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, $admins = 0;
  34
  35         public function __construct() {
  36                 parent::__construct( 'Statistics' );
  37         }
  38
  39         public function execute( $par ) {
  40                 global $wgOut, $wgMemc;
  41                 global $wgDisableCounters, $wgMiserMode;
  42
  43                 $this->setHeaders();
  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->admins = SiteStats::numberingroup('sysop');
  53                 $this->hook = '';
  54
  55                 # Staticic - views
  56                 $viewsStats = '';
  57                 if( !$wgDisableCounters ) {
  58                         $viewsStats = $this->getViewsStats();
  59                 }
  60
  61                 # Set active user count
  62                 if( !$wgMiserMode ) {
  63                         $key = wfMemcKey( 'sitestats', 'activeusers-updated' );
  64                         // Re-calculate the count if the last tally is old...
  65                         if( !$wgMemc->get($key) ) {
  66                                 $dbw = wfGetDB( DB_MASTER );
  67                                 SiteStatsUpdate::cacheUpdate( $dbw );
  68                                 $wgMemc->set( $key, '1', 24*3600 ); // don't update for 1 day
  69                         }
  70                 }
  71
  72                 $text = Xml::openElement( 'table', array( 'class' => 'wikitable mw-statistics-table' ) );
  73
  74                 # Statistic - pages
  75                 $text .= $this->getPageStats();
  76
  77                 # Statistic - edits
  78                 $text .= $this->getEditStats();
  79
  80                 # Statistic - users
  81                 $text .= $this->getUserStats();
  82
  83                 # Statistic - usergroups
  84                 $text .= $this->getGroupStats();
  85                 $text .= $viewsStats;
  86
  87                 # Statistic - popular pages
  88                 if( !$wgDisableCounters && !$wgMiserMode ) {
  89                         $text .= $this->getMostViewedPages();
  90                 }
  91
  92                 # Statistic - other
  93                 $extraStats = array();
  94                 if( wfRunHooks( 'SpecialStatsAddExtra', array( &$extraStats ) ) ) {
  95                         $text .= $this->getOtherStats( $extraStats );
  96                 }
  97
  98                 $text .= Xml::closeElement( 'table' );
  99
 100                 # Customizable footer
 101                 $footer = wfMsgExt( 'statistics-footer', array('parseinline') );
 102                 if( !wfEmptyMsg( 'statistics-footer', $footer ) && $footer != '' ) {
 103                         $text .= "\n" . $footer;
 104                 }
 105
 106                 $wgOut->addHTML( $text );
 107         }
 108
 109         /**
 110          * Format a row
 111          * @param $text  String: description of the row
 112          * @param $number  Float: a statistical number
 113          * @param $trExtraParams  Array: params to table row, see Html::elememt
 114          * @param $descMsg  String: message key
 115          * @param $descMsgParam  Array: message params
 116          * @return string table row in HTML format
 117          */
 118         private function formatRow( $text, $number, $trExtraParams = array(), $descMsg = '', $descMsgParam = '' ) {
 119                 if( $descMsg ) {
 120                         $descriptionText = wfMsgExt( $descMsg, array( 'parseinline' ), $descMsgParam );
 121                         if ( !wfEmptyMsg( $descMsg, $descriptionText ) ) {
 122                                 $descriptionText = " ($descriptionText)";
 123                                 $text .= "<br />" . Xml::element( 'small', array( 'class' => 'mw-statistic-desc'),
 124                                         $descriptionText );
 125                         }
 126                 }
 127                 return
 128                 Html::rawElement( 'tr', $trExtraParams,
 129                         Html::rawElement( 'td', array(), $text ) .
 130                         Html::rawElement( 'td', array( 'class' => 'mw-statistics-numbers' ), $number )
 131                 );
 132         }
 133
 134         /**
 135          * Each of these methods is pretty self-explanatory, get a particular
 136          * row for the table of statistics
 137          * @return string
 138          */
 139         private function getPageStats() {
 140                 global $wgLang;
 141                 return Xml::openElement( 'tr' ) .
 142                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-pages', array( 'parseinline' ) ) ) .
