includes/revisiondelete/RevisionDelete.php

   1 <?php
   2 /**
   3  * List for revision table items
   4  *
   5  * This will check both the 'revision' table for live revisions and the
   6  * 'archive' table for traditionally-deleted revisions that have an
   7  * ar_rev_id saved.
   8  *
   9  * See RevDel_RevisionItem and RevDel_ArchivedRevisionItem for items.
  10  */
  11 class RevDel_RevisionList extends RevDel_List {
  12         var $currentRevId;
  13
  14         public function getType() {
  15                 return 'revision';
  16         }
  17
  18         public static function getRelationType() {
  19                 return 'rev_id';
  20         }
  21
  22         /**
  23          * @param $db DatabaseBase
  24          * @return mixed
  25          */
  26         public function doQuery( $db ) {
  27                 $ids = array_map( 'intval', $this->ids );
  28                 $live = $db->select(
  29                         array( 'revision', 'page', 'user' ),
  30                         array_merge( Revision::selectFields(), Revision::selectUserFields() ),
  31                         array(
  32                                 'rev_page' => $this->title->getArticleID(),
  33                                 'rev_id'   => $ids,
  34                         ),
  35                         __METHOD__,
  36                         array( 'ORDER BY' => 'rev_id DESC' ),
  37                         array(
  38                                 'page' => Revision::pageJoinCond(),
  39                                 'user' => Revision::userJoinCond() )
  40                 );
  41
  42                 if ( $live->numRows() >= count( $ids ) ) {
  43                         // All requested revisions are live, keeps things simple!
  44                         return $live;
  45                 }
  46
  47                 // Check if any requested revisions are available fully deleted.
  48                 $archived = $db->select( array( 'archive' ), '*',
  49                         array(
  50                                 'ar_rev_id' => $ids
  51                         ),
  52                         __METHOD__,
  53                         array( 'ORDER BY' => 'ar_rev_id DESC' )
  54                 );
  55
  56                 if ( $archived->numRows() == 0 ) {
  57                         return $live;
  58                 } elseif ( $live->numRows() == 0 ) {
  59                         return $archived;
  60                 } else {
  61                         // Combine the two! Whee
  62                         $rows = array();
  63                         foreach ( $live as $row ) {
  64                                 $rows[$row->rev_id] = $row;
  65                         }
  66                         foreach ( $archived as $row ) {
  67                                 $rows[$row->ar_rev_id] = $row;
  68                         }
  69                         krsort( $rows );
  70                         return new FakeResultWrapper( array_values( $rows ) );
  71                 }
  72         }
  73
  74         public function newItem( $row ) {
  75                 if ( isset( $row->rev_id ) ) {
  76                         return new RevDel_RevisionItem( $this, $row );
  77                 } elseif ( isset( $row->ar_rev_id ) ) {
  78                         return new RevDel_ArchivedRevisionItem( $this, $row );
  79                 } else {
  80                         // This shouldn't happen. :)
  81                         throw new MWException( 'Invalid row type in RevDel_RevisionList' );
  82                 }
  83         }
  84
  85         public function getCurrent() {
  86                 if ( is_null( $this->currentRevId ) ) {
  87                         $dbw = wfGetDB( DB_MASTER );
  88                         $this->currentRevId = $dbw->selectField(
  89                                 'page', 'page_latest', $this->title->pageCond(), __METHOD__ );
  90                 }
  91                 return $this->currentRevId;
  92         }
  93
  94         public function getSuppressBit() {
  95                 return Revision::DELETED_RESTRICTED;
  96         }
  97
  98         public function doPreCommitUpdates() {
  99                 $this->title->invalidateCache();
 100                 return Status::newGood();
 101         }
 102
 103         public function doPostCommitUpdates() {
 104                 $this->title->purgeSquid();
 105                 // Extensions that require referencing previous revisions may need this
 106                 wfRunHooks( 'ArticleRevisionVisibilitySet', array( &$this->title ) );
 107                 return Status::newGood();
 108         }
 109 }
 110
 111 /**
 112  * Item class for a live revision table row
 113  */
 114 class RevDel_RevisionItem extends RevDel_Item {
 115         var $revision;
 116
 117         public function __construct( $list, $row ) {
 118                 parent::__construct( $list, $row );
 119                 $this->revision = new Revision( $row );
 120         }
 121
 122         public function getIdField() {
 123                 return 'rev_id';
 124         }
 125
 126         public function getTimestampField() {
