includes/specials/SpecialTrackingCategories.php

   1 <?php
   2 /**
   3  * Implements Special:TrackingCategories
   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  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * A special page that displays list of tracking categories
  26  * Tracking categories allow pages with certain characteristics to be tracked.
  27  * It works by adding any such page to a category automatically.
  28  * Category is specified by the tracking category's system message.
  29  *
  30  * @ingroup SpecialPage
  31  * @since 1.23
  32  */
  33
  34 class SpecialTrackingCategories extends SpecialPage {
  35         function __construct() {
  36                 parent::__construct( 'TrackingCategories' );
  37         }
  38
  39         /**
  40          * Tracking categories that exist in core
  41          *
  42          * @var array
  43          */
  44         private static $coreTrackingCategories = array(
  45                 'index-category',
  46                 'noindex-category',
  47                 'duplicate-args-category',
  48                 'expensive-parserfunction-category',
  49                 'post-expand-template-argument-category',
  50                 'post-expand-template-inclusion-category',
  51                 'hidden-category-category',
  52                 'broken-file-category',
  53                 'node-count-exceeded-category',
  54                 'expansion-depth-exceeded-category',
  55         );
  56
  57         function execute( $par ) {
  58                 $this->setHeaders();
  59                 $this->outputHeader();
  60                 $this->getOutput()->allowClickjacking();
  61                 $this->getOutput()->addHTML(
  62                         Html::openElement( 'table', array( 'class' => 'mw-datatable',
  63                                 'id' => 'mw-trackingcategories-table' ) ) . "\n" .
  64                         "<thead><tr>
  65                         <th>" .
  66                                 $this->msg( 'trackingcategories-msg' )->escaped() . "
  67                         </th>
  68                         <th>" .
  69                                 $this->msg( 'trackingcategories-name' )->escaped() .
  70                         "</th>
  71                         <th>" .
  72                                 $this->msg( 'trackingcategories-desc' )->escaped() . "
  73                         </th>
  74                         </tr></thead>"
  75                 );
  76
  77                 $trackingCategories = $this->prepareTrackingCategoriesData();
  78
  79                 $batch = new LinkBatch();
  80                 foreach ( $trackingCategories as $catMsg => $data ) {
  81                         $batch->addObj( $data['msg'] );
  82                         foreach ( $data['cats'] as $catTitle ) {
  83                                 $batch->addObj( $catTitle );
  84                         }
  85                 }
  86                 $batch->execute();
  87
  88                 foreach ( $trackingCategories as $catMsg => $data ) {
  89                         $allMsgs = array();
  90                         $catDesc = $catMsg . '-desc';
  91
  92                         $catMsgTitleText = Linker::link(
  93                                 $data['msg'],
  94                                 htmlspecialchars( $catMsg )
  95                         );
  96
  97                         foreach ( $data['cats'] as $catTitle ) {
  98                                 $catTitleText = Linker::link(
  99                                         $catTitle,
 100                                         htmlspecialchars( $catTitle->getText() )
 101                                 );
 102                                 $allMsgs[] = $catTitleText;
 103                         }
 104
 105                         # Extra message, when no category was found
 106                         if ( !count( $allMsgs ) ) {
 107                                 $allMsgs[] = $this->msg( 'trackingcategories-disabled' )->parse();
 108                         }
 109
 110                         /*
 111                          * Show category description if it exists as a system message
 112                          * as category-name-desc
 113                          */
 114                         $descMsg = $this->msg( $catDesc );
 115                         if ( $descMsg->isBlank() ) {
 116                                 $descMsg = $this->msg( 'trackingcategories-nodesc' );
 117                         }
 118
 119                         $this->getOutput()->addHTML(
 120                                 Html::openElement( 'tr' ) .
 121                                 Html::openElement( 'td', array( 'class' => 'mw-trackingcategories-name' ) ) .
 122                                         $this->getLanguage()->commaList( array_unique( $allMsgs ) ) .
 123                                 Html::closeElement( 'td' ) .
 124                                 Html::openElement( 'td', array( 'class' => 'mw-trackingcategories-msg' ) ) .
 125                                         $catMsgTitleText .
 126                                 Html::closeElement( 'td' ) .
 127                                 Html::openElement( 'td', array( 'class' => 'mw-trackingcategories-desc' ) ) .
 128                                         $descMsg->parse() .
 129                                 Html::closeElement( 'td' ) .
 130                                 Html::closeElement( 'tr' )
 131                         );
 132                 }
 133                 $this->getOutput()->addHTML( Html::closeElement( 'table' ) );
 134         }
 135
 136         /**
 137          * Read the global and extract title objects from the corresponding messages
 138          * @return array Array( 'msg' => Title, 'cats' => Title[] )
 139          */
 140         private function prepareTrackingCategoriesData() {
 141                 $categories = array_merge(
 142                         self::$coreTrackingCategories,
 143                         ExtensionRegistry::getInstance()->getAttribute( 'TrackingCategories' ),
 144                         $this->getConfig()->get( 'TrackingCategories' ) // deprecated
 145                 );
 146                 $trackingCategories = array();
 147                 foreach ( $categories as $catMsg ) {
 148                         /*
 149                          * Check if the tracking category varies by namespace
 150                          * Otherwise only pages in the current namespace will be displayed
 151                          * If it does vary, show pages considering all namespaces
 152                          */
 153                         $msgObj = $this->msg( $catMsg )->inContentLanguage();
 154                         $allCats = array();
 155                         $catMsgTitle = Title::makeTitleSafe( NS_MEDIAWIKI, $catMsg );
 156                         if ( !$catMsgTitle ) {
 157                                 continue;
 158                         }
 159
 160                         // Match things like {{NAMESPACE}} and {{NAMESPACENUMBER}}.
 161                         // False positives are ok, this is just an efficiency shortcut
 162                         if ( strpos( $msgObj->plain(), '{{' ) !== false ) {
 163                                 $ns = MWNamespace::getValidNamespaces();
 164                                 foreach ( $ns as $namesp ) {
 165                                         $tempTitle = Title::makeTitleSafe( $namesp, $catMsg );
 166                                         if ( !$tempTitle ) {
 167                                                 continue;
 168                                         }
 169                                         $catName = $msgObj->title( $tempTitle )->text();
 170                                         # Allow tracking categories to be disabled by setting them to "-"
 171                                         if ( $catName !== '-' ) {
 172                                                 $catTitle = Title::makeTitleSafe( NS_CATEGORY, $catName );
 173                                                 if ( $catTitle ) {
 174                                                         $allCats[] = $catTitle;
 175                                                 }
 176                                         }
 177                                 }
 178                         } else {
 179                                 $catName = $msgObj->text();
 180                                 # Allow tracking categories to be disabled by setting them to "-"
 181                                 if ( $catName !== '-' ) {
 182                                         $catTitle = Title::makeTitleSafe( NS_CATEGORY, $catName );
 183                                         if ( $catTitle ) {
 184                                                 $allCats[] = $catTitle;
 185                                         }
 186                                 }
 187                         }
 188                         $trackingCategories[$catMsg] = array(
 189                                 'cats' => $allCats,
 190                                 'msg' => $catMsgTitle,
 191                         );
 192                 }
 193
 194                 return $trackingCategories;
 195         }
 196
 197         protected function getGroupName() {
 198                 return 'pages';
 199         }
 200 }