693 lines
28 KiB
TypeScript
693 lines
28 KiB
TypeScript
import * as plugins from './plugins.js';
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/** Domain configuration with per-domain allowed port ranges */
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export interface IDomainConfig {
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domains: string[]; // Glob patterns for domain(s)
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allowedIPs: string[]; // Glob patterns for allowed IPs
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blockedIPs?: string[]; // Glob patterns for blocked IPs
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targetIPs?: string[]; // If multiple targetIPs are given, use round robin.
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portRanges?: Array<{ from: number; to: number }>; // Optional port ranges
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}
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/** Port proxy settings including global allowed port ranges */
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export interface IPortProxySettings extends plugins.tls.TlsOptions {
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fromPort: number;
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toPort: number;
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targetIP?: string; // Global target host to proxy to, defaults to 'localhost'
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domainConfigs: IDomainConfig[];
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sniEnabled?: boolean;
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defaultAllowedIPs?: string[];
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defaultBlockedIPs?: string[];
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preserveSourceIP?: boolean;
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maxConnectionLifetime?: number; // (ms) force cleanup of long-lived connections
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globalPortRanges: Array<{ from: number; to: number }>; // Global allowed port ranges
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forwardAllGlobalRanges?: boolean; // When true, forwards all connections on global port ranges to the global targetIP
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gracefulShutdownTimeout?: number; // (ms) maximum time to wait for connections to close during shutdown
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}
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/**
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* Extracts the SNI (Server Name Indication) from a TLS ClientHello packet.
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* @param buffer - Buffer containing the TLS ClientHello.
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* @returns The server name if found, otherwise undefined.
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*/
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function extractSNI(buffer: Buffer): string | undefined {
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let offset = 0;
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if (buffer.length < 5) return undefined;
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const recordType = buffer.readUInt8(0);
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if (recordType !== 22) return undefined; // 22 = handshake
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const recordLength = buffer.readUInt16BE(3);
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if (buffer.length < 5 + recordLength) return undefined;
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offset = 5;
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const handshakeType = buffer.readUInt8(offset);
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if (handshakeType !== 1) return undefined; // 1 = ClientHello
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offset += 4; // Skip handshake header (type + length)
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offset += 2 + 32; // Skip client version and random
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const sessionIDLength = buffer.readUInt8(offset);
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offset += 1 + sessionIDLength; // Skip session ID
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const cipherSuitesLength = buffer.readUInt16BE(offset);
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offset += 2 + cipherSuitesLength; // Skip cipher suites
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const compressionMethodsLength = buffer.readUInt8(offset);
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offset += 1 + compressionMethodsLength; // Skip compression methods
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if (offset + 2 > buffer.length) return undefined;
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const extensionsLength = buffer.readUInt16BE(offset);
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offset += 2;
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const extensionsEnd = offset + extensionsLength;
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while (offset + 4 <= extensionsEnd) {
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const extensionType = buffer.readUInt16BE(offset);
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const extensionLength = buffer.readUInt16BE(offset + 2);
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offset += 4;
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if (extensionType === 0x0000) { // SNI extension
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if (offset + 2 > buffer.length) return undefined;
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const sniListLength = buffer.readUInt16BE(offset);
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offset += 2;
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const sniListEnd = offset + sniListLength;
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while (offset + 3 < sniListEnd) {
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const nameType = buffer.readUInt8(offset++);
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const nameLen = buffer.readUInt16BE(offset);
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offset += 2;
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if (nameType === 0) { // host_name
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if (offset + nameLen > buffer.length) return undefined;
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return buffer.toString('utf8', offset, offset + nameLen);
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}
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offset += nameLen;
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}
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break;
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} else {
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offset += extensionLength;
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}
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}
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return undefined;
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}
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interface IConnectionRecord {
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id: string; // Unique connection identifier
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incoming: plugins.net.Socket;
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outgoing: plugins.net.Socket | null;
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incomingStartTime: number;
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outgoingStartTime?: number;
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outgoingClosedTime?: number;
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lockedDomain?: string; // Used to lock this connection to the initial SNI
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connectionClosed: boolean; // Flag to prevent multiple cleanup attempts
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cleanupTimer?: NodeJS.Timeout; // Timer for max lifetime/inactivity
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lastActivity: number; // Last activity timestamp for inactivity detection
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}
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// Helper: Check if a port falls within any of the given port ranges
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const isPortInRanges = (port: number, ranges: Array<{ from: number; to: number }>): boolean => {
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return ranges.some(range => port >= range.from && port <= range.to);
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};
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// Helper: Check if a given IP matches any of the glob patterns
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const isAllowed = (ip: string, patterns: string[]): boolean => {
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const normalizeIP = (ip: string): string[] => {
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if (ip.startsWith('::ffff:')) {
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const ipv4 = ip.slice(7);
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return [ip, ipv4];
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}
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if (/^\d{1,3}(\.\d{1,3}){3}$/.test(ip)) {
