27b998755c
See my comments on r75274, for which this is a follow-up. Using a dedicated, but constant patrol token is in my opinion the optimal compromise between performance (only require fetching the token once) and security (leaking the token will only compromise the patrolling feature).
613 lines
19 KiB
PHP
613 lines
19 KiB
PHP
<?php
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/**
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* API for MediaWiki 1.8+
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*
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* Created on Oct 19, 2006
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*
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* Copyright © 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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*/
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if ( !defined( 'MEDIAWIKI' ) ) {
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// Eclipse helper - will be ignored in production
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require_once( 'ApiQueryBase.php' );
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}
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/**
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* A query action to enumerate the recent changes that were done to the wiki.
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* Various filters are supported.
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*
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* @ingroup API
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*/
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class ApiQueryRecentChanges extends ApiQueryBase {
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public function __construct( $query, $moduleName ) {
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parent::__construct( $query, $moduleName, 'rc' );
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}
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private $fld_comment = false, $fld_parsedcomment = false, $fld_user = false, $fld_userid = false,
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$fld_flags = false, $fld_timestamp = false, $fld_title = false, $fld_ids = false,
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$fld_sizes = false, $fld_redirect = false, $fld_patrolled = false, $fld_loginfo = false, $fld_tags = false;
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private $tokenFunctions;
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/**
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* Get an array mapping token names to their handler functions.
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* The prototype for a token function is func($pageid, $title, $rc)
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* it should return a token or false (permission denied)
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* @return array(tokenname => function)
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*/
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protected function getTokenFunctions() {
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// Don't call the hooks twice
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if ( isset( $this->tokenFunctions ) ) {
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return $this->tokenFunctions;
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}
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// If we're in JSON callback mode, no tokens can be obtained
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if ( !is_null( $this->getMain()->getRequest()->getVal( 'callback' ) ) ) {
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return array();
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}
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$this->tokenFunctions = array(
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'patrol' => array( 'ApiQueryRecentChanges', 'getPatrolToken' )
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);
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wfRunHooks( 'APIQueryRecentChangesTokens', array( &$this->tokenFunctions ) );
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return $this->tokenFunctions;
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}
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public static function getPatrolToken( $pageid, $title, $rc ) {
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global $wgUser;
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if ( !$wgUser->useRCPatrol() && ( !$wgUser->useNPPatrol() ||
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$rc->getAttribute( 'rc_type' ) != RC_NEW ) )
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{
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return false;
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}
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// The patrol token is always the same, let's exploit that
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static $cachedPatrolToken = null;
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if ( is_null( $cachedPatrolToken ) ) {
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$cachedPatrolToken = $wgUser->editToken( 'patrol' );
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}
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return $cachedPatrolToken;
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}
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/**
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* Sets internal state to include the desired properties in the output.
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* @param $prop Array associative array of properties, only keys are used here
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*/
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public function initProperties( $prop ) {
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$this->fld_comment = isset( $prop['comment'] );
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$this->fld_parsedcomment = isset( $prop['parsedcomment'] );
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$this->fld_user = isset( $prop['user'] );
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$this->fld_userid = isset( $prop['userid'] );
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$this->fld_flags = isset( $prop['flags'] );
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$this->fld_timestamp = isset( $prop['timestamp'] );
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$this->fld_title = isset( $prop['title'] );
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$this->fld_ids = isset( $prop['ids'] );
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$this->fld_sizes = isset( $prop['sizes'] );
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$this->fld_redirect = isset( $prop['redirect'] );
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$this->fld_patrolled = isset( $prop['patrolled'] );
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$this->fld_loginfo = isset( $prop['loginfo'] );
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$this->fld_tags = isset( $prop['tags'] );
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}
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/**
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* Generates and outputs the result of this query based upon the provided parameters.
