includes/revisiondelete/RevisionDelete.php

   1 <?php
   2 /**
   3  * Base implementations for deletable items.
   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 RevisionDelete
  22  */
  23
  24 /**
  25  * List for revision table items
  26  *
  27  * This will check both the 'revision' table for live revisions and the
  28  * 'archive' table for traditionally-deleted revisions that have an
  29  * ar_rev_id saved.
  30  *
  31  * See RevDel_RevisionItem and RevDel_ArchivedRevisionItem for items.
  32  */
  33 class RevDel_RevisionList extends RevDel_List {
  34         var $currentRevId;
  35
  36         public function getType() {
  37                 return 'revision';
  38         }
  39
  40         public static function getRelationType() {
  41                 return 'rev_id';
  42         }
  43
  44         /**
  45          * @param $db DatabaseBase
  46          * @return mixed
  47          */
  48         public function doQuery( $db ) {
  49                 $ids = array_map( 'intval', $this->ids );
  50                 $live = $db->select(
  51                         array( 'revision', 'page', 'user' ),
  52                         array_merge( Revision::selectFields(), Revision::selectUserFields() ),
  53                         array(
  54                                 'rev_page' => $this->title->getArticleID(),
  55                                 'rev_id' => $ids,
  56                         ),
  57                         __METHOD__,
  58                         array( 'ORDER BY' => 'rev_id DESC' ),
  59                         array(
  60                                 'page' => Revision::pageJoinCond(),
  61                                 'user' => Revision::userJoinCond() )
  62                 );
  63
  64                 if ( $live->numRows() >= count( $ids ) ) {
  65                         // All requested revisions are live, keeps things simple!
  66                         return $live;
  67                 }
  68
  69                 // Check if any requested revisions are available fully deleted.
  70                 $archived = $db->select( array( 'archive' ), '*',
  71                         array(
  72                                 'ar_rev_id' => $ids
  73                         ),
  74                         __METHOD__,
  75                         array( 'ORDER BY' => 'ar_rev_id DESC' )
  76                 );
  77
  78                 if ( $archived->numRows() == 0 ) {
  79                         return $live;
  80                 } elseif ( $live->numRows() == 0 ) {
  81                         return $archived;
  82                 } else {
  83                         // Combine the two! Whee
  84                         $rows = array();
  85                         foreach ( $live as $row ) {
  86                                 $rows[$row->rev_id] = $row;
  87                         }
  88                         foreach ( $archived as $row ) {
  89                                 $rows[$row->ar_rev_id] = $row;
  90                         }
  91                         krsort( $rows );
  92                         return new FakeResultWrapper( array_values( $rows ) );
  93                 }
  94         }
  95
  96         public function newItem( $row ) {
  97                 if ( isset( $row->rev_id ) ) {
  98                         return new RevDel_RevisionItem( $this, $row );
  99                 } elseif ( isset( $row->ar_rev_id ) ) {
 100                         return new RevDel_ArchivedRevisionItem( $this, $row );
 101                 } else {
 102                         // This shouldn't happen. :)
 103                         throw new MWException( 'Invalid row type in RevDel_RevisionList' );
 104                 }
 105         }
 106
 107         public function getCurrent() {
 108                 if ( is_null( $this->currentRevId ) ) {
 109                         $dbw = wfGetDB( DB_MASTER );
 110                         $this->currentRevId = $dbw->selectField(
 111                                 'page', 'page_latest', $this->title->pageCond(), __METHOD__ );
 112                 }
 113                 return $this->currentRevId;
 114         }
 115
 116         public function getSuppressBit() {
 117                 return Revision::DELETED_RESTRICTED;
 118         }
 119
 120         public function doPreCommitUpdates() {
 121                 $this->title->invalidateCache();
 122                 return Status::newGood();
 123         }
 124
 125         public function doPostCommitUpdates() {
