load.php

   1 <?php
   2 /**
   3  * This file is the entry point for the resource loader.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @author Roan Kattouw
  22  * @author Trevor Parscal
  23  *
  24  */
  25
  26 // We want error messages to not be interpreted as CSS or JS
  27 function wfDie( $msg = '' ) {
  28         header( $_SERVER['SERVER_PROTOCOL'] . ' 500 MediaWiki configuration Error', true, 500 );
  29         echo "/* $msg */";
  30         die( 1 );
  31 }
  32
  33 // Load global constants, including MW_VERSION and MW_MIN_PHP_VERSION
  34 require_once( dirname( __FILE__ ) . '/includes/Defines.php' );
  35
  36 // Die on unsupported PHP versions
  37 if( !function_exists( 'version_compare' ) || version_compare( phpversion(), MW_MIN_PHP_VERSION ) < 0 ){
  38         $version = htmlspecialchars( MW_VERSION );
  39         $phpversion = htmlspecialchars( MW_MIN_PHP_VERSION );
  40         wfDie( "MediaWiki $version requires at least PHP version $phpversion." );
  41 }
  42
  43 require ( dirname( __FILE__ ) . '/includes/WebStart.php' );
  44 wfProfileIn( 'load.php' );
  45
  46 // URL safety checks
  47 //
  48 // See RawPage.php for details; summary is that MSIE can override the
  49 // Content-Type if it sees a recognized extension on the URL, such as
  50 // might be appended via PATH_INFO after 'load.php'.
  51 //
  52 // Some resources can contain HTML-like strings (e.g. in messages)
  53 // which will end up triggering HTML detection and execution.
  54 //
  55 if ( $wgRequest->isPathInfoBad() ) {
  56         wfHttpError( 403, 'Forbidden',
  57                 'Invalid file extension found in PATH_INFO or QUERY_STRING.' );
  58         return;
  59 }
  60
  61 // Respond to resource loading request
  62 $resourceLoader = new ResourceLoader();
  63 $resourceLoader->respond( new ResourceLoaderContext( $resourceLoader, $wgRequest ) );
  64
  65 wfProfileOut( 'load.php' );
  66 wfLogProfilingData();
  67
  68 // Shut down the database.  foo()->bar() syntax is not supported in PHP4, and this file
  69 // needs to *parse* in PHP4, although we'll never get down here to worry about = vs =&
  70 $lb = wfGetLBFactory();
  71 $lb->shutdown();