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PHP Cross Reference of MediaWiki-1.24.0 |
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1 <?php 2 /** 3 * Implements Special:Undelete 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License along 16 * with this program; if not, write to the Free Software Foundation, Inc., 17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 18 * http://www.gnu.org/copyleft/gpl.html 19 * 20 * @file 21 * @ingroup SpecialPage 22 */ 23 24 /** 25 * Used to show archived pages and eventually restore them. 26 * 27 * @ingroup SpecialPage 28 */ 29 class PageArchive { 30 /** @var Title */ 31 protected $title; 32 33 /** @var Status */ 34 protected $fileStatus; 35 36 /** @var Status */ 37 protected $revisionStatus; 38 39 /** @var Config */ 40 protected $config; 41 42 function __construct( $title, Config $config = null ) { 43 if ( is_null( $title ) ) { 44 throw new MWException( __METHOD__ . ' given a null title.' ); 45 } 46 $this->title = $title; 47 if ( $config === null ) { 48 wfDebug( __METHOD__ . ' did not have a Config object passed to it' ); 49 $config = ConfigFactory::getDefaultInstance()->makeConfig( 'main' ); 50 } 51 $this->config = $config; 52 } 53 54 /** 55 * List all deleted pages recorded in the archive table. Returns result 56 * wrapper with (ar_namespace, ar_title, count) fields, ordered by page 57 * namespace/title. 58 * 59 * @return ResultWrapper 60 */ 61 public static function listAllPages() { 62 $dbr = wfGetDB( DB_SLAVE ); 63 64 return self::listPages( $dbr, '' ); 65 } 66 67 /** 68 * List deleted pages recorded in the archive table matching the 69 * given title prefix. 70 * Returns result wrapper with (ar_namespace, ar_title, count) fields. 71 * 72 * @param string $prefix Title prefix 73 * @return ResultWrapper 74 */ 75 public static function listPagesByPrefix( $prefix ) { 76 $dbr = wfGetDB( DB_SLAVE ); 77 78 $title = Title::newFromText( $prefix ); 79 if ( $title ) { 80 $ns = $title->getNamespace(); 81 $prefix = $title->getDBkey(); 82 } else { 83 // Prolly won't work too good 84 // @todo handle bare namespace names cleanly? 85 $ns = 0; 86 } 87 88 $conds = array( 89 'ar_namespace' => $ns, 90 'ar_title' . $dbr->buildLike( $prefix, $dbr->anyString() ), 91 ); 92 93 return self::listPages( $dbr, $conds ); 94 } 95 96 /** 97 * @param DatabaseBase $dbr 98 * @param string|array $condition 99 * @return bool|ResultWrapper 100 */ 101 protected static function listPages( $dbr, $condition ) { 102 return $dbr->select( 103 array( 'archive' ), 104 array( 105 'ar_namespace', 106 'ar_title', 107 'count' => 'COUNT(*)' 108 ), 109 $condition, 110 __METHOD__, 111 array( 112 'GROUP BY' => array( 'ar_namespace', 'ar_title' ), 113 'ORDER BY' => array( 'ar_namespace', 'ar_title' ), 114 'LIMIT' => 100, 115 ) 116 ); 117 } 118 119 /** 120 * List the revisions of the given page. Returns result wrapper with 121 * (ar_minor_edit, ar_timestamp, ar_user, ar_user_text, ar_comment) fields. 122 * 123 * @return ResultWrapper 124 */ 125 function listRevisions() { 126 $dbr = wfGetDB( DB_SLAVE ); 127 128 $tables = array( 'archive' ); 129 130 $fields = array( 131 'ar_minor_edit', 'ar_timestamp', 'ar_user', 'ar_user_text', 132 'ar_comment', 'ar_len', 'ar_deleted', 'ar_rev_id', 'ar_sha1', 133 ); 134 135 if ( $this->config->get( 'ContentHandlerUseDB' ) ) { 136 $fields[] = 'ar_content_format'; 137 $fields[] = 'ar_content_model'; 138 } 139 140 $conds = array( 'ar_namespace' => $this->title->getNamespace(), 141 'ar_title' => $this->title->getDBkey() ); 142 143 $options = array( 'ORDER BY' => 'ar_timestamp DESC' ); 144 145 $join_conds = array(); 146 147 ChangeTags::modifyDisplayQuery( 148 $tables, 149 $fields, 150 $conds, 151 $join_conds, 152 $options 153 ); 154 155 return $dbr->select( $tables, 156 $fields, 157 $conds, 158 __METHOD__, 159 $options, 160 $join_conds 161 ); 162 } 163 164 /** 165 * List the deleted file revisions for this page, if it's a file page. 166 * Returns a result wrapper with various filearchive fields, or null 167 * if not a file page. 168 * 169 * @return ResultWrapper 170 * @todo Does this belong in Image for fuller encapsulation? 171 */ 172 function listFiles() { 173 if ( $this->title->getNamespace() != NS_FILE ) { 174 return null; 175 } 176 177 $dbr = wfGetDB( DB_SLAVE ); 178 return $dbr->select( 179 'filearchive', 180 ArchivedFile::selectFields(), 181 array( 'fa_name' => $this->title->getDBkey() ), 182 __METHOD__, 183 array( 'ORDER BY' => 'fa_timestamp DESC' ) 184 ); 185 } 186 187 /** 188 * Return a Revision object containing data for the deleted revision. 189 * Note that the result *may* or *may not* have a null page ID. 190 * 191 * @param string $timestamp 192 * @return Revision|null 193 */ 194 function getRevision( $timestamp ) { 195 $dbr = wfGetDB( DB_SLAVE ); 196 197 $fields = array( 198 'ar_rev_id', 199 'ar_text', 200 'ar_comment', 201 'ar_user', 202 'ar_user_text', 203 'ar_timestamp', 204 'ar_minor_edit', 205 'ar_flags', 206 'ar_text_id', 207 'ar_deleted', 208 'ar_len', 209 'ar_sha1', 210 ); 211 212 if ( $this->config->get( 'ContentHandlerUseDB' ) ) { 213 $fields[] = 'ar_content_format'; 214 $fields[] = 'ar_content_model'; 215 } 216 217 $row = $dbr->selectRow( 'archive', 218 $fields, 219 array( 'ar_namespace' => $this->title->getNamespace(), 220 'ar_title' => $this->title->getDBkey(), 221 'ar_timestamp' => $dbr->timestamp( $timestamp ) ), 222 __METHOD__ ); 223 224 if ( $row ) { 225 return Revision::newFromArchiveRow( $row, array( 'title' => $this->title ) ); 226 } 227 228 return null; 229 } 230 231 /** 232 * Return the most-previous revision, either live or deleted, against 233 * the deleted revision given by timestamp. 234 * 235 * May produce unexpected results in case of history merges or other 236 * unusual time issues. 237 * 238 * @param string $timestamp 239 * @return Revision|null Null when there is no previous revision 240 */ 241 function getPreviousRevision( $timestamp ) { 242 $dbr = wfGetDB( DB_SLAVE ); 243 244 // Check the previous deleted revision... 245 $row = $dbr->selectRow( 'archive', 246 'ar_timestamp', 247 array( 'ar_namespace' => $this->title->getNamespace(), 248 'ar_title' => $this->title->getDBkey(), 249 'ar_timestamp < ' . 