408 lines
12 KiB
JavaScript
408 lines
12 KiB
JavaScript
'use strict';
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const { execSync, spawnSync } = require('child_process');
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const fs = require('fs');
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const os = require('os');
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const log = require('./logger');
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const AP_SSID_PREFIX = 'ClawBox-';
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const AP_IP = '10.42.0.1';
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const AP_PASSWORD = '12345678';
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const AP_IFACE = process.env.CLAWD_WIFI_IFACE || '';
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const CON_NAME = 'clawd-hotspot';
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/** 产品 RJ45 在 sysfs 中的默认名；等价于检测 `cat /sys/class/net/end0/carrier` */
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const DEFAULT_ETH_IFACE = 'end0';
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function _ethIfaceEnvOrDefault() {
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return process.env.CLAWD_ETH_IFACE || DEFAULT_ETH_IFACE;
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}
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function _netIfaceExists(name) {
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try {
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return fs.existsSync(`/sys/class/net/${name}`);
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} catch (_) {
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return false;
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}
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}
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/** 读取 `/sys/class/net/<iface>/carrier`，`1` 为链路 up；缺失或异常视为 down */
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function _sysfsCarrierUp(iface) {
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try {
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return fs.readFileSync(`/sys/class/net/${iface}/carrier`, 'utf8').trim() === '1';
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} catch (_) {
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return false;
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}
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}
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/** 非 WiFi、非典型虚拟接口，用于开发机扫描有线口（enp* 等） */
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function _isExcludedVirtualIface(name) {
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if (name === 'lo' || name === 'bonding_masters') return true;
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if (name.startsWith('wl')) return true;
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if (name.startsWith('docker')) return true;
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if (name.startsWith('veth')) return true;
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if (name.startsWith('virbr')) return true;
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if (name.startsWith('br-')) return true;
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if (name.startsWith('tun') || name.startsWith('tap')) return true;
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if (name.startsWith('wg') || name.startsWith('bond')) return true;
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if (name.startsWith('can')) return true;
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return false;
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}
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/**
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* 开发机：无 CLAWD_ETH_IFACE 且无 end0 时，扫描 sysfs 找第一个 carrier=1 的有线口。
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*/
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function _firstScanWiredIfaceWithCarrier() {
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try {
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const names = fs.readdirSync('/sys/class/net');
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for (const name of names.sort()) {
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if (_isExcludedVirtualIface(name)) continue;
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if (_sysfsCarrierUp(name)) return name;
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}
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} catch (_) {}
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return null;
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}
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/**
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* 返回当前可用于「有线 ping / 路由」的网卡名。
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* 优先级：CLAWD_ETH_IFACE → 存在 end0 则只用 end0 → 否则扫描 sysfs。
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*/
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function getWiredIfaceWithCarrier() {
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const explicit = process.env.CLAWD_ETH_IFACE;
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if (explicit) {
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return _netIfaceExists(explicit) && _sysfsCarrierUp(explicit) ? explicit : null;
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}
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if (_netIfaceExists(DEFAULT_ETH_IFACE)) {
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return _sysfsCarrierUp(DEFAULT_ETH_IFACE) ? DEFAULT_ETH_IFACE : null;
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}
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return _firstScanWiredIfaceWithCarrier();
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}
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function hasWiredCarrier() {
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return getWiredIfaceWithCarrier() !== null;
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}
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/**
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* LAN 面板灯：只反映 RJ45 对应口，与 `cat /sys/class/net/end0/carrier 2>/dev/null` 同源（仅读 carrier）。
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* 若配置的接口在 sysfs 中不存在（常见为开发机无 end0），则退回与 hasWiredCarrier() 一致，避免灯永远灭。
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*/
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function hasLanCableCarrier() {
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const iface = _ethIfaceEnvOrDefault();
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if (_netIfaceExists(iface)) return _sysfsCarrierUp(iface);
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return hasWiredCarrier();
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}
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function _tryPingInternet() {
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try {
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run('ping -c 1 -W 3 8.8.8.8');
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return true;
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} catch (_) {}
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// 开热点时默认路由可能走 wlan，无 -I 的 ping 会误判；指定有线口再试
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const wired = getWiredIfaceWithCarrier();
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if (wired) {
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try {
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run(`ping -c 1 -W 3 -I ${wired} 8.8.8.8`);
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return true;
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} catch (_) {}
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}
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return false;
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}
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/**
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* 仅经有线口 ping 公网（不依赖默认路由）。
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* AP 开启时 hasInternet() 易误判；维持 WS / 网络监视时用此兜底。
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*/
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function hasWiredInternetProbe() {
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const wired = getWiredIfaceWithCarrier();
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if (!wired) return false;
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try {
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run(`ping -c 1 -W 3 -I ${wired} 8.8.8.8`);
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return true;
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} catch (_) {}
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return false;
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}
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/**
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* 检测是否有互联网连接（nmcli 连通性 + ping 兜底）
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*/
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function hasInternet() {
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// 物理层快检：无 WiFi STA 且无任何有线 carrier → 立即 false（nmcli 有缓存，不可信）
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if (!isWifiStaConnected() && !hasWiredCarrier()) return false;
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try {
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const out = run('nmcli networking connectivity check').trim();
