feat(PingServices): add endpoint and dashboard component for measuring RTT to key services (Google, Cloudflare, Yandex, Instagram)

backend/routes/miscRoutes.js

@@ -309,6 +309,59 @@ function tcpCheck(host, port, timeoutMs) {
   });
 }
 
+/** Измерить RTT (мс) до host:port по TCP. Возвращает число мс или null при ошибке/таймауте. */
+function measureTcpRtt(host, port = 443, timeoutMs = 6000) {
+  return new Promise((resolve) => {
+    const start = Date.now();
+    const socket = new net.Socket();
+    let settled = false;
+    const settle = (ms) => {
+      if (!settled) {
+        settled = true;
+        try { socket.destroy(); } catch (_) {}
+        resolve(ms);
+      }
+    };
+    socket.setTimeout(timeoutMs, () => settle(null));
+    socket.once('error', () => settle(null));
+    socket.connect(port, host, () => {
+      const ms = Math.round(Date.now() - start);
+      settle(ms);
+    });
+  });
+}
+
+/** Список целей для пинга с главной: id, имя, хост, порт */
+const PING_SERVICES = [
+  { id: 'google', name: 'Google', host: '8.8.8.8', port: 443 },
+  { id: 'cloudflare', name: 'Cloudflare', host: '1.1.1.1', port: 443 },
+  { id: 'yandex', name: 'Yandex', host: 'ya.ru', port: 443 },
+  { id: 'instagram', name: 'Instagram', host: 'instagram.com', port: 443 },
+];
+
+// GET /api/ping-services — RTT до Google, Cloudflare, Yandex, Instagram (для карточек на дашборде)
+async function getPingServices(req, res) {
+  try {
+    const results = await Promise.all(
+      PING_SERVICES.map(async (svc) => {
+        const ms = await measureTcpRtt(svc.host, svc.port, 6000);
+        return { id: svc.id, name: svc.name, host: svc.host, ms };
+      })
+    );
+    const byId = {};
+    results.forEach((r) => { byId[r.id] = r; });
+    res.json(byId);
+  } catch (e) {
+    console.error('ping-services error', e);
+    res.status(500).json({
+      google: { id: 'google', name: 'Google', host: '8.8.8.8', ms: null },
+      cloudflare: { id: 'cloudflare', name: 'Cloudflare', host: '1.1.1.1', ms: null },
+      yandex: { id: 'yandex', name: 'Yandex', host: 'ya.ru', ms: null },
+      instagram: { id: 'instagram', name: 'Instagram', host: 'instagram.com', ms: null },
+    });
+  }
+}
+
 function anyTrue(promises) {
   return new Promise((resolve) => {
     if (!Array.isArray(promises) || promises.length === 0) return resolve(false);
@@ -524,5 +577,6 @@ module.exports = {
   getWsUrl,
   getUiSettings,
   postUiSettings,
+  getPingServices,
 };
 

backend/server.js

@@ -439,6 +439,7 @@ app.post('/api/update-bgp/background', bgpUpdateLimiter, miscRoutes.updateBgpBac
 app.get('/api/ws/url', miscRoutes.getWsUrl);
 app.get('/api/ui-settings', miscRoutes.getUiSettings);
 app.post('/api/ui-settings', miscRoutes.postUiSettings);
+app.get('/api/ping-services', miscRoutes.getPingServices);
 
 // === IPSEC PASSWORDS ===
 app.get('/api/ipsec-passwords', ipsecPasswordsRoutes.getIpsecPasswords);