index.php

   1 <?php
   2
   3 /**
   4  * This is the main web entry point for MediaWiki.
   5  *
   6  * If you are reading this in your web browser, your server is probably
   7  * not configured correctly to run PHP applications!
   8  *
   9  * See the README, INSTALL, and UPGRADE files for basic setup instructions
  10  * and pointers to the online documentation.
  11  *
  12  * http://www.mediawiki.org/
  13  *
  14  * ----------
  15  *
  16  * Copyright (C) 2001-2010 Magnus Manske, Brion Vibber, Lee Daniel Crocker,
  17  * Tim Starling, Erik Möller, Gabriel Wicke, Ævar Arnfjörð Bjarmason,
  18  * Niklas Laxström, Domas Mituzas, Rob Church, Yuri Astrakhan, Aryeh Gregor,
  19  * Aaron Schulz and others.
  20  *
  21  * This program is free software; you can redistribute it and/or modify
  22  * it under the terms of the GNU General Public License as published by
  23  * the Free Software Foundation; either version 2 of the License, or
  24  * (at your option) any later version.
  25  *
  26  * This program is distributed in the hope that it will be useful,
  27  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  28  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  29  * GNU General Public License for more details.
  30  *
  31  * You should have received a copy of the GNU General Public License along
  32  * with this program; if not, write to the Free Software Foundation, Inc.,
  33  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  34  * http://www.gnu.org/copyleft/gpl.html
  35  *
  36  * @file
  37  */
  38
  39 # Initialise common code
  40 $preIP = dirname( __FILE__ );
  41 require_once( "$preIP/includes/WebStart.php" );
  42
  43 # Initialize MediaWiki base class
  44 require_once( "$preIP/includes/Wiki.php" );
  45 $mediaWiki = new MediaWiki();
  46
  47 wfProfileIn( 'main-misc-setup' );
  48 OutputPage::setEncodings(); # Not really used yet
  49
  50 $maxLag = $wgRequest->getVal( 'maxlag' );
  51 if( !is_null( $maxLag ) && !$mediaWiki->checkMaxLag( $maxLag ) ) {
  52         exit;
  53 }
  54
  55 # Query string fields
  56 $action = $wgRequest->getVal( 'action', 'view' );
  57 $title = $wgRequest->getVal( 'title' );
  58
  59 # Set title from request parameters
  60 $wgTitle = $mediaWiki->checkInitialQueries( $title, $action );
  61 if( $wgTitle === null ) {
  62         unset( $wgTitle );
  63 }
  64
  65 wfProfileOut( 'main-misc-setup' );
  66
  67 #
  68 # Send Ajax requests to the Ajax dispatcher.
  69 #
  70 if( $wgUseAjax && $action == 'ajax' ) {
  71         require_once( $IP . '/includes/AjaxDispatcher.php' );
  72         $dispatcher = new AjaxDispatcher();
  73         $dispatcher->performAction();
  74         $mediaWiki->restInPeace();
  75         exit;
  76 }
  77
  78 if( $wgUseFileCache && isset( $wgTitle ) ) {
  79         wfProfileIn( 'main-try-filecache' );
  80         // Raw pages should handle cache control on their own,
  81         // even when using file cache. This reduces hits from clients.
  82         if( $action != 'raw' && HTMLFileCache::useFileCache() ) {
  83                 /* Try low-level file cache hit */
  84                 $cache = new HTMLFileCache( $wgTitle, $action );
  85                 if( $cache->isFileCacheGood( /* Assume up to date */ ) ) {
  86                         /* Check incoming headers to see if client has this cached */
  87                         if( !$wgOut->checkLastModified( $cache->fileCacheTime() ) ) {
  88                                 $cache->loadFromFileCache();
  89                         }
  90                         # Do any stats increment/watchlist stuff
  91                         $wgArticle = MediaWiki::articleFromTitle( $wgTitle );
  92                         $wgArticle->viewUpdates();
  93                         # Tell $wgOut that output is taken care of
  94                         wfProfileOut( 'main-try-filecache' );
  95                         $mediaWiki->restInPeace();
  96                         exit;
  97                 }
  98         }
  99         wfProfileOut( 'main-try-filecache' );
 100 }
 101
 102 # Setting global variables in mediaWiki
 103 $mediaWiki->setVal( 'action', $action );
 104 $mediaWiki->setVal( 'CommandLineMode', $wgCommandLineMode );
 105 $mediaWiki->setVal( 'DisabledActions', $wgDisabledActions );
 106 $mediaWiki->setVal( 'DisableHardRedirects', $wgDisableHardRedirects );
 107 $mediaWiki->setVal( 'DisableInternalSearch', $wgDisableInternalSearch );
 108 $mediaWiki->setVal( 'EnableCreativeCommonsRdf', $wgEnableCreativeCommonsRdf );
 109 $mediaWiki->setVal( 'EnableDublinCoreRdf', $wgEnableDublinCoreRdf );
 110 $mediaWiki->setVal( 'JobRunRate', $wgJobRunRate );
 111 $mediaWiki->setVal( 'Server', $wgServer );
 112 $mediaWiki->setVal( 'SquidMaxage', $wgSquidMaxage );
 113 $mediaWiki->setVal( 'UseExternalEditor', $wgUseExternalEditor );
 114 $mediaWiki->setVal( 'UsePathInfo', $wgUsePathInfo );
 115
 116 $mediaWiki->performRequestForTitle( $wgTitle, $wgArticle, $wgOut, $wgUser, $wgRequest );
 117 $mediaWiki->finalCleanup( $wgDeferredUpdateList, $wgOut );
 118
 119 # Not sure when $wgPostCommitUpdateList gets set, so I keep this separate from finalCleanup
 120 $mediaWiki->doUpdates( $wgPostCommitUpdateList );
 121
 122 $mediaWiki->restInPeace();
 123