maintenance/checkBadRedirects.php

   1 <?php
   2 /**
   3  * CheckBadRedirects - See if pages marked as being redirects
   4  * really are.
   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( dirname( __FILE__ ) . '/Maintenance.php' );
  26
  27 class CheckBadRedirects extends Maintenance {
  28         public function __construct() {
  29                 parent::__construct();
  30                 $this->mDescription = "Check for bad redirects";
  31         }
  32
  33         public function execute() {
  34                 $this->output( "Fetching redirects...\n" );
  35                 $dbr = wfGetDB( DB_SLAVE );
  36                 $result = $dbr->select(
  37                         array( 'page' ),
  38                         array( 'page_namespace', 'page_title', 'page_latest' ),
  39                         array( 'page_is_redirect' => 1 ) );
  40
  41                 $count = $result->numRows();
  42                 $this->output( "Found $count redirects.\n" .
  43                                                 "Checking for bad redirects:\n\n" );
  44
  45                 foreach ( $result as $row ) {
  46                         $title = Title::makeTitle( $row->page_namespace, $row->page_title );
  47                         $rev = Revision::newFromId( $row->page_latest );
  48                         if ( $rev ) {
  49                                 $target = Title::newFromRedirect( $rev->getText() );
  50                                 if ( !$target ) {
  51                                         $this->output( $title->getPrefixedText() . "\n" );
  52                                 }
  53                         }
  54                 }
  55                 $this->output( "\nDone.\n" );
  56         }
  57 }
  58
  59 $maintClass = "CheckBadRedirects";
  60 require_once( RUN_MAINTENANCE_IF_MAIN );