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 = $this->list->getLanguage()->userTimeAndDate(
 220                         $this->revision->getTimestamp(), $this->list->getUser() );
 221                 if ( $this->isDeleted() && !$this->canViewContent() ) {
 222                         return $date;
 223                 }
 224                 return Linker::link(
 225                         $this->list->title,
 226                         $date,
 227                         array(),
 228                         array(
 229                                 'oldid' => $this->revision->getId(),
 230                                 'unhide' => 1
 231                         )
 232                 );
 233         }
 234
 235         /**
 236          * Get the HTML link to the diff.
 237          * Overridden by RevDel_ArchiveItem
 238          * @return string
 239          */
 240         protected function getDiffLink() {
 241                 if ( $this->isDeleted() && !$this->canViewContent() ) {
 242                         return $this->list->msg( 'diff' )->escaped();
 243                 } else {
 244                         return
 245                                 Linker::link(
 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                                         array(
 255                                                 'known',
 256                                                 'noclasses'
 257                                         )
 258                                 );
 259                 }
 260         }
 261
 262         public function getHTML() {
 263                 $difflink = $this->list->msg( 'parentheses' )
 264                         ->rawParams( $this->getDiffLink() )->escaped();
 265                 $revlink = $this->getRevisionLink();
 266                 $userlink = Linker::revUserLink( $this->revision );
 267                 $comment = Linker::revComment( $this->revision );
 268                 if ( $this->isDeleted() ) {
 269                         $revlink = "<span class=\"history-deleted\">$revlink</span>";
 270                 }
 271                 return "<li>$difflink $revlink $userlink $comment</li>";
 272         }
 273 }
 274
 275 /**
 276  * List for archive table items, i.e. revisions deleted via action=delete
 277  */
 278 class RevDel_ArchiveList extends RevDel_RevisionList {
 279         public function getType() {
 280                 return 'archive';
 281         }
 282
 283         public static function getRelationType() {
 284                 return 'ar_timestamp';
 285         }
 286
 287         /**
 288          * @param $db DatabaseBase
 289          * @return mixed
 290          */
 291         public function doQuery( $db ) {
 292                 $timestamps = array();
 293                 foreach ( $this->ids as $id ) {
 294                         $timestamps[] = $db->timestamp( $id );
 295                 }
 296                 return $db->select( 'archive', '*',
 297                                 array(
 298                                         'ar_namespace' => $this->title->getNamespace(),
 299                                         'ar_title'     => $this->title->getDBkey(),
 300                                         'ar_timestamp' => $timestamps
 301                                 ),
 302                                 __METHOD__,
 303                                 array( 'ORDER BY' => 'ar_timestamp DESC' )
 304                         );
 305         }
 306
 307         public function newItem( $row ) {
 308                 return new RevDel_ArchiveItem( $this, $row );
 309         }
 310
 311         public function doPreCommitUpdates() {
 312                 return Status::newGood();
 313         }
 314
 315         public function doPostCommitUpdates() {
 316                 return Status::newGood();
 317         }
 318 }
 319
 320 /**
 321  * Item class for a archive table row
 322  */
 323 class RevDel_ArchiveItem extends RevDel_RevisionItem {
 324         public function __construct( $list, $row ) {
 325                 RevDel_Item::__construct( $list, $row );
 326                 $this->revision = Revision::newFromArchiveRow( $row,
 327                         array( 'page' => $this->list->title->getArticleID() ) );
 328         }
 329
 330         public function getIdField() {
 331                 return 'ar_timestamp';
 332         }
 333
 334         public function getTimestampField() {
 335                 return 'ar_timestamp';
 336         }
 337
 338         public function getAuthorIdField() {
 339                 return 'ar_user';
 340         }
 341
 342         public function getAuthorNameField() {
 343                 return 'ar_user_text';
 344         }
 345
 346         public function getId() {
 347                 # Convert DB timestamp to MW timestamp
 348                 return $this->revision->getTimestamp();
 349         }
 350
 351         public function setBits( $bits ) {
 352                 $dbw = wfGetDB( DB_MASTER );
 353                 $dbw->update( 'archive',
 354                         array( 'ar_deleted' => $bits ),
