MCP Console Automation Server

import { spawn, ChildProcess } from 'child_process'; import { BaseProtocol } from '../core/BaseProtocol.js'; import { ConsoleSession, SessionOptions, ConsoleType, ConsoleOutput, } from '../types/index.js'; import { ProtocolCapabilities, SessionState, ErrorContext, } from '../core/IProtocol.js'; // MongoDB Client connection options interface MongoDBConnectionOptions extends SessionOptions { host?: string; port?: number; username?: string; password?: string; database?: string; authSource?: string; ssl?: boolean; connectTimeout?: number; socketTimeout?: number; replicaSet?: string; uri?: string; } /** * MongoDB Protocol Implementation * * Provides MongoDB database console access through mongosh CLI * Supports both local and remote MongoDB connections with authentication */ export class MongoDBProtocol extends BaseProtocol { public readonly type: ConsoleType = 'mongodb'; public readonly capabilities: ProtocolCapabilities; private mongoProcesses = new Map<string, ChildProcess>(); constructor() { super('mongodb'); this.capabilities = { supportsStreaming: true, supportsFileTransfer: false, supportsX11Forwarding: false, supportsPortForwarding: false, supportsAuthentication: true, supportsEncryption: true, supportsCompression: false, supportsMultiplexing: false, supportsKeepAlive: true, supportsReconnection: true, supportsBinaryData: false, supportsCustomEnvironment: true, supportsWorkingDirectory: true, supportsSignals: true, supportsResizing: false, supportsPTY: false, maxConcurrentSessions: 50, defaultTimeout: 30000, supportedEncodings: ['utf-8'], supportedAuthMethods: ['password', 'ssl', 'x509'], platformSupport: { windows: true, linux: true, macos: true, freebsd: true, }, }; } async initialize(): Promise<void> { if (this.isInitialized) return; try { // Check if mongosh client is available await this.checkMongoClientAvailability(); this.isInitialized = true; this.logger.info( 'MongoDB protocol initialized with session management fixes' ); } catch (error: any) { this.logger.error('Failed to initialize MongoDB protocol', error); throw error; } } async createSession(options: SessionOptions): Promise<ConsoleSession> { const sessionId = `mongodb-${Date.now()}-${Math.random().toString(36).substring(2, 11)}`; return await this.createSessionWithTypeDetection(sessionId, options); } async dispose(): Promise<void> { await this.cleanup(); } async executeCommand( sessionId: string, command: string, args?: string[] ): Promise<void> { const fullCommand = args && args.length > 0 ? `${command} ${args.join(' ')}` : command; await this.sendInput(sessionId, fullCommand + '\n'); } async sendInput(sessionId: string, input: string): Promise<void> { const mongoProcess = this.mongoProcesses.get(sessionId); if (!mongoProcess || !mongoProcess.stdin) { throw new Error(`No active MongoDB connection for session: ${sessionId}`); } mongoProcess.stdin.write(input); this.logger.debug( `Sent input to MongoDB session ${sessionId}: ${input.substring(0, 100)}` ); } async closeSession(sessionId: string): Promise<void> { try { const mongoProcess = this.mongoProcesses.get(sessionId); if (mongoProcess) { mongoProcess.kill(); this.mongoProcesses.delete(sessionId); } // Clean up base protocol session this.sessions.delete(sessionId); this.outputBuffers.delete(sessionId); this.logger.info(`MongoDB session ${sessionId} closed`); this.emit('session-closed', { sessionId }); } catch (error) { this.logger.error(`Error closing MongoDB session ${sessionId}:`, error); throw error; } } async doCreateSession( sessionId: string, options: SessionOptions, sessionState: SessionState ): Promise<ConsoleSession> { if (!this.isInitialized) { await this.initialize(); } const mongoOptions = options as MongoDBConnectionOptions; // Build MongoDB connection command const mongoCommand = this.buildMongoCommand(mongoOptions); // Spawn mongosh process const mongoProcess = spawn(mongoCommand[0], mongoCommand.slice(1), { stdio: ['pipe', 'pipe', 'pipe'], cwd: options.cwd, env: { ...process.env, ...options.env }, }); // Set up output handling mongoProcess.stdout?.on('data', (data) => { const output: ConsoleOutput = { sessionId, type: 'stdout', data: data.toString(), timestamp: new Date(), }; this.addToOutputBuffer(sessionId, output); }); mongoProcess.stderr?.on('data', (data) => { const output: ConsoleOutput = { sessionId, type: 'stderr', data: data.toString(), timestamp: new Date(), }; this.addToOutputBuffer(sessionId, output); }); mongoProcess.on('error', (error) => { this.logger.error( `MongoDB process error for session ${sessionId}:`, error ); this.emit('session-error', { sessionId, error }); }); mongoProcess.on('close', (code) => { this.logger.info( `MongoDB process closed for session ${sessionId} with code ${code}` ); this.markSessionComplete(sessionId, code || 0); }); // Store the process this.mongoProcesses.set(sessionId, mongoProcess); // Create session object const session: ConsoleSession = { id: sessionId, command: mongoCommand[0], args: mongoCommand.slice(1), cwd: options.cwd || process.cwd(), env: { ...process.env, ...options.env }, createdAt: new Date(), lastActivity: new Date(), status: 'running', type: this.type, streaming: options.streaming, executionState: 'idle', activeCommands: new Map(), }; this.sessions.set(sessionId, session); this.logger.info( `MongoDB session ${sessionId} created for ${mongoOptions.host || 'localhost'}:${mongoOptions.port || 27017}` ); this.emit('session-created', { sessionId, type: 'mongodb', session }); return session; } private async checkMongoClientAvailability(): Promise<void> { return new Promise((resolve, reject) => { const testProcess = spawn('mongosh', ['--version'], { stdio: 'pipe' }); testProcess.on('close', (code) => { if (code === 0) { resolve(); } else { reject( new Error( 'MongoDB shell (mongosh) not found. Please install MongoDB shell.' ) ); } }); testProcess.on('error', () => { reject( new Error( 'MongoDB shell (mongosh) not found. Please install MongoDB shell.' ) ); }); }); } private buildMongoCommand(options: MongoDBConnectionOptions): string[] { if (options.uri) { return ['mongosh', options.uri]; } const command = ['mongosh']; // Connection parameters if (options.host) { command.push('--host', options.host); } if (options.port) { command.push('--port', options.port.toString()); } if (options.username) { command.push('--username', options.username); } if (options.password) { command.push('--password', options.password); } if (options.database) { command.push(options.database); } if (options.authSource) { command.push('--authenticationDatabase', options.authSource); } if (options.ssl) { command.push('--ssl'); } return command; } async cleanup(): Promise<void> { this.logger.info('Cleaning up MongoDB protocol'); // Close all MongoDB processes for (const [sessionId, process] of Array.from(this.mongoProcesses)) { try { process.kill(); } catch (error) { this.logger.error( `Error killing MongoDB process for session ${sessionId}:`, error ); } } // Clear all data this.mongoProcesses.clear(); // Call parent cleanup await super.cleanup(); } } export default MongoDBProtocol;