 127                 return 'rev_timestamp';
 128         }
 129
 130         public function getAuthorIdField() {
 131                 return 'rev_user';
 132         }
 133
 134         public function getAuthorNameField() {
 135                 return 'user_name'; // see Revision::selectUserFields()
 136         }
 137
 138         public function canView() {
 139                 return $this->revision->userCan( Revision::DELETED_RESTRICTED, $this->list->getUser() );
 140         }
 141
 142         public function canViewContent() {
 143                 return $this->revision->userCan( Revision::DELETED_TEXT, $this->list->getUser() );
 144         }
 145
 146         public function getBits() {
 147                 return $this->revision->getVisibility();
 148         }
 149
 150         public function setBits( $bits ) {
 151                 $dbw = wfGetDB( DB_MASTER );
 152                 // Update revision table
 153                 $dbw->update( 'revision',
 154                         array( 'rev_deleted' => $bits ),
 155                         array(
 156                                 'rev_id' => $this->revision->getId(),
 157                                 'rev_page' => $this->revision->getPage(),
 158                                 'rev_deleted' => $this->getBits()
 159                         ),
 160                         __METHOD__
 161                 );
 162                 if ( !$dbw->affectedRows() ) {
 163                         // Concurrent fail!
 164                         return false;
 165                 }
 166                 // Update recentchanges table
 167                 $dbw->update( 'recentchanges',
 168                         array(
 169                                 'rc_deleted' => $bits,
 170                                 'rc_patrolled' => 1
 171                         ),
 172                         array(
 173                                 'rc_this_oldid' => $this->revision->getId(), // condition
 174                                 // non-unique timestamp index
 175                                 'rc_timestamp' => $dbw->timestamp( $this->revision->getTimestamp() ),
 176                         ),
 177                         __METHOD__
 178                 );
 179                 return true;
 180         }
 181
 182         public function isDeleted() {
 183                 return $this->revision->isDeleted( Revision::DELETED_TEXT );
 184         }
 185
 186         public function isHideCurrentOp( $newBits ) {
 187                 return ( $newBits & Revision::DELETED_TEXT )
 188                         && $this->list->getCurrent() == $this->getId();
 189         }
 190
 191         /**
 192          * Get the HTML link to the revision text.
 193          * Overridden by RevDel_ArchiveItem.
 194          * @return string
 195          */
 196         protected function getRevisionLink() {
 197                 $date = $this->list->getLanguage()->timeanddate( $this->revision->getTimestamp(), true );
 198                 if ( $this->isDeleted() && !$this->canViewContent() ) {
 199                         return $date;
 200                 }
 201                 return Linker::link(
 202                         $this->list->title,
 203                         $date,
 204                         array(),
 205                         array(
 206                                 'oldid' => $this->revision->getId(),
 207                                 'unhide' => 1
 208                         )
 209                 );
 210         }
 211
 212         /**
 213          * Get the HTML link to the diff.
 214          * Overridden by RevDel_ArchiveItem
 215          * @return string
 216          */
 217         protected function getDiffLink() {
 218                 if ( $this->isDeleted() && !$this->canViewContent() ) {
 219                         return wfMsgHtml('diff');
 220                 } else {
 221                         return
 222                                 Linker::link(
 223                                         $this->list->title,
 224                                         wfMsgHtml('diff'),
 225                                         array(),
 226                                         array(
 227                                                 'diff' => $this->revision->getId(),
 228                                                 'oldid' => 'prev',
 229                                                 'unhide' => 1
 230                                         ),
 231                                         array(
 232                                                 'known',
 233                                                 'noclasses'
 234                                         )
 235                                 );
 236                 }
 237         }
 238
 239         public function getHTML() {
 240                 $difflink = $this->getDiffLink();
 241                 $revlink = $this->getRevisionLink();
 242                 $userlink = Linker::revUserLink( $this->revision );
 243                 $comment = Linker::revComment( $this->revision );
 244                 if ( $this->isDeleted() ) {
 245                         $revlink = "<span class=\"history-deleted\">$revlink</span>";