 355                         array(
 356                                 'ar_namespace'  => $this->list->title->getNamespace(),
 357                                 'ar_title'      => $this->list->title->getDBkey(),
 358                                 // use timestamp for index
 359                                 'ar_timestamp'  => $this->row->ar_timestamp,
 360                                 'ar_rev_id'     => $this->row->ar_rev_id,
 361                                 'ar_deleted'    => $this->getBits()
 362                         ),
 363                         __METHOD__ );
 364                 return (bool)$dbw->affectedRows();
 365         }
 366
 367         protected function getRevisionLink() {
 368                 $undelete = SpecialPage::getTitleFor( 'Undelete' );
 369                 $date = $this->list->getLanguage()->userTimeAndDate(
 370                         $this->revision->getTimestamp(), $this->list->getUser() );
 371                 if ( $this->isDeleted() && !$this->canViewContent() ) {
 372                         return $date;
 373                 }
 374                 return Linker::link( $undelete, $date, array(),
 375                         array(
 376                                 'target' => $this->list->title->getPrefixedText(),
 377                                 'timestamp' => $this->revision->getTimestamp()
 378                         ) );
 379         }
 380
 381         protected function getDiffLink() {
 382                 if ( $this->isDeleted() && !$this->canViewContent() ) {
 383                         return $this->list->msg( 'diff' )->escaped();
 384                 }
 385                 $undelete = SpecialPage::getTitleFor( 'Undelete' );
 386                 return Linker::link( $undelete, $this->list->msg( 'diff' )->escaped(), array(),
 387                         array(
 388                                 'target' => $this->list->title->getPrefixedText(),
 389                                 'diff' => 'prev',
 390                                 'timestamp' => $this->revision->getTimestamp()
 391                         ) );
 392         }
 393 }
 394
 395
 396 /**
 397  * Item class for a archive table row by ar_rev_id -- actually
 398  * used via RevDel_RevisionList.
 399  */
 400 class RevDel_ArchivedRevisionItem extends RevDel_ArchiveItem {
 401         public function __construct( $list, $row ) {
 402                 RevDel_Item::__construct( $list, $row );
 403
 404                 $this->revision = Revision::newFromArchiveRow( $row,
 405                         array( 'page' => $this->list->title->getArticleID() ) );
 406         }
 407
 408         public function getIdField() {
 409                 return 'ar_rev_id';
 410         }
 411
 412         public function getId() {
 413                 return $this->revision->getId();
 414         }
 415
 416         public function setBits( $bits ) {
 417                 $dbw = wfGetDB( DB_MASTER );
 418                 $dbw->update( 'archive',
 419                         array( 'ar_deleted' => $bits ),
 420                         array( 'ar_rev_id' => $this->row->ar_rev_id,
 421                                    'ar_deleted' => $this->getBits()
 422                         ),
 423                         __METHOD__ );
 424                 return (bool)$dbw->affectedRows();
 425         }
 426 }
 427
 428 /**
 429  * List for oldimage table items
 430  */
 431 class RevDel_FileList extends RevDel_List {
 432         public function getType() {
 433                 return 'oldimage';
 434         }
 435
 436         public static function getRelationType() {
 437                 return 'oi_archive_name';
 438         }
 439
 440         var $storeBatch, $deleteBatch, $cleanupBatch;
 441
 442         /**
 443          * @param $db DatabaseBase
 444          * @return mixed
 445          */
 446         public function doQuery( $db ) {
 447                 $archiveNames = array();
 448                 foreach( $this->ids as $timestamp ) {
 449                         $archiveNames[] = $timestamp . '!' . $this->title->getDBkey();
 450                 }
 451                 return $db->select( 'oldimage', '*',
 452                         array(
 453                                 'oi_name'         => $this->title->getDBkey(),
 454                                 'oi_archive_name' => $archiveNames
 455                         ),
 456                         __METHOD__,
 457                         array( 'ORDER BY' => 'oi_timestamp DESC' )
 458                 );
 459         }
 460
 461         public function newItem( $row ) {
 462                 return new RevDel_FileItem( $this, $row );
 463         }
 464
 465         public function clearFileOps() {
 466                 $this->deleteBatch = array();
 467                 $this->storeBatch = array();
 468                 $this->cleanupBatch = array();
 469         }
 470
 471         public function doPreCommitUpdates() {
 472                 $status = Status::newGood();
 473                 $repo = RepoGroup::singleton()->getLocalRepo();
