includes/SpecialWhatlinkshere.php

   1 <?php
   2
   3 function wfSpecialWhatlinkshere($par = NULL)
   4 {
   5         global $wgUser, $wgOut, $target;
   6         $fname = "wfSpecialWhatlinkshere";
   7
   8         if($par) {
   9                 $target = $par;
  10         } else {
  11                 $target = wfCleanQueryVar( $_REQUEST['target'] );
  12         }
  13         if ( "" == $target ) {
  14                 $wgOut->errorpage( "notargettitle", "notargettext" );
  15                 return;
  16         }
  17         $nt = Title::newFromURL( $target );
  18         if( !$nt ) {
  19                 $wgOut->errorpage( "notargettitle", "notargettext" );
  20                 return;
  21         }
  22         $wgOut->setPagetitle( $nt->getPrefixedText() );
  23         $wgOut->setSubtitle( wfMsg( "linklistsub" ) );
  24
  25         $id = $nt->getArticleID();
  26         $sk = $wgUser->getSkin();
  27         $isredir = " (" . wfMsg( "isredirect" ) . ")\n";
  28
  29         if ( 0 == $id ) {
  30                 $sql = "SELECT bl_from FROM brokenlinks WHERE bl_to='" .
  31                   wfStrencode( $nt->getPrefixedDBkey() ) . "' LIMIT 500";
  32                 $res = wfQuery( $sql, DB_READ, $fname );
  33
  34                 if ( 0 == wfNumRows( $res ) ) {
  35                         $wgOut->addHTML( wfMsg( "nolinkshere" ) );
  36                 } else {
  37                         $wgOut->addHTML( wfMsg( "linkshere" ) );
  38                         $wgOut->addHTML( "\n<ul>" );
  39
  40                         while ( $row = wfFetchObject( $res ) ) {
  41                                 $lid = $row->bl_from;
  42                                 $sql = "SELECT cur_namespace,cur_title,cur_is_redirect " .
  43                                   "FROM cur WHERE cur_id={$lid}";
  44                                 $res2 = wfQuery( $sql, DB_READ, $fname );
  45                                 $s = wfFetchObject( $res2 );
  46
  47                                 $n = Title::makeName( $s->cur_namespace, $s->cur_title );
  48                                 $link = $sk->makeKnownLink( $n, "", "redirect=no" );
  49                                 $wgOut->addHTML( "<li>{$link}" );
  50
  51                                 if ( 1 == $s->cur_is_redirect ) {
  52                                         $wgOut->addHTML( $isredir );
  53                                         wfShowIndirectLinks( 1, $lid );
  54                                 }
  55                                 $wgOut->addHTML( "</li>\n" );
  56                         }
  57                         $wgOut->addHTML( "</ul>\n" );
  58                         wfFreeResult( $res );
  59                 }
  60         } else {
  61                 wfShowIndirectLinks( 0, $id );
  62         }
  63 }
  64
  65 function wfShowIndirectLinks( $level, $lid )
  66 {
  67         global $wgOut, $wgUser;
  68         $fname = "wfShowIndirectLinks";
  69
  70         $sql = "SELECT l_from FROM links WHERE l_to={$lid} LIMIT 500";
  71         $res = wfQuery( $sql, DB_READ, $fname );
  72
  73         if ( 0 == wfNumRows( $res ) ) {
  74                 if ( 0 == $level ) {
  75                         $wgOut->addHTML( wfMsg( "nolinkshere" ) );
  76                 }
  77                 return;
  78         }
  79         if ( 0 == $level ) {
  80                 $wgOut->addHTML( wfMsg( "linkshere" ) );
  81         }
  82         $sk = $wgUser->getSkin();
  83         $isredir = " (" . wfMsg( "isredirect" ) . ")\n";
  84
  85         $wgOut->addHTML( "<ul>" );
  86         while ( $row = wfFetchObject( $res ) ) {
  87                 $nt = Title::newFromDBkey( $row->l_from );
  88                 if( !$nt ) {
  89                         $wgOut->addHTML( "<!-- bad backlink: " . htmlspecialchars( $row->l_from ) . " -->\n" );
  90                         continue;
  91                 }
  92                 $ns = $nt->getNamespace();
  93                 $t = wfStrencode( $nt->getDBkey() );
  94
  95                 # FIXME: this should be in a join above, or cached in the links table
  96
  97                 $sql = "SELECT cur_id,cur_is_redirect FROM cur " .
  98                   "WHERE cur_namespace={$ns} AND cur_title='{$t}'";
  99                 $res2 = wfQuery( $sql, DB_READ, $fname );
 100                 $s = wfFetchObject( $res2 );
 101
 102                 if ( 1 == $s->cur_is_redirect ) {
 103                     $extra = "redirect=no";
 104                 } else {
 105                     $extra = "";
 106                 }
 107
 108                 $link = $sk->makeKnownLink( $row->l_from, "", $extra );
 109                 $wgOut->addHTML( "<li>{$link}" );
 110
 111                 if ( 1 == $s->cur_is_redirect ) {
 112                     $wgOut->addHTML( $isredir );
 113                     if ( $level < 2 ) {
 114                         wfShowIndirectLinks( $level + 1, $s->cur_id );
 115                     }
 116                 }
 117                 $wgOut->addHTML( "</li>\n" );
 118         }
 119         $wgOut->addHTML( "</ul>\n" );
 120 }
 121
 122 ?>