includes/specials/SpecialActiveusers.php

   1 <?php
   2 /**
   3  * Implements Special:Activeusers
   4  *
   5  * Copyright © 2008 Aaron Schulz
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  * http://www.gnu.org/copyleft/gpl.html
  21  *
  22  * @file
  23  * @ingroup SpecialPage
  24  */
  25
  26 /**
  27  * @ingroup SpecialPage
  28  */
  29 class SpecialActiveUsers extends SpecialPage {
  30
  31         /**
  32          * Constructor
  33          */
  34         public function __construct() {
  35                 parent::__construct( 'Activeusers' );
  36         }
  37
  38         /**
  39          * Show the special page
  40          *
  41          * @param string $par Parameter passed to the page or null
  42          */
  43         public function execute( $par ) {
  44                 $days = $this->getConfig()->get( 'ActiveUserDays' );
  45
  46                 $this->setHeaders();
  47                 $this->outputHeader();
  48
  49                 $out = $this->getOutput();
  50                 $out->wrapWikiMsg( "<div class='mw-activeusers-intro'>\n$1\n</div>",
  51                         [ 'activeusers-intro', $this->getLanguage()->formatNum( $days ) ] );
  52
  53                 // Mention the level of cache staleness...
  54                 $dbr = wfGetDB( DB_SLAVE, 'recentchanges' );
  55                 $rcMax = $dbr->selectField( 'recentchanges', 'MAX(rc_timestamp)', '', __METHOD__ );
  56                 if ( $rcMax ) {
  57                         $cTime = $dbr->selectField( 'querycache_info',
  58                                 'qci_timestamp',
  59                                 [ 'qci_type' => 'activeusers' ],
  60                                 __METHOD__
  61                         );
  62                         if ( $cTime ) {
  63                                 $secondsOld = wfTimestamp( TS_UNIX, $rcMax ) - wfTimestamp( TS_UNIX, $cTime );
  64                         } else {
  65                                 $rcMin = $dbr->selectField( 'recentchanges', 'MIN(rc_timestamp)' );
  66                                 $secondsOld = time() - wfTimestamp( TS_UNIX, $rcMin );
  67                         }
  68                         if ( $secondsOld > 0 ) {
  69                                 $out->addWikiMsg( 'cachedspecial-viewing-cached-ttl',
  70                                 $this->getLanguage()->formatDuration( $secondsOld ) );
  71                         }
  72                 }
  73
  74                 $up = new ActiveUsersPager( $this->getContext(), null, $par );
  75
  76                 # getBody() first to check, if empty
  77                 $usersbody = $up->getBody();
  78
  79                 $out->addHTML( $up->getPageHeader() );
  80                 if ( $usersbody ) {
  81                         $out->addHTML(
  82                                 $up->getNavigationBar() .
  83                                 Html::rawElement( 'ul', [], $usersbody ) .
  84                                 $up->getNavigationBar()
  85                         );
  86                 } else {
  87                         $out->addWikiMsg( 'activeusers-noresult' );
  88                 }
  89         }
  90
  91         protected function getGroupName() {
  92                 return 'users';
  93         }
  94 }