75c3c01f46
基于真实 Claude CLI 2.1.81 抓包数据实现： - POST api.anthropic.com/api/event_logging/batch（请求前后自动发送） - POST http-intake.logs.us5.datadoghq.com/api/v2/logs - 事件类型：tengu_started, tengu_init, tengu_api_request_started/completed - 每个账号独立 session_id + device_id - process_metrics base64 编码（匹配真实格式） - 可通过 TELEMETRY_ENABLED=false 关闭
495 lines
19 KiB
JavaScript
495 lines
19 KiB
JavaScript
'use strict';
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const http = require('http');
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const https = require('https');
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const http2 = require('http2');
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const net = require('net');
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const crypto = require('crypto');
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// ─── 配置 ───────────────────────────────────────────────
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const UPSTREAM_HOST = process.env.UPSTREAM_HOST || 'api.anthropic.com';
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const LISTEN_PORT = parseInt(process.env.PROXY_PORT || '3456', 10);
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const LISTEN_HOST = process.env.PROXY_HOST || '127.0.0.1';
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const UPSTREAM_PROXY = process.env.UPSTREAM_PROXY || '';
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const CONNECT_TIMEOUT = parseInt(process.env.CONNECT_TIMEOUT || '30000', 10);
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const IDLE_TIMEOUT = parseInt(process.env.IDLE_TIMEOUT || '600000', 10);
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const TELEMETRY_ENABLED = process.env.TELEMETRY_ENABLED !== 'false'; // 默认开启
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const DD_API_KEY = process.env.DD_API_KEY || 'pubbbf48e6d78dae54bceaa4acf463299bf';
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const CLI_VERSION = process.env.CLI_VERSION || '2.1.81';
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const BUILD_TIME = process.env.BUILD_TIME || '2026-03-20T21:26:18Z';
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const log = (level, msg, extra = {}) => {
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const entry = { time: new Date().toISOString(), level, msg, ...extra };
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process.stderr.write(JSON.stringify(entry) + '\n');
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};
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const HEALTH_PATH = '/__health';
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const h2Hosts = new Set();
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const h2Sessions = new Map();
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// ─── 遥测模拟 ────────────────────────────────────────────
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// 每个 device_id 的会话状态
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const sessionStates = new Map();
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function getOrCreateSession(deviceId) {
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if (sessionStates.has(deviceId)) return sessionStates.get(deviceId);
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const state = {
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sessionId: crypto.randomUUID(),
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deviceId,
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startTime: Date.now(),
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requestCount: 0,
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};
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sessionStates.set(deviceId, state);
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return state;
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}
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function generateDeviceId(accountSeed) {
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return crypto.createHash('sha256').update(`device:${accountSeed}`).digest('hex');
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}
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function buildEnvBlock() {
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return {
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platform: 'linux',
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node_version: process.version,
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terminal: 'xterm-256color',
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package_managers: 'npm',
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runtimes: 'node',
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is_running_with_bun: false,
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is_ci: false,
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is_claubbit: false,
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is_github_action: false,
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is_claude_code_action: false,
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is_claude_ai_auth: false,
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version: CLI_VERSION,
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arch: 'x64',
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is_claude_code_remote: false,
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deployment_environment: 'unknown-linux',
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is_conductor: false,
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version_base: CLI_VERSION,
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build_time: BUILD_TIME,
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is_local_agent_mode: false,
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vcs: 'git',
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platform_raw: 'linux',
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};
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}
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function buildProcessMetrics(uptime) {
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const rss = 200_000_000 + Math.floor(Math.random() * 100_000_000);
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return Buffer.from(JSON.stringify({
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uptime,
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rss,
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heapTotal: 30_000_000 + Math.floor(Math.random() * 5_000_000),
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heapUsed: 40_000_000 + Math.floor(Math.random() * 20_000_000),
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external: 14_000_000 + Math.floor(Math.random() * 2_000_000),
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arrayBuffers: Math.floor(Math.random() * 10_000),
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constrainedMemory: 0,
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cpuUsage: { user: 100_000 + Math.floor(Math.random() * 300_000), system: 20_000 + Math.floor(Math.random() * 80_000) },
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cpuPercent: Math.random() * 200,
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})).toString('base64');
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}
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function buildEvent(eventName, session, model, betas) {
