includes/specials/SpecialStatistics.php

   1 <?php
   2 /**
   3  * Implements Special:Statistics
   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  * Special page lists various statistics, including the contents of
  26  * `site_stats`, plus page view details if enabled
  27  *
  28  * @ingroup SpecialPage
  29  */
  30 class SpecialStatistics extends SpecialPage {
  31
  32         private $views, $edits, $good, $images, $total, $users,
  33                         $activeUsers = 0;
  34
  35         public function __construct() {
  36                 parent::__construct( 'Statistics' );
  37         }
  38
  39         public function execute( $par ) {
  40                 global $wgMemc, $wgDisableCounters, $wgMiserMode;
  41
  42                 $this->setHeaders();
  43                 $this->getOutput()->addModuleStyles( 'mediawiki.special' );
  44
  45                 $this->views = SiteStats::views();
  46                 $this->edits = SiteStats::edits();
  47                 $this->good = SiteStats::articles();
  48                 $this->images = SiteStats::images();
  49                 $this->total = SiteStats::pages();
  50                 $this->users = SiteStats::users();
  51                 $this->activeUsers = SiteStats::activeUsers();
  52                 $this->hook = '';
  53
  54                 # Staticic - views
  55                 $viewsStats = '';
  56                 if( !$wgDisableCounters ) {
  57                         $viewsStats = $this->getViewsStats();
  58                 }
  59
  60                 # Set active user count
  61                 if( !$wgMiserMode ) {
  62                         $key = wfMemcKey( 'sitestats', 'activeusers-updated' );
  63                         // Re-calculate the count if the last tally is old...
  64                         if( !$wgMemc->get($key) ) {
  65                                 $dbw = wfGetDB( DB_MASTER );
  66                                 SiteStatsUpdate::cacheUpdate( $dbw );
  67                                 $wgMemc->set( $key, '1', 24*3600 ); // don't update for 1 day
  68                         }
  69                 }
  70
  71                 $text = Xml::openElement( 'table', array( 'class' => 'wikitable mw-statistics-table' ) );
  72
  73                 # Statistic - pages
  74                 $text .= $this->getPageStats();
  75
  76                 # Statistic - edits
  77                 $text .= $this->getEditStats();
  78
  79                 # Statistic - users
  80                 $text .= $this->getUserStats();
  81
  82                 # Statistic - usergroups
  83                 $text .= $this->getGroupStats();
  84                 $text .= $viewsStats;
  85
  86                 # Statistic - popular pages
  87                 if( !$wgDisableCounters && !$wgMiserMode ) {
  88                         $text .= $this->getMostViewedPages();
  89                 }
  90
  91                 # Statistic - other
  92                 $extraStats = array();
  93                 if( wfRunHooks( 'SpecialStatsAddExtra', array( &$extraStats ) ) ) {
  94                         $text .= $this->getOtherStats( $extraStats );
  95                 }
  96
  97                 $text .= Xml::closeElement( 'table' );
  98
  99                 # Customizable footer
 100                 $footer = wfMessage( 'statistics-footer' );
 101                 if ( !$footer->isBlank() ) {
 102                         $text .= "\n" . $footer->parse();
 103                 }
 104
 105                 $this->getOutput()->addHTML( $text );
 106         }
 107
 108         /**
 109          * Format a row
 110          * @param $text  String: description of the row
 111          * @param $number  Float: a statistical number
 112          * @param $trExtraParams  Array: params to table row, see Html::elememt
 113          * @param $descMsg  String: message key
 114          * @param $descMsgParam  Array: message params
 115          * @return string table row in HTML format
 116          */
 117         private function formatRow( $text, $number, $trExtraParams = array(), $descMsg = '', $descMsgParam = '' ) {
 118                 if( $descMsg ) {
 119                         $msg = wfMessage( $descMsg, $descMsgParam );
 120                         if ( $msg->exists() ) {
 121                                 $descriptionText = $msg->parse();
 122                                 $text .= "<br />" . Xml::element( 'small', array( 'class' => 'mw-statistic-desc'),
 123                                         " ($descriptionText)" );
 124                         }
 125                 }
 126                 return Html::rawElement( 'tr', $trExtraParams,
 127                         Html::rawElement( 'td', array(), $text ) .
 128                         Html::rawElement( 'td', array( 'class' => 'mw-statistics-numbers' ), $number )
 129                 );
 130         }
 131
 132         /**
 133          * Each of these methods is pretty self-explanatory, get a particular
 134          * row for the table of statistics
 135          * @return string
 136          */
 137         private function getPageStats() {
 138                 return Xml::openElement( 'tr' ) .
