vibetunnel
Version:
Terminal sharing server with web interface - supports macOS, Linux, and headless environments
376 lines • 40.5 kB
JavaScript
"use strict";
/**
* Client for connecting to VibeTunnel Unix sockets
*/
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
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desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
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__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.VibeTunnelSocketClient = void 0;
const events_1 = require("events");
const net = __importStar(require("net"));
const logger_js_1 = require("../utils/logger.js");
const socket_protocol_js_1 = require("./socket-protocol.js");
const logger = (0, logger_js_1.createLogger)('socket-client');
/**
* Unix socket client for communication between VibeTunnel web server and terminal processes.
*
* This class provides a robust client for connecting to Unix domain sockets with automatic
* reconnection, heartbeat support, and message parsing using the VibeTunnel socket protocol.
* It handles terminal control operations like stdin input, resizing, and process management.
*
* Key features:
* - Automatic reconnection with configurable delay
* - Heartbeat mechanism to detect connection health
* - Binary message protocol with length-prefixed framing
* - Event-based API for handling connection state and messages
* - macOS socket path length validation (104 char limit)
*
* @example
* ```typescript
* // Create a client for a terminal session
* const client = new VibeTunnelSocketClient('/tmp/vibetunnel/session-123.sock', {
* autoReconnect: true,
* heartbeatInterval: 30000
* });
*
* // Listen for events
* client.on('connect', () => console.log('Connected to terminal'));
* client.on('status', (status) => console.log('Terminal status:', status));
* client.on('error', (error) => console.error('Socket error:', error));
*
* // Connect and send commands
* await client.connect();
* client.sendStdin('ls -la\n');
* client.resize(80, 24);
* ```
*
* @extends EventEmitter
*/
class VibeTunnelSocketClient extends events_1.EventEmitter {
constructor(socketPath, options = {}) {
super();
this.socketPath = socketPath;
this.options = options;
this.parser = new socket_protocol_js_1.MessageParser();
this.connected = false;
this.reconnectDelay = 1000;
this.lastHeartbeat = Date.now();
// IMPORTANT: macOS has a 104 character limit for Unix socket paths
// If you get EINVAL errors when connecting, the path is likely too long
if (socketPath.length > 103) {
logger.warn(`Socket path may be too long (${socketPath.length} chars): ${socketPath}`);
}
}
/**
* Connect to the socket
*/
connect() {
return new Promise((resolve, reject) => {
if (this.connected) {
resolve();
return;
}
this.socket = net.createConnection(this.socketPath);
this.socket.setNoDelay(true);
this.socket.setKeepAlive(true, 0);
const onConnect = () => {
this.connected = true;
this.setupSocketHandlers();
this.emit('connect');
this.startHeartbeat();
cleanup();
resolve();
};
const onError = (error) => {
cleanup();
// Destroy the socket to prevent further errors
this.socket?.destroy();
this.socket = undefined;
reject(error);
};
const cleanup = () => {
this.socket?.off('connect', onConnect);
this.socket?.off('error', onError);
};
this.socket.once('connect', onConnect);
this.socket.once('error', onError);
});
}
/**
* Setup socket event handlers
*/
setupSocketHandlers() {
if (!this.socket)
return;
this.socket.on('data', (chunk) => {
this.parser.addData(chunk);
for (const { type, payload } of this.parser.parseMessages()) {
this.handleMessage(type, payload);
}
});
this.socket.on('close', () => {
this.handleDisconnect();
});
this.socket.on('error', (error) => {
logger.error(`Socket error on ${this.socketPath}:`, error);
this.emit('error', error);
});
}
/**
* Handle incoming messages
*/
handleMessage(type, payload) {
try {
const data = (0, socket_protocol_js_1.parsePayload)(type, payload);
// Emit event with message type enum name
this.emit(socket_protocol_js_1.MessageType[type], data);
// Handle heartbeat
if (type === socket_protocol_js_1.MessageType.HEARTBEAT) {
this.lastHeartbeat = Date.now();
// Echo heartbeat back
this.sendHeartbeat();
}
}
catch (error) {
logger.error('Failed to parse message:', error);
