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Sleeping
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// background.js
const LOG_LEVEL = {
DEBUG: 0,
INFO: 1,
WARN: 2,
ERROR: 3
};
// Set the current log level for the extension.
// For example, to see DEBUG, INFO, WARN, ERROR messages, set to LOG_LEVEL.DEBUG.
// To see only INFO, WARN, ERROR, set to LOG_LEVEL.INFO, and so on.
const CURRENT_LOG_LEVEL = LOG_LEVEL.DEBUG; // Default to showing all logs for now
function log(level, ...args) {
if (level < CURRENT_LOG_LEVEL) {
return;
}
// Preserve the existing prefix style
const prefix = '[Rebrowse BG]';
switch (level) {
case LOG_LEVEL.DEBUG:
console.debug(prefix, ...args);
break;
case LOG_LEVEL.INFO:
// console.info often styles the same as console.log, but is semantically correct.
console.info(prefix, ...args);
break;
case LOG_LEVEL.WARN:
console.warn(prefix, ...args);
break;
case LOG_LEVEL.ERROR:
console.error(prefix, ...args);
break;
default:
// Fallback for unknown levels, though ideally this shouldn't be hit.
console.log(prefix, `[UnknownLevel:${level}]`, ...args);
}
}
let NATIVE_PORT = null;
let portConnectInProgress = false;
const HOST_NAME = 'com.rebrowse.host';
let isNativeHostReady = false;
// Simple FIFO queue to buffer outbound messages when the native host is not ready.
// Each entry is a plain JS object that will be passed as-is to NATIVE_PORT.postMessage when flushed.
// FIX: The outbound queue in background.js had been disabled, if native post isn't ready yet.
const MESSAGE_QUEUE_MAX = 500;
let messageQueue = [];
// NEW: Variable to hold the last known recording status
let currentRecordingStatus = { status: 'idle', message: 'Awaiting host status.' };
function setupNativePortListeners(port) {
port.onMessage.addListener(msg => {
if (port !== NATIVE_PORT && NATIVE_PORT !== null) {
log(LOG_LEVEL.WARN, "Received message from an old/stale port. Ignoring type:", msg.type);
return;
}
if (msg.type === 'inject') {
if (msg.tabId && msg.payload) {
chrome.tabs.sendMessage(msg.tabId, msg.payload).catch(e => log(LOG_LEVEL.WARN, "β οΈ Error sending inject message to tab:", e.message));
}
} else if (msg.type === 'status' && msg.message === 'Native host ready and listening for CDP.') {
log(LOG_LEVEL.INFO, 'β Native host signaled ready. Current NATIVE_PORT matched. Sending ack.');
isNativeHostReady = true;
portConnectInProgress = false;
try {
if (NATIVE_PORT === port) {
NATIVE_PORT.postMessage({ type: "client_ready_ack", message: "Extension acknowledged host readiness." });
log(LOG_LEVEL.INFO, "βΊ Sending initial PING to host after ACK.");
NATIVE_PORT.postMessage({ type: "extension_ping", data: "keep_alive" });
processMessageQueue();
} else {
log(LOG_LEVEL.WARN, "β οΈ Port changed before client_ready_ack/ping could be sent (in host ready handler).");
isNativeHostReady = false;
}
} catch (e) {
log(LOG_LEVEL.ERROR, "β Error sending client_ready_ack or ping:", e.message);
isNativeHostReady = false;
if (NATIVE_PORT === port) { try { port.disconnect(); } catch (ex){} NATIVE_PORT = null; portConnectInProgress = false; setTimeout(ensureNativeConnection, 500); }
}
} else if (msg.type === 'ack') {
// Specific request to move cdp_event and ui_event ACKs to DEBUG
if (msg.received_event_type === 'cdp_event' || msg.received_event_type === 'ui_event') {
log(LOG_LEVEL.DEBUG, `β ACK: Host β ${msg.received_event_type}: ${msg.details}`);
} else {
log(LOG_LEVEL.INFO, `β ACK: Host β ${msg.received_event_type}: ${msg.details}`);
}