 126                 $this->title->purgeSquid();
 127                 // Extensions that require referencing previous revisions may need this
 128                 wfRunHooks( 'ArticleRevisionVisibilitySet', array( &$this->title ) );
 129                 return Status::newGood();
 130         }
 131 }
 132
 133 /**
 134  * Item class for a live revision table row
 135  */
 136 class RevDel_RevisionItem extends RevDel_Item {
 137         var $revision;
 138
 139         public function __construct( $list, $row ) {
 140                 parent::__construct( $list, $row );
 141                 $this->revision = new Revision( $row );
 142         }
 143
 144         public function getIdField() {
 145                 return 'rev_id';
 146         }
 147
 148         public function getTimestampField() {
 149                 return 'rev_timestamp';
 150         }
 151
 152         public function getAuthorIdField() {
 153                 return 'rev_user';
 154         }
 155
 156         public function getAuthorNameField() {
 157                 return 'user_name'; // see Revision::selectUserFields()
 158         }
 159
 160         public function canView() {
 161                 return $this->revision->userCan( Revision::DELETED_RESTRICTED, $this->list->getUser() );
 162         }
 163
 164         public function canViewContent() {
 165                 return $this->revision->userCan( Revision::DELETED_TEXT, $this->list->getUser() );
 166         }
 167
 168         public function getBits() {
 169                 return $this->revision->getVisibility();
 170         }
 171
 172         public function setBits( $bits ) {
 173                 $dbw = wfGetDB( DB_MASTER );
 174                 // Update revision table
 175                 $dbw->update( 'revision',
 176                         array( 'rev_deleted' => $bits ),
 177                         array(
 178                                 'rev_id' => $this->revision->getId(),
 179                                 'rev_page' => $this->revision->getPage(),
 180                                 'rev_deleted' => $this->getBits()
 181                         ),
 182                         __METHOD__
 183                 );
 184                 if ( !$dbw->affectedRows() ) {
 185                         // Concurrent fail!
 186                         return false;
 187                 }
 188                 // Update recentchanges table
 189                 $dbw->update( 'recentchanges',
 190                         array(
 191                                 'rc_deleted' => $bits,
 192                                 'rc_patrolled' => 1
 193                         ),
 194                         array(
 195                                 'rc_this_oldid' => $this->revision->getId(), // condition
 196                                 // non-unique timestamp index
 197                                 'rc_timestamp' => $dbw->timestamp( $this->revision->getTimestamp() ),
 198                         ),
 199                         __METHOD__
 200                 );
 201                 return true;
 202         }
 203
 204         public function isDeleted() {
 205                 return $this->revision->isDeleted( Revision::DELETED_TEXT );
 206         }
 207
 208         public function isHideCurrentOp( $newBits ) {
 209                 return ( $newBits & Revision::DELETED_TEXT )
 210                         && $this->list->getCurrent() == $this->getId();
 211         }
 212
 213         /**
 214          * Get the HTML link to the revision text.
 215          * Overridden by RevDel_ArchiveItem.
 216          * @return string
 217          */
 218         protected function getRevisionLink() {
 219                 $date = htmlspecialchars( $this->list->getLanguage()->userTimeAndDate(
 220                         $this->revision->getTimestamp(), $this->list->getUser() ) );
 221
 222                 if ( $this->isDeleted() && !$this->canViewContent() ) {
 223                         return $date;
 224                 }
 225                 return Linker::linkKnown(
 226                         $this->list->title,
 227                         $date,
 228                         array(),
 229                         array(
 230                                 'oldid' => $this->revision->getId(),
 231                                 'unhide' => 1
 232                         )
 233                 );
 234         }
 235
 236         /**
 237          * Get the HTML link to the diff.
