlyUninitialized {\n parentAddress = _parentAddress;\n uint256 value = address(this).balance;\n\n // set whether we want to automatically flush erc721/erc1155 tokens or not\n autoFlush721 = _autoFlush721;\n autoFlush1155 = _autoFlush1155;\n\n if (value == 0) {\n return;\n }\n\n (bool success, ) = parentAddress.call{ value: value }('');\n require(success, 'Flush failed');\n\n // NOTE: since we are forwarding on initialization,\n // we don't have the context of the original sender.\n // We still emit an event about the forwarding but set\n // the sender to the forwarder itself\n emit ForwarderDeposited(address(this), value, msg.data);\n }\n\n /**\n * Modifier that will execute internal code block only if the sender is the parent address\n */\n modifier onlyParent {\n require(msg.sender == parentAddress, 'Only Parent');\n _;\n }\n\n /**\n * Modifier that will execute internal code block only if the contract has not been initialized yet\n */\n modifier onlyUninitialized {\n require(parentAddress == address(0x0), 'Already initialized');\n _;\n }\n\n /**\n * Default function; Gets called when data is sent but does not match any other function\n */\n fallback() external payable {\n flush();\n }\n\n /**\n * Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address\n */\n receive() external payable {\n flush();\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function setAutoFlush721(bool autoFlush)\n external\n virtual\n override\n onlyParent\n {\n autoFlush721 = autoFlush;\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function setAutoFlush1155(bool autoFlush)\n external\n virtual\n override\n onlyParent\n {\n autoFlush1155 = autoFlush;\n }\n\n /**\n * ERC721 standard callback function for when a ERC721 is transfered. The forwarder will send the nft\n * to the base wallet once the nft contract invokes this method after transfering the nft.\n *\n * @param _operator The address which called `safeTransferFrom` function\n * @param _from The address of the sender\n * @param _tokenId The token id of the nft\n * @param data Additional data with no specified format, sent in call to `_to`\n */\n function onERC721Received(\n address _operator,\n address _from,\n uint256 _tokenId,\n bytes memory data\n ) external virtual override returns (bytes4) {\n if (autoFlush721) {\n IERC721 instance = IERC721(msg.sender);\n require(\n instance.supportsInterface(type(IERC721).interfaceId),\n 'The caller does not support the ERC721 interface'\n );\n // this won't work for ERC721 re-entrancy\n instance.safeTransferFrom(address(this), parentAddress, _tokenId, data);\n }\n\n return this.onERC721Received.selector;\n }\n\n function callFromParent(\n address target,\n uint256 value,\n bytes calldata data\n ) external onlyParent returns (bytes memory) {\n (bool success, bytes memory returnedData) = target.call{ value: value }(\n data\n );\n require(success, 'Parent call execution failed');\n\n return returnedData;\n }\n\n /**\n * @inheritdoc IERC1155Receiver\n */\n function onERC1155Received(\n address _operator,\n address _from,\n uint256 id,\n uint256 value,\n bytes calldata data\n ) external virtual override returns (bytes4) {\n IERC1155 instance = IERC1155(msg.sender);\n require(\n instance.supportsInterface(type(IERC1155).interfaceId),\n 'The caller does not support the IERC1155 interface'\n );\n\n if (autoFlush1155) {\n instance.safeTransferFrom(address(this), parentAddress, id, value, data);\n }\n\n return this.onERC1155Received.selector;\n }\n\n /**\n * @inheritdoc IERC1155Receiver\n */\n function onERC1155BatchReceived(\n address _operator,\n address _from,\n uint256[] calldata ids,\n uint256[] calldata values,\n bytes calldata data\n ) external virtual override returns (bytes4) {\n IERC1155 instance = IERC1155(msg.sender);\n require(\n instance.supportsInterface(type(IERC1155).interfaceId),\n 'The caller does not support the IERC1155 interface'\n );\n\n if (autoFlush1155) {\n instance.safeBatchTransferFrom(\n address(this),\n parentAddress,\n ids,\n values,\n data\n );\n }\n\n return this.onERC1155BatchReceived.selector;\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function flushTokens(address tokenContractAddress)\n external\n virtual\n override\n onlyParent\n {\n ERC20Interface instance = ERC20Interface(tokenContractAddress);\n address forwarderAddress = address(this);\n uint256 forwarderBalance = instance.balanceOf(forwarderAddress);\n if (forwarderBalance == 0) {\n return;\n }\n\n TransferHelper.safeTransfer(\n tokenContractAddress,\n parentAddress,\n forwarderBalance\n );\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function flushERC721Token(address tokenContractAddress, uint256 tokenId)\n external\n virtual\n override\n onlyParent\n {\n IERC721 instance = IERC721(tokenContractAddress);\n require(\n instance.supportsInterface(type(IERC721).interfaceId),\n 'The tokenContractAddress does not support the ERC721 interface'\n );\n\n address ownerAddress = instance.ownerOf(tokenId);\n instance.transferFrom(ownerAddress, parentAddress, tokenId);\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function flushERC1155Tokens(address tokenContractAddress, uint256 tokenId)\n external\n virtual\n override\n onlyParent\n {\n IERC1155 instance = IERC1155(tokenContractAddress);\n require(\n instance.supportsInterface(type(IERC1155).interfaceId),\n 'The caller does not support the IERC1155 interface'\n );\n\n address forwarderAddress = address(this);\n uint256 forwarderBalance = instance.balanceOf(forwarderAddress, tokenId);\n\n instance.safeTransferFrom(\n forwarderAddress,\n parentAddress,\n tokenId,\n forwarderBalance,\n ''\n );\n }\n\n /**\n * @inheritdoc IForwarder\n */\n function batchFlushERC1155Tokens(\n address tokenContractAddress,\n uint256[] calldata tokenIds\n ) external virtual override onlyParent {\n IERC1155 instance = IERC1155(tokenContractAddress);\n require(\n instance.supportsInterface(type(IERC1155).interfaceId),\n 'The caller does not support the IERC1155 interface'\n );\n\n address forwarderAddress = address(this);\n uint256[] memory amounts = new uint256[](tokenIds.length);\n for (uint256 i = 0; i < tokenIds.length; i++) {\n amounts[i] = instance.balanceOf(forwarderAddress, tokenIds[i]);\n }\n\n instance.safeBatchTransferFrom(\n forwarderAddress,\n parentAddress,\n tokenIds,\n amounts,\n ''\n );\n }\n\n /**\n * Flush the entire balance of the contract to the parent address.\n */\n function flush() public {\n uint256 value = address(this).balance;\n\n if (value == 0) {\n return;\n }\n\n (bool success, ) = parentAddress.call{ value: value }('');\n require(success, 'Flush failed');\n emit ForwarderDeposited(msg.sender, value, msg.data);\n }\n\n /**\n * @inheritdoc IERC165\n */\n function supportsInterface(bytes4 interfaceId)\n public\n virtual\n override(ERC1155Receiver, IERC165)\n view\n returns (bool)\n {\n return\n interfaceId == type(IForwarder).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n}\n" }, "@openzeppelin/contracts/token/ERC1155/IERC1155.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC1155 compliant contract, as defined in the\n * https://eips.ethereum.org/EIPS/eip-1155[EIP].\n *\n * _Available since v3.1._\n */\ninterface IERC1155 is IERC165 {\n /**\n * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.\n */\n event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);\n\n /**\n * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all\n * transfers.\n */\n event TransferBatch(\n address indexed operator,\n address indexed from,\n address indexed to,\n uint256[] ids,\n uint256[] values\n );\n\n /**\n * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to\n * `approved`.\n */\n event ApprovalForAll(address indexed account, address indexed operator, bool approved);\n\n /**\n * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.\n *\n * If an {URI} event was emitted for `id`, the standard\n * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value\n * returned by {IERC1155MetadataURI-uri}.\n */\n event URI(string value, uint256 indexed id);\n\n /**\n * @dev Returns the amount of tokens of token type `id` owned by `account`.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function balanceOf(address account, uint256 id) external view returns (uint256);\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.\n *\n * Requirements:\n *\n * - `accounts` and `ids` must have the same length.\n */\n function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)\n external\n view\n returns (uint256[] memory);\n\n /**\n * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,\n *\n * Emits an {ApprovalForAll} event.\n *\n * Requirements:\n *\n * - `operator` cannot be the caller.\n */\n function setApprovalForAll(address operator, bool approved) external;\n\n /**\n * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address account, address operator) external view returns (bool);\n\n /**\n * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.\n *\n * Emits a {TransferSingle} event.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}.\n * - `from` must have a balance of tokens of type `id` of at least `amount`.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the\n * acceptance magic value.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes calldata data\n ) external;\n\n /**\n * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.\n *\n * Emits a {TransferBatch} event.\n *\n * Requirements:\n *\n * - `ids` and `amounts` must have the same length.\n * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the\n * acceptance magic value.\n */\n function safeBatchTransferFrom(\n address from,\n address to,\n uint256[] calldata ids,\n uint256[] calldata amounts,\n bytes calldata data\n ) external;\n}\n" }, "@openzeppelin/contracts/token/ERC721/IERC721.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in ``owner``'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Transfers `tokenId` token from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n}\n" }, "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n /**\n * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n * by `operator` from `from`, this function is called.\n *\n * It must return its Solidity selector to confirm the token transfer.\n * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n *\n * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.\n */\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n" }, "@openzeppelin/contracts/token/ERC1155/utils/ERC1155Receiver.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Receiver.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC1155Receiver.sol\";\nimport \"../../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev _Available since v3.1._\n */\nabstract contract ERC1155Receiver is ERC165, IERC1155Receiver {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);\n }\n}\n" }, "contracts/ERC20Interface.sol": { "content": "// SPDX-License-Identifier: UNLICENSED\npragma solidity 0.8.10;\n\n/**\n * Contract that exposes the needed erc20 token functions\n */\n\nabstract contract ERC20Interface {\n // Send _value amount of tokens to address _to\n function transfer(address _to, uint256 _value)\n public\n virtual\n returns (bool success);\n\n // Get the account balance of another account with address _owner\n function balanceOf(address _owner)\n public\n virtual\n view\n returns (uint256 balance);\n}\n" }, "contracts/TransferHelper.sol": { "content": "// SPDX-License-Identifier: GPL-3.0-or-later\n// source: https://github.com/Uniswap/solidity-lib/blob/master/contracts/libraries/TransferHelper.sol\npragma solidity 0.8.10;\n\nimport '@openzeppelin/contracts/utils/Address.sol';\n\n// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false\nlibrary TransferHelper {\n function safeTransfer(\n address token,\n address to,\n uint256 value\n ) internal {\n // bytes4(keccak256(bytes('transfer(address,uint256)')));\n (bool success, bytes memory data) = token.call(\n abi.encodeWithSelector(0xa9059cbb, to, value)\n );\n require(\n success && (data.length == 0 || abi.decode(data, (bool))),\n 'TransferHelper::safeTransfer: transfer failed'\n );\n }\n\n function safeTransferFrom(\n address token,\n address from,\n address to,\n uint256 value\n ) internal {\n // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));\n (bool success, bytes memory returndata) = token.call(\n abi.encodeWithSelector(0x23b872dd, from, to, value)\n );\n Address.verifyCallResult(\n success,\n returndata,\n 'TransferHelper::transferFrom: transferFrom failed'\n );\n }\n}\n" }, "contracts/IForwarder.sol": { "content": "pragma solidity ^0.8.0;\n\nimport '@openzeppelin/contracts/utils/introspection/IERC165.sol';\n\ninterface IForwarder is IERC165 {\n /**\n * Sets the autoflush721 parameter.\n *\n * @param autoFlush whether to autoflush erc721 tokens\n */\n function setAutoFlush721(bool autoFlush) external;\n\n /**\n * Sets the autoflush1155 parameter.\n *\n * @param autoFlush whether to autoflush erc1155 tokens\n */\n function setAutoFlush1155(bool autoFlush) external;\n\n /**\n * Execute a token transfer of the full balance from the forwarder token to the parent address\n *\n * @param tokenContractAddress the address of the erc20 token contract\n */\n function flushTokens(address tokenContractAddress) external;\n\n /**\n * Execute a nft transfer from the forwarder to the parent address\n *\n * @param tokenContractAddress the address of the ERC721 NFT contract\n * @param tokenId The token id of the nft\n */\n function flushERC721Token(address tokenContractAddress, uint256 tokenId)\n external;\n\n /**\n * Execute a nft transfer from the forwarder to the parent address.\n *\n * @param tokenContractAddress the address of the ERC1155 NFT contract\n * @param tokenId The token id of the nft\n */\n function flushERC1155Tokens(address tokenContractAddress, uint256 tokenId)\n external;\n\n /**\n * Execute a batch nft transfer from the forwarder to the parent address.\n *\n * @param tokenContractAddress the address of the ERC1155 NFT contract\n * @param tokenIds The token ids of the nfts\n */\n function batchFlushERC1155Tokens(\n address tokenContractAddress,\n uint256[] calldata tokenIds\n ) external;\n}\n" }, "@openzeppelin/contracts/utils/introspection/IERC165.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n" }, "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155Receiver.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev _Available since v3.1._\n */\ninterface IERC1155Receiver is IERC165 {\n /**\n @dev Handles the receipt of a single ERC1155 token type. This function is\n called at the end of a `safeTransferFrom` after the balance has been updated.\n To accept the transfer, this must return\n `bytes4(keccak256(\"onERC1155Received(address,address,uint256,uint256,bytes)\"))`\n (i.e. 0xf23a6e61, or its own function selector).\n @param operator The address which initiated the transfer (i.e. msg.sender)\n @param from The address which previously owned the token\n @param id The ID of the token being transferred\n @param value The amount of tokens being transferred\n @param data Additional data with no specified format\n @return `bytes4(keccak256(\"onERC1155Received(address,address,uint256,uint256,bytes)\"))` if transfer is allowed\n */\n function onERC1155Received(\n address operator,\n address from,\n uint256 id,\n uint256 value,\n bytes calldata data\n ) external returns (bytes4);\n\n /**\n @dev Handles the receipt of a multiple ERC1155 token types. This function\n is called at the end of a `safeBatchTransferFrom` after the balances have\n been updated. To accept the transfer(s), this must return\n `bytes4(keccak256(\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\"))`\n (i.e. 0xbc197c81, or its own function selector).\n @param operator The address which initiated the batch transfer (i.e. msg.sender)\n @param from The address which previously owned the token\n @param ids An array containing ids of each token being transferred (order and length must match values array)\n @param values An array containing amounts of each token being transferred (order and length must match ids array)\n @param data Additional data with no specified format\n @return `bytes4(keccak256(\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\"))` if transfer is allowed\n */\n function onERC1155BatchReceived(\n address operator,\n address from,\n uint256[] calldata ids,\n uint256[] calldata values,\n bytes calldata data\n ) external returns (bytes4);\n}\n" }, "@openzeppelin/contracts/utils/introspection/ERC165.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n" }, "@openzeppelin/contracts/utils/Address.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize, which returns 0 for contracts in\n // construction, since the code is only stored at the end of the\n // constructor execution.\n\n uint256 size;\n assembly {\n size := extcodesize(account)\n }\n return size > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n" } }, "settings": { "optimizer": { "enabled": false, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} } }}
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// SPDX-License-Identifier: LGPL-3.0-or-later // Taken from: https://github.com/gnosis/safe-contracts/blob/development/contracts/proxies/GnosisSafeProxy.sol pragma solidity ^0.7.0; /// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain /// @author Richard Meissner - <richard@gnosis.io> interface IProxy { function masterCopy() external view returns (address); } /// @title WalletProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract. /// @author Stefan George - <stefan@gnosis.io> /// @author Richard Meissner - <richard@gnosis.io> contract WalletProxy { // masterCopy always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated. // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt` address internal masterCopy; /// @dev Constructor function sets address of master copy contract. /// @param _masterCopy Master copy address. constructor(address _masterCopy) { require(_masterCopy != address(0), "Invalid master copy address provided"); masterCopy = _masterCopy; } /// @dev Fallback function forwards all transactions and returns all received return data. fallback() payable external { // solium-disable-next-line security/no-inline-assembly assembly { let _masterCopy := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff) // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) { mstore(0, _masterCopy) return(0, 0x20) } calldatacopy(0, 0, calldatasize()) let success := delegatecall(gas(), _masterCopy, 0, calldatasize(), 0, 0) returndatacopy(0, 0, returndatasize()) if eq(success, 0) { revert(0, returndatasize()) } return(0, returndatasize()) } } }
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{{ "language": "Solidity", "sources": { "@openzeppelin/contracts-upgradeable/interfaces/IERC2981Upgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165Upgradeable.sol\";\n\n/**\n * @dev Interface for the NFT Royalty Standard.\n *\n * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal\n * support for royalty payments across all NFT marketplaces and ecosystem participants.\n *\n * _Available since v4.5._\n */\ninterface IERC2981Upgradeable is IERC165Upgradeable {\n /**\n * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of\n * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.\n */\n function royaltyInfo(uint256 tokenId, uint256 salePrice)\n external\n view\n returns (address receiver, uint256 royaltyAmount);\n}\n" }, "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (proxy/utils/Initializable.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\n * case an upgrade adds a module that needs to be initialized.\n *\n * For example:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * contract MyToken is ERC20Upgradeable {\n * function initialize() initializer public {\n * __ERC20_init(\"MyToken\", \"MTK\");\n * }\n * }\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n * function initializeV2() reinitializer(2) public {\n * __ERC20Permit_init(\"MyToken\");\n * }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n * _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n /**\n * @dev Indicates that the contract has been initialized.\n * @custom:oz-retyped-from bool\n */\n uint8 private _initialized;\n\n /**\n * @dev Indicates that the contract is in the process of being initialized.\n */\n bool private _initializing;\n\n /**\n * @dev Triggered when the contract has been initialized or reinitialized.\n */\n event Initialized(uint8 version);\n\n /**\n * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n * `onlyInitializing` functions can be used to initialize parent contracts.\n *\n * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\n * constructor.\n *\n * Emits an {Initialized} event.\n */\n modifier initializer() {\n bool isTopLevelCall = !_initializing;\n require(\n (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\n \"Initializable: contract is already initialized\"\n );\n _initialized = 1;\n if (isTopLevelCall) {\n _initializing = true;\n }\n _;\n if (isTopLevelCall) {\n _initializing = false;\n emit Initialized(1);\n }\n }\n\n /**\n * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n * used to initialize parent contracts.\n *\n * A reinitializer may be used after the original initialization step. This is essential to configure modules that\n * are added through upgrades and that require initialization.\n *\n * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\n * cannot be nested. If one is invoked in the context of another, execution will revert.\n *\n * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n * a contract, executing them in the right order is up to the developer or operator.\n *\n * WARNING: setting the version to 255 will prevent any future reinitialization.\n *\n * Emits an {Initialized} event.\n */\n modifier reinitializer(uint8 version) {\n require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\n _initialized = version;\n _initializing = true;\n _;\n _initializing = false;\n emit Initialized(version);\n }\n\n /**\n * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n * {initializer} and {reinitializer} modifiers, directly or indirectly.\n */\n modifier onlyInitializing() {\n require(_initializing, \"Initializable: contract is not initializing\");\n _;\n }\n\n /**\n * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n * through proxies.\n *\n * Emits an {Initialized} event the first time it is successfully executed.\n */\n function _disableInitializers() internal virtual {\n require(!_initializing, \"Initializable: contract is initializing\");\n if (_initialized < type(uint8).max) {\n _initialized = type(uint8).max;\n emit Initialized(type(uint8).max);\n }\n }\n\n /**\n * @dev Internal function that returns the initialized version. Returns `_initialized`\n */\n function _getInitializedVersion() internal view returns (uint8) {\n return _initialized;\n }\n\n /**\n * @dev Internal function that returns the initialized version. Returns `_initializing`\n */\n function _isInitializing() internal view returns (bool) {\n return _initializing;\n }\n}\n" }, "@openzeppelin/contracts-upgradeable/token/common/ERC2981Upgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/common/ERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../interfaces/IERC2981Upgradeable.sol\";\nimport \"../../utils/introspection/ERC165Upgradeable.sol\";\nimport \"../../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information.\n *\n * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for\n * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first.\n *\n * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the\n * fee is specified in basis points by default.\n *\n * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See\n * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to\n * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported.\n *\n * _Available since v4.5._\n */\nabstract contract ERC2981Upgradeable is Initializable, IERC2981Upgradeable, ERC165Upgradeable {\n function __ERC2981_init() internal onlyInitializing {\n }\n\n function __ERC2981_init_unchained() internal onlyInitializing {\n }\n struct RoyaltyInfo {\n address receiver;\n uint96 royaltyFraction;\n }\n\n RoyaltyInfo private _defaultRoyaltyInfo;\n mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo;\n\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165Upgradeable, ERC165Upgradeable) returns (bool) {\n return interfaceId == type(IERC2981Upgradeable).interfaceId || super.supportsInterface(interfaceId);\n }\n\n /**\n * @inheritdoc IERC2981Upgradeable\n */\n function royaltyInfo(uint256 _tokenId, uint256 _salePrice) public view virtual override returns (address, uint256) {\n RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId];\n\n if (royalty.receiver == address(0)) {\n royalty = _defaultRoyaltyInfo;\n }\n\n uint256 royaltyAmount = (_salePrice * royalty.royaltyFraction) / _feeDenominator();\n\n return (royalty.receiver, royaltyAmount);\n }\n\n /**\n * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a\n * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an\n * override.\n */\n function _feeDenominator() internal pure virtual returns (uint96) {\n return 10000;\n }\n\n /**\n * @dev Sets the royalty information that all ids in this contract will default to.\n *\n * Requirements:\n *\n * - `receiver` cannot be the zero address.\n * - `feeNumerator` cannot be greater than the fee denominator.\n */\n function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {\n require(feeNumerator <= _feeDenominator(), \"ERC2981: royalty fee will exceed salePrice\");\n require(receiver != address(0), \"ERC2981: invalid receiver\");\n\n _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator);\n }\n\n /**\n * @dev Removes default royalty information.\n */\n function _deleteDefaultRoyalty() internal virtual {\n delete _defaultRoyaltyInfo;\n }\n\n /**\n * @dev Sets the royalty information for a specific token id, overriding the global default.\n *\n * Requirements:\n *\n * - `receiver` cannot be the zero address.\n * - `feeNumerator` cannot be greater than the fee denominator.\n */\n function _setTokenRoyalty(\n uint256 tokenId,\n address receiver,\n uint96 feeNumerator\n ) internal virtual {\n require(feeNumerator <= _feeDenominator(), \"ERC2981: royalty fee will exceed salePrice\");\n require(receiver != address(0), \"ERC2981: Invalid parameters\");\n\n _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator);\n }\n\n /**\n * @dev Resets royalty information for the token id back to the global default.\n */\n function _resetTokenRoyalty(uint256 tokenId) internal virtual {\n delete _tokenRoyaltyInfo[tokenId];\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[48] private __gap;\n}\n" }, "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20Upgradeable {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n" }, "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n" }, "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165Upgradeable.sol\";\nimport \"../../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {\n function __ERC165_init() internal onlyInitializing {\n }\n\n function __ERC165_init_unchained() internal onlyInitializing {\n }\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165Upgradeable).interfaceId;\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[50] private __gap;\n}\n" }, "@openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165Upgradeable {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n" }, "closedsea/src/OperatorFilterer.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.4;\n\n/// @notice Optimized and flexible operator filterer to abide to OpenSea's\n/// mandatory on-chain royalty enforcement in order for new collections to\n/// receive royalties.\n/// For more information, see:\n/// See: https://github.com/ProjectOpenSea/operator-filter-registry\nabstract contract OperatorFilterer {\n /// @dev The default OpenSea operator blocklist subscription.\n address internal constant _DEFAULT_SUBSCRIPTION = 0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6;\n\n /// @dev The OpenSea operator filter registry.\n address internal constant _OPERATOR_FILTER_REGISTRY = 0x000000000000AAeB6D7670E522A718067333cd4E;\n\n /// @dev Registers the current contract to OpenSea's operator filter,\n /// and subscribe to the default OpenSea operator blocklist.\n /// Note: Will not revert nor update existing settings for repeated registration.\n function _registerForOperatorFiltering() internal virtual {\n _registerForOperatorFiltering(_DEFAULT_SUBSCRIPTION, true);\n }\n\n /// @dev Registers the current contract to OpenSea's operator filter.\n /// Note: Will not revert nor update existing settings for repeated registration.\n function _registerForOperatorFiltering(address subscriptionOrRegistrantToCopy, bool subscribe)\n internal\n virtual\n {\n /// @solidity memory-safe-assembly\n assembly {\n let functionSelector := 0x7d3e3dbe // `registerAndSubscribe(address,address)`.\n\n // Clean the upper 96 bits of `subscriptionOrRegistrantToCopy` in case they are dirty.\n subscriptionOrRegistrantToCopy := shr(96, shl(96, subscriptionOrRegistrantToCopy))\n\n for {} iszero(subscribe) {} {\n if iszero(subscriptionOrRegistrantToCopy) {\n functionSelector := 0x4420e486 // `register(address)`.\n break\n }\n functionSelector := 0xa0af2903 // `registerAndCopyEntries(address,address)`.\n break\n }\n // Store the function selector.\n mstore(0x00, shl(224, functionSelector))\n // Store the `address(this)`.\n mstore(0x04, address())\n // Store the `subscriptionOrRegistrantToCopy`.\n mstore(0x24, subscriptionOrRegistrantToCopy)\n // Register into the registry.\n if iszero(call(gas(), _OPERATOR_FILTER_REGISTRY, 0, 0x00, 0x44, 0x00, 0x04)) {\n // If the function selector has not been overwritten,\n // it is an out-of-gas error.\n if eq(shr(224, mload(0x00)), functionSelector) {\n // To prevent gas under-estimation.\n revert(0, 0)\n }\n }\n // Restore the part of the free memory pointer that was overwritten,\n // which is guaranteed to be zero, because of Solidity's memory size limits.\n mstore(0x24, 0)\n }\n }\n\n /// @dev Modifier to guard a function and revert if the caller is a blocked operator.\n modifier onlyAllowedOperator(address from) virtual {\n if (from != msg.sender) {\n if (!_isPriorityOperator(msg.sender)) {\n if (_operatorFilteringEnabled()) _revertIfBlocked(msg.sender);\n }\n }\n _;\n }\n\n /// @dev Modifier to guard a function from approving a blocked operator..\n modifier onlyAllowedOperatorApproval(address operator) virtual {\n if (!_isPriorityOperator(operator)) {\n if (_operatorFilteringEnabled()) _revertIfBlocked(operator);\n }\n _;\n }\n\n /// @dev Helper function that reverts if the `operator` is blocked by the registry.\n function _revertIfBlocked(address operator) private view {\n /// @solidity memory-safe-assembly\n assembly {\n // Store the function selector of `isOperatorAllowed(address,address)`,\n // shifted left by 6 bytes, which is enough for 8tb of memory.\n // We waste 6-3 = 3 bytes to save on 6 runtime gas (PUSH1 0x224 SHL).\n mstore(0x00, 0xc6171134001122334455)\n // Store the `address(this)`.\n mstore(0x1a, address())\n // Store the `operator`.\n mstore(0x3a, operator)\n\n // `isOperatorAllowed` always returns true if it does not revert.\n if iszero(staticcall(gas(), _OPERATOR_FILTER_REGISTRY, 0x16, 0x44, 0x00, 0x00)) {\n // Bubble up the revert if the staticcall reverts.\n returndatacopy(0x00, 0x00, returndatasize())\n revert(0x00, returndatasize())\n }\n\n // We'll skip checking if `from` is inside the blacklist.\n // Even though that can block transferring out of wrapper contracts,\n // we don't want tokens to be stuck.\n\n // Restore the part of the free memory pointer that was overwritten,\n // which is guaranteed to be zero, if less than 8tb of memory is used.\n mstore(0x3a, 0)\n }\n }\n\n /// @dev For deriving contracts to override, so that operator filtering\n /// can be turned on / off.\n /// Returns true by default.\n function _operatorFilteringEnabled() internal view virtual returns (bool) {\n return true;\n }\n\n /// @dev For deriving contracts to override, so that preferred marketplaces can\n /// skip operator filtering, helping users save gas.\n /// Returns false for all inputs by default.\n function _isPriorityOperator(address) internal view virtual returns (bool) {\n return false;\n }\n}\n" }, "contracts/Archetype.sol": { "content": "// SPDX-License-Identifier: MIT\n// Archetype v0.6.2\n//\n// d8888 888 888\n// d88888 888 888\n// d88P888 888 888\n// d88P 888 888d888 .d8888b 88888b. .d88b. 888888 888 888 88888b. .d88b.\n// d88P 888 888P\" d88P\" 888 \"88b d8P Y8b 888 888 888 888 \"88b d8P Y8b\n// d88P 888 888 888 888 888 88888888 888 888 888 888 888 88888888\n// d8888888888 888 Y88b. 888 888 Y8b. Y88b. Y88b 888 888 d88P Y8b.\n// d88P 888 888 \"Y8888P 888 888 \"Y8888 \"Y888 \"Y88888 88888P\" \"Y8888\n// 888 888\n// Y8b d88P 888\n// \"Y88P\" 888\n\npragma solidity ^0.8.4;\n\nimport \"./ArchetypeLogic.sol\";\nimport \"erc721a-upgradeable/contracts/ERC721AUpgradeable.sol\";\nimport \"erc721a-upgradeable/contracts/ERC721A__Initializable.sol\";\nimport \"erc721a-upgradeable/contracts/extensions/ERC721AQueryableUpgradeable.sol\";\nimport \"./ERC721A__OwnableUpgradeable.sol\";\nimport \"solady/src/utils/LibString.sol\";\nimport \"closedsea/src/OperatorFilterer.sol\";\nimport \"@openzeppelin/contracts-upgradeable/token/common/ERC2981Upgradeable.sol\";\n\ncontract Archetype is\n ERC721A__Initializable,\n ERC721AUpgradeable,\n OperatorFilterer,\n ERC721A__OwnableUpgradeable,\n ERC2981Upgradeable,\n ERC721AQueryableUpgradeable\n{\n //\n // EVENTS\n //\n event Invited(bytes32 indexed key, bytes32 indexed cid);\n event Referral(address indexed affiliate, address token, uint128 wad, uint256 numMints);\n event Withdrawal(address indexed src, address token, uint128 wad);\n\n //\n // VARIABLES\n //\n mapping(bytes32 => DutchInvite) public invites;\n mapping(address => mapping(bytes32 => uint256)) private _minted;\n mapping(bytes32 => uint256) private _listSupply;\n mapping(address => OwnerBalance) private _ownerBalance;\n mapping(address => mapping(address => uint128)) private _affiliateBalance;\n\n Config public config;\n BurnConfig public burnConfig;\n Options public options;\n\n //\n // METHODS\n //\n function initialize(\n string memory name,\n string memory symbol,\n Config calldata config_,\n address _receiver\n ) external initializerERC721A {\n __ERC721A_init(name, symbol);\n // check max bps not reached and min platform fee.\n if (\n config_.affiliateFee > MAXBPS ||\n config_.platformFee > MAXBPS ||\n config_.platformFee < 500 ||\n config_.discounts.affiliateDiscount > MAXBPS ||\n config_.affiliateSigner == address(0) ||\n config_.maxBatchSize == 0\n ) {\n revert InvalidConfig();\n }\n // ensure mint tiers are correctly ordered from highest to lowest.\n for (uint256 i = 1; i < config_.discounts.mintTiers.length; ) {\n if (\n config_.discounts.mintTiers[i].mintDiscount > MAXBPS ||\n config_.discounts.mintTiers[i].numMints > config_.discounts.mintTiers[i - 1].numMints\n ) {\n revert InvalidConfig();\n }\n unchecked {\n ++i;\n }\n }\n config = config_;\n __Ownable_init();\n\n if (config.ownerAltPayout != address(0)) {\n setDefaultRoyalty(config.ownerAltPayout, config.defaultRoyalty);\n } else {\n setDefaultRoyalty(_receiver, config.defaultRoyalty);\n }\n }\n\n //\n // PUBLIC\n //\n function mint(\n Auth calldata auth,\n uint256 quantity,\n address affiliate,\n bytes calldata signature\n ) external payable {\n mintTo(auth, quantity, _msgSender(), affiliate, signature);\n }\n\n function batchMintTo(\n Auth calldata auth,\n address[] calldata toList,\n uint256[] calldata quantityList,\n address affiliate,\n bytes calldata signature\n ) external payable {\n if (quantityList.length != toList.length) {\n revert InvalidConfig();\n }\n\n DutchInvite storage invite = invites[auth.key];\n uint256 quantity;\n\n for (uint256 i; i < toList.length; ) {\n uint256 quantityToAdd;\n if (invite.unitSize > 1) {\n quantityToAdd = quantityList[i] * invite.unitSize;\n } else {\n quantityToAdd = quantityList[i];\n }\n quantity += quantityToAdd;\n\n _mint(toList[i], quantityToAdd);\n\n unchecked {\n ++i;\n }\n }\n\n ValidationArgs memory args;\n {\n args = ValidationArgs({\n owner: owner(),\n affiliate: affiliate,\n quantity: quantity,\n curSupply: _totalMinted(),\n listSupply: _listSupply[auth.key]\n });\n }\n\n uint128 cost = uint128(\n ArchetypeLogic.computePrice(\n invite,\n config.discounts,\n args.quantity,\n args.listSupply,\n args.affiliate != address(0)\n )\n );\n\n ArchetypeLogic.validateMint(invite, config, auth, _minted, signature, args, cost);\n\n if (invite.limit < invite.maxSupply) {\n _minted[_msgSender()][auth.key] += quantity;\n }\n if (invite.maxSupply < UINT32_MAX) {\n _listSupply[auth.key] += quantity;\n }\n\n ArchetypeLogic.updateBalances(\n invite,\n config,\n _ownerBalance,\n _affiliateBalance,\n affiliate,\n quantity,\n cost\n );\n\n if (msg.value > cost) {\n _refund(_msgSender(), msg.value - cost);\n }\n }\n\n function mintTo(\n Auth calldata auth,\n uint256 quantity,\n address to,\n address affiliate,\n bytes calldata signature\n ) public payable {\n DutchInvite storage i = invites[auth.key];\n\n if (i.unitSize > 1) {\n quantity = quantity * i.unitSize;\n }\n\n ValidationArgs memory args;\n {\n args = ValidationArgs({\n owner: owner(),\n affiliate: affiliate,\n quantity: quantity,\n curSupply: _totalMinted(),\n listSupply: _listSupply[auth.key]\n });\n }\n\n uint128 cost = uint128(\n ArchetypeLogic.computePrice(\n i,\n config.discounts,\n args.quantity,\n args.listSupply,\n args.affiliate != address(0)\n )\n );\n\n ArchetypeLogic.validateMint(i, config, auth, _minted, signature, args, cost);\n\n _mint(to, quantity);\n\n if (i.limit < i.maxSupply) {\n _minted[_msgSender()][auth.key] += quantity;\n }\n if (i.maxSupply < UINT32_MAX) {\n _listSupply[auth.key] += quantity;\n }\n\n ArchetypeLogic.updateBalances(\n i,\n config,\n _ownerBalance,\n _affiliateBalance,\n affiliate,\n quantity,\n cost\n );\n\n if (msg.value > cost) {\n _refund(_msgSender(), msg.value - cost);\n }\n }\n\n function burnToMint(uint256[] calldata tokenIds) external {\n uint256 curSupply = _totalMinted();\n ArchetypeLogic.validateBurnToMint(config, burnConfig, tokenIds, curSupply, _minted);\n\n address msgSender = _msgSender();\n for (uint256 i; i < tokenIds.length; ) {\n address burnAddress = burnConfig.burnAddress != address(0)\n ? burnConfig.burnAddress\n : address(0x000000000000000000000000000000000000dEaD);\n burnConfig.archetype.transferFrom(msgSender, burnAddress, tokenIds[i]);\n unchecked {\n ++i;\n }\n }\n\n uint256 quantity = burnConfig.reversed\n ? tokenIds.length * burnConfig.ratio\n : tokenIds.length / burnConfig.ratio;\n _mint(msgSender, quantity);\n\n if (burnConfig.limit < config.maxSupply) {\n _minted[msgSender][bytes32(\"burn\")] += quantity;\n }\n }\n\n function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\n\n return\n bytes(config.baseUri).length != 0\n ? string(abi.encodePacked(config.baseUri, LibString.toString(tokenId)))\n : \"\";\n }\n\n function withdraw() external {\n address[] memory tokens = new address[](1);\n tokens[0] = address(0);\n withdrawTokens(tokens);\n }\n\n function withdrawTokens(address[] memory tokens) public {\n ArchetypeLogic.withdrawTokens(config, _ownerBalance, _affiliateBalance, owner(), tokens);\n }\n\n function ownerBalance() external view returns (OwnerBalance memory) {\n return _ownerBalance[address(0)];\n }\n\n function ownerBalanceToken(address token) external view returns (OwnerBalance memory) {\n return _ownerBalance[token];\n }\n\n function affiliateBalance(address affiliate) external view returns (uint128) {\n return _affiliateBalance[affiliate][address(0)];\n }\n\n function affiliateBalanceToken(address affiliate, address token) external view returns (uint128) {\n return _affiliateBalance[affiliate][token];\n }\n\n function minted(address minter, bytes32 key) external view returns (uint256) {\n return _minted[minter][key];\n }\n\n function listSupply(bytes32 key) external view returns (uint256) {\n return _listSupply[key];\n }\n\n function platform() external pure returns (address) {\n return PLATFORM;\n }\n\n function computePrice(\n bytes32 key,\n uint256 quantity,\n bool affiliateUsed\n ) external view returns (uint256) {\n DutchInvite storage i = invites[key];\n uint256 listSupply_ = _listSupply[key];\n return ArchetypeLogic.computePrice(i, config.discounts, quantity, listSupply_, affiliateUsed);\n }\n\n //\n // OWNER ONLY\n //\n\n function setBaseURI(string memory baseUri) external _onlyOwner {\n if (options.uriLocked) {\n revert LockedForever();\n }\n\n config.baseUri = baseUri;\n }\n\n /// @notice the password is \"forever\"\n function lockURI(string memory password) external _onlyOwner {\n if (keccak256(abi.encodePacked(password)) != keccak256(abi.encodePacked(\"forever\"))) {\n revert WrongPassword();\n }\n\n options.uriLocked = true;\n }\n\n /// @notice the password is \"forever\"\n // max supply cannot subceed total supply. Be careful changing.\n function setMaxSupply(uint32 maxSupply, string memory password) external _onlyOwner {\n if (keccak256(abi.encodePacked(password)) != keccak256(abi.encodePacked(\"forever\"))) {\n revert WrongPassword();\n }\n\n if (options.maxSupplyLocked) {\n revert LockedForever();\n }\n\n if (maxSupply < _totalMinted()) {\n revert MaxSupplyExceeded();\n }\n\n config.maxSupply = maxSupply;\n }\n\n /// @notice the password is \"forever\"\n function lockMaxSupply(string memory password) external _onlyOwner {\n if (keccak256(abi.encodePacked(password)) != keccak256(abi.encodePacked(\"forever\"))) {\n revert WrongPassword();\n }\n\n options.maxSupplyLocked = true;\n }\n\n function setAffiliateFee(uint16 affiliateFee) external _onlyOwner {\n if (options.affiliateFeeLocked) {\n revert LockedForever();\n }\n if (affiliateFee > MAXBPS) {\n revert InvalidConfig();\n }\n\n config.affiliateFee = affiliateFee;\n }\n\n /// @notice the password is \"forever\"\n function lockAffiliateFee(string memory password) external _onlyOwner {\n if (keccak256(abi.encodePacked(password)) != keccak256(abi.encodePacked(\"forever\"))) {\n revert WrongPassword();\n }\n\n options.affiliateFeeLocked = true;\n }\n\n function setDiscounts(Discount calldata discounts) external _onlyOwner {\n if (options.discountsLocked) {\n revert LockedForever();\n }\n\n if (discounts.affiliateDiscount > MAXBPS) {\n revert InvalidConfig();\n }\n\n // ensure mint tiers are correctly ordered from highest to lowest.\n for (uint256 i = 1; i < discounts.mintTiers.length; ) {\n if (\n discounts.mintTiers[i].mintDiscount > MAXBPS ||\n discounts.mintTiers[i].numMints > discounts.mintTiers[i - 1].numMints\n ) {\n revert InvalidConfig();\n }\n unchecked {\n ++i;\n }\n }\n\n config.discounts = discounts;\n }\n\n /// @notice the password is \"forever\"\n function lockDiscounts(string memory password) external _onlyOwner {\n if (keccak256(abi.encodePacked(password)) != keccak256(abi.encodePacked(\"forever\"))) {\n revert WrongPassword();\n }\n\n options.discountsLocked = true;\n }\n\n function setOwnerAltPayout(address ownerAltPayout) external _onlyOwner {\n if (options.ownerAltPayoutLocked) {\n revert LockedForever();\n }\n\n config.ownerAltPayout = ownerAltPayout;\n }\n\n /// @notice the password is \"forever\"\n function lockOwnerAltPayout(string memory password) external _onlyOwner {\n if (keccak256(abi.encodePacked(password)) != keccak256(abi.encodePacked(\"forever\"))) {\n revert WrongPassword();\n }\n\n options.ownerAltPayoutLocked = true;\n }\n\n function setMaxBatchSize(uint32 maxBatchSize) external _onlyOwner {\n config.maxBatchSize = maxBatchSize;\n }\n\n function setInvite(\n bytes32 _key,\n bytes32 _cid,\n Invite calldata _invite\n ) external _onlyOwner {\n invites[_key] = DutchInvite({\n price: _invite.price,\n reservePrice: _invite.price,\n delta: 0,\n start: _invite.start,\n end: _invite.end,\n limit: _invite.limit,\n maxSupply: _invite.maxSupply,\n interval: 0,\n unitSize: _invite.unitSize,\n tokenAddress: _invite.tokenAddress,\n isBlacklist: _invite.isBlacklist\n });\n emit Invited(_key, _cid);\n }\n\n function setDutchInvite(\n bytes32 _key,\n bytes32 _cid,\n DutchInvite memory _dutchInvite\n ) external _onlyOwner {\n if (_dutchInvite.start < block.timestamp) {\n _dutchInvite.start = uint32(block.timestamp);\n }\n invites[_key] = _dutchInvite;\n emit Invited(_key, _cid);\n }\n\n function enableBurnToMint(\n address archetype,\n address burnAddress,\n bool reversed,\n uint16 ratio,\n uint64 start,\n uint64 limit\n ) external _onlyOwner {\n burnConfig = BurnConfig({\n archetype: IERC721AUpgradeable(archetype),\n burnAddress: burnAddress,\n enabled: true,\n reversed: reversed,\n ratio: ratio,\n start: start,\n limit: limit\n });\n }\n\n function disableBurnToMint() external _onlyOwner {\n burnConfig = BurnConfig({\n archetype: IERC721AUpgradeable(address(0)),\n burnAddress: address(0),\n enabled: false,\n reversed: false,\n ratio: 0,\n start: 0,\n limit: 0\n });\n }\n\n //\n // PLATFORM ONLY\n //\n function setSuperAffiliatePayout(address superAffiliatePayout) external _onlyPlatform {\n config.superAffiliatePayout = superAffiliatePayout;\n }\n\n //\n // INTERNAL\n //\n function _startTokenId() internal view virtual override returns (uint256) {\n return 1;\n }\n\n function _msgSender() internal view returns (address) {\n return msg.sender == BATCH ? tx.origin : msg.sender;\n }\n\n modifier _onlyPlatform() {\n if (_msgSender() != PLATFORM) {\n revert NotPlatform();\n }\n _;\n }\n\n modifier _onlyOwner() {\n if (_msgSender() != owner()) {\n revert NotOwner();\n }\n _;\n }\n\n function _refund(address to, uint256 refund) internal {\n (bool success, ) = payable(to).call{ value: refund }(\"\");\n if (!success) {\n revert TransferFailed();\n }\n }\n\n // OPTIONAL ROYALTY ENFORCEMENT WITH OPENSEA\n function enableRoyaltyEnforcement() external _onlyOwner {\n if (options.royaltyEnforcementLocked) {\n revert LockedForever();\n }\n _registerForOperatorFiltering();\n options.royaltyEnforcementEnabled = true;\n }\n\n function disableRoyaltyEnforcement() external _onlyOwner {\n if (options.royaltyEnforcementLocked) {\n revert LockedForever();\n }\n options.royaltyEnforcementEnabled = false;\n }\n\n /// @notice the password is \"forever\"\n function lockRoyaltyEnforcement(string memory password) external _onlyOwner {\n if (keccak256(abi.encodePacked(password)) != keccak256(abi.encodePacked(\"forever\"))) {\n revert WrongPassword();\n }\n\n options.royaltyEnforcementLocked = true;\n }\n\n function setApprovalForAll(address operator, bool approved)\n public\n override\n onlyAllowedOperatorApproval(operator)\n {\n super.setApprovalForAll(operator, approved);\n }\n\n function approve(address operator, uint256 tokenId)\n public\n payable\n override\n onlyAllowedOperatorApproval(operator)\n {\n super.approve(operator, tokenId);\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public payable override onlyAllowedOperator(from) {\n super.transferFrom(from, to, tokenId);\n }\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public payable override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId);\n }\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public payable override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId, data);\n }\n\n function _operatorFilteringEnabled() internal view override returns (bool) {\n return options.royaltyEnforcementEnabled;\n }\n\n //ERC2981 ROYALTY\n function supportsInterface(bytes4 interfaceId)\n public\n view\n virtual\n override(ERC721AUpgradeable, ERC2981Upgradeable)\n returns (bool)\n {\n // Supports the following `interfaceId`s:\n // - IERC165: 0x01ffc9a7\n // - IERC721: 0x80ac58cd\n // - IERC721Metadata: 0x5b5e139f\n // - IERC2981: 0x2a55205a\n return\n ERC721AUpgradeable.supportsInterface(interfaceId) ||\n ERC2981Upgradeable.supportsInterface(interfaceId);\n }\n\n function setDefaultRoyalty(address receiver, uint16 feeNumerator) public _onlyOwner {\n config.defaultRoyalty = feeNumerator;\n _setDefaultRoyalty(receiver, feeNumerator);\n }\n}\n" }, "contracts/ArchetypeLogic.sol": { "content": "// SPDX-License-Identifier: MIT\n// ArchetypeLogic v0.6.2\n//\n// d8888 888 888\n// d88888 888 888\n// d88P888 888 888\n// d88P 888 888d888 .d8888b 88888b. .d88b. 888888 888 888 88888b. .d88b.