} else if (msg.type === 'recording_status_update') {
log(LOG_LEVEL.INFO, `[Rebrowse BG] Received recording_status_update from host:`, msg.payload);
// Store the latest status
currentRecordingStatus = msg.payload;
// Forward this to the popup
chrome.runtime.sendMessage({ type: 'recording_status', data: msg.payload }).catch(e => {
log(LOG_LEVEL.WARN, "[Rebrowse BG] Error sending recording_status to popup (popup might be closed):", e.message);
});
} else if (msg.type === 'replay-step') {
log(LOG_LEVEL.INFO, `[Rebrowse BG] Received replay-step from host:`, msg);
(async () => {
try {
const { action, selector, value } = msg;
const [tab] = await chrome.tabs.query({active: true, currentWindow: true});
if (tab) {
chrome.tabs.sendMessage(tab.id, { action, selector, value });
} else {
log(LOG_LEVEL.WARN, 'Could not find active tab to send replay step.');
}
} catch (e) {
log(LOG_LEVEL.ERROR, 'Error processing replay-step:', e.message);
}
})();
}
});
port.onDisconnect.addListener(() => {
log(LOG_LEVEL.ERROR, `π Native port disconnected.`);
if (chrome.runtime.lastError) {
log(LOG_LEVEL.ERROR, 'Disconnect reason:', chrome.runtime.lastError.message);
} else {
log(LOG_LEVEL.WARN, 'β οΈ Native port disconnected without a specific chrome.runtime.lastError.');
}
if (NATIVE_PORT === port || NATIVE_PORT === null) {
NATIVE_PORT = null;
isNativeHostReady = false;
portConnectInProgress = false;
// Also reset recording status on disconnect, as we don't know the state anymore.
currentRecordingStatus = { status: 'error', message: 'Host disconnected.' };
log(LOG_LEVEL.INFO, 'βΊ Current native port nulled by onDisconnect. Attempting to reconnect in 1 second...');
setTimeout(ensureNativeConnection, 1000);
}
});
}
function ensureNativeConnection() {
if (NATIVE_PORT && isNativeHostReady) {
return true;
}
if (portConnectInProgress) {
log(LOG_LEVEL.DEBUG, "βΊ Port connection attempt already in progress. Not starting new one.");
return false;
}
log(LOG_LEVEL.INFO, `βΊ Attempting to connect to native host '${HOST_NAME}'...`);
isNativeHostReady = false;
portConnectInProgress = true;
try {
const newPort = chrome.runtime.connectNative(HOST_NAME);
NATIVE_PORT = newPort;
log(LOG_LEVEL.INFO, "β Native port object created. Setting up listeners.");
setupNativePortListeners(newPort);
return true;
} catch (e) {
log(LOG_LEVEL.ERROR, "β CRITICAL ERROR during chrome.runtime.connectNative:", e.message);
if (NATIVE_PORT) {
try { NATIVE_PORT.disconnect(); } catch(ex){ log(LOG_LEVEL.WARN, "β οΈ Error disconnecting potentially bad port during connectNative failure:", ex.message); }
}
NATIVE_PORT = null;
isNativeHostReady = false;
portConnectInProgress = false;
log(LOG_LEVEL.INFO, 'βΊ Scheduling retry connection in 2 seconds due to critical connection error...');
setTimeout(ensureNativeConnection, 2000);
return false;
}
}
// DIAGNOSTIC: Simplified postMessageToNativeHost without queueing
function postMessageToNativeHost(messageObject) {
if (!NATIVE_PORT || !isNativeHostReady) {
// Host is not currently ready. Buffer the message for later.
if (messageQueue.length < MESSAGE_QUEUE_MAX) {
messageQueue.push(messageObject);
log(LOG_LEVEL.WARN, `β οΈ postMessage: Host not ready β queued message of type ${messageObject.type}. Queue length now ${messageQueue.length}.`);
} else {
log(LOG_LEVEL.ERROR, `β postMessage: MESSAGE_QUEUE_MAX (${MESSAGE_QUEUE_MAX}) reached, dropping message of type ${messageObject.type}.`);
}
// Kick off (or retry) connection attempts so the queue will eventually flush.
