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