added proxy service

proxy-service/server.js

@@ -0,0 +1,34 @@
+const express = require('express');
+const { createProxyMiddleware } = require('http-proxy-middleware');
+
+const app = express();
+const port = 8080;
+
+// Middleware to handle dynamic IPv6 proxying
+app.use('/:ipv6', (req, res, next) => {
+  const ipv6 = req.params.ipv6;
+
+  // Validate or sanitize the IPv6 if needed
+  const targetUrl = `http://[${ipv6}]:8000`;
+  console.log(`Proxying request to: ${targetUrl}`);
+
+  // Create and attach the proxy middleware *once per request*
+  const proxy = createProxyMiddleware({
+    target: targetUrl,
+    changeOrigin: true,
+    logLevel: 'debug',
+    // pathRewrite: {
+    //   [`^/${ipv6}`]: '/', // Send to root of the target
+    // },
+    onError(err, req, res) {
+      console.error('Proxy error:', err.message);
+      res.status(502).send('Bad Gateway: Failed to connect to target');
+    }
+  });
+
+  return proxy(req, res, next);
+});
+
+app.listen(port, '0.0.0.0', () => {
+  console.log(`Proxy server listening on http://0.0.0.0:${port}`);
+});