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*/
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public function execute() {
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global $wgUser;
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/* Get the parameters of the request. */
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$params = $this->extractRequestParams();
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/* Build our basic query. Namely, something along the lines of:
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* SELECT * FROM recentchanges WHERE rc_timestamp > $start
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* AND rc_timestamp < $end AND rc_namespace = $namespace
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* AND rc_deleted = '0'
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*/
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$this->addTables( 'recentchanges' );
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$index = array( 'recentchanges' => 'rc_timestamp' ); // May change
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$this->addWhereRange( 'rc_timestamp', $params['dir'], $params['start'], $params['end'] );
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$this->addWhereFld( 'rc_namespace', $params['namespace'] );
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$this->addWhereFld( 'rc_deleted', 0 );
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if ( !is_null( $params['type'] ) ) {
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$this->addWhereFld( 'rc_type', $this->parseRCType( $params['type'] ) );
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}
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if ( !is_null( $params['show'] ) ) {
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$show = array_flip( $params['show'] );
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/* Check for conflicting parameters. */
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if ( ( isset( $show['minor'] ) && isset( $show['!minor'] ) )
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|| ( isset( $show['bot'] ) && isset( $show['!bot'] ) )
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|| ( isset( $show['anon'] ) && isset( $show['!anon'] ) )
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|| ( isset( $show['redirect'] ) && isset( $show['!redirect'] ) )
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|| ( isset( $show['patrolled'] ) && isset( $show['!patrolled'] ) )
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)
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{
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$this->dieUsageMsg( array( 'show' ) );
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}
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// Check permissions
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if ( isset( $show['patrolled'] ) || isset( $show['!patrolled'] ) ) {
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if ( !$wgUser->useRCPatrol() && !$wgUser->useNPPatrol() ) {
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$this->dieUsage( 'You need the patrol right to request the patrolled flag', 'permissiondenied' );
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}
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}
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/* Add additional conditions to query depending upon parameters. */
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$this->addWhereIf( 'rc_minor = 0', isset( $show['!minor'] ) );
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$this->addWhereIf( 'rc_minor != 0', isset( $show['minor'] ) );
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$this->addWhereIf( 'rc_bot = 0', isset( $show['!bot'] ) );
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$this->addWhereIf( 'rc_bot != 0', isset( $show['bot'] ) );
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$this->addWhereIf( 'rc_user = 0', isset( $show['anon'] ) );
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$this->addWhereIf( 'rc_user != 0', isset( $show['!anon'] ) );
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$this->addWhereIf( 'rc_patrolled = 0', isset( $show['!patrolled'] ) );
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$this->addWhereIf( 'rc_patrolled != 0', isset( $show['patrolled'] ) );
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$this->addWhereIf( 'page_is_redirect = 1', isset( $show['redirect'] ) );
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// Don't throw log entries out the window here
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$this->addWhereIf( 'page_is_redirect = 0 OR page_is_redirect IS NULL', isset( $show['!redirect'] ) );
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}
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if ( !is_null( $params['user'] ) && !is_null( $params['excludeuser'] ) ) {
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$this->dieUsage( 'user and excludeuser cannot be used together', 'user-excludeuser' );
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}
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if ( !is_null( $params['user'] ) ) {
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$this->addWhereFld( 'rc_user_text', $params['user'] );
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$index['recentchanges'] = 'rc_user_text';
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}
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if ( !is_null( $params['excludeuser'] ) ) {
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// We don't use the rc_user_text index here because
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// * it would require us to sort by rc_user_text before rc_timestamp
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// * the != condition doesn't throw out too many rows anyway
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$this->addWhere( 'rc_user_text != ' . $this->getDB()->addQuotes( $params['excludeuser'] ) );
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}
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/* Add the fields we're concerned with to our query. */
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$this->addFields( array(
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'rc_timestamp',
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'rc_namespace',
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'rc_title',
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'rc_cur_id',
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'rc_type',
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'rc_moved_to_ns',
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'rc_moved_to_title',
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'rc_deleted'
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) );
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/* Determine what properties we need to display. */
