const fs = require("fs"); const express = require("express"); const fetch = require("node-fetch"); const htmlParser = require("node-html-parser"); const { URL } = require("url"); // Array of hostnames that will be proxied const URL_WHITELIST = [ 'i.ytimg.com', 'yt3.googleusercontent.com', 'cdn.glitch.global', 'cdn.statically.io', 'site-assets.fontawesome.com', 'fonts.gstatic.com', 'yt3.ggpht.com', 'tube.kuylar.dev', 'lh3.googleusercontent.com', 'is4-ssl.mzstatic.com', 'twemoji.maxcdn.com', 'unpkg.com', ]; const app = express(); app.use(express.json()); // for parsing application/json app.use(express.urlencoded({ extended: true })); // for parsing application/x-www-form-urlencoded app.use(function (req, res, next) { console.log(`=> ${req.method} ${req.originalUrl.slice(1)}`) next(); }); app.use(function (req, res, next) { res.header("Access-Control-Allow-Origin", "*"); next(); }); /** * @param {express.Request} req * @param {express.Response} res */ const proxy = async (req, res) => { try { let url; try { url = new URL("https://" + req.originalUrl.slice(1)); } catch(e) { console.log('==> Cannot parse URL: ' + e); return res.status(400).send('Malformed URL'); } if (!URL_WHITELIST.includes(url.host)) { console.log(`==> Refusing to proxy host ${url.host}`); res.status(401).send(`Hostname '${url.host}' is not permitted`); return; } console.log(`==> Proxying request`); let f = await fetch(url, { method: req.method, }); f.body.pipe(res); } catch(e) { console.log(`==> Error: ${e}`); res.status(500).send('Internal server error'); } }; const listener = (req, res) => { proxy(req, res); }; app.get("/", (req, res) => res.redirect(`https://poketube.fun/watch?v=l3eww1dnd0k`) ); app.all("/*", listener); app.listen(3000, () => console.log('Listening on 0.0.0.0:3000'));