250 $dbr->addQuotes( $dbr->timestamp( $timestamp ) ) ), 251 __METHOD__, 252 array( 253 'ORDER BY' => 'ar_timestamp DESC', 254 'LIMIT' => 1 ) ); 255 $prevDeleted = $row ? wfTimestamp( TS_MW, $row->ar_timestamp ) : false; 256 257 $row = $dbr->selectRow( array( 'page', 'revision' ), 258 array( 'rev_id', 'rev_timestamp' ), 259 array( 260 'page_namespace' => $this->title->getNamespace(), 261 'page_title' => $this->title->getDBkey(), 262 'page_id = rev_page', 263 'rev_timestamp < ' . 264 $dbr->addQuotes( $dbr->timestamp( $timestamp ) ) ), 265 __METHOD__, 266 array( 267 'ORDER BY' => 'rev_timestamp DESC', 268 'LIMIT' => 1 ) ); 269 $prevLive = $row ? wfTimestamp( TS_MW, $row->rev_timestamp ) : false; 270 $prevLiveId = $row ? intval( $row->rev_id ) : null; 271 272 if ( $prevLive && $prevLive > $prevDeleted ) { 273 // Most prior revision was live 274 return Revision::newFromId( $prevLiveId ); 275 } elseif ( $prevDeleted ) { 276 // Most prior revision was deleted 277 return $this->getRevision( $prevDeleted ); 278 } 279 280 // No prior revision on this page. 281 return null; 282 } 283 284 /** 285 * Get the text from an archive row containing ar_text, ar_flags and ar_text_id 286 * 287 * @param object $row Database row 288 * @return string 289 */ 290 function getTextFromRow( $row ) { 291 if ( is_null( $row->ar_text_id ) ) { 292 // An old row from MediaWiki 1.4 or previous. 293 // Text is embedded in this row in classic compression format. 294 return Revision::getRevisionText( $row, 'ar_' ); 295 } 296 297 // New-style: keyed to the text storage backend. 298 $dbr = wfGetDB( DB_SLAVE ); 299 $text = $dbr->selectRow( 'text', 300 array( 'old_text', 'old_flags' ), 301 array( 'old_id' => $row->ar_text_id ), 302 __METHOD__ ); 303 304 return Revision::getRevisionText( $text ); 305 } 306 307 /** 308 * Fetch (and decompress if necessary) the stored text of the most 309 * recently edited deleted revision of the page. 310 * 311 * If there are no archived revisions for the page, returns NULL. 312 * 313 * @return string|null 314 */ 315 function getLastRevisionText() { 316 $dbr = wfGetDB( DB_SLAVE ); 317 $row = $dbr->selectRow( 'archive', 318 array( 'ar_text', 'ar_flags', 'ar_text_id' ), 319 array( 'ar_namespace' => $this->title->getNamespace(), 320 'ar_title' => $this->title->getDBkey() ), 321 __METHOD__, 322 array( 'ORDER BY' => 'ar_timestamp DESC' ) ); 323 324 if ( $row ) { 325 return $this->getTextFromRow( $row ); 326 } 327 328 return null; 329 } 330 331 /** 332 * Quick check if any archived revisions are present for the page. 333 * 334 * @return bool 335 */ 336 function isDeleted() { 337 $dbr = wfGetDB( DB_SLAVE ); 338 $n = $dbr->selectField( 'archive', 'COUNT(ar_title)', 339 array( 'ar_namespace' => $this->title->getNamespace(), 340 'ar_title' => $this->title->getDBkey() ), 341 __METHOD__ 342 ); 343 344 return ( $n > 0 ); 345 } 346 347 /** 348 * Restore the given (or all) text and file revisions for the page. 349 * Once restored, the items will be removed from the archive tables. 350 * The deletion log will be updated with an undeletion notice. 351 * 352 * @param array $timestamps Pass an empty array to restore all revisions, 353 * otherwise list the ones to undelete. 354 * @param string $comment 355 * @param array $fileVersions 356 * @param bool $unsuppress 357 * @param User $user User performing the action, or null to use $wgUser 358 * @return array(number of file revisions restored, number of image revisions 359 * restored, log message) on success, false on failure. 360 */ 361 function undelete( $timestamps, $comment = '', $fileVersions = array(), 362 $unsuppress = false, User $user = null 363 ) { 364 // If both the set of text revisions and file revisions are empty, 365 // restore everything. Otherwise, just restore the requested items. 366 $restoreAll = empty( $timestamps ) && empty( $fileVersions ); 367 368 $restoreText = $restoreAll || !empty( $timestamps ); 369 $restoreFiles = $restoreAll || !empty( $fileVersions ); 370 371 if ( $restoreFiles && $this->title->getNamespace() == NS_FILE ) { 372 $img = wfLocalFile( $this->title ); 373 $this->fileStatus = $img->restore( $fileVersions, $unsuppress ); 374 if ( !$this->fileStatus->isOK() ) { 375 return false; 376 } 377 $filesRestored = $this->fileStatus->successCount; 378 } else { 379 $filesRestored = 0; 380 } 381 382 if ( $restoreText ) { 383 $this->revisionStatus = $this->undeleteRevisions( $timestamps, $unsuppress, $comment ); 384 if ( !$this->revisionStatus->isOK() ) { 385 return false; 386 } 387 388 $textRestored = $this->revisionStatus->getValue(); 389 } else { 390 $textRestored = 0; 391 } 392 393 // Touch the log! 394 395 if ( $textRestored && $filesRestored ) { 396 $reason = wfMessage( 'undeletedrevisions-files' ) 397 ->numParams( $textRestored, $filesRestored )->inContentLanguage()->text(); 398 } elseif ( $textRestored ) { 399 $reason = wfMessage( 'undeletedrevisions' )->numParams( $textRestored ) 400 ->inContentLanguage()->text(); 401 } elseif ( $filesRestored ) { 402 $reason = wfMessage( 'undeletedfiles' )->numParams( $filesRestored ) 403 ->inContentLanguage()->text(); 404 } else { 405 wfDebug( "Undelete: nothing undeleted...\n" ); 406 407 return false; 408 } 409 410 if ( trim( $comment ) != '' ) { 411 $reason .= wfMessage( 'colon-separator' )->inContentLanguage()->text() . $comment; 412 } 413 414 if ( $user === null ) { 415 global $wgUser; 416 $user = $wgUser; 417 } 418 419 $logEntry = new ManualLogEntry( 'delete', 'restore' ); 420 $logEntry->setPerformer( $user ); 421 $logEntry->setTarget( $this->title ); 422 $logEntry->setComment( $reason ); 423 424 wfRunHooks( 'ArticleUndeleteLogEntry', array( $this, &$logEntry, $user ) ); 425 426 $logid = $logEntry->insert(); 427 $logEntry->publish( $logid ); 428 429 return array( $textRestored, $filesRestored, $reason ); 430 } 431 432 /** 433 * This is the meaty bit -- restores archived revisions of the given page 434 * to the cur/old tables. If the page currently exists, all revisions will 435 * be stuffed into old, otherwise the most recent will go into cur. 436 * 437 * @param array $timestamps Pass an empty array to restore all revisions, 438 * otherwise list the ones to undelete. 