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-rw-r--r--lib/private/Preview/ProviderV2.php3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/private/Preview/ProviderV2.php b/lib/private/Preview/ProviderV2.php
index ca10aa67b36..7251dd70d17 100644
--- a/lib/private/Preview/ProviderV2.php
+++ b/lib/private/Preview/ProviderV2.php
@@ -71,6 +71,9 @@ abstract class ProviderV2 implements IProviderV2 {
$absPath = \OC::$server->getTempManager()->getTemporaryFile();
$content = $file->fopen('r');
+ if ($content === false) {
+ return false;
+ }
if ($maxSize) {
$content = stream_get_contents($content, $maxSize);