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