maintenance/checkImages.php

   1 <?php
   2 /**
   3  * Check images to see if they exist, are readable, etc.
   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 use MediaWiki\MediaWikiServices;
  25
  26 require_once __DIR__ . '/Maintenance.php';
  27
  28 /**
  29  * Maintenance script to check images to see if they exist, are readable, etc.
  30  *
  31  * @ingroup Maintenance
  32  */
  33 class CheckImages extends Maintenance {
  34
  35         public function __construct() {
  36                 parent::__construct();
  37                 $this->addDescription( 'Check images to see if they exist, are readable, etc' );
  38                 $this->setBatchSize( 1000 );
  39         }
  40
  41         public function execute() {
  42                 $start = '';
  43                 $dbr = $this->getDB( DB_REPLICA );
  44
  45                 $numImages = 0;
  46                 $numGood = 0;
  47
  48                 $repo = MediaWikiServices::getInstance()->getRepoGroup()->getLocalRepo();
  49                 $fileQuery = LocalFile::getQueryInfo();
  50                 do {
  51                         $res = $dbr->select( $fileQuery['tables'], $fileQuery['fields'],
  52                                 [ 'img_name > ' . $dbr->addQuotes( $start ) ],
  53                                 __METHOD__, [ 'LIMIT' => $this->getBatchSize() ], $fileQuery['joins'] );
  54                         foreach ( $res as $row ) {
  55                                 $numImages++;
  56                                 $start = $row->img_name;
  57                                 $file = $repo->newFileFromRow( $row );
  58                                 $path = $file->getPath();
  59                                 if ( !$path ) {
  60                                         $this->output( "{$row->img_name}: not locally accessible\n" );
  61                                         continue;
  62                                 }
  63                                 $size = $repo->getFileSize( $file->getPath() );
  64                                 if ( $size === false ) {
  65                                         $this->output( "{$row->img_name}: missing\n" );
  66                                         continue;
  67                                 }
  68
  69                                 if ( $size == 0 && $row->img_size != 0 ) {
  70                                         $this->output( "{$row->img_name}: truncated, was {$row->img_size}\n" );
  71                                         continue;
  72                                 }
  73
  74                                 if ( $size != $row->img_size ) {
  75                                         $this->output( "{$row->img_name}: size mismatch DB={$row->img_size}, "
  76                                                 . "actual={$size}\n" );
  77                                         continue;
  78                                 }
  79
  80                                 $numGood++;
  81                         }
  82                 } while ( $res->numRows() );
  83
  84                 $this->output( "Good images: $numGood/$numImages\n" );
  85         }
  86 }
  87
  88 $maintClass = CheckImages::class;
  89 require_once RUN_MAINTENANCE_IF_MAIN;