 238          * Overridden by RevDel_ArchiveItem
 239          * @return string
 240          */
 241         protected function getDiffLink() {
 242                 if ( $this->isDeleted() && !$this->canViewContent() ) {
 243                         return $this->list->msg( 'diff' )->escaped();
 244                 } else {
 245                         return Linker::linkKnown(
 246                                         $this->list->title,
 247                                         $this->list->msg( 'diff' )->escaped(),
 248                                         array(),
 249                                         array(
 250                                                 'diff' => $this->revision->getId(),
 251                                                 'oldid' => 'prev',
 252                                                 'unhide' => 1
 253                                         )
 254                                 );
 255                 }
 256         }
 257
 258         public function getHTML() {
 259                 $difflink = $this->list->msg( 'parentheses' )
 260                         ->rawParams( $this->getDiffLink() )->escaped();
 261                 $revlink = $this->getRevisionLink();
 262                 $userlink = Linker::revUserLink( $this->revision );
 263                 $comment = Linker::revComment( $this->revision );
 264                 if ( $this->isDeleted() ) {
 265                         $revlink = "<span class=\"history-deleted\">$revlink</span>";
 266                 }
 267                 return "<li>$difflink $revlink $userlink $comment</li>";
 268         }
 269 }
 270
 271 /**
 272  * List for archive table items, i.e. revisions deleted via action=delete
 273  */
 274 class RevDel_ArchiveList extends RevDel_RevisionList {
 275         public function getType() {
 276                 return 'archive';
 277         }
 278
 279         public static function getRelationType() {
 280                 return 'ar_timestamp';
 281         }
 282
 283         /**
 284          * @param $db DatabaseBase
 285          * @return mixed
 286          */
 287         public function doQuery( $db ) {
 288                 $timestamps = array();
 289                 foreach ( $this->ids as $id ) {
 290                         $timestamps[] = $db->timestamp( $id );
 291                 }
 292                 return $db->select( 'archive', '*',
 293                                 array(
 294                                         'ar_namespace' => $this->title->getNamespace(),
 295                                         'ar_title' => $this->title->getDBkey(),
 296                                         'ar_timestamp' => $timestamps
 297                                 ),
 298                                 __METHOD__,
 299                                 array( 'ORDER BY' => 'ar_timestamp DESC' )
 300                         );
 301         }
 302
 303         public function newItem( $row ) {
 304                 return new RevDel_ArchiveItem( $this, $row );
 305         }
 306
 307         public function doPreCommitUpdates() {
 308                 return Status::newGood();
 309         }
 310
 311         public function doPostCommitUpdates() {
 312                 return Status::newGood();
 313         }
 314 }
 315
 316 /**
 317  * Item class for a archive table row
 318  */
 319 class RevDel_ArchiveItem extends RevDel_RevisionItem {
 320         public function __construct( $list, $row ) {
 321                 RevDel_Item::__construct( $list, $row );
 322                 $this->revision = Revision::newFromArchiveRow( $row,
 323                         array( 'page' => $this->list->title->getArticleID() ) );
 324         }
 325
 326         public function getIdField() {
 327                 return 'ar_timestamp';
 328         }
 329
 330         public function getTimestampField() {
 331                 return 'ar_timestamp';
 332         }
 333
 334         public function getAuthorIdField() {
 335                 return 'ar_user';
 336         }
 337
 338         public function getAuthorNameField() {
 339                 return 'ar_user_text';
 340         }
 341
 342         public function getId() {
 343                 # Convert DB timestamp to MW timestamp
 344                 return $this->revision->getTimestamp();
 345         }
 346
 347         public function setBits( $bits ) {
 348                 $dbw = wfGetDB( DB_MASTER );
 349                 $dbw->update( 'archive',
 350                         array( 'ar_deleted' => $bits ),
 351                         array(
 352                                 'ar_namespace' => $this->list->title->getNamespace(),
 353                                 'ar_title' => $this->list->title->getDBkey(),
 354                                 // use timestamp for index
 355                                 'ar_timestamp' => $this->row->ar_timestamp,
 356                                 'ar_rev_id' => $this->row->ar_rev_id,
 357                                 'ar_deleted' => $this->getBits()