 246                 }
 247                 return "<li>($difflink) $revlink $userlink $comment</li>";
 248         }
 249 }
 250
 251 /**
 252  * List for archive table items, i.e. revisions deleted via action=delete
 253  */
 254 class RevDel_ArchiveList extends RevDel_RevisionList {
 255         public function getType() {
 256                 return 'archive';
 257         }
 258
 259         public static function getRelationType() {
 260                 return 'ar_timestamp';
 261         }
 262
 263         /**
 264          * @param $db DatabaseBase
 265          * @return mixed
 266          */
 267         public function doQuery( $db ) {
 268                 $timestamps = array();
 269                 foreach ( $this->ids as $id ) {
 270                         $timestamps[] = $db->timestamp( $id );
 271                 }
 272                 return $db->select( 'archive', '*',
 273                                 array(
 274                                         'ar_namespace' => $this->title->getNamespace(),
 275                                         'ar_title'     => $this->title->getDBkey(),
 276                                         'ar_timestamp' => $timestamps
 277                                 ),
 278                                 __METHOD__,
 279                                 array( 'ORDER BY' => 'ar_timestamp DESC' )
 280                         );
 281         }
 282
 283         public function newItem( $row ) {
 284                 return new RevDel_ArchiveItem( $this, $row );
 285         }
 286
 287         public function doPreCommitUpdates() {
 288                 return Status::newGood();
 289         }
 290
 291         public function doPostCommitUpdates() {
 292                 return Status::newGood();
 293         }
 294 }
 295
 296 /**
 297  * Item class for a archive table row
 298  */
 299 class RevDel_ArchiveItem extends RevDel_RevisionItem {
 300         public function __construct( $list, $row ) {
 301                 RevDel_Item::__construct( $list, $row );
 302                 $this->revision = Revision::newFromArchiveRow( $row,
 303                         array( 'page' => $this->list->title->getArticleId() ) );
 304         }
 305
 306         public function getIdField() {
 307                 return 'ar_timestamp';
 308         }
 309
 310         public function getTimestampField() {
 311                 return 'ar_timestamp';
 312         }
 313
 314         public function getAuthorIdField() {
 315                 return 'ar_user';
 316         }
 317
 318         public function getAuthorNameField() {
 319                 return 'ar_user_text';
 320         }
 321
 322         public function getId() {
 323                 # Convert DB timestamp to MW timestamp
 324                 return $this->revision->getTimestamp();
 325         }
 326
 327         public function setBits( $bits ) {
 328                 $dbw = wfGetDB( DB_MASTER );
 329                 $dbw->update( 'archive',
 330                         array( 'ar_deleted' => $bits ),
 331                         array(
 332                                 'ar_namespace'  => $this->list->title->getNamespace(),
 333                                 'ar_title'      => $this->list->title->getDBkey(),
 334                                 // use timestamp for index
 335                                 'ar_timestamp'  => $this->row->ar_timestamp,
 336                                 'ar_rev_id'     => $this->row->ar_rev_id,
 337                                 'ar_deleted'    => $this->getBits()
 338                         ),
 339                         __METHOD__ );
 340                 return (bool)$dbw->affectedRows();
 341         }
 342
 343         protected function getRevisionLink() {
 344                 $undelete = SpecialPage::getTitleFor( 'Undelete' );
 345                 $date = $this->list->getLanguage()->timeanddate( $this->revision->getTimestamp(), true );
 346                 if ( $this->isDeleted() && !$this->canViewContent() ) {
 347                         return $date;
 348                 }
 349                 return Linker::link( $undelete, $date, array(),
 350                         array(
 351                                 'target' => $this->list->title->getPrefixedText(),
 352                                 'timestamp' => $this->revision->getTimestamp()
 353                         ) );
 354         }
 355
 356         protected function getDiffLink() {
 357                 if ( $this->isDeleted() && !$this->canViewContent() ) {
 358                         return wfMsgHtml( 'diff' );
 359                 }
 360                 $undelete = SpecialPage::getTitleFor( 'Undelete' );
 361                 return Linker::link( $undelete, wfMsgHtml('diff'), array(),
 362                         array(
 363                                 'target' => $this->list->title->getPrefixedText(),
 364                                 'diff' => 'prev',
 365                                 'timestamp' => $this->revision->getTimestamp()
 366                         ) );
 367         }
 368 }
 369
 370
 371 /**
 372  * Item class for a archive table row by ar_rev_id -- actually
 373  * used via RevDel_RevisionList.