ensureNativeConnection();
return;
}
log(LOG_LEVEL.DEBUG, `βΊβΊ postMessage: Port valid & host ready. Attempting send for type: ${messageObject.type}`);
try {
NATIVE_PORT.postMessage(messageObject);
log(LOG_LEVEL.DEBUG, `ββ postMessage: Successfully posted message to Host: ${messageObject.type}`);
} catch (e) {
log(LOG_LEVEL.ERROR, `β postMessage: IMMEDIATE ERROR posting message ${messageObject.type}:`, e.message);
if (chrome.runtime.lastError) {
log(LOG_LEVEL.ERROR, `β chrome.runtime.lastError after post:`, chrome.runtime.lastError.message);
}
isNativeHostReady = false;
if (NATIVE_PORT) {
try { NATIVE_PORT.disconnect(); } catch (ex) { /* ignore */ }
}
NATIVE_PORT = null;
portConnectInProgress = false;
log(LOG_LEVEL.INFO, 'βΊ Error during post. Triggering ensureNativeConnection immediately.');
ensureNativeConnection();
// The send failed; push the message back onto the head of the queue for a retry.
messageQueue.unshift(messageObject);
}
}
function processMessageQueue() {
if (!NATIVE_PORT || !isNativeHostReady) {
return; // Nothing to do, will retry when connection established.
}
while (messageQueue.length > 0) {
const msg = messageQueue.shift();
try {
NATIVE_PORT.postMessage(msg);
log(LOG_LEVEL.INFO, `ββ Flushed queued message to Host: ${msg.type}. Remaining queue length: ${messageQueue.length}`);
} catch (e) {
log(LOG_LEVEL.ERROR, `β Error flushing queued message of type ${msg.type}:`, e.message);
// Put the message back and break β we'll retry later.
messageQueue.unshift(msg);
if (NATIVE_PORT) {
try { NATIVE_PORT.disconnect(); } catch (_) {}
}
NATIVE_PORT = null;
isNativeHostReady = false;
ensureNativeConnection();
break;
}
}
}
log(LOG_LEVEL.INFO, "Script evaluated. Initializing native connection...");
ensureNativeConnection();
chrome.runtime.onInstalled.addListener(() => {
log(LOG_LEVEL.INFO, 'β¨ Extension installed/updated - background.js ready');
ensureNativeConnection();
});
chrome.tabs.onActivated.addListener(({ tabId }) => {
log(LOG_LEVEL.INFO, `βΊ Tab activated: ${tabId}. Triggering attach logic.`);
attemptToAttachDebugger(tabId);
});
chrome.tabs.onUpdated.addListener((tabId, changeInfo, tab) => {
if (changeInfo.status === 'complete' && tab.url) {
log(LOG_LEVEL.INFO, `βΊ Tab updated: ${tabId}, status: 'complete', url: ${tab.url}. Triggering attach logic.`);
attemptToAttachDebugger(tabId);
}
});
async function attemptToAttachDebugger(tabId) {
let tabInfo;
try {
tabInfo = await chrome.tabs.get(tabId);
} catch (e) {
log(LOG_LEVEL.WARN, `β οΈ Failed to get tab info for tabId ${tabId}:`, e.message);
return;
}
if (!tabInfo || !tabInfo.url) {
log(LOG_LEVEL.DEBUG, `βοΈ Skipping debugger attach for tabId ${tabId}: No URL info or tab closed.`);
return;
}
if (tabInfo.url.startsWith('chrome://') || tabInfo.url.startsWith('devtools://') || tabInfo.url.startsWith('chrome-extension://')) {
log(LOG_LEVEL.INFO, `βοΈ Skipping debugger attach for protected URL: ${tabInfo.url} on tab ${tabId}`);
return;
}
try {
const attachedTargets = await chrome.debugger.getTargets();
const isAttached = attachedTargets.some(target => target.tabId === tabId && target.attached);
if (isAttached) {
log(LOG_LEVEL.DEBUG, `β Debugger already attached to tab ${tabId} (${tabInfo.url}).`);
return;
}
log(LOG_LEVEL.INFO, `βΊ Attaching debugger to tab ${tabId} (${tabInfo.url}).`);
await chrome.debugger.attach({ tabId }, '1.3');
log(LOG_LEVEL.INFO, `β Successfully attached CDP to tab ${tabId} (${tabInfo.url})`);
try {
await chrome.debugger.sendCommand({ tabId }, "Page.enable");
log(LOG_LEVEL.DEBUG, `β Page domain enabled for tab ${tabId}`);
await chrome.debugger.sendCommand({ tabId }, "Network.enable");
log(LOG_LEVEL.DEBUG, `β Network domain enabled for tab ${tabId}`);
await chrome.debugger.sendCommand({ tabId }, "Runtime.enable");
log(LOG_LEVEL.DEBUG, `β Runtime domain enabled for tab ${tabId}`);
} catch (e) {
log(LOG_LEVEL.ERROR, `β Error enabling CDP domains for tab ${tabId}:`, e.message);
