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'; // Redis Client connection options interface RedisConnectionOptions extends SessionOptions { host?: string; port?: number; password?: string; database?: number; username?: string; ssl?: boolean; connectTimeout?: number; sentinelMaster?: string; sentinelHosts?: Array<{ host: string; port: number }>; clusterMode?: boolean; uri?: string; } /** * Redis Protocol Implementation * * Provides Redis database console access through redis-cli * Supports both local and remote Redis connections with authentication */ export class RedisProtocol extends BaseProtocol { public readonly type: ConsoleType = 'redis'; public readonly capabilities: ProtocolCapabilities; private redisProcesses = new Map<string, ChildProcess>(); constructor() { super('redis'); 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'], platformSupport: { windows: true, linux: true, macos: true, freebsd: true, }, }; } async initialize(): Promise<void> { if (this.isInitialized) return; try { // Check if redis-cli client is available await this.checkRedisClientAvailability(); this.isInitialized = true; this.logger.info( 'Redis protocol initialized with session management fixes' ); } catch (error: any) { this.logger.error('Failed to initialize Redis protocol', error); throw error; } } async createSession(options: SessionOptions): Promise<ConsoleSession> { const sessionId = `redis-${Date.now()}-${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 redisProcess = this.redisProcesses.get(sessionId); if (!redisProcess || !redisProcess.stdin) { throw new Error(`No active Redis connection for session: ${sessionId}`); } redisProcess.stdin.write(input); this.logger.debug( `Sent input to Redis session ${sessionId}: ${input.substring(0, 100)}` ); } async closeSession(sessionId: string): Promise<void> { try { const redisProcess = this.redisProcesses.get(sessionId); if (redisProcess) { redisProcess.kill(); this.redisProcesses.delete(sessionId); } // Clean up base protocol session this.sessions.delete(sessionId); this.outputBuffers.delete(sessionId); this.logger.info(`Redis session ${sessionId} closed`); this.emit('session-closed', { sessionId }); } catch (error) { this.logger.error(`Error closing Redis session ${sessionId}:`, error); throw error; } } async doCreateSession( sessionId: string, options: SessionOptions, sessionState: SessionState ): Promise<ConsoleSession> { if (!this.isInitialized) { await this.initialize(); } const redisOptions = options as RedisConnectionOptions; // Build Redis connection command const redisCommand = this.buildRedisCommand(redisOptions); // Spawn redis-cli process const redisProcess = spawn(redisCommand[0], redisCommand.slice(1), { stdio: ['pipe', 'pipe', 'pipe'], cwd: options.cwd, env: { ...process.env, ...options.env }, }); // Set up output handling redisProcess.stdout?.on('data', (data) => { const output: ConsoleOutput = { sessionId, type: 'stdout', data: data.toString(), timestamp: new Date(), }; this.addToOutputBuffer(sessionId, output); }); redisProcess.stderr?.on('data', (data) => { const output: ConsoleOutput = { sessionId, type: 'stderr', data: data.toString(), timestamp: new Date(), }; this.addToOutputBuffer(sessionId, output); }); redisProcess.on('error', (error) => { this.logger.error(`Redis process error for session ${sessionId}:`, error); this.emit('session-error', { sessionId, error }); }); redisProcess.on('close', (code) => { this.logger.info( `Redis process closed for session ${sessionId} with code ${code}` ); this.markSessionComplete(sessionId, code || 0); }); // Store the process this.redisProcesses.set(sessionId, redisProcess); // Create session object const session: ConsoleSession = { id: sessionId, command: redisCommand[0], args: redisCommand.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( `Redis session ${sessionId} created for ${redisOptions.host || 'localhost'}:${redisOptions.port || 6379}` ); this.emit('session-created', { sessionId, type: 'redis', session }); return session; } private async checkRedisClientAvailability(): Promise<void> { return new Promise((resolve, reject) => { const testProcess = spawn('redis-cli', ['--version'], { stdio: 'pipe' }); testProcess.on('close', (code) => { if (code === 0) { resolve(); } else { reject(new Error('Redis CLI not found. Please install Redis CLI.')); } }); testProcess.on('error', () => { reject(new Error('Redis CLI not found. Please install Redis CLI.')); }); }); } private buildRedisCommand(options: RedisConnectionOptions): string[] { if (options.uri) { return ['redis-cli', '-u', options.uri]; } const command = ['redis-cli']; // Connection parameters if (options.host) { command.push('-h', options.host); } if (options.port) { command.push('-p', options.port.toString()); } if (options.username) { command.push('--user', options.username); } if (options.password) { command.push('-a', options.password); } if (options.database !== undefined) { command.push('-n', options.database.toString()); } if (options.ssl) { command.push('--tls'); } // Interactive mode command.push('-i'); return command; } async cleanup(): Promise<void> { this.logger.info('Cleaning up Redis protocol'); // Close all Redis processes for (const [sessionId, process] of Array.from(this.redisProcesses)) { try { process.kill(); } catch (error) { this.logger.error( `Error killing Redis process for session ${sessionId}:`, error ); } } // Clear all data this.redisProcesses.clear(); // Call parent cleanup await super.cleanup(); } } export default RedisProtocol;