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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.
# Protect against register_globals
# This must be done before any globals are set by the code
if ( ini_get( 'register_globals' ) ) {
if ( isset( $_REQUEST['GLOBALS'] ) ) {
die( '<a href="http://www.hardened-php.net/index.76.html">$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.x 500 Internal Server Error" );
echo "register_globals security paranoia: trying to overwrite superglobals, aborting.";
die( -1 );
}
unset( $GLOBALS[$name] );
}
}
$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.
# Also doesn't break installations using symlinked includes, like
# dirname( __FILE__ ) would do.
$IP = getenv( 'MW_INSTALL_PATH' );
if ( $IP === false ) {
$IP = realpath( '.' );
}
# Start profiler
if( file_exists("$IP/StartProfiler.php") ) {
require_once( "$IP/StartProfiler.php" );
} else {
require_once( "$IP/includes/ProfilerStub.php" );
}
wfProfileIn( 'WebStart.php-conf' );
# Load up some global defines.
require_once( "$IP/includes/Defines.php" );
# Check for PHP 5
if ( !function_exists( 'version_compare' )
|| version_compare( phpversion(), '5.0.0' ) < 0
) {
define( 'MW_PHP4', '1' );
require( "$IP/includes/DefaultSettings.php" );
require( "$IP/includes/templates/PHP4.php" );
exit;
}
# Test for PHP bug which breaks PHP 5.0.x on 64-bit...
# As of 1.8 this breaks lots of common operations instead
# of just some rare ones like export.
$borked = str_replace( 'a', 'b', array( -1 => -1 ) );
if( !isset( $borked[-1] ) ) {
echo "PHP 5.0.x is buggy on your 64-bit system; you must upgrade to PHP 5.1.x\n" .
"or higher. ABORTING. (http://bugs.php.net/bug.php?id=34879 for details)\n";
exit;
}
# Start the autoloader, so that extensions can derive classes from core files
require_once( "$IP/includes/AutoLoader.php" );
if ( defined( 'MW_CONFIG_CALLBACK' ) ) {
# Use a callback function to configure MediaWiki
require_once( "$IP/includes/DefaultSettings.php" );
call_user_func( MW_CONFIG_CALLBACK );
} else {
# LocalSettings.php is the per site customization file. If it does not exit
# the wiki installer need to be launched or the generated file moved from
# ./config/ to ./
if( !file_exists( "$IP/LocalSettings.php" ) ) {
require_once( "$IP/includes/DefaultSettings.php" ); # used for printing the version
require_once( "$IP/includes/templates/NoLocalSettings.php" );
die();
}
# Include site settings. $IP may be changed (hopefully before the AutoLoader is invoked)
require_once( "$IP/LocalSettings.php" );
}
wfProfileOut( 'WebStart.php-conf' );
wfProfileIn( 'WebStart.php-ob_start' );
# Initialise output buffering
if ( ob_get_level() ) {
# Someone's been mixing configuration data with code!
# How annoying.
} elseif ( !defined( 'MW_NO_OUTPUT_BUFFER' ) ) {
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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