Fix for make_file_matrix

git-svn-id: https://code.elgg.org/elgg/trunk@563 36083f99-b078-4883-b0ff-0f9b5a30f544

1 files changed, 4 insertions, 2 deletions

diff --git a/engine/lib/filestore.php b/engine/lib/filestore.php
index a649bd303..c52599af5 100644
--- a/engine/lib/filestore.php
+++ b/engine/lib/filestore.php
@@ -208,8 +208,10 @@
 			if ($len>$this->matrix_depth)
 				$len = $this->matrix_depth;
 			
-			for ($n = 0; $n < $len; $n++)
-				$matrix .= $filename[$n] . "/";	
+			for ($n = 0; $n < $len; $n++) {

+				if (ctype_alnum($filename[$n]))
+					$matrix .= $filename[$n] . "/";

+			}	
 	
 			return $matrix;
 		}