 474                 if ( $this->storeBatch ) {
 475                         $status->merge( $repo->storeBatch( $this->storeBatch, FileRepo::OVERWRITE_SAME ) );
 476                 }
 477                 if ( !$status->isOK() ) {
 478                         return $status;
 479                 }
 480                 if ( $this->deleteBatch ) {
 481                         $status->merge( $repo->deleteBatch( $this->deleteBatch ) );
 482                 }
 483                 if ( !$status->isOK() ) {
 484                         // Running cleanupDeletedBatch() after a failed storeBatch() with the DB already
 485                         // modified (but destined for rollback) causes data loss
 486                         return $status;
 487                 }
 488                 if ( $this->cleanupBatch ) {
 489                         $status->merge( $repo->cleanupDeletedBatch( $this->cleanupBatch ) );
 490                 }
 491                 return $status;
 492         }
 493
 494         public function doPostCommitUpdates() {
 495                 $file = wfLocalFile( $this->title );
 496                 $file->purgeCache();
 497                 $file->purgeDescription();
 498                 return Status::newGood();
 499         }
 500
 501         public function getSuppressBit() {
 502                 return File::DELETED_RESTRICTED;
 503         }
 504 }
 505
 506 /**
 507  * Item class for an oldimage table row
 508  */
 509 class RevDel_FileItem extends RevDel_Item {
 510
 511         /**
 512          * @var File
 513          */
 514         var $file;
 515
 516         public function __construct( $list, $row ) {
 517                 parent::__construct( $list, $row );
 518                 $this->file = RepoGroup::singleton()->getLocalRepo()->newFileFromRow( $row );
 519         }
 520
 521         public function getIdField() {
 522                 return 'oi_archive_name';
 523         }
 524
 525         public function getTimestampField() {
 526                 return 'oi_timestamp';
 527         }
 528
 529         public function getAuthorIdField() {
 530                 return 'oi_user';
 531         }
 532
 533         public function getAuthorNameField() {
 534                 return 'oi_user_text';
 535         }
 536
 537         public function getId() {
 538                 $parts = explode( '!', $this->row->oi_archive_name );
 539                 return $parts[0];
 540         }
 541
 542         public function canView() {
 543                 return $this->file->userCan( File::DELETED_RESTRICTED, $this->list->getUser() );
 544         }
 545
 546         public function canViewContent() {
 547                 return $this->file->userCan( File::DELETED_FILE, $this->list->getUser() );
 548         }
 549
 550         public function getBits() {
 551                 return $this->file->getVisibility();
 552         }
 553
 554         public function setBits( $bits ) {
 555                 # Queue the file op
 556                 # @todo FIXME: Move to LocalFile.php
 557                 if ( $this->isDeleted() ) {
 558                         if ( $bits & File::DELETED_FILE ) {
 559                                 # Still deleted
 560                         } else {
 561                                 # Newly undeleted
 562                                 $key = $this->file->getStorageKey();
 563                                 $srcRel = $this->file->repo->getDeletedHashPath( $key ) . $key;
 564                                 $this->list->storeBatch[] = array(
 565                                         $this->file->repo->getVirtualUrl( 'deleted' ) . '/' . $srcRel,
 566                                         'public',
 567                                         $this->file->getRel()
 568                                 );
 569                                 $this->list->cleanupBatch[] = $key;
 570                         }
 571                 } elseif ( $bits & File::DELETED_FILE ) {
 572                         # Newly deleted
 573                         $key = $this->file->getStorageKey();
 574                         $dstRel = $this->file->repo->getDeletedHashPath( $key ) . $key;
 575                         $this->list->deleteBatch[] = array( $this->file->getRel(), $dstRel );
 576                 }
 577
 578                 # Do the database operations
 579                 $dbw = wfGetDB( DB_MASTER );
 580                 $dbw->update( 'oldimage',
 581                         array( 'oi_deleted' => $bits ),
 582                         array(
 583                                 'oi_name' => $this->row->oi_name,
 584                                 'oi_timestamp' => $this->row->oi_timestamp,
 585                                 'oi_deleted' => $this->getBits()
 586                         ),
 587                         __METHOD__
 588                 );
 589                 return (bool)$dbw->affectedRows();
 590         }
 591
 592         public function isDeleted() {
 593                 return $this->file->isDeleted( File::DELETED_FILE );
 594         }
 595
 596         /**
 597          * Get the link to the file.
