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   1  <?php
   2  /**
   3   * Deletes all pages in the MediaWiki namespace which were last edited by
   4   * "MediaWiki default".
   5   *
   6   * This program is free software; you can redistribute it and/or modify
   7   * it under the terms of the GNU General Public License as published by
   8   * the Free Software Foundation; either version 2 of the License, or
   9   * (at your option) any later version.
  10   *
  11   * This program is distributed in the hope that it will be useful,
  12   * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14   * GNU General Public License for more details.
  15   *
  16   * You should have received a copy of the GNU General Public License along
  17   * with this program; if not, write to the Free Software Foundation, Inc.,
  18   * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19   * http://www.gnu.org/copyleft/gpl.html
  20   *
  21   * @file
  22   * @ingroup Maintenance
  23   */
  24  
  25  require_once  __DIR__ . '/Maintenance.php';
  26  
  27  /**
  28   * Maintenance script that deletes all pages in the MediaWiki namespace
  29   * which were last edited by "MediaWiki default".
  30   *
  31   * @ingroup Maintenance
  32   */
  33  class DeleteDefaultMessages extends Maintenance {
  34  	public function __construct() {
  35          parent::__construct();
  36          $this->mDescription = "Deletes all pages in the MediaWiki namespace" .
  37              " which were last edited by \"MediaWiki default\"";
  38      }
  39  
  40  	public function execute() {
  41          global $wgUser;
  42  
  43          $this->output( "Checking existence of old default messages..." );
  44          $dbr = wfGetDB( DB_SLAVE );
  45          $res = $dbr->select( array( 'page', 'revision' ),
  46              array( 'page_namespace', 'page_title' ),
  47              array(
  48                  'page_namespace' => NS_MEDIAWIKI,
  49                  'page_latest=rev_id',
  50                  'rev_user_text' => 'MediaWiki default',
  51              )
  52          );
  53  
  54          if ( $dbr->numRows( $res ) == 0 ) {
  55              # No more messages left
  56              $this->output( "done.\n" );
  57  
  58              return;
  59          }
  60  
  61          # Deletions will be made by $user temporarly added to the bot group
  62          # in order to hide it in RecentChanges.
  63          $user = User::newFromName( 'MediaWiki default' );
  64          if ( !$user ) {
  65              $this->error( "Invalid username", true );
  66          }
  67          $user->addGroup( 'bot' );
  68          $wgUser = $user;
  69  
  70          # Handle deletion
  71          $this->output( "\n...deleting old default messages (this may take a long time!)...", 'msg' );
  72          $dbw = wfGetDB( DB_MASTER );
  73  
  74          foreach ( $res as $row ) {
  75              wfWaitForSlaves();
  76              $dbw->ping();
  77              $title = Title::makeTitle( $row->page_namespace, $row->page_title );
  78              $page = WikiPage::factory( $title );
  79              $dbw->begin( __METHOD__ );
  80              $error = ''; // Passed by ref
  81              $page->doDeleteArticle( 'No longer required', false, 0, false, $error, $user );
  82              $dbw->commit( __METHOD__ );
  83          }
  84  
  85          $this->output( "done!\n", 'msg' );
  86      }
  87  }
  88  
  89  $maintClass = "DeleteDefaultMessages";
  90  require_once RUN_MAINTENANCE_IF_MAIN;