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return [ip, `::ffff:${ip}`];
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}
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return [ip];
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};
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const normalizedIPVariants = normalizeIP(ip);
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const expandedPatterns = patterns.flatMap(normalizeIP);
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return normalizedIPVariants.some(ipVariant =>
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expandedPatterns.some(pattern => plugins.minimatch(ipVariant, pattern))
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);
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};
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// Helper: Check if an IP is allowed considering allowed and blocked glob patterns
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const isGlobIPAllowed = (ip: string, allowed: string[], blocked: string[] = []): boolean => {
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if (blocked.length > 0 && isAllowed(ip, blocked)) return false;
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return isAllowed(ip, allowed);
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};
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// Helper: Generate a unique connection ID
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const generateConnectionId = (): string => {
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return Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15);
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};
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export class PortProxy {
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private netServers: plugins.net.Server[] = [];
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settings: IPortProxySettings;
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private connectionRecords: Map<string, IConnectionRecord> = new Map();
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private connectionLogger: NodeJS.Timeout | null = null;
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private isShuttingDown: boolean = false;
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// Map to track round robin indices for each domain config
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private domainTargetIndices: Map<IDomainConfig, number> = new Map();
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private terminationStats: {
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incoming: Record<string, number>;
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outgoing: Record<string, number>;
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} = {
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incoming: {},
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outgoing: {},
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};
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constructor(settingsArg: IPortProxySettings) {
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this.settings = {
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...settingsArg,
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targetIP: settingsArg.targetIP || 'localhost',
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maxConnectionLifetime: settingsArg.maxConnectionLifetime || 600000,
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gracefulShutdownTimeout: settingsArg.gracefulShutdownTimeout || 30000,
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};
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}
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private incrementTerminationStat(side: 'incoming' | 'outgoing', reason: string): void {
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this.terminationStats[side][reason] = (this.terminationStats[side][reason] || 0) + 1;
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}
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/**
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* Cleans up a connection record.
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* Destroys both incoming and outgoing sockets, clears timers, and removes the record.
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* @param record - The connection record to clean up
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* @param reason - Optional reason for cleanup (for logging)
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*/
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private cleanupConnection(record: IConnectionRecord, reason: string = 'normal'): void {
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if (!record.connectionClosed) {
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record.connectionClosed = true;
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if (record.cleanupTimer) {
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clearTimeout(record.cleanupTimer);
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record.cleanupTimer = undefined;
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}
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try {
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if (!record.incoming.destroyed) {
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// Try graceful shutdown first, then force destroy after a short timeout
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record.incoming.end();
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setTimeout(() => {
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if (record && !record.incoming.destroyed) {
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record.incoming.destroy();
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}
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}, 1000);
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}
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} catch (err) {
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console.log(`Error closing incoming socket: ${err}`);
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if (!record.incoming.destroyed) {
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record.incoming.destroy();
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}
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}
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try {
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if (record.outgoing && !record.outgoing.destroyed) {
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// Try graceful shutdown first, then force destroy after a short timeout
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record.outgoing.end();
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setTimeout(() => {
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if (record && record.outgoing && !record.outgoing.destroyed) {
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record.outgoing.destroy();
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}
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}, 1000);
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}
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} catch (err) {
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console.log(`Error closing outgoing socket: ${err}`);
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if (record.outgoing && !record.outgoing.destroyed) {
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record.outgoing.destroy();
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}
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}
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// Remove the record from the tracking map
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this.connectionRecords.delete(record.id);
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const remoteIP = record.incoming.remoteAddress || 'unknown';
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console.log(`Connection from ${remoteIP} terminated (${reason}). Active connections: ${this.connectionRecords.size}`);
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}
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}
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private updateActivity(record: IConnectionRecord): void {
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record.lastActivity = Date.now();
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}
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private getTargetIP(domainConfig: IDomainConfig): string {
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if (domainConfig.targetIPs && domainConfig.targetIPs.length > 0) {
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const currentIndex = this.domainTargetIndices.get(domainConfig) || 0;
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const ip = domainConfig.targetIPs[currentIndex % domainConfig.targetIPs.length];
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this.domainTargetIndices.set(domainConfig, currentIndex + 1);
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return ip;
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}
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return this.settings.targetIP!;
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}
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public async start() {
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// Define a unified connection handler for all listening ports.
