includes/SpecialValidate.php

   1 <?php
   2 # Copyright (C) 2004 Magnus Manske <magnus.manske@web.de>
   3 # http://www.mediawiki.org/
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License along
  16 # with this program; if not, write to the Free Software Foundation, Inc.,
  17 # 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18 # http://www.gnu.org/copyleft/gpl.html
  19
  20 class Validation
  21         {
  22
  23         function find_this_version ( $article_title , &$article_time , &$id , &$tab )
  24                 {
  25                 $id = "" ;
  26                 $tab = "" ;
  27                 $sql = "SELECT cur_id,cur_timestamp FROM cur WHERE cur_namespace=0 AND cur_title='{$article_title}'" ;
  28                 $res = wfQuery( $sql, DB_READ );
  29                 if( $s = wfFetchObject( $res ) )
  30                         {
  31                         if ( $article_time == "" ) $article_time = $s->cur_timestamp ; # No timestamp = current version
  32                         if ( $article_time == $s->cur_timestamp ) # Means current version
  33                                 {
  34                                 $tab = "cur" ;
  35                                 $id = $s->cur_id ;
  36                                 }
  37                         }
  38
  39                 if ( $id == "" )
  40                         {
  41                         $sql = "SELECT old_id FROM old WHERE old_namespace=0 AND old_title='{$article_title}' AND old_timestamp='{$article_time}'" ;
  42                         $res = wfQuery( $sql, DB_READ );
  43                         if( $s = wfFetchObject( $res ) )
  44                                 {
  45                                 $tab = "old" ;
  46                                 $id = $s->old_id ;
  47                                 }
  48                         }
  49                 }
  50
  51         function get_prev_data ( $user_id , $article_title , $article_timestamp = "" )
  52                 {
  53                 $ret = array () ;
  54                 $sql = "SELECT * FROM validate WHERE val_user='{$user_id}' AND val_title='{$article_title}'" ;
  55                 if ( $article_timestamp != "" ) $sql .= " AND val_timestamp='{$article_timestamp}'" ;
  56                 $res = wfQuery( $sql, DB_READ );
  57                 while( $s = wfFetchObject( $res ) ) $ret[$s->val_timestamp][$s->val_type] = $s ;
  58                 return $ret ;
  59                 }
  60
  61         function validate_form ( $article_title = "" )
  62                 {
  63                 global $wgOut, $wgLang, $wgUser, $wgArticle ;
  64
  65                 if ( $wgUser->getID() == 0 ) # Anon
  66                         {
  67                         $wgOut->addHTML ( wfMsg ( 'val_no_anon_validation' ) . $this->getPageStatistics ( $article_title ) ) ;
  68                         return ;
  69                         }
  70
  71                 $validationtypes = $wgLang->getValidationTypes() ;
  72                 if ( $article_title == "" )
  73                         {
  74                         $article_title = $_GET['article_title'] ;
  75                         $heading = "<h1>" . $article_title . "</h1>\n" ;
  76                         }
  77                 else $heading = "" ;
  78                 $article_time = "" ;
  79                 if ( isset ( $_GET['timestamp'] ) ) $article_time = $_GET['timestamp'] ;
  80                 else $article_time = "" ;
  81                 $article = Title::newFromText ( $article_title ) ;
  82
  83                 # Now we get all the "votes" for the different versions of this article for this user
  84                 $val = $this->get_prev_data ( $wgUser->getID() , $article_title ) ;
  85
  86                 # No votes for this version, initial data
  87                 if ( !isset ( $val[$article_time] ) )
  88                         {
  89                         if ( $article_time == "" )
  90                                 {
  91                                 $res = wfQuery( "select cur_timestamp FROM cur WHERE cur_title=\"{$article_title}\" AND cur_namespace=0", DB_READ );
  92                                 if ( $s = wfFetchObject( $res ) ) $article_time = $s->cur_timestamp ;
  93                                 }
  94                         $val[$article_time] = array () ;
