Add subscription info refresh endpoint and UI stats

src/server/index.js

@@ -4,7 +4,7 @@ import path from "node:path";
 import crypto from "node:crypto";
 import { spawn, spawnSync } from "node:child_process";
 import { settings } from "./config.js";
-import { fetchSubscription } from "./subscription.js";
+import { fetchSubscription, fetchSubscriptionInfo } from "./subscription.js";
 import os from "node:os";
 import {
   buildGatewayConfig,
@@ -1424,6 +1424,19 @@ async function handleApi(req, res) {
     return sendJson(res, 200, { success: true, ...parsed });
   }
 
+  if (req.method === "POST" && req.url === "/api/subscription/refresh-info") {
+    const prevState = readJson(settings.statePath, {});
+    if (!prevState.subscriptionUrl) {
+      return sendJson(res, 400, { success: false, error: "Подписка не настроена" });
+    }
+
+    const info = await fetchSubscriptionInfo(prevState.subscriptionUrl);
+    writeJson(settings.statePath, { ...prevState, ...info });
+    const cached = readJson(settings.subscriptionCachePath, null);
+    if (cached) writeJson(settings.subscriptionCachePath, { ...cached, ...info });
+    return sendJson(res, 200, { success: true, ...info });
+  }
+
   if (req.method === "DELETE" && req.url === "/api/subscription") {
     if (fs.existsSync(settings.subscriptionCachePath))
       fs.rmSync(settings.subscriptionCachePath);

src/server/subscription.js

@@ -136,7 +136,7 @@ export function parseSubscriptionBody(body) {
   return { config: parsedConfig, servers };
 }
 
-export async function fetchSubscription(url) {
+async function requestSubscription(url) {
   let parsedUrl;
   try {
     parsedUrl = new URL(url);
@@ -157,6 +157,21 @@ export async function fetchSubscription(url) {
     throw new Error(`Subscription request failed: HTTP ${response.status}`);
   }
 
+  return response;
+}
+
+export async function fetchSubscriptionInfo(url) {
+  const response = await requestSubscription(url);
+  await response.body?.cancel();
+  return {
+    userInfo: parseUserInfo(response.headers.get('subscription-userinfo')),
+    fetchedAt: new Date().toISOString(),
+  };
+}
+
+export async function fetchSubscription(url) {
+  const response = await requestSubscription(url);
+
   const body = await response.text();
   const userInfo = parseUserInfo(response.headers.get('subscription-userinfo'));
   const parsed = parseSubscriptionBody(body);