}
}
/**
* Handle disconnection
*/
handleDisconnect(error) {
this.connected = false;
this.stopHeartbeat();
this.emit('disconnect', error);
if (this.options.autoReconnect && !this.reconnectTimer) {
this.reconnectTimer = setTimeout(() => {
this.reconnectTimer = undefined;
this.connect().catch((err) => {
logger.debug(`Reconnection failed: ${err.message}`);
this.handleDisconnect(err);
});
}, this.reconnectDelay);
}
}
/**
* Start heartbeat
*/
startHeartbeat() {
if (this.options.heartbeatInterval) {
this.heartbeatInterval = setInterval(() => {
this.sendHeartbeat();
}, this.options.heartbeatInterval);
}
}
/**
* Stop heartbeat
*/
stopHeartbeat() {
if (this.heartbeatInterval) {
clearInterval(this.heartbeatInterval);
this.heartbeatInterval = undefined;
}
}
/**
* Send data to stdin
*/
sendStdin(data) {
return this.send(socket_protocol_js_1.MessageBuilder.stdin(data));
}
/**
* Send resize command
*/
resize(cols, rows) {
return this.send(socket_protocol_js_1.MessageBuilder.resize(cols, rows));
}
/**
* Send kill command
*/
kill(signal) {
return this.send(socket_protocol_js_1.MessageBuilder.kill(signal));
}
/**
* Send reset size command
*/
resetSize() {
return this.send(socket_protocol_js_1.MessageBuilder.resetSize());
}
/**
* Send update title command
*/
updateTitle(title) {
return this.send(socket_protocol_js_1.MessageBuilder.updateTitle(title));
}
/**
* Send status update
*/
sendStatus(app, status, extra) {
return this.send(socket_protocol_js_1.MessageBuilder.status(app, status, extra));
}
/**
* Send a message with type-safe payload
*/
sendMessage(type, payload) {
const message = this.buildMessage(type, payload);
return this.send(message);
}
/**
* Send a message and wait for a response
*/
async sendMessageWithResponse(requestType, payload, responseType, timeout = 5000) {
return new Promise((resolve, reject) => {
const timer = setTimeout(() => {
this.off(socket_protocol_js_1.MessageType[responseType], handleResponse);
this.off('error', handleError);
reject(new Error(`Request timeout waiting for ${socket_protocol_js_1.MessageType[responseType]}`));
}, timeout);
const handleResponse = (data) => {
clearTimeout(timer);
this.off('error', handleError);
resolve(data);
};
const handleError = (error) => {
clearTimeout(timer);
this.off(socket_protocol_js_1.MessageType[responseType], handleResponse);
if ('message' in error) {
reject(new Error(error.message));
}
else {
reject(error);
}
};
// Listen for response
this.once(socket_protocol_js_1.MessageType[responseType], handleResponse);
this.once('error', handleError);
const sent = this.sendMessage(requestType, payload);
if (!sent) {
clearTimeout(timer);
this.off(socket_protocol_js_1.MessageType[responseType], handleResponse);
this.off('error', handleError);
reject(new Error('Failed to send message'));
}
});
}
/**
* Build a message buffer from type and payload
*/
buildMessage(type, payload) {
switch (type) {
case socket_protocol_js_1.MessageType.STDIN_DATA:
return socket_protocol_js_1.MessageBuilder.stdin(payload);
case socket_protocol_js_1.MessageType.CONTROL_CMD: {
const cmd = payload;
switch (cmd.cmd) {
case 'resize':
return socket_protocol_js_1.MessageBuilder.resize(cmd.cols, cmd.rows);
case 'kill':
return socket_protocol_js_1.MessageBuilder.kill(cmd.signal);
case 'reset-size':
return socket_protocol_js_1.MessageBuilder.resetSize();
case 'update-title':
return socket_protocol_js_1.MessageBuilder.updateTitle(cmd.title);
default:
// For generic control commands, use frameMessage directly
return (0, socket_protocol_js_1.frameMessage)(socket_protocol_js_1.MessageType.CONTROL_CMD, cmd);
}
}
case socket_protocol_js_1.MessageType.STATUS_UPDATE: {
const statusPayload = payload;
return socket_protocol_js_1.MessageBuilder.status(statusPayload.app, statusPayload.status, statusPayload.extra);
}
case socket_protocol_js_1.MessageType.HEARTBEAT:
return socket_protocol_js_1.MessageBuilder.heartbeat();
case socket_protocol_js_1.MessageType.STATUS_REQUEST:
return socket_protocol_js_1.MessageBuilder.statusRequest();
case socket_protocol_js_1.MessageType.GIT_FOLLOW_REQUEST:
return socket_protocol_js_1.MessageBuilder.gitFollowRequest(payload);
case socket_protocol_js_1.MessageType.GIT_EVENT_NOTIFY:
return socket_protocol_js_1.MessageBuilder.gitEventNotify(payload);
default:
