Expose $wgMaxArticleSize in siteinfo query api

[mediawiki.git] / includes / specials / pagers / ActiveUsersPager.php

<?php
/**
 * Copyright © 2008 Aaron Schulz
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 * @ingroup Pager
 */

/**
 * This class is used to get a list of active users. The ones with specials
 * rights (sysop, bureaucrat, developer) will have them displayed
 * next to their names.
 *
 * @ingroup Pager
 */
class ActiveUsersPager extends UsersPager {

        /**
         * @var FormOptions
         */
        protected $opts;

        /**
         * @var array
         */
        protected $hideGroups = [];

        /**
         * @var array
         */
        protected $hideRights = [];

        /**
         * @var array
         */
        private $blockStatusByUid;

        /**
         * @param IContextSource $context
         * @param FormOptions $opts
         */
        function __construct( IContextSource $context = null, FormOptions $opts ) {
                parent::__construct( $context );

                $this->RCMaxAge = $this->getConfig()->get( 'ActiveUserDays' );
                $this->requestedUser = '';

                $un = $opts->getValue( 'username' );
                if ( $un != '' ) {
                        $username = Title::makeTitleSafe( NS_USER, $un );
                        if ( !is_null( $username ) ) {
                                $this->requestedUser = $username->getText();
                        }
                }

                if ( $opts->getValue( 'hidebots' ) == 1 ) {
                        $this->hideRights[] = 'bot';
                }
                if ( $opts->getValue( 'hidesysops' ) == 1 ) {
                        $this->hideGroups[] = 'sysop';
                }
        }

        function getIndexField() {
                return 'qcc_title';
        }

        function getQueryInfo() {
                $dbr = $this->getDatabase();

                $activeUserSeconds = $this->getConfig()->get( 'ActiveUserDays' ) * 86400;
                $timestamp = $dbr->timestamp( wfTimestamp( TS_UNIX ) - $activeUserSeconds );
                $conds = [
                        'qcc_type' => 'activeusers',
                        'qcc_namespace' => NS_USER,
                        'user_name = qcc_title',
                        'rc_user_text = qcc_title',
                        'rc_type != ' . $dbr->addQuotes( RC_EXTERNAL ), // Don't count wikidata.
                        'rc_type != ' . $dbr->addQuotes( RC_CATEGORIZE ), // Don't count categorization changes.
                        'rc_log_type IS NULL OR rc_log_type != ' . $dbr->addQuotes( 'newusers' ),
                        'rc_timestamp >= ' . $dbr->addQuotes( $timestamp ),
                ];
                if ( $this->requestedUser != '' ) {
                        $conds[] = 'qcc_title >= ' . $dbr->addQuotes( $this->requestedUser );
                }
                if ( !$this->getUser()->isAllowed( 'hideuser' ) ) {
                        $conds[] = 'NOT EXISTS (' . $dbr->selectSQLText(
                                        'ipblocks', '1', [ 'ipb_user=user_id', 'ipb_deleted' => 1 ]
                                ) . ')';
                }

                if ( $dbr->implicitGroupby() ) {
                        $options = [ 'GROUP BY' => [ 'qcc_title' ] ];
                } else {
                        $options = [ 'GROUP BY' => [ 'user_name', 'user_id', 'qcc_title' ] ];
                }

                return [
                        'tables' => [ 'querycachetwo', 'user', 'recentchanges' ],
                        'fields' => [ 'user_name', 'user_id', 'recentedits' => 'COUNT(*)', 'qcc_title' ],
                        'options' => $options,
                        'conds' => $conds
                ];
        }

        function doBatchLookups() {
                parent::doBatchLookups();

                $uids = [];
                foreach ( $this->mResult as $row ) {
                        $uids[] = $row->user_id;
                }
                // Fetch the block status of the user for showing "(blocked)" text and for
                // striking out names of suppressed users when privileged user views the list.
                // Although the first query already hits the block table for un-privileged, this
                // is done in two queries to avoid huge quicksorts and to make COUNT(*) correct.
                $dbr = $this->getDatabase();
                $res = $dbr->select( 'ipblocks',
                        [ 'ipb_user', 'MAX(ipb_deleted) AS block_status' ],
                        [ 'ipb_user' => $uids ],
                        __METHOD__,
                        [ 'GROUP BY' => [ 'ipb_user' ] ]
                );
                $this->blockStatusByUid = [];
                foreach ( $res as $row ) {
                        $this->blockStatusByUid[$row->ipb_user] = $row->block_status; // 0 or 1
                }
                $this->mResult->seek( 0 );
        }

        function formatRow( $row ) {
                $userName = $row->user_name;

                $ulinks = Linker::userLink( $row->user_id, $userName );
                $ulinks .= Linker::userToolLinks( $row->user_id, $userName );

                $lang = $this->getLanguage();

                $list = [];
                $user = User::newFromId( $row->user_id );

                // User right filter
                foreach ( $this->hideRights as $right ) {
                        // Calling User::getRights() within the loop so that
                        // if the hideRights() filter is empty, we don't have to
                        // trigger the lazy-init of the big userrights array in the
                        // User object
                        if ( in_array( $right, $user->getRights() ) ) {
                                return '';
                        }
                }

                // User group filter
                // Note: This is a different loop than for user rights,
                // because we're reusing it to build the group links
                // at the same time
                $groups_list = self::getGroups( intval( $row->user_id ), $this->userGroupCache );
                foreach ( $groups_list as $group ) {
                        if ( in_array( $group, $this->hideGroups ) ) {
                                return '';
                        }
                        $list[] = self::buildGroupLink( $group, $userName );
                }

                $groups = $lang->commaList( $list );

                $item = $lang->specialList( $ulinks, $groups );

                $isBlocked = isset( $this->blockStatusByUid[$row->user_id] );
                if ( $isBlocked && $this->blockStatusByUid[$row->user_id] == 1 ) {
                        $item = "<span class=\"deleted\">$item</span>";
                }
                $count = $this->msg( 'activeusers-count' )->numParams( $row->recentedits )
                        ->params( $userName )->numParams( $this->RCMaxAge )->escaped();
                $blocked = $isBlocked ? ' ' . $this->msg( 'listusers-blocked', $userName )->escaped() : '';

                return Html::rawElement( 'li', [], "{$item} [{$count}]{$blocked}" );
        }

}