maintenance/deleteArchivedFiles.php

   1 <?php
   2
   3 /**
   4  * Delete archived (non-current) files from the database
   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  * @author Aaron Schulz
  23  * Based on deleteOldRevisions.php by Rob Church
  24  */
  25
  26 require_once( dirname(__FILE__) . '/Maintenance.php' );
  27
  28 class DeleteArchivedFiles extends Maintenance {
  29         public function __construct() {
  30                 parent::__construct();
  31                 $this->mDescription = "Deletes all archived images.";
  32                 $this->addOption( 'delete', 'Perform the deletion' );
  33                 $this->addOption( 'force', 'Force deletion of rows from filearchive' );
  34         }
  35
  36         public function execute() {
  37                 if( !$this->hasOption('delete') ) {
  38                         $this->output( "Use --delete to actually confirm this script\n" );
  39                         return;
  40                 }
  41                 $force = $this->hasOption( 'force' );
  42                 # Data should come off the master, wrapped in a transaction
  43                 $dbw = wfGetDB( DB_MASTER );
  44                 $dbw->begin();
  45                 $tbl_arch = $dbw->tableName( 'filearchive' );
  46                 $repo = RepoGroup::singleton()->getLocalRepo();
  47                 # Get "active" revisions from the filearchive table
  48                 $this->output( "Searching for and deleting archived files...\n" );
  49                 $res = $dbw->query( "SELECT fa_id,fa_storage_group,fa_storage_key FROM $tbl_arch" );
  50                 $count = 0;
  51                 foreach( $res as $row ) {
  52                         $key = $row->fa_storage_key;
  53                         $group = $row->fa_storage_group;
  54                         $id = $row->fa_id;
  55                         $path = $repo->getZonePath( 'deleted' ).'/'.$repo->getDeletedHashPath($key).$key;
  56                         $sha1 = substr( $key, 0, strcspn( $key, '.' ) );
  57                         // Check if the file is used anywhere...
  58                         $inuse = $dbw->selectField( 'oldimage', '1',
  59                                 array( 'oi_sha1' => $sha1,
  60                                 'oi_deleted & '.File::DELETED_FILE => File::DELETED_FILE ),
  61                                 __METHOD__,
  62                                 array( 'FOR UPDATE' )
  63                         );
  64                         if ( $path && file_exists($path) && !$inuse ) {
  65                                 unlink($path); // delete
  66                                 $count++;
  67                                 $dbw->query( "DELETE FROM $tbl_arch WHERE fa_id = $id" );
  68                         } else {
  69                                 $this->output( "Notice - file '$key' not found in group '$group'\n" );
  70                                 if ( $force ) {
  71                                         $this->output( "Got --force, deleting DB entry\n" );
  72                                         $dbw->query( "DELETE FROM $tbl_arch WHERE fa_id = $id" );
  73                                 }
  74                         }
  75                 }
  76                 $dbw->commit();
  77                 $this->output( "Done! [$count file(s)]\n" );
  78         }
  79 }
  80
  81 $maintClass = "DeleteArchivedFiles";
  82 require_once( DO_MAINTENANCE );