xtream proxy

Dockers/xtream-proxy/.dockerignore

@@ -0,0 +1,3 @@
+node_modules
+npm-debug.log
+hosts.txt.example

Dockers/xtream-proxy/.gitignore

@@ -0,0 +1 @@
+node_modules/

Dockers/xtream-proxy/Dockerfile

@@ -0,0 +1,27 @@
+FROM node:22-alpine
+
+WORKDIR /app
+
+COPY package.json package-lock.json ./
+RUN npm ci --omit=dev
+
+COPY server.js ./
+
+RUN addgroup -g 1001 -S nodejs \
+  && adduser -S nodejs -u 1001 \
+  && chown -R nodejs:nodejs /app
+
+USER nodejs
+
+EXPOSE 8080
+
+ENV LISTEN_PORT=8080
+ENV HOSTS_FILE=/config/hosts.txt
+ENV CHECK_INTERVAL_SEC=30
+ENV PING_TIMEOUT_MS=8000
+ENV HEALTH_PATH=/
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=15s --retries=3 \
+  CMD node -e "require('http').get('http://127.0.0.1:'+(process.env.LISTEN_PORT||8080)+'/health',(r)=>{let d='';r.on('data',c=>d+=c);r.on('end',()=>{try{process.exit(JSON.parse(d).ok?0:1)}catch{process.exit(1)}})}).on('error',()=>process.exit(1))"
+
+CMD ["npm", "start"]

Dockers/xtream-proxy/hosts.txt.example

@@ -0,0 +1,5 @@
+# One base URL per line (scheme + host + optional port). No path required.
+# Lines starting with # are ignored.
+
+http://panel1.example.com:8080
+https://backup.example.com

Dockers/xtream-proxy/package-lock.json

@@ -0,0 +1,874 @@
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+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    }
+  }
+}

Dockers/xtream-proxy/package.json

@@ -0,0 +1,12 @@
+{
+  "name": "xtream-proxy",
+  "version": "1.0.0",
+  "private": true,
+  "scripts": {
+    "start": "node server.js"
+  },
+  "dependencies": {
+    "express": "^4.21.0",
+    "http-proxy": "^1.18.1"
+  }
+}

