poke/p/server.js
2022-12-29 15:38:44 +00:00

84 lines
1.9 KiB
JavaScript

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",
"is2-ssl.mzstatic.com",
"is1-ssl.mzstatic.com",
"is3-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(10));
} 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"));