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const uptime = (Date.now() - session.startTime) / 1000;
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return {
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event_type: 'ClaudeCodeInternalEvent',
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event_data: {
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event_name: eventName,
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client_timestamp: new Date().toISOString(),
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model: model || 'claude-sonnet-4-6',
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session_id: session.sessionId,
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user_type: 'external',
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betas: betas || 'claude-code-20250219,interleaved-thinking-2025-05-14',
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env: buildEnvBlock(),
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entrypoint: 'cli',
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is_interactive: true,
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client_type: 'cli',
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process: buildProcessMetrics(uptime),
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event_id: crypto.randomUUID(),
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device_id: session.deviceId,
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},
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};
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}
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// 发送遥测到 api.anthropic.com/api/event_logging/batch
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function sendTelemetryEvents(events) {
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if (!TELEMETRY_ENABLED || events.length === 0) return;
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const body = JSON.stringify({ events });
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const opts = {
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hostname: 'api.anthropic.com',
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port: 443,
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path: '/api/event_logging/batch',
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method: 'POST',
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headers: {
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'Accept': 'application/json, text/plain, */*',
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'Content-Type': 'application/json',
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'User-Agent': `claude-code/${CLI_VERSION}`,
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'x-service-name': 'claude-code',
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'Content-Length': Buffer.byteLength(body),
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},
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timeout: 10000,
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};
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const req = https.request(opts, (res) => {
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res.resume(); // drain
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log('debug', 'telemetry_sent', { status: res.statusCode, events: events.length });
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});
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req.on('error', (err) => {
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log('debug', 'telemetry_error', { error: err.message });
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});
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req.on('timeout', () => req.destroy());
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req.end(body);
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}
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// 发送 DataDog 日志
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function sendDatadogLog(eventName, session, model) {
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if (!TELEMETRY_ENABLED) return;
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const uptime = (Date.now() - session.startTime) / 1000;
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const entry = {
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ddsource: 'nodejs',
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ddtags: `event:${eventName},arch:x64,client_type:cli,model:${model || 'claude-sonnet-4-6'},platform:linux,user_type:external,version:${CLI_VERSION},version_base:${CLI_VERSION}`,
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message: eventName,
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service: 'claude-code',
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hostname: 'claude-code',
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env: 'external',
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model: model || 'claude-sonnet-4-6',
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session_id: session.sessionId,
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user_type: 'external',
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entrypoint: 'cli',
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is_interactive: 'true',
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client_type: 'cli',
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process_metrics: {
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uptime,
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rss: 200_000_000 + Math.floor(Math.random() * 100_000_000),
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heapTotal: 30_000_000 + Math.floor(Math.random() * 5_000_000),
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heapUsed: 40_000_000 + Math.floor(Math.random() * 20_000_000),
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external: 14_000_000 + Math.floor(Math.random() * 2_000_000),
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arrayBuffers: Math.floor(Math.random() * 10_000),
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constrainedMemory: 0,
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cpuUsage: { user: 100_000 + Math.floor(Math.random() * 300_000), system: 20_000 + Math.floor(Math.random() * 80_000) },
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},
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platform: 'linux',
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platform_raw: 'linux',
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arch: 'x64',
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node_version: process.version,
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version: CLI_VERSION,
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version_base: CLI_VERSION,
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build_time: BUILD_TIME,
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deployment_environment: 'unknown-linux',
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vcs: 'git',
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};
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const body = JSON.stringify([entry]);
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const opts = {
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hostname: 'http-intake.logs.us5.datadoghq.com',
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port: 443,
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path: '/api/v2/logs',
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method: 'POST',