Dockers/xtream-proxy/server.js

@@ -0,0 +1,198 @@
+'use strict';
+
+const fs = require('fs');
+const http = require('http');
+const https = require('https');
+const express = require('express');
+const httpProxy = require('http-proxy');
+
+const LISTEN_PORT = Number(process.env.LISTEN_PORT || 8080);
+const HOSTS_FILE = process.env.HOSTS_FILE || '/config/hosts.txt';
+const CHECK_INTERVAL_SEC = Math.max(5, Number(process.env.CHECK_INTERVAL_SEC || 30));
+const PING_TIMEOUT_MS = Math.max(1000, Number(process.env.PING_TIMEOUT_MS || 8000));
+const HEALTH_PATH = process.env.HEALTH_PATH || '/';
+
+let currentTarget = null;
+let lastStats = { checkedAt: null, results: [], selected: null };
+
+const proxy = httpProxy.createProxyServer({
+  ws: true,
+  xfwd: true,
+  proxyTimeout: 0,
+});
+
+proxy.on('error', (err, req, res) => {
+  if (res && !res.headersSent) {
+    res.writeHead(502, { 'Content-Type': 'text/plain' });
+    res.end(`Upstream error: ${err.message}`);
+  }
+});
+
+function readHostsFile() {
+  if (!fs.existsSync(HOSTS_FILE)) {
+    console.error(`Hosts file not found: ${HOSTS_FILE}`);
+    return [];
+  }
+  const raw = fs.readFileSync(HOSTS_FILE, 'utf8');
+  const lines = raw.split(/\r?\n/);
+  const urls = [];
+  for (const line of lines) {
+    const t = line.trim();
+    if (!t || t.startsWith('#')) continue;
+    try {
+      const u = new URL(t);
+      if (u.protocol !== 'http:' && u.protocol !== 'https:') continue;
+      const base = `${u.protocol}//${u.host}`;
+      urls.push(base);
+    } catch {
+      console.warn(`Skipping invalid URL line: ${t}`);
+    }
+  }
+  return [...new Set(urls)];
+}
+
+function pingBase(base, path) {
+  return new Promise((resolve) => {
+    let url;
+    try {
+      const p = path.startsWith('/') ? path : `/${path}`;
+      url = new URL(p, base.endsWith('/') ? base : `${base}/`);
+    } catch {
+      resolve({ base, ok: false, ms: null, error: 'bad_url' });
+      return;
+    }
+
+    const lib = url.protocol === 'https:' ? https : http;
+    const start = Date.now();
+    const req = lib.request(
+      {
+        protocol: url.protocol,
+        hostname: url.hostname,
+        port: url.port || (url.protocol === 'https:' ? 443 : 80),
+        path: url.pathname + url.search,
+        method: 'GET',
+        timeout: PING_TIMEOUT_MS,
+        headers: {
+          'User-Agent': 'xtream-proxy-health/1.0',
+          Connection: 'close',
+        },
+      },
+      (res) => {
+        res.resume();
+        res.on('end', () => {
+          const ms = Date.now() - start;
+          const ok = res.statusCode >= 200 && res.statusCode < 500;
+          resolve({ base, ok, ms, status: res.statusCode });
+        });
+        res.on('error', () => {
+          resolve({ base, ok: false, ms: null, error: 'response_error' });
+        });
+      }
+    );
+    req.on('error', (e) => {
+      resolve({ base, ok: false, ms: null, error: e.code || e.message });
+    });
+    req.on('timeout', () => {
+      req.destroy();
+      resolve({ base, ok: false, ms: null, error: 'timeout' });
+    });
+    req.end();
+  });
+}
+
+async function pickFastestHost() {
+  const hosts = readHostsFile();
+  if (hosts.length === 0) {
+    console.warn('No valid hosts in file; keeping previous target if any.');
+    lastStats = {
+      checkedAt: new Date().toISOString(),
+      results: [],
+      selected: currentTarget,
+    };
+    return;
+  }
+
+  const pings = await Promise.all(hosts.map((h) => pingBase(h, HEALTH_PATH)));
+  const ok = pings.filter((p) => p.ok && typeof p.ms === 'number');
+  ok.sort((a, b) => a.ms - b.ms);
+
+  lastStats = {
+    checkedAt: new Date().toISOString(),
+    results: pings,
+    selected: ok[0]?.base ?? currentTarget,
+  };
+
+  if (ok[0]) {
+    if (currentTarget !== ok[0].base) {
+      console.log(
+        `Selected upstream ${ok[0].base} (${ok[0].ms} ms). Others: ${ok
+          .slice(1)
+          .map((x) => `${x.base}=${x.ms}ms`)
+          .join(', ') || 'none'}`
+      );
+    }
+    currentTarget = ok[0].base;
+  } else {
+    console.warn(
+      'No host responded successfully; keeping previous target:',
+      currentTarget || '(none)'
+    );
+  }
+}
+
+function scheduleChecks() {
+  setInterval(() => {
+    pickFastestHost().catch((e) => console.error('Health check error:', e));
+  }, CHECK_INTERVAL_SEC * 1000);
+}
+
+const app = express();
+
+app.get('/health', (_req, res) => {
+  res.json({
+    ok: Boolean(currentTarget),
+    upstream: currentTarget,
+    intervalSec: CHECK_INTERVAL_SEC,
+    lastCheck: lastStats,
+  });
+});
+
+app.use((req, res) => {
+  if (!currentTarget) {
+    res.status(503).type('text/plain').send('No upstream available yet (hosts file empty or all pings failed).');
+    return;
+  }
+  proxy.web(req, res, {
+    target: currentTarget,
+    changeOrigin: true,
+    secure: process.env.PROXY_INSECURE_TLS !== '1',
+  });
+});
+
+const server = http.createServer(app);
+
+server.on('upgrade', (req, socket, head) => {
+  if (!currentTarget) {
+    socket.destroy();
+    return;
+  }
+  proxy.ws(req, socket, head, {
+    target: currentTarget,
+    changeOrigin: true,
+    secure: process.env.PROXY_INSECURE_TLS !== '1',
+  });
+});
+
+async function main() {
+  await pickFastestHost();
+  server.listen(LISTEN_PORT, () => {
+    console.log(`Xtream proxy listening on :${LISTEN_PORT}`);
+    console.log(`Hosts file: ${HOSTS_FILE}, interval: ${CHECK_INTERVAL_SEC}s, health path: ${HEALTH_PATH}`);
+    scheduleChecks();
+  });
+}
+
+main().catch((e) => {
+  console.error(e);
+  process.exit(1);
+});