vibetunnel/web/src/server/pty/pty-manager.ts
Peter Steinberger d75e2ffd76 Restore attachedViaVT property to distinguish VibeTunnel sessions
- Add attachedViaVT to SessionInfo interface to identify nested sessions
- Set attachedViaVT=true when VIBETUNNEL_SESSION_ID env var is present
- Add property to Swift ServerSessionInfo for API compatibility
- Allows distinguishing between direct terminal sessions and those spawned from within VibeTunnel
2025-07-27 15:48:44 +02:00

2646 lines
92 KiB
TypeScript

/**
* PtyManager - Core PTY management using node-pty
*
* This class handles PTY creation, process management, and I/O operations
* using the node-pty library while maintaining compatibility with tty-fwd.
*/
import chalk from 'chalk';
import { exec } from 'child_process';
import { EventEmitter, once } from 'events';
import * as fs from 'fs';
import * as net from 'net';
import type { IPty, IPtyForkOptions } from 'node-pty';
import * as path from 'path';
// Import node-pty with fallback support
let pty: typeof import('node-pty');
// Dynamic import will be done in initialization
import { promisify } from 'util';
import { v4 as uuidv4 } from 'uuid';
import type {
Session,
SessionCreateOptions,
SessionInfo,
SessionInput,
SpecialKey,
} from '../../shared/types.js';
import { TitleMode } from '../../shared/types.js';
import { ProcessTreeAnalyzer } from '../services/process-tree-analyzer.js';
import { ActivityDetector, type ActivityState } from '../utils/activity-detector.js';
import { TitleSequenceFilter } from '../utils/ansi-title-filter.js';
import { createLogger } from '../utils/logger.js';
import {
extractCdDirectory,
generateDynamicTitle,
generateTitleSequence,
shouldInjectTitle,
} from '../utils/terminal-title.js';
import { WriteQueue } from '../utils/write-queue.js';
import { VERSION } from '../version.js';
import { controlUnixHandler } from '../websocket/control-unix-handler.js';
import { AsciinemaWriter } from './asciinema-writer.js';
import { FishHandler } from './fish-handler.js';
import { ProcessUtils } from './process-utils.js';
import { SessionManager } from './session-manager.js';
import {
type ControlCommand,
frameMessage,
MessageParser,
MessageType,
parsePayload,
} from './socket-protocol.js';
import {
type KillControlMessage,
PtyError,
type PtySession,
type ResetSizeControlMessage,
type ResizeControlMessage,
type SessionCreationResult,
} from './types.js';
const logger = createLogger('pty-manager');
// Title injection timing constants
const TITLE_UPDATE_INTERVAL_MS = 1000; // How often to check if title needs updating
const TITLE_INJECTION_QUIET_PERIOD_MS = 50; // Minimum quiet period before injecting title
const TITLE_INJECTION_CHECK_INTERVAL_MS = 10; // How often to check for quiet period
// Foreground process tracking constants
const PROCESS_POLL_INTERVAL_MS = 500; // How often to check foreground process
const MIN_COMMAND_DURATION_MS = 3000; // Minimum duration for command completion notifications (3 seconds)
const SHELL_COMMANDS = new Set(['cd', 'ls', 'pwd', 'echo', 'export', 'alias', 'unset']); // Built-in commands to ignore
/**
* PtyManager handles the lifecycle and I/O operations of pseudo-terminal (PTY) sessions.
*
* This class provides comprehensive terminal session management including:
* - Creating and managing PTY processes using node-pty
* - Handling terminal input/output with proper buffering and queuing
* - Managing terminal resizing from both browser and host terminal
* - Recording sessions in asciinema format for playback
* - Communicating with external sessions via Unix domain sockets
* - Dynamic terminal title management with activity detection
* - Session persistence and recovery across server restarts
*
* The PtyManager supports both in-memory sessions (where the PTY is managed directly)
* and external sessions (where communication happens via IPC sockets).
*
* @extends EventEmitter
*
* @fires PtyManager#sessionExited - When a session terminates
* @fires PtyManager#sessionNameChanged - When a session name is updated
* @fires PtyManager#bell - When a bell character is detected in terminal output
*
* @example
* ```typescript
* // Create a PTY manager instance
* const ptyManager = new PtyManager('/path/to/control/dir');
*
* // Create a new session
* const { sessionId, sessionInfo } = await ptyManager.createSession(
* ['bash', '-l'],
* {
* name: 'My Terminal',
* workingDir: '/home/user',
* cols: 80,
* rows: 24,
* titleMode: TitleMode.DYNAMIC
* }
* );
*
* // Send input to the session
* ptyManager.sendInput(sessionId, { text: 'ls -la\n' });
*
* // Resize the terminal
* ptyManager.resizeSession(sessionId, 100, 30);
*
* // Kill the session gracefully
* await ptyManager.killSession(sessionId);
* ```
*/
export class PtyManager extends EventEmitter {
private sessions = new Map<string, PtySession>();
private sessionManager: SessionManager;
private defaultTerm = 'xterm-256color';
private inputSocketClients = new Map<string, net.Socket>(); // Cache socket connections
private lastTerminalSize: { cols: number; rows: number } | null = null;
private resizeEventListeners: Array<() => void> = [];
private sessionResizeSources = new Map<
string,
{ cols: number; rows: number; source: 'browser' | 'terminal'; timestamp: number }
>();
private static initialized = false;
private sessionEventListeners = new Map<string, Set<(...args: unknown[]) => void>>();
private sessionExitTimes = new Map<string, number>(); // Track session exit times to avoid false bells
private processTreeAnalyzer = new ProcessTreeAnalyzer(); // Process tree analysis for bell source identification
private activityFileWarningsLogged = new Set<string>(); // Track which sessions we've logged warnings for
private lastWrittenActivityState = new Map<string, string>(); // Track last written activity state to avoid unnecessary writes
// Command tracking for notifications
private commandTracking = new Map<
string,
{
command: string;
startTime: number;
pid?: number;
}
>();
constructor(controlPath?: string) {
super();
this.sessionManager = new SessionManager(controlPath);
this.processTreeAnalyzer = new ProcessTreeAnalyzer();
this.setupTerminalResizeDetection();
// Initialize node-pty if not already done
if (!PtyManager.initialized) {
throw new Error('PtyManager not initialized. Call PtyManager.initialize() first.');
}
}
/**
* Initialize PtyManager with fallback support for node-pty
*/
public static async initialize(): Promise<void> {
if (PtyManager.initialized) {
return;
}
try {
logger.log('Initializing PtyManager...');
pty = await import('node-pty');
PtyManager.initialized = true;
logger.log('✅ PtyManager initialized successfully');
} catch (error) {
logger.error('Failed to initialize PtyManager:', error);
throw new Error(
`Cannot load node-pty: ${error instanceof Error ? error.message : String(error)}`
);
}
}
/**
* Setup terminal resize detection for when the hosting terminal is resized
*/
private setupTerminalResizeDetection(): void {
// Only setup resize detection if we're running in a TTY
if (!process.stdout.isTTY) {
logger.debug('Not a TTY, skipping terminal resize detection');
return;
}
// Store initial terminal size
this.lastTerminalSize = {
cols: process.stdout.columns || 80,
rows: process.stdout.rows || 24,
};
// Method 1: Listen for Node.js TTY resize events (most reliable)
const handleStdoutResize = () => {
const newCols = process.stdout.columns || 80;
const newRows = process.stdout.rows || 24;
this.handleTerminalResize(newCols, newRows);
};
process.stdout.on('resize', handleStdoutResize);
this.resizeEventListeners.push(() => {
process.stdout.removeListener('resize', handleStdoutResize);
});
// Method 2: Listen for SIGWINCH signals (backup for Unix systems)
const handleSigwinch = () => {
const newCols = process.stdout.columns || 80;
const newRows = process.stdout.rows || 24;
this.handleTerminalResize(newCols, newRows);
};
process.on('SIGWINCH', handleSigwinch);
this.resizeEventListeners.push(() => {
process.removeListener('SIGWINCH', handleSigwinch);
});
}
/**
* Handle terminal resize events from the hosting terminal
*/
private handleTerminalResize(newCols: number, newRows: number): void {
// Skip if size hasn't actually changed
if (
this.lastTerminalSize &&
this.lastTerminalSize.cols === newCols &&
this.lastTerminalSize.rows === newRows
) {
return;
}
logger.log(chalk.blue(`Terminal resized to ${newCols}x${newRows}`));
// Update stored size
this.lastTerminalSize = { cols: newCols, rows: newRows };
// Forward resize to all active sessions using "last resize wins" logic
const currentTime = Date.now();
for (const [sessionId, session] of this.sessions) {
if (session.ptyProcess && session.sessionInfo.status === 'running') {
// Check if we should apply this resize based on "last resize wins" logic
const lastResize = this.sessionResizeSources.get(sessionId);
const shouldResize =
!lastResize ||
lastResize.source === 'terminal' ||
currentTime - lastResize.timestamp > 1000; // 1 second grace period for browser resizes
if (shouldResize) {
try {
// Resize the PTY process
session.ptyProcess.resize(newCols, newRows);
// Record the resize event in the asciinema file
session.asciinemaWriter?.writeResize(newCols, newRows);
// Track this resize
this.sessionResizeSources.set(sessionId, {
cols: newCols,
rows: newRows,
source: 'terminal',
timestamp: currentTime,
});
logger.debug(`Resized session ${sessionId} to ${newCols}x${newRows} from terminal`);
} catch (error) {
logger.error(`Failed to resize session ${sessionId}:`, error);
}
} else {
logger.debug(
`Skipping terminal resize for session ${sessionId} (browser has precedence)`
);
}
}
}
}
/**
* Create a new PTY session
*/
async createSession(
command: string[],
options: SessionCreateOptions & {
forwardToStdout?: boolean;
onExit?: (exitCode: number, signal?: number) => void;
}
): Promise<SessionCreationResult> {
const sessionId = options.sessionId || uuidv4();
const sessionName = options.name || path.basename(command[0]);
// Correctly determine the web directory path
const webDir = path.resolve(__dirname, '..', '..');
const workingDir = options.workingDir || webDir;
const term = this.defaultTerm;
// For external spawns without dimensions, let node-pty use the terminal's natural size
// For other cases, use reasonable defaults
const cols = options.cols;
const rows = options.rows;
// Verify working directory exists
logger.debug('Session creation parameters:', {
sessionId,
sessionName,
workingDir,
term,
cols: cols !== undefined ? cols : 'terminal default',
rows: rows !== undefined ? rows : 'terminal default',
});
try {
// Create session directory structure
const paths = this.sessionManager.createSessionDirectory(sessionId);
// Resolve the command using unified resolution logic
const resolved = ProcessUtils.resolveCommand(command);
const { command: finalCommand, args: finalArgs } = resolved;
const resolvedCommand = [finalCommand, ...finalArgs];
// Log resolution details
if (resolved.resolvedFrom === 'alias') {
logger.log(
chalk.cyan(`Using alias: '${resolved.originalCommand}' → '${resolvedCommand.join(' ')}'`)
);
} else if (resolved.resolvedFrom === 'path' && resolved.originalCommand) {