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if ( !is_null( $params['prop'] ) ) {
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$prop = array_flip( $params['prop'] );
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/* Set up internal members based upon params. */
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$this->initProperties( $prop );
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if ( $this->fld_patrolled && !$wgUser->useRCPatrol() && !$wgUser->useNPPatrol() ) {
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$this->dieUsage( 'You need the patrol right to request the patrolled flag', 'permissiondenied' );
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}
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/* Add fields to our query if they are specified as a needed parameter. */
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$this->addFieldsIf( 'rc_id', $this->fld_ids );
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$this->addFieldsIf( 'rc_this_oldid', $this->fld_ids );
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$this->addFieldsIf( 'rc_last_oldid', $this->fld_ids );
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$this->addFieldsIf( 'rc_comment', $this->fld_comment || $this->fld_parsedcomment );
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$this->addFieldsIf( 'rc_user', $this->fld_user );
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$this->addFieldsIf( 'rc_user_text', $this->fld_user || $this->fld_userid );
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$this->addFieldsIf( 'rc_minor', $this->fld_flags );
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$this->addFieldsIf( 'rc_bot', $this->fld_flags );
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$this->addFieldsIf( 'rc_new', $this->fld_flags );
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$this->addFieldsIf( 'rc_old_len', $this->fld_sizes );
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$this->addFieldsIf( 'rc_new_len', $this->fld_sizes );
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$this->addFieldsIf( 'rc_patrolled', $this->fld_patrolled );
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$this->addFieldsIf( 'rc_logid', $this->fld_loginfo );
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$this->addFieldsIf( 'rc_log_type', $this->fld_loginfo );
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$this->addFieldsIf( 'rc_log_action', $this->fld_loginfo );
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$this->addFieldsIf( 'rc_params', $this->fld_loginfo );
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if ( $this->fld_redirect || isset( $show['redirect'] ) || isset( $show['!redirect'] ) ) {
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$this->addTables( 'page' );
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$this->addJoinConds( array( 'page' => array( 'LEFT JOIN', array( 'rc_namespace=page_namespace', 'rc_title=page_title' ) ) ) );
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$this->addFields( 'page_is_redirect' );
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}
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}
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if ( $this->fld_tags ) {
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$this->addTables( 'tag_summary' );
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$this->addJoinConds( array( 'tag_summary' => array( 'LEFT JOIN', array( 'rc_id=ts_rc_id' ) ) ) );
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$this->addFields( 'ts_tags' );
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}
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if ( !is_null( $params['tag'] ) ) {
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$this->addTables( 'change_tag' );
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$this->addJoinConds( array( 'change_tag' => array( 'INNER JOIN', array( 'rc_id=ct_rc_id' ) ) ) );
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$this->addWhereFld( 'ct_tag' , $params['tag'] );
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global $wgOldChangeTagsIndex;
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$index['change_tag'] = $wgOldChangeTagsIndex ? 'ct_tag' : 'change_tag_tag_id';
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}
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$this->token = $params['token'];
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$this->addOption( 'LIMIT', $params['limit'] + 1 );
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$this->addOption( 'USE INDEX', $index );
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$count = 0;
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/* Perform the actual query. */
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$res = $this->select( __METHOD__ );
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/* Iterate through the rows, adding data extracted from them to our query result. */
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foreach ( $res as $row ) {
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if ( ++ $count > $params['limit'] ) {
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// We've reached the one extra which shows that there are additional pages to be had. Stop here...
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$this->setContinueEnumParameter( 'start', wfTimestamp( TS_ISO_8601, $row->rc_timestamp ) );
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break;
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}
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/* Extract the data from a single row. */
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$vals = $this->extractRowInfo( $row );
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/* Add that row's data to our final output. */
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if ( !$vals ) {
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continue;
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}
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$fit = $this->getResult()->addValue( array( 'query', $this->getModuleName() ), null, $vals );
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if ( !$fit ) {
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$this->setContinueEnumParameter( 'start', wfTimestamp( TS_ISO_8601, $row->rc_timestamp ) );
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break;
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}
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}
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/* Format the result */
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$this->getResult()->setIndexedTagName_internal( array( 'query', $this->getModuleName() ), 'rc' );
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}
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/**
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* Extracts from a single sql row the data needed to describe one recent change.
