Conversie codeigniter 4

app/Filters/AuthFilter.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace App\Filters;
+
+use CodeIgniter\Filters\FilterInterface;
+use CodeIgniter\HTTP\RequestInterface;
+use CodeIgniter\HTTP\ResponseInterface;
+
+class AuthFilter implements FilterInterface
+{
+    /**
+     * Check if user is authenticated
+     *
+     * @param RequestInterface $request
+     * @param array|null       $arguments
+     *
+     * @return RequestInterface|ResponseInterface|string|void
+     */
+    public function before(RequestInterface $request, $arguments = null)
+    {
+        // Check if user is authenticated
+        if (!defined('AUTHENTICATED') || AUTHENTICATED === false) {
+            // Check if this is an AJAX request
+            if ($request->isAJAX()) {
+                return \Config\Services::response()
+                    ->setStatusCode(401)
+                    ->setJSON(['error' => 'Unauthorized']);
+            }
+
+            // Redirect to login page
+            return redirect()->to('/');
+        }
+    }
+
+    /**
+     * Allows After filters to inspect and modify the response
+     * object as needed.
+     *
+     * @param RequestInterface  $request
+     * @param ResponseInterface $response
+     * @param array|null        $arguments
+     *
+     * @return ResponseInterface|void
+     */
+    public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
+    {
+        // No action needed after request
+    }
+}