312 lines
11 KiB
JavaScript
312 lines
11 KiB
JavaScript
'use strict';
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const http = require('http');
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const log = require('./logger');
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// scanWifi 不再在此调用（AP 模式下无法扫描），改用缓存
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const { CAPTIVE_DOMAIN } = require('./dns-hijack');
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const PORT = 80;
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const CAPTIVE_DETECT_PATHS = new Set([
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'/hotspot-detect.html', // iOS
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'/library/test/success.html', // iOS older
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'/generate_204', // Android
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'/gen_204', // Android alt
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'/connecttest.txt', // Windows
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'/ncsi.txt', // Windows alt
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'/redirect', // Windows 11
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'/canonical.html', // Firefox
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]);
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/**
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* 配网 HTTP 服务器（回调模式）。
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*
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* 路由：
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* GET / → 配网页面（HTML）
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* GET /api/scan → WiFi 扫描结果 JSON
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* POST /api/connect → 提交 WiFi 凭证，触发 onConnect 回调
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* GET /api/status → 当前连接状态
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* Captive Portal 检测 → 302 重定向到配网页
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*/
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class CaptiveServer {
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constructor(opts = {}) {
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this._server = null;
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this._clawId = opts.clawId || '???';
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this._onConnect = opts.onConnect || null;
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this._cachedWifiList = opts.cachedWifiList || [];
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}
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startListening() {
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this._server = http.createServer((req, res) => {
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this._handle(req, res).catch(e => {
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log.error('http', `${req.method} ${req.url} 异常:`, e.message);
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res.writeHead(500, { 'Content-Type': 'application/json' });
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res.end(JSON.stringify({ error: '内部错误' }));
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});
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});
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this._server.listen(PORT, '0.0.0.0', () => {
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log.info('http', `配网页面就绪: http://${CAPTIVE_DOMAIN} (端口 ${PORT})`);
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});
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this._server.on('error', (e) => {
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if (e.code === 'EACCES') {
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log.error('http', `端口 ${PORT} 无权限，请以 root 运行`);
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} else if (e.code === 'EADDRINUSE') {
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log.error('http', `端口 ${PORT} 已被占用`);
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} else {
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log.error('http', '服务器错误:', e.message);
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}
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});
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}
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stop() {
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if (this._server) {
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this._server.close();
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this._server = null;
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}
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}
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async _handle(req, res) {
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const url = new URL(req.url, `http://${req.headers.host || 'localhost'}`);
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const pathname = url.pathname;
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if (CAPTIVE_DETECT_PATHS.has(pathname)) {
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res.writeHead(302, { Location: `http://${CAPTIVE_DOMAIN}/` });
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res.end();
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return;
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}
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if (pathname === '/api/scan' && req.method === 'GET') {
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return this._apiScan(req, res);
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}
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if (pathname === '/api/connect' && req.method === 'POST') {
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return this._apiConnect(req, res);
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}
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if (pathname === '/api/status' && req.method === 'GET') {
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return this._apiStatus(req, res);
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}
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res.writeHead(200, {
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'Content-Type': 'text/html; charset=utf-8',
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'Cache-Control': 'no-cache',
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});
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res.end(this._renderPage());
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}
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// ── API ──────────────────────────────────────────────────────────────────
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_apiScan(req, res) {
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// AP 模式下 wlan0 无法扫描，返回开 AP 前的缓存结果
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this._json(res, { wifi: this._cachedWifiList, cached: true });
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}
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async _apiConnect(req, res) {
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const body = await readBody(req);
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let data;
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try { data = JSON.parse(body); } catch (_) {
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this._json(res, { success: false, error: 'JSON 格式错误' }, 400);
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return;
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}
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const { ssid, password } = data;
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if (!ssid) {
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this._json(res, { success: false, error: '请选择 WiFi' }, 400);
