require('dotenv').config({ quiet: true });

const express = require('express');

const { createProxyMiddleware } = require('http-proxy-middleware');

const app = express();

const host = process.env.HOST || '0.0.0.0';

const port = process.env.PORT || 3000;

app.use(async (req, res, next) => {

res.header('Access-Control-Allow-Origin', '*');

res.header('Access-Control-Allow-Methods', 'GET,POST,PUT,DELETE,PATCH,OPTIONS,HEAD');

res.header('Access-Control-Allow-Headers', 'Content-Type, Authorization, X-Requested-With');

if (req.method === 'OPTIONS') return res.sendStatus(204);

const fullPath = req.originalUrl.slice(1); //req.path.slice(1);

let targetUrl;

try {

targetUrl = decodeURIComponent(fullPath); //fullPath;

} catch {

return res.status(400).send('Invalid URL encoding');

}

console.log('=='+targetUrl+'==');

if (!/^(http|https)?:\/\//i.test(targetUrl)) {

return res.status(400).send('Invalid target URL. *Must start with http:// or https://');

}

const proxy = createProxyMiddleware({

target: targetUrl,

changeOrigin: true,

secure: false,

logLevel: 'silent',

onProxyReq: (proxyReq, req, res) => {

// Example: override Host header manually if needed:

console.log(proxyReq.headers)

console.log(req.headers)

proxyReq.setHeader('Host', new URL(targetUrl).host);

},

onProxyRes(proxyRes, req, res) {

proxyRes.headers['access-control-allow-origin'] = '*';

proxyRes.headers['access-control-allow-methods'] = 'GET,POST,PUT,DELETE,PATCH,OPTIONS,HEAD';

proxyRes.headers['access-control-allow-headers'] = 'Content-Type, Authorization, X-Requested-With';

},

onError(err, req, res) {

res.status(500).send('Proxy error: ' + err.message);

}

});

proxy(req, res, next);

});

app.listen(PORT, () => {

console.log(`Proxy server listening on port ${PORT}`);

});