 374  */
 375 class RevDel_ArchivedRevisionItem extends RevDel_ArchiveItem {
 376         public function __construct( $list, $row ) {
 377                 RevDel_Item::__construct( $list, $row );
 378
 379                 $this->revision = Revision::newFromArchiveRow( $row,
 380                         array( 'page' => $this->list->title->getArticleId() ) );
 381         }
 382
 383         public function getIdField() {
 384                 return 'ar_rev_id';
 385         }
 386
 387         public function getId() {
 388                 return $this->revision->getId();
 389         }
 390
 391         public function setBits( $bits ) {
 392                 $dbw = wfGetDB( DB_MASTER );
 393                 $dbw->update( 'archive',
 394                         array( 'ar_deleted' => $bits ),
 395                         array( 'ar_rev_id' => $this->row->ar_rev_id,
 396                                    'ar_deleted' => $this->getBits()
 397                         ),
 398                         __METHOD__ );
 399                 return (bool)$dbw->affectedRows();
 400         }
 401 }
 402
 403 /**
 404  * List for oldimage table items
 405  */
 406 class RevDel_FileList extends RevDel_List {
 407         public function getType() {
 408                 return 'oldimage';
 409         }
 410
 411         public static function getRelationType() {
 412                 return 'oi_archive_name';
 413         }
 414
 415         var $storeBatch, $deleteBatch, $cleanupBatch;
 416
 417         /**
 418          * @param $db DatabaseBase
 419          * @return mixed
 420          */
 421         public function doQuery( $db ) {
 422                 $archiveNames = array();
 423                 foreach( $this->ids as $timestamp ) {
 424                         $archiveNames[] = $timestamp . '!' . $this->title->getDBkey();
 425                 }
 426                 return $db->select( 'oldimage', '*',
 427                         array(
 428                                 'oi_name'         => $this->title->getDBkey(),
 429                                 'oi_archive_name' => $archiveNames
 430                         ),
 431                         __METHOD__,
 432                         array( 'ORDER BY' => 'oi_timestamp DESC' )
 433                 );
 434         }
 435
 436         public function newItem( $row ) {
 437                 return new RevDel_FileItem( $this, $row );
 438         }
 439
 440         public function clearFileOps() {
 441                 $this->deleteBatch = array();
 442                 $this->storeBatch = array();
 443                 $this->cleanupBatch = array();
 444         }
 445
 446         public function doPreCommitUpdates() {
 447                 $status = Status::newGood();
 448                 $repo = RepoGroup::singleton()->getLocalRepo();
 449                 if ( $this->storeBatch ) {
 450                         $status->merge( $repo->storeBatch( $this->storeBatch, FileRepo::OVERWRITE_SAME ) );
 451                 }
 452                 if ( !$status->isOK() ) {
 453                         return $status;
 454                 }
 455                 if ( $this->deleteBatch ) {
 456                         $status->merge( $repo->deleteBatch( $this->deleteBatch ) );
 457                 }
 458                 if ( !$status->isOK() ) {
 459                         // Running cleanupDeletedBatch() after a failed storeBatch() with the DB already
 460                         // modified (but destined for rollback) causes data loss
 461                         return $status;
 462                 }
 463                 if ( $this->cleanupBatch ) {
 464                         $status->merge( $repo->cleanupDeletedBatch( $this->cleanupBatch ) );
 465                 }
 466                 return $status;
 467         }
 468
 469         public function doPostCommitUpdates() {
 470                 $file = wfLocalFile( $this->title );
 471                 $file->purgeCache();
 472                 $file->purgeDescription();
 473                 return Status::newGood();
 474         }
 475
 476         public function getSuppressBit() {
 477                 return File::DELETED_RESTRICTED;
 478         }
 479 }
 480
 481 /**
 482  * Item class for an oldimage table row
 483  */
 484 class RevDel_FileItem extends RevDel_Item {
 485
 486         /**
 487          * @var File
 488          */
 489         var $file;
 490
 491         public function __construct( $list, $row ) {
 492                 parent::__construct( $list, $row );
 493                 $this->file = RepoGroup::singleton()->getLocalRepo()->newFileFromRow( $row );
 494         }
 495
 496         public function getIdField() {
 497                 return 'oi_archive_name';
 498         }
 499
 500         public function getTimestampField() {
 501                 return 'oi_timestamp';
 502         }
 503
 504         public function getAuthorIdField() {
 505                 return 'oi_user';
 506         }
 507
 508         public function getAuthorNameField() {
 509                 return 'oi_user_text';
 510         }
 511
 512         public function getId() {
 513                 $parts = explode( '!', $this->row->oi_archive_name );
 514                 return $parts[0];
 515         }
 516
 517         public function canView() {