  95                         }
  96
  97                 krsort ( $val ) ; # Newest versions first
  98
  99                 # User has clicked "Doit" before, so evaluate form
 100                 if ( isset ( $_POST['doit'] ) )
 101                         {
 102                         $oldtime = $_POST['oldtime'] ;
 103                         if ( !isset ( $val["{$oldtime}"] ) ) $val["{$oldtime}"] = array () ;
 104
 105                         # Reading postdata
 106                         $postrad = array () ;
 107                         $poscomment = array () ;
 108                         for ( $idx = 0 ; $idx < count ( $validationtypes) ; $idx++ )
 109                                 {
 110                                 $postrad[$idx] = $_POST["rad{$idx}"] ;
 111                                 $postcomment[$idx] = $_POST["comment{$idx}"] ;
 112                                 }
 113
 114                         # Merge others into this one
 115                         if ( isset ( $_POST['merge_other'] ) && $_POST['merge_other'] == 1 )
 116                                 {
 117                                 foreach ( $val AS $time => $stuff )
 118                                         {
 119                                         if ( $time <> $article_time )
 120                                                 {
 121                                                 for ( $idx = 0 ; $idx < count ( $validationtypes) ; $idx++ )
 122                                                         {
 123                                                         $rad = $postrad[$idx] ;
 124                                                         if ( isset ( $stuff[$idx] ) AND $stuff[$idx]->val_value != -1 AND $rad == -1 )
 125                                                                 {
 126                                                                 $postrad[$idx] = $stuff[$idx]->val_value ;
 127                                                                 $postcomment[$idx] = $stuff[$idx]->val_comment ;
 128                                                                 }
 129                                                         }
 130                                                 }
 131                                         }
 132                                 }
 133
 134                         # Clear all others
 135                         if ( isset ( $_POST['clear_other'] ) && $_POST['clear_other'] == 1 )
 136                                 {
 137                                 $sql = "DELETE FROM validate WHERE val_title='{$article_title}' AND val_timestamp<>'{$oldtime}' AND val_user='" ;
 138                                 $sql .= $wgUser->getID() . "'" ;
 139                                 wfQuery( $sql, DB_WRITE );
 140                                 $val2 = $val["{$oldtime}"] ; # Only version left
 141                                 $val = array () ; # So clear others
 142                                 $val["{$oldtime}"] = $val2 ;
 143                                 }
 144
 145                         # Delete old "votes" for this version
 146                         $sql = "DELETE FROM validate WHERE val_title='{$article_title}' AND val_timestamp='{$oldtime}' AND val_user='" ;
 147                         $sql .= $wgUser->getID() . "'" ;
 148                         wfQuery( $sql, DB_WRITE );
 149
 150                         # Incorporate changes
 151                         for ( $idx = 0 ; $idx < count ( $validationtypes) ; $idx++ ) # Changes
 152                                 {
 153                                 $comment = $postcomment[$idx] ;
 154                                 $comment_sql = str_replace ( "'" , "\'" , $comment ) ;
 155                                 $rad = $postrad[$idx] ;
 156                                 if ( !isset ( $val["{$oldtime}"][$idx] ) ) $val["{$oldtime}"][$idx] = "" ;
 157                                 $val["{$oldtime}"][$idx]->val_value = $rad ;
 158                                 $val["{$oldtime}"][$idx]->val_comment = $comment ;
 159                                 if ( $rad != -1 )
 160                                         {
 161                                         # Store it in the database
 162                                         $sql = "INSERT INTO validate (val_user,val_title,val_timestamp,val_type,val_value,val_comment) " .