 143                         Xml::closeElement( 'tr' ) .
 144                                 $this->formatRow( wfMsgExt( 'statistics-articles', array( 'parseinline' ) ),
 145                                                 $wgLang->formatNum( $this->good ),
 146                                                 array( 'class' => 'mw-statistics-articles' ) ) .
 147                                 $this->formatRow( wfMsgExt( 'statistics-pages', array( 'parseinline' ) ),
 148                                                 $wgLang->formatNum( $this->total ),
 149                                                 array( 'class' => 'mw-statistics-pages' ),
 150                                                 'statistics-pages-desc' ) .
 151                                 $this->formatRow( wfMsgExt( 'statistics-files', array( 'parseinline' ) ),
 152                                                 $wgLang->formatNum( $this->images ),
 153                                                 array( 'class' => 'mw-statistics-files' ) );
 154         }
 155         private function getEditStats() {
 156                 global $wgLang;
 157                 return Xml::openElement( 'tr' ) .
 158                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-edits', array( 'parseinline' ) ) ) .
 159                         Xml::closeElement( 'tr' ) .
 160                                 $this->formatRow( wfMsgExt( 'statistics-edits', array( 'parseinline' ) ),
 161                                                 $wgLang->formatNum( $this->edits ),
 162                                                 array( 'class' => 'mw-statistics-edits' ) ) .
 163                                 $this->formatRow( wfMsgExt( 'statistics-edits-average', array( 'parseinline' ) ),
 164                                                 $wgLang->formatNum( sprintf( '%.2f', $this->total ? $this->edits / $this->total : 0 ) ),
 165                                                 array( 'class' => 'mw-statistics-edits-average' ) );
 166         }
 167
 168         private function getUserStats() {
 169                 global $wgLang, $wgUser, $wgActiveUserDays;
 170                 $sk = $wgUser->getSkin();
 171                 return Xml::openElement( 'tr' ) .
 172                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-users', array( 'parseinline' ) ) ) .
 173                         Xml::closeElement( 'tr' ) .
 174                                 $this->formatRow( wfMsgExt( 'statistics-users', array( 'parseinline' ) ),
 175                                                 $wgLang->formatNum( $this->users ),
 176                                                 array( 'class' => 'mw-statistics-users' ) ) .
 177                                 $this->formatRow( wfMsgExt( 'statistics-users-active', array( 'parseinline' ) ) . ' ' .
 178                                                         $sk->link(
 179                                                                 SpecialPage::getTitleFor( 'Activeusers' ),
 180                                                                 wfMsgHtml( 'listgrouprights-members' ),
 181                                                                 array(),
 182                                                                 array(),
 183                                                                 'known'
 184                                                         ),
 185                                                 $wgLang->formatNum( $this->activeUsers ),
 186                                                 array( 'class' => 'mw-statistics-users-active' ),
 187                                                 'statistics-users-active-desc',
 188                                                 $wgLang->formatNum( $wgActiveUserDays ) );
 189         }
 190
 191         private function getGroupStats() {
 192                 global $wgGroupPermissions, $wgImplicitGroups, $wgLang, $wgUser;
 193                 $sk = $wgUser->getSkin();
 194                 $text = '';
 195                 foreach( $wgGroupPermissions as $group => $permissions ) {
 196                         # Skip generic * and implicit groups
 197                         if ( in_array( $group, $wgImplicitGroups ) || $group == '*' ) {
 198                                 continue;
 199                         }
 200                         $groupname = htmlspecialchars( $group );
 201                         $msg = wfMsg( 'group-' . $groupname );
 202                         if ( wfEmptyMsg( 'group-' . $groupname, $msg ) || $msg == '' ) {
 203                                 $groupnameLocalized = $groupname;
 204                         } else {
 205                                 $groupnameLocalized = $msg;
 206                         }
 207                         $msg = wfMsgForContent( 'grouppage-' . $groupname );
 208                         if ( wfEmptyMsg( 'grouppage-' . $groupname, $msg ) || $msg == '' ) {
 209                                 $grouppageLocalized = MWNamespace::getCanonicalName( NS_PROJECT ) . ':' . $groupname;
 210                         } else {
 211                                 $grouppageLocalized = $msg;
 212                         }
 213                         $linkTarget = Title::newFromText( $grouppageLocalized );
 214                         $grouppage = $sk->link(
 215                                 $linkTarget,
 216                                 htmlspecialchars( $groupnameLocalized )
 217                         );
 218                         $grouplink = $sk->link(
 219                                 SpecialPage::getTitleFor( 'Listusers' ),
 220                                 wfMsgHtml( 'listgrouprights-members' ),
 221                                 array(),
 222                                 array( 'group' => $group ),
 223                                 'known'
 224                         );
 225                         # Add a class when a usergroup contains no members to allow hiding these rows
 226                         $classZero = '';
 227                         $countUsers = SiteStats::numberingroup( $groupname );
 228                         if( $countUsers == 0 ) {
 229                                 $classZero = ' statistics-group-zero';
 230                         }
 231                         $text .= $this->formatRow( $grouppage . ' ' . $grouplink,
 232                                 $wgLang->formatNum( $countUsers ),
 233                                 array( 'class' => 'statistics-group-' . Sanitizer::escapeClass( $group ) . $classZero )  );
 234                 }
 235                 return $text;
 236         }
 237
 238         private function getViewsStats() {
 239                 global $wgLang;
 240                 return Xml::openElement( 'tr' ) .