439 * @param bool $unsuppress Remove all ar_deleted/fa_deleted restrictions of seletected revs 440 * @param string $comment 441 * @throws ReadOnlyError 442 * @return Status Status object containing the number of revisions restored on success 443 */ 444 private function undeleteRevisions( $timestamps, $unsuppress = false, $comment = '' ) { 445 if ( wfReadOnly() ) { 446 throw new ReadOnlyError(); 447 } 448 449 $restoreAll = empty( $timestamps ); 450 $dbw = wfGetDB( DB_MASTER ); 451 452 # Does this page already exist? We'll have to update it... 453 $article = WikiPage::factory( $this->title ); 454 # Load latest data for the current page (bug 31179) 455 $article->loadPageData( 'fromdbmaster' ); 456 $oldcountable = $article->isCountable(); 457 458 $page = $dbw->selectRow( 'page', 459 array( 'page_id', 'page_latest' ), 460 array( 'page_namespace' => $this->title->getNamespace(), 461 'page_title' => $this->title->getDBkey() ), 462 __METHOD__, 463 array( 'FOR UPDATE' ) // lock page 464 ); 465 466 if ( $page ) { 467 $makepage = false; 468 # Page already exists. Import the history, and if necessary 469 # we'll update the latest revision field in the record. 470 471 $previousRevId = $page->page_latest; 472 473 # Get the time span of this page 474 $previousTimestamp = $dbw->selectField( 'revision', 'rev_timestamp', 475 array( 'rev_id' => $previousRevId ), 476 __METHOD__ ); 477 478 if ( $previousTimestamp === false ) { 479 wfDebug( __METHOD__ . ": existing page refers to a page_latest that does not exist\n" ); 480 481 $status = Status::newGood( 0 ); 482 $status->warning( 'undeleterevision-missing' ); 483 484 return $status; 485 } 486 } else { 487 # Have to create a new article... 488 $makepage = true; 489 $previousRevId = 0; 490 $previousTimestamp = 0; 491 } 492 493 $oldWhere = array( 494 'ar_namespace' => $this->title->getNamespace(), 495 'ar_title' => $this->title->getDBkey(), 496 ); 497 if ( !$restoreAll ) { 498 $oldWhere['ar_timestamp'] = array_map( array( &$dbw, 'timestamp' ), $timestamps ); 499 } 500 501 $fields = array( 502 'ar_rev_id', 503 'ar_text', 504 'ar_comment', 505 'ar_user', 506 'ar_user_text', 507 'ar_timestamp', 508 'ar_minor_edit', 509 'ar_flags', 510 'ar_text_id', 511 'ar_deleted', 512 'ar_page_id', 513 'ar_len', 514 'ar_sha1' 515 ); 516 517 if ( $this->config->get( 'ContentHandlerUseDB' ) ) { 518 $fields[] = 'ar_content_format'; 519 $fields[] = 'ar_content_model'; 520 } 521 522 /** 523 * Select each archived revision... 524 */ 525 $result = $dbw->select( 'archive', 526 $fields, 527 $oldWhere, 528 __METHOD__, 529 /* options */ array( 'ORDER BY' => 'ar_timestamp' ) 530 ); 531 532 $rev_count = $result->numRows(); 533 if ( !$rev_count ) { 534 wfDebug( __METHOD__ . ": no revisions to restore\n" ); 535 536 $status = Status::newGood( 0 ); 537 $status->warning( "undelete-no-results" ); 538 539 return $status; 540 } 541 542 $result->seek( $rev_count - 1 ); // move to last 543 $row = $result->fetchObject(); // get newest archived rev 544 $oldPageId = (int)$row->ar_page_id; // pass this to ArticleUndelete hook 545 $result->seek( 0 ); // move back 546 547 // grab the content to check consistency with global state before restoring the page. 548 $revision = Revision::newFromArchiveRow( $row, 549 array( 550 'title' => $article->getTitle(), // used to derive default content model 551 ) 552 ); 553 $user = User::newFromName( $revision->getRawUserText(), false ); 554 $content = $revision->getContent( Revision::RAW ); 555 556 //NOTE: article ID may not be known yet. prepareSave() should not modify the database. 557 $status = $content->prepareSave( $article, 0, -1, $user ); 558 559 if ( !$status->isOK() ) { 560 return $status; 561 } 562 563 if ( $makepage ) { 564 // Check the state of the newest to-be version... 565 if ( !$unsuppress && ( $row->ar_deleted & Revision::DELETED_TEXT ) ) { 566 return Status::newFatal( "undeleterevdel" ); 567 } 568 // Safe to insert now... 569 $newid = $article->insertOn( $dbw ); 570 $pageId = $newid; 571 } else { 572 // Check if a deleted revision will become the current revision... 573 if ( $row->ar_timestamp > $previousTimestamp ) { 574 // Check the state of the newest to-be version... 575 if ( !$unsuppress && ( $row->ar_deleted & Revision::DELETED_TEXT ) ) { 576 return Status::newFatal( "undeleterevdel" ); 577 } 578 } 579 580 $newid = false; 581 $pageId = $article->getId(); 582 } 583 584 $revision = null; 585 $restored = 0; 586 587 foreach ( $result as $row ) { 588 // Check for key dupes due to shitty archive integrity. 589 if ( $row->ar_rev_id ) { 590 $exists = $dbw->selectField( 'revision', '1', 591 array( 'rev_id' => $row->ar_rev_id ), __METHOD__ ); 592 if ( $exists ) { 593 continue; // don't throw DB errors 594 } 595 } 596 // Insert one revision at a time...maintaining deletion status 597 // unless we are specifically removing all restrictions... 598 $revision = Revision::newFromArchiveRow( $row, 599 array( 600 'page' => $pageId, 601 'title' => $this->title, 602 'deleted' => $unsuppress ? 0 : $row->ar_deleted 603 ) ); 604 605 $revision->insertOn( $dbw ); 606 $restored++; 607 608 wfRunHooks( 'ArticleRevisionUndeleted', array( &$this->title, $revision, $row->ar_page_id ) ); 609 } 610 # Now that it's safely stored, take it out of the archive 611 $dbw->delete( 'archive', 612 $oldWhere, 613 __METHOD__ ); 614 615 // Was anything restored at all? 616 if ( $restored == 0 ) { 617 return Status::newGood( 0 ); 618 } 619 620 $created = (bool)$newid; 621 622 // Attach the latest revision to the page... 623 $wasnew = $article->updateIfNewerOn( $dbw, $revision, $previousRevId ); 624 if ( $created || $wasnew ) { 625 // Update site stats, link tables, etc 626 $user = User::newFromName( $revision->getRawUserText(), false ); 627 $article->doEditUpdates( 628 $revision, 629 $user, 630 array( 'created' => $created, 'oldcountable' => $oldcountable ) 631 ); 632 } 633 634 wfRunHooks( 'ArticleUndelete', array( &$this->title, $created, $comment, $oldPageId ) ); 635 636 if ( $this->title->getNamespace() == NS_FILE ) { 637 $update = new HTMLCacheUpdate( $this->title, 'imagelinks' ); 638 $update->doUpdate(); 639 } 640 641 return Status::newGood( $restored ); 642 } 643 644 /** 645 * @return Status 646 */ 647 function getFileStatus() { 648 return $this->fileStatus; 649 } 650 651 /** 652 * @return Status 653 */ 654 function getRevisionStatus() { 655 return $this->revisionStatus; 656 } 657 } 658 659 /** 660 * Special page allowing users with the appropriate permissions to view 661 * and restore deleted content. 