maintenance/checkImages.php

   1 <?php
   2 /**
   3  * Check images to see if they exist, are readable, etc etc
   4  */
   5 require_once( "Maintenance.php" );
   6
   7 class CheckImages extends Maintenance {
   8
   9         public function __construct() {
  10                 parent::__construct();
  11                 $this->mDescription = "Check images to see if they exist, are readable, etc";
  12         }
  13
  14         public function execute() {
  15                 $batchSize = 1000;
  16                 $start = '';
  17                 $dbr = wfGetDB( DB_SLAVE );
  18
  19                 $numImages = 0;
  20                 $numGood = 0;
  21
  22                 do {
  23                         $res = $dbr->select( 'image', '*', array( 'img_name > ' . $dbr->addQuotes( $start ) ),
  24                                 __METHOD__, array( 'LIMIT' => $batchSize ) );
  25                         foreach ( $res as $row ) {
  26                                 $numImages++;
  27                                 $start = $row->img_name;
  28                                 $file = RepoGroup::singleton()->getLocalRepo()->newFileFromRow( $row );
  29                                 $path = $file->getPath();
  30                                 if ( !$path ) {
  31                                         $this->output( "{$row->img_name}: not locally accessible\n";
  32                                         continue;
  33                                 }
  34                                 $stat = @stat( $file->getPath() );
  35                                 if ( !$stat ) {
  36                                         $this->output( "{$row->img_name}: missing\n" );
  37                                         continue;
  38                                 }
  39
  40                                 if ( $stat['mode'] & 040000 ) {
  41                                         $this->output( "{$row->img_name}: is a directory\n" );
  42                                         continue;
  43                                 }
  44
  45                                 if ( $stat['size'] == 0 && $row->img_size != 0 ) {
  46                                         $this->output( "{$row->img_name}: truncated, was {$row->img_size}\n" );
  47                                         continue;
  48                                 }
  49
  50                                 if ( $stat['size'] != $row->img_size ) {
  51                                         $this->output( "{$row->img_name}: size mismatch DB={$row->img_size}, actual={$stat['size']}\n" );
  52                                         continue;
  53                                 }
  54
  55                                 $numGood++;
  56                         }
  57
  58                 } while ( $res->numRows() );
  59
  60                 $this->output( "Good images: $numGood/$numImages\n" );
  61         }
  62 }
  63