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 /**
  29  * API interface for page purging
  30  * @ingroup API
  31  */
  32 class ApiPurge extends ApiBase {
  33
  34         public function __construct( $main, $action ) {
  35                 parent::__construct( $main, $action );
  36         }
  37
  38         /**
  39          * Purges the cache of a page
  40          */
  41         public function execute() {
  42                 $user = $this->getUser();
  43                 $params = $this->extractRequestParams();
  44                 if ( !$user->isAllowed( 'purge' ) && !$this->getMain()->isInternalMode() &&
  45                                 !$this->getRequest()->wasPosted() ) {
  46                         $this->dieUsageMsg( array( 'mustbeposted', $this->getModuleName() ) );
  47                 }
  48
  49                 $forceLinkUpdate = $params['forcelinkupdate'];
  50                 $pageSet = new ApiPageSet( $this );
  51                 $pageSet->execute();
  52
  53                 $result = array();
  54                 foreach( $pageSet->getInvalidTitles() as $title ) {
  55                         $r = array();
  56                         $r['title'] = $title;
  57                         $r['invalid'] = '';
  58                         $result[] = $r;
  59                 }
  60                 foreach( $pageSet->getMissingPageIDs() as $p ) {
  61                         $page = array();
  62                         $page['pageid'] = $p;
  63                         $page['missing'] = '';
  64                         $result[] = $page;
  65                 }
  66                 foreach( $pageSet->getMissingRevisionIDs() as $r ) {
  67                         $rev = array();
  68                         $rev['revid'] = $r;
  69                         $rev['missing'] = '';
  70                         $result[] = $rev;
  71                 }
  72
  73                 foreach ( $pageSet->getTitles() as $title ) {
  74                         $r = array();
  75
  76                         ApiQueryBase::addTitleInfo( $r, $title );
  77                         if ( !$title->exists() ) {
  78                                 $r['missing'] = '';
  79                                 $result[] = $r;
  80                                 continue;
  81                         }
  82
  83                         $page = WikiPage::factory( $title );
  84                         $page->doPurge(); // Directly purge and skip the UI part of purge().
  85                         $r['purged'] = '';
  86
  87                         if( $forceLinkUpdate ) {
  88                                 if ( !$user->pingLimiter() ) {
  89                                         global $wgParser, $wgEnableParserCache;
  90
  91                                         $popts = ParserOptions::newFromContext( $this->getContext() );
  92                                         $p_result = $wgParser->parse( $page->getRawText(), $title, $popts );
  93
  94                                         # Update the links tables
  95                                         $u = new LinksUpdate( $title, $p_result );
  96                                         $u->doUpdate();
  97
  98                                         $r['linkupdate'] = '';
  99
 100                                         if ( $wgEnableParserCache ) {
 101                                                 $pcache = ParserCache::singleton();
 102                                                 $pcache->save( $p_result, $page, $popts );
 103                                         }
 104                                 } else {
 105                                         $this->setWarning( $this->parseMsg( array( 'actionthrottledtext' ) ) );
 106                                         $forceLinkUpdate = false;
 107                                 }
 108                         }
 109
 110                         $result[] = $r;
 111                 }
 112                 $apiResult = $this->getResult();
 113                 $apiResult->setIndexedTagName( $result, 'page' );
 114                 $apiResult->addValue( null, $this->getModuleName(), $result );
 115         }
 116
 117         public function isWriteMode() {
 118                 return true;
 119         }
 120
 121         public function getAllowedParams() {
 122                 $psModule = new ApiPageSet( $this );
 123                 return $psModule->getAllowedParams() + array(
 124                         'forcelinkupdate' => false,
 125                 );
 126         }
 127
 128         public function getParamDescription() {
 129                 $psModule = new ApiPageSet( $this );
 130                 return $psModule->getParamDescription() + array(
 131                         'forcelinkupdate' => 'Update the links tables',
 132                 );
 133         }
 134
 135         public function getDescription() {
 136                 return array( 'Purge the cache for the given titles.',
 137                         'Requires a POST request if the user is not logged in.'
 138                 );
 139         }
 140
 141         public function getPossibleErrors() {
 142                 $psModule = new ApiPageSet( $this );
 143                 return array_merge(
 144                         parent::getPossibleErrors(),
 145                         array( array( 'cantpurge' ), ),
 146                         $psModule->getPossibleErrors()
 147                 );
 148         }
 149
 150         public function getExamples() {
 151                 return array(
 152                         'api.php?action=purge&titles=Main_Page|API' => 'Purge the "Main Page" and the "API" page',
 153                 );
 154         }
 155
 156         public function getHelpUrls() {
 157                 return 'https://www.mediawiki.org/wiki/API:Purge';
 158         }
 159
 160         public function getVersion() {
 161                 return __CLASS__ . ': $Id$';
 162         }
 163 }