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*
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* @param $row The row from which to extract the data.
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* @return An array mapping strings (descriptors) to their respective string values.
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* @access public
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*/
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public function extractRowInfo( $row ) {
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/* If page was moved somewhere, get the title of the move target. */
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$movedToTitle = false;
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if ( isset( $row->rc_moved_to_title ) && $row->rc_moved_to_title !== '' )
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{
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$movedToTitle = Title::makeTitle( $row->rc_moved_to_ns, $row->rc_moved_to_title );
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}
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/* Determine the title of the page that has been changed. */
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$title = Title::makeTitle( $row->rc_namespace, $row->rc_title );
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/* Our output data. */
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$vals = array();
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$type = intval( $row->rc_type );
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/* Determine what kind of change this was. */
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switch ( $type ) {
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case RC_EDIT:
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$vals['type'] = 'edit';
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break;
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case RC_NEW:
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$vals['type'] = 'new';
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break;
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case RC_MOVE:
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$vals['type'] = 'move';
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break;
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case RC_LOG:
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$vals['type'] = 'log';
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break;
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case RC_MOVE_OVER_REDIRECT:
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$vals['type'] = 'move over redirect';
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break;
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default:
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$vals['type'] = $type;
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}
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/* Create a new entry in the result for the title. */
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if ( $this->fld_title ) {
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ApiQueryBase::addTitleInfo( $vals, $title );
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if ( $movedToTitle ) {
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ApiQueryBase::addTitleInfo( $vals, $movedToTitle, 'new_' );
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}
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}
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/* Add ids, such as rcid, pageid, revid, and oldid to the change's info. */
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if ( $this->fld_ids ) {
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$vals['rcid'] = intval( $row->rc_id );
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$vals['pageid'] = intval( $row->rc_cur_id );
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$vals['revid'] = intval( $row->rc_this_oldid );
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$vals['old_revid'] = intval( $row->rc_last_oldid );
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}
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/* Add user data and 'anon' flag, if use is anonymous. */
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if ( $this->fld_user || $this->fld_userid ) {
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if ( $this->fld_user ) {
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$vals['user'] = $row->rc_user_text;
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}
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if ( $this->fld_userid ) {
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$vals['userid'] = $row->rc_user;
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}
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if ( !$row->rc_user ) {
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$vals['anon'] = '';
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}
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}
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/* Add flags, such as new, minor, bot. */
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if ( $this->fld_flags ) {
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if ( $row->rc_bot ) {
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$vals['bot'] = '';
