341 lines
12 KiB
JavaScript
341 lines
12 KiB
JavaScript
'use strict';
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const WebSocket = require('ws');
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const { execFileSync } = require('child_process');
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const config = require('./config');
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const log = require('./logger');
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const { getBoxId } = require('./fingerprint');
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const { collect } = require('./metrics');
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const { getDashboardInfo, startTtyd, FrpcManager } = require('./frpc'); // getDashboardInfo 也用于心跳中定期刷新
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const { ProvisionManager } = require('./provisioning');
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const { hasInternet } = require('./network');
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const led = require('./led');
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const MAX_BACKOFF_MS = 60_000;
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const PONG_TIMEOUT_MS = 15_000;
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const PING_INTERVAL_MS = 30_000;
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// systemd watchdog: 如果 WatchdogSec 存在，定期发 WATCHDOG=1
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const SD_WATCHDOG_USEC = parseInt(process.env.WATCHDOG_USEC || '0', 10);
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const SD_NOTIFY_INTERVAL = SD_WATCHDOG_USEC > 0
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? Math.floor(SD_WATCHDOG_USEC / 2 / 1000) // 半周期通知（μs → ms）
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: 0;
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class ClawClient {
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constructor() {
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this._cfg = config.load();
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this._boxId = getBoxId();
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this._ws = null;
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this._hbTimer = null;
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this._backoff = 1_000;
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this._stopped = false;
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this._frpc = new FrpcManager();
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this._dashInfo = {};
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this._hbCount = 0; // 心跳计数器，用于定期刷新 dashboard 信息
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// WS 层活性检测
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this._pingTimer = null;
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this._awaitingPong = false;
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// systemd watchdog
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this._sdTimer = null;
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this._setupGlobalHandlers();
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}
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// ── 全局异常兜底 ─────────────────────────────────────────────────────────────
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_setupGlobalHandlers() {
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process.on('uncaughtException', (err) => {
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log.error('process', '未捕获异常:', err);
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// 给日志写盘的时间，然后退出让 systemd 重启
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setTimeout(() => process.exit(1), 1000);
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});
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process.on('unhandledRejection', (reason) => {
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log.error('process', '未处理的 Promise 拒绝:', reason);
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});
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}
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// ── 生命周期 ─────────────────────────────────────────────────────────────────
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async start() {
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log.info('clawd', `启动中... 服务器 = ${this._cfg.server}`);
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// 启动时默认 SETUP 亮（未激活状态），连接成功后按实际状态切换
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led.status.setSetup();
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this._startSdNotify();
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// 启动 AP 配网管理器（等待已保存 WiFi 自动连接，超时再开 AP）
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this._provisionMgr = new ProvisionManager(this._cfg.claw_id);
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this._connectionStarted = false;
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// 网络就绪时连接云端（仅触发一次）
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this._provisionMgr.on('network-ready', () => {
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if (!this._connectionStarted) {
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this._connectionStarted = true;
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this._proceedWithConnection().catch(e => {
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log.error('clawd', '连接启动失败:', e.message);
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});
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}
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});
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await this._provisionMgr.start();
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// start() 返回后，如果已有网络且尚未启动连接
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if (hasInternet() && !this._connectionStarted) {
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this._connectionStarted = true;
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await this._proceedWithConnection();
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} else if (!hasInternet()) {
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log.info('clawd', '等待网络就绪（WiFi 配网或网线接入）...');
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}
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}
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async _proceedWithConnection() {
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const [dashInfo] = await Promise.all([
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getDashboardInfo().catch(e => { log.warn('clawd', 'dashboard 信息获取失败:', e.message); return null; }),
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startTtyd().catch(e => log.warn('ttyd', '启动失败:', e.message)),
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]);
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this._dashInfo = dashInfo || {};
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this._connect();
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}
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stop() {
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this._stopped = true;
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this._clearHeartbeat();
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this._clearPing();
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if (this._sdTimer) { clearInterval(this._sdTimer); this._sdTimer = null; }
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if (this._provisionMgr) { this._provisionMgr.stop(); this._provisionMgr = null; }
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this._frpc.stop();
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if (this._ws) this._ws.terminate();
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led.status.off(); // 进程退出，两灯全灭
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this._sdNotify('STOPPING=1');
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log.info('clawd', '已停止');
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log.close();
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}
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// ── WebSocket 连接 ──────────────────────────────────────────────────────────
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_connect() {
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if (this._stopped) return;
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log.info('clawd', `正在连接 ${this._cfg.server} ...`);
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const ws = new WebSocket(this._cfg.server, {
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handshakeTimeout: 10_000,
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});
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this._ws = ws;
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ws.on('open', () => {
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log.info('clawd', 'WebSocket 已连接');
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this._backoff = 1_000;
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this._sendConnect();
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this._startPing();
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led.display.showTime(); // 连上云端 → 显示时间
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});
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ws.on('message', (data) => {
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try {
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this._handleMessage(JSON.parse(data.toString()));
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} catch (e) {
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log.error('clawd', '消息解析失败:', e.message);
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}
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});
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ws.on('pong', () => {
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this._awaitingPong = false;
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});
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ws.on('close', (code, reason) => {
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this._clearHeartbeat();
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this._clearPing();
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if (!this._stopped) {
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log.warn('clawd', `连接断开 (${code})，${this._backoff / 1000}s 后重连...`);
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led.display.showAP(); // 断开云端 → 显示 AP
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setTimeout(() => this._connect(), this._backoff);
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this._backoff = Math.min(this._backoff * 2, MAX_BACKOFF_MS);
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}
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});
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ws.on('error', (err) => {
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log.error('clawd', '连接错误:', err.message);
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});
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}
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// ── WS 层 Ping/Pong 活性检测 ──────────────────────────────────────────────
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_startPing() {
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this._clearPing();
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this._pingTimer = setInterval(() => {