\n// d88P 888 888P\" d88P\" 888 \"88b d8P Y8b 888 888 888 888 \"88b d8P Y8b\n// d88P 888 888 888 888 888 88888888 888 888 888 888 888 88888888\n// d8888888888 888 Y88b. 888 888 Y8b. Y88b. Y88b 888 888 d88P Y8b.\n// d88P 888 888 \"Y8888P 888 888 \"Y8888 \"Y888 \"Y88888 88888P\" \"Y8888\n// 888 888\n// Y8b d88P 888\n// \"Y88P\" 888\n\npragma solidity ^0.8.4;\n\nimport \"erc721a-upgradeable/contracts/ERC721AUpgradeable.sol\";\nimport \"@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol\";\nimport \"solady/src/utils/MerkleProofLib.sol\";\nimport \"solady/src/utils/ECDSA.sol\";\n\nerror InvalidConfig();\nerror MintNotYetStarted();\nerror MintEnded();\nerror WalletUnauthorizedToMint();\nerror InsufficientEthSent();\nerror ExcessiveEthSent();\nerror Erc20BalanceTooLow();\nerror MaxSupplyExceeded();\nerror ListMaxSupplyExceeded();\nerror NumberOfMintsExceeded();\nerror MintingPaused();\nerror InvalidReferral();\nerror InvalidSignature();\nerror BalanceEmpty();\nerror TransferFailed();\nerror MaxBatchSizeExceeded();\nerror BurnToMintDisabled();\nerror NotTokenOwner();\nerror NotPlatform();\nerror NotOwner();\nerror NotApprovedToTransfer();\nerror InvalidAmountOfTokens();\nerror WrongPassword();\nerror LockedForever();\nerror Blacklisted();\n\n//\n// STRUCTS\n//\nstruct Auth {\n bytes32 key;\n bytes32[] proof;\n}\n\nstruct MintTier {\n uint16 numMints;\n uint16 mintDiscount; //BPS\n}\n\nstruct Discount {\n uint16 affiliateDiscount; //BPS\n MintTier[] mintTiers;\n}\n\nstruct Config {\n string baseUri;\n address affiliateSigner;\n address ownerAltPayout; // optional alternative address for owner withdrawals.\n address superAffiliatePayout; // optional super affiliate address, will receive half of platform fee if set.\n uint32 maxSupply;\n uint32 maxBatchSize;\n uint16 affiliateFee; //BPS\n uint16 platformFee; //BPS\n uint16 defaultRoyalty; //BPS\n Discount discounts;\n}\n\nstruct Options {\n bool uriLocked;\n bool maxSupplyLocked;\n bool affiliateFeeLocked;\n bool discountsLocked;\n bool ownerAltPayoutLocked;\n bool royaltyEnforcementEnabled;\n bool royaltyEnforcementLocked;\n}\n\nstruct DutchInvite {\n uint128 price;\n uint128 reservePrice;\n uint128 delta;\n uint32 start;\n uint32 end;\n uint32 limit;\n uint32 maxSupply;\n uint32 interval;\n uint32 unitSize; // mint 1 get x\n address tokenAddress;\n bool isBlacklist;\n}\n\nstruct Invite {\n uint128 price;\n uint32 start;\n uint32 end;\n uint32 limit;\n uint32 maxSupply;\n uint32 unitSize; // mint 1 get x\n address tokenAddress;\n bool isBlacklist;\n}\n\nstruct OwnerBalance {\n uint128 owner;\n uint128 platform;\n}\n\nstruct BurnConfig {\n IERC721AUpgradeable archetype;\n address burnAddress;\n bool enabled;\n bool reversed; // side of the ratio (false=burn {ratio} get 1, true=burn 1 get {ratio})\n uint16 ratio;\n uint64 start;\n uint64 limit;\n}\n\nstruct ValidationArgs {\n address owner;\n address affiliate;\n uint256 quantity;\n uint256 curSupply;\n uint256 listSupply;\n}\n\naddress constant PLATFORM = 0x86B82972282Dd22348374bC63fd21620F7ED847B;\naddress constant BATCH = 0x6Bc558A6DC48dEfa0e7022713c23D65Ab26e4Fa7;\nuint16 constant MAXBPS = 5000; // max fee or discount is 50%\nuint32 constant UINT32_MAX = 2**32 - 1;\n\nlibrary ArchetypeLogic {\n //\n // EVENTS\n //\n event Invited(bytes32 indexed key, bytes32 indexed cid);\n event Referral(address indexed affiliate, address token, uint128 wad, uint256 numMints);\n event Withdrawal(address indexed src, address token, uint128 wad);\n\n // calculate price based on affiliate usage and mint discounts\n function computePrice(\n DutchInvite storage invite,\n Discount storage discounts,\n uint256 numTokens,\n uint256 listSupply,\n bool affiliateUsed\n ) public view returns (uint256) {\n uint256 price = invite.price;\n uint256 cost;\n if (invite.interval > 0 && invite.delta > 0) {\n // Apply dutch pricing\n uint256 diff = (((block.timestamp - invite.start) / invite.interval) * invite.delta);\n if (price > invite.reservePrice) {\n if (diff > price - invite.reservePrice) {\n price = invite.reservePrice;\n } else {\n price = price - diff;\n }\n } else if (price < invite.reservePrice) {\n if (diff > invite.reservePrice - price) {\n price = invite.reservePrice;\n } else {\n price = price + diff;\n }\n }\n cost = price * numTokens;\n } else if (invite.interval == 0 && invite.delta > 0) {\n // Apply linear curve\n uint256 lastPrice = price + invite.delta * listSupply;\n cost = lastPrice * numTokens + (invite.delta * numTokens * (numTokens - 1)) / 2;\n } else {\n cost = price * numTokens;\n }\n\n if (affiliateUsed) {\n cost = cost - ((cost * discounts.affiliateDiscount) / 10000);\n }\n\n uint256 numMints = discounts.mintTiers.length;\n for (uint256 i; i < numMints; ) {\n uint256 tierNumMints = discounts.mintTiers[i].numMints;\n if (numTokens >= tierNumMints) {\n return cost - ((cost * discounts.mintTiers[i].mintDiscount) / 10000);\n }\n unchecked {\n ++i;\n }\n }\n return cost;\n }\n\n function validateMint(\n DutchInvite storage i,\n Config storage config,\n Auth calldata auth,\n mapping(address => mapping(bytes32 => uint256)) storage minted,\n bytes calldata signature,\n ValidationArgs memory args,\n uint128 cost\n ) public view {\n address msgSender = _msgSender();\n if (args.affiliate != address(0)) {\n if (\n args.affiliate == PLATFORM || args.affiliate == args.owner || args.affiliate == msgSender\n ) {\n revert InvalidReferral();\n }\n validateAffiliate(args.affiliate, signature, config.affiliateSigner);\n }\n\n if (i.limit == 0) {\n revert MintingPaused();\n }\n\n if (!i.isBlacklist) {\n if (!verify(auth, i.tokenAddress, msgSender)) {\n revert WalletUnauthorizedToMint();\n }\n } else {\n if (verify(auth, i.tokenAddress, msgSender)) {\n revert Blacklisted();\n }\n }\n\n if (block.timestamp < i.start) {\n revert MintNotYetStarted();\n }\n\n if (i.end > i.start && block.timestamp > i.end) {\n revert MintEnded();\n }\n\n if (i.limit < i.maxSupply) {\n uint256 totalAfterMint = minted[msgSender][auth.key] + args.quantity;\n\n if (totalAfterMint > i.limit) {\n revert NumberOfMintsExceeded();\n }\n }\n\n if (i.maxSupply < config.maxSupply) {\n uint256 totalAfterMint = args.listSupply + args.quantity;\n if (totalAfterMint > i.maxSupply) {\n revert ListMaxSupplyExceeded();\n }\n }\n\n if (args.quantity > config.maxBatchSize) {\n revert MaxBatchSizeExceeded();\n }\n\n if ((args.curSupply + args.quantity) > config.maxSupply) {\n revert MaxSupplyExceeded();\n }\n\n if (i.tokenAddress != address(0)) {\n IERC20Upgradeable erc20Token = IERC20Upgradeable(i.tokenAddress);\n if (erc20Token.allowance(msgSender, address(this)) < cost) {\n revert NotApprovedToTransfer();\n }\n\n if (erc20Token.balanceOf(msgSender) < cost) {\n revert Erc20BalanceTooLow();\n }\n\n if (msg.value != 0) {\n revert ExcessiveEthSent();\n }\n } else {\n if (msg.value < cost) {\n revert InsufficientEthSent();\n }\n }\n }\n\n function validateBurnToMint(\n Config storage config,\n BurnConfig storage burnConfig,\n uint256[] calldata tokenIds,\n uint256 curSupply,\n mapping(address => mapping(bytes32 => uint256)) storage minted\n ) public view {\n if (!burnConfig.enabled) {\n revert BurnToMintDisabled();\n }\n\n if (block.timestamp < burnConfig.start) {\n revert MintNotYetStarted();\n }\n\n // check if msgSender owns tokens and has correct approvals\n address msgSender = _msgSender();\n for (uint256 i; i < tokenIds.length; ) {\n if (burnConfig.archetype.ownerOf(tokenIds[i]) != msgSender) {\n revert NotTokenOwner();\n }\n unchecked {\n ++i;\n }\n }\n\n if (!burnConfig.archetype.isApprovedForAll(msgSender, address(this))) {\n revert NotApprovedToTransfer();\n }\n\n uint256 quantity;\n if (burnConfig.reversed) {\n quantity = tokenIds.length * burnConfig.ratio;\n } else {\n if (tokenIds.length % burnConfig.ratio != 0) {\n revert InvalidAmountOfTokens();\n }\n quantity = tokenIds.length / burnConfig.ratio;\n }\n\n if (quantity > config.maxBatchSize) {\n revert MaxBatchSizeExceeded();\n }\n\n if (burnConfig.limit < config.maxSupply) {\n uint256 totalAfterMint = minted[msgSender][bytes32(\"burn\")] + quantity;\n\n if (totalAfterMint > burnConfig.limit) {\n revert NumberOfMintsExceeded();\n }\n }\n\n if ((curSupply + quantity) > config.maxSupply) {\n revert MaxSupplyExceeded();\n }\n }\n\n function updateBalances(\n DutchInvite storage i,\n Config storage config,\n mapping(address => OwnerBalance) storage _ownerBalance,\n mapping(address => mapping(address => uint128)) storage _affiliateBalance,\n address affiliate,\n uint256 quantity,\n uint128 value\n ) public {\n address tokenAddress = i.tokenAddress;\n\n uint128 affiliateWad;\n if (affiliate != address(0)) {\n affiliateWad = (value * config.affiliateFee) / 10000;\n _affiliateBalance[affiliate][tokenAddress] += affiliateWad;\n emit Referral(affiliate, tokenAddress, affiliateWad, quantity);\n }\n\n uint128 superAffiliateWad;\n if (config.superAffiliatePayout != address(0)) {\n superAffiliateWad = ((value * config.platformFee) / 2) / 10000;\n _affiliateBalance[config.superAffiliatePayout][tokenAddress] += superAffiliateWad;\n }\n\n OwnerBalance memory balance = _ownerBalance[tokenAddress];\n uint128 platformWad = ((value * config.platformFee) / 10000) - superAffiliateWad;\n uint128 ownerWad = value - affiliateWad - platformWad - superAffiliateWad;\n _ownerBalance[tokenAddress] = OwnerBalance({\n owner: balance.owner + ownerWad,\n platform: balance.platform + platformWad\n });\n\n if (tokenAddress != address(0)) {\n IERC20Upgradeable erc20Token = IERC20Upgradeable(tokenAddress);\n erc20Token.transferFrom(_msgSender(), address(this), value);\n }\n }\n\n function withdrawTokens(\n Config storage config,\n mapping(address => OwnerBalance) storage _ownerBalance,\n mapping(address => mapping(address => uint128)) storage _affiliateBalance,\n address owner,\n address[] calldata tokens\n ) public {\n address msgSender = _msgSender();\n for (uint256 i; i < tokens.length; ) {\n address tokenAddress = tokens[i];\n uint128 wad;\n\n if (msgSender == owner || msgSender == config.ownerAltPayout || msgSender == PLATFORM) {\n OwnerBalance storage balance = _ownerBalance[tokenAddress];\n if (msgSender == owner || msgSender == config.ownerAltPayout) {\n wad = balance.owner;\n balance.owner = 0;\n } else {\n wad = balance.platform;\n balance.platform = 0;\n }\n } else {\n wad = _affiliateBalance[msgSender][tokenAddress];\n _affiliateBalance[msgSender][tokenAddress] = 0;\n }\n\n if (wad == 0) {\n revert BalanceEmpty();\n }\n\n if (tokenAddress == address(0)) {\n bool success = false;\n // send to ownerAltPayout if set and owner is withdrawing\n if (msgSender == owner && config.ownerAltPayout != address(0)) {\n (success, ) = payable(config.ownerAltPayout).call{ value: wad }(\"\");\n } else {\n (success, ) = msgSender.call{ value: wad }(\"\");\n }\n if (!success) {\n revert TransferFailed();\n }\n } else {\n IERC20Upgradeable erc20Token = IERC20Upgradeable(tokenAddress);\n\n if (msgSender == owner && config.ownerAltPayout != address(0)) {\n erc20Token.transfer(config.ownerAltPayout, wad);\n } else {\n erc20Token.transfer(msgSender, wad);\n }\n }\n emit Withdrawal(msgSender, tokenAddress, wad);\n unchecked {\n ++i;\n }\n }\n }\n\n function validateAffiliate(\n address affiliate,\n bytes calldata signature,\n address affiliateSigner\n ) public view {\n bytes32 signedMessagehash = ECDSA.toEthSignedMessageHash(\n keccak256(abi.encodePacked(affiliate))\n );\n address signer = ECDSA.recover(signedMessagehash, signature);\n\n if (signer != affiliateSigner) {\n revert InvalidSignature();\n }\n }\n\n function verify(\n Auth calldata auth,\n address tokenAddress,\n address account\n ) public pure returns (bool) {\n // keys 0-255 and tokenAddress are public\n if (uint256(auth.key) <= 0xff || auth.key == keccak256(abi.encodePacked(tokenAddress))) {\n return true;\n }\n\n return MerkleProofLib.verify(auth.proof, auth.key, keccak256(abi.encodePacked(account)));\n }\n\n function _msgSender() internal view returns (address) {\n return msg.sender == BATCH ? tx.origin : msg.sender;\n }\n}\n" }, "contracts/ERC721A__OwnableUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)\n\nimport 'erc721a-upgradeable/contracts/ERC721A__Initializable.sol';\nimport 'erc721a-upgradeable/contracts/ERC721AUpgradeable.sol';\n\npragma solidity ^0.8.4;\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract ERC721A__OwnableUpgradeable is ERC721A__Initializable, ERC721AUpgradeable {\n address private _owner;\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n /**\n * @dev Initializes the contract setting the deployer as the initial owner.\n */\n function __Ownable_init() internal onlyInitializingERC721A {\n __Ownable_init_unchained();\n }\n\n function __Ownable_init_unchained() internal onlyInitializingERC721A {\n _transferOwnership(_msgSenderERC721A());\n }\n\n /**\n * @dev Returns the address of the current owner.\n */\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if called by any account other than the owner.\n */\n modifier onlyOwner() {\n _isOwner();\n _;\n }\n\n function _isOwner() internal view {\n require(owner() == _msgSenderERC721A(), \"Ownable: caller is not the owner\");\n }\n\n /**\n * @dev Leaves the contract without owner. It will not be possible to call\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n *\n * NOTE: Renouncing ownership will leave the contract without an owner,\n * thereby removing any functionality that is only available to the owner.\n */\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Can only be called by the current owner.\n */\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n _transferOwnership(newOwner);\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Internal function without access restriction.\n */\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n _owner = newOwner;\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[49] private __gap;\n}\n" }, "erc721a-upgradeable/contracts/ERC721A__Initializable.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\n/**\n * @dev This is a base contract to aid in writing upgradeable diamond facet contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n */\n\nimport {ERC721A__InitializableStorage} from './ERC721A__InitializableStorage.sol';\n\nabstract contract ERC721A__Initializable {\n using ERC721A__InitializableStorage for ERC721A__InitializableStorage.Layout;\n\n /**\n * @dev Modifier to protect an initializer function from being invoked twice.\n */\n modifier initializerERC721A() {\n // If the contract is initializing we ignore whether _initialized is set in order to support multiple\n // inheritance patterns, but we only do this in the context of a constructor, because in other contexts the\n // contract may have been reentered.\n require(\n ERC721A__InitializableStorage.layout()._initializing\n ? _isConstructor()\n : !ERC721A__InitializableStorage.layout()._initialized,\n 'ERC721A__Initializable: contract is already initialized'\n );\n\n bool isTopLevelCall = !ERC721A__InitializableStorage.layout()._initializing;\n if (isTopLevelCall) {\n ERC721A__InitializableStorage.layout()._initializing = true;\n ERC721A__InitializableStorage.layout()._initialized = true;\n }\n\n _;\n\n if (isTopLevelCall) {\n ERC721A__InitializableStorage.layout()._initializing = false;\n }\n }\n\n /**\n * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n * {initializer} modifier, directly or indirectly.\n */\n modifier onlyInitializingERC721A() {\n require(\n ERC721A__InitializableStorage.layout()._initializing,\n 'ERC721A__Initializable: contract is not initializing'\n );\n _;\n }\n\n /// @dev Returns true if and only if the function is running in the constructor\n function _isConstructor() private view returns (bool) {\n // extcodesize checks the size of the code stored in an address, and\n // address returns the current address. Since the code is still not\n // deployed when running a constructor, any checks on its code size will\n // yield zero, making it an effective way to detect if a contract is\n // under construction or not.\n address self = address(this);\n uint256 cs;\n assembly {\n cs := extcodesize(self)\n }\n return cs == 0;\n }\n}\n" }, "erc721a-upgradeable/contracts/ERC721A__InitializableStorage.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/**\n * @dev This is a base storage for the initialization function for upgradeable diamond facet contracts\n **/\n\nlibrary ERC721A__InitializableStorage {\n struct Layout {\n /*\n * Indicates that the contract has been initialized.\n */\n bool _initialized;\n /*\n * Indicates that the contract is in the process of being initialized.\n */\n bool _initializing;\n }\n\n bytes32 internal constant STORAGE_SLOT = keccak256('ERC721A.contracts.storage.initializable.facet');\n\n function layout() internal pure returns (Layout storage l) {\n bytes32 slot = STORAGE_SLOT;\n assembly {\n l.slot := slot\n }\n }\n}\n" }, "erc721a-upgradeable/contracts/ERC721AStorage.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\nlibrary ERC721AStorage {\n // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364).\n struct TokenApprovalRef {\n address value;\n }\n\n struct Layout {\n // =============================================================\n // STORAGE\n // =============================================================\n\n // The next token ID to be minted.\n uint256 _currentIndex;\n // The number of tokens burned.\n uint256 _burnCounter;\n // Token name\n string _name;\n // Token symbol\n string _symbol;\n // Mapping from token ID to ownership details\n // An empty struct value does not necessarily mean the token is unowned.\n // See {_packedOwnershipOf} implementation for details.\n //\n // Bits Layout:\n // - [0..159] `addr`\n // - [160..223] `startTimestamp`\n // - [224] `burned`\n // - [225] `nextInitialized`\n // - [232..255] `extraData`\n mapping(uint256 => uint256) _packedOwnerships;\n // Mapping owner address to address data.\n //\n // Bits Layout:\n // - [0..63] `balance`\n // - [64..127] `numberMinted`\n // - [128..191] `numberBurned`\n // - [192..255] `aux`\n mapping(address => uint256) _packedAddressData;\n // Mapping from token ID to approved address.\n mapping(uint256 => ERC721AStorage.TokenApprovalRef) _tokenApprovals;\n // Mapping from owner to operator approvals\n mapping(address => mapping(address => bool)) _operatorApprovals;\n }\n\n bytes32 internal constant STORAGE_SLOT = keccak256('ERC721A.contracts.storage.ERC721A');\n\n function layout() internal pure returns (Layout storage l) {\n bytes32 slot = STORAGE_SLOT;\n assembly {\n l.slot := slot\n }\n }\n}\n" }, "erc721a-upgradeable/contracts/ERC721AUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.3\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport './IERC721AUpgradeable.sol';\nimport {ERC721AStorage} from './ERC721AStorage.sol';\nimport './ERC721A__Initializable.sol';\n\n/**\n * @dev Interface of ERC721 token receiver.\n */\ninterface ERC721A__IERC721ReceiverUpgradeable {\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n\n/**\n * @title ERC721A\n *\n * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)\n * Non-Fungible Token Standard, including the Metadata extension.\n * Optimized for lower gas during batch mints.\n *\n * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)\n * starting from `_startTokenId()`.\n *\n * Assumptions:\n *\n * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.\n * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).\n */\ncontract ERC721AUpgradeable is ERC721A__Initializable, IERC721AUpgradeable {\n using ERC721AStorage for ERC721AStorage.Layout;\n\n // =============================================================\n // CONSTANTS\n // =============================================================\n\n // Mask of an entry in packed address data.\n uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;\n\n // The bit position of `numberMinted` in packed address data.\n uint256 private constant _BITPOS_NUMBER_MINTED = 64;\n\n // The bit position of `numberBurned` in packed address data.\n uint256 private constant _BITPOS_NUMBER_BURNED = 128;\n\n // The bit position of `aux` in packed address data.\n uint256 private constant _BITPOS_AUX = 192;\n\n // Mask of all 256 bits in packed address data except the 64 bits for `aux`.\n uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;\n\n // The bit position of `startTimestamp` in packed ownership.\n uint256 private constant _BITPOS_START_TIMESTAMP = 160;\n\n // The bit mask of the `burned` bit in packed ownership.\n uint256 private constant _BITMASK_BURNED = 1 << 224;\n\n // The bit position of the `nextInitialized` bit in packed ownership.\n uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;\n\n // The bit mask of the `nextInitialized` bit in packed ownership.\n uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;\n\n // The bit position of `extraData` in packed ownership.\n uint256 private constant _BITPOS_EXTRA_DATA = 232;\n\n // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.\n uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;\n\n // The mask of the lower 160 bits for addresses.\n uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;\n\n // The maximum `quantity` that can be minted with {_mintERC2309}.\n // This limit is to prevent overflows on the address data entries.\n // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}\n // is required to cause an overflow, which is unrealistic.\n uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;\n\n // The `Transfer` event signature is given by:\n // `keccak256(bytes(\"Transfer(address,address,uint256)\"))`.\n bytes32 private constant _TRANSFER_EVENT_SIGNATURE =\n 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;\n\n // =============================================================\n // CONSTRUCTOR\n // =============================================================\n\n function __ERC721A_init(string memory name_, string memory symbol_) internal onlyInitializingERC721A {\n __ERC721A_init_unchained(name_, symbol_);\n }\n\n function __ERC721A_init_unchained(string memory name_, string memory symbol_) internal onlyInitializingERC721A {\n ERC721AStorage.layout()._name = name_;\n ERC721AStorage.layout()._symbol = symbol_;\n ERC721AStorage.layout()._currentIndex = _startTokenId();\n }\n\n // =============================================================\n // TOKEN COUNTING OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the starting token ID.\n * To change the starting token ID, please override this function.\n */\n function _startTokenId() internal view virtual returns (uint256) {\n return 0;\n }\n\n /**\n * @dev Returns the next token ID to be minted.\n */\n function _nextTokenId() internal view virtual returns (uint256) {\n return ERC721AStorage.layout()._currentIndex;\n }\n\n /**\n * @dev Returns the total number of tokens in existence.\n * Burned tokens will reduce the count.\n * To get the total number of tokens minted, please see {_totalMinted}.\n */\n function totalSupply() public view virtual override returns (uint256) {\n // Counter underflow is impossible as _burnCounter cannot be incremented\n // more than `_currentIndex - _startTokenId()` times.\n unchecked {\n return ERC721AStorage.layout()._currentIndex - ERC721AStorage.layout()._burnCounter - _startTokenId();\n }\n }\n\n /**\n * @dev Returns the total amount of tokens minted in the contract.\n */\n function _totalMinted() internal view virtual returns (uint256) {\n // Counter underflow is impossible as `_currentIndex` does not decrement,\n // and it is initialized to `_startTokenId()`.\n unchecked {\n return ERC721AStorage.layout()._currentIndex - _startTokenId();\n }\n }\n\n /**\n * @dev Returns the total number of tokens burned.\n */\n function _totalBurned() internal view virtual returns (uint256) {\n return ERC721AStorage.layout()._burnCounter;\n }\n\n // =============================================================\n // ADDRESS DATA OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the number of tokens in `owner`'s account.\n */\n function balanceOf(address owner) public view virtual override returns (uint256) {\n if (owner == address(0)) revert BalanceQueryForZeroAddress();\n return ERC721AStorage.layout()._packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;\n }\n\n /**\n * Returns the number of tokens minted by `owner`.\n */\n function _numberMinted(address owner) internal view returns (uint256) {\n return\n (ERC721AStorage.layout()._packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY;\n }\n\n /**\n * Returns the number of tokens burned by or on behalf of `owner`.\n */\n function _numberBurned(address owner) internal view returns (uint256) {\n return\n (ERC721AStorage.layout()._packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY;\n }\n\n /**\n * Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).\n */\n function _getAux(address owner) internal view returns (uint64) {\n return uint64(ERC721AStorage.layout()._packedAddressData[owner] >> _BITPOS_AUX);\n }\n\n /**\n * Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).\n * If there are multiple variables, please pack them into a uint64.\n */\n function _setAux(address owner, uint64 aux) internal virtual {\n uint256 packed = ERC721AStorage.layout()._packedAddressData[owner];\n uint256 auxCasted;\n // Cast `aux` with assembly to avoid redundant masking.\n assembly {\n auxCasted := aux\n }\n packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX);\n ERC721AStorage.layout()._packedAddressData[owner] = packed;\n }\n\n // =============================================================\n // IERC165\n // =============================================================\n\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30000 gas.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n // The interface IDs are constants representing the first 4 bytes\n // of the XOR of all function selectors in the interface.\n // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)\n // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)\n return\n interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.\n interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.\n interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.\n }\n\n // =============================================================\n // IERC721Metadata\n // =============================================================\n\n /**\n * @dev Returns the token collection name.\n */\n function name() public view virtual override returns (string memory) {\n return ERC721AStorage.layout()._name;\n }\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() public view virtual override returns (string memory) {\n return ERC721AStorage.layout()._symbol;\n }\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\n\n string memory baseURI = _baseURI();\n return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, _toString(tokenId))) : '';\n }\n\n /**\n * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n * by default, it can be overridden in child contracts.\n */\n function _baseURI() internal view virtual returns (string memory) {\n return '';\n }\n\n // =============================================================\n // OWNERSHIPS OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) public view virtual override returns (address) {\n return address(uint160(_packedOwnershipOf(tokenId)));\n }\n\n /**\n * @dev Gas spent here starts off proportional to the maximum mint batch size.\n * It gradually moves to O(1) as tokens get transferred around over time.\n */\n function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) {\n return _unpackedOwnership(_packedOwnershipOf(tokenId));\n }\n\n /**\n * @dev Returns the unpacked `TokenOwnership` struct at `index`.\n */\n function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) {\n return _unpackedOwnership(ERC721AStorage.layout()._packedOwnerships[index]);\n }\n\n /**\n * @dev Initializes the ownership slot minted at `index` for efficiency purposes.\n */\n function _initializeOwnershipAt(uint256 index) internal virtual {\n if (ERC721AStorage.layout()._packedOwnerships[index] == 0) {\n ERC721AStorage.layout()._packedOwnerships[index] = _packedOwnershipOf(index);\n }\n }\n\n /**\n * Returns the packed ownership data of `tokenId`.\n */\n function _packedOwnershipOf(uint256 tokenId) private view returns (uint256 packed) {\n if (_startTokenId() <= tokenId) {\n packed = ERC721AStorage.layout()._packedOwnerships[tokenId];\n // If not burned.\n if (packed & _BITMASK_BURNED == 0) {\n // If the data at the starting slot does not exist, start the scan.\n if (packed == 0) {\n if (tokenId >= ERC721AStorage.layout()._currentIndex) revert OwnerQueryForNonexistentToken();\n // Invariant:\n // There will always be an initialized ownership slot\n // (i.e. `ownership.addr != address(0) && ownership.burned == false`)\n // before an unintialized ownership slot\n // (i.e. `ownership.addr == address(0) && ownership.burned == false`)\n // Hence, `tokenId` will not underflow.\n //\n // We can directly compare the packed value.\n // If the address is zero, packed will be zero.\n for (;;) {\n unchecked {\n packed = ERC721AStorage.layout()._packedOwnerships[--tokenId];\n }\n if (packed == 0) continue;\n return packed;\n }\n }\n // Otherwise, the data exists and is not burned. We can skip the scan.\n // This is possible because we have already achieved the target condition.\n // This saves 2143 gas on transfers of initialized tokens.\n return packed;\n }\n }\n revert OwnerQueryForNonexistentToken();\n }\n\n /**\n * @dev Returns the unpacked `TokenOwnership` struct from `packed`.\n */\n function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) {\n ownership.addr = address(uint160(packed));\n ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);\n ownership.burned = packed & _BITMASK_BURNED != 0;\n ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);\n }\n\n /**\n * @dev Packs ownership data into a single uint256.\n */\n function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) {\n assembly {\n // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.\n owner := and(owner, _BITMASK_ADDRESS)\n // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.\n result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags))\n }\n }\n\n /**\n * @dev Returns the `nextInitialized` flag set if `quantity` equals 1.\n */\n function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) {\n // For branchless setting of the `nextInitialized` flag.\n assembly {\n // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.\n result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))\n }\n }\n\n // =============================================================\n // APPROVAL OPERATIONS\n // =============================================================\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account. See {ERC721A-_approve}.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n */\n function approve(address to, uint256 tokenId) public payable virtual override {\n _approve(to, tokenId, true);\n }\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) public view virtual override returns (address) {\n if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();\n\n return ERC721AStorage.layout()._tokenApprovals[tokenId].value;\n }\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom}\n * for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool approved) public virtual override {\n ERC721AStorage.layout()._operatorApprovals[_msgSenderERC721A()][operator] = approved;\n emit ApprovalForAll(_msgSenderERC721A(), operator, approved);\n }\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n return ERC721AStorage.layout()._operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Returns whether `tokenId` exists.\n *\n * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n *\n * Tokens start existing when they are minted. See {_mint}.\n */\n function _exists(uint256 tokenId) internal view virtual returns (bool) {\n return\n _startTokenId() <= tokenId &&\n tokenId < ERC721AStorage.layout()._currentIndex && // If within bounds,\n ERC721AStorage.layout()._packedOwnerships[tokenId] & _BITMASK_BURNED == 0; // and not burned.\n }\n\n /**\n * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.\n */\n function _isSenderApprovedOrOwner(\n address approvedAddress,\n address owner,\n address msgSender\n ) private pure returns (bool result) {\n assembly {\n // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.\n owner := and(owner, _BITMASK_ADDRESS)\n // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.\n msgSender := and(msgSender, _BITMASK_ADDRESS)\n // `msgSender == owner || msgSender == approvedAddress`.\n result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))\n }\n }\n\n /**\n * @dev Returns the storage slot and value for the approved address of `tokenId`.\n */\n function _getApprovedSlotAndAddress(uint256 tokenId)\n private\n view\n returns (uint256 approvedAddressSlot, address approvedAddress)\n {\n ERC721AStorage.TokenApprovalRef storage tokenApproval = ERC721AStorage.layout()._tokenApprovals[tokenId];\n // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`.\n assembly {\n approvedAddressSlot := tokenApproval.slot\n approvedAddress := sload(approvedAddressSlot)\n }\n }\n\n // =============================================================\n // TRANSFER OPERATIONS\n // =============================================================\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public payable virtual override {\n uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);\n\n if (address(uint160(prevOwnershipPacked)) != from) revert TransferFromIncorrectOwner();\n\n (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);\n\n // The nested ifs save around 20+ gas over a compound boolean condition.\n if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))\n if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved();\n\n if (to == address(0)) revert TransferToZeroAddress();\n\n _beforeTokenTransfers(from, to, tokenId, 1);\n\n // Clear approvals from the previous owner.\n assembly {\n if approvedAddress {\n // This is equivalent to `delete _tokenApprovals[tokenId]`.\n sstore(approvedAddressSlot, 0)\n }\n }\n\n // Underflow of the sender's balance is impossible because we check for\n // ownership above and the recipient's balance can't realistically overflow.\n // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.\n unchecked {\n // We can directly increment and decrement the balances.\n --ERC721AStorage.layout()._packedAddressData[from]; // Updates: `balance -= 1`.\n ++ERC721AStorage.layout()._packedAddressData[to]; // Updates: `balance += 1`.\n\n // Updates:\n // - `address` to the next owner.\n // - `startTimestamp` to the timestamp of transfering.\n // - `burned` to `false`.\n // - `nextInitialized` to `true`.\n ERC721AStorage.layout()._packedOwnerships[tokenId] = _packOwnershipData(\n to,\n _BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked)\n );\n\n // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .\n if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {\n uint256 nextTokenId = tokenId + 1;\n // If the next slot's address is zero and not burned (i.e. packed value is zero).\n if (ERC721AStorage.layout()._packedOwnerships[nextTokenId] == 0) {\n // If the next slot is within bounds.\n if (nextTokenId != ERC721AStorage.layout()._currentIndex) {\n // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.\n ERC721AStorage.layout()._packedOwnerships[nextTokenId] = prevOwnershipPacked;\n }\n }\n }\n }\n\n emit Transfer(from, to, tokenId);\n _afterTokenTransfers(from, to, tokenId, 1);\n }\n\n /**\n * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public payable virtual override {\n safeTransferFrom(from, to, tokenId, '');\n }\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) public payable virtual override {\n transferFrom(from, to, tokenId);\n if (to.code.length != 0)\n if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {\n revert TransferToNonERC721ReceiverImplementer();\n }\n }\n\n /**\n * @dev Hook that is called before a set of serially-ordered token IDs\n * are about to be transferred. This includes minting.\n * And also called before burning one token.\n *\n * `startTokenId` - the first token ID to be transferred.\n * `quantity` - the amount to be transferred.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, `tokenId` will be burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _beforeTokenTransfers(\n address from,\n address to,\n uint256 startTokenId,\n uint256 quantity\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after a set of serially-ordered token IDs\n * have been transferred. This includes minting.\n * And also called after one token has been burned.\n *\n * `startTokenId` - the first token ID to be transferred.\n * `quantity` - the amount to be transferred.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been\n * transferred to `to`.\n * - When `from` is zero, `tokenId` has been minted for `to`.\n * - When `to` is zero, `tokenId` has been burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _afterTokenTransfers(\n address from,\n address to,\n uint256 startTokenId,\n uint256 quantity\n ) internal virtual {}\n\n /**\n * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.\n *\n * `from` - Previous owner of the given token ID.\n * `to` - Target address that will receive the token.\n * `tokenId` - Token ID to be transferred.\n * `_data` - Optional data to send along with the call.\n *\n * Returns whether the call correctly returned the expected magic value.\n */\n function _checkContractOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) private returns (bool) {\n try\n ERC721A__IERC721ReceiverUpgradeable(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data)\n returns (bytes4 retval) {\n return retval == ERC721A__IERC721ReceiverUpgradeable(to).onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert TransferToNonERC721ReceiverImplementer();\n } else {\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n }\n\n // =============================================================\n // MINT OPERATIONS\n // =============================================================\n\n /**\n * @dev Mints `quantity` tokens and transfers them to `to`.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `quantity` must be greater than 0.\n *\n * Emits a {Transfer} event for each mint.\n */\n function _mint(address to, uint256 quantity) internal virtual {\n uint256 startTokenId = ERC721AStorage.layout()._currentIndex;\n if (quantity == 0) revert MintZeroQuantity();\n\n _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n // Overflows are incredibly unrealistic.\n // `balance` and `numberMinted` have a maximum limit of 2**64.\n // `tokenId` has a maximum limit of 2**256.\n unchecked {\n // Updates:\n // - `balance += quantity`.\n // - `numberMinted += quantity`.\n //\n // We can directly add to the `balance` and `numberMinted`.\n ERC721AStorage.layout()._packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);\n\n // Updates:\n // - `address` to the owner.\n // - `startTimestamp` to the timestamp of minting.\n // - `burned` to `false`.\n // - `nextInitialized` to `quantity == 1`.\n ERC721AStorage.layout()._packedOwnerships[startTokenId] = _packOwnershipData(\n to,\n _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)\n );\n\n uint256 toMasked;\n uint256 end = startTokenId + quantity;\n\n // Use assembly to loop and emit the `Transfer` event for gas savings.\n // The duplicated `log4` removes an extra check and reduces stack juggling.\n // The assembly, together with the surrounding Solidity code, have been\n // delicately arranged to nudge the compiler into producing optimized opcodes.\n assembly {\n // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.\n toMasked := and(to, _BITMASK_ADDRESS)\n // Emit the `Transfer` event.\n log4(\n 0, // Start of data (0, since no data).\n 0, // End of data (0, since no data).\n _TRANSFER_EVENT_SIGNATURE, // Signature.\n 0, // `address(0)`.\n toMasked, // `to`.\n startTokenId // `tokenId`.\n )\n\n // The `iszero(eq(,))` check ensures that large values of `quantity`\n // that overflows uint256 will make the loop run out of gas.\n // The compiler will optimize the `iszero` away for performance.\n for {\n let tokenId := add(startTokenId, 1)\n } iszero(eq(tokenId, end)) {\n tokenId := add(tokenId, 1)\n } {\n // Emit the `Transfer` event. Similar to above.\n log4(0, 0, _TRANSFER_EVENT_SIGNATURE, 0, toMasked, tokenId)\n }\n }\n if (toMasked == 0) revert MintToZeroAddress();\n\n ERC721AStorage.layout()._currentIndex = end;\n }\n _afterTokenTransfers(address(0), to, startTokenId, quantity);\n }\n\n /**\n * @dev Mints `quantity` tokens and transfers them to `to`.\n *\n * This function is intended for efficient minting only during contract creation.\n *\n * It emits only one {ConsecutiveTransfer} as defined in\n * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309),\n * instead of a sequence of {Transfer} event(s).\n *\n * Calling this function outside of contract creation WILL make your contract\n * non-compliant with the ERC721 standard.\n * For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309\n * {ConsecutiveTransfer} event is only permissible during contract creation.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `quantity` must be greater than 0.\n *\n * Emits a {ConsecutiveTransfer} event.\n */\n function _mintERC2309(address to, uint256 quantity) internal virtual {\n uint256 startTokenId = ERC721AStorage.layout()._currentIndex;\n if (to == address(0)) revert MintToZeroAddress();\n if (quantity == 0) revert MintZeroQuantity();\n if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) revert MintERC2309QuantityExceedsLimit();\n\n _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n // Overflows are unrealistic due to the above check for `quantity` to be below the limit.\n unchecked {\n // Updates:\n // - `balance += quantity`.\n // - `numberMinted += quantity`.\n //\n // We can directly add to the `balance` and `numberMinted`.\n ERC721AStorage.layout()._packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);\n\n // Updates:\n // - `address` to the owner.\n // - `startTimestamp` to the timestamp of minting.\n // - `burned` to `false`.\n // - `nextInitialized` to `quantity == 1`.\n ERC721AStorage.layout()._packedOwnerships[startTokenId] = _packOwnershipData(\n to,\n _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)\n );\n\n emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to);\n\n ERC721AStorage.layout()._currentIndex = startTokenId + quantity;\n }\n _afterTokenTransfers(address(0), to, startTokenId, quantity);\n }\n\n /**\n * @dev Safely mints `quantity` tokens and transfers them to `to`.\n *\n * Requirements:\n *\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called for each safe transfer.\n * - `quantity` must be greater than 0.\n *\n * See {_mint}.\n *\n * Emits a {Transfer} event for each mint.\n */\n function _safeMint(\n address to,\n uint256 quantity,\n bytes memory _data\n ) internal virtual {\n _mint(to, quantity);\n\n unchecked {\n if (to.code.length != 0) {\n uint256 end = ERC721AStorage.layout()._currentIndex;\n uint256 index = end - quantity;\n do {\n if (!_checkContractOnERC721Received(address(0), to, index++, _data)) {\n revert TransferToNonERC721ReceiverImplementer();\n }\n } while (index < end);\n // Reentrancy protection.\n if (ERC721AStorage.layout()._currentIndex != end) revert();\n }\n }\n }\n\n /**\n * @dev Equivalent to `_safeMint(to, quantity, '')`.\n */\n function _safeMint(address to, uint256 quantity) internal virtual {\n _safeMint(to, quantity, '');\n }\n\n // =============================================================\n // APPROVAL OPERATIONS\n // =============================================================\n\n /**\n * @dev Equivalent to `_approve(to, tokenId, false)`.\n */\n function _approve(address to, uint256 tokenId) internal virtual {\n _approve(to, tokenId, false);\n }\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the\n * zero address clears previous approvals.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function _approve(\n address to,\n uint256 tokenId,\n bool approvalCheck\n ) internal virtual {\n address owner = ownerOf(tokenId);\n\n if (approvalCheck)\n if (_msgSenderERC721A() != owner)\n if (!isApprovedForAll(owner, _msgSenderERC721A())) {\n revert ApprovalCallerNotOwnerNorApproved();\n }\n\n ERC721AStorage.layout()._tokenApprovals[tokenId].value = to;\n emit Approval(owner, to, tokenId);\n }\n\n // =============================================================\n // BURN OPERATIONS\n // =============================================================\n\n /**\n * @dev Equivalent to `_burn(tokenId, false)`.\n */\n function _burn(uint256 tokenId) internal virtual {\n _burn(tokenId, false);\n }\n\n /**\n * @dev Destroys `tokenId`.\n * The approval is cleared when the token is burned.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits a {Transfer} event.\n */\n function _burn(uint256 tokenId, bool approvalCheck) internal virtual {\n uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);\n\n address from = address(uint160(prevOwnershipPacked));\n\n (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);\n\n if (approvalCheck) {\n // The nested ifs save around 20+ gas over a compound boolean condition.\n if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))\n if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved();\n }\n\n _beforeTokenTransfers(from, address(0), tokenId, 1);\n\n // Clear approvals from the previous owner.\n assembly {\n if approvedAddress {\n // This is equivalent to `delete _tokenApprovals[tokenId]`.\n sstore(approvedAddressSlot, 0)\n }\n }\n\n // Underflow of the sender's balance is impossible because we check for\n // ownership above and the recipient's balance can't realistically overflow.\n // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.\n unchecked {\n // Updates:\n // - `balance -= 1`.\n // - `numberBurned += 1`.\n //\n // We can directly decrement the balance, and increment the number burned.\n // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.