Media manager: don't create empty namespaces FS#2642

Previously the media manager created an empty namespace whenever you
opened a non-existing namespace with upload permissions. Now the current
namespace is only displayed in the tree but not actually created.

1 files changed, 22 insertions, 4 deletions

diff --git a/inc/media.php b/inc/media.php
index bd80db577..db1ca0d57 100644
--- a/inc/media.php
+++ b/inc/media.php
@@ -1686,18 +1686,36 @@ function media_nstree($ns){
     $ns  = cleanID($ns);
     if(empty($ns)){
         global $ID;
-        $ns = dirname(str_replace(':','/',$ID));
-        if($ns == '.') $ns ='';
+        $ns = (string)getNS($ID);
     }
-    $ns  = utf8_encodeFN(str_replace(':','/',$ns));
+
+    $ns_dir  = utf8_encodeFN(str_replace(':','/',$ns));
 
     $data = array();
-    search($data,$conf['mediadir'],'search_index',array('ns' => $ns, 'nofiles' => true));
+    search($data,$conf['mediadir'],'search_index',array('ns' => $ns_dir, 'nofiles' => true));
 
     // wrap a list with the root level around the other namespaces
     array_unshift($data, array('level' => 0, 'id' => '', 'open' =>'true',
                                'label' => '['.$lang['mediaroot'].']'));
 
+    // insert the current ns into the hierarchy if it isn't already part of it
+    $ns_parts = explode(':', $ns);
+    $tmp_ns = '';
+    $pos = 0;
+    foreach ($ns_parts as $level => $part) {
+        if ($tmp_ns) $tmp_ns .= ':'.$part;
+        else $tmp_ns = $part;
+
+        // find the namespace parts or insert them
+        while ($data[$pos]['id'] != $tmp_ns) {
+            if ($pos >= count($data) || ($data[$pos]['level'] <= $level+1 && strnatcmp(utf8_encodeFN($data[$pos]['id']), utf8_encodeFN($tmp_ns)) > 0)) {
+                array_splice($data, $pos, 0, array(array('level' => $level+1, 'id' => $tmp_ns, 'open' => 'true')));
+                break;
+            }
+            ++$pos;
+        }
+    }
+
     echo html_buildlist($data,'idx','media_nstree_item','media_nstree_li');
 }