662 * 663 * @ingroup SpecialPage 664 */ 665 class SpecialUndelete extends SpecialPage { 666 private $mAction; 667 private $mTarget; 668 private $mTimestamp; 669 private $mRestore; 670 private $mInvert; 671 private $mFilename; 672 private $mTargetTimestamp; 673 private $mAllowed; 674 private $mCanView; 675 private $mComment; 676 private $mToken; 677 678 /** @var Title */ 679 private $mTargetObj; 680 681 function __construct() { 682 parent::__construct( 'Undelete', 'deletedhistory' ); 683 } 684 685 function loadRequest( $par ) { 686 $request = $this->getRequest(); 687 $user = $this->getUser(); 688 689 $this->mAction = $request->getVal( 'action' ); 690 if ( $par !== null && $par !== '' ) { 691 $this->mTarget = $par; 692 } else { 693 $this->mTarget = $request->getVal( 'target' ); 694 } 695 696 $this->mTargetObj = null; 697 698 if ( $this->mTarget !== null && $this->mTarget !== '' ) { 699 $this->mTargetObj = Title::newFromURL( $this->mTarget ); 700 } 701 702 $this->mSearchPrefix = $request->getText( 'prefix' ); 703 $time = $request->getVal( 'timestamp' ); 704 $this->mTimestamp = $time ? wfTimestamp( TS_MW, $time ) : ''; 705 $this->mFilename = $request->getVal( 'file' ); 706 707 $posted = $request->wasPosted() && 708 $user->matchEditToken( $request->getVal( 'wpEditToken' ) ); 709 $this->mRestore = $request->getCheck( 'restore' ) && $posted; 710 $this->mInvert = $request->getCheck( 'invert' ) && $posted; 711 $this->mPreview = $request->getCheck( 'preview' ) && $posted; 712 $this->mDiff = $request->getCheck( 'diff' ); 713 $this->mDiffOnly = $request->getBool( 'diffonly', $this->getUser()->getOption( 'diffonly' ) ); 714 $this->mComment = $request->getText( 'wpComment' ); 715 $this->mUnsuppress = $request->getVal( 'wpUnsuppress' ) && $user->isAllowed( 'suppressrevision' ); 716 $this->mToken = $request->getVal( 'token' ); 717 718 if ( $this->isAllowed( 'undelete' ) && !$user->isBlocked() ) { 719 $this->mAllowed = true; // user can restore 720 $this->mCanView = true; // user can view content 721 } elseif ( $this->isAllowed( 'deletedtext' ) ) { 722 $this->mAllowed = false; // user cannot restore 723 $this->mCanView = true; // user can view content 724 $this->mRestore = false; 725 } else { // user can only view the list of revisions 726 $this->mAllowed = false; 727 $this->mCanView = false; 728 $this->mTimestamp = ''; 729 $this->mRestore = false; 730 } 731 732 if ( $this->mRestore || $this->mInvert ) { 733 $timestamps = array(); 734 $this->mFileVersions = array(); 735 foreach ( $request->getValues() as $key => $val ) { 736 $matches = array(); 737 if ( preg_match( '/^ts(\d{14})$/', $key, $matches ) ) { 738 array_push( $timestamps, $matches[1] ); 739 } 740 741 if ( preg_match( '/^fileid(\d+)$/', $key, $matches ) ) { 742 $this->mFileVersions[] = intval( $matches[1] ); 743 } 744 } 745 rsort( $timestamps ); 746 $this->mTargetTimestamp = $timestamps; 747 } 748 } 749 750 /** 751 * Checks whether a user is allowed the permission for the 752 * specific title if one is set. 753 * 754 * @param string $permission 755 * @param User $user 756 * @return bool 757 */ 758 private function isAllowed( $permission, User $user = null ) { 759 $user = $user ? : $this->getUser(); 760 if ( $this->mTargetObj !== null ) { 761 return $this->mTargetObj->userCan( $permission, $user ); 762 } else { 763 return $user->isAllowed( $permission ); 764 } 765 } 766 767 function userCanExecute( User $user ) { 768 return $this->isAllowed( $this->mRestriction, $user ); 769 } 770 771 function execute( $par ) { 772 $user = $this->getUser(); 773 774 $this->setHeaders(); 775 $this->outputHeader(); 776 777 $this->loadRequest( $par ); 778 $this->checkPermissions(); // Needs to be after mTargetObj is set 779 780 $out = $this->getOutput(); 781 782 if ( is_null( $this->mTargetObj ) ) { 783 $out->addWikiMsg( 'undelete-header' ); 784 785 # Not all users can just browse every deleted page from the list 786 if ( $user->isAllowed( 'browsearchive' ) ) { 787 $this->showSearchForm(); 788 } 789 790 return; 791 } 792 793 if ( $this->mAllowed ) { 794 $out->setPageTitle( $this->msg( 'undeletepage' ) ); 795 } else { 796 $out->setPageTitle( $this->msg( 'viewdeletedpage' ) ); 797 } 798 799 $this->getSkin()->setRelevantTitle( $this->mTargetObj ); 800 801 if ( $this->mTimestamp !== '' ) { 802 $this->showRevision( $this->mTimestamp ); 803 } elseif ( $this->mFilename !== null && $this->mTargetObj->inNamespace( NS_FILE ) ) { 804 $file = new ArchivedFile( $this->mTargetObj, '', $this->mFilename ); 805 // Check if user is allowed to see this file 806 if ( !$file->exists() ) { 807 $out->addWikiMsg( 'filedelete-nofile', $this->mFilename ); 808 } elseif ( !$file->userCan( File::DELETED_FILE, $user ) ) { 809 if ( $file->isDeleted( File::DELETED_RESTRICTED ) ) { 810 throw new PermissionsError( 'suppressrevision' ); 811 } else { 812 throw new PermissionsError( 'deletedtext' ); 813 } 814 } elseif ( !$user->matchEditToken( $this->mToken, $this->mFilename ) ) { 815 $this->showFileConfirmationForm( $this->mFilename ); 816 } else { 817 $this->showFile( $this->mFilename ); 818 } 819 } elseif ( $this->mRestore && $this->mAction == 'submit' ) { 820 $this->undelete(); 821 } else { 822 $this->showHistory(); 823 } 824 } 825 826 function showSearchForm() { 827 $out = $this->getOutput(); 828 $out->setPageTitle( $this->msg( 'undelete-search-title' ) ); 829 $out->addHTML( 830 Xml::openElement( 'form', array( 'method' => 'get', 'action' => wfScript() ) ) . 831 Xml::fieldset( $this->msg( 'undelete-search-box' )->text() ) . 832 Html::hidden( 'title', $this->getPageTitle()->getPrefixedDBkey() ) . 833 Html::rawElement( 834 'label', 835 array( 'for' => 'prefix' ), 836 $this->msg( 'undelete-search-prefix' )->parse() 837 ) . 838 Xml::input( 839 'prefix', 840 20, 841 $this->mSearchPrefix, 842 array( 'id' => 'prefix', 'autofocus' => true ) 843 ) . ' ' . 844 Xml::submitButton( $this->msg( 'undelete-search-submit' )->text() ) . 845 Xml::closeElement( 'fieldset' ) . 846 Xml::closeElement( 'form' ) 847 ); 848 849 # List undeletable articles 850 if ( $this->mSearchPrefix ) { 851 $result = PageArchive::listPagesByPrefix( $this->mSearchPrefix ); 852 $this->showList( $result ); 853 } 854 } 855 856 /** 857 * Generic list of deleted pages 858 * 859 * @param ResultWrapper $result 860 * @return bool 861 */ 862 private function showList( $result ) { 863 $out = $this->getOutput(); 864 865 if ( $result->numRows() == 0 ) { 866 $out->addWikiMsg( 'undelete-no-results' ); 867 868 return false; 869 } 870 871 $out->addWikiMsg( 'undeletepagetext', $this->getLanguage()->formatNum( $result->numRows() ) ); 872 873 $undelete = $this->getPageTitle(); 874 $out->addHTML( "<ul>\n" ); 875 foreach ( $result as $row ) { 876 $title = Title::makeTitleSafe( $row->ar_namespace, $row->ar_title ); 877 if ( $title !