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   1  <?php
   2  /**
   3   * Check that pages marked as being redirects really are.
   4   *
   5   * This program is free software; you can redistribute it and/or modify
   6   * it under the terms of the GNU General Public License as published by
   7   * the Free Software Foundation; either version 2 of the License, or
   8   * (at your option) any later version.
   9   *
  10   * This program is distributed in the hope that it will be useful,
  11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13   * GNU General Public License for more details.
  14   *
  15   * You should have received a copy of the GNU General Public License along
  16   * with this program; if not, write to the Free Software Foundation, Inc.,
  17   * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18   * http://www.gnu.org/copyleft/gpl.html
  19   *
  20   * @file
  21   * @ingroup Maintenance
  22   */
  23  
  24  require_once  __DIR__ . '/Maintenance.php';
  25  
  26  /**
  27   * Maintenance script to check that pages marked as being redirects really are.
  28   *
  29   * @ingroup Maintenance
  30   */
  31  class CheckBadRedirects extends Maintenance {
  32  	public function __construct() {
  33          parent::__construct();
  34          $this->mDescription = "Check for bad redirects";
  35      }
  36  
  37  	public function execute() {
  38          $this->output( "Fetching redirects...\n" );
  39          $dbr = wfGetDB( DB_SLAVE );
  40          $result = $dbr->select(
  41              array( 'page' ),
  42              array( 'page_namespace', 'page_title', 'page_latest' ),
  43              array( 'page_is_redirect' => 1 ) );
  44  
  45          $count = $result->numRows();
  46          $this->output( "Found $count redirects.\n" .
  47              "Checking for bad redirects:\n\n" );
  48  
  49          foreach ( $result as $row ) {
  50              $title = Title::makeTitle( $row->page_namespace, $row->page_title );
  51              $rev = Revision::newFromId( $row->page_latest );
  52              if ( $rev ) {
  53                  $target = $rev->getContent()->getRedirectTarget();
  54                  if ( !$target ) {
  55                      $this->output( $title->getPrefixedText() . "\n" );
  56                  }
  57              }
  58          }
  59          $this->output( "\nDone.\n" );
  60      }
  61  }
  62  
  63  $maintClass = "CheckBadRedirects";
  64  require_once RUN_MAINTENANCE_IF_MAIN;