maintenance/checkBadRedirects.php

   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->addDescription( 'Check for bad redirects' );
  35         }
  36
  37         public function execute() {
  38                 $this->output( "Fetching redirects...\n" );
  39                 $dbr = $this->getDB( DB_SLAVE );
  40                 $result = $dbr->select(
  41                         [ 'page' ],
  42                         [ 'page_namespace', 'page_title', 'page_latest' ],
  43                         [ '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;