Merge pull request #5519 from christianbeeznest/ofaj-21707

Internal: Fix special character issue in file attachments for downloads - BT#21707

src/CoreBundle/Controller/ResourceController.php

@@ -456,7 +456,7 @@ class ResourceController extends AbstractResourceController implements CourseCon
     /**
      * @return mixed|StreamedResponse
      */
-    private function processFile(Request $request, ResourceNode $resourceNode, string $mode = 'show', string $filter = '', ?array $allUserInfo = null)
+    private function processFile(Request $request, ResourceNode $resourceNode, string $mode = 'show', string $filter = '', ?array $allUserInfo = null): mixed
     {
         $this->denyAccessUnlessGranted(
             ResourceNodeVoter::VIEW,
@@ -554,9 +554,6 @@ class ResourceController extends AbstractResourceController implements CourseCon
                         $content = str_replace('</head>', $links.'</head>', $content);
                     }
                     $response->setContent($content);
-                    /*$contents = $this->renderView('@ChamiloCore/Resource/view_html.twig', [
-                        'category' => '...',
-                    ]);*/
 
                     return $response;
                 }
@@ -572,7 +569,9 @@ class ResourceController extends AbstractResourceController implements CourseCon
             }
         );
 
-        // Transliterator::transliterate($fileName)
+        // Convert the file name to ASCII using iconv
+        $fileName = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $fileName);
+
         $disposition = $response->headers->makeDisposition(
             $forceDownload ? ResponseHeaderBag::DISPOSITION_ATTACHMENT : ResponseHeaderBag::DISPOSITION_INLINE,
             $fileName