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performance improvement on proxy service

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This commit is contained in:
JBB0807 2025-05-21 11:16:13 -07:00
parent eadf769ab3
commit 82f0ee709f
2 changed files with 51 additions and 39 deletions
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67
proxy-service/server.js
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@ -5,28 +5,63 @@ 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);
// });
// Cache proxy instances per target to avoid recreating each time
const proxyCache = new Map();
// Basic IPv6 validation pattern (can be improved or replaced with a library like 'ipaddr.js')
const isValidIPv6 = (ip) => /^[0-9a-fA-F:]+$/.test(ip);
app.use('/:ipv6', (req, res, next) => {
const ipv6 = req.params.ipv6;
// Validate or sanitize the IPv6 if needed
if (!isValidIPv6(ipv6)) {
return res.status(400).send('Invalid IPv6 address');
}
const targetUrl = `http://[${ipv6}]:8000`;
console.log(`Proxying request to: ${targetUrl}`);
console.log(`Proxying 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');
}
});
// Reuse proxy middleware for the same target
if (!proxyCache.has(targetUrl)) {
proxyCache.set(targetUrl, createProxyMiddleware({
target: targetUrl,
changeOrigin: true,
logLevel: 'debug',
pathRewrite: (path, req) => path.replace(`/${ipv6}`, '/'),
onError(err, req, res) {
console.error(`Proxy error for ${targetUrl}:`, err.message);
if (!res.headersSent) {
res.status(502).send('Bad Gateway: Failed to connect to target');
}
}
}));
}
return proxy(req, res, next);
return proxyCache.get(targetUrl)(req, res, next);
});
app.listen(port, '0.0.0.0', () => {