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   1  <?php
   2  /**
   3   * This program is free software; you can redistribute it and/or modify
   4   * it under the terms of the GNU General Public License as published by
   5   * the Free Software Foundation; either version 2 of the License, or
   6   * (at your option) any later version.
   7   *
   8   * @file
   9   * @ingroup Extensions
  10   * @version 3.0
  11   * @author Stephanie Amanda Stevens <[email protected]>
  12   * @author Robin Pepermans (SPQRobin) <[email protected]>
  13   * @author Jack Phoenix <[email protected]>
  14   * @author Calimonius the Estrange <[email protected]>
  15   * @copyright Copyright © 2005-2007 Stephanie Amanda Stevens
  16   * @copyright Copyright © 2007-2011 Robin Pepermans (SPQRobin)
  17   * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
  18   * @link http://www.mediawiki.org/wiki/Extension:SpecialInterwiki Documentation
  19   * Formatting improvements Stephen Kennedy, 2006.
  20   */
  21  
  22  if ( !defined( 'MEDIAWIKI' ) ) {
  23      die( "This is not a valid entry point.\n" );
  24  }
  25  
  26  // Set this value to true in LocalSettings.php if you will not use this
  27  // extension to actually change any interwiki table entries. It will suppress
  28  // the addition of a log for interwiki link changes.
  29  $wgInterwikiViewOnly = false;
  30  
  31  // Name of a database where global interwikis will be stored.
  32  $wgInterwikiCentralDB = null;
  33  
  34  // Extension credits for Special:Version
  35  $wgExtensionCredits['specialpage'][] = array(
  36      'path' => __FILE__,
  37      'name' => 'Interwiki',
  38      'author' => array(
  39          'Stephanie Amanda Stevens',
  40          'Alexandre Emsenhuber',
  41          'Robin Pepermans',
  42          'Siebrand Mazeland',
  43          'Platonides',
  44          'Raimond Spekking',
  45          'Sam Reed',
  46          'Jack Phoenix',
  47          'Calimonius the Estrange',
  48          '...'
  49      ),
  50      'version' => '3.0 20140719',
  51      'url' => 'https://www.mediawiki.org/wiki/Extension:Interwiki',
  52      'descriptionmsg' => 'interwiki-desc',
  53  );
  54  
  55  $wgExtensionFunctions[] = 'setupInterwikiExtension';
  56  
  57  $wgResourceModules['ext.interwiki.specialpage'] = array(
  58      'styles' => 'Interwiki.css',
  59      'localBasePath' => dirname( __FILE__ ),
  60      'remoteExtPath' => 'Interwiki',
  61      'dependencies' => array(
  62          'jquery.makeCollapsible',
  63      ),
  64  );
  65  
  66  // Set up the new special page
  67  $dir = dirname( __FILE__ ) . '/';
  68  $wgMessagesDirs['Interwiki'] = __DIR__ . '/i18n';
  69  $wgExtensionMessagesFiles['Interwiki'] = $dir . 'Interwiki.i18n.php';
  70  $wgExtensionMessagesFiles['InterwikiAlias'] = $dir . 'Interwiki.alias.php';
  71  $wgAutoloadClasses['SpecialInterwiki'] = $dir . 'Interwiki_body.php';
  72  $wgAutoloadClasses['InterwikiLogFormatter'] = $dir . 'Interwiki_body.php';
  73  $wgSpecialPages['Interwiki'] = 'SpecialInterwiki';
  74  $wgSpecialPageGroups['Interwiki'] = 'wiki';
  75  
  76  $wgHooks['InterwikiLoadPrefix'][] = 'wfGlobalInterwikis';
  77  
  78  
  79  function setupInterwikiExtension() {
  80      global $wgInterwikiViewOnly;
  81  
  82      if ( $wgInterwikiViewOnly === false ) {
  83          global $wgAvailableRights, $wgLogTypes, $wgLogActionsHandlers;
  84  
  85          // New user right, required to modify the interwiki table through Special:Interwiki
  86          $wgAvailableRights[] = 'interwiki';
  87  
  88          // Set up the new log type - interwiki actions are logged to this new log
  89          $wgLogTypes[] = 'interwiki';
  90          // interwiki, iw_add, iw_delete, iw_edit
  91          $wgLogActionsHandlers['interwiki/*'] = 'InterwikiLogFormatter';
  92      }
  93  
  94      return true;
  95  }
  96  
  97  function wfGlobalInterwikis( $prefix, &$iwData ) {
  98      global $wgInterwikiCentralDB;
  99      // docs/hooks.txt says: Return true without providing an interwiki to continue interwiki search.
 100      if ( $wgInterwikiCentralDB === null || $wgInterwikiCentralDB === wfWikiId() ) {
 101          // No global set or this is global, nothing to add
 102          return true;
 103      }
 104      if ( !Language::fetchLanguageName( $prefix ) ) {
 105          // Check if prefix exists locally and skip
 106          foreach ( Interwiki::getAllPrefixes( null ) as $id => $localPrefixInfo ) {
 107              if ( $prefix === $localPrefixInfo['iw_prefix'] ) {
 108                  return true;
 109              }
 110          }
 111          $dbr = wfGetDB( DB_SLAVE, array(), $wgInterwikiCentralDB );
 112          $res = $dbr->selectRow(
 113              'interwiki',
 114              '*',
 115              array( 'iw_prefix' => $prefix ),
 116              __METHOD__
 117          );
 118          if ( !$res ) {
 119              return true;
 120          }
 121          // Excplicitly make this an array since it's expected to be one
 122          $iwData = (array)$res;
 123          // At this point, we can safely return false because we know that we have something
 124          return false;
 125      }
 126      return true;
 127  }