 241                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-views', array( 'parseinline' ) ) ) .
 242                         Xml::closeElement( 'tr' ) .
 243                                 $this->formatRow( wfMsgExt( 'statistics-views-total', array( 'parseinline' ) ),
 244                                         $wgLang->formatNum( $this->views ),
 245                                                 array ( 'class' => 'mw-statistics-views-total' ), 'statistics-views-total-desc' ) .
 246                                 $this->formatRow( wfMsgExt( 'statistics-views-peredit', array( 'parseinline' ) ),
 247                                         $wgLang->formatNum( sprintf( '%.2f', $this->edits ?
 248                                                 $this->views / $this->edits : 0 ) ),
 249                                                 array ( 'class' => 'mw-statistics-views-peredit' ) );
 250         }
 251
 252         private function getMostViewedPages() {
 253                 global $wgLang, $wgUser;
 254                 $text = '';
 255                 $dbr = wfGetDB( DB_SLAVE );
 256                 $sk = $wgUser->getSkin();
 257                 $res = $dbr->select(
 258                                 'page',
 259                                 array(
 260                                         'page_namespace',
 261                                         'page_title',
 262                                         'page_counter',
 263                                 ),
 264                                 array(
 265                                         'page_is_redirect' => 0,
 266                                         'page_counter > 0',
 267                                 ),
 268                                 __METHOD__,
 269                                 array(
 270                                         'ORDER BY' => 'page_counter DESC',
 271                                         'LIMIT' => 10,
 272                                 )
 273                         );
 274                         if( $res->numRows() > 0 ) {
 275                                 $text .= Xml::openElement( 'tr' );
 276                                 $text .= Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-mostpopular', array( 'parseinline' ) ) );
 277                                 $text .= Xml::closeElement( 'tr' );
 278                                 foreach ( $res as $row ) {
 279                                         $title = Title::makeTitleSafe( $row->page_namespace, $row->page_title );
 280                                         if( $title instanceof Title ) {
 281                                                 $text .= $this->formatRow( $sk->link( $title ),
 282                                                                 $wgLang->formatNum( $row->page_counter ) );
 283
 284                                         }
 285                                 }
 286                                 $res->free();
 287                         }
 288                 return $text;
 289         }
 290
 291         private function getOtherStats( $stats ) {
 292                 global $wgLang;
 293
 294                 if ( !count( $stats ) )
 295                         return '';
 296
 297                 $return = Xml::openElement( 'tr' ) .
 298                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-hooks', array( 'parseinline' ) ) ) .
 299                         Xml::closeElement( 'tr' );
 300
 301                 foreach( $stats as $name => $number ) {
 302                         $name = htmlspecialchars( $name );
 303                         $number = htmlspecialchars( $number );
 304
 305                         $return .= $this->formatRow( $name, $wgLang->formatNum( $number ), array( 'class' => 'mw-statistics-hook' ) );
 306                 }
 307
 308                 return $return;
 309         }
 310 }