 598          * Overridden by RevDel_ArchivedFileItem.
 599          * @return string
 600          */
 601         protected function getLink() {
 602                 $date = $this->list->getLanguage()->userTimeAndDate(
 603                         $this->file->getTimestamp(), $this->list->getUser() );
 604                 if ( $this->isDeleted() ) {
 605                         # Hidden files...
 606                         if ( !$this->canViewContent() ) {
 607                                 $link = $date;
 608                         } else {
 609                                 $revdelete = SpecialPage::getTitleFor( 'Revisiondelete' );
 610                                 $link = Linker::link(
 611                                         $revdelete,
 612                                         $date, array(),
 613                                         array(
 614                                                 'target' => $this->list->title->getPrefixedText(),
 615                                                 'file'   => $this->file->getArchiveName(),
 616                                                 'token'  => $this->list->getUser()->getEditToken(
 617                                                         $this->file->getArchiveName() )
 618                                         )
 619                                 );
 620                         }
 621                         return '<span class="history-deleted">' . $link . '</span>';
 622                 } else {
 623                         # Regular files...
 624                         return Xml::element( 'a', array( 'href' => $this->file->getUrl() ), $date );
 625                 }
 626         }
 627         /**
 628          * Generate a user tool link cluster if the current user is allowed to view it
 629          * @return string HTML
 630          */
 631         protected function getUserTools() {
 632                 if( $this->file->userCan( Revision::DELETED_USER, $this->list->getUser() ) ) {
 633                         $link = Linker::userLink( $this->file->user, $this->file->user_text ) .
 634                                 Linker::userToolLinks( $this->file->user, $this->file->user_text );
 635                 } else {
 636                         $link = $this->list->msg( 'rev-deleted-user' )->escaped();
 637                 }
 638                 if( $this->file->isDeleted( Revision::DELETED_USER ) ) {
 639                         return '<span class="history-deleted">' . $link . '</span>';
 640                 }
 641                 return $link;
 642         }
 643
 644         /**
 645          * Wrap and format the file's comment block, if the current
 646          * user is allowed to view it.
 647          *
 648          * @return string HTML
 649          */
 650         protected function getComment() {
 651                 if( $this->file->userCan( File::DELETED_COMMENT, $this->list->getUser() ) ) {
 652                         $block = Linker::commentBlock( $this->file->description );
 653                 } else {
 654                         $block = ' ' . $this->list->msg( 'rev-deleted-comment' )->escaped();
 655                 }
 656                 if( $this->file->isDeleted( File::DELETED_COMMENT ) ) {
 657                         return "<span class=\"history-deleted\">$block</span>";
 658                 }
 659                 return $block;
 660         }
 661
 662         public function getHTML() {
 663                 $data =
 664                         $this->list->msg( 'widthheight' )->numParams(
 665                                 $this->file->getWidth(), $this->file->getHeight() )->text() .
