includes/specials/SpecialStatistics.php

   1 <?php
   2 /**
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  * http://www.gnu.org/copyleft/gpl.html
  18  */
  19
  20 /**
  21  * Special page lists various statistics, including the contents of
  22  * `site_stats`, plus page view details if enabled
  23  *
  24  * @file
  25  * @ingroup SpecialPage
  26  */
  27
  28 /**
  29  * Some statistics about the wiki
  30  */
  31 class SpecialStatistics extends SpecialPage {
  32
  33         private $views, $edits, $good, $images, $total, $users,
  34                         $activeUsers, $admins, $numJobs = 0;
  35
  36         public function __construct() {
  37                 parent::__construct( 'Statistics' );
  38         }
  39
  40         public function execute( $par ) {
  41                 global $wgOut, $wgRequest, $wgMemc;
  42                 global $wgDisableCounters, $wgMiserMode;
  43
  44                 $this->setHeaders();
  45
  46                 $this->views = SiteStats::views();
  47                 $this->edits = SiteStats::edits();
  48                 $this->good = SiteStats::articles();
  49                 $this->images = SiteStats::images();
  50                 $this->total = SiteStats::pages();
  51                 $this->users = SiteStats::users();
  52                 $this->activeUsers = SiteStats::activeUsers();
  53                 $this->admins = SiteStats::numberingroup('sysop');
  54                 $this->numJobs = SiteStats::jobs();
  55                 $this->hook = '';
  56
  57                 # Staticic - views
  58                 $viewsStats = '';
  59                 if( !$wgDisableCounters ) {
  60                         $viewsStats = $this->getViewsStats();
  61                 }
  62
  63                 # Set active user count
  64                 if( !$wgMiserMode ) {
  65                         $key = wfMemcKey( 'sitestats', 'activeusers-updated' );
  66                         // Re-calculate the count if the last tally is old...
  67                         if( !$wgMemc->get($key) ) {
  68                                 $dbw = wfGetDB( DB_MASTER );
  69                                 SiteStatsUpdate::cacheUpdate( $dbw );
  70                                 $wgMemc->set( $key, '1', 24*3600 ); // don't update for 1 day
  71                         }
  72                 }
  73
  74                 # Do raw output
  75                 if( $wgRequest->getVal( 'action' ) == 'raw' ) {
  76                         $this->doRawOutput();
  77                 }
  78
  79                 $text = Xml::openElement( 'table', array( 'class' => 'wikitable mw-statistics-table' ) );
  80
  81                 # Statistic - pages
  82                 $text .= $this->getPageStats();
  83
  84                 # Statistic - edits
  85                 $text .= $this->getEditStats();
  86
  87                 # Statistic - users
  88                 $text .= $this->getUserStats();
  89
  90                 # Statistic - usergroups
  91                 $text .= $this->getGroupStats();
  92                 $text .= $viewsStats;
  93
  94                 # Statistic - popular pages
  95                 if( !$wgDisableCounters && !$wgMiserMode ) {
  96                         $text .= $this->getMostViewedPages();
  97                 }
  98
  99                 # Statistic - other
 100                 $extraStats = array();
 101                 if( wfRunHooks( 'SpecialStatsAddExtra', array( &$extraStats ) ) ) {
 102                         $text .= $this->getOtherStats( $extraStats );
 103                 }
 104
 105                 $text .= Xml::closeElement( 'table' );
 106
 107                 # Customizable footer
 108                 $footer = wfMsgExt( 'statistics-footer', array('parseinline') );
 109                 if( !wfEmptyMsg( 'statistics-footer', $footer ) && $footer != '' ) {
 110                         $text .= "\n" . $footer;
 111                 }
 112
 113                 $wgOut->addHTML( $text );
 114         }
 115
 116         /**
 117          * Format a row
 118          * @param $text  String: description of the row
 119          * @param $number  Float: a statistical number
 120          * @param $trExtraParams  Array: params to table row, see Html::elememt
 121          * @param $descMsg  String: message key
 122          * @param $descMsgParam  Array: message params
 123          * @return string table row in HTML format
 124          */
 125         private function formatRow( $text, $number, $trExtraParams = array(), $descMsg = '', $descMsgParam = '' ) {
 126                 if( $descMsg ) {
 127                         $descriptionText = wfMsgExt( $descMsg, array( 'parseinline' ), $descMsgParam );
 128                         if ( !wfEmptyMsg( $descMsg, $descriptionText ) ) {
 129                                 $descriptionText = " ($descriptionText)";
 130                                 $text .= "<br />" . Xml::element( 'small', array( 'class' => 'mw-statistic-desc'),
 131                                         $descriptionText );
 132                         }
 133                 }
 134                 return
 135                 Html::rawElement( 'tr', $trExtraParams,
 136                         Html::rawElement( 'td', array(), $text ) .
 137                         Html::rawElement( 'td', array( 'class' => 'mw-statistics-numbers' ), $number )
 138                 );
 139         }
 140
 141         /**
 142          * Each of these methods is pretty self-explanatory, get a particular
 143          * row for the table of statistics
 144          * @return string
 145          */
 146         private function getPageStats() {
 147                 global $wgLang;
 148                 return Xml::openElement( 'tr' ) .
