feat: добавлена возможность поиска и отображения rule-sets из каталога SagerNet

Refs: None

src/server/index.js

@@ -572,6 +572,54 @@ async function handleApi(req, res) {
     }
   }
 
+  if (req.method === "GET" && req.url === "/api/rule-sets/sagernet-catalog") {
+    const cacheFile = path.join(
+      settings.dataDir,
+      "sagernet-catalog-cache.json",
+    );
+    const CACHE_TTL_MS = 24 * 60 * 60 * 1000; // 24 часа
+
+    if (fs.existsSync(cacheFile)) {
+      try {
+        const cached = JSON.parse(fs.readFileSync(cacheFile, "utf8"));
+        if (Date.now() - new Date(cached.cachedAt).getTime() < CACHE_TTL_MS) {
+          return sendJson(res, 200, { success: true, ...cached });
+        }
+      } catch {}
+    }
+
+    try {
+      const headers = { "User-Agent": "vpn-proxy-app" };
+      const [gsRes, giRes] = await Promise.all([
+        fetch(
+          "https://api.github.com/repos/SagerNet/sing-geosite/git/trees/rule-set?recursive=1",
+          { headers },
+        ),
+        fetch(
+          "https://api.github.com/repos/SagerNet/sing-geoip/git/trees/rule-set?recursive=1",
+          { headers },
+        ),
+      ]);
+      const gsData = await gsRes.json();
+      const giData = await giRes.json();
+
+      const geosite = (gsData.tree || [])
+        .filter((f) => f.path.endsWith(".srs"))
+        .map((f) => f.path.replace(".srs", ""))
+        .sort();
+      const geoip = (giData.tree || [])
+        .filter((f) => f.path.endsWith(".srs"))
+        .map((f) => f.path.replace(".srs", ""))
+        .sort();
+
+      const result = { geosite, geoip, cachedAt: new Date().toISOString() };
+      writeJson(cacheFile, result);
+      return sendJson(res, 200, { success: true, ...result });
+    } catch (err) {
+      return sendJson(res, 500, { success: false, error: err.message });
+    }
+  }
+
   if (req.method === "POST" && req.url === "/api/route/check") {
     const body = await readBody(req);
     const host = String(body.host || "").trim();