 666                         ' (' . $this->list->msg( 'nbytes' )->numParams( $this->file->getSize() )->text() . ')';
 667
 668                 return '<li>' . $this->getLink() . ' ' . $this->getUserTools() . ' ' .
 669                         $data . ' ' . $this->getComment(). '</li>';
 670         }
 671 }
 672
 673 /**
 674  * List for filearchive table items
 675  */
 676 class RevDel_ArchivedFileList extends RevDel_FileList {
 677         public function getType() {
 678                 return 'filearchive';
 679         }
 680
 681         public static function getRelationType() {
 682                 return 'fa_id';
 683         }
 684
 685         /**
 686          * @param $db DatabaseBase
 687          * @return mixed
 688          */
 689         public function doQuery( $db ) {
 690                 $ids = array_map( 'intval', $this->ids );
 691                 return $db->select( 'filearchive', '*',
 692                         array(
 693                                 'fa_name' => $this->title->getDBkey(),
 694                                 'fa_id'   => $ids
 695                         ),
 696                         __METHOD__,
 697                         array( 'ORDER BY' => 'fa_id DESC' )
 698                 );
 699         }
 700
 701         public function newItem( $row ) {
 702                 return new RevDel_ArchivedFileItem( $this, $row );
 703         }
 704 }
 705
 706 /**
 707  * Item class for a filearchive table row
 708  */
 709 class RevDel_ArchivedFileItem extends RevDel_FileItem {
 710         public function __construct( $list, $row ) {
 711                 RevDel_Item::__construct( $list, $row );
 712                 $this->file = ArchivedFile::newFromRow( $row );
 713         }
 714
 715         public function getIdField() {
 716                 return 'fa_id';
 717         }
 718
 719         public function getTimestampField() {
 720                 return 'fa_timestamp';
 721         }
 722
 723         public function getAuthorIdField() {
 724                 return 'fa_user';
 725         }
 726
 727         public function getAuthorNameField() {
 728                 return 'fa_user_text';
 729         }
 730
 731         public function getId() {
 732                 return $this->row->fa_id;
 733         }
 734
 735         public function setBits( $bits ) {
 736                 $dbw = wfGetDB( DB_MASTER );
 737                 $dbw->update( 'filearchive',
 738                         array( 'fa_deleted' => $bits ),
 739                         array(
 740                                 'fa_id' => $this->row->fa_id,
 741                                 'fa_deleted' => $this->getBits(),
 742                         ),
 743                         __METHOD__
 744                 );
 745                 return (bool)$dbw->affectedRows();
 746         }
 747
 748         protected function getLink() {
 749                 $date = $this->list->getLanguage()->userTimeAndDate(
 750                         $this->file->getTimestamp(), $this->list->getUser() );
 751                 $undelete = SpecialPage::getTitleFor( 'Undelete' );
 752                 $key = $this->file->getKey();
 753                 # Hidden files...