logger.log(chalk.gray(`Resolved '${resolved.originalCommand}' → '${finalCommand}'`));
} else if (resolved.useShell) {
logger.debug(`Using shell to execute ${resolved.resolvedFrom}: ${command.join(' ')}`);
}
// Log the final command
logger.debug(chalk.blue(`Creating PTY session with command: ${resolvedCommand.join(' ')}`));
logger.debug(`Working directory: ${workingDir}`);
// Check if this session is being spawned from within VibeTunnel
const attachedViaVT = !!process.env.VIBETUNNEL_SESSION_ID;
// Create initial session info with resolved command
const sessionInfo: SessionInfo = {
id: sessionId,
command: resolvedCommand,
name: sessionName,
workingDir: workingDir,
status: 'starting',
startedAt: new Date().toISOString(),
initialCols: cols,
initialRows: rows,
lastClearOffset: 0,
version: VERSION,
gitRepoPath: options.gitRepoPath,
gitBranch: options.gitBranch,
gitAheadCount: options.gitAheadCount,
gitBehindCount: options.gitBehindCount,
gitHasChanges: options.gitHasChanges,
gitIsWorktree: options.gitIsWorktree,
gitMainRepoPath: options.gitMainRepoPath,
attachedViaVT,
};
// Save initial session info
this.sessionManager.saveSessionInfo(sessionId, sessionInfo);
// Create asciinema writer
// Use actual dimensions if provided, otherwise AsciinemaWriter will use defaults (80x24)
const asciinemaWriter = AsciinemaWriter.create(
paths.stdoutPath,
cols || undefined,
rows || undefined,
command.join(' '),
sessionName,
this.createEnvVars(term)
);
// Create PTY process
let ptyProcess: IPty;
try {
// Set up environment like Linux implementation
const ptyEnv = {
...process.env,
TERM: term,
// Set session ID to prevent recursive vt calls and for debugging
VIBETUNNEL_SESSION_ID: sessionId,
};
// Debug log the spawn parameters
logger.debug('PTY spawn parameters:', {
command: finalCommand,
args: finalArgs,
options: {
name: term,
cols: cols !== undefined ? cols : 'terminal default',
rows: rows !== undefined ? rows : 'terminal default',
cwd: workingDir,
hasEnv: !!ptyEnv,
envKeys: Object.keys(ptyEnv).length,
},
});
// Build spawn options - only include dimensions if provided
const spawnOptions: IPtyForkOptions = {
name: term,
cwd: workingDir,
env: ptyEnv,
};
// Only add dimensions if they're explicitly provided
// This allows node-pty to use the terminal's natural size for external spawns
if (cols !== undefined) {
spawnOptions.cols = cols;
}
if (rows !== undefined) {
spawnOptions.rows = rows;
}
ptyProcess = pty.spawn(finalCommand, finalArgs, spawnOptions);
// Add immediate exit handler to catch CI issues
const exitHandler = (event: { exitCode: number; signal?: number }) => {
const timeSinceStart = Date.now() - Date.parse(sessionInfo.startedAt);
if (timeSinceStart < 1000) {
logger.error(
`PTY process exited quickly after spawn! Exit code: ${event.exitCode}, signal: ${event.signal}, time: ${timeSinceStart}ms`
);
logger.error(
'This often happens in CI when PTY allocation fails or shell is misconfigured'
);
logger.error('Debug info:', {
SHELL: process.env.SHELL,
TERM: process.env.TERM,
CI: process.env.CI,
NODE_ENV: process.env.NODE_ENV,
command: finalCommand,
args: finalArgs,
cwd: workingDir,
cwdExists: fs.existsSync(workingDir),
commandExists: fs.existsSync(finalCommand),
});
}
};
ptyProcess.onExit(exitHandler);
} catch (spawnError) {
// Debug log the raw error first
logger.debug('Raw spawn error:', {
type: typeof spawnError,
isError: spawnError instanceof Error,
errorString: String(spawnError),
errorKeys: spawnError && typeof spawnError === 'object' ? Object.keys(spawnError) : [],
});
// Provide better error messages for common issues
let errorMessage = spawnError instanceof Error ? spawnError.message : String(spawnError);
const errorCode =
spawnError instanceof Error && 'code' in spawnError
? (spawnError as NodeJS.ErrnoException).code
: undefined;
if (errorCode === 'ENOENT' || errorMessage.includes('ENOENT')) {
errorMessage = `Command not found: '${command[0]}'. Please ensure the command exists and is in your PATH.`;
} else if (errorCode === 'EACCES' || errorMessage.includes('EACCES')) {
errorMessage = `Permission denied: '${command[0]}'. The command exists but is not executable.`;
} else if (errorCode === 'ENXIO' || errorMessage.includes('ENXIO')) {
errorMessage = `Failed to allocate terminal for '${command[0]}'. This may occur if the command doesn't exist or the system cannot create a pseudo-terminal.`;
} else if (errorMessage.includes('cwd') || errorMessage.includes('working directory')) {
errorMessage = `Working directory does not exist: '${workingDir}'`;
}
// Log the error with better serialization
const errorDetails =
spawnError instanceof Error
? {
...spawnError,
message: spawnError.message,
stack: spawnError.stack,
code: (spawnError as NodeJS.ErrnoException).code,
}
: spawnError;
logger.error(`Failed to spawn PTY for command '${command.join(' ')}':`, errorDetails);
throw new PtyError(errorMessage, 'SPAWN_FAILED');
}
// Create session object
// Auto-detect Claude commands and set dynamic mode if no title mode specified
let titleMode = options.titleMode;
if (!titleMode) {
// Check all command arguments for Claude
const isClaudeCommand = command.some((arg) => arg.toLowerCase().includes('claude'));
if (isClaudeCommand) {
titleMode = TitleMode.DYNAMIC;
logger.log(chalk.cyan('✓ Auto-selected dynamic title mode for Claude'));
logger.debug(`Detected Claude in command: ${command.join(' ')}`);
}
}
const session: PtySession = {
id: sessionId,
sessionInfo,
ptyProcess,
asciinemaWriter,
controlDir: paths.controlDir,
stdoutPath: paths.stdoutPath,
stdinPath: paths.stdinPath,
sessionJsonPath: paths.sessionJsonPath,
startTime: new Date(),
titleMode: titleMode || TitleMode.NONE,
isExternalTerminal: !!options.forwardToStdout,
currentWorkingDir: workingDir,
titleFilter: new TitleSequenceFilter(),
};
this.sessions.set(sessionId, session);
// Update session info with PID and running status
sessionInfo.pid = ptyProcess.pid;
sessionInfo.status = 'running';
this.sessionManager.saveSessionInfo(sessionId, sessionInfo);
// Setup session.json watcher for external sessions
if (options.forwardToStdout) {
this.setupSessionWatcher(session);
}
logger.debug(
chalk.green(`Session ${sessionId} created successfully (PID: ${ptyProcess.pid})`)
);
logger.log(chalk.gray(`Running: ${resolvedCommand.join(' ')} in ${workingDir}`));
// Setup PTY event handlers
this.setupPtyHandlers(session, options.forwardToStdout || false, options.onExit);
// Start foreground process tracking
this.startForegroundProcessTracking(session);
// Note: stdin forwarding is now handled via IPC socket
// Initial title will be set when the first output is received
// Do not write title sequence to PTY input as it would be sent to the shell
// Emit session started event
this.emit('sessionStarted', sessionId, sessionInfo.name || sessionInfo.command.join(' '));
// Send notification to Mac app
if (controlUnixHandler.isMacAppConnected()) {
controlUnixHandler.sendNotification(
'Session Started',
sessionInfo.name || sessionInfo.command.join(' '),
{
type: 'session-start',
sessionId: sessionId,
sessionName: sessionInfo.name || sessionInfo.command.join(' '),
}
);
}
return {
sessionId,
sessionInfo,
};
} catch (error) {
// Cleanup on failure
try {
this.sessionManager.cleanupSession(sessionId);
} catch (cleanupError) {
logger.warn(`Failed to cleanup session ${sessionId} after creation failure:`, cleanupError);
}
throw new PtyError(
`Failed to create session: ${error instanceof Error ? error.message : String(error)}`,
'SESSION_CREATE_FAILED'
);
}
}
public getPtyForSession(sessionId: string): IPty | null {
const session = this.sessions.get(sessionId);
return session?.ptyProcess || null;
}
public getInternalSession(sessionId: string): PtySession | undefined {
return this.sessions.get(sessionId);
}
/**
* Setup event handlers for a PTY process
*/
private setupPtyHandlers(
session: PtySession,
forwardToStdout: boolean,
onExit?: (exitCode: number, signal?: number) => void
): void {
const { ptyProcess, asciinemaWriter } = session;
if (!ptyProcess) {
logger.error(`No PTY process found for session ${session.id}`);
return;
}
// Create write queue for stdout if forwarding
const stdoutQueue = forwardToStdout ? new WriteQueue() : null;
if (stdoutQueue) {
session.stdoutQueue = stdoutQueue;
}
// Create write queue for input to prevent race conditions
const inputQueue = new WriteQueue();
session.inputQueue = inputQueue;
// Setup activity detector for dynamic mode
if (session.titleMode === TitleMode.DYNAMIC) {
session.activityDetector = new ActivityDetector(session.sessionInfo.command, session.id);
// Set up Claude turn notification callback
session.activityDetector.setOnClaudeTurn((sessionId) => {
logger.info(`🔔 NOTIFICATION DEBUG: Claude turn detected for session ${sessionId}`);
this.emit(
'claudeTurn',
sessionId,
session.sessionInfo.name || session.sessionInfo.command.join(' ')
);
});
}
// Setup periodic title updates for both static and dynamic modes
if (
session.titleMode !== TitleMode.NONE &&
session.titleMode !== TitleMode.FILTER &&
forwardToStdout
) {
// Track last known activity state for change detection
let lastKnownActivityState: {
isActive: boolean;
specificStatus?: string;
} | null = null;
session.titleUpdateInterval = setInterval(() => {
// For dynamic mode, check for activity state changes
if (session.titleMode === TitleMode.DYNAMIC && session.activityDetector) {
const activityState = session.activityDetector.getActivityState();
// Check if activity state has changed
const activityChanged =
lastKnownActivityState === null ||
activityState.isActive !== lastKnownActivityState.isActive ||
activityState.specificStatus?.status !== lastKnownActivityState.specificStatus;
if (activityChanged) {
// Update last known state
lastKnownActivityState = {
isActive: activityState.isActive,
specificStatus: activityState.specificStatus?.status,
};
// Mark title for update
this.markTitleUpdateNeeded(session);
logger.debug(
`Activity state changed for session ${session.id}: ` +
`active=${activityState.isActive}, ` +
`status=${activityState.specificStatus?.status || 'none'}`
);
// Send notification when activity becomes inactive (Claude's turn)
if (!activityState.isActive && activityState.specificStatus?.status === 'waiting') {
logger.info(`🔔 NOTIFICATION DEBUG: Claude turn detected for session ${session.id}`);
this.emit(
'claudeTurn',
session.id,
session.sessionInfo.name || session.sessionInfo.command.join(' ')
);
// Send notification to Mac app directly
if (controlUnixHandler.isMacAppConnected()) {
controlUnixHandler.sendNotification('Your Turn', 'Claude has finished responding', {
type: 'your-turn',
sessionId: session.id,
sessionName: session.sessionInfo.name || session.sessionInfo.command.join(' '),
});
}
}
}
// Always write activity state for external tools
this.writeActivityState(session, activityState);
}
// Check and update title if needed
this.checkAndUpdateTitle(session);
}, TITLE_UPDATE_INTERVAL_MS);
}
// Handle PTY data output
ptyProcess.onData((data: string) => {
let processedData = data;
// If title mode is not NONE, filter out any title sequences the process might
// have written to the stream.
