Properly handle null as ownerId if file system access is denied by access token

Signed-off-by: Julius Härtl <jus@bitgrid.net>

diff --git a/lib/private/Files/View.php b/lib/private/Files/View.php
index f12e4609e082bf341ef0302758b612c3bda2dc19..10fbf00e73c6f5d689beb20b719c63be0540ef7d 100644 (file)
--- a/lib/private/Files/View.php
+++ b/lib/private/Files/View.php
@@ -1381,8 +1381,12 @@ class View {
                        if ($mount instanceof MoveableMount && $internalPath === '') {
                                $data['permissions'] |= \OCP\Constants::PERMISSION_DELETE;
                        }
-
-                       $owner = $this->getUserObjectForOwner($storage->getOwner($internalPath));
+                       $ownerId = $storage->getOwner($internalPath);
+                       $owner = null;
+                       if ($ownerId !== null) {
+                               // ownerId might be null if files are accessed with an access token without file system access
+                               $owner = $this->getUserObjectForOwner($ownerId);
+                       }
                        $info = new FileInfo($path, $storage, $internalPath, $data, $mount, $owner);
 
                        if ($data and isset($data['fileid'])) {