\n ERC721AStorage.layout()._packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;\n\n // Updates:\n // - `address` to the last owner.\n // - `startTimestamp` to the timestamp of burning.\n // - `burned` to `true`.\n // - `nextInitialized` to `true`.\n ERC721AStorage.layout()._packedOwnerships[tokenId] = _packOwnershipData(\n from,\n (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked)\n );\n\n // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .\n if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {\n uint256 nextTokenId = tokenId + 1;\n // If the next slot's address is zero and not burned (i.e. packed value is zero).\n if (ERC721AStorage.layout()._packedOwnerships[nextTokenId] == 0) {\n // If the next slot is within bounds.\n if (nextTokenId != ERC721AStorage.layout()._currentIndex) {\n // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.\n ERC721AStorage.layout()._packedOwnerships[nextTokenId] = prevOwnershipPacked;\n }\n }\n }\n }\n\n emit Transfer(from, address(0), tokenId);\n _afterTokenTransfers(from, address(0), tokenId, 1);\n\n // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.\n unchecked {\n ERC721AStorage.layout()._burnCounter++;\n }\n }\n\n // =============================================================\n // EXTRA DATA OPERATIONS\n // =============================================================\n\n /**\n * @dev Directly sets the extra data for the ownership data `index`.\n */\n function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {\n uint256 packed = ERC721AStorage.layout()._packedOwnerships[index];\n if (packed == 0) revert OwnershipNotInitializedForExtraData();\n uint256 extraDataCasted;\n // Cast `extraData` with assembly to avoid redundant masking.\n assembly {\n extraDataCasted := extraData\n }\n packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA);\n ERC721AStorage.layout()._packedOwnerships[index] = packed;\n }\n\n /**\n * @dev Called during each token transfer to set the 24bit `extraData` field.\n * Intended to be overridden by the cosumer contract.\n *\n * `previousExtraData` - the value of `extraData` before transfer.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, `tokenId` will be burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _extraData(\n address from,\n address to,\n uint24 previousExtraData\n ) internal view virtual returns (uint24) {}\n\n /**\n * @dev Returns the next extra data for the packed ownership data.\n * The returned result is shifted into position.\n */\n function _nextExtraData(\n address from,\n address to,\n uint256 prevOwnershipPacked\n ) private view returns (uint256) {\n uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);\n return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;\n }\n\n // =============================================================\n // OTHER OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the message sender (defaults to `msg.sender`).\n *\n * If you are writing GSN compatible contracts, you need to override this function.\n */\n function _msgSenderERC721A() internal view virtual returns (address) {\n return msg.sender;\n }\n\n /**\n * @dev Converts a uint256 to its ASCII string decimal representation.\n */\n function _toString(uint256 value) internal pure virtual returns (string memory str) {\n assembly {\n // The maximum value of a uint256 contains 78 digits (1 byte per digit), but\n // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.\n // We will need 1 word for the trailing zeros padding, 1 word for the length,\n // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.\n let m := add(mload(0x40), 0xa0)\n // Update the free memory pointer to allocate.\n mstore(0x40, m)\n // Assign the `str` to the end.\n str := sub(m, 0x20)\n // Zeroize the slot after the string.\n mstore(str, 0)\n\n // Cache the end of the memory to calculate the length later.\n let end := str\n\n // We write the string from rightmost digit to leftmost digit.\n // The following is essentially a do-while loop that also handles the zero case.\n // prettier-ignore\n for { let temp := value } 1 {} {\n str := sub(str, 1)\n // Write the character to the pointer.\n // The ASCII index of the '0' character is 48.\n mstore8(str, add(48, mod(temp, 10)))\n // Keep dividing `temp` until zero.\n temp := div(temp, 10)\n // prettier-ignore\n if iszero(temp) { break }\n }\n\n let length := sub(end, str)\n // Move the pointer 32 bytes leftwards to make room for the length.\n str := sub(str, 0x20)\n // Store the length.\n mstore(str, length)\n }\n }\n}\n" }, "erc721a-upgradeable/contracts/extensions/ERC721AQueryableUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.3\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport './IERC721AQueryableUpgradeable.sol';\nimport '../ERC721AUpgradeable.sol';\nimport '../ERC721A__Initializable.sol';\n\n/**\n * @title ERC721AQueryable.\n *\n * @dev ERC721A subclass with convenience query functions.\n */\nabstract contract ERC721AQueryableUpgradeable is\n ERC721A__Initializable,\n ERC721AUpgradeable,\n IERC721AQueryableUpgradeable\n{\n function __ERC721AQueryable_init() internal onlyInitializingERC721A {\n __ERC721AQueryable_init_unchained();\n }\n\n function __ERC721AQueryable_init_unchained() internal onlyInitializingERC721A {}\n\n /**\n * @dev Returns the `TokenOwnership` struct at `tokenId` without reverting.\n *\n * If the `tokenId` is out of bounds:\n *\n * - `addr = address(0)`\n * - `startTimestamp = 0`\n * - `burned = false`\n * - `extraData = 0`\n *\n * If the `tokenId` is burned:\n *\n * - `addr = <Address of owner before token was burned>`\n * - `startTimestamp = <Timestamp when token was burned>`\n * - `burned = true`\n * - `extraData = <Extra data when token was burned>`\n *\n * Otherwise:\n *\n * - `addr = <Address of owner>`\n * - `startTimestamp = <Timestamp of start of ownership>`\n * - `burned = false`\n * - `extraData = <Extra data at start of ownership>`\n */\n function explicitOwnershipOf(uint256 tokenId) public view virtual override returns (TokenOwnership memory) {\n TokenOwnership memory ownership;\n if (tokenId < _startTokenId() || tokenId >= _nextTokenId()) {\n return ownership;\n }\n ownership = _ownershipAt(tokenId);\n if (ownership.burned) {\n return ownership;\n }\n return _ownershipOf(tokenId);\n }\n\n /**\n * @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order.\n * See {ERC721AQueryable-explicitOwnershipOf}\n */\n function explicitOwnershipsOf(uint256[] calldata tokenIds)\n external\n view\n virtual\n override\n returns (TokenOwnership[] memory)\n {\n unchecked {\n uint256 tokenIdsLength = tokenIds.length;\n TokenOwnership[] memory ownerships = new TokenOwnership[](tokenIdsLength);\n for (uint256 i; i != tokenIdsLength; ++i) {\n ownerships[i] = explicitOwnershipOf(tokenIds[i]);\n }\n return ownerships;\n }\n }\n\n /**\n * @dev Returns an array of token IDs owned by `owner`,\n * in the range [`start`, `stop`)\n * (i.e. `start <= tokenId < stop`).\n *\n * This function allows for tokens to be queried if the collection\n * grows too big for a single call of {ERC721AQueryable-tokensOfOwner}.\n *\n * Requirements:\n *\n * - `start < stop`\n */\n function tokensOfOwnerIn(\n address owner,\n uint256 start,\n uint256 stop\n ) external view virtual override returns (uint256[] memory) {\n unchecked {\n if (start >= stop) revert InvalidQueryRange();\n uint256 tokenIdsIdx;\n uint256 stopLimit = _nextTokenId();\n // Set `start = max(start, _startTokenId())`.\n if (start < _startTokenId()) {\n start = _startTokenId();\n }\n // Set `stop = min(stop, stopLimit)`.\n if (stop > stopLimit) {\n stop = stopLimit;\n }\n uint256 tokenIdsMaxLength = balanceOf(owner);\n // Set `tokenIdsMaxLength = min(balanceOf(owner), stop - start)`,\n // to cater for cases where `balanceOf(owner)` is too big.\n if (start < stop) {\n uint256 rangeLength = stop - start;\n if (rangeLength < tokenIdsMaxLength) {\n tokenIdsMaxLength = rangeLength;\n }\n } else {\n tokenIdsMaxLength = 0;\n }\n uint256[] memory tokenIds = new uint256[](tokenIdsMaxLength);\n if (tokenIdsMaxLength == 0) {\n return tokenIds;\n }\n // We need to call `explicitOwnershipOf(start)`,\n // because the slot at `start` may not be initialized.\n TokenOwnership memory ownership = explicitOwnershipOf(start);\n address currOwnershipAddr;\n // If the starting slot exists (i.e. not burned), initialize `currOwnershipAddr`.\n // `ownership.address` will not be zero, as `start` is clamped to the valid token ID range.\n if (!ownership.burned) {\n currOwnershipAddr = ownership.addr;\n }\n for (uint256 i = start; i != stop && tokenIdsIdx != tokenIdsMaxLength; ++i) {\n ownership = _ownershipAt(i);\n if (ownership.burned) {\n continue;\n }\n if (ownership.addr != address(0)) {\n currOwnershipAddr = ownership.addr;\n }\n if (currOwnershipAddr == owner) {\n tokenIds[tokenIdsIdx++] = i;\n }\n }\n // Downsize the array to fit.\n assembly {\n mstore(tokenIds, tokenIdsIdx)\n }\n return tokenIds;\n }\n }\n\n /**\n * @dev Returns an array of token IDs owned by `owner`.\n *\n * This function scans the ownership mapping and is O(`totalSupply`) in complexity.\n * It is meant to be called off-chain.\n *\n * See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into\n * multiple smaller scans if the collection is large enough to cause\n * an out-of-gas error (10K collections should be fine).\n */\n function tokensOfOwner(address owner) external view virtual override returns (uint256[] memory) {\n unchecked {\n uint256 tokenIdsIdx;\n address currOwnershipAddr;\n uint256 tokenIdsLength = balanceOf(owner);\n uint256[] memory tokenIds = new uint256[](tokenIdsLength);\n TokenOwnership memory ownership;\n for (uint256 i = _startTokenId(); tokenIdsIdx != tokenIdsLength; ++i) {\n ownership = _ownershipAt(i);\n if (ownership.burned) {\n continue;\n }\n if (ownership.addr != address(0)) {\n currOwnershipAddr = ownership.addr;\n }\n if (currOwnershipAddr == owner) {\n tokenIds[tokenIdsIdx++] = i;\n }\n }\n return tokenIds;\n }\n }\n}\n" }, "erc721a-upgradeable/contracts/extensions/IERC721AQueryableUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.3\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport '../IERC721AUpgradeable.sol';\n\n/**\n * @dev Interface of ERC721AQueryable.\n */\ninterface IERC721AQueryableUpgradeable is IERC721AUpgradeable {\n /**\n * Invalid query range (`start` >= `stop`).\n */\n error InvalidQueryRange();\n\n /**\n * @dev Returns the `TokenOwnership` struct at `tokenId` without reverting.\n *\n * If the `tokenId` is out of bounds:\n *\n * - `addr = address(0)`\n * - `startTimestamp = 0`\n * - `burned = false`\n * - `extraData = 0`\n *\n * If the `tokenId` is burned:\n *\n * - `addr = <Address of owner before token was burned>`\n * - `startTimestamp = <Timestamp when token was burned>`\n * - `burned = true`\n * - `extraData = <Extra data when token was burned>`\n *\n * Otherwise:\n *\n * - `addr = <Address of owner>`\n * - `startTimestamp = <Timestamp of start of ownership>`\n * - `burned = false`\n * - `extraData = <Extra data at start of ownership>`\n */\n function explicitOwnershipOf(uint256 tokenId) external view returns (TokenOwnership memory);\n\n /**\n * @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order.\n * See {ERC721AQueryable-explicitOwnershipOf}\n */\n function explicitOwnershipsOf(uint256[] memory tokenIds) external view returns (TokenOwnership[] memory);\n\n /**\n * @dev Returns an array of token IDs owned by `owner`,\n * in the range [`start`, `stop`)\n * (i.e. `start <= tokenId < stop`).\n *\n * This function allows for tokens to be queried if the collection\n * grows too big for a single call of {ERC721AQueryable-tokensOfOwner}.\n *\n * Requirements:\n *\n * - `start < stop`\n */\n function tokensOfOwnerIn(\n address owner,\n uint256 start,\n uint256 stop\n ) external view returns (uint256[] memory);\n\n /**\n * @dev Returns an array of token IDs owned by `owner`.\n *\n * This function scans the ownership mapping and is O(`totalSupply`) in complexity.\n * It is meant to be called off-chain.\n *\n * See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into\n * multiple smaller scans if the collection is large enough to cause\n * an out-of-gas error (10K collections should be fine).\n */\n function tokensOfOwner(address owner) external view returns (uint256[] memory);\n}\n" }, "erc721a-upgradeable/contracts/IERC721AUpgradeable.sol": { "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.3\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\n/**\n * @dev Interface of ERC721A.\n */\ninterface IERC721AUpgradeable {\n /**\n * The caller must own the token or be an approved operator.\n */\n error ApprovalCallerNotOwnerNorApproved();\n\n /**\n * The token does not exist.\n */\n error ApprovalQueryForNonexistentToken();\n\n /**\n * Cannot query the balance for the zero address.\n */\n error BalanceQueryForZeroAddress();\n\n /**\n * Cannot mint to the zero address.\n */\n error MintToZeroAddress();\n\n /**\n * The quantity of tokens minted must be more than zero.\n */\n error MintZeroQuantity();\n\n /**\n * The token does not exist.\n */\n error OwnerQueryForNonexistentToken();\n\n /**\n * The caller must own the token or be an approved operator.\n */\n error TransferCallerNotOwnerNorApproved();\n\n /**\n * The token must be owned by `from`.\n */\n error TransferFromIncorrectOwner();\n\n /**\n * Cannot safely transfer to a contract that does not implement the\n * ERC721Receiver interface.\n */\n error TransferToNonERC721ReceiverImplementer();\n\n /**\n * Cannot transfer to the zero address.\n */\n error TransferToZeroAddress();\n\n /**\n * The token does not exist.\n */\n error URIQueryForNonexistentToken();\n\n /**\n * The `quantity` minted with ERC2309 exceeds the safety limit.\n */\n error MintERC2309QuantityExceedsLimit();\n\n /**\n * The `extraData` cannot be set on an unintialized ownership slot.\n */\n error OwnershipNotInitializedForExtraData();\n\n // =============================================================\n // STRUCTS\n // =============================================================\n\n struct TokenOwnership {\n // The address of the owner.\n address addr;\n // Stores the start time of ownership with minimal overhead for tokenomics.\n uint64 startTimestamp;\n // Whether the token has been burned.\n bool burned;\n // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.\n uint24 extraData;\n }\n\n // =============================================================\n // TOKEN COUNTERS\n // =============================================================\n\n /**\n * @dev Returns the total number of tokens in existence.\n * Burned tokens will reduce the count.\n * To get the total number of tokens minted, please see {_totalMinted}.\n */\n function totalSupply() external view returns (uint256);\n\n // =============================================================\n // IERC165\n // =============================================================\n\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n\n // =============================================================\n // IERC721\n // =============================================================\n\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables\n * (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in `owner`'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`,\n * checking first that contract recipients are aware of the ERC721 protocol\n * to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move\n * this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external payable;\n\n /**\n * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external payable;\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom}\n * whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external payable;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the\n * zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external payable;\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom}\n * for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n\n // =============================================================\n // IERC721Metadata\n // =============================================================\n\n /**\n * @dev Returns the token collection name.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId) external view returns (string memory);\n\n // =============================================================\n // IERC2309\n // =============================================================\n\n /**\n * @dev Emitted when tokens in `fromTokenId` to `toTokenId`\n * (inclusive) is transferred from `from` to `to`, as defined in the\n * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.\n *\n * See {_mintERC2309} for more details.\n */\n event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);\n}\n" }, "solady/src/utils/ECDSA.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.4;\n\n/// @notice Gas optimized ECDSA wrapper.\n/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/ECDSA.sol)\n/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/ECDSA.sol)\n/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/cryptography/ECDSA.sol)\nlibrary ECDSA {\n function recover(bytes32 hash, bytes calldata signature) internal view returns (address result) {\n assembly {\n if eq(signature.length, 65) {\n // Copy the free memory pointer so that we can restore it later.\n let m := mload(0x40)\n // Directly copy `r` and `s` from the calldata.\n calldatacopy(0x40, signature.offset, 0x40)\n\n // If `s` in lower half order, such that the signature is not malleable.\n // prettier-ignore\n if iszero(gt(mload(0x60), 0x7fffffffffffffffffffffffffffffff5d576e7357a4501ddfe92f46681b20a0)) {\n mstore(0x00, hash)\n // Compute `v` and store it in the scratch space.\n mstore(0x20, byte(0, calldataload(add(signature.offset, 0x40))))\n pop(\n staticcall(\n gas(), // Amount of gas left for the transaction.\n 0x01, // Address of `ecrecover`.\n 0x00, // Start of input.\n 0x80, // Size of input.\n 0x40, // Start of output.\n 0x20 // Size of output.\n )\n )\n // Restore the zero slot.\n mstore(0x60, 0)\n // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise.\n result := mload(sub(0x60, returndatasize()))\n }\n // Restore the free memory pointer.\n mstore(0x40, m)\n }\n }\n }\n\n function recover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal view returns (address result) {\n assembly {\n // Copy the free memory pointer so that we can restore it later.\n let m := mload(0x40)\n // prettier-ignore\n let s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)\n\n // If `s` in lower half order, such that the signature is not malleable.\n // prettier-ignore\n if iszero(gt(s, 0x7fffffffffffffffffffffffffffffff5d576e7357a4501ddfe92f46681b20a0)) {\n mstore(0x00, hash)\n mstore(0x20, add(shr(255, vs), 27))\n mstore(0x40, r)\n mstore(0x60, s)\n pop(\n staticcall(\n gas(), // Amount of gas left for the transaction.\n 0x01, // Address of `ecrecover`.\n 0x00, // Start of input.\n 0x80, // Size of input.\n 0x40, // Start of output.\n 0x20 // Size of output.\n )\n )\n // Restore the zero slot.\n mstore(0x60, 0)\n // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise.\n result := mload(sub(0x60, returndatasize()))\n }\n // Restore the free memory pointer.\n mstore(0x40, m)\n }\n }\n\n function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 result) {\n assembly {\n // Store into scratch space for keccak256.\n mstore(0x20, hash)\n mstore(0x00, \"\\x00\\x00\\x00\\x00\\x19Ethereum Signed Message:\\n32\")\n // 0x40 - 0x04 = 0x3c\n result := keccak256(0x04, 0x3c)\n }\n }\n\n function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32 result) {\n assembly {\n // We need at most 128 bytes for Ethereum signed message header.\n // The max length of the ASCII reprenstation of a uint256 is 78 bytes.\n // The length of \"\\x19Ethereum Signed Message:\\n\" is 26 bytes (i.e. 0x1a).\n // The next multiple of 32 above 78 + 26 is 128 (i.e. 0x80).\n\n // Instead of allocating, we temporarily copy the 128 bytes before the\n // start of `s` data to some variables.\n let m3 := mload(sub(s, 0x60))\n let m2 := mload(sub(s, 0x40))\n let m1 := mload(sub(s, 0x20))\n // The length of `s` is in bytes.\n let sLength := mload(s)\n\n let ptr := add(s, 0x20)\n\n // `end` marks the end of the memory which we will compute the keccak256 of.\n let end := add(ptr, sLength)\n\n // Convert the length of the bytes to ASCII decimal representation\n // and store it into the memory.\n // prettier-ignore\n for { let temp := sLength } 1 {} {\n ptr := sub(ptr, 1)\n mstore8(ptr, add(48, mod(temp, 10)))\n temp := div(temp, 10)\n // prettier-ignore\n if iszero(temp) { break }\n }\n\n // Copy the header over to the memory.\n mstore(sub(ptr, 0x20), \"\\x00\\x00\\x00\\x00\\x00\\x00\\x19Ethereum Signed Message:\\n\")\n // Compute the keccak256 of the memory.\n result := keccak256(sub(ptr, 0x1a), sub(end, sub(ptr, 0x1a)))\n\n // Restore the previous memory.\n mstore(s, sLength)\n mstore(sub(s, 0x20), m1)\n mstore(sub(s, 0x40), m2)\n mstore(sub(s, 0x60), m3)\n }\n }\n}\n" }, "solady/src/utils/LibString.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.4;\n\n/// @notice Library for converting numbers into strings and other string operations.\n/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/LibString.sol)\n/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/LibString.sol)\nlibrary LibString {\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* CUSTOM ERRORS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n error HexLengthInsufficient();\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* DECIMAL OPERATIONS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n function toString(uint256 value) internal pure returns (string memory str) {\n assembly {\n // The maximum value of a uint256 contains 78 digits (1 byte per digit), but\n // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.\n // We will need 1 word for the trailing zeros padding, 1 word for the length,\n // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.\n let m := add(mload(0x40), 0xa0)\n // Update the free memory pointer to allocate.\n mstore(0x40, m)\n // Assign the `str` to the end.\n str := sub(m, 0x20)\n // Zeroize the slot after the string.\n mstore(str, 0)\n\n // Cache the end of the memory to calculate the length later.\n let end := str\n\n // We write the string from rightmost digit to leftmost digit.\n // The following is essentially a do-while loop that also handles the zero case.\n // prettier-ignore\n for { let temp := value } 1 {} {\n str := sub(str, 1)\n // Write the character to the pointer.\n // The ASCII index of the '0' character is 48.\n mstore8(str, add(48, mod(temp, 10)))\n // Keep dividing `temp` until zero.\n temp := div(temp, 10)\n // prettier-ignore\n if iszero(temp) { break }\n }\n\n let length := sub(end, str)\n // Move the pointer 32 bytes leftwards to make room for the length.\n str := sub(str, 0x20)\n // Store the length.\n mstore(str, length)\n }\n }\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* HEXADECIMAL OPERATIONS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory str) {\n assembly {\n let start := mload(0x40)\n // We need 0x20 bytes for the trailing zeros padding, `length * 2` bytes\n // for the digits, 0x02 bytes for the prefix, and 0x20 bytes for the length.\n // We add 0x20 to the total and round down to a multiple of 0x20.\n // (0x20 + 0x20 + 0x02 + 0x20) = 0x62.\n let m := add(start, and(add(shl(1, length), 0x62), not(0x1f)))\n // Allocate the memory.\n mstore(0x40, m)\n // Assign the `str` to the end.\n str := sub(m, 0x20)\n // Zeroize the slot after the string.\n mstore(str, 0)\n\n // Cache the end to calculate the length later.\n let end := str\n // Store \"0123456789abcdef\" in scratch space.\n mstore(0x0f, 0x30313233343536373839616263646566)\n\n let temp := value\n // We write the string from rightmost digit to leftmost digit.\n // The following is essentially a do-while loop that also handles the zero case.\n // prettier-ignore\n for {} 1 {} {\n str := sub(str, 2)\n mstore8(add(str, 1), mload(and(temp, 15)))\n mstore8(str, mload(and(shr(4, temp), 15)))\n temp := shr(8, temp)\n length := sub(length, 1)\n // prettier-ignore\n if iszero(length) { break }\n }\n\n if temp {\n // Store the function selector of `HexLengthInsufficient()`.\n mstore(0x00, 0x2194895a)\n // Revert with (offset, size).\n revert(0x1c, 0x04)\n }\n\n // Compute the string's length.\n let strLength := add(sub(end, str), 2)\n // Move the pointer and write the \"0x\" prefix.\n str := sub(str, 0x20)\n mstore(str, 0x3078)\n // Move the pointer and write the length.\n str := sub(str, 2)\n mstore(str, strLength)\n }\n }\n\n function toHexString(uint256 value) internal pure returns (string memory str) {\n assembly {\n let start := mload(0x40)\n // We need 0x20 bytes for the trailing zeros padding, 0x20 bytes for the length,\n // 0x02 bytes for the prefix, and 0x40 bytes for the digits.\n // The next multiple of 0x20 above (0x20 + 0x20 + 0x02 + 0x40) is 0xa0.\n let m := add(start, 0xa0)\n // Allocate the memory.\n mstore(0x40, m)\n // Assign the `str` to the end.\n str := sub(m, 0x20)\n // Zeroize the slot after the string.\n mstore(str, 0)\n\n // Cache the end to calculate the length later.\n let end := str\n // Store \"0123456789abcdef\" in scratch space.\n mstore(0x0f, 0x30313233343536373839616263646566)\n\n // We write the string from rightmost digit to leftmost digit.\n // The following is essentially a do-while loop that also handles the zero case.\n // prettier-ignore\n for { let temp := value } 1 {} {\n str := sub(str, 2)\n mstore8(add(str, 1), mload(and(temp, 15)))\n mstore8(str, mload(and(shr(4, temp), 15)))\n temp := shr(8, temp)\n // prettier-ignore\n if iszero(temp) { break }\n }\n\n // Compute the string's length.\n let strLength := add(sub(end, str), 2)\n // Move the pointer and write the \"0x\" prefix.\n str := sub(str, 0x20)\n mstore(str, 0x3078)\n // Move the pointer and write the length.\n str := sub(str, 2)\n mstore(str, strLength)\n }\n }\n\n function toHexString(address value) internal pure returns (string memory str) {\n assembly {\n let start := mload(0x40)\n // We need 0x20 bytes for the length, 0x02 bytes for the prefix,\n // and 0x28 bytes for the digits.\n // The next multiple of 0x20 above (0x20 + 0x02 + 0x28) is 0x60.\n str := add(start, 0x60)\n\n // Allocate the memory.\n mstore(0x40, str)\n // Store \"0123456789abcdef\" in scratch space.\n mstore(0x0f, 0x30313233343536373839616263646566)\n\n let length := 20\n // We write the string from rightmost digit to leftmost digit.\n // The following is essentially a do-while loop that also handles the zero case.\n // prettier-ignore\n for { let temp := value } 1 {} {\n str := sub(str, 2)\n mstore8(add(str, 1), mload(and(temp, 15)))\n mstore8(str, mload(and(shr(4, temp), 15)))\n temp := shr(8, temp)\n length := sub(length, 1)\n // prettier-ignore\n if iszero(length) { break }\n }\n\n // Move the pointer and write the \"0x\" prefix.\n str := sub(str, 32)\n mstore(str, 0x3078)\n // Move the pointer and write the length.\n str := sub(str, 2)\n mstore(str, 42)\n }\n }\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* OTHER STRING OPERATIONS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n function replace(\n string memory subject,\n string memory search,\n string memory replacement\n ) internal pure returns (string memory result) {\n assembly {\n let subjectLength := mload(subject)\n let searchLength := mload(search)\n let replacementLength := mload(replacement)\n\n subject := add(subject, 0x20)\n search := add(search, 0x20)\n replacement := add(replacement, 0x20)\n result := add(mload(0x40), 0x20)\n\n let subjectEnd := add(subject, subjectLength)\n if iszero(gt(searchLength, subjectLength)) {\n let subjectSearchEnd := add(sub(subjectEnd, searchLength), 1)\n let h := 0\n if iszero(lt(searchLength, 32)) {\n h := keccak256(search, searchLength)\n }\n let m := shl(3, sub(32, and(searchLength, 31)))\n let s := mload(search)\n // prettier-ignore\n for {} 1 {} {\n let t := mload(subject)\n // Whether the first `searchLength % 32` bytes of \n // `subject` and `search` matches.\n if iszero(shr(m, xor(t, s))) {\n if h {\n if iszero(eq(keccak256(subject, searchLength), h)) {\n mstore(result, t)\n result := add(result, 1)\n subject := add(subject, 1)\n // prettier-ignore\n if iszero(lt(subject, subjectSearchEnd)) { break }\n continue\n }\n }\n // Copy the `replacement` one word at a time.\n // prettier-ignore\n for { let o := 0 } 1 {} {\n mstore(add(result, o), mload(add(replacement, o)))\n o := add(o, 0x20)\n // prettier-ignore\n if iszero(lt(o, replacementLength)) { break }\n }\n result := add(result, replacementLength)\n subject := add(subject, searchLength) \n if iszero(searchLength) {\n mstore(result, t)\n result := add(result, 1)\n subject := add(subject, 1)\n }\n // prettier-ignore\n if iszero(lt(subject, subjectSearchEnd)) { break }\n continue\n }\n mstore(result, t)\n result := add(result, 1)\n subject := add(subject, 1)\n // prettier-ignore\n if iszero(lt(subject, subjectSearchEnd)) { break }\n }\n }\n\n let resultRemainder := result\n result := add(mload(0x40), 0x20)\n let k := add(sub(resultRemainder, result), sub(subjectEnd, subject))\n // Copy the rest of the string one word at a time.\n // prettier-ignore\n for {} lt(subject, subjectEnd) {} {\n mstore(resultRemainder, mload(subject))\n resultRemainder := add(resultRemainder, 0x20)\n subject := add(subject, 0x20)\n }\n // Allocate memory for the length and the bytes,\n // rounded up to a multiple of 32.\n mstore(0x40, add(result, and(add(k, 0x40), not(0x1f))))\n result := sub(result, 0x20)\n mstore(result, k)\n }\n }\n}\n" }, "solady/src/utils/MerkleProofLib.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.4;\n\n/// @notice Gas optimized verification of proof of inclusion for a leaf in a Merkle tree.\n/// @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/MerkleProofLib.sol)\n/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/MerkleProofLib.sol)\n/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/cryptography/MerkleProof.sol)\nlibrary MerkleProofLib {\n function verify(\n bytes32[] calldata proof,\n bytes32 root,\n bytes32 leaf\n ) internal pure returns (bool isValid) {\n assembly {\n if proof.length {\n // Left shift by 5 is equivalent to multiplying by 0x20.\n let end := add(proof.offset, shl(5, proof.length))\n // Initialize `offset` to the offset of `proof` in the calldata.\n let offset := proof.offset\n // Iterate over proof elements to compute root hash.\n // prettier-ignore\n for {} 1 {} {\n // Slot of `leaf` in scratch space.\n // If the condition is true: 0x20, otherwise: 0x00.\n let scratch := shl(5, gt(leaf, calldataload(offset)))\n // Store elements to hash contiguously in scratch space.\n // Scratch space is 64 bytes (0x00 - 0x3f) and both elements are 32 bytes.\n mstore(scratch, leaf)\n mstore(xor(scratch, 0x20), calldataload(offset))\n // Reuse `leaf` to store the hash to reduce stack operations.\n leaf := keccak256(0x00, 0x40)\n offset := add(offset, 0x20)\n // prettier-ignore\n if iszero(lt(offset, end)) { break }\n }\n }\n isValid := eq(leaf, root)\n }\n }\n\n function verifyMultiProof(\n bytes32[] calldata proof,\n bytes32 root,\n bytes32[] calldata leafs,\n bool[] calldata flags\n ) internal pure returns (bool isValid) {\n // Rebuilds the root by consuming and producing values on a queue.\n // The queue starts with the `leafs` array, and goes into a `hashes` array.\n // After the process, the last element on the queue is verified\n // to be equal to the `root`.\n //\n // The `flags` array denotes whether the sibling\n // should be popped from the queue (`flag == true`), or\n // should be popped from the `proof` (`flag == false`).\n assembly {\n // If the number of flags is correct.\n // prettier-ignore\n for {} eq(add(leafs.length, proof.length), add(flags.length, 1)) {} {\n // Left shift by 5 is equivalent to multiplying by 0x20.\n // Compute the end calldata offset of `leafs`.\n let leafsEnd := add(leafs.offset, shl(5, leafs.length))\n // These are the calldata offsets.\n let leafsOffset := leafs.offset\n let flagsOffset := flags.offset\n let proofOffset := proof.offset\n\n // We can use the free memory space for the queue.\n // We don't need to allocate, since the queue is temporary.\n let hashesFront := mload(0x40)\n let hashesBack := hashesFront\n // This is the end of the memory for the queue.\n let end := add(hashesBack, shl(5, flags.length))\n\n // For the case where `proof.length + leafs.length == 1`.\n if iszero(flags.length) {\n // If `proof.length` is zero, `leafs.length` is 1.\n if iszero(proof.length) {\n isValid := eq(calldataload(leafsOffset), root)\n break\n }\n // If `leafs.length` is zero, `proof.length` is 1.\n if iszero(leafs.length) {\n isValid := eq(calldataload(proofOffset), root)\n break\n }\n }\n\n // prettier-ignore\n for {} 1 {} {\n let a := 0\n // Pops a value from the queue into `a`.\n switch lt(leafsOffset, leafsEnd)\n case 0 {\n // Pop from `hashes` if there are no more leafs.\n a := mload(hashesFront)\n hashesFront := add(hashesFront, 0x20)\n }\n default {\n // Otherwise, pop from `leafs`.\n a := calldataload(leafsOffset)\n leafsOffset := add(leafsOffset, 0x20)\n }\n\n let b := 0\n // If the flag is false, load the next proof,\n // else, pops from the queue.\n switch calldataload(flagsOffset)\n case 0 {\n // Loads the next proof.\n b := calldataload(proofOffset)\n proofOffset := add(proofOffset, 0x20)\n }\n default {\n // Pops a value from the queue into `a`.\n switch lt(leafsOffset, leafsEnd)\n case 0 {\n // Pop from `hashes` if there are no more leafs.\n b := mload(hashesFront)\n hashesFront := add(hashesFront, 0x20)\n }\n default {\n // Otherwise, pop from `leafs`.\n b := calldataload(leafsOffset)\n leafsOffset := add(leafsOffset, 0x20)\n }\n }\n // Advance to the next flag offset.\n flagsOffset := add(flagsOffset, 0x20)\n\n // Slot of `a` in scratch space.\n // If the condition is true: 0x20, otherwise: 0x00.\n let scratch := shl(5, gt(a, b))\n // Hash the scratch space and push the result onto the queue.\n mstore(scratch, a)\n mstore(xor(scratch, 0x20), b)\n mstore(hashesBack, keccak256(0x00, 0x40))\n hashesBack := add(hashesBack, 0x20)\n // prettier-ignore\n if iszero(lt(hashesBack, end)) { break }\n }\n // Checks if the last value in the queue is same as the root.\n isValid := eq(mload(sub(hashesBack, 0x20)), root)\n break\n }\n }\n }\n}\n" } }, "settings": { "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": { "contracts/ArchetypeLogic.sol": { "ArchetypeLogic": "0x17a23a733d7b8206a4f950cfddbdb56563ce3b7b" } } } }}
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// SPDX-License-Identifier: LGPL-3.0-only pragma solidity >=0.7.0 <0.9.0; /// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain /// @author Richard Meissner - <richard@gnosis.io> interface IProxy { function masterCopy() external view returns (address); } /// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract. /// @author Stefan George - <stefan@gnosis.io> /// @author Richard Meissner - <richard@gnosis.io> contract GnosisSafeProxy { // singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated. // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt` address internal singleton; /// @dev Constructor function sets address of singleton contract. /// @param _singleton Singleton address. constructor(address _singleton) { require(_singleton != address(0), "Invalid singleton address provided"); singleton = _singleton; } /// @dev Fallback function forwards all transactions and returns all received return data. fallback() external payable { // solhint-disable-next-line no-inline-assembly assembly { let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff) // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) { mstore(0, _singleton) return(0, 0x20) } calldatacopy(0, 0, calldatasize()) let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0) returndatacopy(0, 0, returndatasize()) if eq(success, 0) { revert(0, returndatasize()) } return(0, returndatasize()) } } } /// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @author Stefan George - <stefan@gnosis.pm> contract GnosisSafeProxyFactory { event ProxyCreation(GnosisSafeProxy proxy, address singleton); /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param singleton Address of singleton contract. /// @param data Payload for message call sent to new proxy contract. function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) { proxy = new GnosisSafeProxy(singleton); if (data.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, singleton); } /// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed. function proxyRuntimeCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).runtimeCode; } /// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address. function proxyCreationCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).creationCode; } /// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer. /// This method is only meant as an utility to be called from other methods /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function deployProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) internal returns (GnosisSafeProxy proxy) { // If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce)); bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton))); // solhint-disable-next-line no-inline-assembly assembly { proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt) } require(address(proxy) != address(0), "Create2 call failed"); } /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function createProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) public returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); if (initializer.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, _singleton); } /// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. /// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized. function createProxyWithCallback( address _singleton, bytes memory initializer, uint256 saltNonce, IProxyCreationCallback callback ) public returns (GnosisSafeProxy proxy) { uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback))); proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback); if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce); } /// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce` /// This method is only meant for address calculation purpose when you use an initializer that would revert, /// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function calculateCreateProxyWithNonceAddress( address _singleton, bytes calldata initializer, uint256 saltNonce ) external returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); revert(string(abi.encodePacked(proxy))); } } interface IProxyCreationCallback { function proxyCreated( GnosisSafeProxy proxy, address _singleton, bytes calldata initializer, uint256 saltNonce ) external; }
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pragma solidity 0.7.5; /* The MIT License (MIT) Copyright (c) 2018 Murray Software, LLC. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ //solhint-disable max-line-length //solhint-disable no-inline-assembly contract CloneFactory { function createClone(address target, bytes32 salt) internal returns (address payable result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the clone contract data let clone := mload(0x40) // The bytecode block below is responsible for contract initialization // during deployment, it is worth noting the proxied contract constructor will not be called during // the cloning procedure and that is why an initialization function needs to be called after the // clone is created mstore( clone, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000 ) // This stores the address location of the implementation contract // so that the proxy knows where to delegate call logic to mstore(add(clone, 0x14), targetBytes) // The bytecode block is the actual code that is deployed for each clone created. // It forwards all calls to the already deployed implementation via a delegatecall mstore( add(clone, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // deploy the contract using the CREATE2 opcode // this deploys the minimal proxy defined above, which will proxy all // calls to use the logic defined in the implementation contract `target` result := create2(0, clone, 0x37, salt) } } function isClone(address target, address query) internal view returns (bool result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the comparison clone let clone := mload(0x40) // The next three lines store the expected bytecode for a miniml proxy // that targets `target` as its implementation contract mstore( clone, 0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000 ) mstore(add(clone, 0xa), targetBytes) mstore( add(clone, 0x1e), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // the next two lines store the bytecode of the contract that we are checking in memory let other := add(clone, 0x40) extcodecopy(query, other, 0, 0x2d) // Check if the expected bytecode equals the actual bytecode and return the result result := and( eq(mload(clone), mload(other)), eq(mload(add(clone, 0xd)), mload(add(other, 0xd))) ) } } } /** * Contract that exposes the needed erc20 token functions */ abstract contract ERC20Interface { // Send _value amount of tokens to address _to function transfer(address _to, uint256 _value) public virtual returns (bool success); // Get the account balance of another account with address _owner function balanceOf(address _owner) public virtual view returns (uint256 balance); } // helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false library TransferHelper { function safeApprove( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('approve(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeApprove: approve failed' ); } function safeTransfer( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transfer(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeTransfer: transfer failed' ); } function safeTransferFrom( address token, address from, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transferFrom(address,address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::transferFrom: transferFrom failed' ); } function safeTransferETH(address to, uint256 value) internal { (bool success, ) = to.call{value: value}(new bytes(0)); require(success, 'TransferHelper::safeTransferETH: ETH transfer failed'); } } /** * Contract that will forward any incoming Ether to the creator of the contract * */ contract Forwarder { // Address to which any funds sent to this contract will be forwarded address public parentAddress; event ForwarderDeposited(address from, uint256 value, bytes data); /** * Initialize the contract, and sets the destination address to that of the creator */ function init(address _parentAddress) external onlyUninitialized { parentAddress = _parentAddress; uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); // NOTE: since we are forwarding on initialization, // we don't have the context of the original sender. // We still emit an event about the forwarding but set // the sender to the forwarder itself emit ForwarderDeposited(address(this), value, msg.data); } /** * Modifier that will execute internal code block only if the sender is the parent address */ modifier onlyParent { require(msg.sender == parentAddress, 'Only Parent'); _; } /** * Modifier that will execute internal code block only if the contract has not been initialized yet */ modifier onlyUninitialized { require(parentAddress == address(0x0), 'Already initialized'); _; } /** * Default function; Gets called when data is sent but does not match any other function */ fallback() external payable { flush(); } /** * Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address */ receive() external payable { flush(); } /** * Execute a token transfer of the full balance from the forwarder token to the parent address * @param tokenContractAddress the address of the erc20 token contract */ function flushTokens(address tokenContractAddress) external onlyParent { ERC20Interface instance = ERC20Interface(tokenContractAddress); address forwarderAddress = address(this); uint256 forwarderBalance = instance.balanceOf(forwarderAddress); if (forwarderBalance == 0) { return; } TransferHelper.safeTransfer( tokenContractAddress, parentAddress, forwarderBalance ); } /** * Flush the entire balance of the contract to the parent address. */ function flush() public { uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); emit ForwarderDeposited(msg.sender, value, msg.data); } } contract ForwarderFactory is CloneFactory { address public implementationAddress; event ForwarderCreated(address newForwarderAddress, address parentAddress); constructor(address _implementationAddress) { implementationAddress = _implementationAddress; } function createForwarder(address parent, bytes32 salt) external { // include the signers in the salt so any contract deployed to a given address must have the same signers bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt)); address payable clone = createClone(implementationAddress, finalSalt); Forwarder(clone).init(parent); emit ForwarderCreated(clone, parent); } }