if (session.titleMode !== undefined && session.titleMode !== TitleMode.NONE) {
processedData = session.titleFilter ? session.titleFilter.filter(data) : data;
}
// Handle activity detection for dynamic mode
if (session.titleMode === TitleMode.DYNAMIC && session.activityDetector) {
const { filteredData, activity } = session.activityDetector.processOutput(processedData);
processedData = filteredData;
// Check if activity status changed
if (activity.specificStatus?.status !== session.lastActivityStatus) {
session.lastActivityStatus = activity.specificStatus?.status;
this.markTitleUpdateNeeded(session);
}
}
// Check for title update triggers
if (session.titleMode === TitleMode.STATIC && forwardToStdout) {
// Check if we should update title based on data content
if (!session.initialTitleSent || shouldInjectTitle(processedData)) {
this.markTitleUpdateNeeded(session);
if (!session.initialTitleSent) {
session.initialTitleSent = true;
}
}
}
// Write to asciinema file (it has its own internal queue)
asciinemaWriter?.writeOutput(Buffer.from(processedData, 'utf8'));
// Check for clear sequences in the data and update lastClearOffset
const CLEAR_SEQUENCE = '\x1b[3J';
if (processedData.includes(CLEAR_SEQUENCE) && asciinemaWriter) {
// Find all occurrences of clear sequences
let searchIndex = 0;
const clearPositions: number[] = [];
while (searchIndex < processedData.length) {
const clearIndex = processedData.indexOf(CLEAR_SEQUENCE, searchIndex);
if (clearIndex === -1) break;
clearPositions.push(clearIndex);
searchIndex = clearIndex + CLEAR_SEQUENCE.length;
}
// If we found clear sequences, schedule an update after a short delay
// This ensures the asciinema writer has flushed the data to disk
if (clearPositions.length > 0) {
// Use a short timeout to ensure the write has completed
setTimeout(async () => {
try {
// Get the session paths
const sessionPaths = this.sessionManager.getSessionPaths(session.id);
if (!sessionPaths) {
logger.error(`Failed to get session paths for session ${session.id}`);
return;
}
// Get the current file size (which is the position after the write)
const stats = await fs.promises.stat(sessionPaths.stdoutPath);
const currentFileSize = stats.size;
// Get the full session info to update
const sessionInfo = this.sessionManager.loadSessionInfo(session.id);
if (!sessionInfo) {
logger.error(`Failed to get session info for session ${session.id}`);
return;
}
// Update lastClearOffset to the current file position
// This is approximate but good enough - when replay happens,
// stream-watcher will find the exact position of the last clear
sessionInfo.lastClearOffset = currentFileSize;
// Save the updated session info
await this.sessionManager.saveSessionInfo(session.id, sessionInfo);
logger.debug(
`Updated lastClearOffset for session ${session.id} to ${currentFileSize} after detecting ${clearPositions.length} clear sequence(s)`
);
} catch (error) {
logger.error(`Failed to update lastClearOffset for session ${session.id}:`, error);
}
}, 100); // 100ms delay to ensure write completes
}
}
// Forward to stdout if requested (using queue for ordering)
if (forwardToStdout && stdoutQueue) {
stdoutQueue.enqueue(async () => {
const canWrite = process.stdout.write(processedData);
// Track write activity for safe title injection
session.lastWriteTimestamp = Date.now();
if (!canWrite) {
await once(process.stdout, 'drain');
}
});
}
});
// Handle PTY exit
ptyProcess.onExit(async ({ exitCode, signal }: { exitCode: number; signal?: number }) => {
try {
// Mark session as exiting to prevent false bell notifications
this.sessionExitTimes.set(session.id, Date.now());
// Write exit event to asciinema
if (asciinemaWriter?.isOpen()) {
asciinemaWriter.writeRawJson(['exit', exitCode || 0, session.id]);
asciinemaWriter
.close()
.catch((error) =>
logger.error(`Failed to close asciinema writer for session ${session.id}:`, error)
);
}
// Update session status
this.sessionManager.updateSessionStatus(
session.id,
'exited',
undefined,
exitCode || (signal ? 128 + (typeof signal === 'number' ? signal : 1) : 1)
);
// Wait for stdout queue to drain if it exists
if (session.stdoutQueue) {
try {
await session.stdoutQueue.drain();
} catch (error) {
logger.error(`Failed to drain stdout queue for session ${session.id}:`, error);
}
}
// Clean up session resources
this.cleanupSessionResources(session);
// Remove from active sessions
this.sessions.delete(session.id);
// Clean up command tracking
this.commandTracking.delete(session.id);
// Emit session exited event
this.emit(
'sessionExited',
session.id,
session.sessionInfo.name || session.sessionInfo.command.join(' '),
exitCode
);
// Send notification to Mac app
if (controlUnixHandler.isMacAppConnected()) {
controlUnixHandler.sendNotification(
'Session Ended',
session.sessionInfo.name || session.sessionInfo.command.join(' '),
{
type: 'session-exit',
sessionId: session.id,
sessionName: session.sessionInfo.name || session.sessionInfo.command.join(' '),
}
);
}
// Call exit callback if provided (for fwd.ts)
if (onExit) {
onExit(exitCode || 0, signal);
}
} catch (error) {
logger.error(`Failed to handle exit for session ${session.id}:`, error);
}
});
// Mark for initial title update
if (
forwardToStdout &&
(session.titleMode === TitleMode.STATIC || session.titleMode === TitleMode.DYNAMIC)
) {
this.markTitleUpdateNeeded(session);
session.initialTitleSent = true;
logger.debug(`Marked initial title update for session ${session.id}`);
}
// Setup IPC socket for all communication
this.setupIPCSocket(session);
}
/**
* Setup Unix socket for all IPC communication
*/
private setupIPCSocket(session: PtySession): void {
const ptyProcess = session.ptyProcess;
if (!ptyProcess) {
logger.error(`No PTY process found for session ${session.id}`);
return;
}
// Create Unix domain socket for all IPC
// IMPORTANT: macOS has a 104 character limit for Unix socket paths, including null terminator.
