From 760265d136ac6652958681a0571baceec88c5c87 Mon Sep 17 00:00:00 2001
From: Uwe Steinmann <steinm@debian.org>
Date: Fri, 18 Dec 2020 10:19:49 +0100
Subject: [PATCH] check if folder for jstree is actually accesible

---
 views/bootstrap/class.Bootstrap.php | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/views/bootstrap/class.Bootstrap.php b/views/bootstrap/class.Bootstrap.php
index b42e00940..9d686bbfd 100644
--- a/views/bootstrap/class.Bootstrap.php
+++ b/views/bootstrap/class.Bootstrap.php
@@ -1899,8 +1899,7 @@ $(document).ready(function() {
 		} /* }}} */
 
 		$orderdir = (isset($orderby[1]) ? ($orderby[1] == 'd' ? 'desc' : 'asc') : 'asc');
-		if($folderid) {
-			$folder = $this->params['dms']->getFolder($folderid);
+		if($folderid && ($folder = $this->params['dms']->getFolder($folderid))) {
 			if(!$partialtree) {
 				$path = $folder->getPath();
 				/* Get the first folder (root folder) of path */
@@ -1930,8 +1929,10 @@ $(document).ready(function() {
 			}
 			
 		} else {
-			$root = $this->params['dms']->getFolder($this->params['rootfolderid']);
-			$tree = array(array('label'=>$root->getName(), 'id'=>$root->getID(), 'load_on_demand'=>false, 'is_folder'=>true));
+			if($root = $this->params['dms']->getFolder($this->params['rootfolderid']))
+				$tree = array(array('label'=>$root->getName(), 'id'=>$root->getID(), 'load_on_demand'=>false, 'is_folder'=>true));
+			else
+				$tree = array();
 		}
 ?>
 var data = <?php echo json_encode($tree); ?>;