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pragma solidity ^0.4.18;
contract Ownable {
address public owner;
function Ownable() public {
owner = msg.sender;
}
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
}
contract ISStop is Ownable {
bool public stopped;
modifier stoppable {
assert (!stopped);
_;
}
function stop() public onlyOwner {
stopped = true;
}
function start() public onlyOwner {
stopped = false;
}
}
contract ERC20Basic {
function allowance(address owner, address spender) public view returns (uint256);
function transferFrom(address from, address to, uint256 value) public returns (bool);
function approve(address spender, uint256 value) public returns (bool);
event Approval(address indexed owner, address indexed spender, uint256 value);
function totalSupply() public view returns (uint256);
function balanceOf(address who) public view returns (uint256);
function transfer(address to, uint256 value) public returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
}
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
assert(c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a / b;
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
}
contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) balances;
uint256 totalSupply_;
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
function transfer(address _to, uint256 _value) public returns (bool) {
require(_to != address(0));
require(_value <= balances[msg.sender]);
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
function balanceOf(address _owner) public view returns (uint256 balance) {
return balances[_owner];
}
}
contract StandardToken is BasicToken {
mapping (address => mapping (address => uint256)) internal allowed;
function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
require(_to != address(0));
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
function approve(address _spender, uint256 _value) public returns (bool) {
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) public view returns (uint256) {
return allowed[_owner][_spender];
}
function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) {
uint oldValue = allowed[msg.sender][_spender];
if (_subtractedValue > oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
contract InseeCoin is ISStop, StandardToken{
string public name = "Insee Coin";
uint8 public decimals = 18;
string public symbol = "SEE";
string public version = "v0.1";
uint256 public initialAmount = (10 ** 10) * (10 ** 18);
event Destroy(address from, uint value);
function InseeCoin() public {
balances[msg.sender] = initialAmount;
totalSupply_ = initialAmount;
}
function transfer(address dst, uint wad) public stoppable returns (bool) {
return super.transfer(dst, wad);
}
function transferFrom(address src, address dst, uint wad) public stoppable returns (bool) {
return super.transferFrom(src, dst, wad);
}
function approve(address guy, uint wad) public stoppable returns (bool) {
return super.approve(guy, wad);
}
function destroy(uint256 _amount) external onlyOwner stoppable returns (bool success){
require(balances[msg.sender] >= _amount);
balances[msg.sender] = balances[msg.sender].sub(_amount);
totalSupply_ = totalSupply_.sub(_amount);
emit Destroy(msg.sender, _amount);
return true;
}
function setName(string name_) public onlyOwner{
name = name_;
}
}
contract TokenLock {
using SafeMath for uint256;
InseeCoin public ISC;
uint256 private nextLockID = 0;
mapping (uint256 => TokenTimeLockInfo) public locks;
struct TokenTimeLockInfo {
address beneficiary;
uint256 amount;
uint256 unlockTime;
}
event Lock (uint256 indexed id, address indexed beneficiary,uint256 amount, uint256 lockTime);
event Unlock (uint256 indexed id, address indexed beneficiary,uint256 amount, uint256 unlockTime);
function TokenLock(InseeCoin isc) public {
assert(address(isc) != address(0));
ISC = isc;
}
function lock (
address _beneficiary, uint256 _amount,
uint256 _lockTime) public returns (uint256) {
require (_amount > 0);
require (_lockTime > 0);
nextLockID = nextLockID.add(1);
uint256 id = nextLockID;
TokenTimeLockInfo storage lockInfo = locks [id];
require (lockInfo.beneficiary == 0x0);
require (lockInfo.amount == 0);
require (lockInfo.unlockTime == 0);
lockInfo.beneficiary = _beneficiary;
lockInfo.amount = _amount;
lockInfo.unlockTime = now.add(_lockTime);
emit Lock (id, _beneficiary, _amount, _lockTime);
require (ISC.transferFrom (msg.sender, this, _amount));
return id;
}
function unlock (uint256 _id) public {
TokenTimeLockInfo memory lockInfo = locks [_id];
delete locks [_id];
require (lockInfo.amount > 0);
require (lockInfo.unlockTime <= block.timestamp);
emit Unlock (_id, lockInfo.beneficiary, lockInfo.amount, lockInfo.unlockTime);
require (
ISC.transfer (
lockInfo.beneficiary, lockInfo.amount));
}
} |