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if (!this._ws || this._ws.readyState !== WebSocket.OPEN) return;
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if (this._awaitingPong) {
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log.warn('clawd', 'Pong 超时，连接可能已死，主动关闭重连');
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this._ws.terminate();
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return;
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}
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this._awaitingPong = true;
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try { this._ws.ping(); } catch (_) {}
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}, PING_INTERVAL_MS);
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}
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_clearPing() {
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if (this._pingTimer) {
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clearInterval(this._pingTimer);
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this._pingTimer = null;
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}
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this._awaitingPong = false;
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}
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// ── 发送 connect ─────────────────────────────────────────────────────────────
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_sendConnect() {
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const msg = {
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type: 'connect',
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box_id: this._boxId,
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claw_id: this._cfg.claw_id ?? null,
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token: this._cfg.token ?? null,
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...this._dashInfo,
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};
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this._send(msg);
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}
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// ── 消息处理 ─────────────────────────────────────────────────────────────────
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_handleMessage(msg) {
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switch (msg.type) {
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case 'connected':
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this._onConnected(msg);
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break;
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case 'heartbeat_ack':
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break;
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case 'error':
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log.error('clawd', `服务器错误: ${msg.msg}`);
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if (msg.msg === 'hardware_mismatch') {
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log.warn('clawd', '硬件指纹不符，清除凭证重新注册...');
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this._cfg.claw_id = null;
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this._cfg.token = null;
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config.save(this._cfg);
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} else if (msg.msg && msg.msg.includes('invalid')) {
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log.warn('clawd', '凭证无效，清除凭证重新注册...');
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this._cfg.claw_id = null;
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this._cfg.token = null;
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config.save(this._cfg);
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}
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break;
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default:
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log.warn('clawd', '未知消息类型:', msg.type);
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}
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}
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_onConnected(msg) {
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const isNew = !this._cfg.claw_id;
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this._cfg.claw_id = msg.claw_id;
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this._cfg.token = msg.token;
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config.save(this._cfg);
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if (isNew) {
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log.info('clawd', `注册成功！claw_id = ${msg.claw_id}`);
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}
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if (msg.status === 'inactive') {
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led.status.setSetup(); // 未激活 → SETUP 亮
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const id = String(msg.claw_id).padEnd(6);
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const pin = String(msg.pin);
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log.info('clawd', '');
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log.info('clawd', '╔════════════════════════════════════╗');
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log.info('clawd', `║ Claw ID : ${id} ║`);
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log.info('clawd', `║ PIN 码 : ${pin} ║`);
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log.info('clawd', '║ 请在网页前台「添加设备」中输入 ║');
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log.info('clawd', '╚════════════════════════════════════╝');
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log.info('clawd', '');
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log.info('clawd', '等待激活，心跳正常运行...');
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} else {
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led.status.setApps(); // 已激活 → APPS 亮
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log.info('clawd', `已激活 claw_id = ${msg.claw_id}`);
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}
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if (msg.frp && msg.frp.server && msg.frp.auth_token) {
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this._frpc.start(msg.claw_id, msg.frp).catch(e => {
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log.error('frpc', '启动失败:', e.message);
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});
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}
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this._startHeartbeat();
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}
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// ── 心跳 ────────────────────────────────────────────────────────────────────
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_startHeartbeat() {
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this._clearHeartbeat();
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const interval = (this._cfg.heartbeat_interval || 30) * 1000;
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this._sendHeartbeat();
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this._hbTimer = setInterval(() => this._sendHeartbeat(), interval);
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}
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async _sendHeartbeat() {
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if (!this._ws || this._ws.readyState !== WebSocket.OPEN) return;
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try {
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this._hbCount++;
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// 每 10 次心跳（约 5 分钟）刷新一次 dashboard 信息，
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// 确保初次提取失败时能自动补偿，或在 token 变化后自动同步
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if (this._hbCount % 10 === 0) {
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const freshInfo = await getDashboardInfo().catch(() => null);
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if (freshInfo && Object.keys(freshInfo).length > 0) {
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this._dashInfo = freshInfo;
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}
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}
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const metrics = await collect();
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this._send({
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type: 'heartbeat',
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claw_id: this._cfg.claw_id,
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token: this._cfg.token,
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metrics,
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...this._dashInfo, // 携带 dashboard_token / dashboard_port，供 VPS 幂等更新
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});
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} catch (e) {
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log.error('clawd', '心跳发送失败:', e.message);
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}
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}
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_clearHeartbeat() {
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if (this._hbTimer) {
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clearInterval(this._hbTimer);
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this._hbTimer = null;
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}
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}
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// ── 工具 ────────────────────────────────────────────────────────────────────
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_send(obj) {
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if (this._ws && this._ws.readyState === WebSocket.OPEN) {
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this._ws.send(JSON.stringify(obj));
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}
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}
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// ── systemd Watchdog ────────────────────────────────────────────────────────
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_startSdNotify() {
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if (!SD_NOTIFY_INTERVAL) return;
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log.debug('clawd', `systemd watchdog 启用，通知间隔 ${SD_NOTIFY_INTERVAL}ms`);
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this._sdNotify('READY=1');
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this._sdTimer = setInterval(() => this._sdNotify('WATCHDOG=1'), SD_NOTIFY_INTERVAL);
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}
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_sdNotify(msg) {
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if (!process.env.NOTIFY_SOCKET) return;
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try {
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execFileSync('systemd-notify', ['--pid=' + process.pid, msg], { timeout: 2000 });
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} catch (_) {
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// systemd-notify 不可用时静默忽略
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}
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}
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}
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module.exports = { ClawClient };
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