// This means the actual usable path length is 103 characters. To avoid EINVAL errors:
// - Use short socket names (e.g., 'ipc.sock' instead of 'vibetunnel-ipc.sock')
// - Keep session directories as short as possible
// - Avoid deeply nested directory structures
const socketPath = path.join(session.controlDir, 'ipc.sock');
// Verify the socket path isn't too long
if (socketPath.length > 103) {
const error = new Error(`Socket path too long: ${socketPath.length} characters`);
logger.error(`Socket path too long (${socketPath.length} chars): ${socketPath}`);
logger.error(
`macOS limit is 103 characters. Consider using shorter session IDs or control paths.`
);
throw error; // Fail fast instead of returning silently
}
try {
// Remove existing socket if it exists
try {
fs.unlinkSync(socketPath);
} catch (_e) {
// Socket doesn't exist, this is expected
}
// Initialize connected clients set if not already present
if (!session.connectedClients) {
session.connectedClients = new Set<net.Socket>();
}
// Create Unix domain socket server with framed message protocol
const inputServer = net.createServer((client) => {
const parser = new MessageParser();
client.setNoDelay(true);
// Add client to connected clients set
session.connectedClients?.add(client);
logger.debug(
`Client connected to session ${session.id}, total clients: ${session.connectedClients?.size}`
);
client.on('data', (chunk) => {
parser.addData(chunk);
for (const { type, payload } of parser.parseMessages()) {
this.handleSocketMessage(session, type, payload);
}
});
client.on('error', (err) => {
logger.debug(`Client socket error for session ${session.id}:`, err);
});
client.on('close', () => {
// Remove client from connected clients set
session.connectedClients?.delete(client);
logger.debug(
`Client disconnected from session ${session.id}, remaining clients: ${session.connectedClients?.size}`
);
});
});
inputServer.listen(socketPath, () => {
// Make socket writable by all
try {
fs.chmodSync(socketPath, 0o666);
} catch (e) {
logger.debug(`Failed to chmod input socket for session ${session.id}:`, e);
}
logger.debug(`Input socket created for session ${session.id}`);
});
// Store server reference for cleanup
session.inputSocketServer = inputServer;
} catch (error) {
logger.error(`Failed to create input socket for session ${session.id}:`, error);
}
// All IPC goes through this socket
}
/**
* Setup file watcher for session.json changes
*/
private setupSessionWatcher(session: PtySession): void {
const _sessionJsonPath = path.join(session.controlDir, 'session.json');
try {
// Use polling approach for better reliability on macOS
// Check for changes every 100ms
const checkInterval = setInterval(() => {
try {
// Read the current session info from disk
const updatedInfo = this.sessionManager.loadSessionInfo(session.id);
if (updatedInfo && updatedInfo.name !== session.sessionInfo.name) {
// Name has changed, update our internal state
const oldName = session.sessionInfo.name;
session.sessionInfo.name = updatedInfo.name;
logger.debug(
`Session ${session.id} name changed from "${oldName}" to "${updatedInfo.name}"`
);
// Emit event for name change
this.trackAndEmit('sessionNameChanged', session.id, updatedInfo.name);
// Update title if needed for external terminals
if (
session.isExternalTerminal &&
(session.titleMode === TitleMode.STATIC || session.titleMode === TitleMode.DYNAMIC)
) {
this.markTitleUpdateNeeded(session);
}
}
} catch (error) {
// Session file might be deleted, ignore
logger.debug(`Failed to read session file for ${session.id}:`, error);
}
}, 100);
// Store interval for cleanup
session.sessionJsonInterval = checkInterval;
logger.debug(`Session watcher setup for ${session.id}`);
} catch (error) {
logger.error(`Failed to setup session watcher for ${session.id}:`, error);
}
}
/**
* Handle incoming socket messages
*/
private handleSocketMessage(session: PtySession, type: MessageType, payload: Buffer): void {
try {
const data = parsePayload(type, payload);
switch (type) {
case MessageType.STDIN_DATA: {
const text = data as string;
if (session.ptyProcess && session.inputQueue) {
// Queue input write to prevent race conditions
session.inputQueue.enqueue(() => {
if (session.ptyProcess) {
session.ptyProcess.write(text);
}
// Record it (non-blocking)
session.asciinemaWriter?.writeInput(text);
});
}
break;
}
case MessageType.CONTROL_CMD: {
const cmd = data as ControlCommand;
this.handleControlMessage(session, cmd);
break;
}
case MessageType.STATUS_UPDATE: {
const status = data as { app: string; status: string };
// Update activity status for the session
if (!session.activityStatus) {
session.activityStatus = {};
}
session.activityStatus.specificStatus = {
app: status.app,
status: status.status,
};
logger.debug(`Updated status for session ${session.id}:`, status);
// Broadcast status update to all connected clients
if (session.connectedClients && session.connectedClients.size > 0) {
const message = frameMessage(MessageType.STATUS_UPDATE, status);
for (const client of session.connectedClients) {
try {
client.write(message);
} catch (err) {
logger.debug(`Failed to broadcast status to client:`, err);
}
}
logger.debug(`Broadcasted status update to ${session.connectedClients.size} clients`);
}
break;
}
case MessageType.HEARTBEAT:
// Heartbeat received - no action needed for now
break;
default:
logger.debug(`Unknown message type ${type} for session ${session.id}`);
}
} catch (error) {
// Don't log the full error object as it might contain buffers or circular references
const errorMessage = error instanceof Error ? error.message : String(error);
logger.error(`Failed to handle socket message for session ${session.id}: ${errorMessage}`);
}
}
/**
* Handle control messages from control pipe
*/
private handleControlMessage(session: PtySession, message: Record<string, unknown>): void {
if (
message.cmd === 'resize' &&
typeof message.cols === 'number' &&
typeof message.rows === 'number'
) {
try {
if (session.ptyProcess) {
session.ptyProcess.resize(message.cols, message.rows);
session.asciinemaWriter?.writeResize(message.cols, message.rows);
}
} catch (error) {
logger.warn(
`Failed to resize session ${session.id} to ${message.cols}x${message.rows}:`,
error
);
}
} else if (message.cmd === 'kill') {
const signal =
typeof message.signal === 'string' || typeof message.signal === 'number'
? message.signal
: 'SIGTERM';
try {
if (session.ptyProcess) {
session.ptyProcess.kill(signal as string);
}
} catch (error) {
logger.warn(`Failed to kill session ${session.id} with signal ${signal}:`, error);
}
} else if (message.cmd === 'reset-size') {
try {
if (session.ptyProcess) {
// Get current terminal size from process.stdout
const cols = process.stdout.columns || 80;
const rows = process.stdout.rows || 24;
session.ptyProcess.resize(cols, rows);
session.asciinemaWriter?.writeResize(cols, rows);
logger.debug(`Reset session ${session.id} size to terminal size: ${cols}x${rows}`);
}
} catch (error) {
logger.warn(`Failed to reset session ${session.id} size to terminal size:`, error);
}
} else if (message.cmd === 'update-title' && typeof message.title === 'string') {
// Handle title update via IPC (used by vt title command)
logger.debug(`[IPC] Received title update for session ${session.id}: "${message.title}"`);
logger.debug(`[IPC] Current session name before update: "${session.sessionInfo.name}"`);
this.updateSessionName(session.id, message.title);
}
}
/**
* Get fish shell completions for a partial command
*/
async getFishCompletions(sessionId: string, partial: string): Promise<string[]> {
try {
const session = this.sessions.get(sessionId);
if (!session) {
return [];
}
const userShell = ProcessUtils.getUserShell();
if (!FishHandler.isFishShell(userShell)) {
return [];
}
const { fishHandler } = await import('./fish-handler.js');
const cwd = session.currentWorkingDir || process.cwd();
return await fishHandler.getCompletions(partial, cwd);
} catch (error) {
logger.warn(`Fish completions failed: ${error}`);
return [];
}
}
/**
* Send text input to a session
*/
sendInput(sessionId: string, input: SessionInput): void {
try {
let dataToSend = '';
if (input.text !== undefined) {
dataToSend = input.text;
logger.debug(
`Received text input: ${JSON.stringify(input.text)} -> sending: ${JSON.stringify(dataToSend)}`
);
} else if (input.key !== undefined) {
dataToSend = this.convertSpecialKey(input.key);
logger.debug(
`Received special key: "${input.key}" -> converted to: ${JSON.stringify(dataToSend)}`
);
} else {
throw new PtyError('No text or key specified in input', 'INVALID_INPUT');
}
// If we have an in-memory session with active PTY, use it
const memorySession = this.sessions.get(sessionId);
if (memorySession?.ptyProcess && memorySession.inputQueue) {
// Queue input write to prevent race conditions
memorySession.inputQueue.enqueue(() => {
if (memorySession.ptyProcess) {
memorySession.ptyProcess.write(dataToSend);
}
memorySession.asciinemaWriter?.writeInput(dataToSend);
// Track directory changes for title modes that need it
if (
(memorySession.titleMode === TitleMode.STATIC ||
memorySession.titleMode === TitleMode.DYNAMIC) &&
input.text
) {
const newDir = extractCdDirectory(
input.text,
memorySession.currentWorkingDir || memorySession.sessionInfo.workingDir
);
if (newDir) {
memorySession.currentWorkingDir = newDir;
this.markTitleUpdateNeeded(memorySession);
logger.debug(`Session ${sessionId} changed directory to: ${newDir}`);
}
}
});
return; // Important: return here to avoid socket path
} else {
const sessionPaths = this.sessionManager.getSessionPaths(sessionId);
if (!sessionPaths) {
throw new PtyError(
`Session ${sessionId} paths not found`,
'SESSION_PATHS_NOT_FOUND',
sessionId
);
}
// For forwarded sessions, we need to use socket communication
const socketPath = path.join(sessionPaths.controlDir, 'ipc.sock');
// Check if we have a cached socket connection
let socketClient = this.inputSocketClients.get(sessionId);
if (!socketClient || socketClient.destroyed) {
// Try to connect to the socket
try {
socketClient = net.createConnection(socketPath);
socketClient.setNoDelay(true);