 163                                                  "VALUES ( '" . $wgUser->getID() . "','{$article_title}','{$oldtime}','{$idx}','{$rad}','{$comment_sql}')" ;
 164                                         if ( $rad != -1 ) wfQuery( $sql, DB_WRITE );
 165                                         }
 166                                 }
 167                         $wgArticle->showArticle( "Juhuu", wfMsg( 'val_validated' ) );
 168                         return ; # Show article instead of validation page
 169                         }
 170
 171                 # Generating HTML
 172                 $html = "" ;
 173
 174                 $skin = $wgUser->getSkin() ;
 175                 $staturl = $skin->makeSpecialURL ( "validate" , "mode=stat_page&article_title={$article_title}" ) ;
 176                 $listurl = $skin->makeSpecialURL ( "validate" , "mode=list_page" ) ;
 177                 $html .= "<a href=\"{$staturl}\">" . wfMsg('val_stat_link_text') . "</a> \n" ;
 178                 $html .= "<a href=\"{$listurl}\">" . wfMsg('val_article_lists') . "</a><br>\n" ;
 179                 $html .= "<small>" . wfMsg('val_form_note') . "</small><br>\n" ;
 180
 181                 # Generating data tables
 182                 $tabsep = "<td width=0px style='border-left:2px solid black;'></td>" ;
 183                 $topstyle = "style='border-top:2px solid black'" ;
 184                 foreach ( $val AS $time => $stuff )
 185                         {
 186                         $tablestyle = "cellspacing=0 cellpadding=2" ;
 187                         if ( $article_time == $time ) $tablestyle .=" style='border: 2px solid red'" ;
 188                         $html .= "<h2>" . wfMsg( 'val_version_of', gmdate( "F d, Y H:i:s", wfTimestamp2Unix( $time ) ) ) ;
 189                         $this->find_this_version ( $article_title , $time , $table_id , $table_name ) ;
 190                         if ( $table_name == "cur" ) $html .= " (" . wfMsg ( 'val_this_is_current_version' ) . ")" ;
 191                         $html .= "</h2>\n" ;
 192                         $html .= "<form method=post>\n" ;
 193                         $html .= "<input type=hidden name=oldtime value='{$time}'>" ;
 194                         $html .= "<table {$tablestyle}>\n" ;
 195                         $html .= wfMsg( 'val_table_header', $tabsep ) ;
 196                         for ( $idx = 0 ; $idx < count ( $validationtypes) ; $idx++ )
 197                                 {
 198                                 $x = explode ( "|" , $validationtypes[$idx] , 4 ) ;
 199                                 if ( isset ( $stuff[$idx] ) ) $choice = $stuff[$idx]->val_value ;
 200                                 else $choice = -1 ;
 201                                 if ( isset ( $stuff[$idx] ) ) $comment = $stuff[$idx]->val_comment ;
 202                                 else $comment = "" ;
 203                                 $html .= "<tr><th align=left>{$x[0]}</th>{$tabsep}<td align=right>{$x[1]}</td><td align=center>" ;
 204                                 for ( $cnt = 0 ; $cnt < $x[3] ; $cnt++)
 205                                         {
 206                                         $html .= "<input type=radio name='rad{$idx}' value='{$cnt}'" ;
 207                                         if ( $choice == $cnt ) $html .= " checked" ;
 208                                         $html .= "> " ;
 209                                         }
 210                                 $html .= "</td><td>{$x[2]}</td>" ;
 211                                 $html .= "<td><input type=radio name='rad{$idx}' value='-1'" ;
 212                                 if ( $choice == -1 ) $html .= " checked" ;
 213                                 $html .= "> " . wfMsg ( "val_noop" ) . "</td>{$tabsep}" ;
 214                                 $html .= "<td><input type=text name='comment{$idx}' value='{$comment}'></td>" ;
 215                                 $html .= "</tr>\n" ;
 216                                 }
 217                         $html .= "<tr><td {$topstyle} colspan=2>" ;
 218
 219                         # link to version
 220                         $title = Title::newFromDBkey ( $article_title ) ;
 221                         if ( $table_name == "cur" ) $link_version = $title->getLocalURL( "" ) ;
 222                         else $link_version = $title->getLocalURL( "oldid={$table_id}" ) ;
 223                         $link_version = "<a href=\"{$link_version}\">" . wfMsg ( 'val_view_version' ) . "</a>" ;
 224                         $html .= $link_version ;
 225                         $html .= "</td><td {$topstyle} colspan=5>" ;
 226                         $html .= "<input type=checkbox name=merge_other value=1 checked>" ;
 227                         $html .= wfMsg ( 'val_merge_old' );
 228                         $html .= "<br><input type=checkbox name=clear_other value=1 checked>" ;
 229                         $html .= wfMsg ( 'val_clear_old', $skin->makeKnownLinkObj( $article ) );
 230                         $html .= "</td><td {$topstyle} align=right valign=center><input type=submit name=doit value='" . wfMsg("ok") . "'></td>" ;
 231                         $html .= "</tr></table></form>\n" ;
 232                         }
 233
 234                 $html .= "<h2>" . wfMsg ( 'preview' ) . "</h2>" ;
 235                 $wgOut->addHTML ( $html ) ;
 236                 $wgOut->addWikiText ( $wgArticle->getContent( true ) ) ;
 237                 }
 238
 239         function getData ( $user = -1 , $title = "" , $type = -1 )
 240                 {
 241                 $ret = array () ;
 242                 $sql = array () ;
 243                 if ( $user != -1 ) $sql[] = "val_user='{$user}'" ;
