includes/api/ApiPurge.php

   1 <?php
   2
   3 /**
   4  * API for MediaWiki 1.14+
   5  *
   6  * Created on Sep 2, 2008
   7  *
   8  * Copyright © 2008 Chad Horohoe
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  23  * http://www.gnu.org/copyleft/gpl.html
  24  *
  25  * @file
  26  */
  27
  28 if ( !defined( 'MEDIAWIKI' ) ) {
  29         require_once( 'ApiBase.php' );
  30 }
  31
  32 /**
  33  * API interface for page purging
  34  * @ingroup API
  35  */
  36 class ApiPurge extends ApiBase {
  37
  38         public function __construct( $main, $action ) {
  39                 parent::__construct( $main, $action );
  40         }
  41
  42         /**
  43          * Purges the cache of a page
  44          */
  45         public function execute() {
  46                 global $wgUser;
  47                 $params = $this->extractRequestParams();
  48                 if ( !$wgUser->isAllowed( 'purge' ) && !$this->getMain()->isInternalMode() &&
  49                                 !$this->getMain()->getRequest()->wasPosted() ) {
  50                         $this->dieUsageMsg( array( 'mustbeposted', $this->getModuleName() ) );
  51                 }
  52
  53                 $forceLinkUpdate = $params['forcelinkupdate'];
  54
  55                 $result = array();
  56                 foreach ( $params['titles'] as $t ) {
  57                         $r = array();
  58                         $title = Title::newFromText( $t );
  59                         if ( !$title instanceof Title ) {
  60                                 $r['title'] = $t;
  61                                 $r['invalid'] = '';
  62                                 $result[] = $r;
  63                                 continue;
  64                         }
  65                         ApiQueryBase::addTitleInfo( $r, $title );
  66                         if ( !$title->exists() ) {
  67                                 $r['missing'] = '';
  68                                 $result[] = $r;
  69                                 continue;
  70                         }
  71                         $context = RequestContext::getMain();
  72                         $article = MediaWiki::articleFromTitle( $title, $context );
  73                         $article->doPurge(); // Directly purge and skip the UI part of purge().
  74                         $r['purged'] = '';
  75
  76                         if( $forceLinkUpdate ) {
  77                                 if ( !$wgUser->pingLimiter() ) {
  78                                         global $wgParser, $wgEnableParserCache;
  79                                         $popts = new ParserOptions();
  80                                         $p_result = $wgParser->parse( $article->getContent(), $title, $popts );
  81
  82                                         # Update the links tables
  83                                         $u = new LinksUpdate( $title, $p_result );
  84                                         $u->doUpdate();
  85
  86                                         $r['linkupdate'] = '';
  87
  88                                         if ( $wgEnableParserCache ) {
  89                                                 $pcache = ParserCache::singleton();
  90                                                 $pcache->save( $p_result, $article, $popts );
  91                                         }
  92                                 } else {
  93                                         $this->setWarning( $this->parseMsg( array( 'actionthrottledtext' ) ) );
  94                                         $forceLinkUpdate = false;
  95                                 }
  96                         }
  97
  98                         $result[] = $r;
  99                 }
 100                 $this->getResult()->setIndexedTagName( $result, 'page' );
 101                 $this->getResult()->addValue( null, $this->getModuleName(), $result );
 102         }
 103
 104         public function isWriteMode() {
 105                 return true;
 106         }
 107
 108         public function getAllowedParams() {
 109                 return array(
 110                         'titles' => array(
 111                                 ApiBase::PARAM_ISMULTI => true,
 112                                 ApiBase::PARAM_REQUIRED => true
 113                         ),
 114                         'forcelinkupdate' => false,
 115                 );
 116         }
 117
 118         public function getParamDescription() {
 119                 return array(
 120                         'titles' => 'A list of titles',
 121                         'forcelinkupdate' => 'Update the links tables',
 122                 );
 123         }
 124
 125         public function getDescription() {
 126                 return array( 'Purge the cache for the given titles.',
 127                         'Requires a POST request if the user is not logged in.'
 128                 );
 129         }
 130
 131         public function getPossibleErrors() {
 132                 return array_merge( parent::getPossibleErrors(), array(
 133                         array( 'cantpurge' ),
 134                 ) );
 135         }
 136
 137         protected function getExamples() {
 138                 return array(
 139                         'api.php?action=purge&titles=Main_Page|API'
 140                 );
 141         }
 142
 143         public function getVersion() {
 144                 return __CLASS__ . ': $Id$';
 145         }
 146 }