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return;
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}
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log.info('http', `用户提交配网: ssid=${ssid}`);
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// 先返回响应，让手机端知道设备收到了请求
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// （AP 即将关闭，手机会断开连接）
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this._json(res, { success: true, message: '正在连接，AP 将临时关闭...' });
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// 延迟执行，确保 HTTP 响应送达
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if (this._onConnect) {
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setTimeout(() => {
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this._onConnect(ssid, password || '');
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}, 1000);
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}
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}
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_apiStatus(req, res) {
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const { hasInternet } = require('./network');
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this._json(res, { connected: hasInternet() });
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}
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_json(res, data, code = 200) {
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res.writeHead(code, {
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'Content-Type': 'application/json',
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'Access-Control-Allow-Origin': '*',
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});
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res.end(JSON.stringify(data));
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}
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// ── 配网页面 HTML ───────────────────────────────────────────────────────
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_renderPage() {
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return `<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1">
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<title>Claw Box 配网</title>
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<style>
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*{margin:0;padding:0;box-sizing:border-box}
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body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:#f0f2f5;color:#333;min-height:100vh;display:flex;justify-content:center;align-items:center;padding:20px}
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.card{background:#fff;border-radius:16px;box-shadow:0 4px 24px rgba(0,0,0,.1);padding:32px;width:100%;max-width:380px}
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.logo{text-align:center;margin-bottom:24px}
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.logo span{font-size:40px}
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.logo h1{font-size:20px;margin-top:8px;color:#1a1a2e}
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.logo p{font-size:13px;color:#888;margin-top:4px}
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.device-id{text-align:center;background:#f8f9fa;border-radius:8px;padding:8px;margin-bottom:20px;font-size:14px;color:#555}
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.device-id strong{color:#1a1a2e;font-size:16px}
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label{display:block;font-size:14px;font-weight:500;margin-bottom:6px;color:#555}
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input{width:100%;padding:12px;border:1.5px solid #ddd;border-radius:8px;font-size:15px;outline:none;transition:border-color .2s}
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input:focus{border-color:#4a6cf7}
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.field{margin-bottom:16px}
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.wifi-list{max-height:220px;overflow-y:auto;border:1.5px solid #ddd;border-radius:8px;margin-bottom:16px}
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.wifi-item{display:flex;align-items:center;padding:10px 12px;border-bottom:1px solid #f0f0f0;cursor:pointer;font-size:13px;transition:background .15s}
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.wifi-item:last-child{border-bottom:none}
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.wifi-item:hover,.wifi-item.active{background:#e8f0fe}
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.wifi-item.active{font-weight:600;color:#1a1a2e}
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.wifi-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
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.wifi-signal{display:flex;align-items:flex-end;gap:1.5px;height:14px;margin-left:8px;flex-shrink:0}
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.wifi-signal i{display:block;width:3px;background:#ccc;border-radius:1px}
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.wifi-signal i.on{background:#4a6cf7}
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.wifi-lock{margin-left:6px;font-size:11px;color:#888;flex-shrink:0}
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.btn{width:100%;padding:14px;background:linear-gradient(135deg,#4a6cf7,#3b5de7);color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:opacity .2s}
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.btn:hover{opacity:.9}
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.btn:disabled{opacity:.5;cursor:not-allowed}
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.btn-scan{background:#f0f2f5;color:#555;font-size:13px;padding:8px;margin-bottom:16px;font-weight:400}
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.btn-scan:hover{background:#e8eaed}
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.status{text-align:center;margin-top:16px;padding:12px;border-radius:8px;font-size:14px;display:none}
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.status.ok{display:block;background:#e8f5e9;color:#2e7d32}
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.status.err{display:block;background:#ffeaea;color:#c62828}
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.status.info{display:block;background:#e3f2fd;color:#1565c0}
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.manual{margin-top:8px}
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.manual input{display:none}
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.manual label{font-size:13px;color:#4a6cf7;cursor:pointer;text-align:center;display:block}
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</style>
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</head>
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<body>
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<div class="card">
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<div class="logo">
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<span>🦀</span>
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<h1>Claw Box 配网</h1>
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<p>将设备连接到您的 WiFi</p>
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</div>
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<div class="device-id">设备 ID: <strong>${this._clawId}</strong></div>
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<div class="field">
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<label>请选择下列 WiFi 网络</label>
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<div class="wifi-list" id="wifiList"><div style="padding:12px;text-align:center;color:#999;font-size:13px">加载中...</div></div>
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</div>
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<div class="manual">
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<input type="checkbox" id="manualToggle" onchange="toggleManual()">