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if (out === 'full' || out === 'limited') return true;
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} catch (_) {}
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return _tryPingInternet();
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}
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/**
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* 获取默认 WiFi 接口名（wlan0 等）。
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* 必须 TYPE 精确为 wifi，不能用 grep wifi（会误匹配 wifi-p2p，导致选到 p2p-dev-wlan0，STA/热点均失败）。
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*/
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function getWifiIface() {
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if (AP_IFACE) return AP_IFACE;
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try {
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const out = run('nmcli -t -f DEVICE,TYPE device');
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let fallback = '';
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for (const line of out.split('\n')) {
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if (!line.trim()) continue;
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const parts = line.split(':');
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const dev = (parts[0] || '').trim();
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const type = (parts[1] || '').trim();
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if (type !== 'wifi' || !dev) continue;
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if (dev.startsWith('p2p-dev-')) continue;
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if (dev.startsWith('wlan')) return dev;
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if (!fallback) fallback = dev;
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}
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if (fallback) return fallback;
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} catch (_) {}
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try {
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const out = run("ls /sys/class/net | grep -E '^wl'");
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const iface = out.split('\n')[0].trim();
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if (iface) return iface;
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} catch (_) {}
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return 'wlan0';
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}
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/**
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* 扫描周围 WiFi，返回 [{ ssid, signal, security }]
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*/
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function scanWifi() {
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const iface = getWifiIface();
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try {
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// 先触发一次扫描
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try { run(`nmcli device wifi rescan ifname ${iface}`); } catch (_) {}
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// 等扫描完成
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sleep(2000);
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const out = run('nmcli -t -f SSID,SIGNAL,SECURITY device wifi list');
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const seen = new Set();
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const results = [];
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for (const line of out.split('\n')) {
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if (!line.trim()) continue;
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const parts = line.split(':');
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const ssid = parts[0].trim().replace(/\\:/g, ':');
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if (!ssid || seen.has(ssid)) continue;
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seen.add(ssid);
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results.push({
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ssid,
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signal: parseInt(parts[1], 10) || 0,
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security: parts.slice(2).join(':').trim() || 'Open',
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});
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}
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results.sort((a, b) => b.signal - a.signal);
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return results;
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} catch (e) {
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log.error('network', 'WiFi 扫描失败:', e.message);
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return [];
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}
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}
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/** AP 切 STA 后等待网卡进入 connected 的最长时间（不依赖外网探测） */
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const CONNECT_WIFI_STA_WAIT_MS = 25_000;
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const CONNECT_WIFI_STA_POLL_MS = 1_000;
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/** 不走 shell，避免 SSID/密码中的引号、空格、$ 等破坏命令 */
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function nmcliSync(args, timeoutMs = 60000) {
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const r = spawnSync('nmcli', args, {
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encoding: 'utf8',
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timeout: timeoutMs,
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maxBuffer: 2 * 1024 * 1024,
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});
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if (r.error) throw r.error;
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if (r.status !== 0) {
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const msg = (r.stderr || '').trim() || (r.stdout || '').trim() || `nmcli exit ${r.status}`;
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throw new Error(msg);
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}
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return (r.stdout || '').trim();
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}
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/**
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* 连接指定 WiFi（配网场景：成功 = NM 显示 STA 已连上目标网，不要求一定能 ping 通 8.8.8.8）
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* @returns {{ success: boolean, error?: string }}
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*/
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function connectWifi(ssid, password) {
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const iface = getWifiIface();
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log.info('network', `尝试连接 WiFi: ${ssid}（ifname=${iface}）`);
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try {
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try {
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nmcliSync(['connection', 'delete', ssid], 15000);
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} catch (_) {}
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// 关热点后部分固件需显式保证由 NM 管理、再关联
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try {
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nmcliSync(['device', 'set', iface, 'managed', 'yes'], 8000);
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} catch (_) {}
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const args = ['device', 'wifi', 'connect', ssid];
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if (password) args.push('password', password);
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args.push('ifname', iface);
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nmcliSync(args, 120000);
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const deadline = Date.now() + CONNECT_WIFI_STA_WAIT_MS;
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while (Date.now() < deadline) {
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if (isWifiStaConnected()) {
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if (hasInternet()) {
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log.info('network', `WiFi 已连接且有外网: ${ssid}`);
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} else {
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log.warn(
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'network',
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`WiFi STA 已连接（${ssid}），暂未检测到外网；配网仍视为成功（内网/防火墙/国内 DNS 常见）`,
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);
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}
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return { success: true };
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}
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sleep(CONNECT_WIFI_STA_POLL_MS);
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}
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return { success: false, error: '超时：网卡未进入已连接状态' };
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} catch (e) {
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log.error('network', `WiFi 连接失败: ${e.message}`);
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return { success: false, error: e.message };
