Deny symbolic link deposit

bundle/medona/Controller/ArchiveTransfer.php

@@ -205,6 +205,13 @@ class ArchiveTransfer extends abstractMessage
 
         foreach (scandir($zipFolder) as $file) {
             if ($file != "." && $file != "..") {
+                if (unlink($zipFolder.DIRECTORY_SEPARATOR.$file)) {
+                    $this->sendError("202", "The container file contains symbolic links");
+                    $exception = \laabs::newException('medona/invalidMessageException', "Invalid message", 400);
+                    $exception->errors = $this->errors;
+
+                    throw $exception;
+                }
                 rename($zipFolder.DIRECTORY_SEPARATOR.$file, $messageDir.DIRECTORY_SEPARATOR.$file);
 
                 if (pathinfo($file, PATHINFO_FILENAME) == pathinfo($filename, PATHINFO_FILENAME)) {