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 $mediaWiki = new MediaWiki();
  45
  46 wfProfileIn( 'main-misc-setup' );
  47
  48 $maxLag = $wgRequest->getVal( 'maxlag' );
  49 if( !is_null( $maxLag ) && !$mediaWiki->checkMaxLag( $maxLag ) ) {
  50         exit;
  51 }
  52
  53 # Query string fields
  54 $action = $wgRequest->getVal( 'action', 'view' );
  55 $title = $wgRequest->getVal( 'title' );
  56
  57 # Set title from request parameters
  58 $wgTitle = $mediaWiki->checkInitialQueries( $title, $action );
  59
  60 wfProfileOut( 'main-misc-setup' );
  61
  62 # Send Ajax requests to the Ajax dispatcher.
  63 if( $wgUseAjax && $action == 'ajax' ) {
  64         $dispatcher = new AjaxDispatcher();
  65         $dispatcher->performAction();
  66         $mediaWiki->restInPeace();
  67         exit;
  68 }
  69
  70 if( $wgUseFileCache && $wgTitle !== null ) {
  71         wfProfileIn( 'main-try-filecache' );
  72         // Raw pages should handle cache control on their own,
  73         // even when using file cache. This reduces hits from clients.
  74         if( $action != 'raw' && HTMLFileCache::useFileCache() ) {
  75                 /* Try low-level file cache hit */
  76                 $cache = new HTMLFileCache( $wgTitle, $action );
  77                 if( $cache->isFileCacheGood( /* Assume up to date */ ) ) {
  78                         /* Check incoming headers to see if client has this cached */
  79                         if( !$wgOut->checkLastModified( $cache->fileCacheTime() ) ) {
  80                                 $cache->loadFromFileCache();
  81                         }
  82                         # Do any stats increment/watchlist stuff
  83                         $wgArticle = MediaWiki::articleFromTitle( $wgTitle );
  84                         $wgArticle->viewUpdates();
  85                         # Tell $wgOut that output is taken care of
  86                         $wgOut->disable();
  87                         wfProfileOut( 'main-try-filecache' );
  88                         $mediaWiki->finalCleanup( $wgOut );
  89                         $mediaWiki->restInPeace();
  90                         exit;
  91                 }
  92         }
  93         wfProfileOut( 'main-try-filecache' );
  94 }
  95
  96 # Setting global variables in mediaWiki
  97 $mediaWiki->setVal( 'action', $action );
  98 $mediaWiki->setVal( 'DisabledActions', $wgDisabledActions );
  99 $mediaWiki->setVal( 'DisableHardRedirects', $wgDisableHardRedirects );
 100 $mediaWiki->setVal( 'EnableCreativeCommonsRdf', $wgEnableCreativeCommonsRdf );
 101 $mediaWiki->setVal( 'EnableDublinCoreRdf', $wgEnableDublinCoreRdf );
 102 $mediaWiki->setVal( 'Server', $wgServer );
 103 $mediaWiki->setVal( 'SquidMaxage', $wgSquidMaxage );
 104 $mediaWiki->setVal( 'UseExternalEditor', $wgUseExternalEditor );
 105 $mediaWiki->setVal( 'UsePathInfo', $wgUsePathInfo );
 106
 107 $mediaWiki->performRequestForTitle( $wgTitle, $wgArticle, $wgOut, $wgUser, $wgRequest );
 108 $mediaWiki->finalCleanup( $wgOut );
 109 $mediaWiki->restInPeace();