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headers: {
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'Accept': 'application/json, text/plain, */*',
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'Content-Type': 'application/json',
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'User-Agent': 'axios/1.13.6',
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'dd-api-key': DD_API_KEY,
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'Content-Length': Buffer.byteLength(body),
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},
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timeout: 10000,
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};
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const req = https.request(opts, (res) => { res.resume(); });
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req.on('error', () => {});
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req.on('timeout', () => req.destroy());
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req.end(body);
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}
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// 请求前发遥测（模拟 CLI 启动 + 初始化事件）
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function emitPreRequestTelemetry(reqHeaders) {
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const accountSeed = reqHeaders['x-forwarded-host'] || 'default';
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const deviceId = generateDeviceId(accountSeed + ':' + (reqHeaders['authorization'] || '').slice(-16));
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const session = getOrCreateSession(deviceId);
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session.requestCount++;
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const model = 'claude-sonnet-4-6';
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const betas = reqHeaders['anthropic-beta'] || 'claude-code-20250219,interleaved-thinking-2025-05-14';
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// 首次请求：发 tengu_started + tengu_init
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if (session.requestCount === 1) {
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const events = [
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buildEvent('tengu_started', session, model, betas),
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buildEvent('tengu_init', session, model, betas),
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buildEvent('tengu_mcp_server_connection_succeeded', session, model, betas),
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];
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sendTelemetryEvents(events);
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sendDatadogLog('tengu_started', session, model);
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sendDatadogLog('tengu_init', session, model);
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}
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// 每次请求：发 request 相关事件
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const events = [
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buildEvent('tengu_api_request_started', session, model, betas),
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];
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sendTelemetryEvents(events);
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}
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// 请求后发遥测
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function emitPostRequestTelemetry(reqHeaders, statusCode) {
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const accountSeed = reqHeaders['x-forwarded-host'] || 'default';
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const deviceId = generateDeviceId(accountSeed + ':' + (reqHeaders['authorization'] || '').slice(-16));
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const session = getOrCreateSession(deviceId);
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const model = 'claude-sonnet-4-6';
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const betas = reqHeaders['anthropic-beta'] || 'claude-code-20250219,interleaved-thinking-2025-05-14';
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const events = [
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buildEvent('tengu_api_request_completed', session, model, betas),
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];
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sendTelemetryEvents(events);
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sendDatadogLog('tengu_api_request_completed', session, model);
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}
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// ─── H2 session 管理 ────────────────────────────────────
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function getOrCreateH2Session(host) {
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const existing = h2Sessions.get(host);
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if (existing && !existing.closed && !existing.destroyed) return existing;
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if (existing) { try { existing.close(); } catch (_) {} }
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const session = http2.connect(`https://${host}`);
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session.on('error', (err) => {
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log('warn', 'h2_session_error', { host, error: err.message });
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h2Sessions.delete(host);
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try { session.close(); } catch (_) {}
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});
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session.on('close', () => h2Sessions.delete(host));
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session.on('goaway', () => { h2Sessions.delete(host); try { session.close(); } catch (_) {} });
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session.setTimeout(IDLE_TIMEOUT, () => { session.close(); h2Sessions.delete(host); });
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h2Sessions.set(host, session);
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return session;
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}
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function waitForConnect(session) {
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if (session.connected) return Promise.resolve();
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return new Promise((resolve, reject) => {
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session.once('connect', resolve);
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session.once('error', reject);
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const t = setTimeout(() => reject(new Error('h2 connect timeout')), CONNECT_TIMEOUT);
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session.once('connect', () => clearTimeout(t));
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});
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}
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// ─── CONNECT 隧道 ────────────────────────────────────────
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function connectViaProxy(proxyUrl, targetHost, targetPort) {
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return new Promise((resolve, reject) => {