== null ) { 878 $item = Linker::linkKnown( 879 $undelete, 880 htmlspecialchars( $title->getPrefixedText() ), 881 array(), 882 array( 'target' => $title->getPrefixedText() ) 883 ); 884 } else { 885 // The title is no longer valid, show as text 886 $item = Html::element( 887 'span', 888 array( 'class' => 'mw-invalidtitle' ), 889 Linker::getInvalidTitleDescription( 890 $this->getContext(), 891 $row->ar_namespace, 892 $row->ar_title 893 ) 894 ); 895 } 896 $revs = $this->msg( 'undeleterevisions' )->numParams( $row->count )->parse(); 897 $out->addHTML( "<li>{$item} ({$revs})</li>\n" ); 898 } 899 $result->free(); 900 $out->addHTML( "</ul>\n" ); 901 902 return true; 903 } 904 905 private function showRevision( $timestamp ) { 906 if ( !preg_match( '/[0-9]{14}/', $timestamp ) ) { 907 return; 908 } 909 910 $archive = new PageArchive( $this->mTargetObj, $this->getConfig() ); 911 if ( !wfRunHooks( 'UndeleteForm::showRevision', array( &$archive, $this->mTargetObj ) ) ) { 912 return; 913 } 914 $rev = $archive->getRevision( $timestamp ); 915 916 $out = $this->getOutput(); 917 $user = $this->getUser(); 918 919 if ( !$rev ) { 920 $out->addWikiMsg( 'undeleterevision-missing' ); 921 922 return; 923 } 924 925 if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) { 926 if ( !$rev->userCan( Revision::DELETED_TEXT, $user ) ) { 927 $out->wrapWikiMsg( 928 "<div class='mw-warning plainlinks'>\n$1\n</div>\n", 929 $rev->isDeleted( Revision::DELETED_RESTRICTED ) ? 930 'rev-suppressed-text-permission' : 'rev-deleted-text-permission' 931 ); 932 933 return; 934 } 935 936 $out->wrapWikiMsg( 937 "<div class='mw-warning plainlinks'>\n$1\n</div>\n", 938 $rev->isDeleted( Revision::DELETED_RESTRICTED ) ? 939 'rev-suppressed-text-view' : 'rev-deleted-text-view' 940 ); 941 $out->addHTML( '<br />' ); 942 // and we are allowed to see... 943 } 944 945 if ( $this->mDiff ) { 946 $previousRev = $archive->getPreviousRevision( $timestamp ); 947 if ( $previousRev ) { 948 $this->showDiff( $previousRev, $rev ); 949 if ( $this->mDiffOnly ) { 950 return; 951 } 952 953 $out->addHTML( '<hr />' ); 954 } else { 955 $out->addWikiMsg( 'undelete-nodiff' ); 956 } 957 } 958 959 $link = Linker::linkKnown( 960 $this->getPageTitle( $this->mTargetObj->getPrefixedDBkey() ), 961 htmlspecialchars( $this->mTargetObj->getPrefixedText() ) 962 ); 963 964 $lang = $this->getLanguage(); 965 966 // date and time are separate parameters to facilitate localisation. 967 // $time is kept for backward compat reasons. 968 $time = $lang->userTimeAndDate( $timestamp, $user ); 969 $d = $lang->userDate( $timestamp, $user ); 970 $t = $lang->userTime( $timestamp, $user ); 971 $userLink = Linker::revUserTools( $rev ); 972 973 $content = $rev->getContent( Revision::FOR_THIS_USER, $user ); 974 975 $isText = ( $content instanceof TextContent ); 976 977 if ( $this->mPreview || $isText ) { 978 $openDiv = '<div id="mw-undelete-revision" class="mw-warning">'; 979 } else { 980 $openDiv = '<div id="mw-undelete-revision">'; 981 } 982 $out->addHTML( $openDiv ); 983 984 // Revision delete links 985 if ( !$this->mDiff ) { 986 $revdel = Linker::getRevDeleteLink( $user, $rev, $this->mTargetObj ); 987 if ( $revdel ) { 988 $out->addHTML( "$revdel " ); 989 } 990 } 991 992 $out->addHTML( $this->msg( 'undelete-revision' )->rawParams( $link )->params( 993 $time )->rawParams( $userLink )->params( $d, $t )->parse() . '</div>' ); 994 995 if ( !wfRunHooks( 'UndeleteShowRevision', array( $this->mTargetObj, $rev ) ) ) { 996 return; 997 } 998 999 if ( $this->mPreview || !$isText ) { 1000 // NOTE: non-text content has no source view, so always use rendered preview 1001 1002 // Hide [edit]s 1003 $popts = $out->parserOptions(); 1004 $popts->setEditSection( false ); 1005 1006 $pout = $content->getParserOutput( $this->mTargetObj, $rev->getId(), $popts, true ); 1007 $out->addParserOutput( $pout ); 1008 } 1009 1010 if ( $isText ) { 1011 // source view for textual content 1012 $sourceView = Xml::element( 1013 'textarea', 1014 array( 1015 'readonly' => 'readonly', 1016 'cols' => $user->getIntOption( 'cols' ), 1017 'rows' => $user->getIntOption( 'rows' ) 1018 ), 1019 $content->getNativeData() . "\n" 1020 ); 1021 1022 $previewButton = Xml::element( 'input', array( 1023 'type' => 'submit', 1024 'name' => 'preview', 1025 'value' => $this->msg( 'showpreview' )->text() 1026 ) ); 1027 } else { 1028 $sourceView = ''; 1029 $previewButton = ''; 1030 } 1031 1032 $diffButton = Xml::element( 'input', array( 1033 'name' => 'diff', 1034 'type' => 'submit', 1035 'value' => $this->msg( 'showdiff' )->text() ) ); 1036 1037 $out->addHTML( 1038 $sourceView . 1039 Xml::openElement( 'div', array( 1040 'style' => 'clear: both' ) ) . 1041 Xml::openElement( 'form', array( 1042 'method' => 'post', 1043 'action' => $this->getPageTitle()->getLocalURL( array( 'action' => 'submit' ) ) ) ) . 1044 Xml::element( 'input', array( 1045 'type' => 'hidden', 1046 'name' => 'target', 1047 'value' => $this->mTargetObj->getPrefixedDBkey() ) ) . 1048 Xml::element( 'input', array( 1049 'type' => 'hidden', 1050 'name' => 'timestamp', 1051 'value' => $timestamp ) ) . 1052 Xml::element( 'input', array( 1053 'type' => 'hidden', 1054 'name' => 'wpEditToken', 1055 'value' => $user->getEditToken() ) ) . 1056 $previewButton . 1057 $diffButton . 1058 Xml::closeElement( 'form' ) . 1059 Xml::closeElement( 'div' ) 1060 ); 1061 } 1062 1063 /** 1064 * Build a diff display between this and the previous either deleted 1065 * or non-deleted edit. 1066 * 1067 * @param Revision $previousRev 1068 * @param Revision $currentRev 1069 * @return string HTML 1070 */ 1071 function showDiff( $previousRev, $currentRev ) { 1072 $diffContext = clone $this->getContext(); 1073 $diffContext->setTitle( $currentRev->getTitle() ); 1074 $diffContext->setWikiPage( WikiPage::factory( $currentRev->getTitle() ) ); 1075 1076 $diffEngine = $currentRev->getContentHandler()->createDifferenceEngine( $diffContext ); 1077 $diffEngine->showDiffStyle(); 1078 1079 $formattedDiff = $diffEngine->generateContentDiffBody( 1080 $previousRev->getContent( Revision::FOR_THIS_USER, $this->getUser() ), 1081 $currentRev->getContent( Revision::FOR_THIS_USER, $this->getUser() ) 1082 ); 1083 1084 $formattedDiff = $diffEngine->addHeader( 1085 $formattedDiff, 1086 $this->diffHeader( $previousRev, 'o' ), 1087 $this->diffHeader( $currentRev, 'n' ) 1088 ); 1089 1090 $this->getOutput()->addHTML( "<div>$formattedDiff</div>\n" ); 1091 } 1092 1093 /** 1094 * @param Revision $rev 1095 * @param string $prefix 1096 * @return string 1097 */ 1098 private function diffHeader( $rev, $prefix ) { 1099 $isDeleted = !