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, ProtocolHealthStatus, ErrorRecoveryResult, ResourceUsage, } from '../core/IProtocol.js'; // .NET Protocol connection options interface DotNetConnectionOptions extends SessionOptions { dotnetPath?: string; dotnetVersion?: string; projectFile?: string; solutionFile?: string; assemblyPath?: string; framework?: string; configuration?: 'Debug' | 'Release'; runtime?: string; enableWatch?: boolean; enableHotReload?: boolean; aspNetCore?: boolean; entityFramework?: boolean; enableDebug?: boolean; debugPort?: number; verbosity?: 'quiet' | 'minimal' | 'normal' | 'detailed' | 'diagnostic'; buildFlags?: string[]; runFlags?: string[]; testFlags?: string[]; environment?: Record<string, string>; enableProfiling?: boolean; profilingTool?: 'dotnet-trace' | 'dotnet-dump' | 'dotnet-counters'; enableNuget?: boolean; nugetSource?: string[]; packageRestore?: boolean; selfContained?: boolean; singleFile?: boolean; trimmed?: boolean; aot?: boolean; dockerize?: boolean; dockerImage?: string; } /** * .NET Protocol Implementation * * Provides .NET development environment console access through dotnet command * Supports building, running, testing, debugging, ASP.NET Core, Entity Framework, and NuGet */ export class DotNetProtocol extends BaseProtocol { public readonly type: ConsoleType = 'dotnet'; public readonly capabilities: ProtocolCapabilities; private dotnetProcesses = new Map<string, ChildProcess>(); // Compatibility property for old ProtocolFactory interface public get healthStatus(): ProtocolHealthStatus { return { isHealthy: this.isInitialized, lastChecked: new Date(), errors: [], warnings: [], metrics: { activeSessions: this.sessions.size, totalSessions: this.sessions.size, averageLatency: 0, successRate: 100, uptime: 0, }, dependencies: {}, }; } constructor() { super('dotnet'); this.capabilities = { supportsStreaming: true, supportsFileTransfer: false, supportsX11Forwarding: false, supportsPortForwarding: false, supportsAuthentication: false, supportsEncryption: false, supportsCompression: false, supportsMultiplexing: false, supportsKeepAlive: true, supportsReconnection: true, supportsBinaryData: false, supportsCustomEnvironment: true, supportsWorkingDirectory: true, supportsSignals: true, supportsResizing: false, supportsPTY: true, maxConcurrentSessions: 20, defaultTimeout: 60000, // .NET builds can take longer supportedEncodings: ['utf-8'], supportedAuthMethods: [], platformSupport: { windows: true, linux: true, macos: true, freebsd: true, }, }; } async initialize(): Promise<void> { if (this.isInitialized) return; try { // Check if .NET is available await this.checkDotNetAvailability(); this.isInitialized = true; this.logger.info('.NET protocol initialized with production features'); } catch (error: any) { this.logger.error('Failed to initialize .NET protocol', error); throw error; } } async createSession(options: SessionOptions): Promise<ConsoleSession> { const sessionId = `dotnet-${Date.now()}-${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 dotnetProcess = this.dotnetProcesses.get(sessionId); const session = this.sessions.get(sessionId); if (!dotnetProcess || !dotnetProcess.stdin || !session) { throw new Error(`No active .NET session: ${sessionId}`); } dotnetProcess.stdin.write(input); session.lastActivity = new Date(); this.emit('input-sent', { sessionId, input, timestamp: new Date(), }); this.logger.debug( `Sent input to .NET session ${sessionId}: ${input.substring(0, 100)}` ); } async closeSession(sessionId: string): Promise<void> { try { const dotnetProcess = this.dotnetProcesses.get(sessionId); if (dotnetProcess) { // Try graceful shutdown first dotnetProcess.kill('SIGTERM'); // Force kill after timeout setTimeout(() => { if (dotnetProcess && !dotnetProcess.killed) { dotnetProcess.kill('SIGKILL'); } }, 5000); this.dotnetProcesses.delete(sessionId); } // Clean up base protocol session this.sessions.delete(sessionId); this.logger.info(`.NET session ${sessionId} closed`); this.emit('session-closed', sessionId); } catch (error) { this.logger.error(`Error closing .NET session ${sessionId}:`, error); throw error; } } async doCreateSession( sessionId: string, options: SessionOptions, sessionState: SessionState ): Promise<ConsoleSession> { if (!this.isInitialized) { await this.initialize(); } const dotnetOptions = options as DotNetConnectionOptions; // Build .NET command const dotnetCommand = this.buildDotNetCommand(dotnetOptions); // Spawn .NET process const dotnetProcess = spawn(dotnetCommand[0], dotnetCommand.slice(1), { stdio: ['pipe', 'pipe', 'pipe'], cwd: options.cwd || process.cwd(), env: { ...process.env, ...this.buildEnvironment(dotnetOptions), ...options.env, }, }); // Set up output handling dotnetProcess.stdout?.on('data', (data) => { const output: ConsoleOutput = { sessionId, type: 'stdout', data: data.toString(), timestamp: new Date(), }; this.addToOutputBuffer(sessionId, output); }); dotnetProcess.stderr?.on('data', (data) => { const output: ConsoleOutput = { sessionId, type: 'stderr', data: data.toString(), timestamp: new Date(), }; this.addToOutputBuffer(sessionId, output); }); dotnetProcess.on('error', (error) => { this.logger.error(`.NET process error for session ${sessionId}:`, error); this.emit('session-error', { sessionId, error }); }); dotnetProcess.on('close', (code) => { this.logger.info( `.NET process closed for session ${sessionId} with code ${code}` ); this.markSessionComplete(sessionId, code || 0); }); // Store the process this.dotnetProcesses.set(sessionId, dotnetProcess); // Create session object const session: ConsoleSession = { id: sessionId, command: dotnetCommand[0], args: dotnetCommand.slice(1), cwd: options.cwd || process.cwd(), env: { ...process.env, ...this.buildEnvironment(dotnetOptions), ...options.env, }, createdAt: new Date(), lastActivity: new Date(), status: 'running', type: this.type, streaming: options.streaming, executionState: 'idle', activeCommands: new Map(), pid: dotnetProcess.pid, }; this.sessions.set(sessionId, session); this.logger.info( `.NET session ${sessionId} created for ${dotnetOptions.projectFile || dotnetOptions.solutionFile || dotnetOptions.assemblyPath || '.NET application'}` ); this.emit('session-created', { sessionId, type: 'dotnet', session }); return session; } // Override getOutput to satisfy old ProtocolFactory interface (returns string) async getOutput(sessionId: string, since?: Date): Promise<any> { const outputs = await super.getOutput(sessionId, since); return outputs.map((output) => output.data).join(''); } // Missing IProtocol methods for compatibility getAllSessions(): ConsoleSession[] { return Array.from(this.sessions.values()); } getActiveSessions(): ConsoleSession[] { return Array.from(this.sessions.values()).filter( (session) => session.status === 'running' ); } getSessionCount(): number { return this.sessions.size; } async getSessionState(sessionId: string): Promise<SessionState> { const session = this.sessions.get(sessionId); if (!session) { throw new Error(`Session ${sessionId} not found`); } return { sessionId, status: session.status, isOneShot: true, // .NET builds are typically one-shot unless running a server isPersistent: false, createdAt: session.createdAt, lastActivity: session.lastActivity, pid: session.pid, metadata: {}, }; } async handleError( error: Error, context: ErrorContext ): Promise<ErrorRecoveryResult> { this.logger.error( `Error in .NET session ${context.sessionId}: ${error.message}` ); return { recovered: false, strategy: 'none', attempts: 0, duration: 0, error: error.message, }; } async recoverSession(sessionId: string): Promise<boolean> { const dotnetProcess = this.dotnetProcesses.get(sessionId); return (dotnetProcess && !dotnetProcess.killed) || false; } getResourceUsage(): ResourceUsage { const memUsage = process.memoryUsage(); const cpuUsage = process.cpuUsage(); return { memory: { used: memUsage.heapUsed, available: memUsage.heapTotal, peak: memUsage.heapTotal, }, cpu: { usage: cpuUsage.user + cpuUsage.system, load: [0, 0, 0], }, network: { bytesIn: 0, bytesOut: 0, connectionsActive: this.dotnetProcesses.size, }, storage: { bytesRead: 0, bytesWritten: 0, }, sessions: { active: this.sessions.size, total: this.sessions.size, peak: this.sessions.size, }, }; } async getHealthStatus(): Promise<ProtocolHealthStatus> { const