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}
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}
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/**
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* 启动 WiFi AP 热点
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*/
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function startAP(clawId) {
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const iface = getWifiIface();
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const ssid = `${AP_SSID_PREFIX}${clawId || 'Setup'}`;
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log.info('network', `启动 AP 热点: ${ssid} (${iface})`);
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// 关闭已有热点
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stopAP();
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try {
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// nmcli 创建热点（开放网络）
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const cmd = [
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'nmcli device wifi hotspot',
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`ifname ${iface}`,
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`con-name ${CON_NAME}`,
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`ssid "${ssid}"`,
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'band bg',
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];
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// 如果需要密码
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if (AP_PASSWORD) {
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cmd.push(`password "${AP_PASSWORD}"`);
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}
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run(cmd.join(' '));
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// 等待 AP 启动
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sleep(2000);
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log.info('network', `AP 已启动: ${ssid}, 网关 ${AP_IP}`);
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return { ssid, ip: AP_IP, iface };
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} catch (e) {
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log.error('network', `AP 启动失败: ${e.message}`);
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throw e;
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}
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}
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/**
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* 关闭热点，恢复普通 WiFi 模式
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*/
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function stopAP() {
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try {
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run(`nmcli connection down ${CON_NAME}`);
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} catch (_) {}
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try {
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run(`nmcli connection delete ${CON_NAME}`);
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} catch (_) {}
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}
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// ── 工具 ─────────────────────────────────────────────────────────────────────
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function run(cmd, timeout = 10000) {
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return execSync(cmd, {
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encoding: 'utf8',
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timeout,
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stdio: ['ignore', 'pipe', 'pipe'],
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});
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}
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function sleep(ms) {
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execSync(`sleep ${ms / 1000}`, { timeout: ms + 2000 });
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}
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/**
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* 检测是否有已保存的 WiFi STA 连接（排除自身热点）
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*/
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function hasSavedWifiConnection() {
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try {
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const out = run('nmcli -t -f NAME,TYPE connection show');
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for (const line of out.split('\n')) {
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const [name, type] = line.split(':');
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if (type === '802-11-wireless' && name !== CON_NAME) {
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return true;
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}
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}
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} catch (_) {}
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return false;
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}
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/**
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* 是否已以 STA 连上某 WiFi（排除自身热点）。
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* 不用 device 列表按 `:` 拆字段（连接名含冒号会错；state 含 connecting 勿误匹配 connected）。
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*/
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function isWifiStaConnected() {
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const iface = getWifiIface();
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let state;
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let conn;
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try {
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state = nmcliSync(['-g', 'GENERAL.STATE', 'device', 'show', iface], 8000);
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conn = nmcliSync(['-g', 'GENERAL.CONNECTION', 'device', 'show', iface], 8000);
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} catch (_) {
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return false;
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}
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const s = (state || '').trim();
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const c = (conn || '').trim();
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if (!/\(connected\)/.test(s)) return false;
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if (!c || c === CON_NAME) return false;
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return true;
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}
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/**
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* 获取本机所有非回环 IPv4 地址，逗号拼接返回
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* 例：'192.168.1.100' 或 '192.168.1.100,10.0.0.5'
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*/
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function getLocalIps() {
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try {
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const ifaces = os.networkInterfaces();
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const ips = [];
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for (const [name, addrs] of Object.entries(ifaces)) {
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if (!addrs) continue;
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for (const addr of addrs) {
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if (addr.family === 'IPv4' && !addr.internal && !addr.address.startsWith('10.42.')) {
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ips.push(addr.address);
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}
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}
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}
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return ips.length > 0 ? ips.join(',') : null;
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} catch (e) {
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log.warn('network', '获取本机 IP 失败:', e.message);
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return null;
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}
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}
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module.exports = {
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hasInternet,
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hasWiredCarrier,
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hasLanCableCarrier,
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hasWiredInternetProbe,
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getWiredIfaceWithCarrier,
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hasSavedWifiConnection,
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isWifiStaConnected,
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getWifiIface,
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scanWifi,
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connectWifi,
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startAP,
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stopAP,
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AP_IP,
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getLocalIps,
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};
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