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<?php
/**
* WhosOnline extension - creates a list of logged-in users & anons currently online
* The list can be viewed at Special:WhosOnline
*
* @file
* @ingroup Extensions
* @author Maciej Brencz <macbre(at)-spam-wikia.com> - minor fixes and improvements
* @author ChekMate Security Group - original code
* @see http://www.chekmate.org/wiki/index.php/MW:_Whos_Online_Extension
* @license GPL-2.0-or-later
*/
class PagerWhosOnline extends IndexPager {
function __construct() {
parent::__construct();
$this->mLimit = $this->mDefaultLimit;
}
/** @inheritDoc */
function getQueryInfo() {
global $wgWhosOnlineShowAnons;
return [
'tables' => [ 'online' ],
'fields' => [ 'username' ],
'options' => [
'ORDER BY' => 'timestamp DESC',
'GROUP BY' => 'username'
],
'conds' => $wgWhosOnlineShowAnons
? []
: [ 'userid != 0' ]
];
}
/**
* use classical LIMIT/OFFSET instead of sorting by table key
* @inheritDoc
*/
function reallyDoQuery( $offset, $limit, $descending ) {
$info = $this->getQueryInfo();
$tables = $info['tables'];
$fields = $info['fields'];
$conds = isset( $info['conds'] ) ? $info['conds'] : [];
$options = isset( $info['options'] ) ? $info['options'] : [];
$options['LIMIT'] = intval( $limit );
$options['OFFSET'] = intval( $offset );
return $this->mDb->select( $tables, $fields, $conds, __METHOD__, $options );
}
/** @inheritDoc */
function getIndexField() {
// dummy
return 'username';
}
/** @inheritDoc */
function formatRow( $row ) {
global $wgWhosOnlineShowRealName;
$userPageLink = Title::makeTitle( NS_USER, $row->username )->getFullURL();
$name = $row->username;
if ( $wgWhosOnlineShowRealName ) {
$user = User::newFromName( $name );
if ( $user ) {
$realName = $user->getRealName();
if ( $realName !== '' ) {
$name = $realName;
}
}
}
return '<li><a href="' . htmlspecialchars( $userPageLink, ENT_QUOTES ) . '">' .
htmlspecialchars( $name, ENT_QUOTES ) . '</a></li>';
}
/**
* @return int
*/
function countUsersOnline() {
$row = $this->mDb->selectRow(
'online',
'COUNT(*) AS cnt',
'userid != 0',
__METHOD__,
'GROUP BY username'
);
$users = (int)$row->cnt;
return $users;
}
/** @inheritDoc */
function getNavigationBar() {
return $this->buildPrevNextNavigation(
SpecialPage::getTitleFor( 'WhosOnline' ),
$this->mOffset,
$this->mLimit,
[],
// show next link
$this->countUsersOnline() < ( $this->mLimit + (int)$this->mOffset )
);
}
}