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const connectionHandler = (socket: plugins.net.Socket) => {
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if (this.isShuttingDown) {
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socket.end();
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socket.destroy();
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return;
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}
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const remoteIP = socket.remoteAddress || '';
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const localPort = socket.localPort; // The port on which this connection was accepted.
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const connectionId = generateConnectionId();
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const connectionRecord: IConnectionRecord = {
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id: connectionId,
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incoming: socket,
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outgoing: null,
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incomingStartTime: Date.now(),
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lastActivity: Date.now(),
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connectionClosed: false
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};
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this.connectionRecords.set(connectionId, connectionRecord);
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console.log(`New connection from ${remoteIP} on port ${localPort}. Active connections: ${this.connectionRecords.size}`);
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let initialDataReceived = false;
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let incomingTerminationReason: string | null = null;
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let outgoingTerminationReason: string | null = null;
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// Local function for cleanupOnce
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const cleanupOnce = () => {
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this.cleanupConnection(connectionRecord);
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};
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// Define initiateCleanupOnce for compatibility with potential future improvements
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const initiateCleanupOnce = (reason: string = 'normal') => {
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console.log(`Connection cleanup initiated for ${remoteIP} (${reason})`);
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cleanupOnce();
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};
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// Helper to reject an incoming connection
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const rejectIncomingConnection = (reason: string, logMessage: string) => {
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console.log(logMessage);
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socket.end();
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if (incomingTerminationReason === null) {
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incomingTerminationReason = reason;
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this.incrementTerminationStat('incoming', reason);
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}
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cleanupOnce();
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};
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// Set an initial timeout for SNI data if needed
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let initialTimeout: NodeJS.Timeout | null = null;
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if (this.settings.sniEnabled) {
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initialTimeout = setTimeout(() => {
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if (!initialDataReceived) {
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console.log(`Initial data timeout for ${remoteIP}`);
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socket.end();
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cleanupOnce();
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}
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}, 5000);
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} else {
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initialDataReceived = true;
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}
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socket.on('error', (err: Error) => {
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console.log(`Incoming socket error from ${remoteIP}: ${err.message}`);
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});
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const handleError = (side: 'incoming' | 'outgoing') => (err: Error) => {
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const code = (err as any).code;
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let reason = 'error';
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if (code === 'ECONNRESET') {
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reason = 'econnreset';
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console.log(`ECONNRESET on ${side} side from ${remoteIP}: ${err.message}`);
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} else {
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console.log(`Error on ${side} side from ${remoteIP}: ${err.message}`);
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}
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if (side === 'incoming' && incomingTerminationReason === null) {
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incomingTerminationReason = reason;
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this.incrementTerminationStat('incoming', reason);
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} else if (side === 'outgoing' && outgoingTerminationReason === null) {
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outgoingTerminationReason = reason;
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this.incrementTerminationStat('outgoing', reason);
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}
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initiateCleanupOnce(reason);
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};
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const handleClose = (side: 'incoming' | 'outgoing') => () => {
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console.log(`Connection closed on ${side} side from ${remoteIP}`);
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if (side === 'incoming' && incomingTerminationReason === null) {
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incomingTerminationReason = 'normal';
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this.incrementTerminationStat('incoming', 'normal');
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} else if (side === 'outgoing' && outgoingTerminationReason === null) {
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outgoingTerminationReason = 'normal';
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this.incrementTerminationStat('outgoing', 'normal');
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// Record the time when outgoing socket closed.
