fixed unset partname

diff --git a/includes/specials/SpecialUpload.php b/includes/specials/SpecialUpload.php
index 56201a2..6b2f4dc 100644 (file)
--- a/includes/specials/SpecialUpload.php
+++ b/includes/specials/SpecialUpload.php
@@ -405,6 +405,8 @@ class UploadForm extends SpecialPage {
 
                $filenamePrefixBlacklist = UploadBase::getFilenamePrefixBlacklist();
                # Do the match
+               if(!isset($partname))
+                       $partname = '';
                foreach( $filenamePrefixBlacklist as $prefix ) {
                        if ( substr( $partname, 0, strlen( $prefix ) ) == $prefix ) {
                                $warning .= '<li>' . wfMsgExt( 'filename-bad-prefix', 'parseinline', $prefix ) . '</li>';