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<label for="manualToggle">手动输入 SSID</label>
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<input type="text" id="manualSsid" placeholder="输入 WiFi 名称" style="display:none;margin-top:8px">
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</div>
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<input type="hidden" id="selectedSsid" value="">
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<div class="field" style="margin-top:16px">
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<label for="password">密码</label>
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<input type="password" id="password" placeholder="WiFi 密码（开放网络留空）">
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</div>
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<button class="btn" id="connectBtn" onclick="doConnect()">连接</button>
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<div class="status" id="status"></div>
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</div>
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<script>
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function $(id){return document.getElementById(id)}
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function setStatus(msg,type){var s=$('status');s.textContent=msg;s.className='status '+type}
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function signalBars(pct){
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var bars=[4,7,10,14];
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var on=pct>=80?4:pct>=60?3:pct>=40?2:1;
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return bars.map(function(h,i){
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return '<i style="height:'+h+'px" class="'+(i<on?'on':'')+'"></i>';
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}).join('');
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}
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function selectWifi(ssid){
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$('selectedSsid').value=ssid;
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var items=document.querySelectorAll('.wifi-item');
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items.forEach(function(el){el.classList.toggle('active',el.dataset.ssid===ssid)});
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}
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async function doScan(){
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var list=$('wifiList');
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list.innerHTML='<div style="padding:12px;text-align:center;color:#999;font-size:13px">加载中...</div>';
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try{
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var r=await fetch('/api/scan');
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var d=await r.json();
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var arr=d.wifi||[];
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if(arr.length===0){
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list.innerHTML='<div style="padding:12px;text-align:center;color:#999;font-size:13px">未发现网络，请手动输入</div>';
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return;
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}
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list.innerHTML='';
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arr.forEach(function(w){
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var div=document.createElement('div');
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div.className='wifi-item';
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div.dataset.ssid=w.ssid;
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div.onclick=function(){selectWifi(w.ssid)};
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var lock=w.security&&w.security!=='Open'?'🔒':'';
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div.innerHTML='<span class="wifi-name">'+w.ssid+'</span>'
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+'<span class="wifi-signal">'+signalBars(w.signal)+'</span>'
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+'<span class="wifi-lock">'+lock+'</span>';
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list.appendChild(div);
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});
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}catch(e){
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list.innerHTML='<div style="padding:12px;text-align:center;color:#c62828;font-size:13px">加载失败</div>';
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}
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}
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function toggleManual(){
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var on=$('manualToggle').checked;
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$('manualSsid').style.display=on?'block':'none';
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$('wifiList').style.display=on?'none':'block';
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}
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async function doConnect(){
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var ssid=$('manualToggle').checked?$('manualSsid').value:$('selectedSsid').value;
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var pw=$('password').value;
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if(!ssid){setStatus('请选择或输入 WiFi','err');return}
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$('connectBtn').disabled=true;
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setStatus('正在连接 '+ssid+' ... 热点将临时关闭','info');
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try{
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var r=await fetch('/api/connect',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({ssid:ssid,password:pw})});
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var d=await r.json();
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if(d.success){
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setStatus('✓ 设备正在连接 WiFi，热点将关闭。如连接失败，热点会自动恢复。','ok');
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}else{
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setStatus('失败: '+(d.error||'未知错误'),'err');
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$('connectBtn').disabled=false;
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}
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}catch(e){
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setStatus('请求失败: '+e.message,'err');
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$('connectBtn').disabled=false;
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}
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}
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doScan();
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</script>
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</body>
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</html>`;
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}
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}
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function readBody(req) {
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return new Promise((resolve, reject) => {
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let data = '';
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req.on('data', c => { data += c; if (data.length > 4096) req.destroy(); });
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req.on('end', () => resolve(data));
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req.on('error', reject);
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});
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}
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module.exports = { CaptiveServer };
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