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const proxy = new URL(proxyUrl);
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const conn = net.connect(parseInt(proxy.port || '80', 10), proxy.hostname, () => {
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const auth = proxy.username
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? `Proxy-Authorization: Basic ${Buffer.from(`${decodeURIComponent(proxy.username)}:${decodeURIComponent(proxy.password || '')}`).toString('base64')}\r\n`
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: '';
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conn.write(`CONNECT ${targetHost}:${targetPort} HTTP/1.1\r\nHost: ${targetHost}:${targetPort}\r\n${auth}\r\n`);
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});
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conn.once('error', reject);
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conn.setTimeout(CONNECT_TIMEOUT, () => conn.destroy(new Error('CONNECT timeout')));
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let buf = '';
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conn.on('data', function onData(chunk) {
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buf += chunk.toString();
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const idx = buf.indexOf('\r\n\r\n');
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if (idx === -1) return;
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conn.removeListener('data', onData);
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const code = parseInt(buf.split(' ')[1], 10);
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if (code === 200) { conn.setTimeout(0); resolve(conn); }
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else { conn.destroy(); reject(new Error(`CONNECT ${code}`)); }
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});
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});
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}
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// ─── 收集请求体 ──────────────────────────────────────────
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function collectBody(req) {
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return new Promise((resolve) => {
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const chunks = [];
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req.on('data', (c) => chunks.push(c));
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req.on('end', () => resolve(Buffer.concat(chunks)));
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req.on('error', () => resolve(Buffer.concat(chunks)));
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});
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}
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// ─── H1 代理 ─────────────────────────────────────────────
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function sendViaH1(targetHost, method, path, reqHeaders, body, res, savedHeaders) {
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return new Promise((resolve) => {
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const headers = { ...reqHeaders, host: targetHost };
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['x-forwarded-host', 'connection', 'keep-alive', 'proxy-connection', 'transfer-encoding'].forEach(h => delete headers[h]);
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if (body.length > 0) headers['content-length'] = String(body.length);
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const opts = { hostname: targetHost, port: 443, path, method, headers, servername: targetHost, timeout: CONNECT_TIMEOUT };
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const startTime = Date.now();
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const finish = (requestOpts) => {
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const proxyReq = https.request(requestOpts);
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proxyReq.on('response', (proxyRes) => {
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log('info', 'proxy_response', { host: targetHost, status: proxyRes.statusCode, path, proto: 'h1' });
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const rh = { ...proxyRes.headers };
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delete rh['connection']; delete rh['keep-alive'];
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res.writeHead(proxyRes.statusCode, rh);
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proxyRes.pipe(res, { end: true });
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// 请求完成后发遥测
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if (path.includes('/v1/messages') && savedHeaders) {
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emitPostRequestTelemetry(savedHeaders, proxyRes.statusCode);
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}
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resolve('ok');
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});
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proxyReq.on('error', (err) => {
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if (err.message === 'socket hang up' && (Date.now() - startTime) < 2000) {
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log('info', 'h1_rejected_switching_to_h2', { host: targetHost });
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h2Hosts.add(targetHost);
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sendViaH2(targetHost, method, path, reqHeaders, body, res, savedHeaders).then(() => resolve('h2'));
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return;
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}
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log('error', 'h1_error', { error: err.message, host: targetHost, path });
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if (!res.headersSent) { res.writeHead(502); res.end(JSON.stringify({ error: err.message })); }
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resolve('error');
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});
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proxyReq.on('timeout', () => proxyReq.destroy(new Error('timeout')));
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proxyReq.end(body);
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};
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if (UPSTREAM_PROXY) {
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connectViaProxy(UPSTREAM_PROXY, targetHost, 443)
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.then((socket) => { opts.socket = socket; opts.agent = false; finish(opts); })
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.catch((err) => { log('error', 'tunnel_failed', { error: err.message }); if (!res.headersSent) { res.writeHead(502); res.end('tunnel error'); } resolve('error'); });
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} else {
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finish(opts);
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}
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});
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}
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// ─── H2 代理 ─────────────────────────────────────────────
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async function sendViaH2(targetHost, method, path, reqHeaders, body, res, savedHeaders) {
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try {
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const session = getOrCreateH2Session(targetHost);