// Keep socket alive for better performance
socketClient.setKeepAlive(true, 0);
this.inputSocketClients.set(sessionId, socketClient);
socketClient.on('error', () => {
this.inputSocketClients.delete(sessionId);
});
socketClient.on('close', () => {
this.inputSocketClients.delete(sessionId);
});
} catch (error) {
logger.debug(`Failed to connect to input socket for session ${sessionId}:`, error);
socketClient = undefined;
}
}
if (socketClient && !socketClient.destroyed) {
// Send stdin data using framed message protocol
const message = frameMessage(MessageType.STDIN_DATA, dataToSend);
const canWrite = socketClient.write(message);
if (!canWrite) {
// Socket buffer is full
logger.debug(`Socket buffer full for session ${sessionId}, data queued`);
}
} else {
throw new PtyError(
`No socket connection available for session ${sessionId}`,
'NO_SOCKET_CONNECTION',
sessionId
);
}
}
} catch (error) {
throw new PtyError(
`Failed to send input to session ${sessionId}: ${error instanceof Error ? error.message : String(error)}`,
'SEND_INPUT_FAILED',
sessionId
);
}
}
/**
* Send a control message to an external session via socket
*/
private sendControlMessage(
sessionId: string,
message: ResizeControlMessage | KillControlMessage | ResetSizeControlMessage
): boolean {
const sessionPaths = this.sessionManager.getSessionPaths(sessionId);
if (!sessionPaths) {
return false;
}
try {
const socketPath = path.join(sessionPaths.controlDir, 'ipc.sock');
let socketClient = this.inputSocketClients.get(sessionId);
if (!socketClient || socketClient.destroyed) {
// Try to connect to the socket
try {
socketClient = net.createConnection(socketPath);
socketClient.setNoDelay(true);
socketClient.setKeepAlive(true, 0);
this.inputSocketClients.set(sessionId, socketClient);
socketClient.on('error', () => {
this.inputSocketClients.delete(sessionId);
});
socketClient.on('close', () => {
this.inputSocketClients.delete(sessionId);
});
} catch (error) {
logger.debug(`Failed to connect to control socket for session ${sessionId}:`, error);
return false;
}
}
if (socketClient && !socketClient.destroyed) {
const frameMsg = frameMessage(MessageType.CONTROL_CMD, message);
return socketClient.write(frameMsg);
}
} catch (error) {
logger.error(`Failed to send control message to session ${sessionId}:`, error);
}
return false;
}
/**
* Convert special key names to escape sequences
*/
private convertSpecialKey(key: SpecialKey): string {
const keyMap: Record<SpecialKey, string> = {
arrow_up: '\x1b[A',
arrow_down: '\x1b[B',
arrow_right: '\x1b[C',
arrow_left: '\x1b[D',
escape: '\x1b',
enter: '\r',
ctrl_enter: '\n',
shift_enter: '\r\n',
backspace: '\x7f',
tab: '\t',
shift_tab: '\x1b[Z',
page_up: '\x1b[5~',
page_down: '\x1b[6~',
home: '\x1b[H',
end: '\x1b[F',
delete: '\x1b[3~',
f1: '\x1bOP',
f2: '\x1bOQ',
f3: '\x1bOR',
f4: '\x1bOS',
f5: '\x1b[15~',
f6: '\x1b[17~',
f7: '\x1b[18~',
f8: '\x1b[19~',
f9: '\x1b[20~',
f10: '\x1b[21~',
f11: '\x1b[23~',
f12: '\x1b[24~',
};
const sequence = keyMap[key];
if (!sequence) {
throw new PtyError(`Unknown special key: ${key}`, 'UNKNOWN_KEY');
}
return sequence;
}
/**
* Resize a session terminal
*/
resizeSession(sessionId: string, cols: number, rows: number): void {
const memorySession = this.sessions.get(sessionId);
const currentTime = Date.now();
try {
// If we have an in-memory session with active PTY, resize it
if (memorySession?.ptyProcess) {
memorySession.ptyProcess.resize(cols, rows);
memorySession.asciinemaWriter?.writeResize(cols, rows);
// Track this browser-initiated resize
this.sessionResizeSources.set(sessionId, {
cols,
rows,
source: 'browser',
timestamp: currentTime,
});
logger.debug(`Resized session ${sessionId} to ${cols}x${rows} from browser`);
} else {
// For external sessions, try to send resize via control pipe
const resizeMessage: ResizeControlMessage = {
cmd: 'resize',
cols,
rows,
};
this.sendControlMessage(sessionId, resizeMessage);
// Track this resize for external sessions too
this.sessionResizeSources.set(sessionId, {
cols,
rows,
source: 'browser',
timestamp: currentTime,
});
}
} catch (error) {
throw new PtyError(
`Failed to resize session ${sessionId}: ${error instanceof Error ? error.message : String(error)}`,
'RESIZE_FAILED',
sessionId
);
}
}
/**
* Update session name
*/
updateSessionName(sessionId: string, name: string): string {
logger.debug(
`[PtyManager] updateSessionName called for session ${sessionId} with name: ${name}`
);
// Update in session manager (persisted storage) - get the unique name back
logger.debug(`[PtyManager] Calling sessionManager.updateSessionName`);
const uniqueName = this.sessionManager.updateSessionName(sessionId, name);
// Update in-memory session if it exists
const memorySession = this.sessions.get(sessionId);
if (memorySession?.sessionInfo) {
logger.debug(`[PtyManager] Found in-memory session, updating...`);
const oldName = memorySession.sessionInfo.name;
memorySession.sessionInfo.name = uniqueName;
logger.debug(`[PtyManager] Session info after update:`, {
sessionId: memorySession.id,
newName: memorySession.sessionInfo.name,
oldCurrentTitle: `${memorySession.currentTitle?.substring(0, 50)}...`,
});
// Force immediate title update for active sessions
// For session name changes, always update title regardless of mode
if (memorySession.isExternalTerminal && memorySession.stdoutQueue) {
logger.debug(`[PtyManager] Forcing immediate title update for session ${sessionId}`, {
titleMode: memorySession.titleMode,
hadCurrentTitle: !!memorySession.currentTitle,
titleUpdateNeeded: memorySession.titleUpdateNeeded,
});
// Clear current title to force regeneration
memorySession.currentTitle = undefined;
this.updateTerminalTitleForSessionName(memorySession);
}
logger.log(
`[PtyManager] Updated session ${sessionId} name from "${oldName}" to "${uniqueName}"`
);
} else {
logger.debug(`[PtyManager] No in-memory session found for ${sessionId}`, {
sessionsMapSize: this.sessions.size,
sessionIds: Array.from(this.sessions.keys()),
});
}
// Emit event for clients to refresh their session data
this.trackAndEmit('sessionNameChanged', sessionId, uniqueName);
logger.debug(`[PtyManager] Updated session ${sessionId} name to: ${uniqueName}`);
return uniqueName;
}
/**
* Reset session size to terminal size (for external terminals)
*/
resetSessionSize(sessionId: string): void {
const memorySession = this.sessions.get(sessionId);
try {
// For in-memory sessions, we can't reset to terminal size since we don't know it
if (memorySession?.ptyProcess) {
throw new PtyError(
`Cannot reset size for in-memory session ${sessionId}`,
'INVALID_OPERATION',
sessionId
);
}
// For external sessions, send reset-size command via control pipe
const resetSizeMessage: ResetSizeControlMessage = {
cmd: 'reset-size',
};
const sent = this.sendControlMessage(sessionId, resetSizeMessage);
if (!sent) {
throw new PtyError(
`Failed to send reset-size command to session ${sessionId}`,
'CONTROL_MESSAGE_FAILED',
sessionId
);
}
logger.debug(`Sent reset-size command to session ${sessionId}`);
} catch (error) {
throw new PtyError(
`Failed to reset session size for ${sessionId}: ${error instanceof Error ? error.message : String(error)}`,
'RESET_SIZE_FAILED',
sessionId
);
}
}
/**
* Kill a session with proper SIGTERM -> SIGKILL escalation
* Returns a promise that resolves when the process is actually terminated
*/
async killSession(sessionId: string, signal: string | number = 'SIGTERM'): Promise<void> {
const memorySession = this.sessions.get(sessionId);
try {
// If we have an in-memory session with active PTY, kill it directly
if (memorySession?.ptyProcess) {
// If signal is already SIGKILL, send it immediately and wait briefly
if (signal === 'SIGKILL' || signal === 9) {
memorySession.ptyProcess.kill('SIGKILL');
// Note: We no longer kill the process group to avoid affecting other sessions
// that might share the same process group (e.g., multiple fwd.ts instances)
this.sessions.delete(sessionId);
// Wait a bit for SIGKILL to take effect
await new Promise((resolve) => setTimeout(resolve, 100));
return;
}
// Start with SIGTERM and escalate if needed
await this.killSessionWithEscalation(sessionId, memorySession);
} else {
// For external sessions, try control pipe first, then fall back to PID
const killMessage: KillControlMessage = {
cmd: 'kill',
signal,
};
const sentControl = this.sendControlMessage(sessionId, killMessage);
if (sentControl) {
// Wait a bit for the control message to be processed
await new Promise((resolve) => setTimeout(resolve, 500));
}
// Check if process is still running, if so, use direct PID kill
const diskSession = this.sessionManager.loadSessionInfo(sessionId);
if (!diskSession) {
throw new PtyError(`Session ${sessionId} not found`, 'SESSION_NOT_FOUND', sessionId);
}
if (diskSession.pid && ProcessUtils.isProcessRunning(diskSession.pid)) {
logger.log(
chalk.yellow(`Killing external session ${sessionId} (PID: ${diskSession.pid})`)
);
if (signal === 'SIGKILL' || signal === 9) {
process.kill(diskSession.pid, 'SIGKILL');
// Note: We no longer kill the process group to avoid affecting other sessions
// that might share the same process group (e.g., multiple fwd.ts instances)
await new Promise((resolve) => setTimeout(resolve, 100));
return;
}
// Send SIGTERM first
process.kill(diskSession.pid, 'SIGTERM');
// Note: We no longer kill the process group to avoid affecting other sessions
// that might share the same process group (e.g., multiple fwd.ts instances)
// Wait up to 3 seconds for graceful termination
const maxWaitTime = 3000;
const checkInterval = 500;
const maxChecks = maxWaitTime / checkInterval;
for (let i = 0; i < maxChecks; i++) {
await new Promise((resolve) => setTimeout(resolve, checkInterval));
if (!ProcessUtils.isProcessRunning(diskSession.pid)) {
logger.debug(chalk.green(`External session ${sessionId} terminated gracefully`));
return;
}
}
// Process didn't terminate gracefully, force kill
logger.debug(chalk.yellow(`External session ${sessionId} requires SIGKILL`));
process.kill(diskSession.pid, 'SIGKILL');
// Note: We no longer kill the process group to avoid affecting other sessions
