funny curl

functions/_middleware.ts

@@ -0,0 +1,22 @@
+import curlResponse from "../src/curl-response.ts";
+
+interface PagesContext {
+    request: Request;
+    next(): Promise<Response>;
+}
+
+export function onRequest(context: PagesContext): Response | Promise<Response> {
+    const { request } = context;
+    const userAgent = request.headers.get("user-agent") ?? "";
+    const pathname = new URL(request.url).pathname;
+
+    if (
+        request.method === "GET" &&
+        pathname === "/" &&
+        /^curl(?:\/|$)/i.test(userAgent)
+    ) {
+        return curlResponse();
+    }
+
+    return context.next();
+}