 518                 return $this->file->userCan( File::DELETED_RESTRICTED, $this->list->getUser() );
 519         }
 520
 521         public function canViewContent() {
 522                 return $this->file->userCan( File::DELETED_FILE, $this->list->getUser() );
 523         }
 524
 525         public function getBits() {
 526                 return $this->file->getVisibility();
 527         }
 528
 529         public function setBits( $bits ) {
 530                 # Queue the file op
 531                 # @todo FIXME: Move to LocalFile.php
 532                 if ( $this->isDeleted() ) {
 533                         if ( $bits & File::DELETED_FILE ) {
 534                                 # Still deleted
 535                         } else {
 536                                 # Newly undeleted
 537                                 $key = $this->file->getStorageKey();
 538                                 $srcRel = $this->file->repo->getDeletedHashPath( $key ) . $key;
 539                                 $this->list->storeBatch[] = array(
 540                                         $this->file->repo->getVirtualUrl( 'deleted' ) . '/' . $srcRel,
 541                                         'public',
 542                                         $this->file->getRel()
 543                                 );
 544                                 $this->list->cleanupBatch[] = $key;
 545                         }
 546                 } elseif ( $bits & File::DELETED_FILE ) {
 547                         # Newly deleted
 548                         $key = $this->file->getStorageKey();
 549                         $dstRel = $this->file->repo->getDeletedHashPath( $key ) . $key;
 550                         $this->list->deleteBatch[] = array( $this->file->getRel(), $dstRel );
 551                 }
 552
 553                 # Do the database operations
 554                 $dbw = wfGetDB( DB_MASTER );
 555                 $dbw->update( 'oldimage',
 556                         array( 'oi_deleted' => $bits ),
 557                         array(
 558                                 'oi_name' => $this->row->oi_name,
 559                                 'oi_timestamp' => $this->row->oi_timestamp,
 560                                 'oi_deleted' => $this->getBits()
 561                         ),
 562                         __METHOD__
 563                 );
 564                 return (bool)$dbw->affectedRows();
 565         }
 566
 567         public function isDeleted() {
 568                 return $this->file->isDeleted( File::DELETED_FILE );
 569         }
 570
 571         /**
 572          * Get the link to the file.
 573          * Overridden by RevDel_ArchivedFileItem.
 574          * @return string
 575          */
 576         protected function getLink() {
 577                 $date = $this->list->getLanguage()->timeanddate( $this->file->getTimestamp(), true  );
 578                 if ( $this->isDeleted() ) {
 579                         # Hidden files...
 580                         if ( !$this->canViewContent() ) {
 581                                 $link = $date;
 582                         } else {
 583                                 $revdelete = SpecialPage::getTitleFor( 'Revisiondelete' );
 584                                 $link = Linker::link(
 585                                         $revdelete,
 586                                         $date, array(),
 587                                         array(
 588                                                 'target' => $this->list->title->getPrefixedText(),
 589                                                 'file'   => $this->file->getArchiveName(),
 590                                                 'token'  => $this->list->getUser()->getEditToken(
 591                                                         $this->file->getArchiveName() )
 592                                         )
 593                                 );
 594                         }
 595                         return '<span class="history-deleted">' . $link . '</span>';
 596                 } else {
 597                         # Regular files...
 598                         return Xml::element( 'a', array( 'href' => $this->file->getUrl() ), $date );
 599                 }
 600         }
 601         /**
 602          * Generate a user tool link cluster if the current user is allowed to view it
 603          * @return string HTML
 604          */
 605         protected function getUserTools() {
 606                 if( $this->file->userCan( Revision::DELETED_USER, $this->list->getUser() ) ) {
 607                         $link = Linker::userLink( $this->file->user, $this->file->user_text ) .
 608                                 Linker::userToolLinks( $this->file->user, $this->file->user_text );
 609                 } else {
 610                         $link = wfMsgHtml( 'rev-deleted-user' );
 611                 }
 612                 if( $this->file->isDeleted( Revision::DELETED_USER ) ) {
 613                         return '<span class="history-deleted">' . $link . '</span>';
 614                 }
 615                 return $link;
 616         }
 617
 618         /**
 619          * Wrap and format the file's comment block, if the current
 620          * user is allowed to view it.
