skip illegal links

diff --git a/includes/SpecialWhatlinkshere.php b/includes/SpecialWhatlinkshere.php
index 23922fd..8d1c4ba 100644 (file)
--- a/includes/SpecialWhatlinkshere.php
+++ b/includes/SpecialWhatlinkshere.php
@@ -15,6 +15,10 @@ function wfSpecialWhatlinkshere($par = NULL)
                return;
        }
        $nt = Title::newFromURL( $target );
+       if( !$nt ) {
+               $wgOut->errorpage( "notargettitle", "notargettext" );
+               return;
+       }
        $wgOut->setPagetitle( $nt->getPrefixedText() );
        $wgOut->setSubtitle( wfMsg( "linklistsub" ) );
 
@@ -81,6 +85,9 @@ function wfShowIndirectLinks( $level, $lid )
        $wgOut->addHTML( "<ul>" );
        while ( $row = wfFetchObject( $res ) ) {
                $nt = Title::newFromDBkey( $row->l_from );
+               if( !$nt ) {
+                       $wgOut->addHTML( "<!-- bad backlink: " . htmlspecialchars( $row->l_from ) . " -->\n" );
+               }
                $ns = $nt->getNamespace();
                $t = wfStrencode( $nt->getDBkey() );
 
@@ -98,7 +105,7 @@ function wfShowIndirectLinks( $level, $lid )
                                wfShowIndirectLinks( $level + 1, $s->cur_id );
                        }
                }
-               $wgOut->addHTML( "</il>\n" );
+               $wgOut->addHTML( "</li>\n" );
        }
        $wgOut->addHTML( "</ul>\n" );
 }