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connectionRecord.outgoingClosedTime = Date.now();
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}
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initiateCleanupOnce('closed_' + side);
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};
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/**
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* Sets up the connection to the target host.
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* @param serverName - The SNI hostname (unused when forcedDomain is provided).
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* @param initialChunk - Optional initial data chunk.
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* @param forcedDomain - If provided, overrides SNI/domain lookup (used for port-based routing).
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* @param overridePort - If provided, use this port for the outgoing connection.
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*/
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const setupConnection = (serverName: string, initialChunk?: Buffer, forcedDomain?: IDomainConfig, overridePort?: number) => {
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// Clear the initial timeout since we've received data
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if (initialTimeout) {
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clearTimeout(initialTimeout);
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initialTimeout = null;
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}
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// If a forcedDomain is provided (port-based routing), use it; otherwise, use SNI-based lookup.
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const domainConfig = forcedDomain
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? forcedDomain
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: (serverName ? this.settings.domainConfigs.find(config =>
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config.domains.some(d => plugins.minimatch(serverName, d))
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) : undefined);
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// IP validation is skipped if allowedIPs is empty
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if (domainConfig) {
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const effectiveAllowedIPs: string[] = [
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...domainConfig.allowedIPs,
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...(this.settings.defaultAllowedIPs || [])
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];
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const effectiveBlockedIPs: string[] = [
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...(domainConfig.blockedIPs || []),
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...(this.settings.defaultBlockedIPs || [])
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];
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// Skip IP validation if allowedIPs is empty
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if (domainConfig.allowedIPs.length > 0 && !isGlobIPAllowed(remoteIP, effectiveAllowedIPs, effectiveBlockedIPs)) {
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return rejectIncomingConnection('rejected', `Connection rejected: IP ${remoteIP} not allowed for domain ${domainConfig.domains.join(', ')}`);
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}
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} else if (this.settings.defaultAllowedIPs && this.settings.defaultAllowedIPs.length > 0) {
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if (!isGlobIPAllowed(remoteIP, this.settings.defaultAllowedIPs, this.settings.defaultBlockedIPs || [])) {
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return rejectIncomingConnection('rejected', `Connection rejected: IP ${remoteIP} not allowed by default allowed list`);
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}
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}
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const targetHost = domainConfig ? this.getTargetIP(domainConfig) : this.settings.targetIP!;
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const connectionOptions: plugins.net.NetConnectOpts = {
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host: targetHost,
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port: overridePort !== undefined ? overridePort : this.settings.toPort,
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};
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if (this.settings.preserveSourceIP) {
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connectionOptions.localAddress = remoteIP.replace('::ffff:', '');
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}
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// Create the target socket and immediately set up data piping
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const targetSocket = plugins.net.connect(connectionOptions);
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connectionRecord.outgoing = targetSocket;
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connectionRecord.outgoingStartTime = Date.now();
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// Set up the pipe immediately to ensure data flows without delay
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if (initialChunk) {
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socket.unshift(initialChunk);
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}
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socket.pipe(targetSocket);
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targetSocket.pipe(socket);
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console.log(
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`Connection established: ${remoteIP} -> ${targetHost}:${connectionOptions.port}` +
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`${serverName ? ` (SNI: ${serverName})` : forcedDomain ? ` (Port-based for domain: ${forcedDomain.domains.join(', ')})` : ''}`
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);
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// Add appropriate handlers for connection management
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socket.on('error', handleError('incoming'));
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targetSocket.on('error', handleError('outgoing'));
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socket.on('close', handleClose('incoming'));
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targetSocket.on('close', handleClose('outgoing'));
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socket.on('timeout', () => {
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console.log(`Timeout on incoming side from ${remoteIP}`);