 621          *
 622          * @return string HTML
 623          */
 624         protected function getComment() {
 625                 if( $this->file->userCan( File::DELETED_COMMENT, $this->list->getUser() ) ) {
 626                         $block = Linker::commentBlock( $this->file->description );
 627                 } else {
 628                         $block = ' ' . wfMsgHtml( 'rev-deleted-comment' );
 629                 }
 630                 if( $this->file->isDeleted( File::DELETED_COMMENT ) ) {
 631                         return "<span class=\"history-deleted\">$block</span>";
 632                 }
 633                 return $block;
 634         }
 635
 636         public function getHTML() {
 637                 $data =
 638                         wfMsg(
 639                                 'widthheight',
 640                                 $this->list->getLanguage()->formatNum( $this->file->getWidth() ),
 641                                 $this->list->getLanguage()->formatNum( $this->file->getHeight() )
 642                         ) .
 643                         ' (' .
 644                         wfMsgExt( 'nbytes', 'parsemag', $this->list->getLanguage()->formatNum( $this->file->getSize() ) ) .
 645                         ')';
 646
 647                 return '<li>' . $this->getLink() . ' ' . $this->getUserTools() . ' ' .
 648                         $data . ' ' . $this->getComment(). '</li>';
 649         }
 650 }
 651
 652 /**
 653  * List for filearchive table items
 654  */
 655 class RevDel_ArchivedFileList extends RevDel_FileList {
 656         public function getType() {
 657                 return 'filearchive';
 658         }
 659
 660         public static function getRelationType() {
 661                 return 'fa_id';
 662         }
 663
 664         /**
 665          * @param $db DatabaseBase
 666          * @return mixed
 667          */
 668         public function doQuery( $db ) {
 669                 $ids = array_map( 'intval', $this->ids );
 670                 return $db->select( 'filearchive', '*',
 671                         array(
 672                                 'fa_name' => $this->title->getDBkey(),
 673                                 'fa_id'   => $ids
 674                         ),
 675                         __METHOD__,
 676                         array( 'ORDER BY' => 'fa_id DESC' )
 677                 );
 678         }
 679
 680         public function newItem( $row ) {
 681                 return new RevDel_ArchivedFileItem( $this, $row );
 682         }
 683 }
 684
 685 /**
 686  * Item class for a filearchive table row
 687  */
 688 class RevDel_ArchivedFileItem extends RevDel_FileItem {
 689         public function __construct( $list, $row ) {
 690                 RevDel_Item::__construct( $list, $row );
 691                 $this->file = ArchivedFile::newFromRow( $row );
 692         }
 693
 694         public function getIdField() {
 695                 return 'fa_id';
 696         }
 697
 698         public function getTimestampField() {
 699                 return 'fa_timestamp';
 700         }
 701
 702         public function getAuthorIdField() {
 703                 return 'fa_user';
 704         }
 705
 706         public function getAuthorNameField() {
 707                 return 'fa_user_text';
 708         }
 709
 710         public function getId() {
 711                 return $this->row->fa_id;
 712         }
 713
 714         public function setBits( $bits ) {
 715                 $dbw = wfGetDB( DB_MASTER );
 716                 $dbw->update( 'filearchive',
 717                         array( 'fa_deleted' => $bits ),
 718                         array(
 719                                 'fa_id' => $this->row->fa_id,
 720                                 'fa_deleted' => $this->getBits(),
 721                         ),
 722                         __METHOD__
 723                 );
 724                 return (bool)$dbw->affectedRows();
 725         }
 726
 727         protected function getLink() {
 728                 $date = $this->list->getLanguage()->timeanddate( $this->file->getTimestamp(), true  );
 729                 $undelete = SpecialPage::getTitleFor( 'Undelete' );
 730                 $key = $this->file->getKey();
 731                 # Hidden files...