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await waitForConnect(session);
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const headers = {};
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const skip = new Set(['host','connection','keep-alive','proxy-connection','transfer-encoding','upgrade','x-forwarded-host','http2-settings']);
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for (const [k, v] of Object.entries(reqHeaders)) {
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if (!skip.has(k.toLowerCase())) headers[k] = v;
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}
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headers[':method'] = method;
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headers[':path'] = path;
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headers[':authority'] = targetHost;
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headers[':scheme'] = 'https';
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if (body.length > 0) headers['content-length'] = String(body.length);
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const stream = session.request(headers);
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let responded = false;
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stream.on('response', (h2h) => {
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responded = true;
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const status = h2h[':status'] || 502;
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const rh = {};
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for (const [k, v] of Object.entries(h2h)) { if (!k.startsWith(':')) rh[k] = v; }
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log('info', 'proxy_response', { host: targetHost, status, path, proto: 'h2' });
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res.writeHead(status, rh);
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stream.on('data', (c) => res.write(c));
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stream.on('end', () => res.end());
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if (path.includes('/v1/messages') && savedHeaders) {
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emitPostRequestTelemetry(savedHeaders, status);
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}
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});
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stream.on('error', (err) => {
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if (err.message && err.message.includes('NGHTTP2')) {
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h2Sessions.delete(targetHost);
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try { session.close(); } catch (_) {}
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}
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if (responded) { if (!res.writableEnded) res.end(); return; }
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log('error', 'h2_error', { error: err.message, host: targetHost, path });
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if (!res.headersSent) { res.writeHead(502); res.end(JSON.stringify({ error: err.message })); }
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});
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stream.on('close', () => {
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if (!responded && !res.headersSent) {
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log('warn', 'h2_no_response', { host: targetHost, path });
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res.writeHead(502); res.end('{"error":"h2_no_response"}');
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} else if (!res.writableEnded) { res.end(); }
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});
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stream.setTimeout(CONNECT_TIMEOUT, () => stream.close());
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stream.end(body);
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} catch (err) {
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log('error', 'h2_exception', { error: err.message, host: targetHost });
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h2Sessions.delete(targetHost);
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if (!res.headersSent) { res.writeHead(502); res.end(JSON.stringify({ error: err.message })); }
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}
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}
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// ─── 请求入口 ─────────────────────────────────────────────
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async function proxyRequest(req, res) {
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const targetHost = req.headers['x-forwarded-host'] || UPSTREAM_HOST;
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log('info', 'proxy_request', { host: targetHost, method: req.method, path: req.url });
|
||
|
||
// 保存原始 headers 用于遥测
|
||
const savedHeaders = { ...req.headers };
|
||
|
||
const body = await collectBody(req);
|
||
|
||
// 请求前发遥测（仅 /v1/messages 请求）
|
||
if (req.url.includes('/v1/messages') && TELEMETRY_ENABLED) {
|
||
emitPreRequestTelemetry(savedHeaders);
|
||
// 随机延迟 50-200ms 模拟真实 CLI 行为
|
||
await new Promise(r => setTimeout(r, 50 + Math.floor(Math.random() * 150)));
|
||
}
|
||
|
||
if (h2Hosts.has(targetHost)) {
|
||
await sendViaH2(targetHost, req.method, req.url, req.headers, body, res, savedHeaders);
|
||
} else {
|
||
await sendViaH1(targetHost, req.method, req.url, req.headers, body, res, savedHeaders);
|
||
}
|
||
}
|
||
|
||
// ─── HTTP 服务器 ─────────────────────────────────────────
|
||
const server = http.createServer((req, res) => {
|
||
if (req.url === HEALTH_PATH) {
|
||
res.writeHead(200, { 'content-type': 'application/json' });
|
||
res.end(JSON.stringify({
|
||
status: 'ok', node: process.version, openssl: process.versions.openssl,
|
||
uptime: process.uptime(), h2Hosts: [...h2Hosts],
|
||
telemetry: TELEMETRY_ENABLED, sessions: sessionStates.size,
|
||
}));
|
||
return;
|
||
}
|
||
proxyRequest(req, res).catch((err) => {
|
||
log('error', 'unhandled', { error: err.message });
|
||
if (!res.headersSent) { res.writeHead(500); res.end('internal error'); }
|
||
});
|
||
});
|
||
|
||
server.timeout = 0;
|
||
server.keepAliveTimeout = IDLE_TIMEOUT;
|
||
server.headersTimeout = 60000;
|
||
server.listen(LISTEN_PORT, LISTEN_HOST, () => {
|
||
log('info', 'node-tls-proxy started', {
|
||
listen: `${LISTEN_HOST}:${LISTEN_PORT}`, node: process.version, openssl: process.versions.openssl,
|
||
telemetry: TELEMETRY_ENABLED,
|
||
});
|
||
});
|
||
|
||
// 定期清理过期 session（1 小时无活动）
|
||
setInterval(() => {
|
||
const now = Date.now();
|
||
for (const [id, state] of sessionStates) {
|
||
if (now - state.startTime > 3600_000) sessionStates.delete(id);
|
||
}
|
||
}, 300_000);
|
||
|
||
let stopping = false;
|
||
function shutdown(sig) {
|
||
if (stopping) return; stopping = true;
|
||
for (const s of h2Sessions.values()) try { s.close(); } catch (_) {}
|
||
h2Sessions.clear();
|
||
server.close(() => process.exit(0));
|
||
setTimeout(() => process.exit(1), 5000);
|
||
}
|
||
process.on('SIGTERM', () => shutdown('SIGTERM'));
|
||
process.on('SIGINT', () => shutdown('SIGINT'));
|
||
process.on('uncaughtException', (e) => log('error', 'uncaught', { error: e.message }));
|
||
process.on('unhandledRejection', (r) => log('error', 'rejection', { error: String(r) }));
|