 244                 if ( $type != -1 ) $sql[] = "val_type='{$type}'" ;
 245                 if ( $title != "" ) $sql[] = "val_title='{$title}'" ;
 246                 $sql = implode ( " AND " , $sql ) ;
 247                 if ( $sql != "" ) $sql = " WHERE " . $sql ;
 248                 $sql = "SELECT * FROM validate" . $sql ;
 249                 $res = wfQuery( $sql, DB_READ );
 250                 while( $s = wfFetchObject( $res ) ) $ret["{$s->val_title}"]["{$s->val_timestamp}"]["{$s->val_type}"][] = $s ;
 251                 return $ret ;
 252                 }
 253
 254         # Show statistics for the different versions of a single article
 255         function getPageStatistics ( $article_title = "" )
 256                 {
 257                 global $wgLang, $wgUser , $wgOut ;
 258                 $validationtypes = $wgLang->getValidationTypes() ;
 259                 if ( $article_title == "" ) $article_title = $_GET['article_title'] ;
 260                 $d = $this->getData ( -1 , $article_title , -1 ) ;
 261                 if ( count ( $d ) ) $d = array_shift ( $d ) ;
 262                 else $d = array () ;
 263                 krsort ( $d ) ;
 264
 265                 # Getting table data (cur_id, old_id etc.) for each version
 266                 $table_id = array() ;
 267                 $table_name = array() ;
 268                 foreach ( $d AS $version => $data )
 269                         {
 270                         $this->find_this_version ( $article_title , $version , $table_id[$version] , $table_name[$version] ) ;
 271                         }
 272
 273                 # Generating HTML
 274                 $title = Title::newFromDBkey ( $article_title ) ;
 275                 $wgOut->setPageTitle ( wfMsg ( 'val_page_validation_statistics' , $title->getText() ) ) ;
 276 #               $html = "<h1>" . wfMsg ( 'val_page_validation_statistics' , $title->getText() ) . "</h1>\n" ;
 277                 $html = "" ;
 278                 $skin = $wgUser->getSkin() ;
 279                 $listurl = $skin->makeSpecialURL ( "validate" , "mode=list_page" ) ;
 280                 $html .= "<a href=\"{$listurl}\">" . wfMsg('val_article_lists') . "</a><br><br>\n" ;
 281
 282                 $html .= "<table border=1 cellpadding=2 style='font-size:8pt;'>\n" ;
 283                 $html .= "<tr><th>" . wfMsg('val_version') . "</th>" ;
 284                 foreach ( $validationtypes AS $idx => $title )
 285                         {
 286                         $title = explode ( "|" , $title ) ;
 287                         $html .= "<th>{$title[0]}</th>" ;
 288                         }
 289                 $html .= "<th>" . wfMsg('val_total') . "</th>" ;
 290                 $html .= "</tr>\n" ;
 291                 foreach ( $d AS $version => $data )
 292                         {
 293                         # Preamble for this version
 294                         $title = Title::newFromDBkey ( $article_title ) ;
 295                         $version_date = gmdate("F d, Y H:i:s",wfTimestamp2Unix($version)) ;
 296                         $version_validate_link = $title->getLocalURL( "action=validate&timestamp={$version}" ) ;
 297                         $version_validate_link = "<a class=intern href=\"{$version_validate_link}\">" . wfMsg('val_validate_version') . "</a>" ;
 298                         if ( $table_name[$version] == 'cur' ) $version_view_link = $title->getLocalURL( "" ) ;
 299                         else $version_view_link = $title->getLocalURL( "oldid={$table_id[$version]}" ) ;
 300                         $version_view_link = "<a href=\"{$version_view_link}\">" . wfMsg('val_view_version') . "</a>" ;
 301                         $html .= "<tr>" ;
 302                         $html .= "<td align=center valign=top nowrap><b>{$version_date}</b><br>{$version_view_link}<br>{$version_validate_link}</td>" ;
 303
 304                         # Individual data
 305                         $vmax = array() ;
 306                         $vcur = array() ;
 307                         $users = array() ;
 308                         foreach ( $data AS $type => $x2 )
 309                                 {
 310                                 if ( !isset ( $vcur[$type] ) ) $vcur[$type] = 0 ;
 311                                 if ( !isset ( $vmax[$type] ) ) $vmax[$type] = 0 ;
 312                                 if ( !isset ( $users[$type] ) ) $users[$type] = 0 ;
 313                                 foreach ( $x2 AS $user => $x )
 314                                         {
 315                                         $vcur[$type] += $x->val_value ;
 316                                         $temp = explode ( "|" , $validationtypes[$type]) ;
 317                                         $vmax[$type] += $temp[3] - 1 ;
 318                                         $users[$type] += 1 ;
 319                                         }
 320                                 }
 321
 322                         $total_count = 0 ;
 323                         $total_percent = 0 ;
 324                         foreach ( $validationtypes AS $idx => $title )
 325                                 {
 326                                 if ( isset ( $vcur[$idx] ) )
 327                                         {
 328                                         $average = 100 * $vcur[$idx] / $vmax[$idx] ;
 329                                         $total_count += 1 ;
 330                                         $total_percent += $average ;
 331                                         if ( $users[$idx] > 1 ) $msgid = "val_percent" ;
 332                                         else $msgid = "val_percent_single" ;
 333                                         $html .= "<td align=center valign=top>" .