 754                 if( !$this->canViewContent() ) {
 755                         $link = $date;
 756                 } else {
 757                         $link = Linker::link( $undelete, $date, array(),
 758                                 array(
 759                                         'target' => $this->list->title->getPrefixedText(),
 760                                         'file' => $key,
 761                                         'token' => $this->list->getUser()->getEditToken( $key )
 762                                 )
 763                         );
 764                 }
 765                 if( $this->isDeleted() ) {
 766                         $link = '<span class="history-deleted">' . $link . '</span>';
 767                 }
 768                 return $link;
 769         }
 770 }
 771
 772 /**
 773  * List for logging table items
 774  */
 775 class RevDel_LogList extends RevDel_List {
 776         public function getType() {
 777                 return 'logging';
 778         }
 779
 780         public static function getRelationType() {
 781                 return 'log_id';
 782         }
 783
 784         /**
 785          * @param $db DatabaseBase
 786          * @return mixed
 787          */
 788         public function doQuery( $db ) {
 789                 $ids = array_map( 'intval', $this->ids );
 790                 return $db->select( 'logging', '*',
 791                         array( 'log_id' => $ids ),
 792                         __METHOD__,
 793                         array( 'ORDER BY' => 'log_id DESC' )
 794                 );
 795         }
 796
 797         public function newItem( $row ) {
 798                 return new RevDel_LogItem( $this, $row );
 799         }
 800
 801         public function getSuppressBit() {
 802                 return Revision::DELETED_RESTRICTED;
 803         }
 804
 805         public function getLogAction() {
 806                 return 'event';
 807         }
 808
 809         public function getLogParams( $params ) {
 810                 return array(
 811                         implode( ',', $params['ids'] ),
 812                         "ofield={$params['oldBits']}",
 813                         "nfield={$params['newBits']}"
 814                 );
 815         }
 816 }
 817
 818 /**
 819  * Item class for a logging table row
 820  */
 821 class RevDel_LogItem extends RevDel_Item {
 822         public function getIdField() {
 823                 return 'log_id';
 824         }
 825
 826         public function getTimestampField() {
 827                 return 'log_timestamp';
 828         }
 829
 830         public function getAuthorIdField() {
 831                 return 'log_user';
 832         }
 833
 834         public function getAuthorNameField() {
 835                 return 'log_user_text';
 836         }
 837
 838         public function canView() {
 839                 return LogEventsList::userCan( $this->row, Revision::DELETED_RESTRICTED, $this->list->getUser() );
 840         }
 841
 842         public function canViewContent() {
 843                 return true; // none
 844         }
 845
 846         public function getBits() {
 847                 return $this->row->log_deleted;
 848         }
 849
 850         public function setBits( $bits ) {
 851                 $dbw = wfGetDB( DB_MASTER );
 852                 $dbw->update( 'recentchanges',
 853                         array(
 854                                 'rc_deleted' => $bits,
 855                                 'rc_patrolled' => 1
 856                         ),
 857                         array(
 858                                 'rc_logid' => $this->row->log_id,
 859                                 'rc_timestamp' => $this->row->log_timestamp // index
 860                         ),
 861                         __METHOD__
 862                 );
 863                 $dbw->update( 'logging',
 864                         array( 'log_deleted' => $bits ),
 865                         array(
 866                                 'log_id' => $this->row->log_id,
 867                                 'log_deleted' => $this->getBits()
 868                         ),
 869                         __METHOD__
 870                 );
 871                 return (bool)$dbw->affectedRows();
 872         }
 873
 874         public function getHTML() {
 875                 $date = htmlspecialchars( $this->list->getLanguage()->userTimeAndDate(
 876                         $this->row->log_timestamp, $this->list->getUser() ) );
 877                 $title = Title::makeTitle( $this->row->log_namespace, $this->row->log_title );
 878                 $formatter = LogFormatter::newFromRow( $this->row );
 879                 $formatter->setContext( $this->list->getContext() );
 880                 $formatter->setAudience( LogFormatter::FOR_THIS_USER );
 881
 882                 // Log link for this page
 883                 $loglink = Linker::link(
 884                         SpecialPage::getTitleFor( 'Log' ),
 885                         $this->list->msg( 'log' )->escaped(),
 886                         array(),
 887                         array( 'page' => $title->getPrefixedText() )
 888                 );
 889                 $loglink = $this->list->msg( 'parentheses' )->rawParams( $loglink )->escaped();
 890                 // User links and action text
 891                 $action = $formatter->getActionText();
 892                 // Comment
 893                 $comment = $this->list->getLanguage()->getDirMark() . Linker::commentBlock( $this->row->log_comment );
 894                 if( LogEventsList::isDeleted($this->row,LogPage::DELETED_COMMENT) ) {
 895                         $comment = '<span class="history-deleted">' . $comment . '</span>';
 896                 }
 897
 898                 return "<li>$loglink $date $action $comment</li>";
 899         }
 900 }