maintenance/eraseArchivedFile.php

   1 <?php
   2 /**
   3  * Delete archived (non-current) files from storage
   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  * @author Aaron Schulz
  23  */
  24
  25 require_once( __DIR__ . '/Maintenance.php' );
  26
  27 /**
  28  * Maintenance script to delete archived (non-current) files from storage.
  29  *
  30  * @TODO: Maybe add some simple logging
  31  *
  32  * @ingroup Maintenance
  33  * @since 1.22
  34  */
  35 class EraseArchivedFile extends Maintenance {
  36         public function __construct() {
  37                 parent::__construct();
  38                 $this->mDescription = "Erases traces of deleted files.";
  39                 $this->addOption( 'delete', 'Perform the deletion' );
  40                 $this->addOption( 'filename', 'File name', false, true );
  41                 $this->addOption( 'filekey', 'File storage key (with extension) or "*"', true, true );
  42         }
  43
  44         public function execute() {
  45                 if ( !$this->hasOption( 'delete' ) ) {
  46                         $this->output( "Use --delete to actually confirm this script\n" );
  47                 }
  48
  49                 $filekey = $this->getOption( 'filekey' );
  50                 $filename = $this->getOption( 'filename' );
  51
  52                 if ( $filekey === '*' ) { // all versions by name
  53                         if ( !strlen( $filename ) ) {
  54                                 $this->error( "Missing --filename parameter.", 1 );
  55                         }
  56                         $afile = false;
  57                 } else { // specified version
  58                         $dbw = wfGetDB( DB_MASTER );
  59                         $row = $dbw->selectRow( 'filearchive', '*',
  60                                 array( 'fa_storage_group' => 'deleted', 'fa_storage_key' => $filekey ),
  61                                 __METHOD__ );
  62                         if ( !$row ) {
  63                                 $this->error( "No deleted file exists with key '$filekey'.", 1 );
  64                         }
  65                         $filename = $row->fa_name;
  66                         $afile = ArchivedFile::newFromRow( $row );
  67                 }
  68
  69                 $file = wfLocalFile( $filename );
  70                 if ( $file->exists() ) {
  71                         $this->error( "File '$filename' is still a public file, use the delete form.\n", 1 );
  72                 }
  73
  74                 $this->output( "Purging all thumbnails for file '$filename'..." );
  75                 $file->purgeCache();
  76                 $file->purgeHistory();
  77                 $this->output( "done.\n" );
  78
  79                 if ( $afile instanceof ArchivedFile ) {
  80                         $this->scrubVersion( $afile );
  81                 } else {
  82                         $this->output( "Finding deleted versions of file '$filename'...\n" );
  83                         $this->scrubAllVersions( $filename );
  84                         $this->output( "Done\n" );
  85                 }
  86         }
  87
  88         protected function scrubAllVersions( $name ) {
  89                 $dbw = wfGetDB( DB_MASTER );
  90                 $res = $dbw->select( 'filearchive', '*',
  91                         array( 'fa_name' => $name, 'fa_storage_group' => 'deleted' ),
  92                         __METHOD__ );
  93                 foreach ( $res as $row ) {
  94                         $this->scrubVersion( ArchivedFile::newFromRow( $row ) );
  95                 }
  96         }
  97
  98         protected function scrubVersion( ArchivedFile $archivedFile ) {
  99                 $key = $archivedFile->getStorageKey();
 100                 $name = $archivedFile->getName();
 101                 $ts = $archivedFile->getTimestamp();
 102                 $repo = RepoGroup::singleton()->getLocalRepo();
 103                 $path = $repo->getZonePath( 'deleted' ) . '/' . $repo->getDeletedHashPath( $key ) . $key;
 104                 if ( $this->hasOption( 'delete' ) ) {
 105                         $status = $repo->getBackend()->delete( array( 'src' => $path ) );
 106                         if ( $status->isOK() ) {
 107                                 $this->output( "Deleted version '$key' ($ts) of file '$name'\n" );
 108                         } else {
 109                                 $this->output( "Failed to delete version '$key' ($ts) of file '$name'\n" );
 110                                 $this->output( print_r( $status->getErrorsArray(), true ) );
 111                         }
 112                 } else {
 113                         $this->output( "Would delete version '{$key}' ({$ts}) of file '$name'\n" );
 114                 }
 115         }
 116 }
 117
 118 $maintClass = "EraseArchivedFile";
 119 require_once( RUN_MAINTENANCE_IF_MAIN );