 358                         ),
 359                         __METHOD__ );
 360                 return (bool)$dbw->affectedRows();
 361         }
 362
 363         protected function getRevisionLink() {
 364                 $date = htmlspecialchars( $this->list->getLanguage()->userTimeAndDate(
 365                         $this->revision->getTimestamp(), $this->list->getUser() ) );
 366
 367                 if ( $this->isDeleted() && !$this->canViewContent() ) {
 368                         return $date;
 369                 }
 370
 371                 return Linker::link(
 372                         SpecialPage::getTitleFor( 'Undelete' ),
 373                         $date,
 374                         array(),
 375                         array(
 376                                 'target' => $this->list->title->getPrefixedText(),
 377                                 'timestamp' => $this->revision->getTimestamp()
 378                         )
 379                 );
 380         }
 381
 382         protected function getDiffLink() {
 383                 if ( $this->isDeleted() && !$this->canViewContent() ) {
 384                         return $this->list->msg( 'diff' )->escaped();
 385                 }
 386
 387                 return Linker::link(
 388                         SpecialPage::getTitleFor( 'Undelete' ),
 389                         $this->list->msg( 'diff' )->escaped(),
 390                         array(),
 391                         array(
 392                                 'target' => $this->list->title->getPrefixedText(),
 393                                 'diff' => 'prev',
 394                                 'timestamp' => $this->revision->getTimestamp()
 395                         )
 396                 );
 397         }
 398 }
 399
 400 /**
 401  * Item class for a archive table row by ar_rev_id -- actually
 402  * used via RevDel_RevisionList.
 403  */
 404 class RevDel_ArchivedRevisionItem extends RevDel_ArchiveItem {
 405         public function __construct( $list, $row ) {
 406                 RevDel_Item::__construct( $list, $row );
 407
 408                 $this->revision = Revision::newFromArchiveRow( $row,
 409                         array( 'page' => $this->list->title->getArticleID() ) );
 410         }
 411
 412         public function getIdField() {
 413                 return 'ar_rev_id';
 414         }
 415
 416         public function getId() {
 417                 return $this->revision->getId();
 418         }
 419
 420         public function setBits( $bits ) {
 421                 $dbw = wfGetDB( DB_MASTER );
 422                 $dbw->update( 'archive',
 423                         array( 'ar_deleted' => $bits ),
 424                         array( 'ar_rev_id' => $this->row->ar_rev_id,
 425                                 'ar_deleted' => $this->getBits()
 426                         ),
 427                         __METHOD__ );
 428                 return (bool)$dbw->affectedRows();
 429         }
 430 }
 431
 432 /**
 433  * List for oldimage table items
 434  */
 435 class RevDel_FileList extends RevDel_List {
 436         public function getType() {
 437                 return 'oldimage';
 438         }
 439
 440         public static function getRelationType() {
 441                 return 'oi_archive_name';
 442         }
 443
 444         var $storeBatch, $deleteBatch, $cleanupBatch;
 445
 446         /**
 447          * @param $db DatabaseBase
 448          * @return mixed
 449          */
 450         public function doQuery( $db ) {
 451                 $archiveNames = array();
 452                 foreach ( $this->ids as $timestamp ) {
 453                         $archiveNames[] = $timestamp . '!' . $this->title->getDBkey();
 454                 }
 455                 return $db->select(
 456                         'oldimage',
 457                         OldLocalFile::selectFields(),
 458                         array(
 459                                 'oi_name' => $this->title->getDBkey(),
 460                                 'oi_archive_name' => $archiveNames
 461                         ),
 462                         __METHOD__,
 463                         array( 'ORDER BY' => 'oi_timestamp DESC' )
 464                 );
 465         }
 466
 467         public function newItem( $row ) {
 468                 return new RevDel_FileItem( $this, $row );
 469         }
 470
 471         public function clearFileOps() {
 472                 $this->deleteBatch = array();
 473                 $this->storeBatch = array();
 474                 $this->cleanupBatch = array();
 475         }
 476
 477         public function doPreCommitUpdates() {
 478                 $status = Status::newGood();
 479                 $repo = RepoGroup::singleton()->getLocalRepo();
 480                 if ( $this->storeBatch ) {
 481                         $status->merge( $repo->storeBatch( $this->storeBatch, FileRepo::OVERWRITE_SAME ) );
 482                 }
 483                 if ( !$status->isOK() ) {
 484                         return $status;
