Merge pull request #41185 from nextcloud/backport/41120/stable26

[stable26] Don't pass invalid streams to Imaginary
nextcloud · Nov 15, 2023 · 84210b3 · 84210b3
2 parents c8f1141 + f29b3be
commit 84210b3
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/lib/private/Preview/Imaginary.php b/lib/private/Preview/Imaginary.php
@@ -78,6 +78,9 @@ public function getCroppedThumbnail(File $file, int $maxX, int $maxY, bool $crop
 
 		// Object store
 		$stream = $file->fopen('r');
+		if (!$stream || !is_resource($stream) || feof($stream)) {
+			return null;
+		}
 
 		$httpClient = $this->service->newClient();