Add 'pages-runtime.worker.js'

pages-runtime.worker.js

@@ -0,0 +1,66 @@
+export default {
+  async fetch(request, env) {
+    const url = new URL(request.url);
+    let pathname = url.pathname.replace(/\/{2,}/g, "/");
+
+    // Serve admin UI at root /
+    if (pathname === "/") {
+      return serveFromKV(env, "admin", "index.html");
+    }
+
+    // Normalize /site -> /site/
+    if (!pathname.endsWith("/") && pathname.split("/").length === 2) {
+      const redirectUrl = new URL(url);
+      redirectUrl.pathname = pathname + "/";
+      return Response.redirect(redirectUrl.toString(), 301);
+    }
+
+    // Split path
+    const parts = pathname.replace(/^\/+/, "").split("/");
+
+    if (!parts[0]) {
+      return new Response("Not Found", { status: 404 });
+    }
+
+    const site = parts[0];
+    const filePath =
+      parts.length === 1 || parts[1] === ""
+        ? "index.html"
+        : parts.slice(1).join("/");
+
+    return serveFromKV(env, site, filePath);
+  },
+};
+
+async function serveFromKV(env, site, filePath) {
+  const key = `site:${site}:${filePath}`;
+
+  const content = await env.PAGES_KV.get(key, {
+    type: "arrayBuffer",
+  });
+
+  if (!content) {
+    return new Response("Not Found", { status: 404 });
+  }
+
+  return new Response(content, {
+    headers: {
+      "Content-Type": contentType(filePath),
+      "Cache-Control": "public, max-age=300",
+    },
+  });
+}
+
+function contentType(path) {
+  if (path.endsWith(".html")) return "text/html; charset=utf-8";
+  if (path.endsWith(".css")) return "text/css; charset=utf-8";
+  if (path.endsWith(".js")) return "application/javascript; charset=utf-8";
+  if (path.endsWith(".json")) return "application/json; charset=utf-8";
+  if (path.endsWith(".png")) return "image/png";
+  if (path.endsWith(".jpg") || path.endsWith(".jpeg")) return "image/jpeg";
+  if (path.endsWith(".svg")) return "image/svg+xml";
+  if (path.endsWith(".ico")) return "image/x-icon";
+  if (path.endsWith(".woff")) return "font/woff";
+  if (path.endsWith(".woff2")) return "font/woff2";
+  return "application/octet-stream";
+}