load.php

<?php
/**
 * This file is the entry point for the resource loader.
 *
 * 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
 * @author Roan Kattouw
 * @author Trevor Parscal
 *
 */

// Bail if PHP is too low
if ( !function_exists( 'version_compare' ) || version_compare( phpversion(), '5.2.3' ) < 0 ) {
	require( dirname( __FILE__ ) . '/includes/PHPVersionError.php' );
	wfPHPVersionError( 'load.php' );
}

if ( isset( $_SERVER['MW_COMPILED'] ) ) {
	require ( 'phase3/includes/WebStart.php' );
} else {
	require ( dirname( __FILE__ ) . '/includes/WebStart.php' );
}

// Construct a tag for newrelic -- wgRequest is global in this scope
if( function_exists( 'newrelic_name_transaction' ) ) {
	if ( function_exists( 'newrelic_disable_autorum') ) {
		newrelic_disable_autorum();
	}
	if (is_object($wgRequest)) {
		$sharedWiki = (preg_match("/^slot[0-9]\$/",$wgDBname) || $wgDBname == 'devbox') ? "shared" : "local";
		$only = $wgRequest->getVal( 'only', 'full' );
		$modules = ResourceLoaderContext::expandModuleNames( $wgRequest->getVal( 'modules' ) );
		if ( count( $modules ) > 2 ) {
			$modules = count($modules) . '/' . $modules[0];
		} else {
			$modules = count($modules) . '/' . implode( ',', $modules );
		}
		newrelic_name_transaction( "/load/$sharedWiki/$only/$modules" );
		if ( function_exists( 'newrelic_add_custom_parameter' ) ) {
			newrelic_add_custom_parameter( 'skin', $wgRequest->getVal( 'skin' ) );
			newrelic_add_custom_parameter( 'lang', $wgRequest->getVal( 'lang' ) );
		}
        }
}


wfProfileIn( 'load.php' );

// URL safety checks
if ( !$wgRequest->checkUrlExtension() ) {
	return;
}

// Respond to resource loading request
$resourceLoader = new ResourceLoader();
$resourceLoader->respond( new ResourceLoaderContext( $resourceLoader, $wgRequest ) );

wfProfileOut( 'load.php' );
wfLogProfilingData();

// Shut down the database.  foo()->bar() syntax is not supported in PHP4, and this file
// needs to *parse* in PHP4, although we'll never get down here to worry about = vs =&
$lb = wfGetLBFactory();
$lb->shutdown();