 334                                                         wfMsg ( $msgid, number_format ( $average , 2 ) ,
 335                                                                         $vcur[$idx] , $vmax[$idx] , $users[$idx] ) ;
 336                                         }
 337                                 else
 338                                         {
 339                                         $html .= "<td align=center valign=center>" ;
 340                                         $html .= "(" . wfMsg ( "val_noop" ) . ")" ;
 341                                         }
 342                                 $html .= "</td>" ;
 343                                 }
 344
 345                         if ( $total_count > 0 )
 346                                 {
 347                                 $total = $total_percent / $total_count ;
 348                                 $total = number_format ( $total , 2 ) . " %" ;
 349                                 }
 350                         else $total = "" ;
 351                         $html .= "<td align=center valign=top nowrap><b>{$total}</b></td>" ;
 352
 353                         $html .= "</tr>" ;
 354                         }
 355                 $html .= "</table>\n" ;
 356                 return $html ;
 357                 }
 358
 359         function countUserValidations ( $userid )
 360                 {
 361                 $sql = "SELECT count(DISTINCT val_title) AS num FROM validate WHERE val_user={$userid}" ;
 362                 $res = wfQuery( $sql, DB_READ );
 363                 if ( $s = wfFetchObject( $res ) ) $num = $s->num ;
 364                 else $num = 0 ;
 365                 return $num ;
 366                 }
 367
 368         function getArticleList ()
 369                 {
 370                 global $wgLang , $wgOut ;
 371                 $validationtypes = $wgLang->getValidationTypes() ;
 372                 $wgOut->setPageTitle ( wfMsg ( 'val_article_lists' ) ) ;
 373                 $html = "" ;
 374
 375                 # Choices
 376                 $choice = array () ;
 377                 $maxw = 0 ;
 378                 foreach ( $validationtypes AS $idx => $data )
 379                         {
 380                         $x = explode ( "|" , $data , 4 ) ;
 381                         if ( $x[3] > $maxw ) $maxw = $x[3] ;
 382                         }
 383                 foreach ( $validationtypes AS $idx => $data )
 384                         {
 385                         $choice[$idx] = array () ;
 386                         for ( $a = 0 ; $a < $maxw ; $a++ )
 387                                 {
 388                                 $var = "cb_{$idx}_{$a}" ;
 389                                 if ( isset ( $_POST[$var] ) ) $choice[$idx][$a] = $_POST[$var] ; # Selected
 390                                 else if ( !isset ( $_POST["doit"] ) ) $choice[$idx][$a] = 1 ; # First time
 391                                 else $choice[$idx][$a] = 0 ; # De-selected
 392                                 }
 393                         }
 394
 395
 396                 # The form
 397                 $html .= "<form method=post>\n" ;
 398                 $html .= "<table border=1 cellspacing=0 cellpadding=2>" ;
 399                 foreach ( $validationtypes AS $idx => $data )
 400                         {
 401                         $x = explode ( "|" , $data , 4 ) ;
 402
 403                         $html .= "<tr>" ;
 404                         $html .= "<th nowrap>{$x[0]}</th>" ;
 405                         $html .= "<td align=right nowrap>{$x[1]}</td>" ;
 406
 407                         for ( $a = 0 ; $a < $maxw ; $a++ )
 408                                 {
 409                                 if ( $a < $x[3] )
 410                                         {
 411                                         $td = "<input type=checkbox name='cb_{$idx}_{$a}' value=1" ;
 412                                         if ( $choice[$idx][$a] == 1 ) $td .= " checked" ;
 413                                         $td .= ">" ;
 414                                         }
 415                                 else $td = '' ;
 416                                 $html .= "<td>{$td}</td>" ;
 417                                 }
 418
 419                         $html .= "<td nowrap>{$x[2]}</td>" ;
