fix(s3): add proxy to serve images from s3 to client

refs #321

modules/Media/Controllers/MediaController.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright  2020 Ad Aures
+ * @license    https://www.gnu.org/licenses/agpl-3.0.en.html AGPL3
+ * @link       https://castopod.org/
+ */
+
+namespace Modules\Media\Controllers;
+
+use CodeIgniter\Controller;
+use CodeIgniter\HTTP\Response;
+use Modules\Media\FileManagers\FileManagerInterface;
+
+class MediaController extends Controller
+{
+    public function serve(string ...$key): Response
+    {
+        /** @var FileManagerInterface $fileManager */
+        $fileManager = service('file_manager');
+
+        return $fileManager->serve(implode('/', $key));
+    }
+}