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  * @ingroup Maintenance
  22  */
  23
  24 require_once( dirname(__FILE__) . '/Maintenance.php' );
  25
  26 class CheckBadRedirects extends Maintenance {
  27         public function __construct() {
  28                 parent::__construct();
  29                 $this->mDescription = "Look for bad redirects";
  30         }
  31
  32         public function execute() {
  33                 $this->output( "Fetching redirects...\n" );
  34                 $dbr = wfGetDB( DB_SLAVE );
  35                 $result = $dbr->select(
  36                         array( 'page' ),
  37                         array( 'page_namespace','page_title', 'page_latest' ),
  38                         array( 'page_is_redirect' => 1 ) );
  39
  40                 $count = $result->numRows();
  41                 $this->output( "Found $count total redirects.\n" .
  42                                                 "Looking for bad redirects:\n\n" );
  43
  44                 foreach( $result as $row ) {
  45                         $title = Title::makeTitle( $row->page_namespace, $row->page_title );
  46                         $rev = Revision::newFromId( $row->page_latest );
  47                         if( $rev ) {
  48                                 $target = Title::newFromRedirect( $rev->getText() );
  49                                 if( !$target ) {
  50                                         $this->output( $title->getPrefixedText() . "\n" );
  51                                 }
  52                         }
  53                 }
  54                 $this->output( "\ndone.\n" );
  55         }
  56 }
  57
  58 $maintClass = "CheckBadRedirects";
  59 require_once( DO_MAINTENANCE );