 420                         $html .= "</tr>\n" ;
 421                         }
 422                 $html .= "<tr><td colspan=" . ( $maxw + 2 ) . "></td>\n" ;
 423                 $html .= "<td align=right valign=center><input type=submit name=doit value='" . wfMsg ( 'ok' ) . "'></td></tr>" ;
 424                 $html .= "</table>\n" ;
 425                 $html .= "</form>\n" ;
 426
 427                 # The query
 428                 $articles = array() ;
 429                 $sql = "SELECT DISTINCT val_title,val_timestamp,val_type,avg(val_value) AS avg FROM validate GROUP BY val_title,val_timestamp,val_type" ;
 430                 $res = wfQuery( $sql, DB_READ );
 431                 while( $s = wfFetchObject( $res ) ) $articles[$s->val_title][$s->val_timestamp][$s->val_type] = $s ;
 432
 433                 # The list
 434                 $html .= "<ul>\n" ;
 435                 foreach ( $articles AS $dbkey => $timedata )
 436                         {
 437                         $title = Title::newFromDBkey ( $dbkey ) ;
 438                         $out = array () ;
 439                         krsort ( $timedata ) ;
 440
 441                         foreach ( $timedata AS $timestamp => $typedata )
 442                                 {
 443                                 $showit = true ;
 444                                 foreach ( $typedata AS $type => $data )
 445                                         {
 446                                         $avg = intval ( $data->avg + 0.5 ) ;
 447                                         if ( $choice[$type][$avg] == 0 ) $showit = false ;
 448                                         }
 449                                 if ( $showit )
 450                                         {
 451                                         $out[] = "<li>" . $this->getVersionLink ( $title , $timestamp ) . "</li>\n" ;
 452                                         }
 453                                 }
 454
 455                         if ( count ( $out ) > 0 )
 456                                 {
 457                                 $html .= "<li>\n" ;
 458                                 $html .= $title->getText() . "\n" ;
 459                                 $html .= "<ul>\n" ;
 460                                 $html .= implode ( "\n" , $out ) ;
 461                                 $html .= "</ul>\n</li>\n" ;
 462                                 }
 463                         }
 464                 $html .= "</ul>\n" ;
 465                 return $html ;
 466                 }
 467
 468         function getVersionLink ( &$title , $timestamp )
 469                 {
 470                 $dbkey = $title->getDBkey () ;
 471                 $this->find_this_version ( $dbkey , $timestamp , $table_id , $table_name ) ;
 472                 if ( $table_name == 'cur' ) $link = $title->getLocalURL( "" ) ;
 473                 else $link = $title->getLocalURL( "action=validate&timestamp={$table_id}" ) ;
 474                 $linktitle = wfMsg( 'val_version_of', gmdate( "F d, Y H:i:s", wfTimestamp2Unix( $timestamp ) ) ) ;
 475                 $link = "<a href=\"{$link}\">" . $linktitle . "</a>" ;
 476                 if ( $table_name == 'cur' ) $link .= " (" . wfMsg ( 'val_this_is_current_version' ) . ")" ;
 477
 478                 $vlink = wfMsg ( 'val_tab' ) ;
 479                 $vlink = "[<a href=\"" . $title->getLocalURL( "action=validate&timestamp={$timestamp}" ) . "\">{$vlink}</a>] " . $link ;
 480                 return $vlink ;
 481                 }
 482
 483         }
 484
 485 function wfSpecialValidate( $page = "" )
 486         {
 487         global $wgOut ;
 488         if ( isset ( $_GET['mode'] ) ) $mode = $_GET['mode'] ;
 489         else $mode = "form" ;
 490         $v = new Validation ;
 491         $html = "" ;
 492 /*      if ( $mode == "form" )
 493                 {
 494                 $html = $v->validate_form () ;
 495                 }
 496         else */
 497         if ( $mode == "stat_page" )
 498                 {
 499                 $html = $v->getPageStatistics () ;
 500                 }
 501         else if ( $mode == "list_page" )
 502                 {
 503                 $html = $v->getArticleList () ;
 504                 }
 505
 506         $wgOut->addHTML( $html ) ;
 507         }
 508
 509 ?>