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if (incomingTerminationReason === null) {
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incomingTerminationReason = 'timeout';
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this.incrementTerminationStat('incoming', 'timeout');
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}
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initiateCleanupOnce('timeout_incoming');
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});
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targetSocket.on('timeout', () => {
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console.log(`Timeout on outgoing side from ${remoteIP}`);
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if (outgoingTerminationReason === null) {
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outgoingTerminationReason = 'timeout';
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this.incrementTerminationStat('outgoing', 'timeout');
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}
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initiateCleanupOnce('timeout_outgoing');
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});
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// Set appropriate timeouts
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socket.setTimeout(120000);
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targetSocket.setTimeout(120000);
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// Update activity for both sockets
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socket.on('data', () => {
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connectionRecord.lastActivity = Date.now();
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});
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targetSocket.on('data', () => {
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connectionRecord.lastActivity = Date.now();
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});
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// Initialize a cleanup timer for max connection lifetime
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if (this.settings.maxConnectionLifetime) {
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connectionRecord.cleanupTimer = setTimeout(() => {
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console.log(`Connection from ${remoteIP} exceeded max lifetime (${this.settings.maxConnectionLifetime}ms), forcing cleanup.`);
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initiateCleanupOnce('max_lifetime');
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}, this.settings.maxConnectionLifetime);
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}
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};
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// --- PORT RANGE-BASED HANDLING ---
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// Only apply port-based rules if the incoming port is within one of the global port ranges.
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if (this.settings.globalPortRanges && isPortInRanges(localPort, this.settings.globalPortRanges)) {
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if (this.settings.forwardAllGlobalRanges) {
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if (this.settings.defaultAllowedIPs && !isAllowed(remoteIP, this.settings.defaultAllowedIPs)) {
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console.log(`Connection from ${remoteIP} rejected: IP ${remoteIP} not allowed in global default allowed list.`);
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socket.end();
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return;
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}
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console.log(`Port-based connection from ${remoteIP} on port ${localPort} forwarded to global target IP ${this.settings.targetIP}.`);
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setupConnection('', undefined, {
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domains: ['global'],
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allowedIPs: this.settings.defaultAllowedIPs || [],
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blockedIPs: this.settings.defaultBlockedIPs || [],
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targetIPs: [this.settings.targetIP!],
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portRanges: []
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}, localPort);
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return;
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} else {
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// Attempt to find a matching forced domain config based on the local port.
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const forcedDomain = this.settings.domainConfigs.find(
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domain => domain.portRanges && domain.portRanges.length > 0 && isPortInRanges(localPort, domain.portRanges)
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);
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if (forcedDomain) {
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const effectiveAllowedIPs: string[] = [
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...forcedDomain.allowedIPs,
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...(this.settings.defaultAllowedIPs || [])
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];
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const effectiveBlockedIPs: string[] = [
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...(forcedDomain.blockedIPs || []),
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...(this.settings.defaultBlockedIPs || [])
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];
|
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if (!isGlobIPAllowed(remoteIP, effectiveAllowedIPs, effectiveBlockedIPs)) {
|
|
console.log(`Connection from ${remoteIP} rejected: IP not allowed for domain ${forcedDomain.domains.join(', ')} on port ${localPort}.`);
|
|
socket.end();
|
|
return;
|
|
}
|
|
console.log(`Port-based connection from ${remoteIP} on port ${localPort} matched domain ${forcedDomain.domains.join(', ')}.`);
|
|
setupConnection('', undefined, forcedDomain, localPort);
|
|
return;
|
|
}
|
|
// Fall through to SNI/default handling if no forced domain config is found.
|
|
}
|
|
}
|
|
|
|
// --- FALLBACK: SNI-BASED HANDLING (or default when SNI is disabled) ---
|
|
if (this.settings.sniEnabled) {
|
|
initialDataReceived = false;
|
|
|
|
socket.once('data', (chunk: Buffer) => {
|
|
if (initialTimeout) {
|
|
clearTimeout(initialTimeout);
|
|
initialTimeout = null;
|
|
}
|
|
|
|
initialDataReceived = true;
|
|
const serverName = extractSNI(chunk) || '';
|
|
// Lock the connection to the negotiated SNI.
