[BUGFIX] Use absolute path for media files in backend

Since #93048 using relative paths in backend does not
longer work in most cases. Therefore the MediaRenderers
should always use absoulte paths when in backend context.

Resolves: #93226
Releases: master
Change-Id: Iad08c8a4b8e255c67b6bb6fe168ecc4915620d35
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/67357Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Guido Schmechel <guido.schmechel@brandung.de>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Guido Schmechel <guido.schmechel@brandung.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Benni Mack <benni@typo3.org>

typo3/sysext/backend/Classes/Controller/ContentElement/ElementInformationController.php

@@ -318,14 +318,7 @@ class ElementInformationController
 
             // Check if there is a FileRenderer
             if ($fileRenderer !== null) {
-                $preview['fileRenderer'] = $fileRenderer->render(
-                    $this->fileObject,
-                    $width,
-                    $height,
-                    [],
-                    true
-                );
-
+                $preview['fileRenderer'] = $fileRenderer->render($this->fileObject, $width, $height);
             // else check if we can create an Image preview
             } elseif ($this->fileObject->isImage()) {
                 $preview['fileObject'] = $this->fileObject;

typo3/sysext/core/Classes/Resource/Rendering/AudioTagRenderer.php

@@ -15,9 +15,12 @@
 
 namespace TYPO3\CMS\Core\Resource\Rendering;
 
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Core\Http\ApplicationType;
 use TYPO3\CMS\Core\Resource\FileInterface;
 use TYPO3\CMS\Core\Resource\FileReference;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\Utility\PathUtility;
 
 /**
  * Class AudioTagRenderer
@@ -108,8 +111,22 @@ class AudioTagRenderer implements FileRendererInterface
         return sprintf(
             '<audio%s><source src="%s" type="%s"></audio>',
             empty($additionalAttributes) ? '' : ' ' . implode(' ', $additionalAttributes),
-            htmlspecialchars((string)$file->getPublicUrl($usedPathsRelativeToCurrentScript)),
+            htmlspecialchars($this->getSource($file, $usedPathsRelativeToCurrentScript)),
             $file->getMimeType()
         );
     }
+
+    protected function getSource(FileInterface $file, bool $usedPathsRelativeToCurrentScript): string
+    {
+        $source = (string)$file->getPublicUrl($usedPathsRelativeToCurrentScript);
+
+        // We need an absolute path for the backend
+        if (($GLOBALS['TYPO3_REQUEST'] ?? null) instanceof ServerRequestInterface
+            && ApplicationType::fromRequest($GLOBALS['TYPO3_REQUEST'])->isBackend()
+        ) {
+            $source = PathUtility::getAbsoluteWebPath($source);
+        }
+
+        return $source;
+    }
 }

typo3/sysext/core/Classes/Resource/Rendering/VideoTagRenderer.php

@@ -15,9 +15,12 @@
 
 namespace TYPO3\CMS\Core\Resource\Rendering;
 
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Core\Http\ApplicationType;
 use TYPO3\CMS\Core\Resource\FileInterface;
 use TYPO3\CMS\Core\Resource\FileReference;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\Utility\PathUtility;
 
 /**
  * Class VideoTagRenderer
@@ -125,8 +128,22 @@ class VideoTagRenderer implements FileRendererInterface
         return sprintf(
             '<video%s><source src="%s" type="%s"></video>',
             empty($attributes) ? '' : ' ' . implode(' ', $attributes),
-            htmlspecialchars((string)$file->getPublicUrl($usedPathsRelativeToCurrentScript)),
+            htmlspecialchars($this->getSource($file, $usedPathsRelativeToCurrentScript)),
             $file->getMimeType()
         );
     }
+
+    protected function getSource(FileInterface $file, bool $usedPathsRelativeToCurrentScript): string
+    {
+        $source = (string)$file->getPublicUrl($usedPathsRelativeToCurrentScript);
+
+        // We need an absolute path for the backend
+        if (($GLOBALS['TYPO3_REQUEST'] ?? null) instanceof ServerRequestInterface
+            && ApplicationType::fromRequest($GLOBALS['TYPO3_REQUEST'])->isBackend()
+        ) {
+            $source = PathUtility::getAbsoluteWebPath($source);
+        }
+
+        return $source;
+    }
 }