Merge pull request #20579 from nextcloud/backport/20449/stable17

[stable17] Array offset error due to empty file versions array
nextcloud · Apr 24, 2020 · 7da291b · 7da291b
2 parents 8e86a45 + e24e395
commit 7da291b
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/apps/files_versions/lib/Storage.php b/apps/files_versions/lib/Storage.php
@@ -647,6 +647,11 @@ protected static function getAutoExpireList($time, $versions) {
 		}
 
 		$firstVersion = reset($versions);
+
+		if ($firstVersion === false) {
+			return [$toDelete, $size];
+		}
+
 		$firstKey = key($versions);
 		$prevTimestamp = $firstVersion['version'];
 		$nextVersion = $firstVersion['version'] - $step;