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// SPDX-License-Identifier: LGPL-3.0-only pragma solidity >=0.7.0 <0.9.0; /// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain /// @author Richard Meissner - <richard@gnosis.io> interface IProxy { function masterCopy() external view returns (address); } /// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract. /// @author Stefan George - <stefan@gnosis.io> /// @author Richard Meissner - <richard@gnosis.io> contract GnosisSafeProxy { // singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated. // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt` address internal singleton; /// @dev Constructor function sets address of singleton contract. /// @param _singleton Singleton address. constructor(address _singleton) { require(_singleton != address(0), "Invalid singleton address provided"); singleton = _singleton; } /// @dev Fallback function forwards all transactions and returns all received return data. fallback() external payable { // solhint-disable-next-line no-inline-assembly assembly { let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff) // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) { mstore(0, _singleton) return(0, 0x20) } calldatacopy(0, 0, calldatasize()) let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0) returndatacopy(0, 0, returndatasize()) if eq(success, 0) { revert(0, returndatasize()) } return(0, returndatasize()) } } } /// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @author Stefan George - <stefan@gnosis.pm> contract GnosisSafeProxyFactory { event ProxyCreation(GnosisSafeProxy proxy, address singleton); /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param singleton Address of singleton contract. /// @param data Payload for message call sent to new proxy contract. function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) { proxy = new GnosisSafeProxy(singleton); if (data.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, singleton); } /// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed. function proxyRuntimeCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).runtimeCode; } /// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address. function proxyCreationCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).creationCode; } /// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer. /// This method is only meant as an utility to be called from other methods /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function deployProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) internal returns (GnosisSafeProxy proxy) { // If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce)); bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton))); // solhint-disable-next-line no-inline-assembly assembly { proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt) } require(address(proxy) != address(0), "Create2 call failed"); } /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function createProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) public returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); if (initializer.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, _singleton); } /// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. /// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized. function createProxyWithCallback( address _singleton, bytes memory initializer, uint256 saltNonce, IProxyCreationCallback callback ) public returns (GnosisSafeProxy proxy) { uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback))); proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback); if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce); } /// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce` /// This method is only meant for address calculation purpose when you use an initializer that would revert, /// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function calculateCreateProxyWithNonceAddress( address _singleton, bytes calldata initializer, uint256 saltNonce ) external returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); revert(string(abi.encodePacked(proxy))); } } interface IProxyCreationCallback { function proxyCreated( GnosisSafeProxy proxy, address _singleton, bytes calldata initializer, uint256 saltNonce ) external; }
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// File: contracts/interfaces/IUniswapV2Pair.sol pragma solidity >=0.5.0; interface IUniswapV2Pair { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external pure returns (string memory); function symbol() external pure returns (string memory); function decimals() external pure returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); function DOMAIN_SEPARATOR() external view returns (bytes32); function PERMIT_TYPEHASH() external pure returns (bytes32); function nonces(address owner) external view returns (uint); function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external; event Mint(address indexed sender, uint amount0, uint amount1); event Burn(address indexed sender, uint amount0, uint amount1, address indexed to); event Swap( address indexed sender, uint amount0In, uint amount1In, uint amount0Out, uint amount1Out, address indexed to ); event Sync(uint112 reserve0, uint112 reserve1); function MINIMUM_LIQUIDITY() external pure returns (uint); function factory() external view returns (address); function token0() external view returns (address); function token1() external view returns (address); function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast); function price0CumulativeLast() external view returns (uint); function price1CumulativeLast() external view returns (uint); function kLast() external view returns (uint); function mint(address to) external returns (uint liquidity); function burn(address to) external returns (uint amount0, uint amount1); function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external; function skim(address to) external; function sync() external; function initialize(address, address) external; } // File: contracts/interfaces/IUniswapV2ERC20.sol pragma solidity >=0.5.0; interface IUniswapV2ERC20 { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external pure returns (string memory); function symbol() external pure returns (string memory); function decimals() external pure returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); function DOMAIN_SEPARATOR() external view returns (bytes32); function PERMIT_TYPEHASH() external pure returns (bytes32); function nonces(address owner) external view returns (uint); function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external; } // File: contracts/libraries/SafeMath.sol pragma solidity =0.5.16; // a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math) library SafeMath { function add(uint x, uint y) internal pure returns (uint z) { require((z = x + y) >= x, 'ds-math-add-overflow'); } function sub(uint x, uint y) internal pure returns (uint z) { require((z = x - y) <= x, 'ds-math-sub-underflow'); } function mul(uint x, uint y) internal pure returns (uint z) { require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow'); } } // File: contracts/UniswapV2ERC20.sol pragma solidity =0.5.16; contract UniswapV2ERC20 is IUniswapV2ERC20 { using SafeMath for uint; string public constant name = 'Uniswap V2'; string public constant symbol = 'UNI-V2'; uint8 public constant decimals = 18; uint public totalSupply; mapping(address => uint) public balanceOf; mapping(address => mapping(address => uint)) public allowance; bytes32 public DOMAIN_SEPARATOR; // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9; mapping(address => uint) public nonces; event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); constructor() public { uint chainId; assembly { chainId := chainid } DOMAIN_SEPARATOR = keccak256( abi.encode( keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'), keccak256(bytes(name)), keccak256(bytes('1')), chainId, address(this) ) ); } function _mint(address to, uint value) internal { totalSupply = totalSupply.add(value); balanceOf[to] = balanceOf[to].add(value); emit Transfer(address(0), to, value); } function _burn(address from, uint value) internal { balanceOf[from] = balanceOf[from].sub(value); totalSupply = totalSupply.sub(value); emit Transfer(from, address(0), value); } function _approve(address owner, address spender, uint value) private { allowance[owner][spender] = value; emit Approval(owner, spender, value); } function _transfer(address from, address to, uint value) private { balanceOf[from] = balanceOf[from].sub(value); balanceOf[to] = balanceOf[to].add(value); emit Transfer(from, to, value); } function approve(address spender, uint value) external returns (bool) { _approve(msg.sender, spender, value); return true; } function transfer(address to, uint value) external returns (bool) { _transfer(msg.sender, to, value); return true; } function transferFrom(address from, address to, uint value) external returns (bool) { if (allowance[from][msg.sender] != uint(-1)) { allowance[from][msg.sender] = allowance[from][msg.sender].sub(value); } _transfer(from, to, value); return true; } function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external { require(deadline >= block.timestamp, 'UniswapV2: EXPIRED'); bytes32 digest = keccak256( abi.encodePacked( '\x19\x01', DOMAIN_SEPARATOR, keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline)) ) ); address recoveredAddress = ecrecover(digest, v, r, s); require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE'); _approve(owner, spender, value); } } // File: contracts/libraries/Math.sol pragma solidity =0.5.16; // a library for performing various math operations library Math { function min(uint x, uint y) internal pure returns (uint z) { z = x < y ? x : y; } // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method) function sqrt(uint y) internal pure returns (uint z) { if (y > 3) { z = y; uint x = y / 2 + 1; while (x < z) { z = x; x = (y / x + x) / 2; } } else if (y != 0) { z = 1; } } } // File: contracts/libraries/UQ112x112.sol pragma solidity =0.5.16; // a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format)) // range: [0, 2**112 - 1] // resolution: 1 / 2**112 library UQ112x112 { uint224 constant Q112 = 2**112; // encode a uint112 as a UQ112x112 function encode(uint112 y) internal pure returns (uint224 z) { z = uint224(y) * Q112; // never overflows } // divide a UQ112x112 by a uint112, returning a UQ112x112 function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) { z = x / uint224(y); } } // File: contracts/interfaces/IERC20.sol pragma solidity >=0.5.0; interface IERC20 { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external view returns (string memory); function symbol() external view returns (string memory); function decimals() external view returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); } // File: contracts/interfaces/IUniswapV2Factory.sol pragma solidity >=0.5.0; interface IUniswapV2Factory { event PairCreated(address indexed token0, address indexed token1, address pair, uint); function feeTo() external view returns (address); function feeToSetter() external view returns (address); function getPair(address tokenA, address tokenB) external view returns (address pair); function allPairs(uint) external view returns (address pair); function allPairsLength() external view returns (uint); function createPair(address tokenA, address tokenB) external returns (address pair); function setFeeTo(address) external; function setFeeToSetter(address) external; } // File: contracts/interfaces/IUniswapV2Callee.sol pragma solidity >=0.5.0; interface IUniswapV2Callee { function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external; } // File: contracts/UniswapV2Pair.sol pragma solidity =0.5.16; contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 { using SafeMath for uint; using UQ112x112 for uint224; uint public constant MINIMUM_LIQUIDITY = 10**3; bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)'))); address public factory; address public token0; address public token1; uint112 private reserve0; // uses single storage slot, accessible via getReserves uint112 private reserve1; // uses single storage slot, accessible via getReserves uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves uint public price0CumulativeLast; uint public price1CumulativeLast; uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event uint private unlocked = 1; modifier lock() { require(unlocked == 1, 'UniswapV2: LOCKED'); unlocked = 0; _; unlocked = 1; } function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) { _reserve0 = reserve0; _reserve1 = reserve1; _blockTimestampLast = blockTimestampLast; } function _safeTransfer(address token, address to, uint value) private { (bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value)); require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED'); } event Mint(address indexed sender, uint amount0, uint amount1); event Burn(address indexed sender, uint amount0, uint amount1, address indexed to); event Swap( address indexed sender, uint amount0In, uint amount1In, uint amount0Out, uint amount1Out, address indexed to ); event Sync(uint112 reserve0, uint112 reserve1); constructor() public { factory = msg.sender; } // called once by the factory at time of deployment function initialize(address _token0, address _token1) external { require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check token0 = _token0; token1 = _token1; } // update reserves and, on the first call per block, price accumulators function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private { require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW'); uint32 blockTimestamp = uint32(block.timestamp % 2**32); uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) { // * never overflows, and + overflow is desired price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed; price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed; } reserve0 = uint112(balance0); reserve1 = uint112(balance1); blockTimestampLast = blockTimestamp; emit Sync(reserve0, reserve1); } // if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k) function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) { address feeTo = IUniswapV2Factory(factory).feeTo(); feeOn = feeTo != address(0); uint _kLast = kLast; // gas savings if (feeOn) { if (_kLast != 0) { uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1)); uint rootKLast = Math.sqrt(_kLast); if (rootK > rootKLast) { uint numerator = totalSupply.mul(rootK.sub(rootKLast)); uint denominator = rootK.mul(5).add(rootKLast); uint liquidity = numerator / denominator; if (liquidity > 0) _mint(feeTo, liquidity); } } } else if (_kLast != 0) { kLast = 0; } } // this low-level function should be called from a contract which performs important safety checks function mint(address to) external lock returns (uint liquidity) { (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings uint balance0 = IERC20(token0).balanceOf(address(this)); uint balance1 = IERC20(token1).balanceOf(address(this)); uint amount0 = balance0.sub(_reserve0); uint amount1 = balance1.sub(_reserve1); bool feeOn = _mintFee(_reserve0, _reserve1); uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee if (_totalSupply == 0) { liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY); _mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens } else { liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1); } require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED'); _mint(to, liquidity); _update(balance0, balance1, _reserve0, _reserve1); if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date emit Mint(msg.sender, amount0, amount1); } // this low-level function should be called from a contract which performs important safety checks function burn(address to) external lock returns (uint amount0, uint amount1) { (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings address _token0 = token0; // gas savings address _token1 = token1; // gas savings uint balance0 = IERC20(_token0).balanceOf(address(this)); uint balance1 = IERC20(_token1).balanceOf(address(this)); uint liquidity = balanceOf[address(this)]; bool feeOn = _mintFee(_reserve0, _reserve1); uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED'); _burn(address(this), liquidity); _safeTransfer(_token0, to, amount0); _safeTransfer(_token1, to, amount1); balance0 = IERC20(_token0).balanceOf(address(this)); balance1 = IERC20(_token1).balanceOf(address(this)); _update(balance0, balance1, _reserve0, _reserve1); if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date emit Burn(msg.sender, amount0, amount1, to); } // this low-level function should be called from a contract which performs important safety checks function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock { require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT'); (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY'); uint balance0; uint balance1; { // scope for _token{0,1}, avoids stack too deep errors address _token0 = token0; address _token1 = token1; require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO'); if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data); balance0 = IERC20(_token0).balanceOf(address(this)); balance1 = IERC20(_token1).balanceOf(address(this)); } uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0; uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0; require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT'); { // scope for reserve{0,1}Adjusted, avoids stack too deep errors uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3)); uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3)); require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K'); } _update(balance0, balance1, _reserve0, _reserve1); emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to); } // force balances to match reserves function skim(address to) external lock { address _token0 = token0; // gas savings address _token1 = token1; // gas savings _safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0)); _safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1)); } // force reserves to match balances function sync() external lock { _update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1); } }
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pragma solidity 0.7.5; /* The MIT License (MIT) Copyright (c) 2018 Murray Software, LLC. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ //solhint-disable max-line-length //solhint-disable no-inline-assembly contract CloneFactory { function createClone(address target, bytes32 salt) internal returns (address payable result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the clone contract data let clone := mload(0x40) // The bytecode block below is responsible for contract initialization // during deployment, it is worth noting the proxied contract constructor will not be called during // the cloning procedure and that is why an initialization function needs to be called after the // clone is created mstore( clone, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000 ) // This stores the address location of the implementation contract // so that the proxy knows where to delegate call logic to mstore(add(clone, 0x14), targetBytes) // The bytecode block is the actual code that is deployed for each clone created. // It forwards all calls to the already deployed implementation via a delegatecall mstore( add(clone, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // deploy the contract using the CREATE2 opcode // this deploys the minimal proxy defined above, which will proxy all // calls to use the logic defined in the implementation contract `target` result := create2(0, clone, 0x37, salt) } } function isClone(address target, address query) internal view returns (bool result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the comparison clone let clone := mload(0x40) // The next three lines store the expected bytecode for a miniml proxy // that targets `target` as its implementation contract mstore( clone, 0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000 ) mstore(add(clone, 0xa), targetBytes) mstore( add(clone, 0x1e), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // the next two lines store the bytecode of the contract that we are checking in memory let other := add(clone, 0x40) extcodecopy(query, other, 0, 0x2d) // Check if the expected bytecode equals the actual bytecode and return the result result := and( eq(mload(clone), mload(other)), eq(mload(add(clone, 0xd)), mload(add(other, 0xd))) ) } } } /** * Contract that exposes the needed erc20 token functions */ abstract contract ERC20Interface { // Send _value amount of tokens to address _to function transfer(address _to, uint256 _value) public virtual returns (bool success); // Get the account balance of another account with address _owner function balanceOf(address _owner) public virtual view returns (uint256 balance); } // helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false library TransferHelper { function safeApprove( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('approve(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeApprove: approve failed' ); } function safeTransfer( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transfer(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeTransfer: transfer failed' ); } function safeTransferFrom( address token, address from, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transferFrom(address,address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::transferFrom: transferFrom failed' ); } function safeTransferETH(address to, uint256 value) internal { (bool success, ) = to.call{value: value}(new bytes(0)); require(success, 'TransferHelper::safeTransferETH: ETH transfer failed'); } } /** * Contract that will forward any incoming Ether to the creator of the contract * */ contract Forwarder { // Address to which any funds sent to this contract will be forwarded address public parentAddress; event ForwarderDeposited(address from, uint256 value, bytes data); /** * Initialize the contract, and sets the destination address to that of the creator */ function init(address _parentAddress) external onlyUninitialized { parentAddress = _parentAddress; uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); // NOTE: since we are forwarding on initialization, // we don't have the context of the original sender. // We still emit an event about the forwarding but set // the sender to the forwarder itself emit ForwarderDeposited(address(this), value, msg.data); } /** * Modifier that will execute internal code block only if the sender is the parent address */ modifier onlyParent { require(msg.sender == parentAddress, 'Only Parent'); _; } /** * Modifier that will execute internal code block only if the contract has not been initialized yet */ modifier onlyUninitialized { require(parentAddress == address(0x0), 'Already initialized'); _; } /** * Default function; Gets called when data is sent but does not match any other function */ fallback() external payable { flush(); } /** * Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address */ receive() external payable { flush(); } /** * Execute a token transfer of the full balance from the forwarder token to the parent address * @param tokenContractAddress the address of the erc20 token contract */ function flushTokens(address tokenContractAddress) external onlyParent { ERC20Interface instance = ERC20Interface(tokenContractAddress); address forwarderAddress = address(this); uint256 forwarderBalance = instance.balanceOf(forwarderAddress); if (forwarderBalance == 0) { return; } TransferHelper.safeTransfer( tokenContractAddress, parentAddress, forwarderBalance ); } /** * Flush the entire balance of the contract to the parent address. */ function flush() public { uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); emit ForwarderDeposited(msg.sender, value, msg.data); } } contract ForwarderFactory is CloneFactory { address public implementationAddress; event ForwarderCreated(address newForwarderAddress, address parentAddress); constructor(address _implementationAddress) { implementationAddress = _implementationAddress; } function createForwarder(address parent, bytes32 salt) external { // include the signers in the salt so any contract deployed to a given address must have the same signers bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt)); address payable clone = createClone(implementationAddress, finalSalt); Forwarder(clone).init(parent); emit ForwarderCreated(clone, parent); } }
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// File: contracts/interfaces/IUniswapV2Pair.sol pragma solidity >=0.5.0; interface IUniswapV2Pair { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external pure returns (string memory); function symbol() external pure returns (string memory); function decimals() external pure returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); function DOMAIN_SEPARATOR() external view returns (bytes32); function PERMIT_TYPEHASH() external pure returns (bytes32); function nonces(address owner) external view returns (uint); function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external; event Mint(address indexed sender, uint amount0, uint amount1); event Burn(address indexed sender, uint amount0, uint amount1, address indexed to); event Swap( address indexed sender, uint amount0In, uint amount1In, uint amount0Out, uint amount1Out, address indexed to ); event Sync(uint112 reserve0, uint112 reserve1); function MINIMUM_LIQUIDITY() external pure returns (uint); function factory() external view returns (address); function token0() external view returns (address); function token1() external view returns (address); function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast); function price0CumulativeLast() external view returns (uint); function price1CumulativeLast() external view returns (uint); function kLast() external view returns (uint); function mint(address to) external returns (uint liquidity); function burn(address to) external returns (uint amount0, uint amount1); function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external; function skim(address to) external; function sync() external; function initialize(address, address) external; } // File: contracts/interfaces/IUniswapV2ERC20.sol pragma solidity >=0.5.0; interface IUniswapV2ERC20 { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external pure returns (string memory); function symbol() external pure returns (string memory); function decimals() external pure returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); function DOMAIN_SEPARATOR() external view returns (bytes32); function PERMIT_TYPEHASH() external pure returns (bytes32); function nonces(address owner) external view returns (uint); function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external; } // File: contracts/libraries/SafeMath.sol pragma solidity =0.5.16; // a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math) library SafeMath { function add(uint x, uint y) internal pure returns (uint z) { require((z = x + y) >= x, 'ds-math-add-overflow'); } function sub(uint x, uint y) internal pure returns (uint z) { require((z = x - y) <= x, 'ds-math-sub-underflow'); } function mul(uint x, uint y) internal pure returns (uint z) { require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow'); } } // File: contracts/UniswapV2ERC20.sol pragma solidity =0.5.16; contract UniswapV2ERC20 is IUniswapV2ERC20 { using SafeMath for uint; string public constant name = 'Uniswap V2'; string public constant symbol = 'UNI-V2'; uint8 public constant decimals = 18; uint public totalSupply; mapping(address => uint) public balanceOf; mapping(address => mapping(address => uint)) public allowance; bytes32 public DOMAIN_SEPARATOR; // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9; mapping(address => uint) public nonces; event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); constructor() public { uint chainId; assembly { chainId := chainid } DOMAIN_SEPARATOR = keccak256( abi.encode( keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'), keccak256(bytes(name)), keccak256(bytes('1')), chainId, address(this) ) ); } function _mint(address to, uint value) internal { totalSupply = totalSupply.add(value); balanceOf[to] = balanceOf[to].add(value); emit Transfer(address(0), to, value); } function _burn(address from, uint value) internal { balanceOf[from] = balanceOf[from].sub(value); totalSupply = totalSupply.sub(value); emit Transfer(from, address(0), value); } function _approve(address owner, address spender, uint value) private { allowance[owner][spender] = value; emit Approval(owner, spender, value); } function _transfer(address from, address to, uint value) private { balanceOf[from] = balanceOf[from].sub(value); balanceOf[to] = balanceOf[to].add(value); emit Transfer(from, to, value); } function approve(address spender, uint value) external returns (bool) { _approve(msg.sender, spender, value); return true; } function transfer(address to, uint value) external returns (bool) { _transfer(msg.sender, to, value); return true; } function transferFrom(address from, address to, uint value) external returns (bool) { if (allowance[from][msg.sender] != uint(-1)) { allowance[from][msg.sender] = allowance[from][msg.sender].sub(value); } _transfer(from, to, value); return true; } function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external { require(deadline >= block.timestamp, 'UniswapV2: EXPIRED'); bytes32 digest = keccak256( abi.encodePacked( '\x19\x01', DOMAIN_SEPARATOR, keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline)) ) ); address recoveredAddress = ecrecover(digest, v, r, s); require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE'); _approve(owner, spender, value); } } // File: contracts/libraries/Math.sol pragma solidity =0.5.16; // a library for performing various math operations library Math { function min(uint x, uint y) internal pure returns (uint z) { z = x < y ? x : y; } // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method) function sqrt(uint y) internal pure returns (uint z) { if (y > 3) { z = y; uint x = y / 2 + 1; while (x < z) { z = x; x = (y / x + x) / 2; } } else if (y != 0) { z = 1; } } } // File: contracts/libraries/UQ112x112.sol pragma solidity =0.5.16; // a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format)) // range: [0, 2**112 - 1] // resolution: 1 / 2**112 library UQ112x112 { uint224 constant Q112 = 2**112; // encode a uint112 as a UQ112x112 function encode(uint112 y) internal pure returns (uint224 z) { z = uint224(y) * Q112; // never overflows } // divide a UQ112x112 by a uint112, returning a UQ112x112 function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) { z = x / uint224(y); } } // File: contracts/interfaces/IERC20.sol pragma solidity >=0.5.0; interface IERC20 { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external view returns (string memory); function symbol() external view returns (string memory); function decimals() external view returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); } // File: contracts/interfaces/IUniswapV2Factory.sol pragma solidity >=0.5.0; interface IUniswapV2Factory { event PairCreated(address indexed token0, address indexed token1, address pair, uint); function feeTo() external view returns (address); function feeToSetter() external view returns (address); function getPair(address tokenA, address tokenB) external view returns (address pair); function allPairs(uint) external view returns (address pair); function allPairsLength() external view returns (uint); function createPair(address tokenA, address tokenB) external returns (address pair); function setFeeTo(address) external; function setFeeToSetter(address) external; } // File: contracts/interfaces/IUniswapV2Callee.sol pragma solidity >=0.5.0; interface IUniswapV2Callee { function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external; } // File: contracts/UniswapV2Pair.sol pragma solidity =0.5.16; contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 { using SafeMath for uint; using UQ112x112 for uint224; uint public constant MINIMUM_LIQUIDITY = 10**3; bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)'))); address public factory; address public token0; address public token1; uint112 private reserve0; // uses single storage slot, accessible via getReserves uint112 private reserve1; // uses single storage slot, accessible via getReserves uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves uint public price0CumulativeLast; uint public price1CumulativeLast; uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event uint private unlocked = 1; modifier lock() { require(unlocked == 1, 'UniswapV2: LOCKED'); unlocked = 0; _; unlocked = 1; } function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) { _reserve0 = reserve0; _reserve1 = reserve1; _blockTimestampLast = blockTimestampLast; } function _safeTransfer(address token, address to, uint value) private { (bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value)); require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED'); } event Mint(address indexed sender, uint amount0, uint amount1); event Burn(address indexed sender, uint amount0, uint amount1, address indexed to); event Swap( address indexed sender, uint amount0In, uint amount1In, uint amount0Out, uint amount1Out, address indexed to ); event Sync(uint112 reserve0, uint112 reserve1); constructor() public { factory = msg.sender; } // called once by the factory at time of deployment function initialize(address _token0, address _token1) external { require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check token0 = _token0; token1 = _token1; } // update reserves and, on the first call per block, price accumulators function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private { require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW'); uint32 blockTimestamp = uint32(block.timestamp % 2**32); uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) { // * never overflows, and + overflow is desired price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed; price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed; } reserve0 = uint112(balance0); reserve1 = uint112(balance1); blockTimestampLast = blockTimestamp; emit Sync(reserve0, reserve1); } // if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k) function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) { address feeTo = IUniswapV2Factory(factory).feeTo(); feeOn = feeTo != address(0); uint _kLast = kLast; // gas savings if (feeOn) { if (_kLast != 0) { uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1)); uint rootKLast = Math.sqrt(_kLast); if (rootK > rootKLast) { uint numerator = totalSupply.mul(rootK.sub(rootKLast)); uint denominator = rootK.mul(5).add(rootKLast); uint liquidity = numerator / denominator; if (liquidity > 0) _mint(feeTo, liquidity); } } } else if (_kLast != 0) { kLast = 0; } } // this low-level function should be called from a contract which performs important safety checks function mint(address to) external lock returns (uint liquidity) { (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings uint balance0 = IERC20(token0).balanceOf(address(this)); uint balance1 = IERC20(token1).balanceOf(address(this)); uint amount0 = balance0.sub(_reserve0); uint amount1 = balance1.sub(_reserve1); bool feeOn = _mintFee(_reserve0, _reserve1); uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee if (_totalSupply == 0) { liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY); _mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens } else { liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1); } require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED'); _mint(to, liquidity); _update(balance0, balance1, _reserve0, _reserve1); if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date emit Mint(msg.sender, amount0, amount1); } // this low-level function should be called from a contract which performs important safety checks function burn(address to) external lock returns (uint amount0, uint amount1) { (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings address _token0 = token0; // gas savings address _token1 = token1; // gas savings uint balance0 = IERC20(_token0).balanceOf(address(this)); uint balance1 = IERC20(_token1).balanceOf(address(this)); uint liquidity = balanceOf[address(this)]; bool feeOn = _mintFee(_reserve0, _reserve1); uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED'); _burn(address(this), liquidity); _safeTransfer(_token0, to, amount0); _safeTransfer(_token1, to, amount1); balance0 = IERC20(_token0).balanceOf(address(this)); balance1 = IERC20(_token1).balanceOf(address(this)); _update(balance0, balance1, _reserve0, _reserve1); if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date emit Burn(msg.sender, amount0, amount1, to); } // this low-level function should be called from a contract which performs important safety checks function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock { require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT'); (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY'); uint balance0; uint balance1; { // scope for _token{0,1}, avoids stack too deep errors address _token0 = token0; address _token1 = token1; require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO'); if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data); balance0 = IERC20(_token0).balanceOf(address(this)); balance1 = IERC20(_token1).balanceOf(address(this)); } uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0; uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0; require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT'); { // scope for reserve{0,1}Adjusted, avoids stack too deep errors uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3)); uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3)); require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K'); } _update(balance0, balance1, _reserve0, _reserve1); emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to); } // force balances to match reserves function skim(address to) external lock { address _token0 = token0; // gas savings address _token1 = token1; // gas savings _safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0)); _safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1)); } // force reserves to match balances function sync() external lock { _update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1); } }
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// File: contracts/lib/InitializableOwnable.sol /* Copyright 2020 DODO ZOO. SPDX-License-Identifier: Apache-2.0 */ pragma solidity 0.6.9; pragma experimental ABIEncoderV2; /** * @title Ownable * @author DODO Breeder * * @notice Ownership related functions */ contract InitializableOwnable { address public _OWNER_; address public _NEW_OWNER_; bool internal _INITIALIZED_; // ============ Events ============ event OwnershipTransferPrepared(address indexed previousOwner, address indexed newOwner); event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); // ============ Modifiers ============ modifier notInitialized() { require(!_INITIALIZED_, "DODO_INITIALIZED"); _; } modifier onlyOwner() { require(msg.sender == _OWNER_, "NOT_OWNER"); _; } // ============ Functions ============ function initOwner(address newOwner) public notInitialized { _INITIALIZED_ = true; _OWNER_ = newOwner; } function transferOwnership(address newOwner) public onlyOwner { emit OwnershipTransferPrepared(_OWNER_, newOwner); _NEW_OWNER_ = newOwner; } function claimOwnership() public { require(msg.sender == _NEW_OWNER_, "INVALID_CLAIM"); emit OwnershipTransferred(_OWNER_, _NEW_OWNER_); _OWNER_ = _NEW_OWNER_; _NEW_OWNER_ = address(0); } } // File: contracts/lib/FeeRateModel.sol interface IFeeRateImpl { function getFeeRate(address pool, address trader) external view returns (uint256); } interface IFeeRateModel { function getFeeRate(address trader) external view returns (uint256); } contract FeeRateModel is InitializableOwnable { address public feeRateImpl; function setFeeProxy(address _feeRateImpl) public onlyOwner { feeRateImpl = _feeRateImpl; } function getFeeRate(address trader) external view returns (uint256) { if(feeRateImpl == address(0)) return 0; return IFeeRateImpl(feeRateImpl).getFeeRate(msg.sender,trader); } } // File: contracts/intf/IERC20.sol /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); function decimals() external view returns (uint8); function name() external view returns (string memory); function symbol() external view returns (string memory); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); } // File: contracts/lib/SafeMath.sol /** * @title SafeMath * @author DODO Breeder * * @notice Math operations with safety checks that revert on error */ library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "MUL_ERROR"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "DIVIDING_ERROR"); return a / b; } function divCeil(uint256 a, uint256 b) internal pure returns (uint256) { uint256 quotient = div(a, b); uint256 remainder = a - quotient * b; if (remainder > 0) { return quotient + 1; } else { return quotient; } } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SUB_ERROR"); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "ADD_ERROR"); return c; } function sqrt(uint256 x) internal pure returns (uint256 y) { uint256 z = x / 2 + 1; y = x; while (z < y) { y = z; z = (x / z + z) / 2; } } } // File: contracts/lib/DecimalMath.sol /** * @title DecimalMath * @author DODO Breeder * * @notice Functions for fixed point number with 18 decimals */ library DecimalMath { using SafeMath for uint256; uint256 internal constant ONE = 10**18; uint256 internal constant ONE2 = 10**36; function mulFloor(uint256 target, uint256 d) internal pure returns (uint256) { return target.mul(d) / (10**18); } function mulCeil(uint256 target, uint256 d) internal pure returns (uint256) { return target.mul(d).divCeil(10**18); } function divFloor(uint256 target, uint256 d) internal pure returns (uint256) { return target.mul(10**18).div(d); } function divCeil(uint256 target, uint256 d) internal pure returns (uint256) { return target.mul(10**18).divCeil(d); } function reciprocalFloor(uint256 target) internal pure returns (uint256) { return uint256(10**36).div(target); } function reciprocalCeil(uint256 target) internal pure returns (uint256) { return uint256(10**36).divCeil(target); } } // File: contracts/lib/DODOMath.sol /** * @title DODOMath * @author DODO Breeder * * @notice Functions for complex calculating. Including ONE Integration and TWO Quadratic solutions */ library DODOMath { using SafeMath for uint256; /* Integrate dodo curve from V1 to V2 require V0>=V1>=V2>0 res = (1-k)i(V1-V2)+ikV0*V0(1/V2-1/V1) let V1-V2=delta res = i*delta*(1-k+k(V0^2/V1/V2)) i is the price of V-res trading pair support k=1 & k=0 case [round down] */ function _GeneralIntegrate( uint256 V0, uint256 V1, uint256 V2, uint256 i, uint256 k ) internal pure returns (uint256) { require(V0 > 0, "TARGET_IS_ZERO"); uint256 fairAmount = i.mul(V1.sub(V2)); // i*delta if (k == 0) { return fairAmount.div(DecimalMath.ONE); } uint256 V0V0V1V2 = DecimalMath.divFloor(V0.mul(V0).div(V1), V2); uint256 penalty = DecimalMath.mulFloor(k, V0V0V1V2); // k(V0^2/V1/V2) return DecimalMath.ONE.sub(k).add(penalty).mul(fairAmount).div(DecimalMath.ONE2); } /* Follow the integration function above i*deltaB = (Q2-Q1)*(1-k+kQ0^2/Q1/Q2) Assume Q2=Q0, Given Q1 and deltaB, solve Q0 i is the price of delta-V trading pair give out target of V support k=1 & k=0 case [round down] */ function _SolveQuadraticFunctionForTarget( uint256 V1, uint256 delta, uint256 i, uint256 k ) internal pure returns (uint256) { if (V1 == 0) { return 0; } if (k == 0) { return V1.add(DecimalMath.mulFloor(i, delta)); } // V0 = V1*(1+(sqrt-1)/2k) // sqrt = √(1+4kidelta/V1) // premium = 1+(sqrt-1)/2k // uint256 sqrt = (4 * k).mul(i).mul(delta).div(V1).add(DecimalMath.ONE2).sqrt(); uint256 sqrt; uint256 ki = (4 * k).mul(i); if (ki == 0) { sqrt = DecimalMath.ONE; } else if ((ki * delta) / ki == delta) { sqrt = (ki * delta).div(V1).add(DecimalMath.ONE2).sqrt(); } else { sqrt = ki.div(V1).mul(delta).add(DecimalMath.ONE2).sqrt(); } uint256 premium = DecimalMath.divFloor(sqrt.sub(DecimalMath.ONE), k * 2).add(DecimalMath.ONE); // V0 is greater than or equal to V1 according to the solution return DecimalMath.mulFloor(V1, premium); } /* Follow the integration expression above, we have: i*deltaB = (Q2-Q1)*(1-k+kQ0^2/Q1/Q2) Given Q1 and deltaB, solve Q2 This is a quadratic function and the standard version is aQ2^2 + bQ2 + c = 0, where a=1-k -b=(1-k)Q1-kQ0^2/Q1+i*deltaB c=-kQ0^2 and Q2=(-b+sqrt(b^2+4(1-k)kQ0^2))/2(1-k) note: another root is negative, abondan if deltaBSig=true, then Q2>Q1, user sell Q and receive B if deltaBSig=false, then Q2<Q1, user sell B and receive Q return |Q1-Q2| as we only support sell amount as delta, the deltaB is always negative the input ideltaB is actually -ideltaB in the equation i is the price of delta-V trading pair support k=1 & k=0 case [round down] */ function _SolveQuadraticFunctionForTrade( uint256 V0, uint256 V1, uint256 delta, uint256 i, uint256 k ) internal pure returns (uint256) { require(V0 > 0, "TARGET_IS_ZERO"); if (delta == 0) { return 0; } if (k == 0) { return DecimalMath.mulFloor(i, delta) > V1 ? V1 : DecimalMath.mulFloor(i, delta); } if (k == DecimalMath.ONE) { // if k==1 // Q2=Q1/(1+ideltaBQ1/Q0/Q0) // temp = ideltaBQ1/Q0/Q0 // Q2 = Q1/(1+temp) // Q1-Q2 = Q1*(1-1/(1+temp)) = Q1*(temp/(1+temp)) // uint256 temp = i.mul(delta).mul(V1).div(V0.mul(V0)); uint256 temp; uint256 idelta = i.mul(delta); if (idelta == 0) { temp = 0; } else if ((idelta * V1) / idelta == V1) { temp = (idelta * V1).div(V0.mul(V0)); } else { temp = delta.mul(V1).div(V0).mul(i).div(V0); } return V1.mul(temp).div(temp.add(DecimalMath.ONE)); } // calculate -b value and sig // b = kQ0^2/Q1-i*deltaB-(1-k)Q1 // part1 = (1-k)Q1 >=0 // part2 = kQ0^2/Q1-i*deltaB >=0 // bAbs = abs(part1-part2) // if part1>part2 => b is negative => bSig is false // if part2>part1 => b is positive => bSig is true uint256 part2 = k.mul(V0).div(V1).mul(V0).add(i.mul(delta)); // kQ0^2/Q1-i*deltaB uint256 bAbs = DecimalMath.ONE.sub(k).mul(V1); // (1-k)Q1 bool bSig; if (bAbs >= part2) { bAbs = bAbs - part2; bSig = false; } else { bAbs = part2 - bAbs; bSig = true; } bAbs = bAbs.div(DecimalMath.ONE); // calculate sqrt uint256 squareRoot = DecimalMath.mulFloor( DecimalMath.ONE.sub(k).mul(4), DecimalMath.mulFloor(k, V0).mul(V0) ); // 4(1-k)kQ0^2 squareRoot = bAbs.mul(bAbs).add(squareRoot).sqrt(); // sqrt(b*b+4(1-k)kQ0*Q0) // final res uint256 denominator = DecimalMath.ONE.sub(k).mul(2); // 2(1-k) uint256 numerator; if (bSig) { numerator = squareRoot.sub(bAbs); } else { numerator = bAbs.add(squareRoot); } uint256 V2 = DecimalMath.divCeil(numerator, denominator); if (V2 > V1) { return 0; } else { return V1 - V2; } } } // File: contracts/lib/PMMPricing.sol /** * @title Pricing * @author DODO Breeder * * @notice DODO Pricing model */ library PMMPricing { using SafeMath for uint256; enum RState {ONE, ABOVE_ONE, BELOW_ONE} struct PMMState { uint256 i; uint256 K; uint256 B; uint256 Q; uint256 B0; uint256 Q0; RState R; } // ============ buy & sell ============ function sellBaseToken(PMMState memory state, uint256 payBaseAmount) internal pure returns (uint256 receiveQuoteAmount, RState newR) { if (state.R == RState.ONE) { // case 1: R=1 // R falls below one receiveQuoteAmount = _ROneSellBaseToken(state, payBaseAmount); newR = RState.BELOW_ONE; } else if (state.R == RState.ABOVE_ONE) { uint256 backToOnePayBase = state.B0.sub(state.B); uint256 backToOneReceiveQuote = state.Q.sub(state.Q0); // case 2: R>1 // complex case, R status depends on trading amount if (payBaseAmount < backToOnePayBase) { // case 2.1: R status do not change receiveQuoteAmount = _RAboveSellBaseToken(state, payBaseAmount); newR = RState.ABOVE_ONE; if (receiveQuoteAmount > backToOneReceiveQuote) { // [Important corner case!] may enter this branch when some precision problem happens. And consequently contribute to negative spare quote amount // to make sure spare quote>=0, mannually set receiveQuote=backToOneReceiveQuote receiveQuoteAmount = backToOneReceiveQuote; } } else if (payBaseAmount == backToOnePayBase) { // case 2.2: R status changes to ONE receiveQuoteAmount = backToOneReceiveQuote; newR = RState.ONE; } else { // case 2.3: R status changes to BELOW_ONE receiveQuoteAmount = backToOneReceiveQuote.add( _ROneSellBaseToken(state, payBaseAmount.sub(backToOnePayBase)) ); newR = RState.BELOW_ONE; } } else { // state.R == RState.BELOW_ONE // case 3: R<1 receiveQuoteAmount = _RBelowSellBaseToken(state, payBaseAmount); newR = RState.BELOW_ONE; } } function sellQuoteToken(PMMState memory state, uint256 payQuoteAmount) internal pure returns (uint256 receiveBaseAmount, RState newR) { if (state.R == RState.ONE) { receiveBaseAmount = _ROneSellQuoteToken(state, payQuoteAmount); newR = RState.ABOVE_ONE; } else if (state.R == RState.ABOVE_ONE) { receiveBaseAmount = _RAboveSellQuoteToken(state, payQuoteAmount); newR = RState.ABOVE_ONE; } else { uint256 backToOnePayQuote = state.Q0.sub(state.Q); uint256 backToOneReceiveBase = state.B.sub(state.B0); if (payQuoteAmount < backToOnePayQuote) { receiveBaseAmount = _RBelowSellQuoteToken(state, payQuoteAmount); newR = RState.BELOW_ONE; if (receiveBaseAmount > backToOneReceiveBase) { receiveBaseAmount = backToOneReceiveBase; } } else if (payQuoteAmount == backToOnePayQuote) { receiveBaseAmount = backToOneReceiveBase; newR = RState.ONE; } else { receiveBaseAmount = backToOneReceiveBase.add( _ROneSellQuoteToken(state, payQuoteAmount.sub(backToOnePayQuote)) ); newR = RState.ABOVE_ONE; } } } // ============ R = 1 cases ============ function _ROneSellBaseToken(PMMState memory state, uint256 payBaseAmount) internal pure returns ( uint256 // receiveQuoteToken ) { // in theory Q2 <= targetQuoteTokenAmount // however when amount is close to 0, precision problems may cause Q2 > targetQuoteTokenAmount return DODOMath._SolveQuadraticFunctionForTrade( state.Q0, state.Q0, payBaseAmount, state.i, state.K ); } function _ROneSellQuoteToken(PMMState memory state, uint256 payQuoteAmount) internal pure returns ( uint256 // receiveBaseToken ) { return DODOMath._SolveQuadraticFunctionForTrade( state.B0, state.B0, payQuoteAmount, DecimalMath.reciprocalFloor(state.i), state.K ); } // ============ R < 1 cases ============ function _RBelowSellQuoteToken(PMMState memory state, uint256 payQuoteAmount) internal pure returns ( uint256 // receiveBaseToken ) { return DODOMath._GeneralIntegrate( state.Q0, state.Q.add(payQuoteAmount), state.Q, DecimalMath.reciprocalFloor(state.i), state.K ); } function _RBelowSellBaseToken(PMMState memory state, uint256 payBaseAmount) internal pure returns ( uint256 // receiveQuoteToken ) { return DODOMath._SolveQuadraticFunctionForTrade( state.Q0, state.Q, payBaseAmount, state.i, state.K ); } // ============ R > 1 cases ============ function _RAboveSellBaseToken(PMMState memory state, uint256 payBaseAmount) internal pure returns ( uint256 // receiveQuoteToken ) { return DODOMath._GeneralIntegrate( state.B0, state.B.add(payBaseAmount), state.B, state.i, state.K ); } function _RAboveSellQuoteToken(PMMState memory state, uint256 payQuoteAmount) internal pure returns ( uint256 // receiveBaseToken ) { return DODOMath._SolveQuadraticFunctionForTrade( state.B0, state.B, payQuoteAmount, DecimalMath.reciprocalFloor(state.i), state.K ); } // ============ Helper functions ============ function adjustedTarget(PMMState memory state) internal pure { if (state.R == RState.BELOW_ONE) { state.Q0 = DODOMath._SolveQuadraticFunctionForTarget( state.Q, state.B.sub(state.B0), state.i, state.K ); } else if (state.R == RState.ABOVE_ONE) { state.B0 = DODOMath._SolveQuadraticFunctionForTarget( state.B, state.Q.sub(state.Q0), DecimalMath.reciprocalFloor(state.i), state.K ); } } function getMidPrice(PMMState memory state) internal pure returns (uint256) { if (state.R == RState.BELOW_ONE) { uint256 R = DecimalMath.divFloor(state.Q0.mul(state.Q0).div(state.Q), state.Q); R = DecimalMath.ONE.sub(state.K).add(DecimalMath.mulFloor(state.K, R)); return DecimalMath.divFloor(state.i, R); } else { uint256 R = DecimalMath.divFloor(state.B0.mul(state.B0).div(state.B), state.B); R = DecimalMath.ONE.sub(state.K).add(DecimalMath.mulFloor(state.K, R)); return DecimalMath.mulFloor(state.i, R); } } } // File: contracts/lib/SafeERC20.sol /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for ERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using SafeMath for uint256; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn( token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value) ); } function safeApprove( IERC20 token, address spender, uint256 value ) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. // A Solidity high level call has three parts: // 1. The target address is checked to verify it contains contract code // 2. The call itself is made, and success asserted // 3. The return value is decoded, which in turn checks the size of the returned data. // solhint-disable-next-line max-line-length // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = address(token).call(data); require(success, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } // File: contracts/lib/ReentrancyGuard.sol /** * @title ReentrancyGuard * @author DODO Breeder * * @notice Protect functions from Reentrancy Attack */ contract ReentrancyGuard { // https://solidity.readthedocs.io/en/latest/control-structures.html?highlight=zero-state#scoping-and-declarations // zero-state of _ENTERED_ is false bool private _ENTERED_; modifier preventReentrant() { require(!