|
|
connectionRecord.lockedDomain = serverName;
|
|
console.log(`Received connection from ${remoteIP} with SNI: ${serverName}`);
|
|
|
|
// Delay adding the renegotiation listener until the next tick,
|
|
// so the initial ClientHello is not reprocessed.
|
|
setImmediate(() => {
|
|
socket.on('data', (renegChunk: Buffer) => {
|
|
if (renegChunk.length > 0 && renegChunk.readUInt8(0) === 22) {
|
|
try {
|
|
// Try to extract SNI from potential renegotiation
|
|
const newSNI = extractSNI(renegChunk);
|
|
if (newSNI && newSNI !== connectionRecord.lockedDomain) {
|
|
console.log(`Rehandshake detected with different SNI: ${newSNI} vs locked ${connectionRecord.lockedDomain}. Terminating connection.`);
|
|
initiateCleanupOnce('sni_mismatch');
|
|
} else if (newSNI) {
|
|
console.log(`Rehandshake detected with same SNI: ${newSNI}. Allowing.`);
|
|
}
|
|
} catch (err) {
|
|
console.log(`Error processing potential renegotiation: ${err}. Allowing connection to continue.`);
|
|
}
|
|
}
|
|
});
|
|
});
|
|
|
|
setupConnection(serverName, chunk);
|
|
});
|
|
} else {
|
|
initialDataReceived = true;
|
|
if (!this.settings.defaultAllowedIPs || this.settings.defaultAllowedIPs.length === 0 || !isAllowed(remoteIP, this.settings.defaultAllowedIPs)) {
|
|
return rejectIncomingConnection('rejected', `Connection rejected: IP ${remoteIP} not allowed for non-SNI connection`);
|
|
}
|
|
setupConnection('');
|
|
}
|
|
};
|
|
|
|
// --- SETUP LISTENERS ---
|
|
// Determine which ports to listen on.
|
|
const listeningPorts = new Set<number>();
|
|
if (this.settings.globalPortRanges && this.settings.globalPortRanges.length > 0) {
|
|
// Listen on every port defined by the global ranges.
|
|
for (const range of this.settings.globalPortRanges) {
|
|
for (let port = range.from; port <= range.to; port++) {
|
|
listeningPorts.add(port);
|
|
}
|
|
}
|
|
// Also ensure the default fromPort is listened to if it isn't already in the ranges.
|
|
listeningPorts.add(this.settings.fromPort);
|
|
} else {
|
|
listeningPorts.add(this.settings.fromPort);
|
|
}
|
|
|
|
// Create a server for each port.
|
|
for (const port of listeningPorts) {
|
|
const server = plugins.net
|
|
.createServer(connectionHandler)
|
|
.on('error', (err: Error) => {
|
|
console.log(`Server Error on port ${port}: ${err.message}`);
|
|
});
|
|
server.listen(port, () => {
|
|
console.log(`PortProxy -> OK: Now listening on port ${port}${this.settings.sniEnabled ? ' (SNI passthrough enabled)' : ''}`);
|
|
});
|
|
this.netServers.push(server);
|
|
}
|
|
|
|
// Log active connection count, longest running durations, and run parity checks every 10 seconds.
