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feat: support connecting to remote Chrome via CDP #65

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feat: support connecting to remote Chrome via CDP #65

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26 changes: 23 additions & 3 deletions scripts/cdp-proxy.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -102,8 +102,16 @@ function checkPort(port) {
}

function getWebSocketUrl(port, wsPath) {
if (wsPath) return `ws://127.0.0.1:${port}${wsPath}`;
return `ws://127.0.0.1:${port}/devtools/browser`;
const host = process.env.WEB_ACCESS_REMOTE_CDP_HOST || '127.0.0.1';
if (wsPath) return `ws://${host}:${port}${wsPath}`;
return `ws://${host}:${port}/devtools/browser`;
}

function isRemoteCDPHost() {
const host = process.env.WEB_ACCESS_REMOTE_CDP_HOST;
if (!host) return false;
const localHosts = ['127.0.0.1', 'localhost', '::1', '::ffff:127.0.0.1'];
return !localHosts.includes(host);
}

// --- WebSocket 连接管理 ---
Expand All @@ -115,7 +123,18 @@ async function connect() {
if (ws && (ws.readyState === WS.OPEN || ws.readyState === 1)) return;
if (connectingPromise) return connectingPromise; // 复用进行中的连接

if (!chromePort) {
// 远程模式判断
const isRemoteMode = isRemoteCDPHost();
if (isRemoteMode) {
const port = parseInt(process.env.WEB_ACCESS_REMOTE_CDP_PORT || '9222');
if (isNaN(port) || port <= 0 || port > 65535) {
throw new Error('WEB_ACCESS_REMOTE_CDP_PORT 无效: ' + process.env.WEB_ACCESS_REMOTE_CDP_PORT);
}
chromePort = port;
chromeWsPath = null;
}

if (!isRemoteMode && !chromePort) {
const discovered = await discoverChromePort();
if (!discovered) {
throw new Error(
Expand Down Expand Up @@ -236,6 +255,7 @@ async function ensureSession(targetId) {
// 只拦截 127.0.0.1:{chromePort} 的请求，不影响其他任何本地服务
async function enablePortGuard(sessionId) {
if (!chromePort || portGuardedSessions.has(sessionId)) return;
if (isRemoteCDPHost()) return; // 非本地地址时跳过端口拦截
try {
await sendCDP('Fetch.enable', {
patterns: [
Expand Down