_ENTERED_, "REENTRANT"); _ENTERED_ = true; _; _ENTERED_ = false; } } // File: contracts/DODOStablePool/impl/DSPStorage.sol contract DSPStorage is ReentrancyGuard { using SafeMath for uint256; bool internal _DSP_INITIALIZED_; bool public _IS_OPEN_TWAP_ = false; // ============ Core Address ============ address public _MAINTAINER_; IERC20 public _BASE_TOKEN_; IERC20 public _QUOTE_TOKEN_; uint112 public _BASE_RESERVE_; uint112 public _QUOTE_RESERVE_; uint32 public _BLOCK_TIMESTAMP_LAST_; uint256 public _BASE_PRICE_CUMULATIVE_LAST_; uint112 public _BASE_TARGET_; uint112 public _QUOTE_TARGET_; uint32 public _RState_; // ============ Shares (ERC20) ============ string public symbol; uint8 public decimals; string public name; uint256 public totalSupply; mapping(address => uint256) internal _SHARES_; mapping(address => mapping(address => uint256)) internal _ALLOWED_; // ================= Permit ====================== bytes32 public DOMAIN_SEPARATOR; // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9; mapping(address => uint256) public nonces; // ============ Variables for Pricing ============ IFeeRateModel public _MT_FEE_RATE_MODEL_; uint256 public _LP_FEE_RATE_; uint256 public _K_; uint256 public _I_; // ============ Helper Functions ============ function getPMMState() public view returns (PMMPricing.PMMState memory state) { state.i = _I_; state.K = _K_; state.B = _BASE_RESERVE_; state.Q = _QUOTE_RESERVE_; state.B0 = _BASE_TARGET_; // will be calculated in adjustedTarget state.Q0 = _QUOTE_TARGET_; state.R = PMMPricing.RState(_RState_); PMMPricing.adjustedTarget(state); } function getPMMStateForCall() external view returns ( uint256 i, uint256 K, uint256 B, uint256 Q, uint256 B0, uint256 Q0, uint256 R ) { PMMPricing.PMMState memory state = getPMMState(); i = state.i; K = state.K; B = state.B; Q = state.Q; B0 = state.B0; Q0 = state.Q0; R = uint256(state.R); } function getMidPrice() public view returns (uint256 midPrice) { return PMMPricing.getMidPrice(getPMMState()); } } // File: contracts/DODOStablePool/impl/DSPVault.sol contract DSPVault is DSPStorage { using SafeMath for uint256; using SafeERC20 for IERC20; // ============ Events ============ event Transfer(address indexed from, address indexed to, uint256 amount); event Approval(address indexed owner, address indexed spender, uint256 amount); event Mint(address indexed user, uint256 value); event Burn(address indexed user, uint256 value); // ============ View Functions ============ function getVaultReserve() external view returns (uint256 baseReserve, uint256 quoteReserve) { baseReserve = _BASE_RESERVE_; quoteReserve = _QUOTE_RESERVE_; } function getUserFeeRate(address user) external view returns (uint256 lpFeeRate, uint256 mtFeeRate) { lpFeeRate = _LP_FEE_RATE_; mtFeeRate = _MT_FEE_RATE_MODEL_.getFeeRate(user); } // ============ Asset In ============ function getBaseInput() public view returns (uint256 input) { return _BASE_TOKEN_.balanceOf(address(this)).sub(uint256(_BASE_RESERVE_)); } function getQuoteInput() public view returns (uint256 input) { return _QUOTE_TOKEN_.balanceOf(address(this)).sub(uint256(_QUOTE_RESERVE_)); } // ============ TWAP UPDATE =========== function _twapUpdate() internal { uint32 blockTimestamp = uint32(block.timestamp % 2**32); uint32 timeElapsed = blockTimestamp - _BLOCK_TIMESTAMP_LAST_; if (timeElapsed > 0 && _BASE_RESERVE_ != 0 && _QUOTE_RESERVE_ != 0) { _BASE_PRICE_CUMULATIVE_LAST_ += getMidPrice() * timeElapsed; } _BLOCK_TIMESTAMP_LAST_ = blockTimestamp; } // ============ Set States ============ function _setReserve(uint256 baseReserve, uint256 quoteReserve) internal { require(baseReserve <= uint112(-1) && quoteReserve <= uint112(-1), "OVERFLOW"); _BASE_RESERVE_ = uint112(baseReserve); _QUOTE_RESERVE_ = uint112(quoteReserve); if (_IS_OPEN_TWAP_) _twapUpdate(); } function _sync() internal { uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this)); uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this)); require(baseBalance <= uint112(-1) && quoteBalance <= uint112(-1), "OVERFLOW"); if (baseBalance != _BASE_RESERVE_) { _BASE_RESERVE_ = uint112(baseBalance); } if (quoteBalance != _QUOTE_RESERVE_) { _QUOTE_RESERVE_ = uint112(quoteBalance); } if (_IS_OPEN_TWAP_) _twapUpdate(); } function sync() external preventReentrant { _sync(); } function correctRState() public { if (_RState_ == uint32(PMMPricing.RState.BELOW_ONE) && _BASE_RESERVE_<_BASE_TARGET_) { _RState_ = uint32(PMMPricing.RState.ONE); _BASE_TARGET_ = _BASE_RESERVE_; _QUOTE_TARGET_ = _QUOTE_RESERVE_; } if (_RState_ == uint32(PMMPricing.RState.ABOVE_ONE) && _QUOTE_RESERVE_<_QUOTE_TARGET_) { _RState_ = uint32(PMMPricing.RState.ONE); _BASE_TARGET_ = _BASE_RESERVE_; _QUOTE_TARGET_ = _QUOTE_RESERVE_; } } // ============ Asset Out ============ function _transferBaseOut(address to, uint256 amount) internal { if (amount > 0) { _BASE_TOKEN_.safeTransfer(to, amount); } } function _transferQuoteOut(address to, uint256 amount) internal { if (amount > 0) { _QUOTE_TOKEN_.safeTransfer(to, amount); } } // ============ Shares (ERC20) ============ /** * @dev transfer token for a specified address * @param to The address to transfer to. * @param amount The amount to be transferred. */ function transfer(address to, uint256 amount) public returns (bool) { require(amount <= _SHARES_[msg.sender], "BALANCE_NOT_ENOUGH"); _SHARES_[msg.sender] = _SHARES_[msg.sender].sub(amount); _SHARES_[to] = _SHARES_[to].add(amount); emit Transfer(msg.sender, to, amount); return true; } /** * @dev Gets the balance of the specified address. * @param owner The address to query the the balance of. * @return balance An uint256 representing the amount owned by the passed address. */ function balanceOf(address owner) external view returns (uint256 balance) { return _SHARES_[owner]; } /** * @dev Transfer tokens from one address to another * @param from address The address which you want to send tokens from * @param to address The address which you want to transfer to * @param amount uint256 the amount of tokens to be transferred */ function transferFrom( address from, address to, uint256 amount ) public returns (bool) { require(amount <= _SHARES_[from], "BALANCE_NOT_ENOUGH"); require(amount <= _ALLOWED_[from][msg.sender], "ALLOWANCE_NOT_ENOUGH"); _SHARES_[from] = _SHARES_[from].sub(amount); _SHARES_[to] = _SHARES_[to].add(amount); _ALLOWED_[from][msg.sender] = _ALLOWED_[from][msg.sender].sub(amount); emit Transfer(from, to, amount); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param spender The address which will spend the funds. * @param amount The amount of tokens to be spent. */ function approve(address spender, uint256 amount) public returns (bool) { _approve(msg.sender, spender, amount); return true; } function _approve( address owner, address spender, uint256 amount ) private { _ALLOWED_[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Function to check the amount of tokens that an owner _ALLOWED_ to a spender. * @param owner address The address which owns the funds. * @param spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address owner, address spender) public view returns (uint256) { return _ALLOWED_[owner][spender]; } function _mint(address user, uint256 value) internal { require(value > 1000, "MINT_AMOUNT_NOT_ENOUGH"); _SHARES_[user] = _SHARES_[user].add(value); totalSupply = totalSupply.add(value); emit Mint(user, value); emit Transfer(address(0), user, value); } function _burn(address user, uint256 value) internal { _SHARES_[user] = _SHARES_[user].sub(value); totalSupply = totalSupply.sub(value); emit Burn(user, value); emit Transfer(user, address(0), value); } // ============================ Permit ====================================== function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external { require(deadline >= block.timestamp, "DODO_DSP_LP: EXPIRED"); bytes32 digest = keccak256( abi.encodePacked( "\x19\x01", DOMAIN_SEPARATOR, keccak256( abi.encode( PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline ) ) ) ); address recoveredAddress = ecrecover(digest, v, r, s); require( recoveredAddress != address(0) && recoveredAddress == owner, "DODO_DSP_LP: INVALID_SIGNATURE" ); _approve(owner, spender, value); } } // File: contracts/intf/IDODOCallee.sol interface IDODOCallee { function DVMSellShareCall( address sender, uint256 burnShareAmount, uint256 baseAmount, uint256 quoteAmount, bytes calldata data ) external; function DVMFlashLoanCall( address sender, uint256 baseAmount, uint256 quoteAmount, bytes calldata data ) external; function DPPFlashLoanCall( address sender, uint256 baseAmount, uint256 quoteAmount, bytes calldata data ) external; function DSPFlashLoanCall( address sender, uint256 baseAmount, uint256 quoteAmount, bytes calldata data ) external; function CPCancelCall( address sender, uint256 amount, bytes calldata data ) external; function CPClaimBidCall( address sender, uint256 baseAmount, uint256 quoteAmount, bytes calldata data ) external; } // File: contracts/DODOStablePool/impl/DSPTrader.sol contract DSPTrader is DSPVault { using SafeMath for uint256; // ============ Events ============ event DODOSwap( address fromToken, address toToken, uint256 fromAmount, uint256 toAmount, address trader, address receiver ); event DODOFlashLoan(address borrower, address assetTo, uint256 baseAmount, uint256 quoteAmount); event RChange(PMMPricing.RState newRState); // ============ Trade Functions ============ function sellBase(address to) external preventReentrant returns (uint256 receiveQuoteAmount) { uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this)); uint256 baseInput = baseBalance.sub(uint256(_BASE_RESERVE_)); uint256 mtFee; uint256 newBaseTarget; PMMPricing.RState newRState; (receiveQuoteAmount, mtFee, newRState, newBaseTarget) = querySellBase(tx.origin, baseInput); _transferQuoteOut(to, receiveQuoteAmount); _transferQuoteOut(_MAINTAINER_, mtFee); // update TARGET if (_RState_ != uint32(newRState)) { require(newBaseTarget <= uint112(-1), "OVERFLOW"); _BASE_TARGET_ = uint112(newBaseTarget); _RState_ = uint32(newRState); emit RChange(newRState); } _setReserve(baseBalance, _QUOTE_TOKEN_.balanceOf(address(this))); emit DODOSwap( address(_BASE_TOKEN_), address(_QUOTE_TOKEN_), baseInput, receiveQuoteAmount, msg.sender, to ); } function sellQuote(address to) external preventReentrant returns (uint256 receiveBaseAmount) { uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this)); uint256 quoteInput = quoteBalance.sub(uint256(_QUOTE_RESERVE_)); uint256 mtFee; uint256 newQuoteTarget; PMMPricing.RState newRState; (receiveBaseAmount, mtFee, newRState, newQuoteTarget) = querySellQuote( tx.origin, quoteInput ); _transferBaseOut(to, receiveBaseAmount); _transferBaseOut(_MAINTAINER_, mtFee); // update TARGET if (_RState_ != uint32(newRState)) { require(newQuoteTarget <= uint112(-1), "OVERFLOW"); _QUOTE_TARGET_ = uint112(newQuoteTarget); _RState_ = uint32(newRState); emit RChange(newRState); } _setReserve(_BASE_TOKEN_.balanceOf(address(this)), quoteBalance); emit DODOSwap( address(_QUOTE_TOKEN_), address(_BASE_TOKEN_), quoteInput, receiveBaseAmount, msg.sender, to ); } function flashLoan( uint256 baseAmount, uint256 quoteAmount, address assetTo, bytes calldata data ) external preventReentrant { _transferBaseOut(assetTo, baseAmount); _transferQuoteOut(assetTo, quoteAmount); if (data.length > 0) IDODOCallee(assetTo).DSPFlashLoanCall(msg.sender, baseAmount, quoteAmount, data); uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this)); uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this)); // no input -> pure loss require( baseBalance >= _BASE_RESERVE_ || quoteBalance >= _QUOTE_RESERVE_, "FLASH_LOAN_FAILED" ); // sell quote case // quote input + base output if (baseBalance < _BASE_RESERVE_) { uint256 quoteInput = quoteBalance.sub(uint256(_QUOTE_RESERVE_)); ( uint256 receiveBaseAmount, uint256 mtFee, PMMPricing.RState newRState, uint256 newQuoteTarget ) = querySellQuote(tx.origin, quoteInput); // revert if quoteBalance<quoteReserve require( uint256(_BASE_RESERVE_).sub(baseBalance) <= receiveBaseAmount, "FLASH_LOAN_FAILED" ); _transferBaseOut(_MAINTAINER_, mtFee); if (_RState_ != uint32(newRState)) { require(newQuoteTarget <= uint112(-1), "OVERFLOW"); _QUOTE_TARGET_ = uint112(newQuoteTarget); _RState_ = uint32(newRState); emit RChange(newRState); } emit DODOSwap( address(_QUOTE_TOKEN_), address(_BASE_TOKEN_), quoteInput, receiveBaseAmount, msg.sender, assetTo ); } // sell base case // base input + quote output if (quoteBalance < _QUOTE_RESERVE_) { uint256 baseInput = baseBalance.sub(uint256(_BASE_RESERVE_)); ( uint256 receiveQuoteAmount, uint256 mtFee, PMMPricing.RState newRState, uint256 newBaseTarget ) = querySellBase(tx.origin, baseInput); // revert if baseBalance<baseReserve require( uint256(_QUOTE_RESERVE_).sub(quoteBalance) <= receiveQuoteAmount, "FLASH_LOAN_FAILED" ); _transferQuoteOut(_MAINTAINER_, mtFee); if (_RState_ != uint32(newRState)) { require(newBaseTarget <= uint112(-1), "OVERFLOW"); _BASE_TARGET_ = uint112(newBaseTarget); _RState_ = uint32(newRState); emit RChange(newRState); } emit DODOSwap( address(_BASE_TOKEN_), address(_QUOTE_TOKEN_), baseInput, receiveQuoteAmount, msg.sender, assetTo ); } _sync(); emit DODOFlashLoan(msg.sender, assetTo, baseAmount, quoteAmount); } // ============ Query Functions ============ function querySellBase(address trader, uint256 payBaseAmount) public view returns ( uint256 receiveQuoteAmount, uint256 mtFee, PMMPricing.RState newRState, uint256 newBaseTarget ) { PMMPricing.PMMState memory state = getPMMState(); (receiveQuoteAmount, newRState) = PMMPricing.sellBaseToken(state, payBaseAmount); uint256 lpFeeRate = _LP_FEE_RATE_; uint256 mtFeeRate = _MT_FEE_RATE_MODEL_.getFeeRate(trader); mtFee = DecimalMath.mulFloor(receiveQuoteAmount, mtFeeRate); receiveQuoteAmount = receiveQuoteAmount .sub(DecimalMath.mulFloor(receiveQuoteAmount, lpFeeRate)) .sub(mtFee); newBaseTarget = state.B0; } function querySellQuote(address trader, uint256 payQuoteAmount) public view returns ( uint256 receiveBaseAmount, uint256 mtFee, PMMPricing.RState newRState, uint256 newQuoteTarget ) { PMMPricing.PMMState memory state = getPMMState(); (receiveBaseAmount, newRState) = PMMPricing.sellQuoteToken(state, payQuoteAmount); uint256 lpFeeRate = _LP_FEE_RATE_; uint256 mtFeeRate = _MT_FEE_RATE_MODEL_.getFeeRate(trader); mtFee = DecimalMath.mulFloor(receiveBaseAmount, mtFeeRate); receiveBaseAmount = receiveBaseAmount .sub(DecimalMath.mulFloor(receiveBaseAmount, lpFeeRate)) .sub(mtFee); newQuoteTarget = state.Q0; } } // File: contracts/DODOStablePool/impl/DSPFunding.sol contract DSPFunding is DSPVault { // ============ Events ============ event BuyShares(address to, uint256 increaseShares, uint256 totalShares); event SellShares(address payer, address to, uint256 decreaseShares, uint256 totalShares); // ============ Buy & Sell Shares ============ // buy shares [round down] function buyShares(address to) external preventReentrant returns ( uint256 shares, uint256 baseInput, uint256 quoteInput ) { uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this)); uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this)); uint256 baseReserve = _BASE_RESERVE_; uint256 quoteReserve = _QUOTE_RESERVE_; baseInput = baseBalance.sub(baseReserve); quoteInput = quoteBalance.sub(quoteReserve); require(baseInput > 0, "NO_BASE_INPUT"); // Round down when withdrawing. Therefore, never be a situation occuring balance is 0 but totalsupply is not 0 // But May Happen,reserve >0 But totalSupply = 0 if (totalSupply == 0) { // case 1. initial supply shares = quoteBalance < DecimalMath.mulFloor(baseBalance, _I_) ? DecimalMath.divFloor(quoteBalance, _I_) : baseBalance; _BASE_TARGET_ = uint112(shares); _QUOTE_TARGET_ = uint112(DecimalMath.mulFloor(shares, _I_)); } else if (baseReserve > 0 && quoteReserve > 0) { // case 2. normal case uint256 baseInputRatio = DecimalMath.divFloor(baseInput, baseReserve); uint256 quoteInputRatio = DecimalMath.divFloor(quoteInput, quoteReserve); uint256 mintRatio = quoteInputRatio < baseInputRatio ? quoteInputRatio : baseInputRatio; shares = DecimalMath.mulFloor(totalSupply, mintRatio); _BASE_TARGET_ = uint112(uint256(_BASE_TARGET_).add(DecimalMath.mulFloor(uint256(_BASE_TARGET_), mintRatio))); _QUOTE_TARGET_ = uint112(uint256(_QUOTE_TARGET_).add(DecimalMath.mulFloor(uint256(_QUOTE_TARGET_), mintRatio))); } _mint(to, shares); _setReserve(baseBalance, quoteBalance); emit BuyShares(to, shares, _SHARES_[to]); } // sell shares [round down] function sellShares( uint256 shareAmount, address to, uint256 baseMinAmount, uint256 quoteMinAmount, bytes calldata data, uint256 deadline ) external preventReentrant returns (uint256 baseAmount, uint256 quoteAmount) { require(deadline >= block.timestamp, "TIME_EXPIRED"); require(shareAmount <= _SHARES_[msg.sender], "DLP_NOT_ENOUGH"); uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this)); uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this)); uint256 totalShares = totalSupply; baseAmount = baseBalance.mul(shareAmount).div(totalShares); quoteAmount = quoteBalance.mul(shareAmount).div(totalShares); _BASE_TARGET_ = uint112(uint256(_BASE_TARGET_).sub(uint256(_BASE_TARGET_).mul(shareAmount).divCeil(totalShares))); _QUOTE_TARGET_ = uint112(uint256(_QUOTE_TARGET_).sub(uint256(_QUOTE_TARGET_).mul(shareAmount).divCeil(totalShares))); require( baseAmount >= baseMinAmount && quoteAmount >= quoteMinAmount, "WITHDRAW_NOT_ENOUGH" ); _burn(msg.sender, shareAmount); _transferBaseOut(to, baseAmount); _transferQuoteOut(to, quoteAmount); _sync(); if (data.length > 0) { //Same as DVM IDODOCallee(to).DVMSellShareCall( msg.sender, shareAmount, baseAmount, quoteAmount, data ); } emit SellShares(msg.sender, to, shareAmount, _SHARES_[msg.sender]); } } // File: contracts/DODOStablePool/impl/DSP.sol /** * @title DODO StablePool * @author DODO Breeder * * @notice DODOStablePool initialization */ contract DSP is DSPTrader, DSPFunding { function init( address maintainer, address baseTokenAddress, address quoteTokenAddress, uint256 lpFeeRate, address mtFeeRateModel, uint256 i, uint256 k, bool isOpenTWAP ) external { require(!_DSP_INITIALIZED_, "DSP_INITIALIZED"); _DSP_INITIALIZED_ = true; require(baseTokenAddress != quoteTokenAddress, "BASE_QUOTE_CAN_NOT_BE_SAME"); _BASE_TOKEN_ = IERC20(baseTokenAddress); _QUOTE_TOKEN_ = IERC20(quoteTokenAddress); require(i > 0 && i <= 10**36); _I_ = i; require(k <= 10**18); _K_ = k; _LP_FEE_RATE_ = lpFeeRate; _MT_FEE_RATE_MODEL_ = IFeeRateModel(mtFeeRateModel); _MAINTAINER_ = maintainer; _IS_OPEN_TWAP_ = isOpenTWAP; if (isOpenTWAP) _BLOCK_TIMESTAMP_LAST_ = uint32(block.timestamp % 2**32); string memory connect = "_"; string memory suffix = "DLP"; name = string(abi.encodePacked(suffix, connect, addressToShortString(address(this)))); symbol = "DLP"; decimals = _BASE_TOKEN_.decimals(); // ============================== Permit ==================================== uint256 chainId; assembly { chainId := chainid() } DOMAIN_SEPARATOR = keccak256( abi.encode( // keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'), 0x8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f, keccak256(bytes(name)), keccak256(bytes("1")), chainId, address(this) ) ); // ========================================================================== } function addressToShortString(address _addr) public pure returns (string memory) { bytes32 value = bytes32(uint256(_addr)); bytes memory alphabet = "0123456789abcdef"; bytes memory str = new bytes(8); for (uint256 i = 0; i < 4; i++) { str[i * 2] = alphabet[uint8(value[i + 12] >> 4)]; str[1 + i * 2] = alphabet[uint8(value[i + 12] & 0x0f)]; } return string(str); } // ============ Version Control ============ function version() external pure returns (string memory) { return "DSP 1.0.1"; } }
1
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pragma solidity 0.7.5; /* The MIT License (MIT) Copyright (c) 2018 Murray Software, LLC. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ //solhint-disable max-line-length //solhint-disable no-inline-assembly contract CloneFactory { function createClone(address target, bytes32 salt) internal returns (address payable result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the clone contract data let clone := mload(0x40) // The bytecode block below is responsible for contract initialization // during deployment, it is worth noting the proxied contract constructor will not be called during // the cloning procedure and that is why an initialization function needs to be called after the // clone is created mstore( clone, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000 ) // This stores the address location of the implementation contract // so that the proxy knows where to delegate call logic to mstore(add(clone, 0x14), targetBytes) // The bytecode block is the actual code that is deployed for each clone created. // It forwards all calls to the already deployed implementation via a delegatecall mstore( add(clone, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // deploy the contract using the CREATE2 opcode // this deploys the minimal proxy defined above, which will proxy all // calls to use the logic defined in the implementation contract `target` result := create2(0, clone, 0x37, salt) } } function isClone(address target, address query) internal view returns (bool result) { bytes20 targetBytes = bytes20(target); assembly { // load the next free memory slot as a place to store the comparison clone let clone := mload(0x40) // The next three lines store the expected bytecode for a miniml proxy // that targets `target` as its implementation contract mstore( clone, 0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000 ) mstore(add(clone, 0xa), targetBytes) mstore( add(clone, 0x1e), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000 ) // the next two lines store the bytecode of the contract that we are checking in memory let other := add(clone, 0x40) extcodecopy(query, other, 0, 0x2d) // Check if the expected bytecode equals the actual bytecode and return the result result := and( eq(mload(clone), mload(other)), eq(mload(add(clone, 0xd)), mload(add(other, 0xd))) ) } } } /** * Contract that exposes the needed erc20 token functions */ abstract contract ERC20Interface { // Send _value amount of tokens to address _to function transfer(address _to, uint256 _value) public virtual returns (bool success); // Get the account balance of another account with address _owner function balanceOf(address _owner) public virtual view returns (uint256 balance); } // helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false library TransferHelper { function safeApprove( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('approve(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeApprove: approve failed' ); } function safeTransfer( address token, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transfer(address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::safeTransfer: transfer failed' ); } function safeTransferFrom( address token, address from, address to, uint256 value ) internal { // bytes4(keccak256(bytes('transferFrom(address,address,uint256)'))); (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value)); require( success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper::transferFrom: transferFrom failed' ); } function safeTransferETH(address to, uint256 value) internal { (bool success, ) = to.call{value: value}(new bytes(0)); require(success, 'TransferHelper::safeTransferETH: ETH transfer failed'); } } /** * Contract that will forward any incoming Ether to the creator of the contract * */ contract Forwarder { // Address to which any funds sent to this contract will be forwarded address public parentAddress; event ForwarderDeposited(address from, uint256 value, bytes data); /** * Initialize the contract, and sets the destination address to that of the creator */ function init(address _parentAddress) external onlyUninitialized { parentAddress = _parentAddress; uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); // NOTE: since we are forwarding on initialization, // we don't have the context of the original sender. // We still emit an event about the forwarding but set // the sender to the forwarder itself emit ForwarderDeposited(address(this), value, msg.data); } /** * Modifier that will execute internal code block only if the sender is the parent address */ modifier onlyParent { require(msg.sender == parentAddress, 'Only Parent'); _; } /** * Modifier that will execute internal code block only if the contract has not been initialized yet */ modifier onlyUninitialized { require(parentAddress == address(0x0), 'Already initialized'); _; } /** * Default function; Gets called when data is sent but does not match any other function */ fallback() external payable { flush(); } /** * Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address */ receive() external payable { flush(); } /** * Execute a token transfer of the full balance from the forwarder token to the parent address * @param tokenContractAddress the address of the erc20 token contract */ function flushTokens(address tokenContractAddress) external onlyParent { ERC20Interface instance = ERC20Interface(tokenContractAddress); address forwarderAddress = address(this); uint256 forwarderBalance = instance.balanceOf(forwarderAddress); if (forwarderBalance == 0) { return; } TransferHelper.safeTransfer( tokenContractAddress, parentAddress, forwarderBalance ); } /** * Flush the entire balance of the contract to the parent address. */ function flush() public { uint256 value = address(this).balance; if (value == 0) { return; } (bool success, ) = parentAddress.call{ value: value }(''); require(success, 'Flush failed'); emit ForwarderDeposited(msg.sender, value, msg.data); } } contract ForwarderFactory is CloneFactory { address public implementationAddress; event ForwarderCreated(address newForwarderAddress, address parentAddress); constructor(address _implementationAddress) { implementationAddress = _implementationAddress; } function createForwarder(address parent, bytes32 salt) external { // include the signers in the salt so any contract deployed to a given address must have the same signers bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt)); address payable clone = createClone(implementationAddress, finalSalt); Forwarder(clone).init(parent); emit ForwarderCreated(clone, parent); } }
1
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cc1271fe8721c336a3f8cb112fd224ff0adcf6ab
7b8c48256caf462670f84c7e849cab216922b8d3
0336a665cbb11663284ec54740f29e4831594101
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{{ "language": "Solidity", "sources": { "contracts/interface/RocketStorageInterface.sol": { "content": "/**\r\n * .\r\n * / \\\r\n * |.'.|\r\n * |'.'|\r\n * ,'| |`.\r\n * |,-'-|-'-.|\r\n * __|_| | _ _ _____ _\r\n * | ___ \\| | | | | | ___ \\ | |\r\n * | |_/ /|__ ___| | _____| |_ | |_/ /__ ___ | |\r\n * | // _ \\ / __| |/ / _ \\ __| | __/ _ \\ / _ \\| |\r\n * | |\\ \\ (_) | (__| < __/ |_ | | | (_) | (_) | |\r\n * \\_| \\_\\___/ \\___|_|\\_\\___|\\__| \\_| \\___/ \\___/|_|\r\n * +---------------------------------------------------+\r\n * | DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0 |\r\n * +---------------------------------------------------+\r\n *\r\n * Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,\r\n * decentralised, trustless and compatible with staking in Ethereum 2.0.\r\n *\r\n * For more information about Rocket Pool, visit https://rocketpool.net\r\n *\r\n * Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty\r\n *\r\n */\r\n\r\npragma solidity >0.5.0 <0.9.0;\n\n// SPDX-License-Identifier: GPL-3.0-only\n\ninterface RocketStorageInterface {\n\n // Deploy status\n function getDeployedStatus() external view returns (bool);\n\n // Guardian\n function getGuardian() external view returns(address);\n function setGuardian(address _newAddress) external;\n function confirmGuardian() external;\n\n // Getters\n function getAddress(bytes32 _key) external view returns (address);\n function getUint(bytes32 _key) external view returns (uint);\n function getString(bytes32 _key) external view returns (string memory);\n function getBytes(bytes32 _key) external view returns (bytes memory);\n function getBool(bytes32 _key) external view returns (bool);\n function getInt(bytes32 _key) external view returns (int);\n function getBytes32(bytes32 _key) external view returns (bytes32);\n\n // Setters\n function setAddress(bytes32 _key, address _value) external;\n function setUint(bytes32 _key, uint _value) external;\n function setString(bytes32 _key, string calldata _value) external;\n function setBytes(bytes32 _key, bytes calldata _value) external;\n function setBool(bytes32 _key, bool _value) external;\n function setInt(bytes32 _key, int _value) external;\n function setBytes32(bytes32 _key, bytes32 _value) external;\n\n // Deleters\n function deleteAddress(bytes32 _key) external;\n function deleteUint(bytes32 _key) external;\n function deleteString(bytes32 _key) external;\n function deleteBytes(bytes32 _key) external;\n function deleteBool(bytes32 _key) external;\n function deleteInt(bytes32 _key) external;\n function deleteBytes32(bytes32 _key) external;\n\n // Arithmetic\n function addUint(bytes32 _key, uint256 _amount) external;\n function subUint(bytes32 _key, uint256 _amount) external;\n\n // Protected storage\n function getNodeWithdrawalAddress(address _nodeAddress) external view returns (address);\n function getNodePendingWithdrawalAddress(address _nodeAddress) external view returns (address);\n function setWithdrawalAddress(address _nodeAddress, address _newWithdrawalAddress, bool _confirm) external;\n function confirmWithdrawalAddress(address _nodeAddress) external;\n}\n" }, "contracts/types/MinipoolDeposit.sol": { "content": "/**\r\n * .\r\n * / \\\r\n * |.'.|\r\n * |'.'|\r\n * ,'| |`.\r\n * |,-'-|-'-.|\r\n * __|_| | _ _ _____ _\r\n * | ___ \\| | | | | | ___ \\ | |\r\n * | |_/ /|__ ___| | _____| |_ | |_/ /__ ___ | |\r\n * | // _ \\ / __| |/ / _ \\ __| | __/ _ \\ / _ \\| |\r\n * | |\\ \\ (_) | (__| < __/ |_ | | | (_) | (_) | |\r\n * \\_| \\_\\___/ \\___|_|\\_\\___|\\__| \\_| \\___/ \\___/|_|\r\n * +---------------------------------------------------+\r\n * | DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0 |\r\n * +---------------------------------------------------+\r\n *\r\n * Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,\r\n * decentralised, trustless and compatible with staking in Ethereum 2.0.\r\n *\r\n * For more information about Rocket Pool, visit https://rocketpool.net\r\n *\r\n * Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty\r\n *\r\n */\r\n\r\npragma solidity 0.7.6;\n\n// SPDX-License-Identifier: GPL-3.0-only\n\n// Represents the type of deposits required by a minipool\n\nenum MinipoolDeposit {\n None, // Marks an invalid deposit type\n Full, // The minipool requires 32 ETH from the node operator, 16 ETH of which will be refinanced from user deposits\n Half, // The minipool required 16 ETH from the node operator to be matched with 16 ETH from user deposits\n Empty, // The minipool requires 0 ETH from the node operator to be matched with 32 ETH from user deposits (trusted nodes only)\n Variable // Indicates this minipool is of the new generation that supports a variable deposit amount\n}\n" }, "contracts/types/MinipoolStatus.sol": { "content": "/**\r\n * .\r\n * / \\\r\n * |.'.|\r\n * |'.'|\r\n * ,'| |`.\r\n * |,-'-|-'-.|\r\n * __|_| | _ _ _____ _\r\n * | ___ \\| | | | | | ___ \\ | |\r\n * | |_/ /|__ ___| | _____| |_ | |_/ /__ ___ | |\r\n * | // _ \\ / __| |/ / _ \\ __| | __/ _ \\ / _ \\| |\r\n * | |\\ \\ (_) | (__| < __/ |_ | | | (_) | (_) | |\r\n * \\_| \\_\\___/ \\___|_|\\_\\___|\\__| \\_| \\___/ \\___/|_|\r\n * +---------------------------------------------------+\r\n * | DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0 |\r\n * +---------------------------------------------------+\r\n *\r\n * Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,\r\n * decentralised, trustless and compatible with staking in Ethereum 2.0.\r\n *\r\n * For more information about Rocket Pool, visit https://rocketpool.net\r\n *\r\n * Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty\r\n *\r\n */\r\n\r\npragma solidity 0.7.6;\n\n// SPDX-License-Identifier: GPL-3.0-only\n\n// Represents a minipool's status within the network\n\nenum MinipoolStatus {\n Initialised, // The minipool has been initialised and is awaiting a deposit of user ETH\n Prelaunch, // The minipool has enough ETH to begin staking and is awaiting launch by the node operator\n Staking, // The minipool is currently staking\n Withdrawable, // NO LONGER USED\n Dissolved // The minipool has been dissolved and its user deposited ETH has been returned to the deposit pool\n}\n" }, "contracts/contract/minipool/RocketMinipoolStorageLayout.sol": { "content": "/**\r\n * .\r\n * / \\\r\n * |.'.|\r\n * |'.'|\r\n * ,'| |`.\r\n * |,-'-|-'-.|\r\n * __|_| | _ _ _____ _\r\n * | ___ \\| | | | | | ___ \\ | |\r\n * | |_/ /|__ ___| | _____| |_ | |_/ /__ ___ | |\r\n * | // _ \\ / __| |/ / _ \\ __| | __/ _ \\ / _ \\| |\r\n * | |\\ \\ (_) | (__| < __/ |_ | | | (_) | (_) | |\r\n * \\_| \\_\\___/ \\___|_|\\_\\___|\\__| \\_| \\___/ \\___/|_|\r\n * +---------------------------------------------------+\r\n * | DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0 |\r\n * +---------------------------------------------------+\r\n *\r\n * Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,\r\n * decentralised, trustless and compatible with staking in Ethereum 2.0.\r\n *\r\n * For more information about Rocket Pool, visit https://rocketpool.net\r\n *\r\n * Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty\r\n *\r\n */\r\n\r\npragma solidity 0.7.6;\n\n// SPDX-License-Identifier: GPL-3.0-only\n\nimport \"../../interface/RocketStorageInterface.sol\";\nimport \"../../types/MinipoolDeposit.sol\";\nimport \"../../types/MinipoolStatus.sol\";\n\n// The RocketMinipool contract storage layout, shared by RocketMinipoolDelegate\n\n// ******************************************************\n// Note: This contract MUST NOT BE UPDATED after launch.\n// All deployed minipool contracts must maintain a\n// Consistent storage layout with RocketMinipoolDelegate.\n// ******************************************************\n\nabstract contract RocketMinipoolStorageLayout {\n // Storage state enum\n enum StorageState {\n Undefined,\n Uninitialised,\n Initialised\n }\n\n\t// Main Rocket Pool storage contract\n RocketStorageInterface internal rocketStorage = RocketStorageInterface(0);\n\n // Status\n MinipoolStatus internal status;\n uint256 internal statusBlock;\n uint256 internal statusTime;\n uint256 internal withdrawalBlock;\n\n // Deposit type\n MinipoolDeposit internal depositType;\n\n // Node details\n address internal nodeAddress;\n uint256 internal nodeFee;\n uint256 internal nodeDepositBalance;\n bool internal nodeDepositAssigned; // NO LONGER IN USE\n uint256 internal nodeRefundBalance;\n uint256 internal nodeSlashBalance;\n\n // User deposit details\n uint256 internal userDepositBalanceLegacy;\n uint256 internal userDepositAssignedTime;\n\n // Upgrade options\n bool internal useLatestDelegate = false;\n address internal rocketMinipoolDelegate;\n address internal rocketMinipoolDelegatePrev;\n\n // Local copy of RETH address\n address internal rocketTokenRETH;\n\n // Local copy of penalty contract\n address internal rocketMinipoolPenalty;\n\n // Used to prevent direct access to delegate and prevent calling initialise more than once\n StorageState internal storageState = StorageState.Undefined;\n\n // Whether node operator has finalised the pool\n bool internal finalised;\n\n // Trusted member scrub votes\n mapping(address => bool) internal memberScrubVotes;\n uint256 internal totalScrubVotes;\n\n // Variable minipool\n uint256 internal preLaunchValue;\n uint256 internal userDepositBalance;\n\n // Vacant minipool\n bool internal vacant;\n uint256 internal preMigrationBalance;\n\n // User distribution\n bool internal userDistributed;\n uint256 internal userDistributeTime;\n}\n" }, "contracts/interface/minipool/RocketMinipoolBaseInterface.sol": { "content": "/**\r\n * .\r\n * / \\\r\n * |.'.|\r\n * |'.'|\r\n * ,'| |`.\r\n * |,-'-|-'-.|\r\n * __|_| | _ _ _____ _\r\n * | ___ \\| | | | | | ___ \\ | |\r\n * | |_/ /|__ ___| | _____| |_ | |_/ /__ ___ | |\r\n * | // _ \\ / __| |/ / _ \\ __| | __/ _ \\ / _ \\| |\r\n * | |\\ \\ (_) | (__| < __/ |_ | | | (_) | (_) | |\r\n * \\_| \\_\\___/ \\___|_|\\_\\___|\\__| \\_| \\___/ \\___/|_|\r\n * +---------------------------------------------------+\r\n * | DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0 |\r\n * +---------------------------------------------------+\r\n *\r\n * Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,\r\n * decentralised, trustless and compatible with staking in Ethereum 2.0.\r\n *\r\n * For more information about Rocket Pool, visit https://rocketpool.net\r\n *\r\n * Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty\r\n *\r\n */\r\n\r\npragma solidity >0.5.0 <0.9.0;\n\n// SPDX-License-Identifier: GPL-3.0-only\n\ninterface RocketMinipoolBaseInterface {\n function initialise(address _rocketStorage, address _nodeAddress) external;\n function delegateUpgrade() external;\n function delegateRollback() external;\n function setUseLatestDelegate(bool _setting) external;\n function getUseLatestDelegate() external view returns (bool);\n function getDelegate() external view returns (address);\n function getPreviousDelegate() external view returns (address);\n function getEffectiveDelegate() external view returns (address);\n}\n" }, "contracts/contract/minipool/RocketMinipoolBase.sol": { "content": "/**\r\n * .\r\n * / \\\r\n * |.'.|\r\n * |'.'|\r\n * ,'| |`.\r\n * |,-'-|-'-.|\r\n * __|_| | _ _ _____ _\r\n * | ___ \\| | | | | | ___ \\ | |\r\n * | |_/ /|__ ___| | _____| |_ | |_/ /__ ___ | |\r\n * | // _ \\ / __| |/ / _ \\ __| | __/ _ \\ / _ \\| |\r\n * | |\\ \\ (_) | (__| < __/ |_ | | | (_) | (_) | |\r\n * \\_| \\_\\___/ \\___|_|\\_\\___|\\__| \\_| \\___/ \\___/|_|\r\n * +---------------------------------------------------+\r\n * | DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0 |\r\n * +---------------------------------------------------+\r\n *\r\n * Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,\r\n * decentralised, trustless and compatible with staking in Ethereum 2.0.\r\n *\r\n * For more information about Rocket Pool, visit https://rocketpool.net\r\n *\r\n * Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty\r\n *\r\n */\r\n\r\n// SPDX-License-Identifier: GPL-3.0-only\npragma solidity 0.7.6;\n\nimport \"./RocketMinipoolStorageLayout.sol\";\nimport \"../../interface/RocketStorageInterface.sol\";\nimport \"../../interface/minipool/RocketMinipoolBaseInterface.sol\";\n\n/// @notice Contains the initialisation and delegate upgrade logic for minipools\ncontract RocketMinipoolBase is RocketMinipoolBaseInterface, RocketMinipoolStorageLayout {\n\n // Events\n event EtherReceived(address indexed from, uint256 amount, uint256 time);\n event DelegateUpgraded(address oldDelegate, address newDelegate, uint256 time);\n event DelegateRolledBack(address oldDelegate, address newDelegate, uint256 time);\n\n // Store a reference to the address of RocketMinipoolBase itself to prevent direct calls to this contract\n address immutable self;\n\n constructor () {\n self = address(this);\n }\n\n /// @dev Prevent direct calls to this contract\n modifier notSelf() {\n require(address(this) != self);\n _;\n }\n\n /// @dev Only allow access from the owning node address\n modifier onlyMinipoolOwner() {\n // Only the node operator can upgrade\n address withdrawalAddress = rocketStorage.getNodeWithdrawalAddress(nodeAddress);\n require(msg.sender == nodeAddress || msg.sender == withdrawalAddress, \"Only the node operator can access this method\");\n _;\n }\n\n /// @notice Sets up starting delegate contract and then delegates initialisation to it\n function initialise(address _rocketStorage, address _nodeAddress) external override notSelf {\n // Check input\n require(_nodeAddress != address(0), \"Invalid node address\");\n require(storageState == StorageState.Undefined, \"Already initialised\");\n // Set storage state to uninitialised\n storageState = StorageState.Uninitialised;\n // Set rocketStorage\n rocketStorage = RocketStorageInterface(_rocketStorage);\n // Set the current delegate\n address delegateAddress = getContractAddress(\"rocketMinipoolDelegate\");\n rocketMinipoolDelegate = delegateAddress;\n // Check for contract existence\n require(contractExists(delegateAddress), \"Delegate contract does not exist\");\n // Call initialise on delegate\n (bool success, bytes memory data) = delegateAddress.delegatecall(abi.encodeWithSignature('initialise(address)', _nodeAddress));\n if (!success) { revert(getRevertMessage(data)); }\n }\n\n /// @notice Receive an ETH deposit\n receive() external payable notSelf {\n // Emit ether received event\n emit EtherReceived(msg.sender, msg.value, block.timestamp);\n }\n\n /// @notice Upgrade this minipool to the latest network delegate contract\n function delegateUpgrade() external override onlyMinipoolOwner notSelf {\n // Set previous address\n rocketMinipoolDelegatePrev = rocketMinipoolDelegate;\n // Set new delegate\n rocketMinipoolDelegate = getContractAddress(\"rocketMinipoolDelegate\");\n // Verify\n require(rocketMinipoolDelegate != rocketMinipoolDelegatePrev, \"New delegate is the same as the existing one\");\n // Log event\n emit DelegateUpgraded(rocketMinipoolDelegatePrev, rocketMinipoolDelegate, block.timestamp);\n }\n\n /// @notice Rollback to previous delegate contract\n function delegateRollback() external override onlyMinipoolOwner notSelf {\n // Make sure they have upgraded before\n require(rocketMinipoolDelegatePrev != address(0x0), \"Previous delegate contract is not set\");\n // Store original\n address originalDelegate = rocketMinipoolDelegate;\n // Update delegate to previous and zero out previous\n rocketMinipoolDelegate = rocketMinipoolDelegatePrev;\n rocketMinipoolDelegatePrev = address(0x0);\n // Log event\n emit DelegateRolledBack(originalDelegate, rocketMinipoolDelegate, block.timestamp);\n }\n\n /// @notice Sets the flag to automatically use the latest delegate contract or not\n /// @param _setting If true, will always use the latest delegate contract\n function setUseLatestDelegate(bool _setting) external override onlyMinipoolOwner notSelf {\n useLatestDelegate = _setting;\n }\n\n /// @notice Returns true if this minipool always uses the latest delegate contract\n function getUseLatestDelegate() external override view returns (bool) {\n return useLatestDelegate;\n }\n\n /// @notice Returns the address of the minipool's stored delegate\n function getDelegate() external override view returns (address) {\n return rocketMinipoolDelegate;\n }\n\n /// @notice Returns the address of the minipool's previous delegate (or address(0) if not set)\n function getPreviousDelegate() external override view returns (address) {\n return rocketMinipoolDelegatePrev;\n }\n\n /// @notice Returns the delegate which will be used when calling this minipool taking into account useLatestDelegate setting\n function getEffectiveDelegate() external override view returns (address) {\n return useLatestDelegate ? getContractAddress(\"rocketMinipoolDelegate\") : rocketMinipoolDelegate;\n }\n\n /// @notice Delegates all calls to minipool delegate contract (or latest if flag is set)\n fallback(bytes calldata _input) external payable notSelf returns (bytes memory) {\n // If useLatestDelegate is set, use the latest delegate contract\n address delegateContract = useLatestDelegate ? getContractAddress(\"rocketMinipoolDelegate\") : rocketMinipoolDelegate;\n // Check for contract existence\n require(contractExists(delegateContract), \"Delegate contract does not exist\");\n // Execute delegatecall\n (bool success, bytes memory data) = delegateContract.delegatecall(_input);\n if (!success) { revert(getRevertMessage(data)); }\n return data;\n }\n\n /// @dev Get the address of a Rocket Pool network contract\n function getContractAddress(string memory _contractName) private view returns (address) {\n address contractAddress = rocketStorage.getAddress(keccak256(abi.encodePacked(\"contract.address\", _contractName)));\n require(contractAddress != address(0x0), \"Contract not found\");\n return contractAddress;\n }\n\n /// @dev Get a revert message from delegatecall return data\n function getRevertMessage(bytes memory _returnData) private pure returns (string memory) {\n if (_returnData.length < 68) { return \"Transaction reverted silently\"; }\n assembly {\n _returnData := add(_returnData, 0x04)\n }\n return abi.decode(_returnData, (string));\n }\n\n /// @dev Returns true if contract exists at _contractAddress (if called during that contract's construction it will return a false negative)\n function contractExists(address _contractAddress) private view returns (bool) {\n uint32 codeSize;\n assembly {\n codeSize := extcodesize(_contractAddress)\n }\n return codeSize > 0;\n }\n}\n" } }, "settings": { "optimizer": { "enabled": true, "runs": 15000 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } } }}