// that might share the same process group (e.g., multiple fwd.ts instances)
await new Promise((resolve) => setTimeout(resolve, 100));
}
}
} catch (error) {
throw new PtyError(
`Failed to kill session ${sessionId}: ${error instanceof Error ? error.message : String(error)}`,
'KILL_FAILED',
sessionId
);
}
}
/**
* Kill session with SIGTERM -> SIGKILL escalation (3 seconds, check every 500ms)
*/
private async killSessionWithEscalation(sessionId: string, session: PtySession): Promise<void> {
if (!session.ptyProcess) {
this.sessions.delete(sessionId);
return;
}
const pid = session.ptyProcess.pid;
logger.debug(chalk.yellow(`Terminating session ${sessionId} (PID: ${pid})`));
try {
// Send SIGTERM first
session.ptyProcess.kill('SIGTERM');
// Note: We no longer kill the process group to avoid affecting other sessions
// that might share the same process group (e.g., multiple fwd.ts instances)
// Wait up to 3 seconds for graceful termination (check every 500ms)
const maxWaitTime = 3000;
const checkInterval = 500;
const maxChecks = maxWaitTime / checkInterval;
for (let i = 0; i < maxChecks; i++) {
// Wait for check interval
await new Promise((resolve) => setTimeout(resolve, checkInterval));
// Check if process is still alive
if (!ProcessUtils.isProcessRunning(pid)) {
// Process no longer exists - it terminated gracefully
logger.debug(chalk.green(`Session ${sessionId} terminated gracefully`));
this.sessions.delete(sessionId);
return;
}
// Process still exists, continue waiting
logger.debug(`Session ${sessionId} still running after ${(i + 1) * checkInterval}ms`);
}
// Process didn't terminate gracefully within 3 seconds, force kill
logger.debug(chalk.yellow(`Session ${sessionId} requires SIGKILL`));
try {
session.ptyProcess.kill('SIGKILL');
// Also force kill the entire process group if on Unix
// Note: We no longer kill the process group to avoid affecting other sessions
// that might share the same process group (e.g., multiple fwd.ts instances)
// Wait a bit more for SIGKILL to take effect
await new Promise((resolve) => setTimeout(resolve, 100));
} catch (_killError) {
// Process might have died between our check and SIGKILL
logger.debug(`SIGKILL failed for session ${sessionId} (process already terminated)`);
}
// Remove from sessions regardless
this.sessions.delete(sessionId);
logger.debug(chalk.yellow(`Session ${sessionId} forcefully terminated`));
} catch (error) {
// Remove from sessions even if kill failed
this.sessions.delete(sessionId);
throw new PtyError(
`Failed to terminate session ${sessionId}: ${error instanceof Error ? error.message : String(error)}`,
'KILL_FAILED',
sessionId
);
}
}
/**
* List all sessions (both active and persisted)
*/
listSessions() {
// Update zombie sessions first and clean up socket connections
const zombieSessionIds = this.sessionManager.updateZombieSessions();
for (const sessionId of zombieSessionIds) {
const socket = this.inputSocketClients.get(sessionId);
if (socket) {
socket.destroy();
this.inputSocketClients.delete(sessionId);
}
}
// Get all sessions from storage
const sessions = this.sessionManager.listSessions();
// Enhance with activity information
return sessions.map((session) => {
// First try to get activity from active session
const activeSession = this.sessions.get(session.id);
// Check for socket-based status updates first
if (activeSession?.activityStatus) {
return {
...session,
activityStatus: activeSession.activityStatus,
};
}
// Then check activity detector for dynamic mode
if (activeSession?.activityDetector) {
const activityState = activeSession.activityDetector.getActivityState();
return {
...session,
activityStatus: {
isActive: activityState.isActive,
specificStatus: activityState.specificStatus,
},
};
}
// Otherwise, try to read from activity file (for external sessions)
try {
const sessionPaths = this.sessionManager.getSessionPaths(session.id);
if (!sessionPaths) {
return session;
}
const activityPath = path.join(sessionPaths.controlDir, 'claude-activity.json');
if (fs.existsSync(activityPath)) {
const activityData = JSON.parse(fs.readFileSync(activityPath, 'utf-8'));
// Check if activity is recent (within last 60 seconds)
// Use Math.abs to handle future timestamps from system clock issues
const timeDiff = Math.abs(Date.now() - new Date(activityData.timestamp).getTime());
const isRecent = timeDiff < 60000;
if (isRecent) {
logger.debug(`Found recent activity for external session ${session.id}:`, {
isActive: activityData.isActive,
specificStatus: activityData.specificStatus,
});
return {
...session,
activityStatus: {
isActive: activityData.isActive,
specificStatus: activityData.specificStatus,
},
};
} else {
logger.debug(
`Activity file for session ${session.id} is stale (time diff: ${timeDiff}ms)`
);
}
} else {
// Only log once per session to avoid spam
if (!this.activityFileWarningsLogged.has(session.id)) {
this.activityFileWarningsLogged.add(session.id);
logger.debug(
`No claude-activity.json found for session ${session.id} at ${activityPath}`
);
}
}
} catch (error) {
// Ignore errors reading activity file
logger.debug(`Failed to read activity file for session ${session.id}:`, error);
}
return session;
});
}
/**
* Get a specific session
*/
getSession(sessionId: string): Session | null {
logger.debug(`[PtyManager] getSession called for sessionId: ${sessionId}`);
const paths = this.sessionManager.getSessionPaths(sessionId, true);
if (!paths) {
logger.debug(`[PtyManager] No session paths found for ${sessionId}`);
return null;
}
const sessionInfo = this.sessionManager.loadSessionInfo(sessionId);
if (!sessionInfo) {
logger.debug(`[PtyManager] No session info found for ${sessionId}`);
return null;
}
// Create Session object with the id field
const session: Session = {
...sessionInfo,
id: sessionId, // Ensure the id field is set
lastModified: sessionInfo.startedAt,
};
if (fs.existsSync(paths.stdoutPath)) {
const lastModified = fs.statSync(paths.stdoutPath).mtime.toISOString();
session.lastModified = lastModified;
}
logger.debug(`[PtyManager] Found session: ${JSON.stringify(session)}`);
return session;
}
getSessionPaths(sessionId: string) {
return this.sessionManager.getSessionPaths(sessionId);
}
/**
* Cleanup a specific session
*/
cleanupSession(sessionId: string): void {
// Kill active session if exists (fire-and-forget for cleanup)
if (this.sessions.has(sessionId)) {
this.killSession(sessionId).catch((error) => {
logger.error(`Failed to kill session ${sessionId} during cleanup:`, error);
});
}
// Remove from storage
this.sessionManager.cleanupSession(sessionId);
// Clean up socket connection if any
const socket = this.inputSocketClients.get(sessionId);
if (socket) {
socket.destroy();
this.inputSocketClients.delete(sessionId);
}
}
/**
* Cleanup all exited sessions
*/
cleanupExitedSessions(): string[] {
return this.sessionManager.cleanupExitedSessions();
}
/**
* Create environment variables for sessions
*/
private createEnvVars(term: string): Record<string, string> {
const envVars: Record<string, string> = {
TERM: term,
};
// Include other important terminal-related environment variables if they exist
const importantVars = ['SHELL', 'LANG', 'LC_ALL', 'PATH', 'USER', 'HOME'];
for (const varName of importantVars) {
const value = process.env[varName];
if (value) {
envVars[varName] = value;
}
}
return envVars;
}
/**
* Get active session count
*/
getActiveSessionCount(): number {
return this.sessions.size;
}
/**
* Check if a session is active (has running PTY)
*/
isSessionActive(sessionId: string): boolean {
return this.sessions.has(sessionId);
}
/**
* Shutdown all active sessions and clean up resources
*/
async shutdown(): Promise<void> {
for (const [sessionId, session] of Array.from(this.sessions.entries())) {
try {
if (session.ptyProcess) {
session.ptyProcess.kill();
// Note: We no longer kill the process group to avoid affecting other sessions
// that might share the same process group (e.g., multiple fwd.ts instances)
// The shutdown() method is only called during server shutdown where we DO want
// to clean up all sessions, but we still avoid process group kills to be safe
}
if (session.asciinemaWriter?.isOpen()) {
await session.asciinemaWriter.close();
}
// Clean up all session resources
this.cleanupSessionResources(session);
} catch (error) {
logger.error(`Failed to cleanup session ${sessionId} during shutdown:`, error);
}
}
this.sessions.clear();
// Clean up all socket clients
for (const [_sessionId, socket] of this.inputSocketClients.entries()) {
try {
socket.destroy();
} catch (_e) {
// Socket already destroyed
}
}
this.inputSocketClients.clear();
// Clean up resize event listeners
for (const removeListener of this.resizeEventListeners) {
try {
removeListener();
} catch (error) {
logger.error('Failed to remove resize event listener:', error);
}
}
this.resizeEventListeners.length = 0;
}
/**
* Get session manager instance
*/
getSessionManager(): SessionManager {
return this.sessionManager;
}
/**
* Write activity state only if it has changed
*/
private writeActivityState(session: PtySession, activityState: ActivityState): void {
const activityPath = path.join(session.controlDir, 'claude-activity.json');
const activityData = {
isActive: activityState.isActive,
specificStatus: activityState.specificStatus,
timestamp: new Date().toISOString(),
};
const stateJson = JSON.stringify(activityData);
const lastState = this.lastWrittenActivityState.get(session.id);
if (lastState !== stateJson) {
try {
fs.writeFileSync(activityPath, JSON.stringify(activityData, null, 2));
this.lastWrittenActivityState.set(session.id, stateJson);
// Debug log first write
if (!session.activityFileWritten) {
session.activityFileWritten = true;
logger.debug(`Writing activity state to ${activityPath} for session ${session.id}`, {
activityState,
timestamp: activityData.timestamp,
});
}
} catch (error) {
logger.error(`Failed to write activity state for session ${session.id}:`, error);
}
}
}
/**
* Track and emit events for proper cleanup
*/
private trackAndEmit(event: string, sessionId: string, ...args: unknown[]): void {