( $rev->getId() && $rev->getTitle() ); 1100 if ( $isDeleted ) { 1101 /// @todo FIXME: $rev->getTitle() is null for deleted revs...? 1102 $targetPage = $this->getPageTitle(); 1103 $targetQuery = array( 1104 'target' => $this->mTargetObj->getPrefixedText(), 1105 'timestamp' => wfTimestamp( TS_MW, $rev->getTimestamp() ) 1106 ); 1107 } else { 1108 /// @todo FIXME: getId() may return non-zero for deleted revs... 1109 $targetPage = $rev->getTitle(); 1110 $targetQuery = array( 'oldid' => $rev->getId() ); 1111 } 1112 1113 // Add show/hide deletion links if available 1114 $user = $this->getUser(); 1115 $lang = $this->getLanguage(); 1116 $rdel = Linker::getRevDeleteLink( $user, $rev, $this->mTargetObj ); 1117 1118 if ( $rdel ) { 1119 $rdel = " $rdel"; 1120 } 1121 1122 $minor = $rev->isMinor() ? ChangesList::flag( 'minor' ) : ''; 1123 1124 $tags = wfGetDB( DB_SLAVE )->selectField( 1125 'tag_summary', 1126 'ts_tags', 1127 array( 'ts_rev_id' => $rev->getId() ), 1128 __METHOD__ 1129 ); 1130 $tagSummary = ChangeTags::formatSummaryRow( $tags, 'deleteddiff' ); 1131 1132 // FIXME This is reimplementing DifferenceEngine#getRevisionHeader 1133 // and partially #showDiffPage, but worse 1134 return '<div id="mw-diff-' . $prefix . 'title1"><strong>' . 1135 Linker::link( 1136 $targetPage, 1137 $this->msg( 1138 'revisionasof', 1139 $lang->userTimeAndDate( $rev->getTimestamp(), $user ), 1140 $lang->userDate( $rev->getTimestamp(), $user ), 1141 $lang->userTime( $rev->getTimestamp(), $user ) 1142 )->escaped(), 1143 array(), 1144 $targetQuery 1145 ) . 1146 '</strong></div>' . 1147 '<div id="mw-diff-' . $prefix . 'title2">' . 1148 Linker::revUserTools( $rev ) . '<br />' . 1149 '</div>' . 1150 '<div id="mw-diff-' . $prefix . 'title3">' . 1151 $minor . Linker::revComment( $rev ) . $rdel . '<br />' . 1152 '</div>' . 1153 '<div id="mw-diff-' . $prefix . 'title5">' . 1154 $tagSummary[0] . '<br />' . 1155 '</div>'; 1156 } 1157 1158 /** 1159 * Show a form confirming whether a tokenless user really wants to see a file 1160 * @param string $key 1161 */ 1162 private function showFileConfirmationForm( $key ) { 1163 $out = $this->getOutput(); 1164 $lang = $this->getLanguage(); 1165 $user = $this->getUser(); 1166 $file = new ArchivedFile( $this->mTargetObj, '', $this->mFilename ); 1167 $out->addWikiMsg( 'undelete-show-file-confirm', 1168 $this->mTargetObj->getText(), 1169 $lang->userDate( $file->getTimestamp(), $user ), 1170 $lang->userTime( $file->getTimestamp(), $user ) ); 1171 $out->addHTML( 1172 Xml::openElement( 'form', array( 1173 'method' => 'POST', 1174 'action' => $this->getPageTitle()->getLocalURL( array( 1175 'target' => $this->mTarget, 1176 'file' => $key, 1177 'token' => $user->getEditToken( $key ), 1178 ) ), 1179 ) 1180 ) . 1181 Xml::submitButton( $this->msg( 'undelete-show-file-submit' )->text() ) . 1182 '</form>' 1183 ); 1184 } 1185 1186 /** 1187 * Show a deleted file version requested by the visitor. 1188 * @param string $key 1189 */ 1190 private function showFile( $key ) { 1191 $this->getOutput()->disable(); 1192 1193 # We mustn't allow the output to be Squid cached, otherwise 1194 # if an admin previews a deleted image, and it's cached, then 1195 # a user without appropriate permissions can toddle off and 1196 # nab the image, and Squid will serve it 1197 $response = $this->getRequest()->response(); 1198 $response->header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', 0 ) . ' GMT' ); 1199 $response->header( 'Cache-Control: no-cache, no-store, max-age=0, must-revalidate' ); 1200 $response->header( 'Pragma: no-cache' ); 1201 1202 $repo = RepoGroup::singleton()->getLocalRepo(); 1203 $path = $repo->getZonePath( 'deleted' ) . '/' . $repo->getDeletedHashPath( $key ) . $key; 1204 $repo->streamFile( $path ); 1205 } 1206 1207 private function showHistory() { 1208 $out = $this->getOutput(); 1209 if ( $this->mAllowed ) { 1210 $out->addModules( 'mediawiki.special.undelete' ); 1211 } 1212 $out->wrapWikiMsg( 1213 "<div class='mw-undelete-pagetitle'>\n$1\n</div>\n", 1214 array( 'undeletepagetitle', wfEscapeWikiText( $this->mTargetObj->getPrefixedText() ) ) 1215 ); 1216 1217 $archive = new PageArchive( $this->mTargetObj, $this->getConfig() ); 1218 wfRunHooks( 'UndeleteForm::showHistory', array( &$archive, $this->mTargetObj ) ); 1219 /* 1220 $text = $archive->getLastRevisionText(); 1221 if( is_null( $text ) ) { 1222 $out->addWikiMsg( 'nohistory' ); 1223 return; 1224 } 1225 */ 1226 $out->addHTML( '<div class="mw-undelete-history">' ); 1227 if ( $this->mAllowed ) { 1228 $out->addWikiMsg( 'undeletehistory' ); 1229 $out->addWikiMsg( 'undeleterevdel' ); 1230 } else { 1231 $out->addWikiMsg( 'undeletehistorynoadmin' ); 1232 } 1233 $out->addHTML( '</div>' ); 1234 1235 # List all stored revisions 1236 $revisions = $archive->listRevisions(); 1237 $files = $archive->listFiles(); 1238 1239 $haveRevisions = $revisions && $revisions->numRows() > 0; 1240 $haveFiles = $files && $files->numRows() > 0; 1241 1242 # Batch existence check on user and talk pages 1243 if ( $haveRevisions ) { 1244 $batch = new LinkBatch(); 1245 foreach ( $revisions as $row ) { 1246 $batch->addObj( Title::makeTitleSafe( NS_USER, $row->ar_user_text ) ); 1247 $batch->addObj( Title::makeTitleSafe( NS_USER_TALK, $row->ar_user_text ) ); 1248 } 1249 $batch->execute(); 1250 $revisions->seek( 0 ); 1251 } 1252 if ( $haveFiles ) { 1253 $batch = new LinkBatch(); 1254 foreach ( $files as $row ) { 1255 $batch->addObj( Title::makeTitleSafe( NS_USER, $row->fa_user_text ) ); 1256 $batch->addObj( Title::makeTitleSafe( NS_USER_TALK, $row->fa_user_text ) ); 1257 } 1258 $batch->execute(); 1259 $files->seek( 0 ); 1260 } 1261 1262 if ( $this->mAllowed ) { 1263 $action = $this->getPageTitle()->getLocalURL( array( 'action' => 'submit' ) ); 1264 # Start the form here 1265 $top = Xml::openElement( 1266 'form', 1267 array( 'method' => 'post', 'action' => $action, 'id' => 'undelete' ) 1268 ); 1269 $out->addHTML( $top ); 1270 } 1271 1272 # Show relevant lines from the deletion log: 1273 $deleteLogPage = new LogPage( 'delete' ); 1274 $out->addHTML( Xml::element( 'h2', null, $deleteLogPage->getName()->text() ) . "\n" ); 1275 LogEventsList::showLogExtract( $out, 'delete', $this->mTargetObj ); 1276 # Show relevant lines from the suppression log: 1277 $suppressLogPage = new LogPage( 'suppress' ); 1278 if ( $this->getUser()->isAllowed( 'suppressionlog' ) ) { 1279 $out->addHTML( Xml::element( 'h2', null, $suppressLogPage->getName()->text() ) . "\n" ); 1280 LogEventsList::showLogExtract( $out, 'suppress', $this->mTargetObj ); 1281 } 1282 1283 if ( $this->mAllowed && ( $haveRevisions || $haveFiles ) ) { 1284 # Format the user-visible controls (comment field, submission button) 1285 # in a nice little table 1286 if ( $this->getUser()->isAllowed( 'suppressrevision' ) ) { 1287 $unsuppressBox = 1288 "<tr> 1289 <td> </td> 1290 <td class='mw-input'>" . 