throw new Error(`Unsupported message type: ${type}`);
}
}
/**
* Send heartbeat
*/
sendHeartbeat() {
return this.send(socket_protocol_js_1.MessageBuilder.heartbeat());
}
/**
* Send raw message
*/
send(message) {
if (!this.connected || !this.socket) {
logger.debug('Cannot send message: not connected');
return false;
}
try {
return this.socket.write(message);
}
catch (error) {
logger.error('Failed to send message:', error);
return false;
}
}
/**
* Disconnect from the socket
*/
disconnect() {
this.options.autoReconnect = false;
this.connected = false;
this.stopHeartbeat();
if (this.reconnectTimer) {
clearTimeout(this.reconnectTimer);
this.reconnectTimer = undefined;
}
if (this.socket) {
this.socket.destroy();
this.socket = undefined;
}
}
/**
* Check if connected
*/
isConnected() {
return this.connected;
}
/**
* Get time since last heartbeat
*/
getTimeSinceLastHeartbeat() {
return Date.now() - this.lastHeartbeat;
}
}
exports.VibeTunnelSocketClient = VibeTunnelSocketClient;
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* Client for connecting to VibeTunnel Unix sockets\n */\n\nimport { EventEmitter } from 'events';\nimport * as net from 'net';\nimport { createLogger } from '../utils/logger.js';\nimport {\n  type ControlCommand,\n  type ErrorMessage,\n  frameMessage,\n  type GitEventNotify,\n  type GitFollowRequest,\n  type KillCommand,\n  MessageBuilder,\n  MessageParser,\n  type MessagePayload,\n  MessageType,\n  parsePayload,\n  type ResizeCommand,\n  type StatusUpdate,\n  type UpdateTitleCommand,\n} from './socket-protocol.js';\n\nconst logger = createLogger('socket-client');\n\nexport interface SocketClientEvents {\n  connect: () => void;\n  disconnect: (error?: Error) => void;\n  error: (error: Error) => void;\n  // Message-specific events are emitted using MessageType enum names\n  // e.g., 'STATUS_UPDATE', 'ERROR', 'HEARTBEAT', etc.\n}\n\n/**\n * Unix socket client for communication between VibeTunnel web server and terminal processes.\n *\n * This class provides a robust client for connecting to Unix domain sockets with automatic\n * reconnection, heartbeat support, and message parsing using the VibeTunnel socket protocol.\n * It handles terminal control operations like stdin input, resizing, and process management.\n *\n * Key features:\n * - Automatic reconnection with configurable delay\n * - Heartbeat mechanism to detect connection health\n * - Binary message protocol with length-prefixed framing\n * - Event-based API for handling connection state and messages\n * - macOS socket path length validation (104 char limit)\n *\n * @example\n * ```typescript\n * // Create a client for a terminal session\n * const client = new VibeTunnelSocketClient('/tmp/vibetunnel/session-123.sock', {\n *   autoReconnect: true,\n *   heartbeatInterval: 30000\n * });\n *\n * // Listen for events\n * client.on('connect', () => console.log('Connected to terminal'));\n * client.on('status', (status) => console.log('Terminal status:', status));\n * client.on('error', (error) => console.error('Socket error:', error));\n *\n * // Connect and send commands\n * await client.connect();\n * client.sendStdin('ls -la\\n');\n * client.resize(80, 24);\n * ```\n *\n * @extends EventEmitter\n */\nexport class VibeTunnelSocketClient extends EventEmitter {\n  private socket?: net.Socket;\n  private parser = new MessageParser();\n  private connected = false;\n  private reconnectTimer?: NodeJS.Timeout;\n  private readonly reconnectDelay = 1000;\n  private heartbeatInterval?: NodeJS.Timeout;\n  private lastHeartbeat = Date.now();\n\n  constructor(\n    private readonly socketPath: string,\n    private readonly options: {\n      autoReconnect?: boolean;\n      heartbeatInterval?: number;\n    } = {}\n  ) {\n    super();\n\n    // IMPORTANT: macOS has a 104 character limit for Unix socket paths\n    // If you get EINVAL errors when connecting, the path is likely too long\n    if (socketPath.length > 103) {\n      logger.warn(`Socket path may be too long (${socketPath.length} chars): ${socketPath}`);\n    }\n  }\n\n  /**\n   * Connect to the socket\n   */\n  connect(): Promise<void> {\n    return new Promise((resolve, reject) => {\n      if (this.connected) {\n        resolve();\n        return;\n      }\n\n      this.socket = net.createConnection(this.socketPath);\n      this.socket.setNoDelay(true);\n      this.socket.setKeepAlive(true, 0);\n\n      const onConnect = () => {\n        this.connected = true;\n        this.setupSocketHandlers();\n        this.emit('connect');\n        this.startHeartbeat();\n        cleanup();\n        resolve();\n      };\n\n      const onError = (error: Error) => {\n        cleanup();\n        // Destroy the socket to prevent further errors\n        this.socket?.destroy();\n        this.socket = undefined;\n        reject(error);\n      };\n\n      const cleanup = () => {\n        this.socket?.off('connect', onConnect);\n        this.socket?.off('error', onError);\n      };\n\n      this.socket.once('connect', onConnect);\n      this.socket.once('error', onError);\n    });\n  }\n\n  /**\n   * Setup socket event handlers\n   */\n  private setupSocketHandlers(): void {\n    if (!this.socket) return;\n\n    this.socket.on('data', (chunk) => {\n      this.parser.addData(chunk);\n\n      for (const { type, payload } of this.parser.parseMessages()) {\n        this.handleMessage(type, payload);\n      }\n    });\n\n    this.socket.on('close', () => {\n      this.handleDisconnect();\n    });\n\n    this.socket.on('error', (error) => {\n      logger.error(`Socket error on ${this.socketPath}:`, error);\n      this.emit('error', error);\n    });\n  }\n\n  /**\n   * Handle incoming messages\n   */\n  private handleMessage(type: MessageType, payload: Buffer): void {\n    try {\n      const data = parsePayload(type, payload);\n\n      // Emit event with message type enum name\n      this.emit(MessageType[type], data);\n\n      // Handle heartbeat\n      if (type === MessageType.HEARTBEAT) {\n        this.lastHeartbeat = Date.now();\n        // Echo heartbeat back\n        this.sendHeartbeat();\n      }\n    } catch (error) {\n      logger.error('Failed to parse message:', error);\n    }\n  }\n\n  /**\n   * Handle disconnection\n   */\n  private handleDisconnect(error?: Error): void {\n    this.connected = false;\n    this.stopHeartbeat();\n    this.emit('disconnect', error);\n\n    if (this.options.autoReconnect && !this.reconnectTimer) {\n      this.reconnectTimer = setTimeout(() => {\n        this.reconnectTimer = undefined;\n        this.connect().catch((err) => {\n          logger.debug(`Reconnection failed: ${err.message}`);\n          this.handleDisconnect(err);\n        });\n      }, this.reconnectDelay);\n    }\n  }\n\n  /**\n   * Start heartbeat\n   */\n  private startHeartbeat(): void {\n    if (this.options.heartbeatInterval) {\n      this.heartbeatInterval = setInterval(() => {\n        this.sendHeartbeat();\n      }, this.options.heartbeatInterval);\n    }\n  }\n\n  /**\n   * Stop heartbeat\n   */\n  private stopHeartbeat(): void {\n    if (this.heartbeatInterval) {\n      clearInterval(this.heartbeatInterval);\n      this.heartbeatInterval = undefined;\n    }\n  }\n\n  /**\n   * Send data to stdin\n   */\n  sendStdin(data: string): boolean {\n    return this.send(MessageBuilder.stdin(data));\n  }\n\n  /**\n   * Send resize command\n   */\n  resize(cols: number, rows: number): boolean {\n    return this.send(MessageBuilder.resize(cols, rows));\n  }\n\n  /**\n   * Send kill command\n   */\n  kill(signal?: string | number): boolean {\n    return this.send(MessageBuilder.kill(signal));\n  }\n\n  /**\n   * Send reset size command\n   */\n  resetSize(): boolean {\n    return this.send(MessageBuilder.resetSize());\n  }\n\n  /**\n   * Send update title command\n   */\n  updateTitle(title: string): boolean {\n    return this.send(MessageBuilder.updateTitle(title));\n  }\n\n  /**\n   * Send status update\n   */\n  sendStatus(app: string, status: string, extra?: Record<string, unknown>): boolean {\n    return this.send(MessageBuilder.status(app, status, extra));\n  }\n\n  /**\n   * Send a message with type-safe payload\n   */\n  public sendMessage<T extends MessageType>(type: T, payload: MessagePayload<T>): boolean {\n    const message = this.buildMessage(type, payload);\n    return this.send(message);\n  }\n\n  /**\n   * Send a message and wait for a response\n   */\n  public async sendMessageWithResponse<TRequest extends MessageType, TResponse extends MessageType>(\n    requestType: TRequest,\n    payload: MessagePayload<TRequest>,\n    responseType: TResponse,\n    timeout = 5000\n  ): Promise<MessagePayload<TResponse>> {\n    return new Promise((resolve, reject) => {\n      const timer = setTimeout(() => {\n        this.off(MessageType[responseType], handleResponse);\n        this.off('error', handleError);\n        reject(new Error(`Request timeout waiting for ${MessageType[responseType]}`));\n      }, timeout);\n\n      const handleResponse = (data: MessagePayload<TResponse>) => {\n        clearTimeout(timer);\n        this.off('error', handleError);\n        resolve(data);\n      };\n\n      const handleError = (error: Error | ErrorMessage) => {\n        clearTimeout(timer);\n        this.off(MessageType[responseType], handleResponse);\n        if ('message' in error) {\n          reject(new Error(error.message));\n        } else {\n          reject(error);\n        }\n      };\n\n      // Listen for response\n      this.once(MessageType[responseType], handleResponse);\n      this.once('error', handleError);\n\n      const sent = this.sendMessage(requestType, payload);\n      if (!sent) {\n        clearTimeout(timer);\n        this.off(MessageType[responseType], handleResponse);\n        this.off('error', handleError);\n        reject(new Error('Failed to send message'));\n      }\n    });\n  }\n\n  /**\n   * Build a message buffer from type and payload\n   */\n  private buildMessage<T extends MessageType>(type: T, payload: MessagePayload<T>): Buffer {\n    switch (type) {\n      case MessageType.STDIN_DATA:\n        return MessageBuilder.stdin(payload as string);\n      case MessageType.CONTROL_CMD: {\n        const cmd = payload as ControlCommand;\n        switch (cmd.cmd) {\n          case 'resize':\n            return MessageBuilder.resize((cmd as ResizeCommand).cols, (cmd as ResizeCommand).rows);\n          case 'kill':\n            return MessageBuilder.kill((cmd as KillCommand).signal);\n          case 'reset-size':\n            return MessageBuilder.resetSize();\n          case 'update-title':\n            return MessageBuilder.updateTitle((cmd as UpdateTitleCommand).title);\n          default:\n            // For generic control commands, use frameMessage directly\n            return frameMessage(MessageType.CONTROL_CMD, cmd);\n        }\n      }\n      case MessageType.STATUS_UPDATE: {\n        const statusPayload = payload as StatusUpdate;\n        return MessageBuilder.status(\n          statusPayload.app,\n          statusPayload.status,\n          statusPayload.extra as Record<string, unknown> | undefined\n        );\n      }\n      case MessageType.HEARTBEAT:\n        return MessageBuilder.heartbeat();\n      case MessageType.STATUS_REQUEST:\n        return MessageBuilder.statusRequest();\n      case MessageType.GIT_FOLLOW_REQUEST:\n        return MessageBuilder.gitFollowRequest(payload as GitFollowRequest);\n      case MessageType.GIT_EVENT_NOTIFY:\n        return MessageBuilder.gitEventNotify(payload as GitEventNotify);\n      default:\n        throw new Error(`Unsupported message type: ${type}`);\n    }\n  }\n\n  /**\n   * Send heartbeat\n   */\n  private sendHeartbeat(): boolean {\n    return this.send(MessageBuilder.heartbeat());\n  }\n\n  /**\n   * Send raw message\n   */\n  private send(message: Buffer): boolean {\n    if (!this.connected || !this.socket) {\n      logger.debug('Cannot send message: not connected');\n      return false;\n    }\n\n    try {\n      return this.socket.write(message);\n    } catch (error) {\n      logger.error('Failed to send message:', error);\n      return false;\n    }\n  }\n\n  /**\n   * Disconnect from the socket\n   */\n  disconnect(): void {\n    this.options.autoReconnect = false;\n    this.connected = false;\n    this.stopHeartbeat();\n\n    if (this.reconnectTimer) {\n      clearTimeout(this.reconnectTimer);\n      this.reconnectTimer = undefined;\n    }\n\n    if (this.socket) {\n      this.socket.destroy();\n      this.socket = undefined;\n    }\n  }\n\n  /**\n   * Check if connected\n   */\n  isConnected(): boolean {\n    return this.connected;\n  }\n\n  /**\n   * Get time since last heartbeat\n   */\n  getTimeSinceLastHeartbeat(): number {\n    return Date.now() - this.lastHeartbeat;\n  }\n}\n"]}