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}
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if ( $row->rc_new ) {
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$vals['new'] = '';
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}
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if ( $row->rc_minor ) {
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$vals['minor'] = '';
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}
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}
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/* Add sizes of each revision. (Only available on 1.10+) */
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if ( $this->fld_sizes ) {
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$vals['oldlen'] = intval( $row->rc_old_len );
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$vals['newlen'] = intval( $row->rc_new_len );
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}
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/* Add the timestamp. */
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if ( $this->fld_timestamp ) {
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$vals['timestamp'] = wfTimestamp( TS_ISO_8601, $row->rc_timestamp );
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}
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/* Add edit summary / log summary. */
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if ( $this->fld_comment && isset( $row->rc_comment ) ) {
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$vals['comment'] = $row->rc_comment;
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}
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if ( $this->fld_parsedcomment && isset( $row->rc_comment ) ) {
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global $wgUser;
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$vals['parsedcomment'] = $wgUser->getSkin()->formatComment( $row->rc_comment, $title );
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}
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if ( $this->fld_redirect ) {
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if ( $row->page_is_redirect ) {
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$vals['redirect'] = '';
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}
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}
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/* Add the patrolled flag */
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if ( $this->fld_patrolled && $row->rc_patrolled == 1 ) {
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$vals['patrolled'] = '';
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}
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if ( $this->fld_loginfo && $row->rc_type == RC_LOG ) {
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$vals['logid'] = intval( $row->rc_logid );
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$vals['logtype'] = $row->rc_log_type;
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$vals['logaction'] = $row->rc_log_action;
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ApiQueryLogEvents::addLogParams(
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$this->getResult(),
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$vals, $row->rc_params,
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$row->rc_log_type, $row->rc_timestamp
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);
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}
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if ( $this->fld_tags ) {
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if ( $row->ts_tags ) {
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$tags = explode( ',', $row->ts_tags );
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$this->getResult()->setIndexedTagName( $tags, 'tag' );
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$vals['tags'] = $tags;
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} else {
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$vals['tags'] = array();
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}
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}
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if ( !is_null( $this->token ) ) {
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$tokenFunctions = $this->getTokenFunctions();
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foreach ( $this->token as $t ) {
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$val = call_user_func( $tokenFunctions[$t], $row->rc_cur_id,
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$title, RecentChange::newFromRow( $row ) );
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if ( $val === false ) {
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$this->setWarning( "Action '$t' is not allowed for the current user" );
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} else {
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$vals[$t . 'token'] = $val;
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}
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}
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}
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return $vals;
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}
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private function parseRCType( $type ) {