 149                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-pages', array( 'parseinline' ) ) ) .
 150                         Xml::closeElement( 'tr' ) .
 151                                 $this->formatRow( wfMsgExt( 'statistics-articles', array( 'parseinline' ) ),
 152                                                 $wgLang->formatNum( $this->good ),
 153                                                 array( 'class' => 'mw-statistics-articles' ) ) .
 154                                 $this->formatRow( wfMsgExt( 'statistics-pages', array( 'parseinline' ) ),
 155                                                 $wgLang->formatNum( $this->total ),
 156                                                 array( 'class' => 'mw-statistics-pages' ),
 157                                                 'statistics-pages-desc' ) .
 158                                 $this->formatRow( wfMsgExt( 'statistics-files', array( 'parseinline' ) ),
 159                                                 $wgLang->formatNum( $this->images ),
 160                                                 array( 'class' => 'mw-statistics-files' ) );
 161         }
 162         private function getEditStats() {
 163                 global $wgLang;
 164                 return Xml::openElement( 'tr' ) .
 165                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-edits', array( 'parseinline' ) ) ) .
 166                         Xml::closeElement( 'tr' ) .
 167                                 $this->formatRow( wfMsgExt( 'statistics-edits', array( 'parseinline' ) ),
 168                                                 $wgLang->formatNum( $this->edits ),
 169                                                 array( 'class' => 'mw-statistics-edits' ) ) .
 170                                 $this->formatRow( wfMsgExt( 'statistics-edits-average', array( 'parseinline' ) ),
 171                                                 $wgLang->formatNum( sprintf( '%.2f', $this->total ? $this->edits / $this->total : 0 ) ),
 172                                                 array( 'class' => 'mw-statistics-edits-average' ) );
 173         }
 174
 175         private function getUserStats() {
 176                 global $wgLang, $wgUser, $wgActiveUserDays;
 177                 $sk = $wgUser->getSkin();
 178                 return Xml::openElement( 'tr' ) .
 179                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-users', array( 'parseinline' ) ) ) .
 180                         Xml::closeElement( 'tr' ) .
 181                                 $this->formatRow( wfMsgExt( 'statistics-users', array( 'parseinline' ) ),
 182                                                 $wgLang->formatNum( $this->users ),
 183                                                 array( 'class' => 'mw-statistics-users' ) ) .
 184                                 $this->formatRow( wfMsgExt( 'statistics-users-active', array( 'parseinline' ) ) . ' ' .
 185                                                         $sk->link(
 186                                                                 SpecialPage::getTitleFor( 'Activeusers' ),
 187                                                                 wfMsgHtml( 'listgrouprights-members' ),
 188                                                                 array(),
 189                                                                 array(),
 190                                                                 'known'
 191                                                         ),
 192                                                 $wgLang->formatNum( $this->activeUsers ),
 193                                                 array( 'class' => 'mw-statistics-users-active' ),
 194                                                 'statistics-users-active-desc',
 195                                                 $wgLang->formatNum( $wgActiveUserDays ) );
 196         }
 197         private function getGroupStats() {
 198                 global $wgGroupPermissions, $wgImplicitGroups, $wgLang, $wgUser;
 199                 $sk = $wgUser->getSkin();
 200                 $text = '';
 201                 foreach( $wgGroupPermissions as $group => $permissions ) {
 202                         # Skip generic * and implicit groups
 203                         if ( in_array( $group, $wgImplicitGroups ) || $group == '*' ) {
 204                                 continue;
 205                         }
 206                         $groupname = htmlspecialchars( $group );
 207                         $msg = wfMsg( 'group-' . $groupname );
 208                         if ( wfEmptyMsg( 'group-' . $groupname, $msg ) || $msg == '' ) {
 209                                 $groupnameLocalized = $groupname;
 210                         } else {
 211                                 $groupnameLocalized = $msg;
 212                         }
 213                         $msg = wfMsgForContent( 'grouppage-' . $groupname );
 214                         if ( wfEmptyMsg( 'grouppage-' . $groupname, $msg ) || $msg == '' ) {
 215                                 $grouppageLocalized = MWNamespace::getCanonicalName( NS_PROJECT ) . ':' . $groupname;
 216                         } else {
 217                                 $grouppageLocalized = $msg;
 218                         }
 219                         $linkTarget = Title::newFromText( $grouppageLocalized );
 220                         $grouppage = $sk->link(
 221                                 $linkTarget,
 222                                 htmlspecialchars( $groupnameLocalized )
 223                         );
 224                         $grouplink = $sk->link(
 225                                 SpecialPage::getTitleFor( 'Listusers' ),
 226                                 wfMsgHtml( 'listgrouprights-members' ),
 227                                 array(),
 228                                 array( 'group' => $group ),
 229                                 'known'
 230                         );
 231                         # Add a class when a usergroup contains no members to allow hiding these rows
 232                         $classZero = '';
 233                         $countUsers = SiteStats::numberingroup( $groupname );
 234                         if( $countUsers == 0 ) {
 235                                 $classZero = ' statistics-group-zero';
 236                         }
 237                         $text .= $this->formatRow( $grouppage . ' ' . $grouplink,
 238                                 $wgLang->formatNum( $countUsers ),
 239                                 array( 'class' => 'statistics-group-' . Sanitizer::escapeClass( $group ) . $classZero )  );
 240                 }
 241                 return $text;
 242         }
 243         private function getViewsStats() {
 244                 global $wgLang;
 245                 return Xml::openElement( 'tr' ) .