 139                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-pages', array( 'parseinline' ) ) ) .
 140                         Xml::closeElement( 'tr' ) .
 141                                 $this->formatRow( wfMsgExt( 'statistics-articles', array( 'parseinline' ) ),
 142                                                 $this->getLang()->formatNum( $this->good ),
 143                                                 array( 'class' => 'mw-statistics-articles' ) ) .
 144                                 $this->formatRow( wfMsgExt( 'statistics-pages', array( 'parseinline' ) ),
 145                                                 $this->getLang()->formatNum( $this->total ),
 146                                                 array( 'class' => 'mw-statistics-pages' ),
 147                                                 'statistics-pages-desc' ) .
 148                                 $this->formatRow( wfMsgExt( 'statistics-files', array( 'parseinline' ) ),
 149                                                 $this->getLang()->formatNum( $this->images ),
 150                                                 array( 'class' => 'mw-statistics-files' ) );
 151         }
 152         private function getEditStats() {
 153                 return Xml::openElement( 'tr' ) .
 154                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-edits', array( 'parseinline' ) ) ) .
 155                         Xml::closeElement( 'tr' ) .
 156                                 $this->formatRow( wfMsgExt( 'statistics-edits', array( 'parseinline' ) ),
 157                                                 $this->getLang()->formatNum( $this->edits ),
 158                                                 array( 'class' => 'mw-statistics-edits' ) ) .
 159                                 $this->formatRow( wfMsgExt( 'statistics-edits-average', array( 'parseinline' ) ),
 160                                                 $this->getLang()->formatNum( sprintf( '%.2f', $this->total ? $this->edits / $this->total : 0 ) ),
 161                                                 array( 'class' => 'mw-statistics-edits-average' ) );
 162         }
 163
 164         private function getUserStats() {
 165                 global $wgActiveUserDays;
 166                 return Xml::openElement( 'tr' ) .
 167                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-users', array( 'parseinline' ) ) ) .
 168                         Xml::closeElement( 'tr' ) .
 169                                 $this->formatRow( wfMsgExt( 'statistics-users', array( 'parseinline' ) ),
 170                                                 $this->getLang()->formatNum( $this->users ),
 171                                                 array( 'class' => 'mw-statistics-users' ) ) .
 172                                 $this->formatRow( wfMsgExt( 'statistics-users-active', array( 'parseinline' ) ) . ' ' .
 173                                                         Linker::linkKnown(
 174                                                                 SpecialPage::getTitleFor( 'Activeusers' ),
 175                                                                 wfMsgHtml( 'listgrouprights-members' )
 176                                                         ),
 177                                                 $this->getLang()->formatNum( $this->activeUsers ),
 178                                                 array( 'class' => 'mw-statistics-users-active' ),
 179                                                 'statistics-users-active-desc',
 180                                                 $this->getLang()->formatNum( $wgActiveUserDays ) );
 181         }
 182
 183         private function getGroupStats() {
 184                 global $wgGroupPermissions, $wgImplicitGroups;
 185                 $text = '';
 186                 foreach( $wgGroupPermissions as $group => $permissions ) {
 187                         # Skip generic * and implicit groups
 188                         if ( in_array( $group, $wgImplicitGroups ) || $group == '*' ) {
 189                                 continue;
 190                         }
 191                         $groupname = htmlspecialchars( $group );
 192                         $msg = wfMessage( 'group-' . $groupname );
 193                         if ( $msg->isBlank() ) {
 194                                 $groupnameLocalized = $groupname;
 195                         } else {
 196                                 $groupnameLocalized = $msg->text();
 197                         }
 198                         $msg = wfMessage( 'grouppage-' . $groupname )->inContentLanguage();
 199                         if ( $msg->isBlank() ) {
 200                                 $grouppageLocalized = MWNamespace::getCanonicalName( NS_PROJECT ) . ':' . $groupname;
 201                         } else {
 202                                 $grouppageLocalized = $msg->text();
 203                         }
 204                         $linkTarget = Title::newFromText( $grouppageLocalized );
 205                         $grouppage = Linker::link(
 206                                 $linkTarget,
