07efbeb8ae
* Refactored the IE script entry point security check into WebRequest::isPathInfoBad(). Use the standard CGI variable PATH_INFO to do this check instead of the various potential non-standard solutions. Made the check fairly permissive to avoid a repeat of bug 13049 due to broken CGI setups especially with cgi.fix_pathinfo=0. This should theoretically be very portable and secure, but I have not tested it widely. * Removed Chris Wrinn from the credits since his patch was wrong and has been removed. * Made the error message more informative.
110 lines
3.9 KiB
PHP
110 lines
3.9 KiB
PHP
<?php
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/**
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* API for MediaWiki 1.8+
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*
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* Copyright (C) 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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*/
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/**
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* This file is the entry point for all API queries. It begins by checking
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* whether the API is enabled on this wiki; if not, it informs the user that
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* s/he should set $wgEnableAPI to true and exits. Otherwise, it constructs
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* a new ApiMain using the parameter passed to it as an argument in the URL
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* ('?action=') and with write-enabled set to the value of $wgEnableWriteAPI
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* as specified in LocalSettings.php. It then invokes "execute()" on the
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* ApiMain object instance, which produces output in the format sepecified
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* in the URL.
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*/
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// Initialise common code
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require (dirname(__FILE__) . '/includes/WebStart.php');
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wfProfileIn('api.php');
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// URL safety checks
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//
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// See RawPage.php for details; summary is that MSIE can override the
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// Content-Type if it sees a recognized extension on the URL, such as
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// might be appended via PATH_INFO after 'api.php'.
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//
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// Some data formats can end up containing unfiltered user-provided data
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// which will end up triggering HTML detection and execution, hence
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// XSS injection and all that entails.
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//
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if( $wgRequest->isPathInfoBad() ) {
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wfHttpError( 403, 'Forbidden',
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'Invalid file extension found in PATH_INFO. ' .
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'The API must be accessed through the primary script entry point.' );
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return;
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}
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// Verify that the API has not been disabled
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if (!$wgEnableAPI) {
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echo 'MediaWiki API is not enabled for this site. Add the following line to your LocalSettings.php';
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echo '<pre><b>$wgEnableAPI=true;</b></pre>';
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die(1);
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}
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// Selectively allow cross-site AJAX
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if ( $wgCrossSiteAJAXdomains && isset($_SERVER['HTTP_ORIGIN']) ) {
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if ( $wgCrossSiteAJAXdomains == '*' ) {
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header( "Access-Control-Allow-Origin: {$_SERVER['HTTP_ORIGIN']}" );
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header( 'Access-Control-Allow-Credentials: true' );
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} elseif ( $wgCrossSiteAJAXdomainsRegex ) {
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foreach ( $wgCrossSiteAJAXdomains as $regex ) {
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if ( preg_match( $regex, $_SERVER['HTTP_ORIGIN'] ) ) {
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header( "Access-Control-Allow-Origin: {$_SERVER['HTTP_ORIGIN']}" );
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header( 'Access-Control-Allow-Credentials: true' );
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break;
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}
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}
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} elseif ( in_array( $_SERVER['HTTP_ORIGIN'], $wgCrossSiteAJAXdomains ) ) {
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header( "Access-Control-Allow-Origin: {$_SERVER['HTTP_ORIGIN']}" );
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header( 'Access-Control-Allow-Credentials: true' );
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}
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}
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// So extensions can check whether they're running in API mode
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define('MW_API', true);
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// Set a dummy $wgTitle, because $wgTitle == null breaks various things
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// In a perfect world this wouldn't be necessary
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$wgTitle = Title::newFromText('API');
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/* Construct an ApiMain with the arguments passed via the URL. What we get back
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* is some form of an ApiMain, possibly even one that produces an error message,
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* but we don't care here, as that is handled by the ctor.
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*/
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$processor = new ApiMain($wgRequest, $wgEnableWriteAPI);
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// Process data & print results
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$processor->execute();
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// Execute any deferred updates
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wfDoUpdates();
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// Log what the user did, for book-keeping purposes.
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wfProfileOut('api.php');
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wfLogProfilingData();
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// Shut down the database
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wfGetLBFactory()->shutdown();
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