1291 Xml::checkLabel( $this->msg( 'revdelete-unsuppress' )->text(), 1292 'wpUnsuppress', 'mw-undelete-unsuppress', $this->mUnsuppress ) . 1293 "</td> 1294 </tr>"; 1295 } else { 1296 $unsuppressBox = ''; 1297 } 1298 1299 $table = Xml::fieldset( $this->msg( 'undelete-fieldset-title' )->text() ) . 1300 Xml::openElement( 'table', array( 'id' => 'mw-undelete-table' ) ) . 1301 "<tr> 1302 <td colspan='2' class='mw-undelete-extrahelp'>" . 1303 $this->msg( 'undeleteextrahelp' )->parseAsBlock() . 1304 "</td> 1305 </tr> 1306 <tr> 1307 <td class='mw-label'>" . 1308 Xml::label( $this->msg( 'undeletecomment' )->text(), 'wpComment' ) . 1309 "</td> 1310 <td class='mw-input'>" . 1311 Xml::input( 1312 'wpComment', 1313 50, 1314 $this->mComment, 1315 array( 'id' => 'wpComment', 'autofocus' => true ) 1316 ) . 1317 "</td> 1318 </tr> 1319 <tr> 1320 <td> </td> 1321 <td class='mw-submit'>" . 1322 Xml::submitButton( 1323 $this->msg( 'undeletebtn' )->text(), 1324 array( 'name' => 'restore', 'id' => 'mw-undelete-submit' ) 1325 ) . ' ' . 1326 Xml::submitButton( 1327 $this->msg( 'undeleteinvert' )->text(), 1328 array( 'name' => 'invert', 'id' => 'mw-undelete-invert' ) 1329 ) . 1330 "</td> 1331 </tr>" . 1332 $unsuppressBox . 1333 Xml::closeElement( 'table' ) . 1334 Xml::closeElement( 'fieldset' ); 1335 1336 $out->addHTML( $table ); 1337 } 1338 1339 $out->addHTML( Xml::element( 'h2', null, $this->msg( 'history' )->text() ) . "\n" ); 1340 1341 if ( $haveRevisions ) { 1342 # The page's stored (deleted) history: 1343 $out->addHTML( '<ul>' ); 1344 $remaining = $revisions->numRows(); 1345 $earliestLiveTime = $this->mTargetObj->getEarliestRevTime(); 1346 1347 foreach ( $revisions as $row ) { 1348 $remaining--; 1349 $out->addHTML( $this->formatRevisionRow( $row, $earliestLiveTime, $remaining ) ); 1350 } 1351 $revisions->free(); 1352 $out->addHTML( '</ul>' ); 1353 } else { 1354 $out->addWikiMsg( 'nohistory' ); 1355 } 1356 1357 if ( $haveFiles ) { 1358 $out->addHTML( Xml::element( 'h2', null, $this->msg( 'filehist' )->text() ) . "\n" ); 1359 $out->addHTML( '<ul>' ); 1360 foreach ( $files as $row ) { 1361 $out->addHTML( $this->formatFileRow( $row ) ); 1362 } 1363 $files->free(); 1364 $out->addHTML( '</ul>' ); 1365 } 1366 1367 if ( $this->mAllowed ) { 1368 # Slip in the hidden controls here 1369 $misc = Html::hidden( 'target', $this->mTarget ); 1370 $misc .= Html::hidden( 'wpEditToken', $this->getUser()->getEditToken() ); 1371 $misc .= Xml::closeElement( 'form' ); 1372 $out->addHTML( $misc ); 1373 } 1374 1375 return true; 1376 } 1377 1378 private function formatRevisionRow( $row, $earliestLiveTime, $remaining ) { 1379 $rev = Revision::newFromArchiveRow( $row, 1380 array( 1381 'title' => $this->mTargetObj 1382 ) ); 1383 1384 $revTextSize = ''; 1385 $ts = wfTimestamp( TS_MW, $row->ar_timestamp ); 1386 // Build checkboxen... 1387 if ( $this->mAllowed ) { 1388 if ( $this->mInvert ) { 1389 if ( in_array( $ts, $this->mTargetTimestamp ) ) { 1390 $checkBox = Xml::check( "ts$ts" ); 1391 } else { 1392 $checkBox = Xml::check( "ts$ts", true ); 1393 } 1394 } else { 1395 $checkBox = Xml::check( "ts$ts" ); 1396 } 1397 } else { 1398 $checkBox = ''; 1399 } 1400 1401 // Build page & diff links... 1402 $user = $this->getUser(); 1403 if ( $this->mCanView ) { 1404 $titleObj = $this->getPageTitle(); 1405 # Last link 1406 if ( !$rev->userCan( Revision::DELETED_TEXT, $this->getUser() ) ) { 1407 $pageLink = htmlspecialchars( $this->getLanguage()->userTimeAndDate( $ts, $user ) ); 1408 $last = $this->msg( 'diff' )->escaped(); 1409 } elseif ( $remaining > 0 || ( $earliestLiveTime && $ts > $earliestLiveTime ) ) { 1410 $pageLink = $this->getPageLink( $rev, $titleObj, $ts ); 1411 $last = Linker::linkKnown( 1412 $titleObj, 1413 $this->msg( 'diff' )->escaped(), 1414 array(), 1415 array( 1416 'target' => $this->mTargetObj->getPrefixedText(), 1417 'timestamp' => $ts, 1418 'diff' => 'prev' 1419 ) 1420 ); 1421 } else { 1422 $pageLink = $this->getPageLink( $rev, $titleObj, $ts ); 1423 $last = $this->msg( 'diff' )->escaped(); 1424 } 1425 } else { 1426 $pageLink = htmlspecialchars( $this->getLanguage()->userTimeAndDate( $ts, $user ) ); 1427 $last = $this->msg( 'diff' )->escaped(); 1428 } 1429 1430 // User links 1431 $userLink = Linker::revUserTools( $rev ); 1432 1433 // Minor edit 1434 $minor = $rev->isMinor() ? ChangesList::flag( 'minor' ) : ''; 1435 1436 // Revision text size 1437 $size = $row->ar_len; 1438 if ( !is_null( $size ) ) { 1439 $revTextSize = Linker::formatRevisionSize( $size ); 1440 } 1441 1442 // Edit summary 1443 $comment = Linker::revComment( $rev ); 1444 1445 // Tags 1446 $attribs = array(); 1447 list( $tagSummary, $classes ) = ChangeTags::formatSummaryRow( $row->ts_tags, 'deletedhistory' ); 1448 if ( $classes ) { 1449 $attribs['class'] = implode( ' ', $classes ); 1450 } 1451 1452 // Revision delete links 1453 $revdlink = Linker::getRevDeleteLink( $user, $rev, $this->mTargetObj ); 1454 1455 $revisionRow = $this->msg( 'undelete-revision-row' ) 1456 ->rawParams( 1457 $checkBox, 1458 $revdlink, 1459 $last, 1460 $pageLink, 1461 $userLink, 1462 $minor, 1463 $revTextSize, 1464 $comment, 1465 $tagSummary 1466 ) 1467 ->escaped(); 1468 1469 return Xml::tags( 'li', $attribs, $revisionRow ) . "\n"; 1470 } 1471 1472 private function formatFileRow( $row ) { 1473 $file = ArchivedFile::newFromRow( $row ); 1474 $ts = wfTimestamp( TS_MW, $row->fa_timestamp ); 1475 $user = $this->getUser(); 1476 1477 $checkBox = ''; 1478 if ( $this->mCanView && $row->fa_storage_key ) { 1479 if ( $this->mAllowed ) { 1480 $checkBox = Xml::check( 'fileid' . $row->fa_id ); 1481 } 1482 $key = urlencode( $row->fa_storage_key ); 1483 $pageLink = $this->getFileLink( $file, $this->getPageTitle(), $ts, $key ); 1484 } else { 1485 $pageLink = $this->getLanguage()->userTimeAndDate( $ts, $user ); 1486 } 1487 $userLink = $this->getFileUser( $file ); 1488 $data = $this->msg( 'widthheight' )->numParams( $row->fa_width, $row->fa_height )->text(); 1489 $bytes = $this->msg( 'parentheses' ) 1490 ->rawParams( $this->msg( 'nbytes' )->numParams( $row->fa_size )->text() ) 1491 ->plain(); 1492 $data = htmlspecialchars( $data . ' ' . $bytes ); 1493 $comment = $this->getFileComment( $file ); 1494 1495 // Add show/hide deletion links if available 1496 $canHide = $this->isAllowed( 'deleterevision' ); 1497 if ( $canHide || ( $file->getVisibility() && $this->isAllowed( 'deletedhistory' ) ) ) { 1498 if ( !