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 Wikimedia\Rdbms\IDatabase;
  23
  24 /**
  25  * List for oldimage table items
  26  */
  27 class RevDelFileList extends RevDelList {
  28         /** @var array */
  29         public $storeBatch;
  30
  31         /** @var array */
  32         public $deleteBatch;
  33
  34         /** @var array */
  35         public $cleanupBatch;
  36
  37         public function getType() {
  38                 return 'oldimage';
  39         }
  40
  41         public static function getRelationType() {
  42                 return 'oi_archive_name';
  43         }
  44
  45         public static function getRestriction() {
  46                 return 'deleterevision';
  47         }
  48
  49         public static function getRevdelConstant() {
  50                 return File::DELETED_FILE;
  51         }
  52
  53         /**
  54          * @param IDatabase $db
  55          * @return mixed
  56          */
  57         public function doQuery( $db ) {
  58                 $archiveNames = [];
  59                 foreach ( $this->ids as $timestamp ) {
  60                         $archiveNames[] = $timestamp . '!' . $this->title->getDBkey();
  61                 }
  62
  63                 return $db->select(
  64                         'oldimage',
  65                         OldLocalFile::selectFields(),
  66                         [
  67                                 'oi_name' => $this->title->getDBkey(),
  68                                 'oi_archive_name' => $archiveNames
  69                         ],
  70                         __METHOD__,
  71                         [ 'ORDER BY' => 'oi_timestamp DESC' ]
  72                 );
  73         }
  74
  75         public function newItem( $row ) {
  76                 return new RevDelFileItem( $this, $row );
  77         }
  78
  79         public function clearFileOps() {
  80                 $this->deleteBatch = [];
  81                 $this->storeBatch = [];
  82                 $this->cleanupBatch = [];
  83         }
  84
  85         public function doPreCommitUpdates() {
  86                 $status = Status::newGood();
  87                 $repo = RepoGroup::singleton()->getLocalRepo();
  88                 if ( $this->storeBatch ) {
  89                         $status->merge( $repo->storeBatch( $this->storeBatch, FileRepo::OVERWRITE_SAME ) );
  90                 }
  91                 if ( !$status->isOK() ) {
  92                         return $status;
  93                 }
  94                 if ( $this->deleteBatch ) {
  95                         $status->merge( $repo->deleteBatch( $this->deleteBatch ) );
  96                 }
  97                 if ( !$status->isOK() ) {
  98                         // Running cleanupDeletedBatch() after a failed storeBatch() with the DB already
  99                         // modified (but destined for rollback) causes data loss
 100                         return $status;
 101                 }
 102                 if ( $this->cleanupBatch ) {
 103                         $status->merge( $repo->cleanupDeletedBatch( $this->cleanupBatch ) );
 104                 }
 105
 106                 return $status;
 107         }
 108
 109         public function doPostCommitUpdates( array $visibilityChangeMap ) {
 110                 $file = wfLocalFile( $this->title );
 111                 $file->purgeCache();
 112                 $file->purgeDescription();
 113
 114                 // Purge full images from cache
 115                 $purgeUrls = [];
 116                 foreach ( $this->ids as $timestamp ) {
 117                         $archiveName = $timestamp . '!' . $this->title->getDBkey();
 118                         $file->purgeOldThumbnails( $archiveName );
 119                         $purgeUrls[] = $file->getArchiveUrl( $archiveName );
 120                 }
 121                 DeferredUpdates::addUpdate(
 122                         new CdnCacheUpdate( $purgeUrls ),
 123                         DeferredUpdates::PRESEND
 124                 );
 125
 126                 return Status::newGood();
 127         }
 128
 129         public function getSuppressBit() {
 130                 return File::DELETED_RESTRICTED;
 131         }
 132 }