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 /**
  23  * List for oldimage table items
  24  */
  25 class RevDelFileList extends RevDelList {
  26         /** @var array */
  27         public $storeBatch;
  28
  29         /** @var array */
  30         public $deleteBatch;
  31
  32         /** @var array */
  33         public $cleanupBatch;
  34
  35         public function getType() {
  36                 return 'oldimage';
  37         }
  38
  39         public static function getRelationType() {
  40                 return 'oi_archive_name';
  41         }
  42
  43         public static function getRestriction() {
  44                 return 'deleterevision';
  45         }
  46
  47         public static function getRevdelConstant() {
  48                 return File::DELETED_FILE;
  49         }
  50
  51         /**
  52          * @param IDatabase $db
  53          * @return mixed
  54          */
  55         public function doQuery( $db ) {
  56                 $archiveNames = [];
  57                 foreach ( $this->ids as $timestamp ) {
  58                         $archiveNames[] = $timestamp . '!' . $this->title->getDBkey();
  59                 }
  60
  61                 return $db->select(
  62                         'oldimage',
  63                         OldLocalFile::selectFields(),
  64                         [
  65                                 'oi_name' => $this->title->getDBkey(),
  66                                 'oi_archive_name' => $archiveNames
  67                         ],
  68                         __METHOD__,
  69                         [ 'ORDER BY' => 'oi_timestamp DESC' ]
  70                 );
  71         }
  72
  73         public function newItem( $row ) {
  74                 return new RevDelFileItem( $this, $row );
  75         }
  76
  77         public function clearFileOps() {
  78                 $this->deleteBatch = [];
  79                 $this->storeBatch = [];
  80                 $this->cleanupBatch = [];
  81         }
  82
  83         public function doPreCommitUpdates() {
  84                 $status = Status::newGood();
  85                 $repo = RepoGroup::singleton()->getLocalRepo();
  86                 if ( $this->storeBatch ) {
  87                         $status->merge( $repo->storeBatch( $this->storeBatch, FileRepo::OVERWRITE_SAME ) );
  88                 }
  89                 if ( !$status->isOK() ) {
  90                         return $status;
  91                 }
  92                 if ( $this->deleteBatch ) {
  93                         $status->merge( $repo->deleteBatch( $this->deleteBatch ) );
  94                 }
  95                 if ( !$status->isOK() ) {
  96                         // Running cleanupDeletedBatch() after a failed storeBatch() with the DB already
  97                         // modified (but destined for rollback) causes data loss
  98                         return $status;
  99                 }
 100                 if ( $this->cleanupBatch ) {
 101                         $status->merge( $repo->cleanupDeletedBatch( $this->cleanupBatch ) );
 102                 }
 103
 104                 return $status;
 105         }
 106
 107         public function doPostCommitUpdates() {
 108                 $file = wfLocalFile( $this->title );
 109                 $file->purgeCache();
 110                 $file->purgeDescription();
 111
 112                 // Purge full images from cache
 113                 $purgeUrls = [];
 114                 foreach ( $this->ids as $timestamp ) {
 115                         $archiveName = $timestamp . '!' . $this->title->getDBkey();
 116                         $file->purgeOldThumbnails( $archiveName );
 117                         $purgeUrls[] = $file->getArchiveUrl( $archiveName );
 118                 }
 119                 DeferredUpdates::addUpdate(
 120                         new CdnCacheUpdate( $purgeUrls ),
 121                         DeferredUpdates::PRESEND
 122                 );
 123
 124                 return Status::newGood();
 125         }
 126
 127         public function getSuppressBit() {
 128                 return File::DELETED_RESTRICTED;
 129         }
 130 }