const fs = require("fs"); const express = require("express"); const fetch = require("node-fetch"); const htmlParser = require("node-html-parser"); const app = express(); app.use(express.json()); // for parsing application/json app.use(express.urlencoded({ extended: true })); // for parsing application/x-www-form-urlencoded let Proxy = async (req, res) => { const url = "https://" + req.originalUrl.slice(10); let f = await fetch(url, { method: req.method, }); if (false && f.headers.get("content-type").includes("html")) { const body = await f.text(); if (false && !htmlParser.valid(body)) { console.warn(`[ERROR] Invalid HTML at ${url}`); f.body.pipe(res); return; } const root = htmlParser.parse(body); let html = root.childNodes.filter( (x) => x.tagName && x.tagName.toLowerCase() == "html" )[0]; if (!html) { console.warn(`[ERROR] No at ${url}`); res.send(body); return; } res.send(html.toString()); } else { f.body.pipe(res); } }; const listener = (req, res) => { Proxy(req, res); }; app.get("/", (req, res) => res.redirect(`/https://www.google.com/`)); app.all("/*", listener); app.listen(3000, () => {});