 485                 }
 486                 if ( $this->deleteBatch ) {
 487                         $status->merge( $repo->deleteBatch( $this->deleteBatch ) );
 488                 }
 489                 if ( !$status->isOK() ) {
 490                         // Running cleanupDeletedBatch() after a failed storeBatch() with the DB already
 491                         // modified (but destined for rollback) causes data loss
 492                         return $status;
 493                 }
 494                 if ( $this->cleanupBatch ) {
 495                         $status->merge( $repo->cleanupDeletedBatch( $this->cleanupBatch ) );
 496                 }
 497                 return $status;
 498         }
 499
 500         public function doPostCommitUpdates() {
 501                 $file = wfLocalFile( $this->title );
 502                 $file->purgeCache();
 503                 $file->purgeDescription();
 504                 foreach ( $this->ids as $timestamp ) {
 505                         $file->purgeOldThumbnails( $timestamp . '!' . $this->title->getDBkey() );
 506                 }
 507                 return Status::newGood();
 508         }
 509
 510         public function getSuppressBit() {
 511                 return File::DELETED_RESTRICTED;
 512         }
 513 }
 514
 515 /**
 516  * Item class for an oldimage table row
 517  */
 518 class RevDel_FileItem extends RevDel_Item {
 519
 520         /**
 521          * @var File
 522          */
 523         var $file;
 524
 525         public function __construct( $list, $row ) {
 526                 parent::__construct( $list, $row );
 527                 $this->file = RepoGroup::singleton()->getLocalRepo()->newFileFromRow( $row );
 528         }
 529
 530         public function getIdField() {
 531                 return 'oi_archive_name';
 532         }
 533
 534         public function getTimestampField() {
 535                 return 'oi_timestamp';
 536         }
 537
 538         public function getAuthorIdField() {
 539                 return 'oi_user';
 540         }
 541
 542         public function getAuthorNameField() {
 543                 return 'oi_user_text';
 544         }
 545
 546         public function getId() {
 547                 $parts = explode( '!', $this->row->oi_archive_name );
 548                 return $parts[0];
 549         }
 550
 551         public function canView() {
 552                 return $this->file->userCan( File::DELETED_RESTRICTED, $this->list->getUser() );
 553         }
 554
 555         public function canViewContent() {
 556                 return $this->file->userCan( File::DELETED_FILE, $this->list->getUser() );
 557         }
 558
 559         public function getBits() {
 560                 return $this->file->getVisibility();
 561         }
 562
 563         public function setBits( $bits ) {
 564                 # Queue the file op
 565                 # @todo FIXME: Move to LocalFile.php
 566                 if ( $this->isDeleted() ) {
 567                         if ( $bits & File::DELETED_FILE ) {
 568                                 # Still deleted
 569                         } else {
 570                                 # Newly undeleted
 571                                 $key = $this->file->getStorageKey();
 572                                 $srcRel = $this->file->repo->getDeletedHashPath( $key ) . $key;
 573                                 $this->list->storeBatch[] = array(
 574                                         $this->file->repo->getVirtualUrl( 'deleted' ) . '/' . $srcRel,
 575                                         'public',
 576                                         $this->file->getRel()
 577                                 );
 578                                 $this->list->cleanupBatch[] = $key;
 579                         }
 580                 } elseif ( $bits & File::DELETED_FILE ) {
 581                         # Newly deleted
 582                         $key = $this->file->getStorageKey();
 583                         $dstRel = $this->file->repo->getDeletedHashPath( $key ) . $key;
 584                         $this->list->deleteBatch[] = array( $this->file->getRel(), $dstRel );
 585                 }
 586
 587                 # Do the database operations
 588                 $dbw = wfGetDB( DB_MASTER );
 589                 $dbw->update( 'oldimage',
 590                         array( 'oi_deleted' => $bits ),
 591                         array(
 592                                 'oi_name' => $this->row->oi_name,
 593                                 'oi_timestamp' => $this->row->oi_timestamp,
 594                                 'oi_deleted' => $this->getBits()
 595                         ),
 596                         __METHOD__
 597                 );
 598                 return (bool)$dbw->affectedRows();
 599         }
 600
 601         public function isDeleted() {
 602                 return $this->file->isDeleted( File::DELETED_FILE );
 603         }
 604
 605         /**
 606          * Get the link to the file.
