poke/p/server.js

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const express = require("express");
const fetch = require("node-fetch");
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',
];
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const app = express();
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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();
});
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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 {
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url = new URL("https://" + req.originalUrl.slice(10));
} catch(e) {
console.log('==> Cannot parse URL: ' + e);
return res.status(400).send('Malformed URL');
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}
if (!URL_WHITELIST.includes(url.host)) {
console.log(`==> Refusing to proxy host ${url.host}`);
res.status(401).send(`Hostname '${url.host}' is not permitted`);
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return;
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}
console.log(`==> Proxying request`);
let f = await fetch(url, {
method: req.method,
});
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f.body.pipe(res);
} catch(e) {
console.log(`==> Error: ${e}`);
res.status(500).send('Internal server error');
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}
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};
const listener = (req, res) => {
proxy(req, res);
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};
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app.get("/", (req, res) =>
res.redirect(`https://poketube.fun/watch?v=l3eww1dnd0k`)
);
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app.all("/*", listener);
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app.listen(3000, () => console.log('Listening on 0.0.0.0:3000'));