const listeners = this.listeners(event) as ((...args: unknown[]) => void)[];
if (!this.sessionEventListeners.has(sessionId)) {
this.sessionEventListeners.set(sessionId, new Set());
}
const sessionListeners = this.sessionEventListeners.get(sessionId);
if (!sessionListeners) {
return;
}
listeners.forEach((listener) => sessionListeners.add(listener));
this.emit(event, sessionId, ...args);
}
/**
* Clean up all resources associated with a session
*/
private cleanupSessionResources(session: PtySession): void {
// Clean up resize tracking
this.sessionResizeSources.delete(session.id);
// Clean up title update interval for dynamic mode
if (session.titleUpdateInterval) {
clearInterval(session.titleUpdateInterval);
session.titleUpdateInterval = undefined;
}
// Clean up activity detector
if (session.activityDetector) {
session.activityDetector.clearStatus();
session.activityDetector = undefined;
}
// Clean up title filter
if (session.titleFilter) {
// No need to reset, just remove reference
session.titleFilter = undefined;
}
// Clean up session.json watcher/interval
if (session.sessionJsonWatcher) {
session.sessionJsonWatcher.close();
session.sessionJsonWatcher = undefined;
}
if (session.sessionJsonInterval) {
clearInterval(session.sessionJsonInterval);
session.sessionJsonInterval = undefined;
}
// Clean up connected socket clients
if (session.connectedClients) {
for (const client of session.connectedClients) {
try {
client.destroy();
} catch (_e) {
// Client already destroyed
}
}
session.connectedClients.clear();
}
// Clean up input socket server
if (session.inputSocketServer) {
// Close the server and wait for it to close
session.inputSocketServer.close();
// Unref the server so it doesn't keep the process alive
session.inputSocketServer.unref();
try {
fs.unlinkSync(path.join(session.controlDir, 'ipc.sock'));
} catch (_e) {
// Socket already removed
}
}
// Note: stdin handling is done via IPC socket, no global listeners to clean up
// Remove all event listeners for this session
const listeners = this.sessionEventListeners.get(session.id);
if (listeners) {
listeners.forEach((listener) => {
this.removeListener('sessionNameChanged', listener);
this.removeListener('watcherError', listener);
this.removeListener('bell', listener);
});
this.sessionEventListeners.delete(session.id);
}
// Clean up activity state tracking
this.lastWrittenActivityState.delete(session.id);
// Clean up title injection timer
if (session.titleInjectionTimer) {
clearInterval(session.titleInjectionTimer);
session.titleInjectionTimer = undefined;
}
}
/**
* Mark session for title update and trigger immediate check
*/
private markTitleUpdateNeeded(session: PtySession): void {
logger.debug(`[markTitleUpdateNeeded] Called for session ${session.id}`, {
titleMode: session.titleMode,
sessionName: session.sessionInfo.name,
titleUpdateNeeded: session.titleUpdateNeeded,
});
if (!session.titleMode || session.titleMode === TitleMode.NONE) {
logger.debug(`[markTitleUpdateNeeded] Skipping - title mode is NONE or undefined`);
return;
}
session.titleUpdateNeeded = true;
logger.debug(`[markTitleUpdateNeeded] Set titleUpdateNeeded=true, calling checkAndUpdateTitle`);
this.checkAndUpdateTitle(session);
}
/**
* Update terminal title specifically for session name changes
* This bypasses title mode checks to ensure name changes are always reflected
*/
private updateTerminalTitleForSessionName(session: PtySession): void {
if (!session.stdoutQueue || !session.isExternalTerminal) {
logger.debug(
`[updateTerminalTitleForSessionName] Early return - no stdout queue or not external terminal`
);
return;
}
// For NONE mode, just use the session name
// For other modes, regenerate the title with the new name
let newTitle: string | null = null;
if (
!session.titleMode ||
session.titleMode === TitleMode.NONE ||
session.titleMode === TitleMode.FILTER
) {
// In NONE or FILTER mode, use simple session name
newTitle = generateTitleSequence(
session.currentWorkingDir || session.sessionInfo.workingDir,
session.sessionInfo.command,
session.sessionInfo.name || 'VibeTunnel'
);
} else {
// For STATIC and DYNAMIC modes, use the standard generation logic
newTitle = this.generateTerminalTitle(session);
}
if (newTitle && newTitle !== session.currentTitle) {
logger.debug(`[updateTerminalTitleForSessionName] Updating title for session name change`);
session.pendingTitleToInject = newTitle;
session.titleUpdateNeeded = true;
// Start injection monitor if not already running
if (!session.titleInjectionTimer) {
this.startTitleInjectionMonitor(session);
}
}
}
/**
* Check if title needs updating and write if changed
*/
private checkAndUpdateTitle(session: PtySession): void {
logger.debug(`[checkAndUpdateTitle] Called for session ${session.id}`, {
titleUpdateNeeded: session.titleUpdateNeeded,
hasStdoutQueue: !!session.stdoutQueue,
isExternalTerminal: session.isExternalTerminal,
sessionName: session.sessionInfo.name,
});
if (!session.titleUpdateNeeded || !session.stdoutQueue || !session.isExternalTerminal) {
logger.debug(`[checkAndUpdateTitle] Early return - conditions not met`);
return;
}
// Generate new title
logger.debug(`[checkAndUpdateTitle] Generating new title...`);
const newTitle = this.generateTerminalTitle(session);
// Debug logging for title updates
logger.debug(`[Title Update] Session ${session.id}:`, {
sessionName: session.sessionInfo.name,
newTitle: newTitle ? `${newTitle.substring(0, 50)}...` : null,
currentTitle: session.currentTitle ? `${session.currentTitle.substring(0, 50)}...` : null,
titleChanged: newTitle !== session.currentTitle,
});
// Only proceed if title changed
if (newTitle && newTitle !== session.currentTitle) {
logger.debug(`[checkAndUpdateTitle] Title changed, queueing for injection`);
// Store pending title
session.pendingTitleToInject = newTitle;
// Start injection monitor if not already running
if (!session.titleInjectionTimer) {
logger.debug(`[checkAndUpdateTitle] Starting title injection monitor`);
this.startTitleInjectionMonitor(session);
}
} else {
logger.debug(`[checkAndUpdateTitle] Title unchanged or null, skipping injection`, {
newTitleNull: !newTitle,
titlesEqual: newTitle === session.currentTitle,
});
}
// Clear flag
session.titleUpdateNeeded = false;
}
/**
* Monitor for quiet period to safely inject title
*/
private startTitleInjectionMonitor(session: PtySession): void {
// Run periodically to find quiet period
session.titleInjectionTimer = setInterval(() => {
if (!session.pendingTitleToInject || !session.stdoutQueue) {
// No title to inject or session ended, stop monitor
if (session.titleInjectionTimer) {
clearInterval(session.titleInjectionTimer);
session.titleInjectionTimer = undefined;
}
return;
}
const now = Date.now();
const timeSinceLastWrite = now - (session.lastWriteTimestamp || 0);
// Check for quiet period and not already injecting
if (
timeSinceLastWrite >= TITLE_INJECTION_QUIET_PERIOD_MS &&
!session.titleInjectionInProgress
) {
// Safe to inject title - capture the title before clearing it
const titleToInject = session.pendingTitleToInject;
if (!titleToInject) {
return;
}
// Mark injection as in progress
session.titleInjectionInProgress = true;
// Update timestamp immediately to prevent quiet period violations
session.lastWriteTimestamp = Date.now();
session.stdoutQueue.enqueue(async () => {
try {
logger.debug(`[Title Injection] Writing title to stdout for session ${session.id}:`, {
title: `${titleToInject.substring(0, 50)}...`,
});
const canWrite = process.stdout.write(titleToInject);
if (!canWrite) {
await once(process.stdout, 'drain');
}
// Update tracking after successful write
session.currentTitle = titleToInject;
logger.debug(`[Title Injection] Successfully injected title for session ${session.id}`);
// Clear pending title only after successful write
if (session.pendingTitleToInject === titleToInject) {
session.pendingTitleToInject = undefined;
}
// If no more titles pending, stop monitor
if (!session.pendingTitleToInject && session.titleInjectionTimer) {
clearInterval(session.titleInjectionTimer);
session.titleInjectionTimer = undefined;
}
} finally {
// Always clear the in-progress flag
session.titleInjectionInProgress = false;
}
});
logger.debug(
`Injected title during quiet period (${timeSinceLastWrite}ms) for session ${session.id}`
);
}
}, TITLE_INJECTION_CHECK_INTERVAL_MS);
}
/**
* Generate terminal title based on session mode and state
*/
private generateTerminalTitle(session: PtySession): string | null {
if (!session.titleMode || session.titleMode === TitleMode.NONE) {
return null;
}
const currentDir = session.currentWorkingDir || session.sessionInfo.workingDir;
logger.debug(`[generateTerminalTitle] Session ${session.id}:`, {
titleMode: session.titleMode,
sessionName: session.sessionInfo.name,
sessionInfoObjectId: session.sessionInfo,
currentDir,
command: session.sessionInfo.command,
activityDetectorExists: !!session.activityDetector,
});
if (session.titleMode === TitleMode.STATIC) {
return generateTitleSequence(
currentDir,
session.sessionInfo.command,
session.sessionInfo.name
);
} else if (session.titleMode === TitleMode.DYNAMIC && session.activityDetector) {
const activity = session.activityDetector.getActivityState();
logger.debug(`[generateTerminalTitle] Calling generateDynamicTitle with:`, {
currentDir,
command: session.sessionInfo.command,
sessionName: session.sessionInfo.name,
activity: activity,
});
return generateDynamicTitle(
currentDir,
session.sessionInfo.command,
activity,
session.sessionInfo.name,
session.sessionInfo.gitRepoPath,
undefined // Git branch will be fetched dynamically when needed
);
}
return null;
}
/**
* Start tracking foreground process for command completion notifications
*/
private startForegroundProcessTracking(session: PtySession): void {
if (!session.ptyProcess) return;
logger.debug(`Starting foreground process tracking for session ${session.id}`);
const ptyPid = session.ptyProcess.pid;
// Get the shell's process group ID (pgid)
this.getProcessPgid(ptyPid)
.then((shellPgid) => {
if (shellPgid) {
session.shellPgid = shellPgid;
session.currentForegroundPgid = shellPgid;
logger.info(
