includes/revisiondelete/RevDelFileList.php

   1 <?php
   2 /**
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16  * http://www.gnu.org/copyleft/gpl.html
  17  *
  18  * @file
  19  * @ingroup RevisionDelete
  20  */
  21
  22 use MediaWiki\MediaWikiServices;
  23 use Wikimedia\Rdbms\IDatabase;
  24
  25 /**
  26  * List for oldimage table items
  27  */
  28 class RevDelFileList extends RevDelList {
  29         /** @var array */
  30         public $storeBatch;
  31
  32         /** @var array */
  33         public $deleteBatch;
  34
  35         /** @var array */
  36         public $cleanupBatch;
  37
  38         public function getType() {
  39                 return 'oldimage';
  40         }
  41
  42         public static function getRelationType() {
  43                 return 'oi_archive_name';
  44         }
  45
  46         public static function getRestriction() {
  47                 return 'deleterevision';
  48         }
  49
  50         public static function getRevdelConstant() {
  51                 return File::DELETED_FILE;
  52         }
  53
  54         /**
  55          * @param IDatabase $db
  56          * @return mixed
  57          */
  58         public function doQuery( $db ) {
  59                 $archiveNames = [];
  60                 foreach ( $this->ids as $timestamp ) {
  61                         $archiveNames[] = $timestamp . '!' . $this->title->getDBkey();
  62                 }
  63
  64                 $oiQuery = OldLocalFile::getQueryInfo();
  65                 return $db->select(
  66                         $oiQuery['tables'],
  67                         $oiQuery['fields'],
  68                         [
  69                                 'oi_name' => $this->title->getDBkey(),
  70                                 'oi_archive_name' => $archiveNames
  71                         ],
  72                         __METHOD__,
  73                         [ 'ORDER BY' => 'oi_timestamp DESC' ],
  74                         $oiQuery['joins']
  75                 );
  76         }
  77
  78         public function newItem( $row ) {
  79                 return new RevDelFileItem( $this, $row );
  80         }
  81
  82         public function clearFileOps() {
  83                 $this->deleteBatch = [];
  84                 $this->storeBatch = [];
  85                 $this->cleanupBatch = [];
  86         }
  87
  88         public function doPreCommitUpdates() {
  89                 $status = Status::newGood();
  90                 $repo = RepoGroup::singleton()->getLocalRepo();
  91                 if ( $this->storeBatch ) {
  92                         $status->merge( $repo->storeBatch( $this->storeBatch, FileRepo::OVERWRITE_SAME ) );
  93                 }
  94                 if ( !$status->isOK() ) {
  95                         return $status;
  96                 }
  97                 if ( $this->deleteBatch ) {
  98                         $status->merge( $repo->deleteBatch( $this->deleteBatch ) );
  99                 }
 100                 if ( !$status->isOK() ) {
 101                         // Running cleanupDeletedBatch() after a failed storeBatch() with the DB already
 102                         // modified (but destined for rollback) causes data loss
 103                         return $status;
 104                 }
 105                 if ( $this->cleanupBatch ) {
 106                         $status->merge( $repo->cleanupDeletedBatch( $this->cleanupBatch ) );
 107                 }
 108
 109                 return $status;
 110         }
 111
 112         public function doPostCommitUpdates( array $visibilityChangeMap ) {
 113                 $file = MediaWikiServices::getInstance()->getRepoGroup()->getLocalRepo()
 114                         ->newFile( $this->title );
 115                 $file->purgeCache();
 116                 $file->purgeDescription();
 117
 118                 // Purge full images from cache
 119                 $purgeUrls = [];
 120                 foreach ( $this->ids as $timestamp ) {
 121                         $archiveName = $timestamp . '!' . $this->title->getDBkey();
 122                         $file->purgeOldThumbnails( $archiveName );
 123                         $purgeUrls[] = $file->getArchiveUrl( $archiveName );
 124                 }
 125                 DeferredUpdates::addUpdate(
 126                         new CdnCacheUpdate( $purgeUrls ),
 127                         DeferredUpdates::PRESEND
 128                 );
 129
 130                 return Status::newGood();
 131         }
 132
 133         public function getSuppressBit() {
 134                 return File::DELETED_RESTRICTED;
 135         }
 136 }