Google Calendar MCP

import { initializeOAuth2Client } from './auth/client.js'; import { AuthServer } from './auth/server.js'; async function runAuthServer() { let authServer: AuthServer | null = null; // Keep reference for cleanup try { const oauth2Client = await initializeOAuth2Client(); authServer = new AuthServer(oauth2Client); const success = await authServer.start(true); if (!success && !authServer.authCompletedSuccessfully) { process.stderr.write('Authentication failed. Could not start server or validate existing tokens.\n'); process.exit(1); } else if (authServer.authCompletedSuccessfully) { process.stderr.write('Authentication successful.\n'); process.exit(0); } // If we reach here, the server started and is waiting for the browser callback process.stderr.write('Authentication server started. Please complete the authentication in your browser...\n'); process.stderr.write(`Waiting for OAuth callback on port ${authServer.getRunningPort()}...\n`); // Poll for completion or handle SIGINT let lastDebugLog = 0; const pollInterval = setInterval(async () => { try { if (authServer?.authCompletedSuccessfully) { process.stderr.write('Authentication completed successfully detected. Stopping server...\n'); clearInterval(pollInterval); await authServer.stop(); process.stderr.write('Authentication successful. Server stopped.\n'); process.exit(0); } else { // Add debug logging every 10 seconds to show we're still waiting const now = Date.now(); if (now - lastDebugLog > 10000) { process.stderr.write('Still waiting for authentication to complete...\n'); lastDebugLog = now; } } } catch (error: unknown) { process.stderr.write(`Error in polling interval: ${error instanceof Error ? error.message : 'Unknown error'}\n`); clearInterval(pollInterval); if (authServer) await authServer.stop(); process.exit(1); } }, 5000); // Check every second // Handle process termination (SIGINT) process.on('SIGINT', async () => { clearInterval(pollInterval); // Stop polling if (authServer) { await authServer.stop(); } process.exit(0); }); } catch (error: unknown) { process.stderr.write(`Authentication error: ${error instanceof Error ? error.message : 'Unknown error'}\n`); if (authServer) await authServer.stop(); // Attempt cleanup process.exit(1); } } // Run the auth server if this file is executed directly if (import.meta.url.endsWith('auth-server.js')) { runAuthServer().catch((error: unknown) => { process.stderr.write(`Unhandled error: ${error instanceof Error ? error.message : 'Unknown error'}\n`); process.exit(1); }); }