}
} catch (e) {
log(LOG_LEVEL.ERROR, `β Debugger attach failed for tab ${tabId} (${tabInfo.url}):`, e.message);
}
}
const cdpEventListener = (debuggeeId, method, params) => {
const tabId = debuggeeId.tabId;
if (tabId) {
postMessageToNativeHost({ type: 'cdp', method, params, tabId });
} else {
log(LOG_LEVEL.WARN, "β οΈ CDP Event received without tabId in debuggeeId:", debuggeeId, method);
}
};
try {
if (chrome.debugger.onEvent.hasListener(cdpEventListener)) {
chrome.debugger.onEvent.removeListener(cdpEventListener);
}
} catch (e) { /* Best effort */ }
chrome.debugger.onEvent.addListener(cdpEventListener);
log(LOG_LEVEL.INFO, "Global CDP event listener set up.");
chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
if (message.source === 'popup' && message.action === 'start_recording') {
log(LOG_LEVEL.INFO, '[Rebrowse BG] Received start_recording command from popup.');
postMessageToNativeHost({ type: 'recording_command', command: 'START' });
// Optional: send an immediate acknowledgement back to popup if needed,
// but actual status will come from host.py later.
sendResponse({ status: 'start_recording_command_sent_to_host' });
return true; // Indicates you wish to send a response asynchronously (or synchronously)
} else if (message.source === 'popup' && message.action === 'stop_recording') {
log(LOG_LEVEL.INFO, '[Rebrowse BG] Received stop_recording command from popup.');
postMessageToNativeHost({ type: 'recording_command', command: 'STOP' });
sendResponse({ status: 'stop_recording_command_sent_to_host' });
return true;
} else if (message.source === 'popup' && message.action === 'get_recording_status') {
log(LOG_LEVEL.INFO, `[Rebrowse BG] Popup requested recording status. Sending current status:`, currentRecordingStatus);
sendResponse({ type: 'recording_status', data: currentRecordingStatus });
// To prevent the "message port closed" error, it's safest to always
// return true from a listener that sends a response.
return true;
}
// Keep existing UI event handling
else if (message.type === 'rebrowse_ui_event' && message.data) {
const uiEvent = message.data;
let eventDetails = `type: ${uiEvent.type}`;
if (uiEvent.type === 'keydown' && typeof uiEvent.key !== 'undefined') {
eventDetails += `, key: '${uiEvent.key}'`;
} else if (uiEvent.type === 'mousedown' && typeof uiEvent.selector !== 'undefined') {
eventDetails += `, selector: '${uiEvent.selector}', button: ${uiEvent.button}`;
}
log(LOG_LEVEL.INFO, `βΊβΊ UI Event (Tab: ${sender.tab ? sender.tab.id : 'N/A'}): ${eventDetails}`);
postMessageToNativeHost({ type: 'ui_event_to_host', payload: uiEvent });
sendResponse({status: `UI event '${uiEvent.type}' received by background.js and attempt to forward was made`});
return false; // No async response needed beyond this for UI events handled here.
}
// If the message is not handled by the new popup commands or existing UI event handling,
// return false or nothing to indicate no response will be sent.
// log(LOG_LEVEL.DEBUG, "[Rebrowse BG] onMessage: No handler for this message type", message);
return false;
});
////////////////////////////////////////////////////////////
// Driver for Huggin Face Space UI
////////////////////////////////////////////////////////////
// 1οΈβ£ talking to the native host (recording & replay)
// send user events from content-script β host.py β trace
chrome.runtime.onMessage.addListener((msg, sender) => {
if (msg.type === "user-event") {
log(LOG_LEVEL.INFO, `[Rebrowse BG] Forwarding 'user-event' to host:`, msg);
postMessageToNativeHost(msg);
}
});
// 3οΈβ£ simple ACK so host.py can await step completion
chrome.runtime.onMessage.addListener((msg, sender, sendResp) => {
if (msg.type === "step-done") {
log(LOG_LEVEL.INFO, `[Rebrowse BG] Received 'step-done' from content script. Acknowledging to host. ID: ${msg.id}`);
postMessageToNativeHost({ type: "ack", id: msg.id });
}
});
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