1
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1e68238ce926dec62b3fbc99ab06eb1d85ce0270
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{{ "language": "Solidity", "sources": { "src/contracts/ConsensusLayerFeeDispatcher.sol": { "content": "//SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.8.10;\n\nimport \"./libs/DispatchersStorageLib.sol\";\nimport \"./interfaces/IStakingContractFeeDetails.sol\";\nimport \"./interfaces/IFeeDispatcher.sol\";\n\n/// @title Consensus Layer Fee Recipient\n/// @author Kiln\n/// @notice This contract can be used to receive fees from a validator and split them with a node operator\ncontract ConsensusLayerFeeDispatcher is IFeeDispatcher {\n using DispatchersStorageLib for bytes32;\n\n event Withdrawal(\n address indexed withdrawer,\n address indexed feeRecipient,\n bytes32 pubKeyRoot,\n uint256 rewards,\n uint256 nodeOperatorFee,\n uint256 treasuryFee\n );\n\n error TreasuryReceiveError(bytes errorData);\n error FeeRecipientReceiveError(bytes errorData);\n error WithdrawerReceiveError(bytes errorData);\n error ZeroBalanceWithdrawal();\n error AlreadyInitialized();\n error InvalidCall();\n error NotImplemented();\n\n bytes32 internal constant STAKING_CONTRACT_ADDRESS_SLOT =\n keccak256(\"ConsensusLayerFeeRecipient.stakingContractAddress\");\n uint256 internal constant BASIS_POINTS = 10_000;\n bytes32 internal constant VERSION_SLOT = keccak256(\"ConsensusLayerFeeRecipient.version\");\n\n /// @notice Ensures an initialisation call has been called only once per _version value\n /// @param _version The current initialisation value\n modifier init(uint256 _version) {\n if (_version != VERSION_SLOT.getUint256() + 1) {\n revert AlreadyInitialized();\n }\n\n VERSION_SLOT.setUint256(_version);\n\n _;\n }\n\n /// @notice Constructor method allowing us to prevent calls to initCLFR by setting the appropriate version\n constructor(uint256 _version) {\n VERSION_SLOT.setUint256(_version);\n }\n\n /// @notice Initialize the contract by storing the staking contract\n /// @param _stakingContract Address of the Staking Contract\n function initCLD(address _stakingContract) external init(1) {\n STAKING_CONTRACT_ADDRESS_SLOT.setAddress(_stakingContract);\n }\n\n /// @notice Performs a withdrawal on this contract's balance\n function dispatch(bytes32) external payable {\n revert NotImplemented();\n /*\n uint256 balance = address(this).balance; // this has taken into account msg.value\n if (balance == 0) {\n revert ZeroBalanceWithdrawal();\n }\n IStakingContractFeeDetails stakingContract = IStakingContractFeeDetails(\n STAKING_CONTRACT_ADDRESS_SLOT.getAddress()\n );\n address withdrawer = stakingContract.getWithdrawerFromPublicKeyRoot(_publicKeyRoot);\n address operator = stakingContract.getOperatorFeeRecipient(_publicKeyRoot);\n address treasury = stakingContract.getTreasury();\n uint256 globalFee;\n\n if (balance >= 32 ether) {\n // withdrawing a healthy & exited validator\n globalFee = ((balance - 32 ether) * stakingContract.getGlobalFee()) / BASIS_POINTS;\n } else if (balance <= 16 ether) {\n // withdrawing from what looks like skimming\n globalFee = (balance * stakingContract.getGlobalFee()) / BASIS_POINTS;\n }\n\n uint256 operatorFee = (globalFee * stakingContract.getOperatorFee()) / BASIS_POINTS;\n\n (bool status, bytes memory data) = withdrawer.call{value: balance - globalFee}(\"\");\n if (status == false) {\n revert WithdrawerReceiveError(data);\n }\n if (globalFee > 0) {\n (status, data) = treasury.call{value: globalFee - operatorFee}(\"\");\n if (status == false) {\n revert FeeRecipientReceiveError(data);\n }\n }\n if (operatorFee > 0) {\n (status, data) = operator.call{value: operatorFee}(\"\");\n if (status == false) {\n revert TreasuryReceiveError(data);\n }\n }\n emit Withdrawal(withdrawer, operator, balance - globalFee, operatorFee, globalFee - operatorFee);\n */\n }\n\n /// @notice Retrieve the staking contract address\n function getStakingContract() external view returns (address) {\n return STAKING_CONTRACT_ADDRESS_SLOT.getAddress();\n }\n\n /// @notice Retrieve the assigned withdrawer for the given public key root\n /// @param _publicKeyRoot Public key root to get the owner\n function getWithdrawer(bytes32 _publicKeyRoot) external view returns (address) {\n IStakingContractFeeDetails stakingContract = IStakingContractFeeDetails(\n STAKING_CONTRACT_ADDRESS_SLOT.getAddress()\n );\n return stakingContract.getWithdrawerFromPublicKeyRoot(_publicKeyRoot);\n }\n\n receive() external payable {\n revert InvalidCall();\n }\n\n fallback() external payable {\n revert InvalidCall();\n }\n}\n" }, "src/contracts/libs/DispatchersStorageLib.sol": { "content": "//SPDX-License-Identifier: MIT\npragma solidity >=0.8.10;\n\nlibrary DispatchersStorageLib {\n function getUint256(bytes32 position) internal view returns (uint256 data) {\n assembly {\n data := sload(position)\n }\n }\n\n function setUint256(bytes32 position, uint256 data) internal {\n assembly {\n sstore(position, data)\n }\n }\n\n function getAddress(bytes32 position) internal view returns (address data) {\n assembly {\n data := sload(position)\n }\n }\n\n function setAddress(bytes32 position, address data) internal {\n assembly {\n sstore(position, data)\n }\n }\n}\n" }, "src/contracts/interfaces/IStakingContractFeeDetails.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.10;\n\ninterface IStakingContractFeeDetails {\n function getWithdrawerFromPublicKeyRoot(bytes32 _publicKeyRoot) external view returns (address);\n\n function getTreasury() external view returns (address);\n\n function getOperatorFeeRecipient(bytes32 pubKeyRoot) external view returns (address);\n\n function getGlobalFee() external view returns (uint256);\n\n function getOperatorFee() external view returns (uint256);\n}\n" }, "src/contracts/interfaces/IFeeDispatcher.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.10;\n\ninterface IFeeDispatcher {\n function dispatch(bytes32 _publicKeyRoot) external payable;\n\n function getWithdrawer(bytes32 _publicKeyRoot) external view returns (address);\n}\n" }, "src/contracts/FeeRecipient.sol": { "content": "//SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.8.10;\n\nimport \"./interfaces/IFeeDispatcher.sol\";\n\ncontract FeeRecipient {\n /// @notice Constructor replay prevention\n bool internal initialized;\n /// @notice Address where funds are sent to be dispatched\n IFeeDispatcher internal dispatcher;\n /// @notice Public Key root assigned to this receiver\n bytes32 internal publicKeyRoot;\n\n error AlreadyInitialized();\n\n /// @notice Initializes the receiver\n /// @param _dispatcher Address that will handle the fee dispatching\n /// @param _publicKeyRoot Public Key root assigned to this receiver\n function init(address _dispatcher, bytes32 _publicKeyRoot) external {\n if (initialized) {\n revert AlreadyInitialized();\n }\n initialized = true;\n dispatcher = IFeeDispatcher(_dispatcher);\n publicKeyRoot = _publicKeyRoot;\n }\n\n /// @notice Empty calldata fallback\n receive() external payable {}\n\n /// @notice Non-empty calldata fallback\n fallback() external payable {}\n\n /// @notice Triggers a withdrawal by sending its funds + its public key root to the dispatcher\n /// @dev Can be called by any wallet as recipients are not parameters\n function withdraw() external {\n dispatcher.dispatch{value: address(this).balance}(publicKeyRoot);\n }\n\n /// @notice Retrieve the assigned public key root\n function getPublicKeyRoot() external view returns (bytes32) {\n return publicKeyRoot;\n }\n\n /// @notice retrieve the assigned withdrawer\n function getWithdrawer() external view returns (address) {\n return dispatcher.getWithdrawer(publicKeyRoot);\n }\n}\n" }, "src/contracts/ExecutionLayerFeeDispatcher.sol": { "content": "//SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.8.10;\n\nimport \"./libs/DispatchersStorageLib.sol\";\nimport \"./interfaces/IStakingContractFeeDetails.sol\";\nimport \"./interfaces/IFeeDispatcher.sol\";\n\n/// @title Execution Layer Fee Recipient\n/// @author Kiln\n/// @notice This contract can be used to receive fees from a validator and split them with a node operator\ncontract ExecutionLayerFeeDispatcher is IFeeDispatcher {\n using DispatchersStorageLib for bytes32;\n\n event Withdrawal(\n address indexed withdrawer,\n address indexed feeRecipient,\n bytes32 pubKeyRoot,\n uint256 rewards,\n uint256 nodeOperatorFee,\n uint256 treasuryFee\n );\n\n error TreasuryReceiveError(bytes errorData);\n error FeeRecipientReceiveError(bytes errorData);\n error WithdrawerReceiveError(bytes errorData);\n error ZeroBalanceWithdrawal();\n error AlreadyInitialized();\n error InvalidCall();\n\n bytes32 internal constant STAKING_CONTRACT_ADDRESS_SLOT =\n keccak256(\"ExecutionLayerFeeRecipient.stakingContractAddress\");\n uint256 internal constant BASIS_POINTS = 10_000;\n bytes32 internal constant VERSION_SLOT = keccak256(\"ExecutionLayerFeeRecipient.version\");\n\n /// @notice Ensures an initialisation call has been called only once per _version value\n /// @param _version The current initialisation value\n modifier init(uint256 _version) {\n if (_version != VERSION_SLOT.getUint256() + 1) {\n revert AlreadyInitialized();\n }\n\n VERSION_SLOT.setUint256(_version);\n\n _;\n }\n\n /// @notice Constructor method allowing us to prevent calls to initCLFR by setting the appropriate version\n constructor(uint256 _version) {\n VERSION_SLOT.setUint256(_version);\n }\n\n /// @notice Initialize the contract by storing the staking contract and the public key in storage\n /// @param _stakingContract Address of the Staking Contract\n function initELD(address _stakingContract) external init(1) {\n STAKING_CONTRACT_ADDRESS_SLOT.setAddress(_stakingContract);\n }\n\n /// @notice Performs a withdrawal on this contract's balance\n function dispatch(bytes32 _publicKeyRoot) external payable {\n uint256 balance = address(this).balance;\n if (balance == 0) {\n revert ZeroBalanceWithdrawal();\n }\n IStakingContractFeeDetails stakingContract = IStakingContractFeeDetails(\n STAKING_CONTRACT_ADDRESS_SLOT.getAddress()\n );\n address withdrawer = stakingContract.getWithdrawerFromPublicKeyRoot(_publicKeyRoot);\n address operator = stakingContract.getOperatorFeeRecipient(_publicKeyRoot);\n address treasury = stakingContract.getTreasury();\n uint256 globalFee = (balance * stakingContract.getGlobalFee()) / BASIS_POINTS;\n uint256 operatorFee = (globalFee * stakingContract.getOperatorFee()) / BASIS_POINTS;\n\n (bool status, bytes memory data) = withdrawer.call{value: balance - globalFee}(\"\");\n if (status == false) {\n revert WithdrawerReceiveError(data);\n }\n if (globalFee > 0) {\n (status, data) = treasury.call{value: globalFee - operatorFee}(\"\");\n if (status == false) {\n revert FeeRecipientReceiveError(data);\n }\n }\n if (operatorFee > 0) {\n (status, data) = operator.call{value: operatorFee}(\"\");\n if (status == false) {\n revert TreasuryReceiveError(data);\n }\n }\n emit Withdrawal(\n withdrawer,\n operator,\n _publicKeyRoot,\n balance - globalFee,\n operatorFee,\n globalFee - operatorFee\n );\n }\n\n /// @notice Retrieve the staking contract address\n function getStakingContract() external view returns (address) {\n return STAKING_CONTRACT_ADDRESS_SLOT.getAddress();\n }\n\n /// @notice Retrieve the assigned withdrawer for the given public key root\n /// @param _publicKeyRoot Public key root to get the owner\n function getWithdrawer(bytes32 _publicKeyRoot) external view returns (address) {\n IStakingContractFeeDetails stakingContract = IStakingContractFeeDetails(\n STAKING_CONTRACT_ADDRESS_SLOT.getAddress()\n );\n return stakingContract.getWithdrawerFromPublicKeyRoot(_publicKeyRoot);\n }\n\n receive() external payable {\n revert InvalidCall();\n }\n\n fallback() external payable {\n revert InvalidCall();\n }\n}\n" } }, "settings": { "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } }, "metadata": { "useLiteralContent": true } } }}
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{{ "language": "Solidity", "sources": { "src/contracts/ConsensusLayerFeeDispatcher.sol": { "content": "//SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.8.10;\n\nimport \"./libs/DispatchersStorageLib.sol\";\nimport \"./interfaces/IStakingContractFeeDetails.sol\";\nimport \"./interfaces/IFeeDispatcher.sol\";\n\n/// @title Consensus Layer Fee Recipient\n/// @author Kiln\n/// @notice This contract can be used to receive fees from a validator and split them with a node operator\ncontract ConsensusLayerFeeDispatcher is IFeeDispatcher {\n using DispatchersStorageLib for bytes32;\n\n event Withdrawal(\n address indexed withdrawer,\n address indexed feeRecipient,\n bytes32 pubKeyRoot,\n uint256 rewards,\n uint256 nodeOperatorFee,\n uint256 treasuryFee\n );\n\n error TreasuryReceiveError(bytes errorData);\n error FeeRecipientReceiveError(bytes errorData);\n error WithdrawerReceiveError(bytes errorData);\n error ZeroBalanceWithdrawal();\n error AlreadyInitialized();\n error InvalidCall();\n error NotImplemented();\n\n bytes32 internal constant STAKING_CONTRACT_ADDRESS_SLOT =\n keccak256(\"ConsensusLayerFeeRecipient.stakingContractAddress\");\n uint256 internal constant BASIS_POINTS = 10_000;\n bytes32 internal constant VERSION_SLOT = keccak256(\"ConsensusLayerFeeRecipient.version\");\n\n /// @notice Ensures an initialisation call has been called only once per _version value\n /// @param _version The current initialisation value\n modifier init(uint256 _version) {\n if (_version != VERSION_SLOT.getUint256() + 1) {\n revert AlreadyInitialized();\n }\n\n VERSION_SLOT.setUint256(_version);\n\n _;\n }\n\n /// @notice Constructor method allowing us to prevent calls to initCLFR by setting the appropriate version\n constructor(uint256 _version) {\n VERSION_SLOT.setUint256(_version);\n }\n\n /// @notice Initialize the contract by storing the staking contract\n /// @param _stakingContract Address of the Staking Contract\n function initCLD(address _stakingContract) external init(1) {\n STAKING_CONTRACT_ADDRESS_SLOT.setAddress(_stakingContract);\n }\n\n /// @notice Performs a withdrawal on this contract's balance\n function dispatch(bytes32) external payable {\n revert NotImplemented();\n /*\n uint256 balance = address(this).balance; // this has taken into account msg.value\n if (balance == 0) {\n revert ZeroBalanceWithdrawal();\n }\n IStakingContractFeeDetails stakingContract = IStakingContractFeeDetails(\n STAKING_CONTRACT_ADDRESS_SLOT.getAddress()\n );\n address withdrawer = stakingContract.getWithdrawerFromPublicKeyRoot(_publicKeyRoot);\n address operator = stakingContract.getOperatorFeeRecipient(_publicKeyRoot);\n address treasury = stakingContract.getTreasury();\n uint256 globalFee;\n\n if (balance >= 32 ether) {\n // withdrawing a healthy & exited validator\n globalFee = ((balance - 32 ether) * stakingContract.getGlobalFee()) / BASIS_POINTS;\n } else if (balance <= 16 ether) {\n // withdrawing from what looks like skimming\n globalFee = (balance * stakingContract.getGlobalFee()) / BASIS_POINTS;\n }\n\n uint256 operatorFee = (globalFee * stakingContract.getOperatorFee()) / BASIS_POINTS;\n\n (bool status, bytes memory data) = withdrawer.call{value: balance - globalFee}(\"\");\n if (status == false) {\n revert WithdrawerReceiveError(data);\n }\n if (globalFee > 0) {\n (status, data) = treasury.call{value: globalFee - operatorFee}(\"\");\n if (status == false) {\n revert FeeRecipientReceiveError(data);\n }\n }\n if (operatorFee > 0) {\n (status, data) = operator.call{value: operatorFee}(\"\");\n if (status == false) {\n revert TreasuryReceiveError(data);\n }\n }\n emit Withdrawal(withdrawer, operator, balance - globalFee, operatorFee, globalFee - operatorFee);\n */\n }\n\n /// @notice Retrieve the staking contract address\n function getStakingContract() external view returns (address) {\n return STAKING_CONTRACT_ADDRESS_SLOT.getAddress();\n }\n\n /// @notice Retrieve the assigned withdrawer for the given public key root\n /// @param _publicKeyRoot Public key root to get the owner\n function getWithdrawer(bytes32 _publicKeyRoot) external view returns (address) {\n IStakingContractFeeDetails stakingContract = IStakingContractFeeDetails(\n STAKING_CONTRACT_ADDRESS_SLOT.getAddress()\n );\n return stakingContract.getWithdrawerFromPublicKeyRoot(_publicKeyRoot);\n }\n\n receive() external payable {\n revert InvalidCall();\n }\n\n fallback() external payable {\n revert InvalidCall();\n }\n}\n" }, "src/contracts/libs/DispatchersStorageLib.sol": { "content": "//SPDX-License-Identifier: MIT\npragma solidity >=0.8.10;\n\nlibrary DispatchersStorageLib {\n function getUint256(bytes32 position) internal view returns (uint256 data) {\n assembly {\n data := sload(position)\n }\n }\n\n function setUint256(bytes32 position, uint256 data) internal {\n assembly {\n sstore(position, data)\n }\n }\n\n function getAddress(bytes32 position) internal view returns (address data) {\n assembly {\n data := sload(position)\n }\n }\n\n function setAddress(bytes32 position, address data) internal {\n assembly {\n sstore(position, data)\n }\n }\n}\n" }, "src/contracts/interfaces/IStakingContractFeeDetails.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.10;\n\ninterface IStakingContractFeeDetails {\n function getWithdrawerFromPublicKeyRoot(bytes32 _publicKeyRoot) external view returns (address);\n\n function getTreasury() external view returns (address);\n\n function getOperatorFeeRecipient(bytes32 pubKeyRoot) external view returns (address);\n\n function getGlobalFee() external view returns (uint256);\n\n function getOperatorFee() external view returns (uint256);\n}\n" }, "src/contracts/interfaces/IFeeDispatcher.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.10;\n\ninterface IFeeDispatcher {\n function dispatch(bytes32 _publicKeyRoot) external payable;\n\n function getWithdrawer(bytes32 _publicKeyRoot) external view returns (address);\n}\n" }, "src/contracts/FeeRecipient.sol": { "content": "//SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.8.10;\n\nimport \"./interfaces/IFeeDispatcher.sol\";\n\ncontract FeeRecipient {\n /// @notice Constructor replay prevention\n bool internal initialized;\n /// @notice Address where funds are sent to be dispatched\n IFeeDispatcher internal dispatcher;\n /// @notice Public Key root assigned to this receiver\n bytes32 internal publicKeyRoot;\n\n error AlreadyInitialized();\n\n /// @notice Initializes the receiver\n /// @param _dispatcher Address that will handle the fee dispatching\n /// @param _publicKeyRoot Public Key root assigned to this receiver\n function init(address _dispatcher, bytes32 _publicKeyRoot) external {\n if (initialized) {\n revert AlreadyInitialized();\n }\n initialized = true;\n dispatcher = IFeeDispatcher(_dispatcher);\n publicKeyRoot = _publicKeyRoot;\n }\n\n /// @notice Empty calldata fallback\n receive() external payable {}\n\n /// @notice Non-empty calldata fallback\n fallback() external payable {}\n\n /// @notice Triggers a withdrawal by sending its funds + its public key root to the dispatcher\n /// @dev Can be called by any wallet as recipients are not parameters\n function withdraw() external {\n dispatcher.dispatch{value: address(this).balance}(publicKeyRoot);\n }\n\n /// @notice Retrieve the assigned public key root\n function getPublicKeyRoot() external view returns (bytes32) {\n return publicKeyRoot;\n }\n\n /// @notice retrieve the assigned withdrawer\n function getWithdrawer() external view returns (address) {\n return dispatcher.getWithdrawer(publicKeyRoot);\n }\n}\n" }, "src/contracts/ExecutionLayerFeeDispatcher.sol": { "content": "//SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.8.10;\n\nimport \"./libs/DispatchersStorageLib.sol\";\nimport \"./interfaces/IStakingContractFeeDetails.sol\";\nimport \"./interfaces/IFeeDispatcher.sol\";\n\n/// @title Execution Layer Fee Recipient\n/// @author Kiln\n/// @notice This contract can be used to receive fees from a validator and split them with a node operator\ncontract ExecutionLayerFeeDispatcher is IFeeDispatcher {\n using DispatchersStorageLib for bytes32;\n\n event Withdrawal(\n address indexed withdrawer,\n address indexed feeRecipient,\n bytes32 pubKeyRoot,\n uint256 rewards,\n uint256 nodeOperatorFee,\n uint256 treasuryFee\n );\n\n error TreasuryReceiveError(bytes errorData);\n error FeeRecipientReceiveError(bytes errorData);\n error WithdrawerReceiveError(bytes errorData);\n error ZeroBalanceWithdrawal();\n error AlreadyInitialized();\n error InvalidCall();\n\n bytes32 internal constant STAKING_CONTRACT_ADDRESS_SLOT =\n keccak256(\"ExecutionLayerFeeRecipient.stakingContractAddress\");\n uint256 internal constant BASIS_POINTS = 10_000;\n bytes32 internal constant VERSION_SLOT = keccak256(\"ExecutionLayerFeeRecipient.version\");\n\n /// @notice Ensures an initialisation call has been called only once per _version value\n /// @param _version The current initialisation value\n modifier init(uint256 _version) {\n if (_version != VERSION_SLOT.getUint256() + 1) {\n revert AlreadyInitialized();\n }\n\n VERSION_SLOT.setUint256(_version);\n\n _;\n }\n\n /// @notice Constructor method allowing us to prevent calls to initCLFR by setting the appropriate version\n constructor(uint256 _version) {\n VERSION_SLOT.setUint256(_version);\n }\n\n /// @notice Initialize the contract by storing the staking contract and the public key in storage\n /// @param _stakingContract Address of the Staking Contract\n function initELD(address _stakingContract) external init(1) {\n STAKING_CONTRACT_ADDRESS_SLOT.setAddress(_stakingContract);\n }\n\n /// @notice Performs a withdrawal on this contract's balance\n function dispatch(bytes32 _publicKeyRoot) external payable {\n uint256 balance = address(this).balance;\n if (balance == 0) {\n revert ZeroBalanceWithdrawal();\n }\n IStakingContractFeeDetails stakingContract = IStakingContractFeeDetails(\n STAKING_CONTRACT_ADDRESS_SLOT.getAddress()\n );\n address withdrawer = stakingContract.getWithdrawerFromPublicKeyRoot(_publicKeyRoot);\n address operator = stakingContract.getOperatorFeeRecipient(_publicKeyRoot);\n address treasury = stakingContract.getTreasury();\n uint256 globalFee = (balance * stakingContract.getGlobalFee()) / BASIS_POINTS;\n uint256 operatorFee = (globalFee * stakingContract.getOperatorFee()) / BASIS_POINTS;\n\n (bool status, bytes memory data) = withdrawer.call{value: balance - globalFee}(\"\");\n if (status == false) {\n revert WithdrawerReceiveError(data);\n }\n if (globalFee > 0) {\n (status, data) = treasury.call{value: globalFee - operatorFee}(\"\");\n if (status == false) {\n revert FeeRecipientReceiveError(data);\n }\n }\n if (operatorFee > 0) {\n (status, data) = operator.call{value: operatorFee}(\"\");\n if (status == false) {\n revert TreasuryReceiveError(data);\n }\n }\n emit Withdrawal(\n withdrawer,\n operator,\n _publicKeyRoot,\n balance - globalFee,\n operatorFee,\n globalFee - operatorFee\n );\n }\n\n /// @notice Retrieve the staking contract address\n function getStakingContract() external view returns (address) {\n return STAKING_CONTRACT_ADDRESS_SLOT.getAddress();\n }\n\n /// @notice Retrieve the assigned withdrawer for the given public key root\n /// @param _publicKeyRoot Public key root to get the owner\n function getWithdrawer(bytes32 _publicKeyRoot) external view returns (address) {\n IStakingContractFeeDetails stakingContract = IStakingContractFeeDetails(\n STAKING_CONTRACT_ADDRESS_SLOT.getAddress()\n );\n return stakingContract.getWithdrawerFromPublicKeyRoot(_publicKeyRoot);\n }\n\n receive() external payable {\n revert InvalidCall();\n }\n\n fallback() external payable {\n revert InvalidCall();\n }\n}\n" } }, "settings": { "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } }, "metadata": { "useLiteralContent": true } } }}
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// SPDX-License-Identifier: MIT /** TG: https://t.me/Katzportal WEB: https://katzoneth.com TWITTER: https://twitter.com/Katzcommunity */ /** */ // File: @openzeppelin/contracts/utils/math/SafeMath.sol // OpenZeppelin Contracts (last updated v4.9.0) (utils/math/SafeMath.sol) pragma solidity ^0.8.0; // CAUTION // This version of SafeMath should only be used with Solidity 0.8 or later, // because it relies on the compiler's built in overflow checks. /** * @dev Wrappers over Solidity's arithmetic operations. * * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler * now has built in overflow checking. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the subtraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a * b; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } } // File: @openzeppelin/contracts/utils/Context.sol // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // File: @openzeppelin/contracts/access/Ownable.sol // OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol) pragma solidity ^0.8.0; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby disabling any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // File: @openzeppelin/contracts/token/ERC20/IERC20.sol // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 amount) external returns (bool); } // File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); } // File: @openzeppelin/contracts/token/ERC20/ERC20.sol // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * The default value of {decimals} is 18. To change this, you should override * this function so it returns a different value. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the default value returned by this function, unless * it's overridden. * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address to, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _transfer(owner, to, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _approve(owner, spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. * - the caller must have allowance for ``from``'s tokens of at least * `amount`. */ function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, amount); _transfer(from, to, amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, allowance(owner, spender) + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { address owner = _msgSender(); uint256 currentAllowance = allowance(owner, spender); require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(owner, spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `from` to `to`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. */ function _transfer(address from, address to, uint256 amount) internal virtual { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(from, to, amount); uint256 fromBalance = _balances[from]; require(fromBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[from] = fromBalance - amount; // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by // decrementing then incrementing. _balances[to] += amount; } emit Transfer(from, to, amount); _afterTokenTransfer(from, to, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; unchecked { // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above. _balances[account] += amount; } emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; // Overflow not possible: amount <= accountBalance <= totalSupply. _totalSupply -= amount; } emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve(address owner, address spender, uint256 amount) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Updates `owner` s allowance for `spender` based on spent `amount`. * * Does not update the allowance amount in case of infinite allowance. * Revert if not enough allowance is available. * * Might emit an {Approval} event. */ function _spendAllowance(address owner, address spender, uint256 amount) internal virtual { uint256 currentAllowance = allowance(owner, spender); if (currentAllowance != type(uint256).max) { require(currentAllowance >= amount, "ERC20: insufficient allowance"); unchecked { _approve(owner, spender, currentAllowance - amount); } } } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {} } pragma solidity 0.8.19; interface DexFactory { function createPair( address tokenA, address tokenB ) external returns (address pair); } interface DexRouter { function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidityETH( address token, uint256 amountTokenDesired, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline ) external payable returns (uint256 amountToken, uint256 amountETH, uint256 liquidity); function swapExactTokensForETHSupportingFeeOnTransferTokens( uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external; } contract KATZ is ERC20, Ownable { struct Tax { uint256 marketingTax; } uint256 private constant _totalSupply = 420690000000 * 1e18; //Router DexRouter public immutable uniswapRouter; address public immutable pairAddress; //Taxes Tax public buyTaxes = Tax(2); Tax public sellTaxes = Tax(2); Tax public transferTaxes = Tax(40); //Whitelisting from taxes/maxwallet/txlimit/etc mapping(address => bool) private whitelisted; mapping(address => uint256) private _holderLastTransferTimestamp; //Swapping uint256 public swapTokensAtAmount = _totalSupply / 100000; //after 0.04% of total supply, swap them bool public swapAndLiquifyEnabled = true; bool public isSwapping = false; bool public tradingEnabled = false; uint256 public startTradingBlock; bool public transferDelayEnabled = true; bool public launchTax; //Wallets address public marketingWallet = 0x55bA78d47D4195666646ba3D6657e2D9533f12c7 ; uint256 public maxWalletPercentage = 2; //Events event BuyFeesUpdated(uint256 indexed _trFee); event SellFeesUpdated(uint256 indexed _trFee); event marketingWalletChanged(address indexed _trWallet); event SwapThresholdUpdated(uint256 indexed _newThreshold); event InternalSwapStatusUpdated(bool indexed _status); event Whitelist(address indexed _target, bool indexed _status); event MaxWChanged(uint256 percentage); constructor() ERC20("Katz", "KATZ") { uniswapRouter = DexRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); // mainet pairAddress = DexFactory(uniswapRouter.factory()).createPair( address(this), uniswapRouter.WETH() ); whitelisted[msg.sender] = true; whitelisted[address(uniswapRouter)] = true; whitelisted[address(this)] = true; _mint(msg.sender, _totalSupply); launchTax = false; } function setmarketingWallet(address _newmarketing) external onlyOwner { require( _newmarketing != address(0), "can not set marketing to dead wallet" ); marketingWallet = _newmarketing; emit marketingWalletChanged(_newmarketing); } function enableTrading() external onlyOwner { require(!tradingEnabled, "Trading is already enabled"); tradingEnabled = true; launchTax=true; startTradingBlock = block.number; } function setBuyTaxes(uint256 _marketingTax) external onlyOwner { buyTaxes.marketingTax = _marketingTax; require(_marketingTax <= 100, "Can not set buy fees higher than 100%"); emit BuyFeesUpdated(_marketingTax); } function setSellTaxes(uint256 _marketingTax) external onlyOwner { sellTaxes.marketingTax = _marketingTax; require(_marketingTax <= 100, "Can not set buy fees higher than 100%"); emit SellFeesUpdated(_marketingTax); } function setSwapTokensAtAmount(uint256 _newAmount) external onlyOwner { require( _newAmount > 0 && _newAmount <= (_totalSupply * 5) / 1000, "Minimum swap amount must be greater than 0 and less than 0.5% of total supply!" ); swapTokensAtAmount = _newAmount; emit SwapThresholdUpdated(swapTokensAtAmount); } function toggleSwapping() external onlyOwner { swapAndLiquifyEnabled = (swapAndLiquifyEnabled) ? false : true; } function setWhitelistStatus( address _wallet, bool _status ) external onlyOwner { whitelisted[_wallet] = _status; emit Whitelist(_wallet, _status); } function removeLimits() external onlyOwner{ maxWalletPercentage =100; transferDelayEnabled=false; transferTaxes.marketingTax = 0; } function NormalizeTaxes() external onlyOwner{ launchTax=false; } // this function is reponsible for managing tax, if _from or _to is whitelisted, we simply return _amount and skip all the limitations function _takeTax( address _from, address _to, uint256 _amount ) internal returns (uint256) { if (whitelisted[_from] || whitelisted[_to]) { return _amount; } uint256 totalTax = transferTaxes.marketingTax; // Check if within the first 50 blocks if (launchTax) { if (block.number > startTradingBlock + 50) { buyTaxes.marketingTax = 2; sellTaxes.marketingTax = 2; launchTax = false; } else if (block.number <= startTradingBlock + 2) { buyTaxes.marketingTax = 30; sellTaxes.marketingTax = 30; } else if (block.number <= startTradingBlock + 20) { buyTaxes.marketingTax = 25; sellTaxes.marketingTax = 25; } else if (block.number <= startTradingBlock + 50) { buyTaxes.marketingTax = 20; sellTaxes.marketingTax = 20; } } if (_to == pairAddress) { totalTax = sellTaxes.marketingTax; } else if (_from == pairAddress) { totalTax = buyTaxes.marketingTax; } uint256 tax = 0; if (totalTax > 0) { tax = (_amount * totalTax) / 100; super._transfer(_from, address(this), tax); } return (_amount - tax); } function _transfer( address _from, address _to, uint256 _amount ) internal virtual override { if (transferDelayEnabled) { if (_to != address(pairAddress) && _to != address(pairAddress)) { require(_holderLastTransferTimestamp[tx.origin] < block.number, "Only one transfer per block allowed."); _holderLastTransferTimestamp[tx.origin] = block.number; } } require(_from != address(0), "transfer from address zero"); require(_to != address(0), "transfer to address zero"); require(_amount > 0, "Transfer amount must be greater than zero"); // Calculate the maximum wallet amount based on the total supply and the maximum wallet percentage uint256 maxWalletAmount = _totalSupply * maxWalletPercentage / 100; // Check if the transaction is within the maximum wallet limit if (!whitelisted[_from] && !whitelisted[_to] && _to != address(0) && _to != address(this) && _to != pairAddress) { require(balanceOf(_to) + _amount <= maxWalletAmount, "Exceeds maximum wallet amount"); } uint256 toTransfer = _takeTax(_from, _to, _amount); bool canSwap = balanceOf(address(this)) >= swapTokensAtAmount; if (!whitelisted[_from] && !whitelisted[_to]) { require(tradingEnabled, "Trading not active"); if (pairAddress == _to && swapAndLiquifyEnabled && canSwap && !isSwapping) { internalSwap(); } } super._transfer(_from, _to, toTransfer); } function internalSwap() internal { isSwapping = true; uint256 taxAmount = balanceOf(address(this)); if (taxAmount == 0) { return; } swapToETH(balanceOf(address(this))); (bool success, ) = marketingWallet.call{value: address(this).balance}(""); require(success , "Transfer failed."); isSwapping = false; } function swapToETH(uint256 _amount) internal { address[] memory path = new address[](2); path[0] = address(this); path[1] = uniswapRouter.WETH(); _approve(address(this), address(uniswapRouter), _amount); uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens( _amount, 0, path, address(this), block.timestamp ); } function checkWhitelist(address _wallet) external view returns (bool) { return whitelisted[_wallet]; } function setMaxWalletPercentage(uint256 _percentage) external onlyOwner { require(_percentage > 1, "Percentage must be greater than 1%"); require(_percentage <= 100, "Percentage must be less than or equal to 100"); maxWalletPercentage = _percentage; emit MaxWChanged(_percentage); } receive() external payable {} }
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// File: contracts/interfaces/IUniswapV2Pair.sol pragma solidity >=0.5.0; interface IUniswapV2Pair { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external pure returns (string memory); function symbol() external pure returns (string memory); function decimals() external pure returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); function DOMAIN_SEPARATOR() external view returns (bytes32); function PERMIT_TYPEHASH() external pure returns (bytes32); function nonces(address owner) external view returns (uint); function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external; event Mint(address indexed sender, uint amount0, uint amount1); event Burn(address indexed sender, uint amount0, uint amount1, address indexed to); event Swap( address indexed sender, uint amount0In, uint amount1In, uint amount0Out, uint amount1Out, address indexed to ); event Sync(uint112 reserve0, uint112 reserve1); function MINIMUM_LIQUIDITY() external pure returns (uint); function factory() external view returns (address); function token0() external view returns (address); function token1() external view returns (address); function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast); function price0CumulativeLast() external view returns (uint); function price1CumulativeLast() external view returns (uint); function kLast() external view returns (uint); function mint(address to) external returns (uint liquidity); function burn(address to) external returns (uint amount0, uint amount1); function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external; function skim(address to) external; function sync() external; function initialize(address, address) external; } // File: contracts/interfaces/IUniswapV2ERC20.sol pragma solidity >=0.5.0; interface IUniswapV2ERC20 { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external pure returns (string memory); function symbol() external pure returns (string memory); function decimals() external pure returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); function DOMAIN_SEPARATOR() external view returns (bytes32); function PERMIT_TYPEHASH() external pure returns (bytes32); function nonces(address owner) external view returns (uint); function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external; } // File: contracts/libraries/SafeMath.sol pragma solidity =0.5.16; // a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math) library SafeMath { function add(uint x, uint y) internal pure returns (uint z) { require((z = x + y) >= x, 'ds-math-add-overflow'); } function sub(uint x, uint y) internal pure returns (uint z) { require((z = x - y) <= x, 'ds-math-sub-underflow'); } function mul(uint x, uint y) internal pure returns (uint z) { require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow'); } } // File: contracts/UniswapV2ERC20.sol pragma solidity =0.5.16; contract UniswapV2ERC20 is IUniswapV2ERC20 { using SafeMath for uint; string public constant name = 'Uniswap V2'; string public constant symbol = 'UNI-V2'; uint8 public constant decimals = 18; uint public totalSupply; mapping(address => uint) public balanceOf; mapping(address => mapping(address => uint)) public allowance; bytes32 public DOMAIN_SEPARATOR; // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9; mapping(address => uint) public nonces; event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); constructor() public { uint chainId; assembly { chainId := chainid } DOMAIN_SEPARATOR = keccak256( abi.encode( keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'), keccak256(bytes(name)), keccak256(bytes('1')), chainId, address(this) ) ); } function _mint(address to, uint value) internal { totalSupply = totalSupply.add(value); balanceOf[to] = balanceOf[to].add(value); emit Transfer(address(0), to, value); } function _burn(address from, uint value) internal { balanceOf[from] = balanceOf[from].sub(value); totalSupply = totalSupply.sub(value); emit Transfer(from, address(0), value); } function _approve(address owner, address spender, uint value) private { allowance[owner][spender] = value; emit Approval(owner, spender, value); } function _transfer(address from, address to, uint value) private { balanceOf[from] = balanceOf[from].sub(value); balanceOf[to] = balanceOf[to].add(value); emit Transfer(from, to, value); } function approve(address spender, uint value) external returns (bool) { _approve(msg.sender, spender, value); return true; } function transfer(address to, uint value) external returns (bool) { _transfer(msg.sender, to, value); return true; } function transferFrom(address from, address to, uint value) external returns (bool) { if (allowance[from][msg.sender] != uint(-1)) { allowance[from][msg.sender] = allowance[from][msg.sender].sub(value); } _transfer(from, to, value); return true; } function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external { require(deadline >= block.timestamp, 'UniswapV2: EXPIRED'); bytes32 digest = keccak256( abi.encodePacked( '\x19\x01', DOMAIN_SEPARATOR, keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline)) ) ); address recoveredAddress = ecrecover(digest, v, r, s); require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE'); _approve(owner, spender, value); } } // File: contracts/libraries/Math.sol pragma solidity =0.5.16; // a library for performing various math operations library Math { function min(uint x, uint y) internal pure returns (uint z) { z = x < y ? x : y; } // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method) function sqrt(uint y) internal pure returns (uint z) { if (y > 3) { z = y; uint x = y / 2 + 1; while (x < z) { z = x; x = (y / x + x) / 2; } } else if (y != 0) { z = 1; } } } // File: contracts/libraries/UQ112x112.sol pragma solidity =0.5.16; // a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format)) // range: [0, 2**112 - 1] // resolution: 1 / 2**112 library UQ112x112 { uint224 constant Q112 = 2**112; // encode a uint112 as a UQ112x112 function encode(uint112 y) internal pure returns (uint224 z) { z = uint224(y) * Q112; // never overflows } // divide a UQ112x112 by a uint112, returning a UQ112x112 function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) { z = x / uint224(y); } } // File: contracts/interfaces/IERC20.sol pragma solidity >=0.5.0; interface IERC20 { event Approval(address indexed owner, address indexed spender, uint value); event Transfer(address indexed from, address indexed to, uint value); function name() external view returns (string memory); function symbol() external view returns (string memory); function decimals() external view returns (uint8); function totalSupply() external view returns (uint); function balanceOf(address owner) external view returns (uint); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint value) external returns (bool); function transfer(address to, uint value) external returns (bool); function transferFrom(address from, address to, uint value) external returns (bool); } // File: contracts/interfaces/IUniswapV2Factory.sol pragma solidity >=0.5.0; interface IUniswapV2Factory { event PairCreated(address indexed token0, address indexed token1, address pair, uint); function feeTo() external view returns (address); function feeToSetter() external view returns (address); function getPair(address tokenA, address tokenB) external view returns (address pair); function allPairs(uint) external view returns (address pair); function allPairsLength() external view returns (uint); function createPair(address tokenA, address tokenB) external returns (address pair); function setFeeTo(address) external; function setFeeToSetter(address) external; } // File: contracts/interfaces/IUniswapV2Callee.sol pragma solidity >=0.5.0; interface IUniswapV2Callee { function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external; } // File: contracts/UniswapV2Pair.sol pragma solidity =0.5.16; contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 { using SafeMath for uint; using UQ112x112 for uint224; uint public constant MINIMUM_LIQUIDITY = 10**3; bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)'))); address public factory; address public token0; address public token1; uint112 private reserve0; // uses single storage slot, accessible via getReserves uint112 private reserve1; // uses single storage slot, accessible via getReserves uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves uint public price0CumulativeLast; uint public price1CumulativeLast; uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event uint private unlocked = 1; modifier lock() { require(unlocked == 1, 'UniswapV2: LOCKED'); unlocked = 0; _; unlocked = 1; } function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) { _reserve0 = reserve0; _reserve1 = reserve1; _blockTimestampLast = blockTimestampLast; } function _safeTransfer(address token, address to, uint value) private { (bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value)); require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED'); } event Mint(address indexed sender, uint amount0, uint amount1); event Burn(address indexed sender, uint amount0, uint amount1, address indexed to); event Swap( address indexed sender, uint amount0In, uint amount1In, uint amount0Out, uint amount1Out, address indexed to ); event Sync(uint112 reserve0, uint112 reserve1); constructor() public { factory = msg.sender; } // called once by the factory at time of deployment function initialize(address _token0, address _token1) external { require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check token0 = _token0; token1 = _token1; } // update reserves and, on the first call per block, price accumulators function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private { require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW'); uint32 blockTimestamp = uint32(block.timestamp % 2**32); uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) { // * never overflows, and + overflow is desired price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed; price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed; } reserve0 = uint112(balance0); reserve1 = uint112(balance1); blockTimestampLast = blockTimestamp; emit Sync(reserve0, reserve1); } // if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k) function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) { address feeTo = IUniswapV2Factory(factory).feeTo(); feeOn = feeTo != address(0); uint _kLast = kLast; // gas savings if (feeOn) { if (_kLast != 0) { uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1)); uint rootKLast = Math.sqrt(_kLast); if (rootK > rootKLast) { uint numerator = totalSupply.mul(rootK.sub(rootKLast)); uint denominator = rootK.mul(5).add(rootKLast); uint liquidity = numerator / denominator; if (liquidity > 0) _mint(feeTo, liquidity); } } } else if (_kLast != 0) { kLast = 0; } } // this low-level function should be called from a contract which performs important safety checks function mint(address to) external lock returns (uint liquidity) { (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings uint balance0 = IERC20(token0).balanceOf(address(this)); uint balance1 = IERC20(token1).balanceOf(address(this)); uint amount0 = balance0.sub(_reserve0); uint amount1 = balance1.sub(_reserve1); bool feeOn = _mintFee(_reserve0, _reserve1); uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee if (_totalSupply == 0) { liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY); _mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens } else { liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1); } require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED'); _mint(to, liquidity); _update(balance0, balance1, _reserve0, _reserve1); if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date emit Mint(msg.sender, amount0, amount1); } // this low-level function should be called from a contract which performs important safety checks function burn(address to) external lock returns (uint amount0, uint amount1) { (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings address _token0 = token0; // gas savings address _token1 = token1; // gas savings uint balance0 = IERC20(_token0).balanceOf(address(this)); uint balance1 = IERC20(_token1).balanceOf(address(this)); uint liquidity = balanceOf[address(this)]; bool feeOn = _mintFee(_reserve0, _reserve1); uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED'); _burn(address(this), liquidity); _safeTransfer(_token0, to, amount0); _safeTransfer(_token1, to, amount1); balance0 = IERC20(_token0).balanceOf(address(this)); balance1 = IERC20(_token1).balanceOf(address(this)); _update(balance0, balance1, _reserve0, _reserve1); if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date emit Burn(msg.sender, amount0, amount1, to); } // this low-level function should be called from a contract which performs important safety checks function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock { require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT'); (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY'); uint balance0; uint balance1; { // scope for _token{0,1}, avoids stack too deep errors address _token0 = token0; address _token1 = token1; require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO'); if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data); balance0 = IERC20(_token0).balanceOf(address(this)); balance1 = IERC20(_token1).balanceOf(address(this)); } uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0; uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0; require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT'); { // scope for reserve{0,1}Adjusted, avoids stack too deep errors uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3)); uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3)); require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K'); } _update(balance0, balance1, _reserve0, _reserve1); emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to); } // force balances to match reserves function skim(address to) external lock { address _token0 = token0; // gas savings address _token1 = token1; // gas savings _safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0)); _safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1)); } // force reserves to match balances function sync() external lock { _update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1); } }