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if ( is_array( $type ) ) {
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$retval = array();
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foreach ( $type as $t ) {
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$retval[] = $this->parseRCType( $t );
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}
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return $retval;
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}
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switch( $type ) {
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case 'edit':
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return RC_EDIT;
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case 'new':
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return RC_NEW;
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case 'log':
|
|
return RC_LOG;
|
|
}
|
|
}
|
|
|
|
public function getCacheMode( $params ) {
|
|
if ( isset( $params['show'] ) ) {
|
|
foreach ( $params['show'] as $show ) {
|
|
if ( $show === 'patrolled' || $show === '!patrolled' ) {
|
|
return 'private';
|
|
}
|
|
}
|
|
}
|
|
if ( isset( $params['token'] ) ) {
|
|
return 'private';
|
|
}
|
|
if ( !is_null( $params['prop'] ) && in_array( 'parsedcomment', $params['prop'] ) ) {
|
|
// formatComment() calls wfMsg() among other things
|
|
return 'anon-public-user-private';
|
|
}
|
|
return 'public';
|
|
}
|
|
|
|
public function getAllowedParams() {
|
|
return array(
|
|
'start' => array(
|
|
ApiBase::PARAM_TYPE => 'timestamp'
|
|
),
|
|
'end' => array(
|
|
ApiBase::PARAM_TYPE => 'timestamp'
|
|
),
|
|
'dir' => array(
|
|
ApiBase::PARAM_DFLT => 'older',
|
|
ApiBase::PARAM_TYPE => array(
|
|
'newer',
|
|
'older'
|
|
)
|
|
),
|
|
'namespace' => array(
|
|
ApiBase::PARAM_ISMULTI => true,
|
|
ApiBase::PARAM_TYPE => 'namespace'
|
|
),
|
|
'user' => array(
|
|
ApiBase::PARAM_TYPE => 'user'
|
|
),
|
|
'excludeuser' => array(
|
|
ApiBase::PARAM_TYPE => 'user'
|
|
),
|
|
'tag' => null,
|
|
'prop' => array(
|
|
ApiBase::PARAM_ISMULTI => true,
|
|
ApiBase::PARAM_DFLT => 'title|timestamp|ids',
|
|
ApiBase::PARAM_TYPE => array(
|
|
'user',
|
|
'userid',
|
|
'comment',
|
|
'parsedcomment',
|
|
'flags',
|
|
'timestamp',
|
|
'title',
|
|
'ids',
|
|
'sizes',
|
|
'redirect',
|
|
'patrolled',
|
|
'loginfo',
|
|
'tags'
|
|
)
|
|
),
|
|
'token' => array(
|
|
ApiBase::PARAM_TYPE => array_keys( $this->getTokenFunctions() ),
|
|
ApiBase::PARAM_ISMULTI => true
|
|
),
|
|
'show' => array(
|
|
ApiBase::PARAM_ISMULTI => true,
|
|
ApiBase::PARAM_TYPE => array(
|
|
'minor',
|
|
'!minor',
|
|
'bot',
|
|
'!bot',
|
|
'anon',
|
|
'!anon',
|
|
'redirect',
|
|
'!redirect',
|
|
'patrolled',
|
|
'!patrolled'
|
|
)
|
|
),
|
|
'limit' => array(
|
|
ApiBase::PARAM_DFLT => 10,
|
|
ApiBase::PARAM_TYPE => 'limit',
|
|
ApiBase::PARAM_MIN => 1,
|
|
ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
|
|
ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
|
|
),
|
|
'type' => array(
|
|
ApiBase::PARAM_ISMULTI => true,
|
|
ApiBase::PARAM_TYPE => array(
|
|
'edit',
|
|
'new',
|
|
'log'
|
|
)
|
|
)
|
|
);
|
|
}
|
|
|
|
public function getParamDescription() {
|
|
return array(
|
|
'start' => 'The timestamp to start enumerating from',
|
|
'end' => 'The timestamp to end enumerating',
|
|
'dir' => 'In which direction to enumerate',
|
|
'namespace' => 'Filter log entries to only this namespace(s)',
|
|
'user' => 'Only list changes by this user',
|
|
'excludeuser' => 'Don\'t list changes by this user',
|
|
'prop' => array(
|
|
'Include additional pieces of information',
|
|
' user - Adds the user responsible for the edit and tags if they are an IP',
|
|
' userid - Adds the user id responsible for the edit',
|
|
' comment - Adds the comment for the edit',
|
|
' parsedcomment - Adds the parsed comment for the edit',
|
|
' flags - Adds flags for the edit',
|
|
' timestamp - Adds timestamp of the edit',
|
|
' title - Adds the page title of the edit',
|
|
' ids - Adds the page id, recent changes id and the new and old revision id',
|
|
' sizes - Adds the new and old page length in bytes',
|
|
' redirect - Tags edit if page is a redirect',
|
|
' patrolled - Tags edits have have been patrolled',
|
|
' loginfo - Adds log information (logid, logtype, etc) to log entries',
|
|
' tags - Lists tags for the entry',
|
|
),
|
|
'token' => 'Which tokens to obtain for each change',
|
|
'show' => array(
|
|
'Show only items that meet this criteria.',
|
|
"For example, to see only minor edits done by logged-in users, set {$this->getModulePrefix()}show=minor|!anon"
|
|
),
|
|
'type' => 'Which types of changes to show',
|
|
'limit' => 'How many total changes to return',
|
|
'tag' => 'Only list changes tagged with this tag',
|
|
);
|
|
}
|
|
|
|
public function getDescription() {
|
|
return 'Enumerate recent changes';
|
|
}
|
|
|
|
public function getPossibleErrors() {
|
|
return array_merge( parent::getPossibleErrors(), array(
|
|
array( 'show' ),
|
|
array( 'code' => 'permissiondenied', 'info' => 'You need the patrol right to request the patrolled flag' ),
|
|
array( 'code' => 'user-excludeuser', 'info' => 'user and excludeuser cannot be used together' ),
|
|
) );
|
|
}
|
|
|
|
protected function getExamples() {
|
|
return array(
|
|
'api.php?action=query&list=recentchanges'
|
|
);
|
|
}
|
|
|
|
public function getVersion() {
|
|
return __CLASS__ . ': $Id$';
|
|
}
|
|
}
|