 246                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-views', array( 'parseinline' ) ) ) .
 247                         Xml::closeElement( 'tr' ) .
 248                                 $this->formatRow( wfMsgExt( 'statistics-views-total', array( 'parseinline' ) ),
 249                                         $wgLang->formatNum( $this->views ),
 250                                                 array ( 'class' => 'mw-statistics-views-total' ) ) .
 251                                 $this->formatRow( wfMsgExt( 'statistics-views-peredit', array( 'parseinline' ) ),
 252                                         $wgLang->formatNum( sprintf( '%.2f', $this->edits ?
 253                                                 $this->views / $this->edits : 0 ) ),
 254                                                 array ( 'class' => 'mw-statistics-views-peredit' ) );
 255         }
 256         private function getMostViewedPages() {
 257                 global $wgLang, $wgUser;
 258                 $text = '';
 259                 $dbr = wfGetDB( DB_SLAVE );
 260                 $sk = $wgUser->getSkin();
 261                 $res = $dbr->select(
 262                                 'page',
 263                                 array(
 264                                         'page_namespace',
 265                                         'page_title',
 266                                         'page_counter',
 267                                 ),
 268                                 array(
 269                                         'page_is_redirect' => 0,
 270                                         'page_counter > 0',
 271                                 ),
 272                                 __METHOD__,
 273                                 array(
 274                                         'ORDER BY' => 'page_counter DESC',
 275                                         'LIMIT' => 10,
 276                                 )
 277                         );
 278                         if( $res->numRows() > 0 ) {
 279                                 $text .= Xml::openElement( 'tr' );
 280                                 $text .= Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-mostpopular', array( 'parseinline' ) ) );
 281                                 $text .= Xml::closeElement( 'tr' );
 282                                 while( $row = $res->fetchObject() ) {
 283                                         $title = Title::makeTitleSafe( $row->page_namespace, $row->page_title );
 284                                         if( $title instanceof Title ) {
 285                                                 $text .= $this->formatRow( $sk->link( $title ),
 286                                                                 $wgLang->formatNum( $row->page_counter ) );
 287
 288                                         }
 289                                 }
 290                                 $res->free();
 291                         }
 292                 return $text;
 293         }
 294
 295         private function getOtherStats( $stats ) {
 296                 global $wgLang;
 297
 298                 if ( !count( $stats ) )
 299                         return '';
 300
 301                 $return = Xml::openElement( 'tr' ) .
 302                         Xml::tags( 'th', array( 'colspan' => '2' ), wfMsgExt( 'statistics-header-hooks', array( 'parseinline' ) ) ) .
 303                         Xml::closeElement( 'tr' );
 304
 305                 foreach( $stats as $name => $number ) {
 306                         $name = htmlspecialchars( $name );
 307                         $number = htmlspecialchars( $number );
 308
 309                         $return .= $this->formatRow( $name, $wgLang->formatNum( $number ), array( 'class' => 'mw-statistics-hook' ) );
 310                 }
 311
 312                 return $return;
 313         }
 314
 315         /**
 316          * Do the action=raw output for this page. Legacy, but we support
 317          * it for backwards compatibility
 318          * http://lists.wikimedia.org/pipermail/wikitech-l/2008-August/039202.html
 319          */
 320         private function doRawOutput() {
 321                 global $wgOut;
 322                 $wgOut->disable();
 323                 header( 'Pragma: nocache' );
 324                 echo "total=" . $this->total . ";good=" . $this->good . ";views=" .
 325                                 $this->views . ";edits=" . $this->edits . ";users=" . $this->users . ";";
 326                 echo "activeusers=" . $this->activeUsers . ";admins=" . $this->admins .
 327                                 ";images=" . $this->images . ";jobs=" . $this->numJobs . "\n";
 328                 return;
 329         }
 330 }