 732                 if( !$this->canViewContent() ) {
 733                         $link = $date;
 734                 } else {
 735                         $link = Linker::link( $undelete, $date, array(),
 736                                 array(
 737                                         'target' => $this->list->title->getPrefixedText(),
 738                                         'file' => $key,
 739                                         'token' => $this->list->getUser()->getEditToken( $key )
 740                                 )
 741                         );
 742                 }
 743                 if( $this->isDeleted() ) {
 744                         $link = '<span class="history-deleted">' . $link . '</span>';
 745                 }
 746                 return $link;
 747         }
 748 }
 749
 750 /**
 751  * List for logging table items
 752  */
 753 class RevDel_LogList extends RevDel_List {
 754         public function getType() {
 755                 return 'logging';
 756         }
 757
 758         public static function getRelationType() {
 759                 return 'log_id';
 760         }
 761
 762         /**
 763          * @param $db DatabaseBase
 764          * @return mixed
 765          */
 766         public function doQuery( $db ) {
 767                 $ids = array_map( 'intval', $this->ids );
 768                 return $db->select( 'logging', '*',
 769                         array( 'log_id' => $ids ),
 770                         __METHOD__,
 771                         array( 'ORDER BY' => 'log_id DESC' )
 772                 );
 773         }
 774
 775         public function newItem( $row ) {
 776                 return new RevDel_LogItem( $this, $row );
 777         }
 778
 779         public function getSuppressBit() {
 780                 return Revision::DELETED_RESTRICTED;
 781         }
 782
 783         public function getLogAction() {
 784                 return 'event';
 785         }
 786
 787         public function getLogParams( $params ) {
 788                 return array(
 789                         implode( ',', $params['ids'] ),
 790                         "ofield={$params['oldBits']}",
 791                         "nfield={$params['newBits']}"
 792                 );
 793         }
 794 }
 795
 796 /**
 797  * Item class for a logging table row
 798  */
 799 class RevDel_LogItem extends RevDel_Item {
 800         public function getIdField() {
 801                 return 'log_id';
 802         }
 803
 804         public function getTimestampField() {
 805                 return 'log_timestamp';
 806         }
 807
 808         public function getAuthorIdField() {
 809                 return 'log_user';
 810         }
 811
 812         public function getAuthorNameField() {
 813                 return 'log_user_text';
 814         }
 815
 816         public function canView() {
 817                 return LogEventsList::userCan( $this->row, Revision::DELETED_RESTRICTED, $this->list->getUser() );
 818         }
 819
 820         public function canViewContent() {
 821                 return true; // none
 822         }
 823
 824         public function getBits() {
 825                 return $this->row->log_deleted;
 826         }
 827
 828         public function setBits( $bits ) {
 829                 $dbw = wfGetDB( DB_MASTER );
 830                 $dbw->update( 'recentchanges',
 831                         array(
 832                                 'rc_deleted' => $bits,
 833                                 'rc_patrolled' => 1
 834                         ),
 835                         array(
 836                                 'rc_logid' => $this->row->log_id,
 837                                 'rc_timestamp' => $this->row->log_timestamp // index
 838                         ),
 839                         __METHOD__
 840                 );
 841                 $dbw->update( 'logging',
 842                         array( 'log_deleted' => $bits ),
 843                         array(
 844                                 'log_id' => $this->row->log_id,
 845                                 'log_deleted' => $this->getBits()
 846                         ),
 847                         __METHOD__
 848                 );
 849                 return (bool)$dbw->affectedRows();
 850         }
 851
 852         public function getHTML() {
 853                 $date = htmlspecialchars( $this->list->getLanguage()->timeanddate( $this->row->log_timestamp ) );
 854                 $title = Title::makeTitle( $this->row->log_namespace, $this->row->log_title );
 855                 $formatter = LogFormatter::newFromRow( $this->row );
 856                 $formatter->setAudience( LogFormatter::FOR_THIS_USER );
 857
 858                 // Log link for this page
 859                 $loglink = Linker::link(
 860                         SpecialPage::getTitleFor( 'Log' ),
 861                         wfMsgHtml( 'log' ),
 862                         array(),
 863                         array( 'page' => $title->getPrefixedText() )
 864                 );
 865                 // User links and action text
 866                 $action = $formatter->getActionText();
 867                 // Comment
 868                 $comment = $this->list->getLanguage()->getDirMark() . Linker::commentBlock( $this->row->log_comment );
 869                 if( LogEventsList::isDeleted($this->row,LogPage::DELETED_COMMENT) ) {
 870                         $comment = '<span class="history-deleted">' . $comment . '</span>';
 871                 }
 872
 873                 return "<li>($loglink) $date $action $comment</li>";
 874         }
 875 }