init

src/proxy.ts

@@ -0,0 +1,42 @@
+import { NextResponse } from "next/server";
+import type { NextRequest } from "next/server";
+import { ADMIN_SESSION_COOKIE } from "@/lib/auth/session";
+import { publicRequestUrl } from "@/lib/request-public-url";
+
+function hasValidSession(request: NextRequest): boolean {
+  return request.cookies.get(ADMIN_SESSION_COOKIE)?.value === "1";
+}
+
+export function proxy(request: NextRequest) {
+  const { pathname } = request.nextUrl;
+  const isLogin = pathname === "/login";
+  const isAuthApi = pathname.startsWith("/api/auth/");
+
+  if (isAuthApi) {
+    return NextResponse.next();
+  }
+
+  // Let route handlers return JSON (401, etc.). A redirect to /login breaks `fetch` + `res.json()` in the admin UI.
+  if (!hasValidSession(request) && pathname.startsWith("/api/")) {
+    return NextResponse.next();
+  }
+
+  if (isLogin) {
+    if (hasValidSession(request)) {
+      return NextResponse.redirect(publicRequestUrl(request, "/"));
+    }
+    return NextResponse.next();
+  }
+
+  if (!hasValidSession(request)) {
+    return NextResponse.redirect(publicRequestUrl(request, "/login"));
+  }
+
+  return NextResponse.next();
+}
+
+export const config = {
+  matcher: [
+    "/((?!_next/static|_next/image|favicon.ico|.*\\.(?:svg|png|jpg|jpeg|gif|webp)$).*)",
+  ],
+};