| 26 | } |
| 27 | |
| 28 | async function startMockServer(): Promise<MockServerContext> { |
| 29 | const events: ChromeDevToolsMcpExtension[] = []; |
| 30 | let waitingResolvers: Array<{ |
| 31 | predicate: (event: ChromeDevToolsMcpExtension) => boolean; |
| 32 | resolve: (event: ChromeDevToolsMcpExtension) => void; |
| 33 | }> = []; |
| 34 | let watchdogPid: number | undefined; |
| 35 | |
| 36 | const server = http.createServer((req, res) => { |
| 37 | if (req.method === 'POST') { |
| 38 | const pidHeader = req.headers['x-watchdog-pid']; |
| 39 | if (pidHeader && !Array.isArray(pidHeader)) { |
| 40 | watchdogPid = parseInt(pidHeader, 10); |
| 41 | } |
| 42 | |
| 43 | let body = ''; |
| 44 | req.on('data', chunk => { |
| 45 | body += chunk.toString(); |
| 46 | }); |
| 47 | req.on('end', () => { |
| 48 | try { |
| 49 | const parsed = JSON.parse(body); |
| 50 | // Extract internal log events |
| 51 | if (parsed.log_event) { |
| 52 | for (const logEvent of parsed.log_event) { |
| 53 | if (logEvent.source_extension_json) { |
| 54 | const ext = JSON.parse( |
| 55 | logEvent.source_extension_json, |
| 56 | ) as ChromeDevToolsMcpExtension; |
| 57 | events.push(ext); |
| 58 | |
| 59 | // Check if any waiters are satisfied |
| 60 | waitingResolvers = waitingResolvers.filter( |
| 61 | ({predicate, resolve}) => { |
| 62 | if (predicate(ext)) { |
| 63 | resolve(ext); |
| 64 | return false; |
| 65 | } |
| 66 | return true; |
| 67 | }, |
| 68 | ); |
| 69 | } |
| 70 | } |
| 71 | } |
| 72 | } catch (err) { |
| 73 | console.error('Failed to parse mock server request', err); |
| 74 | } |
| 75 | res.writeHead(200, {'Content-Type': 'application/json'}); |
| 76 | res.end(JSON.stringify({next_request_wait_millis: 100})); |
| 77 | }); |
| 78 | } else { |
| 79 | res.writeHead(404); |
| 80 | res.end(); |
| 81 | } |
| 82 | }); |
| 83 | |
| 84 | await new Promise<void>(resolve => { |
| 85 | server.listen(0, '127.0.0.1', () => resolve()); |