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{{ "language": "Solidity", "sources": { "src/contracts/ConsensusLayerFeeDispatcher.sol": { "content": "//SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.8.10;\n\nimport \"./libs/DispatchersStorageLib.sol\";\nimport \"./interfaces/IStakingContractFeeDetails.sol\";\nimport \"./interfaces/IFeeDispatcher.sol\";\n\n/// @title Consensus Layer Fee Recipient\n/// @author Kiln\n/// @notice This contract can be used to receive fees from a validator and split them with a node operator\ncontract ConsensusLayerFeeDispatcher is IFeeDispatcher {\n using DispatchersStorageLib for bytes32;\n\n event Withdrawal(\n address indexed withdrawer,\n address indexed feeRecipient,\n bytes32 pubKeyRoot,\n uint256 rewards,\n uint256 nodeOperatorFee,\n uint256 treasuryFee\n );\n\n error TreasuryReceiveError(bytes errorData);\n error FeeRecipientReceiveError(bytes errorData);\n error WithdrawerReceiveError(bytes errorData);\n error ZeroBalanceWithdrawal();\n error AlreadyInitialized();\n error InvalidCall();\n error NotImplemented();\n\n bytes32 internal constant STAKING_CONTRACT_ADDRESS_SLOT =\n keccak256(\"ConsensusLayerFeeRecipient.stakingContractAddress\");\n uint256 internal constant BASIS_POINTS = 10_000;\n bytes32 internal constant VERSION_SLOT = keccak256(\"ConsensusLayerFeeRecipient.version\");\n\n /// @notice Ensures an initialisation call has been called only once per _version value\n /// @param _version The current initialisation value\n modifier init(uint256 _version) {\n if (_version != VERSION_SLOT.getUint256() + 1) {\n revert AlreadyInitialized();\n }\n\n VERSION_SLOT.setUint256(_version);\n\n _;\n }\n\n /// @notice Constructor method allowing us to prevent calls to initCLFR by setting the appropriate version\n constructor(uint256 _version) {\n VERSION_SLOT.setUint256(_version);\n }\n\n /// @notice Initialize the contract by storing the staking contract\n /// @param _stakingContract Address of the Staking Contract\n function initCLD(address _stakingContract) external init(1) {\n STAKING_CONTRACT_ADDRESS_SLOT.setAddress(_stakingContract);\n }\n\n /// @notice Performs a withdrawal on this contract's balance\n function dispatch(bytes32) external payable {\n revert NotImplemented();\n /*\n uint256 balance = address(this).balance; // this has taken into account msg.value\n if (balance == 0) {\n revert ZeroBalanceWithdrawal();\n }\n IStakingContractFeeDetails stakingContract = IStakingContractFeeDetails(\n STAKING_CONTRACT_ADDRESS_SLOT.getAddress()\n );\n address withdrawer = stakingContract.getWithdrawerFromPublicKeyRoot(_publicKeyRoot);\n address operator = stakingContract.getOperatorFeeRecipient(_publicKeyRoot);\n address treasury = stakingContract.getTreasury();\n uint256 globalFee;\n\n if (balance >= 32 ether) {\n // withdrawing a healthy & exited validator\n globalFee = ((balance - 32 ether) * stakingContract.getGlobalFee()) / BASIS_POINTS;\n } else if (balance <= 16 ether) {\n // withdrawing from what looks like skimming\n globalFee = (balance * stakingContract.getGlobalFee()) / BASIS_POINTS;\n }\n\n uint256 operatorFee = (globalFee * stakingContract.getOperatorFee()) / BASIS_POINTS;\n\n (bool status, bytes memory data) = withdrawer.call{value: balance - globalFee}(\"\");\n if (status == false) {\n revert WithdrawerReceiveError(data);\n }\n if (globalFee > 0) {\n (status, data) = treasury.call{value: globalFee - operatorFee}(\"\");\n if (status == false) {\n revert FeeRecipientReceiveError(data);\n }\n }\n if (operatorFee > 0) {\n (status, data) = operator.call{value: operatorFee}(\"\");\n if (status == false) {\n revert TreasuryReceiveError(data);\n }\n }\n emit Withdrawal(withdrawer, operator, balance - globalFee, operatorFee, globalFee - operatorFee);\n */\n }\n\n /// @notice Retrieve the staking contract address\n function getStakingContract() external view returns (address) {\n return STAKING_CONTRACT_ADDRESS_SLOT.getAddress();\n }\n\n /// @notice Retrieve the assigned withdrawer for the given public key root\n /// @param _publicKeyRoot Public key root to get the owner\n function getWithdrawer(bytes32 _publicKeyRoot) external view returns (address) {\n IStakingContractFeeDetails stakingContract = IStakingContractFeeDetails(\n STAKING_CONTRACT_ADDRESS_SLOT.getAddress()\n );\n return stakingContract.getWithdrawerFromPublicKeyRoot(_publicKeyRoot);\n }\n\n receive() external payable {\n revert InvalidCall();\n }\n\n fallback() external payable {\n revert InvalidCall();\n }\n}\n" }, "src/contracts/libs/DispatchersStorageLib.sol": { "content": "//SPDX-License-Identifier: MIT\npragma solidity >=0.8.10;\n\nlibrary DispatchersStorageLib {\n function getUint256(bytes32 position) internal view returns (uint256 data) {\n assembly {\n data := sload(position)\n }\n }\n\n function setUint256(bytes32 position, uint256 data) internal {\n assembly {\n sstore(position, data)\n }\n }\n\n function getAddress(bytes32 position) internal view returns (address data) {\n assembly {\n data := sload(position)\n }\n }\n\n function setAddress(bytes32 position, address data) internal {\n assembly {\n sstore(position, data)\n }\n }\n}\n" }, "src/contracts/interfaces/IStakingContractFeeDetails.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.10;\n\ninterface IStakingContractFeeDetails {\n function getWithdrawerFromPublicKeyRoot(bytes32 _publicKeyRoot) external view returns (address);\n\n function getTreasury() external view returns (address);\n\n function getOperatorFeeRecipient(bytes32 pubKeyRoot) external view returns (address);\n\n function getGlobalFee() external view returns (uint256);\n\n function getOperatorFee() external view returns (uint256);\n}\n" }, "src/contracts/interfaces/IFeeDispatcher.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.10;\n\ninterface IFeeDispatcher {\n function dispatch(bytes32 _publicKeyRoot) external payable;\n\n function getWithdrawer(bytes32 _publicKeyRoot) external view returns (address);\n}\n" }, "src/contracts/FeeRecipient.sol": { "content": "//SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.8.10;\n\nimport \"./interfaces/IFeeDispatcher.sol\";\n\ncontract FeeRecipient {\n /// @notice Constructor replay prevention\n bool internal initialized;\n /// @notice Address where funds are sent to be dispatched\n IFeeDispatcher internal dispatcher;\n /// @notice Public Key root assigned to this receiver\n bytes32 internal publicKeyRoot;\n\n error AlreadyInitialized();\n\n /// @notice Initializes the receiver\n /// @param _dispatcher Address that will handle the fee dispatching\n /// @param _publicKeyRoot Public Key root assigned to this receiver\n function init(address _dispatcher, bytes32 _publicKeyRoot) external {\n if (initialized) {\n revert AlreadyInitialized();\n }\n initialized = true;\n dispatcher = IFeeDispatcher(_dispatcher);\n publicKeyRoot = _publicKeyRoot;\n }\n\n /// @notice Empty calldata fallback\n receive() external payable {}\n\n /// @notice Non-empty calldata fallback\n fallback() external payable {}\n\n /// @notice Triggers a withdrawal by sending its funds + its public key root to the dispatcher\n /// @dev Can be called by any wallet as recipients are not parameters\n function withdraw() external {\n dispatcher.dispatch{value: address(this).balance}(publicKeyRoot);\n }\n\n /// @notice Retrieve the assigned public key root\n function getPublicKeyRoot() external view returns (bytes32) {\n return publicKeyRoot;\n }\n\n /// @notice retrieve the assigned withdrawer\n function getWithdrawer() external view returns (address) {\n return dispatcher.getWithdrawer(publicKeyRoot);\n }\n}\n" }, "src/contracts/ExecutionLayerFeeDispatcher.sol": { "content": "//SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.8.10;\n\nimport \"./libs/DispatchersStorageLib.sol\";\nimport \"./interfaces/IStakingContractFeeDetails.sol\";\nimport \"./interfaces/IFeeDispatcher.sol\";\n\n/// @title Execution Layer Fee Recipient\n/// @author Kiln\n/// @notice This contract can be used to receive fees from a validator and split them with a node operator\ncontract ExecutionLayerFeeDispatcher is IFeeDispatcher {\n using DispatchersStorageLib for bytes32;\n\n event Withdrawal(\n address indexed withdrawer,\n address indexed feeRecipient,\n bytes32 pubKeyRoot,\n uint256 rewards,\n uint256 nodeOperatorFee,\n uint256 treasuryFee\n );\n\n error TreasuryReceiveError(bytes errorData);\n error FeeRecipientReceiveError(bytes errorData);\n error WithdrawerReceiveError(bytes errorData);\n error ZeroBalanceWithdrawal();\n error AlreadyInitialized();\n error InvalidCall();\n\n bytes32 internal constant STAKING_CONTRACT_ADDRESS_SLOT =\n keccak256(\"ExecutionLayerFeeRecipient.stakingContractAddress\");\n uint256 internal constant BASIS_POINTS = 10_000;\n bytes32 internal constant VERSION_SLOT = keccak256(\"ExecutionLayerFeeRecipient.version\");\n\n /// @notice Ensures an initialisation call has been called only once per _version value\n /// @param _version The current initialisation value\n modifier init(uint256 _version) {\n if (_version != VERSION_SLOT.getUint256() + 1) {\n revert AlreadyInitialized();\n }\n\n VERSION_SLOT.setUint256(_version);\n\n _;\n }\n\n /// @notice Constructor method allowing us to prevent calls to initCLFR by setting the appropriate version\n constructor(uint256 _version) {\n VERSION_SLOT.setUint256(_version);\n }\n\n /// @notice Initialize the contract by storing the staking contract and the public key in storage\n /// @param _stakingContract Address of the Staking Contract\n function initELD(address _stakingContract) external init(1) {\n STAKING_CONTRACT_ADDRESS_SLOT.setAddress(_stakingContract);\n }\n\n /// @notice Performs a withdrawal on this contract's balance\n function dispatch(bytes32 _publicKeyRoot) external payable {\n uint256 balance = address(this).balance;\n if (balance == 0) {\n revert ZeroBalanceWithdrawal();\n }\n IStakingContractFeeDetails stakingContract = IStakingContractFeeDetails(\n STAKING_CONTRACT_ADDRESS_SLOT.getAddress()\n );\n address withdrawer = stakingContract.getWithdrawerFromPublicKeyRoot(_publicKeyRoot);\n address operator = stakingContract.getOperatorFeeRecipient(_publicKeyRoot);\n address treasury = stakingContract.getTreasury();\n uint256 globalFee = (balance * stakingContract.getGlobalFee()) / BASIS_POINTS;\n uint256 operatorFee = (globalFee * stakingContract.getOperatorFee()) / BASIS_POINTS;\n\n (bool status, bytes memory data) = withdrawer.call{value: balance - globalFee}(\"\");\n if (status == false) {\n revert WithdrawerReceiveError(data);\n }\n if (globalFee > 0) {\n (status, data) = treasury.call{value: globalFee - operatorFee}(\"\");\n if (status == false) {\n revert FeeRecipientReceiveError(data);\n }\n }\n if (operatorFee > 0) {\n (status, data) = operator.call{value: operatorFee}(\"\");\n if (status == false) {\n revert TreasuryReceiveError(data);\n }\n }\n emit Withdrawal(\n withdrawer,\n operator,\n _publicKeyRoot,\n balance - globalFee,\n operatorFee,\n globalFee - operatorFee\n );\n }\n\n /// @notice Retrieve the staking contract address\n function getStakingContract() external view returns (address) {\n return STAKING_CONTRACT_ADDRESS_SLOT.getAddress();\n }\n\n /// @notice Retrieve the assigned withdrawer for the given public key root\n /// @param _publicKeyRoot Public key root to get the owner\n function getWithdrawer(bytes32 _publicKeyRoot) external view returns (address) {\n IStakingContractFeeDetails stakingContract = IStakingContractFeeDetails(\n STAKING_CONTRACT_ADDRESS_SLOT.getAddress()\n );\n return stakingContract.getWithdrawerFromPublicKeyRoot(_publicKeyRoot);\n }\n\n receive() external payable {\n revert InvalidCall();\n }\n\n fallback() external payable {\n revert InvalidCall();\n }\n}\n" } }, "settings": { "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } }, "metadata": { "useLiteralContent": true } } }}
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// SPDX-License-Identifier: LGPL-3.0-only pragma solidity >=0.7.0 <0.9.0; /// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain /// @author Richard Meissner - <richard@gnosis.io> interface IProxy { function masterCopy() external view returns (address); } /// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract. /// @author Stefan George - <stefan@gnosis.io> /// @author Richard Meissner - <richard@gnosis.io> contract GnosisSafeProxy { // singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated. // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt` address internal singleton; /// @dev Constructor function sets address of singleton contract. /// @param _singleton Singleton address. constructor(address _singleton) { require(_singleton != address(0), "Invalid singleton address provided"); singleton = _singleton; } /// @dev Fallback function forwards all transactions and returns all received return data. fallback() external payable { // solhint-disable-next-line no-inline-assembly assembly { let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff) // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) { mstore(0, _singleton) return(0, 0x20) } calldatacopy(0, 0, calldatasize()) let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0) returndatacopy(0, 0, returndatasize()) if eq(success, 0) { revert(0, returndatasize()) } return(0, returndatasize()) } } } /// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @author Stefan George - <stefan@gnosis.pm> contract GnosisSafeProxyFactory { event ProxyCreation(GnosisSafeProxy proxy, address singleton); /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param singleton Address of singleton contract. /// @param data Payload for message call sent to new proxy contract. function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) { proxy = new GnosisSafeProxy(singleton); if (data.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, singleton); } /// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed. function proxyRuntimeCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).runtimeCode; } /// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address. function proxyCreationCode() public pure returns (bytes memory) { return type(GnosisSafeProxy).creationCode; } /// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer. /// This method is only meant as an utility to be called from other methods /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function deployProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) internal returns (GnosisSafeProxy proxy) { // If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce)); bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton))); // solhint-disable-next-line no-inline-assembly assembly { proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt) } require(address(proxy) != address(0), "Create2 call failed"); } /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function createProxyWithNonce( address _singleton, bytes memory initializer, uint256 saltNonce ) public returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); if (initializer.length > 0) // solhint-disable-next-line no-inline-assembly assembly { if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) { revert(0, 0) } } emit ProxyCreation(proxy, _singleton); } /// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. /// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized. function createProxyWithCallback( address _singleton, bytes memory initializer, uint256 saltNonce, IProxyCreationCallback callback ) public returns (GnosisSafeProxy proxy) { uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback))); proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback); if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce); } /// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce` /// This method is only meant for address calculation purpose when you use an initializer that would revert, /// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory. /// @param _singleton Address of singleton contract. /// @param initializer Payload for message call sent to new proxy contract. /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract. function calculateCreateProxyWithNonceAddress( address _singleton, bytes calldata initializer, uint256 saltNonce ) external returns (GnosisSafeProxy proxy) { proxy = deployProxyWithNonce(_singleton, initializer, saltNonce); revert(string(abi.encodePacked(proxy))); } } interface IProxyCreationCallback { function proxyCreated( GnosisSafeProxy proxy, address _singleton, bytes calldata initializer, uint256 saltNonce ) external; }
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// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol) pragma solidity ^0.8.0; /** * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified * proxy whose upgrades are fully controlled by the current implementation. */ interface IERC1822Proxiable { /** * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation * address. * * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this * function revert if invoked through a proxy. */ function proxiableUUID() external view returns (bytes32); } // OpenZeppelin Contracts (last updated v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol) pragma solidity ^0.8.2; // import "../beacon/IBeacon.sol"; // import "../../interfaces/draft-IERC1822.sol"; // import "../../utils/Address.sol"; // import "../../utils/StorageSlot.sol"; /** * @dev This abstract contract provides getters and event emitting update functions for * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots. * * _Available since v4.1._ */ abstract contract ERC1967Upgrade { // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1 bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143; /** * @dev Storage slot with the address of the current implementation. * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; /** * @dev Emitted when the implementation is upgraded. */ event Upgraded(address indexed implementation); /** * @dev Returns the current implementation address. */ function _getImplementation() internal view returns (address) { return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; } /** * @dev Stores a new address in the EIP1967 implementation slot. */ function _setImplementation(address newImplementation) private { require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract"); StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; } /** * @dev Perform implementation upgrade * * Emits an {Upgraded} event. */ function _upgradeTo(address newImplementation) internal { _setImplementation(newImplementation); emit Upgraded(newImplementation); } /** * @dev Perform implementation upgrade with additional setup call. * * Emits an {Upgraded} event. */ function _upgradeToAndCall(address newImplementation, bytes memory data, bool forceCall) internal { _upgradeTo(newImplementation); if (data.length > 0 || forceCall) { Address.functionDelegateCall(newImplementation, data); } } /** * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call. * * Emits an {Upgraded} event. */ function _upgradeToAndCallUUPS(address newImplementation, bytes memory data, bool forceCall) internal { // Upgrades from old implementations will perform a rollback test. This test requires the new // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing // this special case will break upgrade paths from old UUPS implementation to new ones. if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) { _setImplementation(newImplementation); } else { try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) { require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID"); } catch { revert("ERC1967Upgrade: new implementation is not UUPS"); } _upgradeToAndCall(newImplementation, data, forceCall); } } /** * @dev Storage slot with the admin of the contract. * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103; /** * @dev Emitted when the admin account has changed. */ event AdminChanged(address previousAdmin, address newAdmin); /** * @dev Returns the current admin. */ function _getAdmin() internal view returns (address) { return StorageSlot.getAddressSlot(_ADMIN_SLOT).value; } /** * @dev Stores a new address in the EIP1967 admin slot. */ function _setAdmin(address newAdmin) private { require(newAdmin != address(0), "ERC1967: new admin is the zero address"); StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin; } /** * @dev Changes the admin of the proxy. * * Emits an {AdminChanged} event. */ function _changeAdmin(address newAdmin) internal { emit AdminChanged(_getAdmin(), newAdmin); _setAdmin(newAdmin); } /** * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy. * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor. */ bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50; /** * @dev Emitted when the beacon is upgraded. */ event BeaconUpgraded(address indexed beacon); /** * @dev Returns the current beacon. */ function _getBeacon() internal view returns (address) { return StorageSlot.getAddressSlot(_BEACON_SLOT).value; } /** * @dev Stores a new beacon in the EIP1967 beacon slot. */ function _setBeacon(address newBeacon) private { require(Address.isContract(newBeacon), "ERC1967: new beacon is not a contract"); require( Address.isContract(IBeacon(newBeacon).implementation()), "ERC1967: beacon implementation is not a contract" ); StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon; } /** * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that). * * Emits a {BeaconUpgraded} event. */ function _upgradeBeaconToAndCall(address newBeacon, bytes memory data, bool forceCall) internal { _setBeacon(newBeacon); emit BeaconUpgraded(newBeacon); if (data.length > 0 || forceCall) { Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data); } } } // OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol) pragma solidity ^0.8.0; /** * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to * be specified by overriding the virtual {_implementation} function. * * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a * different contract through the {_delegate} function. * * The success and return data of the delegated call will be returned back to the caller of the proxy. */ abstract contract Proxy { /** * @dev Delegates the current call to `implementation`. * * This function does not return to its internal call site, it will return directly to the external caller. */ function _delegate(address implementation) internal virtual { assembly { // Copy msg.data. We take full control of memory in this inline assembly // block because it will not return to Solidity code. We overwrite the // Solidity scratch pad at memory position 0. calldatacopy(0, 0, calldatasize()) // Call the implementation. // out and outsize are 0 because we don't know the size yet. let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0) // Copy the returned data. returndatacopy(0, 0, returndatasize()) switch result // delegatecall returns 0 on error. case 0 { revert(0, returndatasize()) } default { return(0, returndatasize()) } } } /** * @dev This is a virtual function that should be overridden so it returns the address to which the fallback function * and {_fallback} should delegate. */ function _implementation() internal view virtual returns (address); /** * @dev Delegates the current call to the address returned by `_implementation()`. * * This function does not return to its internal call site, it will return directly to the external caller. */ function _fallback() internal virtual { _beforeFallback(); _delegate(_implementation()); } /** * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other * function in the contract matches the call data. */ fallback() external payable virtual { _fallback(); } /** * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data * is empty. */ receive() external payable virtual { _fallback(); } /** * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback` * call, or as part of the Solidity `fallback` or `receive` functions. * * If overridden should call `super._beforeFallback()`. */ function _beforeFallback() internal virtual {} } // OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol) pragma solidity ^0.8.0; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeacon { /** * @dev Must return an address that can be used as a delegate call target. * * {BeaconProxy} will check that this address is a contract. */ function implementation() external view returns (address); } // OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } // OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol) // This file was procedurally generated from scripts/generate/templates/StorageSlot.js. pragma solidity ^0.8.0; /** * @dev Library for reading and writing primitive types to specific storage slots. * * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts. * This library helps with reading and writing to such slots without the need for inline assembly. * * The functions in this library return Slot structs that contain a `value` member that can be used to read or write. * * Example usage to set ERC1967 implementation slot: * ```solidity * contract ERC1967 { * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; * * function _getImplementation() internal view returns (address) { * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; * } * * function _setImplementation(address newImplementation) internal { * require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract"); * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; * } * } * ``` * * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._ * _Available since v4.9 for `string`, `bytes`._ */ library StorageSlot { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 value; } struct StringSlot { string value; } struct BytesSlot { bytes value; } /** * @dev Returns an `AddressSlot` with member `value` located at `slot`. */ function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` with member `value` located at `slot`. */ function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` representation of the string storage pointer `store`. */ function getStringSlot(string storage store) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } /** * @dev Returns an `BytesSlot` with member `value` located at `slot`. */ function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`. */ function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } } // OpenZeppelin Contracts (last updated v4.7.0) (proxy/beacon/BeaconProxy.sol) pragma solidity ^0.8.0; // import "./IBeacon.sol"; // import "../Proxy.sol"; // import "../ERC1967/ERC1967Upgrade.sol"; /** * @dev This contract implements a proxy that gets the implementation address for each call from an {UpgradeableBeacon}. * * The beacon address is stored in storage slot `uint256(keccak256('eip1967.proxy.beacon')) - 1`, so that it doesn't * conflict with the storage layout of the implementation behind the proxy. * * _Available since v3.4._ */ contract BeaconProxy is Proxy, ERC1967Upgrade { /** * @dev Initializes the proxy with `beacon`. * * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. This * will typically be an encoded function call, and allows initializing the storage of the proxy like a Solidity * constructor. * * Requirements: * * - `beacon` must be a contract with the interface {IBeacon}. */ constructor(address beacon, bytes memory data) payable { _upgradeBeaconToAndCall(beacon, data, false); } /** * @dev Returns the current beacon address. */ function _beacon() internal view virtual returns (address) { return _getBeacon(); } /** * @dev Returns the current implementation address of the associated beacon. */ function _implementation() internal view virtual override returns (address) { return IBeacon(_getBeacon()).implementation(); } /** * @dev Changes the proxy to use a new beacon. Deprecated: see {_upgradeBeaconToAndCall}. * * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. * * Requirements: * * - `beacon` must be a contract. * - The implementation returned by `beacon` must be a contract. */ function _setBeacon(address beacon, bytes memory data) internal virtual { _upgradeBeaconToAndCall(beacon, data, false); } }
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// File: contracts/lib/InitializableOwnable.sol /* Copyright 2020 DODO ZOO. SPDX-License-Identifier: Apache-2.0 */ pragma solidity 0.6.9; pragma experimental ABIEncoderV2; /** * @title Ownable * @author DODO Breeder * * @notice Ownership related functions */ contract InitializableOwnable { address public _OWNER_; address public _NEW_OWNER_; bool internal _INITIALIZED_; // ============ Events ============ event OwnershipTransferPrepared(address indexed previousOwner, address indexed newOwner); event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); // ============ Modifiers ============ modifier notInitialized() { require(!_INITIALIZED_, "DODO_INITIALIZED"); _; } modifier onlyOwner() { require(msg.sender == _OWNER_, "NOT_OWNER"); _; } // ============ Functions ============ function initOwner(address newOwner) public notInitialized { _INITIALIZED_ = true; _OWNER_ = newOwner; } function transferOwnership(address newOwner) public onlyOwner { emit OwnershipTransferPrepared(_OWNER_, newOwner); _NEW_OWNER_ = newOwner; } function claimOwnership() public { require(msg.sender == _NEW_OWNER_, "INVALID_CLAIM"); emit OwnershipTransferred(_OWNER_, _NEW_OWNER_); _OWNER_ = _NEW_OWNER_; _NEW_OWNER_ = address(0); } } // File: contracts/lib/FeeRateModel.sol interface IFeeRateImpl { function getFeeRate(address pool, address trader) external view returns (uint256); } interface IFeeRateModel { function getFeeRate(address trader) external view returns (uint256); } contract FeeRateModel is InitializableOwnable { address public feeRateImpl; function setFeeProxy(address _feeRateImpl) public onlyOwner { feeRateImpl = _feeRateImpl; } function getFeeRate(address trader) external view returns (uint256) { if(feeRateImpl == address(0)) return 0; return IFeeRateImpl(feeRateImpl).getFeeRate(msg.sender,trader); } } // File: contracts/intf/IERC20.sol /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); function decimals() external view returns (uint8); function name() external view returns (string memory); function symbol() external view returns (string memory); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); } // File: contracts/lib/SafeMath.sol /** * @title SafeMath * @author DODO Breeder * * @notice Math operations with safety checks that revert on error */ library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "MUL_ERROR"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "DIVIDING_ERROR"); return a / b; } function divCeil(uint256 a, uint256 b) internal pure returns (uint256) { uint256 quotient = div(a, b); uint256 remainder = a - quotient * b; if (remainder > 0) { return quotient + 1; } else { return quotient; } } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SUB_ERROR"); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "ADD_ERROR"); return c; } function sqrt(uint256 x) internal pure returns (uint256 y) { uint256 z = x / 2 + 1; y = x; while (z < y) { y = z; z = (x / z + z) / 2; } } } // File: contracts/lib/DecimalMath.sol /** * @title DecimalMath * @author DODO Breeder * * @notice Functions for fixed point number with 18 decimals */ library DecimalMath { using SafeMath for uint256; uint256 internal constant ONE = 10**18; uint256 internal constant ONE2 = 10**36; function mulFloor(uint256 target, uint256 d) internal pure returns (uint256) { return target.mul(d) / (10**18); } function mulCeil(uint256 target, uint256 d) internal pure returns (uint256) { return target.mul(d).divCeil(10**18); } function divFloor(uint256 target, uint256 d) internal pure returns (uint256) { return target.mul(10**18).div(d); } function divCeil(uint256 target, uint256 d) internal pure returns (uint256) { return target.mul(10**18).divCeil(d); } function reciprocalFloor(uint256 target) internal pure returns (uint256) { return uint256(10**36).div(target); } function reciprocalCeil(uint256 target) internal pure returns (uint256) { return uint256(10**36).divCeil(target); } } // File: contracts/lib/DODOMath.sol /** * @title DODOMath * @author DODO Breeder * * @notice Functions for complex calculating. Including ONE Integration and TWO Quadratic solutions */ library DODOMath { using SafeMath for uint256; /* Integrate dodo curve from V1 to V2 require V0>=V1>=V2>0 res = (1-k)i(V1-V2)+ikV0*V0(1/V2-1/V1) let V1-V2=delta res = i*delta*(1-k+k(V0^2/V1/V2)) i is the price of V-res trading pair support k=1 & k=0 case [round down] */ function _GeneralIntegrate( uint256 V0, uint256 V1, uint256 V2, uint256 i, uint256 k ) internal pure returns (uint256) { require(V0 > 0, "TARGET_IS_ZERO"); uint256 fairAmount = i.mul(V1.sub(V2)); // i*delta if (k == 0) { return fairAmount.div(DecimalMath.ONE); } uint256 V0V0V1V2 = DecimalMath.divFloor(V0.mul(V0).div(V1), V2); uint256 penalty = DecimalMath.mulFloor(k, V0V0V1V2); // k(V0^2/V1/V2) return DecimalMath.ONE.sub(k).add(penalty).mul(fairAmount).div(DecimalMath.ONE2); } /* Follow the integration function above i*deltaB = (Q2-Q1)*(1-k+kQ0^2/Q1/Q2) Assume Q2=Q0, Given Q1 and deltaB, solve Q0 i is the price of delta-V trading pair give out target of V support k=1 & k=0 case [round down] */ function _SolveQuadraticFunctionForTarget( uint256 V1, uint256 delta, uint256 i, uint256 k ) internal pure returns (uint256) { if (V1 == 0) { return 0; } if (k == 0) { return V1.add(DecimalMath.mulFloor(i, delta)); } // V0 = V1*(1+(sqrt-1)/2k) // sqrt = √(1+4kidelta/V1) // premium = 1+(sqrt-1)/2k // uint256 sqrt = (4 * k).mul(i).mul(delta).div(V1).add(DecimalMath.ONE2).sqrt(); uint256 sqrt; uint256 ki = (4 * k).mul(i); if (ki == 0) { sqrt = DecimalMath.ONE; } else if ((ki * delta) / ki == delta) { sqrt = (ki * delta).div(V1).add(DecimalMath.ONE2).sqrt(); } else { sqrt = ki.div(V1).mul(delta).add(DecimalMath.ONE2).sqrt(); } uint256 premium = DecimalMath.divFloor(sqrt.sub(DecimalMath.ONE), k * 2).add(DecimalMath.ONE); // V0 is greater than or equal to V1 according to the solution return DecimalMath.mulFloor(V1, premium); } /* Follow the integration expression above, we have: i*deltaB = (Q2-Q1)*(1-k+kQ0^2/Q1/Q2) Given Q1 and deltaB, solve Q2 This is a quadratic function and the standard version is aQ2^2 + bQ2 + c = 0, where a=1-k -b=(1-k)Q1-kQ0^2/Q1+i*deltaB c=-kQ0^2 and Q2=(-b+sqrt(b^2+4(1-k)kQ0^2))/2(1-k) note: another root is negative, abondan if deltaBSig=true, then Q2>Q1, user sell Q and receive B if deltaBSig=false, then Q2<Q1, user sell B and receive Q return |Q1-Q2| as we only support sell amount as delta, the deltaB is always negative the input ideltaB is actually -ideltaB in the equation i is the price of delta-V trading pair support k=1 & k=0 case [round down] */ function _SolveQuadraticFunctionForTrade( uint256 V0, uint256 V1, uint256 delta, uint256 i, uint256 k ) internal pure returns (uint256) { require(V0 > 0, "TARGET_IS_ZERO"); if (delta == 0) { return 0; } if (k == 0) { return DecimalMath.mulFloor(i, delta) > V1 ? V1 : DecimalMath.mulFloor(i, delta); } if (k == DecimalMath.ONE) { // if k==1 // Q2=Q1/(1+ideltaBQ1/Q0/Q0) // temp = ideltaBQ1/Q0/Q0 // Q2 = Q1/(1+temp) // Q1-Q2 = Q1*(1-1/(1+temp)) = Q1*(temp/(1+temp)) // uint256 temp = i.mul(delta).mul(V1).div(V0.mul(V0)); uint256 temp; uint256 idelta = i.mul(delta); if (idelta == 0) { temp = 0; } else if ((idelta * V1) / idelta == V1) { temp = (idelta * V1).div(V0.mul(V0)); } else { temp = delta.mul(V1).div(V0).mul(i).div(V0); } return V1.mul(temp).div(temp.add(DecimalMath.ONE)); } // calculate -b value and sig // b = kQ0^2/Q1-i*deltaB-(1-k)Q1 // part1 = (1-k)Q1 >=0 // part2 = kQ0^2/Q1-i*deltaB >=0 // bAbs = abs(part1-part2) // if part1>part2 => b is negative => bSig is false // if part2>part1 => b is positive => bSig is true uint256 part2 = k.mul(V0).div(V1).mul(V0).add(i.mul(delta)); // kQ0^2/Q1-i*deltaB uint256 bAbs = DecimalMath.ONE.sub(k).mul(V1); // (1-k)Q1 bool bSig; if (bAbs >= part2) { bAbs = bAbs - part2; bSig = false; } else { bAbs = part2 - bAbs; bSig = true; } bAbs = bAbs.div(DecimalMath.ONE); // calculate sqrt uint256 squareRoot = DecimalMath.mulFloor( DecimalMath.ONE.sub(k).mul(4), DecimalMath.mulFloor(k, V0).mul(V0) ); // 4(1-k)kQ0^2 squareRoot = bAbs.mul(bAbs).add(squareRoot).sqrt(); // sqrt(b*b+4(1-k)kQ0*Q0) // final res uint256 denominator = DecimalMath.ONE.sub(k).mul(2); // 2(1-k) uint256 numerator; if (bSig) { numerator = squareRoot.sub(bAbs); } else { numerator = bAbs.add(squareRoot); } uint256 V2 = DecimalMath.divCeil(numerator, denominator); if (V2 > V1) { return 0; } else { return V1 - V2; } } } // File: contracts/lib/PMMPricing.sol /** * @title Pricing * @author DODO Breeder * * @notice DODO Pricing model */ library PMMPricing { using SafeMath for uint256; enum RState {ONE, ABOVE_ONE, BELOW_ONE} struct PMMState { uint256 i; uint256 K; uint256 B; uint256 Q; uint256 B0; uint256 Q0; RState R; } // ============ buy & sell ============ function sellBaseToken(PMMState memory state, uint256 payBaseAmount) internal pure returns (uint256 receiveQuoteAmount, RState newR) { if (state.R == RState.ONE) { // case 1: R=1 // R falls below one receiveQuoteAmount = _ROneSellBaseToken(state, payBaseAmount); newR = RState.BELOW_ONE; } else if (state.R == RState.ABOVE_ONE) { uint256 backToOnePayBase = state.B0.sub(state.B); uint256 backToOneReceiveQuote = state.Q.sub(state.Q0); // case 2: R>1 // complex case, R status depends on trading amount if (payBaseAmount < backToOnePayBase) { // case 2.1: R status do not change receiveQuoteAmount = _RAboveSellBaseToken(state, payBaseAmount); newR = RState.ABOVE_ONE; if (receiveQuoteAmount > backToOneReceiveQuote) { // [Important corner case!] may enter this branch when some precision problem happens. And consequently contribute to negative spare quote amount // to make sure spare quote>=0, mannually set receiveQuote=backToOneReceiveQuote receiveQuoteAmount = backToOneReceiveQuote; } } else if (payBaseAmount == backToOnePayBase) { // case 2.2: R status changes to ONE receiveQuoteAmount = backToOneReceiveQuote; newR = RState.ONE; } else { // case 2.3: R status changes to BELOW_ONE receiveQuoteAmount = backToOneReceiveQuote.add( _ROneSellBaseToken(state, payBaseAmount.sub(backToOnePayBase)) ); newR = RState.BELOW_ONE; } } else { // state.R == RState.BELOW_ONE // case 3: R<1 receiveQuoteAmount = _RBelowSellBaseToken(state, payBaseAmount); newR = RState.BELOW_ONE; } } function sellQuoteToken(PMMState memory state, uint256 payQuoteAmount) internal pure returns (uint256 receiveBaseAmount, RState newR) { if (state.R == RState.ONE) { receiveBaseAmount = _ROneSellQuoteToken(state, payQuoteAmount); newR = RState.ABOVE_ONE; } else if (state.R == RState.ABOVE_ONE) { receiveBaseAmount = _RAboveSellQuoteToken(state, payQuoteAmount); newR = RState.ABOVE_ONE; } else { uint256 backToOnePayQuote = state.Q0.sub(state.Q); uint256 backToOneReceiveBase = state.B.sub(state.B0); if (payQuoteAmount < backToOnePayQuote) { receiveBaseAmount = _RBelowSellQuoteToken(state, payQuoteAmount); newR = RState.BELOW_ONE; if (receiveBaseAmount > backToOneReceiveBase) { receiveBaseAmount = backToOneReceiveBase; } } else if (payQuoteAmount == backToOnePayQuote) { receiveBaseAmount = backToOneReceiveBase; newR = RState.ONE; } else { receiveBaseAmount = backToOneReceiveBase.add( _ROneSellQuoteToken(state, payQuoteAmount.sub(backToOnePayQuote)) ); newR = RState.ABOVE_ONE; } } } // ============ R = 1 cases ============ function _ROneSellBaseToken(PMMState memory state, uint256 payBaseAmount) internal pure returns ( uint256 // receiveQuoteToken ) { // in theory Q2 <= targetQuoteTokenAmount // however when amount is close to 0, precision problems may cause Q2 > targetQuoteTokenAmount return DODOMath._SolveQuadraticFunctionForTrade( state.Q0, state.Q0, payBaseAmount, state.i, state.K ); } function _ROneSellQuoteToken(PMMState memory state, uint256 payQuoteAmount) internal pure returns ( uint256 // receiveBaseToken ) { return DODOMath._SolveQuadraticFunctionForTrade( state.B0, state.B0, payQuoteAmount, DecimalMath.reciprocalFloor(state.i), state.K ); } // ============ R < 1 cases ============ function _RBelowSellQuoteToken(PMMState memory state, uint256 payQuoteAmount) internal pure returns ( uint256 // receiveBaseToken ) { return DODOMath._GeneralIntegrate( state.Q0, state.Q.add(payQuoteAmount), state.Q, DecimalMath.reciprocalFloor(state.i), state.K ); } function _RBelowSellBaseToken(PMMState memory state, uint256 payBaseAmount) internal pure returns ( uint256 // receiveQuoteToken ) { return DODOMath._SolveQuadraticFunctionForTrade( state.Q0, state.Q, payBaseAmount, state.i, state.K ); } // ============ R > 1 cases ============ function _RAboveSellBaseToken(PMMState memory state, uint256 payBaseAmount) internal pure returns ( uint256 // receiveQuoteToken ) { return DODOMath._GeneralIntegrate( state.B0, state.B.add(payBaseAmount), state.B, state.i, state.K ); } function _RAboveSellQuoteToken(PMMState memory state, uint256 payQuoteAmount) internal pure returns ( uint256 // receiveBaseToken ) { return DODOMath._SolveQuadraticFunctionForTrade( state.B0, state.B, payQuoteAmount, DecimalMath.reciprocalFloor(state.i), state.K ); } // ============ Helper functions ============ function adjustedTarget(PMMState memory state) internal pure { if (state.R == RState.BELOW_ONE) { state.Q0 = DODOMath._SolveQuadraticFunctionForTarget( state.Q, state.B.sub(state.B0), state.i, state.K ); } else if (state.R == RState.ABOVE_ONE) { state.B0 = DODOMath._SolveQuadraticFunctionForTarget( state.B, state.Q.sub(state.Q0), DecimalMath.reciprocalFloor(state.i), state.K ); } } function getMidPrice(PMMState memory state) internal pure returns (uint256) { if (state.R == RState.BELOW_ONE) { uint256 R = DecimalMath.divFloor(state.Q0.mul(state.Q0).div(state.Q), state.Q); R = DecimalMath.ONE.sub(state.K).add(DecimalMath.mulFloor(state.K, R)); return DecimalMath.divFloor(state.i, R); } else { uint256 R = DecimalMath.divFloor(state.B0.mul(state.B0).div(state.B), state.B); R = DecimalMath.ONE.sub(state.K).add(DecimalMath.mulFloor(state.K, R)); return DecimalMath.mulFloor(state.i, R); } } } // File: contracts/lib/SafeERC20.sol /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for ERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using SafeMath for uint256; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn( token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value) ); } function safeApprove( IERC20 token, address spender, uint256 value ) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' // solhint-disable-next-line max-line-length require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. // A Solidity high level call has three parts: // 1. The target address is checked to verify it contains contract code // 2. The call itself is made, and success asserted // 3. The return value is decoded, which in turn checks the size of the returned data. // solhint-disable-next-line max-line-length // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = address(token).call(data); require(success, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional // solhint-disable-next-line max-line-length require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } } // File: contracts/lib/ReentrancyGuard.sol /** * @title ReentrancyGuard * @author DODO Breeder * * @notice Protect functions from Reentrancy Attack */ contract ReentrancyGuard { // https://solidity.readthedocs.io/en/latest/control-structures.html?highlight=zero-state#scoping-and-declarations // zero-state of _ENTERED_ is false bool private _ENTERED_; modifier preventReentrant() { require(!