| 18 | } |
| 19 | |
| 20 | export function createProxyServer( |
| 21 | options: ProxyServerOptions |
| 22 | ): http.Server { |
| 23 | const { targetPort, targetHost, proxyPort, wsPort, getActiveClient } = options; |
| 24 | |
| 25 | const proxy = httpProxy.createProxyServer({ |
| 26 | target: `http://${targetHost}:${targetPort}`, |
| 27 | ws: true, |
| 28 | selfHandleResponse: true, |
| 29 | }); |
| 30 | |
| 31 | const bundledOverlayPath = path.join(__dirname, "overlay.js"); |
| 32 | const workspaceOverlayPath = path.resolve(__dirname, "../../overlay/dist/overlay.js"); |
| 33 | const overlayPath = fs.existsSync(workspaceOverlayPath) |
| 34 | ? workspaceOverlayPath |
| 35 | : bundledOverlayPath; |
| 36 | let upstreamDown = false; |
| 37 | |
| 38 | const fontsDir = path.join(__dirname, "fonts"); |
| 39 | |
| 40 | const server = http.createServer((req, res) => { |
| 41 | // Normalize URL to prevent path traversal |
| 42 | const normalizedUrl = new URL(req.url || "/", "http://localhost").pathname; |
| 43 | |
| 44 | // Serve overlay bundle |
| 45 | if (normalizedUrl === "/__react-rewrite/overlay.js") { |
| 46 | res.writeHead(200, { "Content-Type": "application/javascript" }); |
| 47 | fs.createReadStream(overlayPath).pipe(res); |
| 48 | return; |
| 49 | } |
| 50 | |
| 51 | // Serve font files |
| 52 | if (normalizedUrl === "/__react-rewrite/inter-regular.woff2") { |
| 53 | res.writeHead(200, { |
| 54 | "Content-Type": "font/woff2", |
| 55 | "Cache-Control": "public, max-age=31536000, immutable", |
| 56 | }); |
| 57 | fs.createReadStream(path.join(fontsDir, "inter-regular.woff2")).pipe(res); |
| 58 | return; |
| 59 | } |
| 60 | if (normalizedUrl === "/__react-rewrite/inter-semibold.woff2") { |
| 61 | res.writeHead(200, { |
| 62 | "Content-Type": "font/woff2", |
| 63 | "Cache-Control": "public, max-age=31536000, immutable", |
| 64 | }); |
| 65 | fs.createReadStream(path.join(fontsDir, "inter-semibold.woff2")).pipe(res); |
| 66 | return; |
| 67 | } |
| 68 | |
| 69 | // For HTML requests: disable caching so we always get the full response |
| 70 | // to inject into (prevents 304 Not Modified with empty body) |
| 71 | if (req.headers.accept?.includes("text/html")) { |
| 72 | req.headers["accept-encoding"] = "identity"; |
| 73 | delete req.headers["if-none-match"]; |
| 74 | delete req.headers["if-modified-since"]; |
| 75 | } |
| 76 | |
| 77 | proxy.web(req, res); |