 607          * Overridden by RevDel_ArchivedFileItem.
 608          * @return string
 609          */
 610         protected function getLink() {
 611                 $date = htmlspecialchars( $this->list->getLanguage()->userTimeAndDate(
 612                         $this->file->getTimestamp(), $this->list->getUser() ) );
 613
 614                 if ( !$this->isDeleted() ) {
 615                         # Regular files...
 616                         return Html::rawElement( 'a', array( 'href' => $this->file->getUrl() ), $date );
 617                 }
 618
 619                 # Hidden files...
 620                 if ( !$this->canViewContent() ) {
 621                         $link = $date;
 622                 } else {
 623                         $link = Linker::link(
 624                                 SpecialPage::getTitleFor( 'Revisiondelete' ),
 625                                 $date,
 626                                 array(),
 627                                 array(
 628                                         'target' => $this->list->title->getPrefixedText(),
 629                                         'file' => $this->file->getArchiveName(),
 630                                         'token' => $this->list->getUser()->getEditToken(
 631                                                 $this->file->getArchiveName() )
 632                                 )
 633                         );
 634                 }
 635                 return '<span class="history-deleted">' . $link . '</span>';
 636         }
 637         /**
 638          * Generate a user tool link cluster if the current user is allowed to view it
 639          * @return string HTML
 640          */
 641         protected function getUserTools() {
 642                 if ( $this->file->userCan( Revision::DELETED_USER, $this->list->getUser() ) ) {
 643                         $link = Linker::userLink( $this->file->user, $this->file->user_text ) .
 644                                 Linker::userToolLinks( $this->file->user, $this->file->user_text );
 645                 } else {
 646                         $link = $this->list->msg( 'rev-deleted-user' )->escaped();
 647                 }
 648                 if ( $this->file->isDeleted( Revision::DELETED_USER ) ) {
 649                         return '<span class="history-deleted">' . $link . '</span>';
 650                 }
 651                 return $link;
 652         }
 653
 654         /**
 655          * Wrap and format the file's comment block, if the current
 656          * user is allowed to view it.
 657          *
 658          * @return string HTML
 659          */
 660         protected function getComment() {
 661                 if ( $this->file->userCan( File::DELETED_COMMENT, $this->list->getUser() ) ) {
 662                         $block = Linker::commentBlock( $this->file->description );
 663                 } else {
 664                         $block = ' ' . $this->list->msg( 'rev-deleted-comment' )->escaped();
 665                 }
 666                 if ( $this->file->isDeleted( File::DELETED_COMMENT ) ) {
 667                         return "<span class=\"history-deleted\">$block</span>";
 668                 }
 669                 return $block;
 670         }
 671
 672         public function getHTML() {
 673                 $data =
 674                         $this->list->msg( 'widthheight' )->numParams(
 675                                 $this->file->getWidth(), $this->file->getHeight() )->text() .