baseStatus = await super.getHealthStatus(); try { await this.checkDotNetAvailability(); return { ...baseStatus, dependencies: { dotnet: { available: true }, }, }; } catch (error) { return { ...baseStatus, isHealthy: false, errors: [...baseStatus.errors, `.NET not available: ${error}`], dependencies: { dotnet: { available: false }, }, }; } } private async checkDotNetAvailability(): Promise<void> { return new Promise((resolve, reject) => { const testProcess = spawn('dotnet', ['--version'], { stdio: 'pipe' }); testProcess.on('close', (code) => { if (code === 0) { resolve(); } else { reject(new Error('.NET SDK not found. Please install .NET SDK.')); } }); testProcess.on('error', () => { reject(new Error('.NET SDK not found. Please install .NET SDK.')); }); }); } private buildDotNetCommand(options: DotNetConnectionOptions): string[] { const command = []; // .NET executable if (options.dotnetPath) { command.push(options.dotnetPath); } else { command.push('dotnet'); } // Determine the .NET subcommand if (options.projectFile || options.solutionFile) { // Building/running project or solution if (options.enableWatch) { command.push('watch'); command.push('run'); } else { command.push('run'); } // Project/solution file if (options.projectFile) { command.push('--project', options.projectFile); } else if (options.solutionFile) { command.push('--', options.solutionFile); } // Framework if (options.framework) { command.push('--framework', options.framework); } // Configuration if (options.configuration) { command.push('--configuration', options.configuration); } // Runtime if (options.runtime) { command.push('--runtime', options.runtime); } // Self-contained if (options.selfContained) { command.push('--self-contained'); } // Verbosity if (options.verbosity) { command.push('--verbosity', options.verbosity); } // Build flags if (options.buildFlags) { command.push(...options.buildFlags); } } else if (options.assemblyPath) { // Running compiled assembly directly command.push(options.assemblyPath); } else { // Default to --info if nothing specified command.push('--info'); } // Application arguments if (options.args) { command.push('--'); command.push(...options.args); } return command; } private buildEnvironment( options: DotNetConnectionOptions ): Record<string, string> { const env: Record<string, string> = {}; // .NET environment variables if (options.dotnetVersion) { env.DOTNET_VERSION = options.dotnetVersion; } // ASP.NET Core settings if (options.aspNetCore) { env.ASPNETCORE_ENVIRONMENT = env.ASPNETCORE_ENVIRONMENT || 'Development'; if (options.enableHotReload) { env.DOTNET_WATCH_RESTART_ON_RUDE_EDIT = 'true'; } } // Entity Framework settings if (options.entityFramework) { env.ASPNETCORE_ENVIRONMENT = env.ASPNETCORE_ENVIRONMENT || 'Development'; } // Debug settings if (options.enableDebug && options.debugPort) { env.ASPNETCORE_URLS = `http://localhost:${options.debugPort}`; } // NuGet settings if (options.enableNuget && options.nugetSource) { env.NUGET_SOURCES = options.nugetSource.join(';'); } // Runtime settings if (options.runtime) { env.DOTNET_RUNTIME_IDENTIFIER = options.runtime; } // Profiling if (options.enableProfiling) { env.DOTNET_EnableDiagnostics = '1'; if (options.profilingTool) { env.DOTNET_DiagnosticPorts = '/tmp/dotnet-diagnostic.sock'; } } // AOT and trimming if (options.aot) { env.DOTNET_PublishAot = 'true'; } if (options.trimmed) { env.DOTNET_PublishTrimmed = 'true'; } if (options.singleFile) { env.DOTNET_PublishSingleFile = 'true'; } // Docker settings if (options.dockerize && options.dockerImage) { env.DOTNET_DOCKER_IMAGE = options.dockerImage; } // Custom environment variables if (options.environment) { Object.assign(env, options.environment); } return env; } async cleanup(): Promise<void> { this.logger.info('Cleaning up .NET protocol'); // Close all .NET processes for (const [sessionId, process] of Array.from(this.dotnetProcesses)) { try { process.kill(); } catch (error) { this.logger.error( `Error killing .NET process for session ${sessionId}:`, error ); } } // Clear all data this.dotnetProcesses.clear(); // Call parent cleanup await super.cleanup(); } } export default DotNetProtocol;