 207                                 htmlspecialchars( $groupnameLocalized )
 208                         );
 209                         $grouplink = Linker::linkKnown(
 210                                 SpecialPage::getTitleFor( 'Listusers' ),
 211                                 wfMsgHtml( 'listgrouprights-members' ),
 212                                 array(),
 213                                 array( 'group' => $group )
 214                         );
 215                         # Add a class when a usergroup contains no members to allow hiding these rows
 216                         $classZero = '';
 217                         $countUsers = SiteStats::numberingroup( $groupname );
 218                         if( $countUsers == 0 ) {
 219                                 $classZero = ' statistics-group-zero';
 220                         }
 221                         $text .= $this->formatRow( $grouppage . ' ' . $grouplink,
 222                                 $this->getLang()->formatNum( $countUsers ),
 223                                 array( 'class' => 'statistics-group-' . Sanitizer::escapeClass( $group ) . $classZero )  );
 224                 }
 225                 return $text;
 226         }
 227
 228         private function getViewsStats() {
 229                 return Xml::openElement( 'tr' ) .
 230                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-views', array( 'parseinline' ) ) ) .
 231                         Xml::closeElement( 'tr' ) .
 232                                 $this->formatRow( wfMsgExt( 'statistics-views-total', array( 'parseinline' ) ),
 233                                         $this->getLang()->formatNum( $this->views ),
 234                                                 array ( 'class' => 'mw-statistics-views-total' ), 'statistics-views-total-desc' ) .
 235                                 $this->formatRow( wfMsgExt( 'statistics-views-peredit', array( 'parseinline' ) ),
 236                                         $this->getLang()->formatNum( sprintf( '%.2f', $this->edits ?
 237                                                 $this->views / $this->edits : 0 ) ),
 238                                                 array ( 'class' => 'mw-statistics-views-peredit' ) );
 239         }
 240
 241         private function getMostViewedPages() {
 242                 $text = '';
 243                 $dbr = wfGetDB( DB_SLAVE );
 244                 $res = $dbr->select(
 245                                 'page',
 246                                 array(
 247                                         'page_namespace',
 248                                         'page_title',
 249                                         'page_counter',
 250                                 ),
 251                                 array(
 252                                         'page_is_redirect' => 0,
 253                                         'page_counter > 0',
 254                                 ),
 255                                 __METHOD__,
 256                                 array(
 257                                         'ORDER BY' => 'page_counter DESC',
 258                                         'LIMIT' => 10,
 259                                 )
 260                         );
 261                         if( $res->numRows() > 0 ) {
 262                                 $text .= Xml::openElement( 'tr' );
 263                                 $text .= Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-mostpopular', array( 'parseinline' ) ) );
 264                                 $text .= Xml::closeElement( 'tr' );
 265                                 foreach ( $res as $row ) {
 266                                         $title = Title::makeTitleSafe( $row->page_namespace, $row->page_title );
 267                                         if( $title instanceof Title ) {
 268                                                 $text .= $this->formatRow( Linker::link( $title ),
 269                                                                 $this->getLang()->formatNum( $row->page_counter ) );
 270
 271                                         }
 272                                 }
 273                                 $res->free();
 274                         }
 275                 return $text;
 276         }
 277
 278         private function getOtherStats( $stats ) {
 279                 if ( !count( $stats ) )
 280                         return '';
 281
 282                 $return = Xml::openElement( 'tr' ) .
 283                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-hooks', array( 'parseinline' ) ) ) .
 284                         Xml::closeElement( 'tr' );
 285
 286                 foreach( $stats as $name => $number ) {
 287                         $name = htmlspecialchars( $name );
 288                         $number = htmlspecialchars( $number );
 289
 290                         $return .= $this->formatRow( $name, $this->getLang()->formatNum( $number ), array( 'class' => 'mw-statistics-hook' ) );
 291                 }
 292
 293                 return $return;
 294         }
 295 }