 676                         ' (' . $this->list->msg( 'nbytes' )->numParams( $this->file->getSize() )->text() . ')';
 677
 678                 return '<li>' . $this->getLink() . ' ' . $this->getUserTools() . ' ' .
 679                         $data . ' ' . $this->getComment() . '</li>';
 680         }
 681 }
 682
 683 /**
 684  * List for filearchive table items
 685  */
 686 class RevDel_ArchivedFileList extends RevDel_FileList {
 687         public function getType() {
 688                 return 'filearchive';
 689         }
 690
 691         public static function getRelationType() {
 692                 return 'fa_id';
 693         }
 694
 695         /**
 696          * @param $db DatabaseBase
 697          * @return mixed
 698          */
 699         public function doQuery( $db ) {
 700                 $ids = array_map( 'intval', $this->ids );
 701                 return $db->select(
 702                         'filearchive',
 703                         ArchivedFile::selectFields(),
 704                         array(
 705                                 'fa_name' => $this->title->getDBkey(),
 706                                 'fa_id' => $ids
 707                         ),
 708                         __METHOD__,
 709                         array( 'ORDER BY' => 'fa_id DESC' )
 710                 );
 711         }
 712
 713         public function newItem( $row ) {
 714                 return new RevDel_ArchivedFileItem( $this, $row );
 715         }
 716 }
 717
 718 /**
 719  * Item class for a filearchive table row
 720  */
 721 class RevDel_ArchivedFileItem extends RevDel_FileItem {
 722         public function __construct( $list, $row ) {
 723                 RevDel_Item::__construct( $list, $row );
 724                 $this->file = ArchivedFile::newFromRow( $row );
 725         }
 726
 727         public function getIdField() {
 728                 return 'fa_id';
 729         }
 730
 731         public function getTimestampField() {
 732                 return 'fa_timestamp';
 733         }
 734
 735         public function getAuthorIdField() {
 736                 return 'fa_user';
 737         }
 738
 739         public function getAuthorNameField() {
 740                 return 'fa_user_text';
 741         }
 742
 743         public function getId() {
 744                 return $this->row->fa_id;
 745         }
 746
 747         public function setBits( $bits ) {
 748                 $dbw = wfGetDB( DB_MASTER );
 749                 $dbw->update( 'filearchive',
 750                         array( 'fa_deleted' => $bits ),
 751                         array(
 752                                 'fa_id' => $this->row->fa_id,
 753                                 'fa_deleted' => $this->getBits(),
 754                         ),
 755                         __METHOD__
 756                 );
 757                 return (bool)$dbw->affectedRows();
 758         }
 759
 760         protected function getLink() {
 761                 $date = htmlspecialchars( $this->list->getLanguage()->userTimeAndDate(
 762                         $this->file->getTimestamp(), $this->list->getUser() ) );
 763
 764                 # Hidden files...
 765                 if ( !$this->canViewContent() ) {
 766                         $link = $date;
 767                 } else {
 768                         $undelete = SpecialPage::getTitleFor( 'Undelete' );
 769                         $key = $this->file->getKey();
 770                         $link = Linker::link( $undelete, $date, array(),
 771                                 array(
 772                                         'target' => $this->list->title->getPrefixedText(),
 773                                         'file' => $key,
 774                                         'token' => $this->list->getUser()->getEditToken( $key )
 775                                 )
 776                         );
 777                 }
 778                 if ( $this->isDeleted() ) {
 779                         $link = '<span class="history-deleted">' . $link . '</span>';
 780                 }
 781                 return $link;
 782         }
 783 }
 784
 785 /**
 786  * List for logging table items
 787  */
 788 class RevDel_LogList extends RevDel_List {
 789         public function getType() {
 790                 return 'logging';
 791         }
 792
 793         public static function getRelationType() {
 794                 return 'log_id';
 795         }
 796
 797         /**
 798          * @param $db DatabaseBase
 799          * @return mixed
 800          */
 801         public function doQuery( $db ) {
