first check if a extension exists before comparing it

diff --git a/apps/files_encryption/lib/util.php b/apps/files_encryption/lib/util.php
index 73191de5681c17fde5f53d0ddbeeee665d00181e..62f82ce1a969a3d7f9826dee65d7f656bf107747 100644 (file)
--- a/apps/files_encryption/lib/util.php
+++ b/apps/files_encryption/lib/util.php
@@ -1292,7 +1292,7 @@ class Util {
                $pathinfo = pathinfo($path);
                $partfile = false;
                $parentFolder = false;
-               if ($pathinfo['extension'] === 'part') {
+               if (array_key_exists('extension', $pathinfo) && $pathinfo['extension'] === 'part') {
                        // if the real file exists we check this file
                        if ($this->view->file_exists($this->userFilesDir . '/' . $pathinfo['dirname'] . '/' . $pathinfo['filename'])) {
                                $pathToCheck = $pathinfo['dirname'] . '/' . $pathinfo['filename'];