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 require_once __DIR__ . '/Maintenance.php';
  24
  25 /**
  26  * Maintenance script to check images to see if they exist, are readable, etc.
  27  *
  28  * @ingroup Maintenance
  29  */
  30 class CheckImages extends Maintenance {
  31
  32         public function __construct() {
  33                 parent::__construct();
  34                 $this->mDescription = "Check images to see if they exist, are readable, etc";
  35                 $this->setBatchSize( 1000 );
  36         }
  37
  38         public function execute() {
  39                 $start = '';
  40                 $dbr = wfGetDB( DB_SLAVE );
  41
  42                 $numImages = 0;
  43                 $numGood = 0;
  44
  45                 do {
  46                         $res = $dbr->select( 'image', '*', array( 'img_name > ' . $dbr->addQuotes( $start ) ),
  47                                 __METHOD__, array( 'LIMIT' => $this->mBatchSize ) );
  48                         foreach ( $res as $row ) {
  49                                 $numImages++;
  50                                 $start = $row->img_name;
  51                                 $file = RepoGroup::singleton()->getLocalRepo()->newFileFromRow( $row );
  52                                 $path = $file->getPath();
  53                                 if ( !$path ) {
  54                                         $this->output( "{$row->img_name}: not locally accessible\n" );
  55                                         continue;
  56                                 }
  57                                 wfSuppressWarnings();
  58                                 $stat = stat( $file->getPath() );
  59                                 wfRestoreWarnings();
  60                                 if ( !$stat ) {
  61                                         $this->output( "{$row->img_name}: missing\n" );
  62                                         continue;
  63                                 }
  64
  65                                 if ( $stat['mode'] & 040000 ) {
  66                                         $this->output( "{$row->img_name}: is a directory\n" );
  67                                         continue;
  68                                 }
  69
  70                                 if ( $stat['size'] == 0 && $row->img_size != 0 ) {
  71                                         $this->output( "{$row->img_name}: truncated, was {$row->img_size}\n" );
  72                                         continue;
  73                                 }
  74
  75                                 if ( $stat['size'] != $row->img_size ) {
  76                                         $this->output( "{$row->img_name}: size mismatch DB={$row->img_size}, "
  77                                                 . "actual={$stat['size']}\n" );
  78                                         continue;
  79                                 }
  80
  81                                 $numGood++;
  82                         }
  83                 } while ( $res->numRows() );
  84
  85                 $this->output( "Good images: $numGood/$numImages\n" );
  86         }
  87 }
  88
  89 $maintClass = "CheckImages";
  90 require_once RUN_MAINTENANCE_IF_MAIN;