`🔔 NOTIFICATION DEBUG: Starting command tracking for session ${session.id} - shellPgid: ${shellPgid}, polling every ${PROCESS_POLL_INTERVAL_MS}ms`
);
logger.debug(`Session ${session.id}: Shell PGID is ${shellPgid}, starting polling`);
// Start polling for foreground process changes
session.processPollingInterval = setInterval(() => {
this.checkForegroundProcess(session);
}, PROCESS_POLL_INTERVAL_MS);
} else {
logger.warn(`Session ${session.id}: Could not get shell PGID`);
}
})
.catch((err) => {
logger.warn(`Failed to get shell PGID for session ${session.id}:`, err);
});
}
/**
* Get process group ID for a process
*/
private async getProcessPgid(pid: number): Promise<number | null> {
try {
const { stdout } = await this.execAsync(`ps -o pgid= -p ${pid}`, { timeout: 1000 });
const pgid = Number.parseInt(stdout.trim(), 10);
return Number.isNaN(pgid) ? null : pgid;
} catch (_error) {
return null;
}
}
/**
* Get the foreground process group of a terminal
*/
private async getTerminalForegroundPgid(session: PtySession): Promise<number | null> {
if (!session.ptyProcess) return null;
try {
// On Unix-like systems, we can check the terminal's foreground process group
// biome-ignore lint/suspicious/noExplicitAny: Accessing internal node-pty property
const ttyName = (session.ptyProcess as any)._pty; // Internal PTY name
if (!ttyName) {
logger.debug(`Session ${session.id}: No TTY name found, falling back to process tree`);
return this.getForegroundFromProcessTree(session);
}
// Use ps to find processes associated with this terminal
const psCommand = `ps -t ${ttyName} -o pgid,pid,ppid,command | grep -v PGID | head -1`;
const { stdout } = await this.execAsync(psCommand, { timeout: 1000 });
const lines = stdout.trim().split('\n');
if (lines.length > 0 && lines[0].trim()) {
const parts = lines[0].trim().split(/\s+/);
const pgid = Number.parseInt(parts[0], 10);
// Log the raw ps output for debugging
logger.debug(`Session ${session.id}: ps output for TTY ${ttyName}: "${lines[0].trim()}"`);
if (!Number.isNaN(pgid)) {
return pgid;
}
}
logger.debug(`Session ${session.id}: Could not parse PGID from ps output, falling back`);
} catch (error) {
logger.debug(`Session ${session.id}: Error getting terminal PGID: ${error}, falling back`);
// Fallback: try to get foreground process from process tree
return this.getForegroundFromProcessTree(session);
}
return null;
}
/**
* Get foreground process from process tree analysis
*/
private async getForegroundFromProcessTree(session: PtySession): Promise<number | null> {
if (!session.ptyProcess) return null;
try {
const processTree = await this.processTreeAnalyzer.getProcessTree(session.ptyProcess.pid);
// Find the most recent non-shell process
for (const proc of processTree) {
if (proc.pgid !== session.shellPgid && proc.command && !this.isShellProcess(proc.command)) {
return proc.pgid;
}
}
} catch (error) {
logger.debug(`Failed to analyze process tree for session ${session.id}:`, error);
}
return session.shellPgid || null;
}
/**
* Check if a command is a shell process
*/
private isShellProcess(command: string): boolean {
const shellNames = ['bash', 'zsh', 'fish', 'sh', 'dash', 'tcsh', 'csh'];
const cmdLower = command.toLowerCase();
return shellNames.some((shell) => cmdLower.includes(shell));
}
/**
* Check current foreground process and detect changes
*/
private async checkForegroundProcess(session: PtySession): Promise<void> {
if (!session.ptyProcess || !session.shellPgid) return;
try {
const currentPgid = await this.getTerminalForegroundPgid(session);
// Enhanced debug logging
const timestamp = new Date().toISOString();
logger.debug(
chalk.gray(
`[${timestamp}] Session ${session.id} PGID check: current=${currentPgid}, previous=${session.currentForegroundPgid}, shell=${session.shellPgid}`
)
);
// Add debug logging
if (currentPgid !== session.currentForegroundPgid) {
logger.info(
`🔔 NOTIFICATION DEBUG: PGID change detected - sessionId: ${session.id}, from ${session.currentForegroundPgid} to ${currentPgid}, shellPgid: ${session.shellPgid}`
);
logger.debug(
chalk.yellow(
`Session ${session.id}: Foreground PGID changed from ${session.currentForegroundPgid} to ${currentPgid}`
)
);
}
if (currentPgid && currentPgid !== session.currentForegroundPgid) {
// Foreground process changed
const previousPgid = session.currentForegroundPgid;
session.currentForegroundPgid = currentPgid;
if (currentPgid === session.shellPgid && previousPgid !== session.shellPgid) {
// A command just finished (returned to shell)
logger.debug(
chalk.green(
`Session ${session.id}: Command finished, returning to shell (PGID ${previousPgid}${currentPgid})`
)
);
await this.handleCommandFinished(session, previousPgid);
} else if (currentPgid !== session.shellPgid) {
// A new command started
logger.debug(
chalk.blue(`Session ${session.id}: New command started (PGID ${currentPgid})`)
);
await this.handleCommandStarted(session, currentPgid);
}
}
} catch (error) {
logger.debug(`Error checking foreground process for session ${session.id}:`, error);
}
}
/**
* Handle when a new command starts
*/
private async handleCommandStarted(session: PtySession, pgid: number): Promise<void> {
try {
// Get command info from process tree
if (!session.ptyProcess) return;
const processTree = await this.processTreeAnalyzer.getProcessTree(session.ptyProcess.pid);
const commandProc = processTree.find((p) => p.pgid === pgid);
if (commandProc) {
session.currentCommand = commandProc.command;
session.commandStartTime = Date.now();
// Special logging for Claude commands
const isClaudeCommand = commandProc.command.toLowerCase().includes('claude');
if (isClaudeCommand) {
logger.log(
chalk.cyan(
`🤖 Session ${session.id}: Claude command started: "${commandProc.command}" (PGID: ${pgid})`
)
);
} else {
logger.debug(
`Session ${session.id}: Command started: "${commandProc.command}" (PGID: ${pgid})`
);
}
// Log process tree for debugging
logger.debug(
`Process tree for session ${session.id}:`,
processTree.map((p) => ` PID: ${p.pid}, PGID: ${p.pgid}, CMD: ${p.command}`).join('\n')
);
} else {
logger.warn(
chalk.yellow(`Session ${session.id}: Could not find process info for PGID ${pgid}`)
);
}
} catch (error) {
logger.debug(`Failed to get command info for session ${session.id}:`, error);
}
}
/**
* Handle when a command finishes
*/
private async handleCommandFinished(
session: PtySession,
pgid: number | undefined
): Promise<void> {
if (!pgid || !session.commandStartTime || !session.currentCommand) {
logger.debug(
chalk.red(
`Session ${session.id}: Cannot handle command finished - missing data: pgid=${pgid}, startTime=${session.commandStartTime}, command="${session.currentCommand}"`
)
);
return;
}
const duration = Date.now() - session.commandStartTime;
const command = session.currentCommand;
const isClaudeCommand = command.toLowerCase().includes('claude');
// Reset tracking
session.currentCommand = undefined;
session.commandStartTime = undefined;
// Log command completion for Claude
if (isClaudeCommand) {
logger.log(
chalk.cyan(
`🤖 Session ${session.id}: Claude command completed: "${command}" (duration: ${duration}ms)`
)
);
}
// Check if we should notify - bypass duration check for Claude commands
if (!isClaudeCommand && duration < MIN_COMMAND_DURATION_MS) {
logger.debug(
`Session ${session.id}: Command "${command}" too short (${duration}ms < ${MIN_COMMAND_DURATION_MS}ms), not notifying`
);
return;
}
// Log duration for Claude commands even if bypassing the check
if (isClaudeCommand && duration < MIN_COMMAND_DURATION_MS) {
logger.log(
chalk.yellow(
`⚡ Session ${session.id}: Claude command completed quickly (${duration}ms) - still notifying`
)
);
}
// Check if it's a built-in shell command
const baseCommand = command.split(/\s+/)[0];
if (SHELL_COMMANDS.has(baseCommand)) {
logger.debug(`Session ${session.id}: Ignoring built-in command: ${baseCommand}`);
return;
}
// Try to get exit code (this is tricky and might not always work)
const exitCode = 0;
try {
// Check if we can find the exit status in shell history or process info
// This is platform-specific and might not be reliable
const { stdout } = await this.execAsync(
`ps -o pid,stat -p ${pgid} 2>/dev/null || echo "NOTFOUND"`,
{ timeout: 500 }
);
if (stdout.includes('NOTFOUND') || stdout.includes('Z')) {
// Process is zombie or not found, likely exited
// We can't reliably get exit code this way
logger.debug(
`Session ${session.id}: Process ${pgid} not found or zombie, assuming exit code 0`
);
}
} catch (_error) {
// Ignore errors in exit code detection
logger.debug(`Session ${session.id}: Could not detect exit code for process ${pgid}`);
}
// Emit the event
const eventData = {
sessionId: session.id,
command,
exitCode,
duration,
timestamp: new Date().toISOString(),
};
logger.info(
`🔔 NOTIFICATION DEBUG: Emitting commandFinished event - sessionId: ${session.id}, command: "${command}", duration: ${duration}ms, exitCode: ${exitCode}`
);
this.emit('commandFinished', eventData);
// Send notification to Mac app
if (controlUnixHandler.isMacAppConnected()) {
const notifTitle = isClaudeCommand ? 'Claude Task Finished' : 'Command Finished';
const notifBody = `"${command}" completed in ${Math.round(duration / 1000)}s.`;
logger.info(
`🔔 NOTIFICATION DEBUG: Sending command notification to Mac - title: "${notifTitle}", body: "${notifBody}"`
);
controlUnixHandler.sendNotification('Your Turn', notifBody, {
type: 'your-turn',
sessionId: session.id,
sessionName: session.sessionInfo.name || session.sessionInfo.command.join(' '),
});
} else {
logger.warn(
'🔔 NOTIFICATION DEBUG: Cannot send command notification - Mac app not connected'
);
}
// Enhanced logging for events
if (isClaudeCommand) {
logger.log(
chalk.green(
`✅ Session ${session.id}: Claude command notification event emitted: "${command}" (duration: ${duration}ms, exit: ${exitCode})`
)
);
} else {
logger.log(`Session ${session.id}: Command finished: "${command}" (duration: ${duration}ms)`);
}
logger.debug(`Session ${session.id}: commandFinished event data:`, eventData);
}
/**
* Import necessary exec function
*/
private execAsync = promisify(exec);
}