_ENTERED_, "REENTRANT"); _ENTERED_ = true; _; _ENTERED_ = false; } } // File: contracts/DODOStablePool/impl/DSPStorage.sol contract DSPStorage is ReentrancyGuard { using SafeMath for uint256; bool internal _DSP_INITIALIZED_; bool public _IS_OPEN_TWAP_ = false; // ============ Core Address ============ address public _MAINTAINER_; IERC20 public _BASE_TOKEN_; IERC20 public _QUOTE_TOKEN_; uint112 public _BASE_RESERVE_; uint112 public _QUOTE_RESERVE_; uint32 public _BLOCK_TIMESTAMP_LAST_; uint256 public _BASE_PRICE_CUMULATIVE_LAST_; uint112 public _BASE_TARGET_; uint112 public _QUOTE_TARGET_; uint32 public _RState_; // ============ Shares (ERC20) ============ string public symbol; uint8 public decimals; string public name; uint256 public totalSupply; mapping(address => uint256) internal _SHARES_; mapping(address => mapping(address => uint256)) internal _ALLOWED_; // ================= Permit ====================== bytes32 public DOMAIN_SEPARATOR; // keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9; mapping(address => uint256) public nonces; // ============ Variables for Pricing ============ IFeeRateModel public _MT_FEE_RATE_MODEL_; uint256 public _LP_FEE_RATE_; uint256 public _K_; uint256 public _I_; // ============ Helper Functions ============ function getPMMState() public view returns (PMMPricing.PMMState memory state) { state.i = _I_; state.K = _K_; state.B = _BASE_RESERVE_; state.Q = _QUOTE_RESERVE_; state.B0 = _BASE_TARGET_; // will be calculated in adjustedTarget state.Q0 = _QUOTE_TARGET_; state.R = PMMPricing.RState(_RState_); PMMPricing.adjustedTarget(state); } function getPMMStateForCall() external view returns ( uint256 i, uint256 K, uint256 B, uint256 Q, uint256 B0, uint256 Q0, uint256 R ) { PMMPricing.PMMState memory state = getPMMState(); i = state.i; K = state.K; B = state.B; Q = state.Q; B0 = state.B0; Q0 = state.Q0; R = uint256(state.R); } function getMidPrice() public view returns (uint256 midPrice) { return PMMPricing.getMidPrice(getPMMState()); } } // File: contracts/DODOStablePool/impl/DSPVault.sol contract DSPVault is DSPStorage { using SafeMath for uint256; using SafeERC20 for IERC20; // ============ Events ============ event Transfer(address indexed from, address indexed to, uint256 amount); event Approval(address indexed owner, address indexed spender, uint256 amount); event Mint(address indexed user, uint256 value); event Burn(address indexed user, uint256 value); // ============ View Functions ============ function getVaultReserve() external view returns (uint256 baseReserve, uint256 quoteReserve) { baseReserve = _BASE_RESERVE_; quoteReserve = _QUOTE_RESERVE_; } function getUserFeeRate(address user) external view returns (uint256 lpFeeRate, uint256 mtFeeRate) { lpFeeRate = _LP_FEE_RATE_; mtFeeRate = _MT_FEE_RATE_MODEL_.getFeeRate(user); } // ============ Asset In ============ function getBaseInput() public view returns (uint256 input) { return _BASE_TOKEN_.balanceOf(address(this)).sub(uint256(_BASE_RESERVE_)); } function getQuoteInput() public view returns (uint256 input) { return _QUOTE_TOKEN_.balanceOf(address(this)).sub(uint256(_QUOTE_RESERVE_)); } // ============ TWAP UPDATE =========== function _twapUpdate() internal { uint32 blockTimestamp = uint32(block.timestamp % 2**32); uint32 timeElapsed = blockTimestamp - _BLOCK_TIMESTAMP_LAST_; if (timeElapsed > 0 && _BASE_RESERVE_ != 0 && _QUOTE_RESERVE_ != 0) { _BASE_PRICE_CUMULATIVE_LAST_ += getMidPrice() * timeElapsed; } _BLOCK_TIMESTAMP_LAST_ = blockTimestamp; } // ============ Set States ============ function _setReserve(uint256 baseReserve, uint256 quoteReserve) internal { require(baseReserve <= uint112(-1) && quoteReserve <= uint112(-1), "OVERFLOW"); _BASE_RESERVE_ = uint112(baseReserve); _QUOTE_RESERVE_ = uint112(quoteReserve); if (_IS_OPEN_TWAP_) _twapUpdate(); } function _sync() internal { uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this)); uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this)); require(baseBalance <= uint112(-1) && quoteBalance <= uint112(-1), "OVERFLOW"); if (baseBalance != _BASE_RESERVE_) { _BASE_RESERVE_ = uint112(baseBalance); } if (quoteBalance != _QUOTE_RESERVE_) { _QUOTE_RESERVE_ = uint112(quoteBalance); } if (_IS_OPEN_TWAP_) _twapUpdate(); } function sync() external preventReentrant { _sync(); } function correctRState() public { if (_RState_ == uint32(PMMPricing.RState.BELOW_ONE) && _BASE_RESERVE_<_BASE_TARGET_) { _RState_ = uint32(PMMPricing.RState.ONE); _BASE_TARGET_ = _BASE_RESERVE_; _QUOTE_TARGET_ = _QUOTE_RESERVE_; } if (_RState_ == uint32(PMMPricing.RState.ABOVE_ONE) && _QUOTE_RESERVE_<_QUOTE_TARGET_) { _RState_ = uint32(PMMPricing.RState.ONE); _BASE_TARGET_ = _BASE_RESERVE_; _QUOTE_TARGET_ = _QUOTE_RESERVE_; } } // ============ Asset Out ============ function _transferBaseOut(address to, uint256 amount) internal { if (amount > 0) { _BASE_TOKEN_.safeTransfer(to, amount); } } function _transferQuoteOut(address to, uint256 amount) internal { if (amount > 0) { _QUOTE_TOKEN_.safeTransfer(to, amount); } } // ============ Shares (ERC20) ============ /** * @dev transfer token for a specified address * @param to The address to transfer to. * @param amount The amount to be transferred. */ function transfer(address to, uint256 amount) public returns (bool) { require(amount <= _SHARES_[msg.sender], "BALANCE_NOT_ENOUGH"); _SHARES_[msg.sender] = _SHARES_[msg.sender].sub(amount); _SHARES_[to] = _SHARES_[to].add(amount); emit Transfer(msg.sender, to, amount); return true; } /** * @dev Gets the balance of the specified address. * @param owner The address to query the the balance of. * @return balance An uint256 representing the amount owned by the passed address. */ function balanceOf(address owner) external view returns (uint256 balance) { return _SHARES_[owner]; } /** * @dev Transfer tokens from one address to another * @param from address The address which you want to send tokens from * @param to address The address which you want to transfer to * @param amount uint256 the amount of tokens to be transferred */ function transferFrom( address from, address to, uint256 amount ) public returns (bool) { require(amount <= _SHARES_[from], "BALANCE_NOT_ENOUGH"); require(amount <= _ALLOWED_[from][msg.sender], "ALLOWANCE_NOT_ENOUGH"); _SHARES_[from] = _SHARES_[from].sub(amount); _SHARES_[to] = _SHARES_[to].add(amount); _ALLOWED_[from][msg.sender] = _ALLOWED_[from][msg.sender].sub(amount); emit Transfer(from, to, amount); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * @param spender The address which will spend the funds. * @param amount The amount of tokens to be spent. */ function approve(address spender, uint256 amount) public returns (bool) { _approve(msg.sender, spender, amount); return true; } function _approve( address owner, address spender, uint256 amount ) private { _ALLOWED_[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Function to check the amount of tokens that an owner _ALLOWED_ to a spender. * @param owner address The address which owns the funds. * @param spender address The address which will spend the funds. * @return A uint256 specifying the amount of tokens still available for the spender. */ function allowance(address owner, address spender) public view returns (uint256) { return _ALLOWED_[owner][spender]; } function _mint(address user, uint256 value) internal { require(value > 1000, "MINT_AMOUNT_NOT_ENOUGH"); _SHARES_[user] = _SHARES_[user].add(value); totalSupply = totalSupply.add(value); emit Mint(user, value); emit Transfer(address(0), user, value); } function _burn(address user, uint256 value) internal { _SHARES_[user] = _SHARES_[user].sub(value); totalSupply = totalSupply.sub(value); emit Burn(user, value); emit Transfer(user, address(0), value); } // ============================ Permit ====================================== function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external { require(deadline >= block.timestamp, "DODO_DSP_LP: EXPIRED"); bytes32 digest = keccak256( abi.encodePacked( "\x19\x01", DOMAIN_SEPARATOR, keccak256( abi.encode( PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline ) ) ) ); address recoveredAddress = ecrecover(digest, v, r, s); require( recoveredAddress != address(0) && recoveredAddress == owner, "DODO_DSP_LP: INVALID_SIGNATURE" ); _approve(owner, spender, value); } } // File: contracts/intf/IDODOCallee.sol interface IDODOCallee { function DVMSellShareCall( address sender, uint256 burnShareAmount, uint256 baseAmount, uint256 quoteAmount, bytes calldata data ) external; function DVMFlashLoanCall( address sender, uint256 baseAmount, uint256 quoteAmount, bytes calldata data ) external; function DPPFlashLoanCall( address sender, uint256 baseAmount, uint256 quoteAmount, bytes calldata data ) external; function DSPFlashLoanCall( address sender, uint256 baseAmount, uint256 quoteAmount, bytes calldata data ) external; function CPCancelCall( address sender, uint256 amount, bytes calldata data ) external; function CPClaimBidCall( address sender, uint256 baseAmount, uint256 quoteAmount, bytes calldata data ) external; } // File: contracts/DODOStablePool/impl/DSPTrader.sol contract DSPTrader is DSPVault { using SafeMath for uint256; // ============ Events ============ event DODOSwap( address fromToken, address toToken, uint256 fromAmount, uint256 toAmount, address trader, address receiver ); event DODOFlashLoan(address borrower, address assetTo, uint256 baseAmount, uint256 quoteAmount); event RChange(PMMPricing.RState newRState); // ============ Trade Functions ============ function sellBase(address to) external preventReentrant returns (uint256 receiveQuoteAmount) { uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this)); uint256 baseInput = baseBalance.sub(uint256(_BASE_RESERVE_)); uint256 mtFee; uint256 newBaseTarget; PMMPricing.RState newRState; (receiveQuoteAmount, mtFee, newRState, newBaseTarget) = querySellBase(tx.origin, baseInput); _transferQuoteOut(to, receiveQuoteAmount); _transferQuoteOut(_MAINTAINER_, mtFee); // update TARGET if (_RState_ != uint32(newRState)) { require(newBaseTarget <= uint112(-1), "OVERFLOW"); _BASE_TARGET_ = uint112(newBaseTarget); _RState_ = uint32(newRState); emit RChange(newRState); } _setReserve(baseBalance, _QUOTE_TOKEN_.balanceOf(address(this))); emit DODOSwap( address(_BASE_TOKEN_), address(_QUOTE_TOKEN_), baseInput, receiveQuoteAmount, msg.sender, to ); } function sellQuote(address to) external preventReentrant returns (uint256 receiveBaseAmount) { uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this)); uint256 quoteInput = quoteBalance.sub(uint256(_QUOTE_RESERVE_)); uint256 mtFee; uint256 newQuoteTarget; PMMPricing.RState newRState; (receiveBaseAmount, mtFee, newRState, newQuoteTarget) = querySellQuote( tx.origin, quoteInput ); _transferBaseOut(to, receiveBaseAmount); _transferBaseOut(_MAINTAINER_, mtFee); // update TARGET if (_RState_ != uint32(newRState)) { require(newQuoteTarget <= uint112(-1), "OVERFLOW"); _QUOTE_TARGET_ = uint112(newQuoteTarget); _RState_ = uint32(newRState); emit RChange(newRState); } _setReserve(_BASE_TOKEN_.balanceOf(address(this)), quoteBalance); emit DODOSwap( address(_QUOTE_TOKEN_), address(_BASE_TOKEN_), quoteInput, receiveBaseAmount, msg.sender, to ); } function flashLoan( uint256 baseAmount, uint256 quoteAmount, address assetTo, bytes calldata data ) external preventReentrant { _transferBaseOut(assetTo, baseAmount); _transferQuoteOut(assetTo, quoteAmount); if (data.length > 0) IDODOCallee(assetTo).DSPFlashLoanCall(msg.sender, baseAmount, quoteAmount, data); uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this)); uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this)); // no input -> pure loss require( baseBalance >= _BASE_RESERVE_ || quoteBalance >= _QUOTE_RESERVE_, "FLASH_LOAN_FAILED" ); // sell quote case // quote input + base output if (baseBalance < _BASE_RESERVE_) { uint256 quoteInput = quoteBalance.sub(uint256(_QUOTE_RESERVE_)); ( uint256 receiveBaseAmount, uint256 mtFee, PMMPricing.RState newRState, uint256 newQuoteTarget ) = querySellQuote(tx.origin, quoteInput); // revert if quoteBalance<quoteReserve require( uint256(_BASE_RESERVE_).sub(baseBalance) <= receiveBaseAmount, "FLASH_LOAN_FAILED" ); _transferBaseOut(_MAINTAINER_, mtFee); if (_RState_ != uint32(newRState)) { require(newQuoteTarget <= uint112(-1), "OVERFLOW"); _QUOTE_TARGET_ = uint112(newQuoteTarget); _RState_ = uint32(newRState); emit RChange(newRState); } emit DODOSwap( address(_QUOTE_TOKEN_), address(_BASE_TOKEN_), quoteInput, receiveBaseAmount, msg.sender, assetTo ); } // sell base case // base input + quote output if (quoteBalance < _QUOTE_RESERVE_) { uint256 baseInput = baseBalance.sub(uint256(_BASE_RESERVE_)); ( uint256 receiveQuoteAmount, uint256 mtFee, PMMPricing.RState newRState, uint256 newBaseTarget ) = querySellBase(tx.origin, baseInput); // revert if baseBalance<baseReserve require( uint256(_QUOTE_RESERVE_).sub(quoteBalance) <= receiveQuoteAmount, "FLASH_LOAN_FAILED" ); _transferQuoteOut(_MAINTAINER_, mtFee); if (_RState_ != uint32(newRState)) { require(newBaseTarget <= uint112(-1), "OVERFLOW"); _BASE_TARGET_ = uint112(newBaseTarget); _RState_ = uint32(newRState); emit RChange(newRState); } emit DODOSwap( address(_BASE_TOKEN_), address(_QUOTE_TOKEN_), baseInput, receiveQuoteAmount, msg.sender, assetTo ); } _sync(); emit DODOFlashLoan(msg.sender, assetTo, baseAmount, quoteAmount); } // ============ Query Functions ============ function querySellBase(address trader, uint256 payBaseAmount) public view returns ( uint256 receiveQuoteAmount, uint256 mtFee, PMMPricing.RState newRState, uint256 newBaseTarget ) { PMMPricing.PMMState memory state = getPMMState(); (receiveQuoteAmount, newRState) = PMMPricing.sellBaseToken(state, payBaseAmount); uint256 lpFeeRate = _LP_FEE_RATE_; uint256 mtFeeRate = _MT_FEE_RATE_MODEL_.getFeeRate(trader); mtFee = DecimalMath.mulFloor(receiveQuoteAmount, mtFeeRate); receiveQuoteAmount = receiveQuoteAmount .sub(DecimalMath.mulFloor(receiveQuoteAmount, lpFeeRate)) .sub(mtFee); newBaseTarget = state.B0; } function querySellQuote(address trader, uint256 payQuoteAmount) public view returns ( uint256 receiveBaseAmount, uint256 mtFee, PMMPricing.RState newRState, uint256 newQuoteTarget ) { PMMPricing.PMMState memory state = getPMMState(); (receiveBaseAmount, newRState) = PMMPricing.sellQuoteToken(state, payQuoteAmount); uint256 lpFeeRate = _LP_FEE_RATE_; uint256 mtFeeRate = _MT_FEE_RATE_MODEL_.getFeeRate(trader); mtFee = DecimalMath.mulFloor(receiveBaseAmount, mtFeeRate); receiveBaseAmount = receiveBaseAmount .sub(DecimalMath.mulFloor(receiveBaseAmount, lpFeeRate)) .sub(mtFee); newQuoteTarget = state.Q0; } } // File: contracts/DODOStablePool/impl/DSPFunding.sol contract DSPFunding is DSPVault { // ============ Events ============ event BuyShares(address to, uint256 increaseShares, uint256 totalShares); event SellShares(address payer, address to, uint256 decreaseShares, uint256 totalShares); // ============ Buy & Sell Shares ============ // buy shares [round down] function buyShares(address to) external preventReentrant returns ( uint256 shares, uint256 baseInput, uint256 quoteInput ) { uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this)); uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this)); uint256 baseReserve = _BASE_RESERVE_; uint256 quoteReserve = _QUOTE_RESERVE_; baseInput = baseBalance.sub(baseReserve); quoteInput = quoteBalance.sub(quoteReserve); require(baseInput > 0, "NO_BASE_INPUT"); // Round down when withdrawing. Therefore, never be a situation occuring balance is 0 but totalsupply is not 0 // But May Happen,reserve >0 But totalSupply = 0 if (totalSupply == 0) { // case 1. initial supply shares = quoteBalance < DecimalMath.mulFloor(baseBalance, _I_) ? DecimalMath.divFloor(quoteBalance, _I_) : baseBalance; _BASE_TARGET_ = uint112(shares); _QUOTE_TARGET_ = uint112(DecimalMath.mulFloor(shares, _I_)); } else if (baseReserve > 0 && quoteReserve > 0) { // case 2. normal case uint256 baseInputRatio = DecimalMath.divFloor(baseInput, baseReserve); uint256 quoteInputRatio = DecimalMath.divFloor(quoteInput, quoteReserve); uint256 mintRatio = quoteInputRatio < baseInputRatio ? quoteInputRatio : baseInputRatio; shares = DecimalMath.mulFloor(totalSupply, mintRatio); _BASE_TARGET_ = uint112(uint256(_BASE_TARGET_).add(DecimalMath.mulFloor(uint256(_BASE_TARGET_), mintRatio))); _QUOTE_TARGET_ = uint112(uint256(_QUOTE_TARGET_).add(DecimalMath.mulFloor(uint256(_QUOTE_TARGET_), mintRatio))); } _mint(to, shares); _setReserve(baseBalance, quoteBalance); emit BuyShares(to, shares, _SHARES_[to]); } // sell shares [round down] function sellShares( uint256 shareAmount, address to, uint256 baseMinAmount, uint256 quoteMinAmount, bytes calldata data, uint256 deadline ) external preventReentrant returns (uint256 baseAmount, uint256 quoteAmount) { require(deadline >= block.timestamp, "TIME_EXPIRED"); require(shareAmount <= _SHARES_[msg.sender], "DLP_NOT_ENOUGH"); uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this)); uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this)); uint256 totalShares = totalSupply; baseAmount = baseBalance.mul(shareAmount).div(totalShares); quoteAmount = quoteBalance.mul(shareAmount).div(totalShares); _BASE_TARGET_ = uint112(uint256(_BASE_TARGET_).sub(uint256(_BASE_TARGET_).mul(shareAmount).divCeil(totalShares))); _QUOTE_TARGET_ = uint112(uint256(_QUOTE_TARGET_).sub(uint256(_QUOTE_TARGET_).mul(shareAmount).divCeil(totalShares))); require( baseAmount >= baseMinAmount && quoteAmount >= quoteMinAmount, "WITHDRAW_NOT_ENOUGH" ); _burn(msg.sender, shareAmount); _transferBaseOut(to, baseAmount); _transferQuoteOut(to, quoteAmount); _sync(); if (data.length > 0) { //Same as DVM IDODOCallee(to).DVMSellShareCall( msg.sender, shareAmount, baseAmount, quoteAmount, data ); } emit SellShares(msg.sender, to, shareAmount, _SHARES_[msg.sender]); } } // File: contracts/DODOStablePool/impl/DSP.sol /** * @title DODO StablePool * @author DODO Breeder * * @notice DODOStablePool initialization */ contract DSP is DSPTrader, DSPFunding { function init( address maintainer, address baseTokenAddress, address quoteTokenAddress, uint256 lpFeeRate, address mtFeeRateModel, uint256 i, uint256 k, bool isOpenTWAP ) external { require(!_DSP_INITIALIZED_, "DSP_INITIALIZED"); _DSP_INITIALIZED_ = true; require(baseTokenAddress != quoteTokenAddress, "BASE_QUOTE_CAN_NOT_BE_SAME"); _BASE_TOKEN_ = IERC20(baseTokenAddress); _QUOTE_TOKEN_ = IERC20(quoteTokenAddress); require(i > 0 && i <= 10**36); _I_ = i; require(k <= 10**18); _K_ = k; _LP_FEE_RATE_ = lpFeeRate; _MT_FEE_RATE_MODEL_ = IFeeRateModel(mtFeeRateModel); _MAINTAINER_ = maintainer; _IS_OPEN_TWAP_ = isOpenTWAP; if (isOpenTWAP) _BLOCK_TIMESTAMP_LAST_ = uint32(block.timestamp % 2**32); string memory connect = "_"; string memory suffix = "DLP"; name = string(abi.encodePacked(suffix, connect, addressToShortString(address(this)))); symbol = "DLP"; decimals = _BASE_TOKEN_.decimals(); // ============================== Permit ==================================== uint256 chainId; assembly { chainId := chainid() } DOMAIN_SEPARATOR = keccak256( abi.encode( // keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'), 0x8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f, keccak256(bytes(name)), keccak256(bytes("1")), chainId, address(this) ) ); // ========================================================================== } function addressToShortString(address _addr) public pure returns (string memory) { bytes32 value = bytes32(uint256(_addr)); bytes memory alphabet = "0123456789abcdef"; bytes memory str = new bytes(8); for (uint256 i = 0; i < 4; i++) { str[i * 2] = alphabet[uint8(value[i + 12] >> 4)]; str[1 + i * 2] = alphabet[uint8(value[i + 12] & 0x0f)]; } return string(str); } // ============ Version Control ============ function version() external pure returns (string memory) { return "DSP 1.0.1"; } }
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{{ "language": "Solidity", "sources": { "contracts/U001.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/// @title: u-001\n/// @author: manifold.xyz\n\nimport \"./manifold/ERC721Creator.sol\";\n\n//////////////////////////////////////////////////////////////////////////////////////////////////////\n// //\n// //\n// ΦΦΦ Φ Φ Φ Φ Φ Φ Φ Φ Φ Φ Φ Φ Φ //\n// ΦΦ Φ Φ Φ Φ Φ ΦΦ Φ //\n// Φ Φ Φ Φ Φ Φ Φ Φ //\n// Φ Φ Φ Φ Φ //\n// Φ ΦΦ Φ Φ Φ Φ Φ ║ ║ ║ ║ ║ ║ ║ ║ //\n// ║ ║ ║ │ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║║║║║║║ ║ ║║ ║║ ║║║ ║ //\n// ║ ║ ║ ││ ││ │ ║ ║ ║│ ║║║ ║ ║ ││││ │ ││││ │││ ││ ║ ║ ║ //\n// ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║║║║ ║ ║║║║ ║║║ ║║║║║║ ║ ║ ║║ //\n// ║ ║║⌡║║║║ ║║║║║ ║║║║║ ║ ║ ║ ║ ⌡ ⌡║ ⌡ ║ ⌡⌡║ ⌡⌡ ║⌡ ⌡ ⌡⌡ ⌡ ⌡ ⌡⌡⌡ ⌡⌡⌡ //\n// ⌡⌡⌡⌡ ⌡⌡ ⌡ ⌡ ⌡ ⌡ ⌡ ║⌡⌡║ ⌡ ║ ⌡⌡║ ⌡║⌡⌡⌡⌡ ⌡½½ ⌡⌡ ⌡⌡⌡⌡⌡⌡⌡ ⌡⌡⌡ ⌡ ⌡⌡ ⌡⌡ ► //\n// ½ ½ ½ ½ ½ ⌡⌡⌡⌡┘⌡½ ⌡⌡ ⌡½ ⌡┘ ⌡ ⌡⌡ ½⌡⌡ ┘ ½½ ⌡ ½⌡½½½⌡⌡⌡ ⌡ ½½⌡ ⌡⌡┘⌡⌡⌡⌡ ⌡⌡⌡⌡┘⌡⌡⌡►►► //\n// ½ ½½┘┘½ ┘½ ½½ ┘ ½ ┘ ┘ ⌡ ⌡½⌡┘ ⌡⌡┘½ ⌡⌡┘ ┘½⌡⌡⌡½ ½┘½½┘⌡┘½ ┘½⌡½ ½⌡⌡ ⌡ ⌡ ► ⌡► ► ► ►⌡⌡ //\n// ½ ½⌡ ⌡ ⌡┘ ┘ ┘ ½ ½ ½ ½½ ½ ½ ½ ½ ⌡½ ½ ⌡ ⌡ ⌡ ►⌡ ► ► ⌡ ⌡ ⌡ ⌡ ⌡⌡½ ½½ //\n// ⌡⌡ ⌡⌡⌡⌡⌡½⌡½ ⌡½ ½⌡⌡½⌡⌡ ½⌡ ½ ┘⌡½⌡⌡ ½ ⌡►⌡ ½ ┘⌡½⌡⌡► ⌡►½►►⌡►⌡►½► ► ⌡⌡⌡►½⌡⌡┘┘½┘⌡⌡½►⌡ ► ►► //\n// ½►½½►½►½►►►►►►►►►⌡► ►►► ► ► ► ►► ► ⌡►►⌡ ⌡ ⌡ ⌡ ⌡ ┘ ⌡ ⌡ ┘ ┘ ┘ ┘► ► ►► ► ► ► //\n// ► ► ┘┘ ┘ ┘┘ ►┘ ┘ ┘► ┘┘ ►┘ ┘► ┘┘ ►►┘ ► ┘►┘ ► ► ►┘┘ ►►┘► //\n// ┘┘►┘► ►►► ┘ ► ►┘► ┘► ►►► ► ► ►┘ ►► ► ►► ► ►►► ► ►► ►► ►► //\n// ►►►┘► ┘ ► ┘ ►┘ ┘ ► ► ► ┘ ┘ ┘ ┘ ┘┘ //\n// ┘ ┘ ┘ ┘ ┘ ┘ //\n// //\n// ║ ■ //\n// ║║║║║║║║║ ║║║ ║ ║║║║║║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║■ ║ ■ ■ //\n// ■■ ║║ ║ ║║ ║║ ║║║║║║║║║ ║║║║║║ ║ ║ ║║║║║║║ ║║ ■ ║║║ ║ ■ ■ ■ ¡ ■ ■■ ¡ ¡■¡¡ //\n// ║║ ║ ║║ ╢ ╢ ║ ║ ║║ ¡ ¡■ ╢╢║║║ ║║ ¡ ╢╢ ¡ ╢ ¡ ╢ ╢ ╢╢ ╢╢¡■¡ ¡ //\n// ╢ ╢╢ ╢ ╢╢╢╢ ╢╢╢╢¡╢ ¡ ╢¡ ¡▐╢ ¡╢ ¡╢ ╢ ╢ ╢ ╢ ¡╢╢╢╢¡╢╢╢╢ ¡╢ ¡ ╢¡ ╢¡╢¡ ¡ //\n// ¡¡¡¡¡¡ ¡ ¡ ¡¡ ¡▐¡¡ ¡ ╢¡╢╢ ¡ ╢ ¡ ╢ ¡╢╢ ╢¡ ╢ ¡ ╢ ╢¡╢ ╢ ╢ ¡ ╢ ▐⌡ ⌡ //\n// ▐▐▐▐ ■■■╢ ■╢ ╢ ╢■ ╢ ■ ╢▐╢ ╢ ■ ╢╢■ ■╢ ╢╢ ¡ ╢ ¡ ╢⌡▐ ⌡ ╢╢ ▐ ▐╢ //\n// ╢╢ ╢ ╢ ╢ ╢ ▐ ╢ ╢▐ ╢ ╢ ╢ ╢╢ ¡⌡ ╢ ¡ ▐ ¡ ⌡╢¡ ╢¡¡¡¡ ╢╢▐ ╢╢ ╢╢ //\n// ¡ ╢¡¡╢ ╢¡▐ ╢ ¡⌡╢ ╢ ⌡ ¡ ⌡ ¡¡ ⌡▐ ■¡■▐ ¡■ ¡ ■ ¡■¡ ▐╢¡ ■ ¡ ¡▐ ■ ▐ ▐■ ▐▐ //\n// ⌡⌡⌡ ⌡ ⌡▐⌡ ⌡ ⌡ ⌡ ▐ ¡ ¡¡╢¡▐⌡¡ ▐¡¡¡¡¡ ¡¡ ¡¡¡⌡¡¡¡¡ ¡¡¡¡⌡¡¡¡¡ ¡ ■¡¡ ¡¡■ ¡¡¡■¡ ¡¡¡ ▐ //\n// ▐ ▐ ▐ ▐ ▐▐ ¡¡¡¡¡ ¡¡¡¡ ¡ ¡▐ ¡ ■ ■ ¡ ■ ■ ▐⌡ ⌡ ▌⌡ ▌▐▐▐▌ ▐ ▌ //\n// ▐ ▐ ▌▌▌ ▌ ▌ ▌ ▌ 2▐▌ ▐ ▌0 ▐ ⌡ 4 ⌡ ▐ 4 ▐ ⌡ lx ▌ ⌡⌡ ⌡ ▐⌡⌡▌▐ ▌ ▌ ▌ ▌ ▌ //\n// ■ ■■■ ■■ ■■⌡■▐■⌡▐■⌡■ ▐■⌡▐ ■ ▐ ■ ▐ ■ ▐ ▌■ ▐▌ ⌡ ■ ⌡ ▌▌■ ▌ ⌡ ▌■ ▌▌▌■ ▌▌ ■ ▌■▌ ▌■▌ //\n// ⌡⌡⌡ ⌡ ⌡ ▌ ▌ ▌ ▌ ▌▌ ■ ▌ ■ ■ ■▌ ■ ▌ ⌡■ ■⌡ ▌■ ■▌■▐■■ ▌■ ■■■ ■ ■■ ▌ ▌ //\n// ■▐ ■ ▌■▌▐▌▌ ■ ▌▌▌⌡▐▌ ▌⌡ ▌▌ ■▌ ⌡ ▌■ ⌡ ■ ▐ ■ ■ ▌ ▌ ▌ ▌ ▌ ▌⌡ ⌡▌⌡ ⌡⌡ //\n// ▌▌▌▌ ▌▌ ▌⌡■▌▌■▌▌▌■ ▌ ■ ▌ ▌■ ▌ ▌ ■ ▌▌■ ■▌ ■ ■ ■■ ▌⌡ ▌ ⌡ ▌▌⌡ ▌▌▌ ▌▌▌▌▌ //\n// ⌡⌡⌡⌡ ⌡ ⌡ ⌡ ⌡ ▌▌ ⌡ ⌡ ⌡⌡ ⌡⌡⌡⌡⌡ ⌡⌡ ⌡ ⌡▌ ⌡ ⌡⌡ ⌡⌡ ▌⌡⌡ ⌡ ⌡▌⌡⌡▌⌡⌡⌡ ⌡ ⌡ ⌡ ⌡⌡ ⌡ ⌡⌡ ⌡ //\n// ▌▌ ⌡⌡⌡▌⌡⌡⌡⌡⌡ ⌡⌡⌡⌡⌡⌡⌡⌡⌡⌡⌡⌡⌡⌡⌡⌡⌡⌡ ■■ ■⌡⌡⌡■ ■⌡⌡ ⌡■ ⌡⌡ ⌡■⌡ ⌡⌡⌡■⌡⌡⌡⌡⌡■⌡ ⌡⌡ ⌡⌡⌡ ⌡⌡⌡⌡⌡⌡⌡ //\n// //\n// //\n//////////////////////////////////////////////////////////////////////////////////////////////////////\n\n\ncontract U001 is ERC721Creator {\n constructor() ERC721Creator(\"u-001\", \"U001\") {}\n}\n" }, "contracts/manifold/ERC721Creator.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\n/// @author: manifold.xyz\n\nimport \"@openzeppelin/contracts/proxy/Proxy.sol\";\nimport \"@openzeppelin/contracts/utils/Address.sol\";\nimport \"@openzeppelin/contracts/utils/StorageSlot.sol\";\n\ncontract ERC721Creator is Proxy {\n \n constructor(string memory name, string memory symbol) {\n assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256(\"eip1967.proxy.implementation\")) - 1));\n StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0x5133522ea5A0494EcB83F26311A095DDD7a9D4b6;\n (bool success, ) = 0x5133522ea5A0494EcB83F26311A095DDD7a9D4b6.delegatecall(abi.encodeWithSignature(\"initialize(string,string)\", name, symbol));\n require(success, \"Initialization failed\");\n }\n \n /**\n * @dev Storage slot with the address of the current implementation.\n * This is the keccak-256 hash of \"eip1967.proxy.implementation\" subtracted by 1, and is\n * validated in the constructor.\n */\n bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\n\n /**\n * @dev Returns the current implementation address.\n */\n function implementation() public view returns (address) {\n return _implementation();\n }\n\n function _implementation() internal override view returns (address) {\n return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;\n } \n\n}\n" }, "node_modules/@openzeppelin/contracts/proxy/Proxy.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM\n * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to\n * be specified by overriding the virtual {_implementation} function.\n *\n * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a\n * different contract through the {_delegate} function.\n *\n * The success and return data of the delegated call will be returned back to the caller of the proxy.\n */\nabstract contract Proxy {\n /**\n * @dev Delegates the current call to `implementation`.\n *\n * This function does not return to its internal call site, it will return directly to the external caller.\n */\n function _delegate(address implementation) internal virtual {\n assembly {\n // Copy msg.data. We take full control of memory in this inline assembly\n // block because it will not return to Solidity code. We overwrite the\n // Solidity scratch pad at memory position 0.\n calldatacopy(0, 0, calldatasize())\n\n // Call the implementation.\n // out and outsize are 0 because we don't know the size yet.\n let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)\n\n // Copy the returned data.\n returndatacopy(0, 0, returndatasize())\n\n switch result\n // delegatecall returns 0 on error.\n case 0 {\n revert(0, returndatasize())\n }\n default {\n return(0, returndatasize())\n }\n }\n }\n\n /**\n * @dev This is a virtual function that should be overridden so it returns the address to which the fallback function\n * and {_fallback} should delegate.\n */\n function _implementation() internal view virtual returns (address);\n\n /**\n * @dev Delegates the current call to the address returned by `_implementation()`.\n *\n * This function does not return to its internal call site, it will return directly to the external caller.\n */\n function _fallback() internal virtual {\n _beforeFallback();\n _delegate(_implementation());\n }\n\n /**\n * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other\n * function in the contract matches the call data.\n */\n fallback() external payable virtual {\n _fallback();\n }\n\n /**\n * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data\n * is empty.\n */\n receive() external payable virtual {\n _fallback();\n }\n\n /**\n * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`\n * call, or as part of the Solidity `fallback` or `receive` functions.\n *\n * If overridden should call `super._beforeFallback()`.\n */\n function _beforeFallback() internal virtual {}\n}\n" }, "node_modules/@openzeppelin/contracts/utils/Address.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n *\n * Furthermore, `isContract` will also return true if the target contract within\n * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n * which only has an effect at the end of a transaction.\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n" }, "node_modules/@openzeppelin/contracts/utils/StorageSlot.sol": { "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)\n// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Library for reading and writing primitive types to specific storage slots.\n *\n * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.\n * This library helps with reading and writing to such slots without the need for inline assembly.\n *\n * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.\n *\n * Example usage to set ERC1967 implementation slot:\n * ```solidity\n * contract ERC1967 {\n * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\n *\n * function _getImplementation() internal view returns (address) {\n * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;\n * }\n *\n * function _setImplementation(address newImplementation) internal {\n * require(Address.isContract(newImplementation), \"ERC1967: new implementation is not a contract\");\n * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;\n * }\n * }\n * ```\n *\n * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._\n * _Available since v4.9 for `string`, `bytes`._\n */\nlibrary StorageSlot {\n struct AddressSlot {\n address value;\n }\n\n struct BooleanSlot {\n bool value;\n }\n\n struct Bytes32Slot {\n bytes32 value;\n }\n\n struct Uint256Slot {\n uint256 value;\n }\n\n struct StringSlot {\n string value;\n }\n\n struct BytesSlot {\n bytes value;\n }\n\n /**\n * @dev Returns an `AddressSlot` with member `value` located at `slot`.\n */\n function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `BooleanSlot` with member `value` located at `slot`.\n */\n function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.\n */\n function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `Uint256Slot` with member `value` located at `slot`.\n */\n function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `StringSlot` with member `value` located at `slot`.\n */\n function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `StringSlot` representation of the string storage pointer `store`.\n */\n function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := store.slot\n }\n }\n\n /**\n * @dev Returns an `BytesSlot` with member `value` located at `slot`.\n */\n function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := slot\n }\n }\n\n /**\n * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.\n */\n function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {\n /// @solidity memory-safe-assembly\n assembly {\n r.slot := store.slot\n }\n }\n}\n" } }, "settings": { "remappings": [ "@openzeppelin/=node_modules/@openzeppelin/" ], "optimizer": { "enabled": true, "runs": 300 }, "metadata": { "bytecodeHash": "ipfs" }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "london", "libraries": {} } }}
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{{ "language": "Solidity", "sources": { "contracts/uniswapv2/UniswapV2Pair.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity =0.6.12;\n\nimport './UniswapV2ERC20.sol';\nimport './libraries/Math.sol';\nimport './libraries/UQ112x112.sol';\nimport './interfaces/IERC20.sol';\nimport './interfaces/IUniswapV2Factory.sol';\nimport './interfaces/IUniswapV2Callee.sol';\n\n\ninterface IMigrator {\n // Return the desired amount of liquidity token that the migrator wants.\n function desiredLiquidity() external view returns (uint256);\n}\n\ncontract UniswapV2Pair is UniswapV2ERC20 {\n using SafeMathUniswap for uint;\n using UQ112x112 for uint224;\n\n uint public constant MINIMUM_LIQUIDITY = 10**3;\n bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));\n\n address public factory;\n address public token0;\n address public token1;\n\n uint112 private reserve0; // uses single storage slot, accessible via getReserves\n uint112 private reserve1; // uses single storage slot, accessible via getReserves\n uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves\n\n uint public price0CumulativeLast;\n uint public price1CumulativeLast;\n uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event\n\n uint public totalFee; // total fee (parts per thousand) charged for a swap\n uint public alpha; // numerator for the protocol fee factor\n uint public beta; // denominator for the protocol fee factor\n\n uint private unlocked = 1;\n modifier lock() {\n require(unlocked == 1, 'UniswapV2: LOCKED');\n unlocked = 0;\n _;\n unlocked = 1;\n }\n\n function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {\n _reserve0 = reserve0;\n _reserve1 = reserve1;\n _blockTimestampLast = blockTimestampLast;\n }\n\n function _safeTransfer(address token, address to, uint value) private {\n (bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));\n require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');\n }\n\n event Mint(address indexed sender, uint amount0, uint amount1);\n event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);\n event Swap(\n address indexed sender,\n uint amount0In,\n uint amount1In,\n uint amount0Out,\n uint amount1Out,\n address indexed to\n );\n event Sync(uint112 reserve0, uint112 reserve1);\n event FeeUpdated(uint totalFee, uint alpha, uint beta);\n\n constructor() public {\n factory = msg.sender;\n }\n\n // called once by the factory at time of deployment\n function initialize(address _token0, address _token1, uint _totalFee, uint _alpha, uint _beta) external {\n require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check\n require(_alpha > 0,\"_alpha must be greater than 0\");\n require(_beta > _alpha,\"beta should always be later than alpha\");\n require(_totalFee > 0,\"totalFee should not be 0, which will allow free flash swap\");\n token0 = _token0;\n token1 = _token1;\n totalFee = _totalFee;\n alpha = _alpha;\n beta = _beta;\n }\n\n function updateFee(uint _totalFee, uint _alpha, uint _beta) external {\n require(msg.sender == factory, 'UniswapV2: FORBIDDEN');\n totalFee = _totalFee;\n alpha = _alpha;\n beta = _beta;\n\n emit FeeUpdated(_totalFee, _alpha, _beta);\n }\n\n // update reserves and, on the first call per block, price accumulators\n function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {\n require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');\n uint32 blockTimestamp = uint32(block.timestamp % 2**32);\n uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired\n if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {\n // * never overflows, and + overflow is desired\n price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;\n price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;\n }\n reserve0 = uint112(balance0);\n reserve1 = uint112(balance1);\n blockTimestampLast = blockTimestamp;\n emit Sync(reserve0, reserve1);\n }\n\n // if fee is on, mint liquidity equivalent to alpha/beta of the growth in sqrt(k)\n function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {\n address feeTo = IUniswapV2Factory(factory).feeTo();\n feeOn = feeTo != address(0);\n uint _kLast = kLast; // gas savings\n if (feeOn) {\n if (_kLast != 0) {\n uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));\n uint rootKLast = Math.sqrt(_kLast);\n if (rootK > rootKLast) {\n uint numerator = totalSupply.mul(rootK.sub(rootKLast)).mul(alpha);\n uint denominator = rootK.mul(beta.sub(alpha)).add(rootKLast.mul(alpha));\n uint liquidity = numerator / denominator;\n if (liquidity > 0) _mint(feeTo, liquidity);\n }\n }\n } else if (_kLast != 0) {\n kLast = 0;\n }\n }\n\n // this low-level function should be called from a contract which performs important safety checks\n function mint(address to) external lock returns (uint liquidity) {\n (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings\n uint balance0 = IERC20Uniswap(token0).balanceOf(address(this));\n uint balance1 = IERC20Uniswap(token1).balanceOf(address(this));\n uint amount0 = balance0.sub(_reserve0);\n uint amount1 = balance1.sub(_reserve1);\n\n bool feeOn = _mintFee(_reserve0, _reserve1);\n uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee\n if (_totalSupply == 0) {\n address migrator = IUniswapV2Factory(factory).migrator();\n if (msg.sender == migrator) {\n liquidity = IMigrator(migrator).desiredLiquidity();\n require(liquidity > 0 && liquidity != uint256(-1), \"Bad desired liquidity\");\n } else {\n require(migrator == address(0), \"Must not have migrator\");\n liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);\n _mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens\n }\n } else {\n liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);\n }\n require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');\n _mint(to, liquidity);\n\n _update(balance0, balance1, _reserve0, _reserve1);\n if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date\n emit Mint(msg.sender, amount0, amount1);\n }\n\n // this low-level function should be called from a contract which performs important safety checks\n function burn(address to) external lock returns (uint amount0, uint amount1) {\n (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings\n address _token0 = token0; // gas savings\n address _token1 = token1; // gas savings\n uint balance0 = IERC20Uniswap(_token0).balanceOf(address(this));\n uint balance1 = IERC20Uniswap(_token1).balanceOf(address(this));\n uint liquidity = balanceOf[address(this)];\n\n bool feeOn = _mintFee(_reserve0, _reserve1);\n uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee\n amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution\n amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution\n require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');\n _burn(address(this), liquidity);\n _safeTransfer(_token0, to, amount0);\n _safeTransfer(_token1, to, amount1);\n balance0 = IERC20Uniswap(_token0).balanceOf(address(this));\n balance1 = IERC20Uniswap(_token1).balanceOf(address(this));\n\n _update(balance0, balance1, _reserve0, _reserve1);\n if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date\n emit Burn(msg.sender, amount0, amount1, to);\n }\n\n // this low-level function should be called from a contract which performs important safety checks\n function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {\n require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');\n (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings\n require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');\n\n uint balance0;\n uint balance1;\n { // scope for _token{0,1}, avoids stack too deep errors\n address _token0 = token0;\n address _token1 = token1;\n require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');\n if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens\n if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens\n if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);\n balance0 = IERC20Uniswap(_token0).balanceOf(address(this));\n balance1 = IERC20Uniswap(_token1).balanceOf(address(this));\n }\n uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;\n uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;\n require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');\n { // scope for reserve{0,1}Adjusted, avoids stack too deep errors\n uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(totalFee));\n uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(totalFee));\n require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');\n }\n\n _update(balance0, balance1, _reserve0, _reserve1);\n emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);\n }\n\n // force balances to match reserves\n function skim(address to) external lock {\n address _token0 = token0; // gas savings\n address _token1 = token1; // gas savings\n _safeTransfer(_token0, to, IERC20Uniswap(_token0).balanceOf(address(this)).sub(reserve0));\n _safeTransfer(_token1, to, IERC20Uniswap(_token1).balanceOf(address(this)).sub(reserve1));\n }\n\n // force reserves to match balances\n function sync() external lock {\n _update(IERC20Uniswap(token0).balanceOf(address(this)), IERC20Uniswap(token1).balanceOf(address(this)), reserve0, reserve1);\n }\n}\n" }, "contracts/uniswapv2/UniswapV2ERC20.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity =0.6.12;\n\nimport './libraries/SafeMath.sol';\n\ncontract UniswapV2ERC20 {\n using SafeMathUniswap for uint;\n\n string public constant name = 'ShibaSwap LP Token';\n string public constant symbol = 'SSLP';\n uint8 public constant decimals = 18;\n uint public totalSupply;\n mapping(address => uint) public balanceOf;\n mapping(address => mapping(address => uint)) public allowance;\n\n bytes32 public DOMAIN_SEPARATOR;\n // keccak256(\"Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)\");\n bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;\n mapping(address => uint) public nonces;\n\n event Approval(address indexed owner, address indexed spender, uint value);\n event Transfer(address indexed from, address indexed to, uint value);\n\n constructor() public {\n uint chainId;\n assembly {\n chainId := chainid()\n }\n DOMAIN_SEPARATOR = keccak256(\n abi.encode(\n keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),\n keccak256(bytes(name)),\n keccak256(bytes('1')),\n chainId,\n address(this)\n )\n );\n }\n\n function _mint(address to, uint value) internal {\n totalSupply = totalSupply.add(value);\n balanceOf[to] = balanceOf[to].add(value);\n emit Transfer(address(0), to, value);\n }\n\n function _burn(address from, uint value) internal {\n balanceOf[from] = balanceOf[from].sub(value);\n totalSupply = totalSupply.sub(value);\n emit Transfer(from, address(0), value);\n }\n\n function _approve(address owner, address spender, uint value) private {\n allowance[owner][spender] = value;\n emit Approval(owner, spender, value);\n }\n\n function _transfer(address from, address to, uint value) private {\n balanceOf[from] = balanceOf[from].sub(value);\n balanceOf[to] = balanceOf[to].add(value);\n emit Transfer(from, to, value);\n }\n\n function approve(address spender, uint value) external returns (bool) {\n _approve(msg.sender, spender, value);\n return true;\n }\n\n function transfer(address to, uint value) external returns (bool) {\n _transfer(msg.sender, to, value);\n return true;\n }\n\n function transferFrom(address from, address to, uint value) external returns (bool) {\n if (allowance[from][msg.sender] != uint(-1)) {\n allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);\n }\n _transfer(from, to, value);\n return true;\n }\n\n function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {\n require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');\n bytes32 digest = keccak256(\n abi.encodePacked(\n '\\x19\\x01',\n DOMAIN_SEPARATOR,\n keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))\n )\n );\n address recoveredAddress = ecrecover(digest, v, r, s);\n require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');\n _approve(owner, spender, value);\n }\n}\n" }, "contracts/uniswapv2/libraries/Math.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity =0.6.12;\n\n// a library for performing various math operations\n\nlibrary Math {\n function min(uint x, uint y) internal pure returns (uint z) {\n z = x < y ? x : y;\n }\n\n // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)\n function sqrt(uint y) internal pure returns (uint z) {\n if (y > 3) {\n z = y;\n uint x = y / 2 + 1;\n while (x < z) {\n z = x;\n x = (y / x + x) / 2;\n }\n } else if (y != 0) {\n z = 1;\n }\n }\n}\n" }, "contracts/uniswapv2/libraries/UQ112x112.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity =0.6.12;\n\n// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))\n\n// range: [0, 2**112 - 1]\n// resolution: 1 / 2**112\n\nlibrary UQ112x112 {\n uint224 constant Q112 = 2**112;\n\n // encode a uint112 as a UQ112x112\n function encode(uint112 y) internal pure returns (uint224 z) {\n z = uint224(y) * Q112; // never overflows\n }\n\n // divide a UQ112x112 by a uint112, returning a UQ112x112\n function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {\n z = x / uint224(y);\n }\n}\n" }, "contracts/uniswapv2/interfaces/IERC20.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.5.0;\n\ninterface IERC20Uniswap {\n event Approval(address indexed owner, address indexed spender, uint value);\n event Transfer(address indexed from, address indexed to, uint value);\n\n function name() external view returns (string memory);\n function symbol() external view returns (string memory);\n function decimals() external view returns (uint8);\n function totalSupply() external view returns (uint);\n function balanceOf(address owner) external view returns (uint);\n function allowance(address owner, address spender) external view returns (uint);\n\n function approve(address spender, uint value) external returns (bool);\n function transfer(address to, uint value) external returns (bool);\n function transferFrom(address from, address to, uint value) external returns (bool);\n}\n" }, "contracts/uniswapv2/interfaces/IUniswapV2Factory.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.5.0;\n\ninterface IUniswapV2Factory {\n event PairCreated(address indexed token0, address indexed token1, address pair, uint);\n\n function feeTo() external view returns (address);\n function feeToSetter() external view returns (address);\n function migrator() external view returns (address);\n\n function totalFeeTopCoin() external view returns (uint);\n function alphaTopCoin() external view returns (uint);\n function betaTopCoin() external view returns (uint);\n function totalFeeRegular() external view returns (uint);\n function alphaRegular() external view returns (uint);\n function betaRegular() external view returns (uint);\n\n function topCoins(address token) external view returns (bool isTopCoin);\n function getPair(address tokenA, address tokenB) external view returns (address pair);\n function allPairs(uint) external view returns (address pair);\n function allPairsLength() external view returns (uint);\n\n function createPair(address tokenA, address tokenB) external returns (address pair);\n\n function setFeeTo(address) external;\n function setFeeToSetter(address) external;\n function setMigrator(address) external;\n}\n" }, "contracts/uniswapv2/interfaces/IUniswapV2Callee.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.5.0;\n\ninterface IUniswapV2Callee {\n function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;\n}\n" }, "contracts/uniswapv2/libraries/SafeMath.sol": { "content": "// SPDX-License-Identifier: MIT\n\npragma solidity =0.6.12;\n\n// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)\n\nlibrary SafeMathUniswap {\n function add(uint x, uint y) internal pure returns (uint z) {\n require((z = x + y) >= x, 'ds-math-add-overflow');\n }\n\n function sub(uint x, uint y) internal pure returns (uint z) {\n require((z = x - y) <= x, 'ds-math-sub-underflow');\n }\n\n function mul(uint x, uint y) internal pure returns (uint z) {\n require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');\n }\n}\n" } }, "settings": { "optimizer": { "enabled": true, "runs": 5000 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } }, "metadata": { "useLiteralContent": true }, "libraries": {} } }}
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