Thou shalt not corrupt the answer of a cache request

diff --git a/apps/files_sharing/lib/readonlycache.php b/apps/files_sharing/lib/readonlycache.php
index ebef1634757ee6a00daecb63eab6ed43913f6968..c7640f896f467f4c175935e704da51c42baf1510 100644 (file)
--- a/apps/files_sharing/lib/readonlycache.php
+++ b/apps/files_sharing/lib/readonlycache.php
@@ -28,7 +28,9 @@ use OC\Files\Cache\Cache;
 class ReadOnlyCache extends Cache {
        public function get($path) {
                $data = parent::get($path);
-               $data['permissions'] &= (\OCP\Constants::PERMISSION_READ | \OCP\Constants::PERMISSION_SHARE);
+               if ($data !== false) {
+                       $data['permissions'] &= (\OCP\Constants::PERMISSION_READ | \OCP\Constants::PERMISSION_SHARE);
+               }
                return $data;
        }