 802                 $ids = array_map( 'intval', $this->ids );
 803                 return $db->select( 'logging', '*',
 804                         array( 'log_id' => $ids ),
 805                         __METHOD__,
 806                         array( 'ORDER BY' => 'log_id DESC' )
 807                 );
 808         }
 809
 810         public function newItem( $row ) {
 811                 return new RevDel_LogItem( $this, $row );
 812         }
 813
 814         public function getSuppressBit() {
 815                 return Revision::DELETED_RESTRICTED;
 816         }
 817
 818         public function getLogAction() {
 819                 return 'event';
 820         }
 821
 822         public function getLogParams( $params ) {
 823                 return array(
 824                         implode( ',', $params['ids'] ),
 825                         "ofield={$params['oldBits']}",
 826                         "nfield={$params['newBits']}"
 827                 );
 828         }
 829 }
 830
 831 /**
 832  * Item class for a logging table row
 833  */
 834 class RevDel_LogItem extends RevDel_Item {
 835         public function getIdField() {
 836                 return 'log_id';
 837         }
 838
 839         public function getTimestampField() {
 840                 return 'log_timestamp';
 841         }
 842
 843         public function getAuthorIdField() {
 844                 return 'log_user';
 845         }
 846
 847         public function getAuthorNameField() {
 848                 return 'log_user_text';
 849         }
 850
 851         public function canView() {
 852                 return LogEventsList::userCan( $this->row, Revision::DELETED_RESTRICTED, $this->list->getUser() );
 853         }
 854
 855         public function canViewContent() {
 856                 return true; // none
 857         }
 858
 859         public function getBits() {
 860                 return $this->row->log_deleted;
 861         }
 862
 863         public function setBits( $bits ) {
 864                 $dbw = wfGetDB( DB_MASTER );
 865                 $dbw->update( 'recentchanges',
 866                         array(
 867                                 'rc_deleted' => $bits,
 868                                 'rc_patrolled' => 1
 869                         ),
 870                         array(
 871                                 'rc_logid' => $this->row->log_id,
 872                                 'rc_timestamp' => $this->row->log_timestamp // index
 873                         ),
 874                         __METHOD__
 875                 );
 876                 $dbw->update( 'logging',
 877                         array( 'log_deleted' => $bits ),
 878                         array(
 879                                 'log_id' => $this->row->log_id,
 880                                 'log_deleted' => $this->getBits()
 881                         ),
 882                         __METHOD__
 883                 );
 884                 return (bool)$dbw->affectedRows();
 885         }
 886
 887         public function getHTML() {
 888                 $date = htmlspecialchars( $this->list->getLanguage()->userTimeAndDate(
 889                         $this->row->log_timestamp, $this->list->getUser() ) );
 890                 $title = Title::makeTitle( $this->row->log_namespace, $this->row->log_title );
 891                 $formatter = LogFormatter::newFromRow( $this->row );
 892                 $formatter->setContext( $this->list->getContext() );
 893                 $formatter->setAudience( LogFormatter::FOR_THIS_USER );
 894
 895                 // Log link for this page
 896                 $loglink = Linker::link(
 897                         SpecialPage::getTitleFor( 'Log' ),
 898                         $this->list->msg( 'log' )->escaped(),
 899                         array(),
 900                         array( 'page' => $title->getPrefixedText() )
 901                 );
 902                 $loglink = $this->list->msg( 'parentheses' )->rawParams( $loglink )->escaped();
 903                 // User links and action text
 904                 $action = $formatter->getActionText();
 905                 // Comment
 906                 $comment = $this->list->getLanguage()->getDirMark() . Linker::commentBlock( $this->row->log_comment );
 907                 if ( LogEventsList::isDeleted( $this->row, LogPage::DELETED_COMMENT ) ) {
 908                         $comment = '<span class="history-deleted">' . $comment . '</span>';
 909                 }
 910
 911                 return "<li>$loglink $date $action $comment</li>";
 912         }
 913 }