|
|
this.connectionLogger = setInterval(() => {
|
|
if (this.isShuttingDown) return;
|
|
|
|
const now = Date.now();
|
|
let maxIncoming = 0;
|
|
let maxOutgoing = 0;
|
|
|
|
// Create a copy of the keys to avoid modification during iteration
|
|
const connectionIds = [...this.connectionRecords.keys()];
|
|
|
|
for (const id of connectionIds) {
|
|
const record = this.connectionRecords.get(id);
|
|
if (!record) continue;
|
|
|
|
maxIncoming = Math.max(maxIncoming, now - record.incomingStartTime);
|
|
if (record.outgoingStartTime) {
|
|
maxOutgoing = Math.max(maxOutgoing, now - record.outgoingStartTime);
|
|
}
|
|
|
|
// Parity check: if outgoing socket closed and incoming remains active
|
|
if (record.outgoingClosedTime &&
|
|
!record.incoming.destroyed &&
|
|
!record.connectionClosed &&
|
|
(now - record.outgoingClosedTime > 30000)) {
|
|
const remoteIP = record.incoming.remoteAddress || 'unknown';
|
|
console.log(`Parity check: Incoming socket for ${remoteIP} still active ${plugins.prettyMs(now - record.outgoingClosedTime)} after outgoing closed.`);
|
|
this.cleanupConnection(record, 'parity_check');
|
|
}
|
|
|
|
// Inactivity check
|
|
const inactivityTime = now - record.lastActivity;
|
|
if (inactivityTime > 180000 && // 3 minutes
|
|
!record.connectionClosed) {
|
|
const remoteIP = record.incoming.remoteAddress || 'unknown';
|
|
console.log(`Inactivity check: No activity on connection from ${remoteIP} for ${plugins.prettyMs(inactivityTime)}.`);
|
|
this.cleanupConnection(record, 'inactivity');
|
|
}
|
|
}
|
|
|
|
console.log(
|
|
`(Interval Log) Active connections: ${this.connectionRecords.size}. ` +
|
|
`Longest running incoming: ${plugins.prettyMs(maxIncoming)}, outgoing: ${plugins.prettyMs(maxOutgoing)}. ` +
|
|
`Termination stats (incoming): ${JSON.stringify(this.terminationStats.incoming)}, ` +
|
|
`(outgoing): ${JSON.stringify(this.terminationStats.outgoing)}`
|
|
);
|
|
}, 10000);
|
|
}
|
|
|
|
public async stop() {
|
|
console.log("PortProxy shutting down...");
|
|
this.isShuttingDown = true;
|
|
|
|
// Stop accepting new connections
|
|
const closeServerPromises: Promise<void>[] = this.netServers.map(
|
|
server =>
|
|
new Promise<void>((resolve) => {
|
|
server.close(() => resolve());
|
|
})
|
|
);
|
|
|
|
// Stop the connection logger
|
|
if (this.connectionLogger) {
|
|
clearInterval(this.connectionLogger);
|
|
this.connectionLogger = null;
|
|
}
|
|
|
|
// Wait for servers to close
|
|
await Promise.all(closeServerPromises);
|
|
console.log("All servers closed. Cleaning up active connections...");
|
|
|
|
// Clean up active connections
|
|
const connectionIds = [...this.connectionRecords.keys()];
|
|
console.log(`Cleaning up ${connectionIds.length} active connections...`);
|
|
|
|
for (const id of connectionIds) {
|
|
const record = this.connectionRecords.get(id);
|
|
if (record && !record.connectionClosed) {
|
|
this.cleanupConnection(record, 'shutdown');
|
|
}
|
|
}
|
|
|
|
// Wait for graceful shutdown or timeout
|
|
const shutdownTimeout = this.settings.gracefulShutdownTimeout || 30000;
|
|
await new Promise<void>((resolve) => {
|
|
const checkInterval = setInterval(() => {
|
|
if (this.connectionRecords.size === 0) {
|
|
clearInterval(checkInterval);
|
|
resolve();
|
|
}
|
|
}, 1000);
|
|
|
|
// Force resolve after timeout
|
|
setTimeout(() => {
|
|
clearInterval(checkInterval);
|
|
if (this.connectionRecords.size > 0) {
|
|
console.log(`Forcing shutdown with ${this.connectionRecords.size} connections still active`);
|
|
|
|
// Force destroy any remaining connections
|
|
for (const record of this.connectionRecords.values()) {
|
|
if (!record.incoming.destroyed) {
|
|
record.incoming.destroy();
|
|
}
|
|
if (record.outgoing && !record.outgoing.destroyed) {
|
|
record.outgoing.destroy();
|
|
}
|
|
}
|
|
this.connectionRecords.clear();
|
|
}
|
|
resolve();
|
|
}, shutdownTimeout);
|
|
});
|
|
|
|
console.log("PortProxy shutdown complete.");
|
|
}
|
|
} |