$file->userCan( File::DELETED_RESTRICTED, $user ) ) { 1499 // Revision was hidden from sysops 1500 $revdlink = Linker::revDeleteLinkDisabled( $canHide ); 1501 } else { 1502 $query = array( 1503 'type' => 'filearchive', 1504 'target' => $this->mTargetObj->getPrefixedDBkey(), 1505 'ids' => $row->fa_id 1506 ); 1507 $revdlink = Linker::revDeleteLink( $query, 1508 $file->isDeleted( File::DELETED_RESTRICTED ), $canHide ); 1509 } 1510 } else { 1511 $revdlink = ''; 1512 } 1513 1514 return "<li>$checkBox $revdlink $pageLink . . $userLink $data $comment</li>\n"; 1515 } 1516 1517 /** 1518 * Fetch revision text link if it's available to all users 1519 * 1520 * @param Revision $rev 1521 * @param Title $titleObj 1522 * @param string $ts Timestamp 1523 * @return string 1524 */ 1525 function getPageLink( $rev, $titleObj, $ts ) { 1526 $user = $this->getUser(); 1527 $time = $this->getLanguage()->userTimeAndDate( $ts, $user ); 1528 1529 if ( !$rev->userCan( Revision::DELETED_TEXT, $user ) ) { 1530 return '<span class="history-deleted">' . $time . '</span>'; 1531 } 1532 1533 $link = Linker::linkKnown( 1534 $titleObj, 1535 htmlspecialchars( $time ), 1536 array(), 1537 array( 1538 'target' => $this->mTargetObj->getPrefixedText(), 1539 'timestamp' => $ts 1540 ) 1541 ); 1542 1543 if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) { 1544 $link = '<span class="history-deleted">' . $link . '</span>'; 1545 } 1546 1547 return $link; 1548 } 1549 1550 /** 1551 * Fetch image view link if it's available to all users 1552 * 1553 * @param File|ArchivedFile $file 1554 * @param Title $titleObj 1555 * @param string $ts A timestamp 1556 * @param string $key A storage key 1557 * 1558 * @return string HTML fragment 1559 */ 1560 function getFileLink( $file, $titleObj, $ts, $key ) { 1561 $user = $this->getUser(); 1562 $time = $this->getLanguage()->userTimeAndDate( $ts, $user ); 1563 1564 if ( !$file->userCan( File::DELETED_FILE, $user ) ) { 1565 return '<span class="history-deleted">' . $time . '</span>'; 1566 } 1567 1568 $link = Linker::linkKnown( 1569 $titleObj, 1570 htmlspecialchars( $time ), 1571 array(), 1572 array( 1573 'target' => $this->mTargetObj->getPrefixedText(), 1574 'file' => $key, 1575 'token' => $user->getEditToken( $key ) 1576 ) 1577 ); 1578 1579 if ( $file->isDeleted( File::DELETED_FILE ) ) { 1580 $link = '<span class="history-deleted">' . $link . '</span>'; 1581 } 1582 1583 return $link; 1584 } 1585 1586 /** 1587 * Fetch file's user id if it's available to this user 1588 * 1589 * @param File|ArchivedFile $file 1590 * @return string HTML fragment 1591 */ 1592 function getFileUser( $file ) { 1593 if ( !$file->userCan( File::DELETED_USER, $this->getUser() ) ) { 1594 return '<span class="history-deleted">' . 1595 $this->msg( 'rev-deleted-user' )->escaped() . 1596 '</span>'; 1597 } 1598 1599 $link = Linker::userLink( $file->getRawUser(), $file->getRawUserText() ) . 1600 Linker::userToolLinks( $file->getRawUser(), $file->getRawUserText() ); 1601 1602 if ( $file->isDeleted( File::DELETED_USER ) ) { 1603 $link = '<span class="history-deleted">' . $link . '</span>'; 1604 } 1605 1606 return $link; 1607 } 1608 1609 /** 1610 * Fetch file upload comment if it's available to this user 1611 * 1612 * @param File|ArchivedFile $file 1613 * @return string HTML fragment 1614 */ 1615 function getFileComment( $file ) { 1616 if ( !$file->userCan( File::DELETED_COMMENT, $this->getUser() ) ) { 1617 return '<span class="history-deleted"><span class="comment">' . 1618 $this->msg( 'rev-deleted-comment' )->escaped() . '</span></span>'; 1619 } 1620 1621 $link = Linker::commentBlock( $file->getRawDescription() ); 1622 1623 if ( $file->isDeleted( File::DELETED_COMMENT ) ) { 1624 $link = '<span class="history-deleted">' . $link . '</span>'; 1625 } 1626 1627 return $link; 1628 } 1629 1630 function undelete() { 1631 if ( $this->getConfig()->get( 'UploadMaintenance' ) && $this->mTargetObj->getNamespace() == NS_FILE ) { 1632 throw new ErrorPageError( 'undelete-error', 'filedelete-maintenance' ); 1633 } 1634 1635 if ( wfReadOnly() ) { 1636 throw new ReadOnlyError; 1637 } 1638 1639 $out = $this->getOutput(); 1640 $archive = new PageArchive( $this->mTargetObj, $this->getConfig() ); 1641 wfRunHooks( 'UndeleteForm::undelete', array( &$archive, $this->mTargetObj ) ); 1642 $ok = $archive->undelete( 1643 $this->mTargetTimestamp, 1644 $this->mComment, 1645 $this->mFileVersions, 1646 $this->mUnsuppress, 1647 $this->getUser() 1648 ); 1649 1650 if ( is_array( $ok ) ) { 1651 if ( $ok[1] ) { // Undeleted file count 1652 wfRunHooks( 'FileUndeleteComplete', array( 1653 $this->mTargetObj, $this->mFileVersions, 1654 $this->getUser(), $this->mComment ) ); 1655 } 1656 1657 $link = Linker::linkKnown( $this->mTargetObj ); 1658 $out->addHTML( $this->msg( 'undeletedpage' )->rawParams( $link )->parse() ); 1659 } else { 1660 $out->setPageTitle( $this->msg( 'undelete-error' ) ); 1661 } 1662 1663 // Show revision undeletion warnings and errors 1664 $status = $archive->getRevisionStatus(); 1665 if ( $status && !$status->isGood() ) { 1666 $out->addWikiText( '<div class="error">' . 1667 $status->getWikiText( 1668 'cannotundelete', 1669 'cannotundelete' 1670 ) . '</div>' 1671 ); 1672 } 1673 1674 // Show file undeletion warnings and errors 1675 $status = $archive->getFileStatus(); 1676 if ( $status && !$status->isGood() ) { 1677 $out->addWikiText( '<div class="error">' . 1678 $status->getWikiText( 1679 'undelete-error-short', 1680 'undelete-error-long' 1681 ) . '</div>' 1682 ); 1683 } 1684 } 1685 1686 protected function getGroupName() { 1687 return 'pagetools'; 1688 } 1689 }
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| Generated: Fri Nov 28 14:03:12 2014 | Cross-referenced by PHPXref 0.7.1 |