fix issue with spamming logging files when loading cached thumbnail

diff --git a/lib/private/preview.php b/lib/private/preview.php
index 798a1322b03898acb4176f06a8ff0560c385afe0..b0d91fd56801e96d0b6a08bf892fc4c2a58a5c64 100755 (executable)
--- a/lib/private/preview.php
+++ b/lib/private/preview.php
@@ -403,7 +403,9 @@ class Preview {
                $cached = $this->isCached();
 
                if ($cached) {
-                       $image = new \OC_Image($this->userView->file_get_contents($cached, 'r'));
+                       $stream = $this->userView->fopen($cached, 'r');
+                       $image = new \OC_Image();
+                       $image->loadFromFileHandle($stream);
                        $this->preview = $image->valid() ? $image : null;
                        $this->resizeAndCrop();
                }