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<?php
/**
* This does the initial setup for a web request.
* It does some security checks, starts the profiler and loads the
* configuration, and optionally loads Setup.php depending on whether
* MW_NO_SETUP is defined.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
# Protect against register_globals
# This must be done before any globals are set by the code
if ( ini_get( 'register_globals' ) ) {
if ( isset( $_REQUEST['GLOBALS'] ) || isset( $_FILES['GLOBALS'] ) ) {
die( '<a href="http://www.hardened-php.net/globals-problem">$GLOBALS overwrite vulnerability</a>' );
}
$verboten = array(
'GLOBALS',
'_SERVER',
'HTTP_SERVER_VARS',
'_GET',
'HTTP_GET_VARS',
'_POST',
'HTTP_POST_VARS',
'_COOKIE',
'HTTP_COOKIE_VARS',
'_FILES',
'HTTP_POST_FILES',
'_ENV',
'HTTP_ENV_VARS',
'_REQUEST',
'_SESSION',
'HTTP_SESSION_VARS'
);
foreach ( $_REQUEST as $name => $value ) {
if ( in_array( $name, $verboten ) ) {
header( "HTTP/1.1 500 Internal Server Error" );
echo "register_globals security paranoia: trying to overwrite superglobals, aborting.";
die( -1 );
}
unset( $GLOBALS[$name] );
}
}
# bug 15461: Make IE8 turn off content sniffing. Everybody else should ignore this
# We're adding it here so that it's *always* set, even for alternate entry
# points and when $wgOut gets disabled or overridden.
header( 'X-Content-Type-Options: nosniff' );
$wgRequestTime = microtime( true );
# getrusage() does not exist on the Microsoft Windows platforms, catching this
if ( function_exists ( 'getrusage' ) ) {
$wgRUstart = getrusage();
} else {
$wgRUstart = array();
}
unset( $IP );
# Valid web server entry point, enable includes.
# Please don't move this line to includes/Defines.php. This line essentially
# defines a valid entry point. If you put it in includes/Defines.php, then
# any script that includes it becomes an entry point, thereby defeating
# its purpose.
define( 'MEDIAWIKI', true );
# Full path to working directory.
# Makes it possible to for example to have effective exclude path in apc.
# __DIR__ breaks symlinked includes, but realpath() returns false
# if we don't have permissions on parent directories.
$IP = getenv( 'MW_INSTALL_PATH' );
if ( $IP === false ) {
if ( realpath( '.' ) ) {
$IP = realpath( '.' );
} else {
$IP = dirname( __DIR__ );
}
}
# Start the autoloader, so that extensions can derive classes from core files
require_once "$IP/includes/AutoLoader.php";
# Load the profiler
require_once "$IP/includes/profiler/Profiler.php";
# Load up some global defines.
require_once "$IP/includes/Defines.php";
# Start the profiler
$wgProfiler = array();
if ( file_exists( "$IP/StartProfiler.php" ) ) {
require "$IP/StartProfiler.php";
}
wfProfileIn( 'WebStart.php-conf' );
# Load default settings
require_once "$IP/includes/DefaultSettings.php";
# Load composer's autoloader if present
if ( is_readable( "$IP/vendor/autoload.php" ) ) {
require_once "$IP/vendor/autoload.php";
}
if ( defined( 'MW_CONFIG_CALLBACK' ) ) {
# Use a callback function to configure MediaWiki
call_user_func( MW_CONFIG_CALLBACK );
} else {
if ( !defined( 'MW_CONFIG_FILE' ) ) {
define( 'MW_CONFIG_FILE', "$IP/LocalSettings.php" );
}
# LocalSettings.php is the per site customization file. If it does not exist
# the wiki installer needs to be launched or the generated file uploaded to
# the root wiki directory
if ( !file_exists( MW_CONFIG_FILE ) ) {
require_once "$IP/includes/templates/NoLocalSettings.php";
die();
}
# Include site settings. $IP may be changed (hopefully before the AutoLoader is invoked)
require_once MW_CONFIG_FILE;
}
wfProfileOut( 'WebStart.php-conf' );
wfProfileIn( 'WebStart.php-ob_start' );
# Initialise output buffering
# Check that there is no previous output or previously set up buffers, because
# that would cause us to potentially mix gzip and non-gzip output, creating a
# big mess.
if ( !defined( 'MW_NO_OUTPUT_BUFFER' ) && ob_get_level() == 0 ) {
require_once "$IP/includes/OutputHandler.php";
ob_start( 'wfOutputHandler' );
}
wfProfileOut( 'WebStart.php-ob_start' );
if ( !defined( 'MW_NO_SETUP' ) ) {
require_once "$IP/includes/Setup.php";
}
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