hotline#158762 : donot show not readable directory of file

src/Storm/FileSystem/Disk.php

@@ -82,13 +82,13 @@ class Storm_FileSystem_Disk extends Storm_FileSystem_Abstract {
 
 
   public function directoryNamesAt($path) {
-    if (!file_exists($path))
+    if (!file_exists($path) || !is_readable($path) )
       return [];
 
     $dirs = [];
     foreach (new DirectoryIterator($path) as $entry) {
-      if ($entry->isDir() && !$entry->isDot())
-        $dirs[$entry->getFilename()] = $entry->getFilename();
+      if ($entry->isDir() && $entry->isReadable() && !$entry->isDot())
+          $dirs[$entry->getFilename()] = $entry->getFilename();
     }
 
     asort($dirs);
@@ -97,12 +97,13 @@ class Storm_FileSystem_Disk extends Storm_FileSystem_Abstract {
 
 
   public function fileNamesAt($path) {
-    if (!file_exists($path))
+    if (!file_exists($path)
+        || !is_readable($path))
       return [];
 
     $files = [];
     foreach (new DirectoryIterator($path) as $entry) {
-      if ($entry->isFile() && !$entry->isDot())
+      if ($entry->isFile() && $entry->isReadable() && !$entry->isDot())
         $files[$entry->getFilename()] = $entry->getFilename();
     }