api.php

   1 <?php
   2 /**
   3  * This file is the entry point for all API queries.
   4  *
   5  * It begins by checking whether the API is enabled on this wiki; if not,
   6  * it informs the user that s/he should set $wgEnableAPI to true and exits.
   7  * Otherwise, it constructs a new ApiMain using the parameter passed to it
   8  * as an argument in the URL ('?action=') and with write-enabled set to the
   9  * value of $wgEnableWriteAPI as specified in LocalSettings.php.
  10  * It then invokes "execute()" on the ApiMain object instance, which
  11  * produces output in the format specified in the URL.
  12  *
  13  * Copyright © 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
  14  *
  15  * This program is free software; you can redistribute it and/or modify
  16  * it under the terms of the GNU General Public License as published by
  17  * the Free Software Foundation; either version 2 of the License, or
  18  * (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License along
  26  * with this program; if not, write to the Free Software Foundation, Inc.,
  27  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  28  * http://www.gnu.org/copyleft/gpl.html
  29  *
  30  * @file
  31  */
  32
  33 // So extensions (and other code) can check whether they're running in API mode
  34 define( 'MW_API', true );
  35
  36 // Bail if PHP is too low
  37 if ( !function_exists( 'version_compare' ) || version_compare( phpversion(), '5.3.2' ) < 0 ) {
  38         // We need to use dirname( __FILE__ ) here cause __DIR__ is PHP5.3+
  39         require( dirname( __FILE__ ) . '/includes/PHPVersionError.php' );
  40         wfPHPVersionError( 'api.php' );
  41 }
  42
  43 // Initialise common code.
  44 if ( isset( $_SERVER['MW_COMPILED'] ) ) {
  45         require ( 'core/includes/WebStart.php' );
  46 } else {
  47         require ( __DIR__ . '/includes/WebStart.php' );
  48 }
  49
  50 wfProfileIn( 'api.php' );
  51 $starttime = microtime( true );
  52
  53 // URL safety checks
  54 if ( !$wgRequest->checkUrlExtension() ) {
  55         return;
  56 }
  57
  58 // Verify that the API has not been disabled
  59 if ( !$wgEnableAPI ) {
  60         header( $_SERVER['SERVER_PROTOCOL'] . ' 500 MediaWiki configuration Error', true, 500 );
  61         echo( 'MediaWiki API is not enabled for this site. Add the following line to your LocalSettings.php'
  62                 . '<pre><b>$wgEnableAPI=true;</b></pre>' );
  63         die( 1 );
  64 }
  65
  66 // Set a dummy $wgTitle, because $wgTitle == null breaks various things
  67 // In a perfect world this wouldn't be necessary
  68 $wgTitle = Title::makeTitle( NS_MAIN, 'API' );
  69
  70 /* Construct an ApiMain with the arguments passed via the URL. What we get back
  71  * is some form of an ApiMain, possibly even one that produces an error message,
  72  * but we don't care here, as that is handled by the ctor.
  73  */
  74 $processor = new ApiMain( RequestContext::getMain(), $wgEnableWriteAPI );
  75
  76 // Process data & print results
  77 $processor->execute();
  78
  79 // Execute any deferred updates
  80 DeferredUpdates::doUpdates();
  81
  82 // Log what the user did, for book-keeping purposes.
  83 $endtime = microtime( true );
  84 wfProfileOut( 'api.php' );
  85 wfLogProfilingData();
  86
  87 // Log the request
  88 if ( $wgAPIRequestLog ) {
  89         $items = array(
  90                 wfTimestamp( TS_MW ),
  91                 $endtime - $starttime,
  92                 $wgRequest->getIP(),
  93                 $_SERVER['HTTP_USER_AGENT']
  94         );
  95         $items[] = $wgRequest->wasPosted() ? 'POST' : 'GET';
  96         $module = $processor->getModule();
  97         if ( $module->mustBePosted() ) {
  98                 $items[] = "action=" . $wgRequest->getVal( 'action' );
  99         } else {
 100                 $items[] = wfArrayToCgi( $wgRequest->getValues() );
 101         }
 102         wfErrorLog( implode( ',', $items ) . "\n", $wgAPIRequestLog );
 103         wfDebug( "Logged API request to $wgAPIRequestLog\n" );
 104 }
 105
 106 // Shut down the database.  foo()->bar() syntax is not supported in PHP4: we won't ever actually
 107 // get here to worry about whether this should be = or =&, but the file has to parse properly.
 108 $lb = wfGetLBFactory();
 109 $lb->shutdown();