4 * Special page allowing users with the appropriate permissions to view
5 * and restore deleted content
14 function wfSpecialUndelete( $par ) {
17 $form = new UndeleteForm( $wgRequest, $par );
22 * Used to show archived pages and eventually restore them.
23 * @ingroup SpecialPage
29 function __construct( $title ) {
30 if( is_null( $title ) ) {
31 throw new MWException( 'Archiver() given a null title.');
33 $this->title
= $title;
37 * List all deleted pages recorded in the archive table. Returns result
38 * wrapper with (ar_namespace, ar_title, count) fields, ordered by page
41 * @return ResultWrapper
43 public static function listAllPages() {
44 $dbr = wfGetDB( DB_SLAVE
);
45 return self
::listPages( $dbr, '' );
49 * List deleted pages recorded in the archive table matching the
51 * Returns result wrapper with (ar_namespace, ar_title, count) fields.
53 * @return ResultWrapper
55 public static function listPagesByPrefix( $prefix ) {
56 $dbr = wfGetDB( DB_SLAVE
);
58 $title = Title
::newFromText( $prefix );
60 $ns = $title->getNamespace();
61 $encPrefix = $dbr->escapeLike( $title->getDBkey() );
63 // Prolly won't work too good
64 // @todo handle bare namespace names cleanly?
66 $encPrefix = $dbr->escapeLike( $prefix );
69 'ar_namespace' => $ns,
70 "ar_title LIKE '$encPrefix%'",
72 return self
::listPages( $dbr, $conds );
75 protected static function listPages( $dbr, $condition ) {
76 return $dbr->resultObject(
87 'GROUP BY' => 'ar_namespace,ar_title',
88 'ORDER BY' => 'ar_namespace,ar_title',
96 * List the revisions of the given page. Returns result wrapper with
97 * (ar_minor_edit, ar_timestamp, ar_user, ar_user_text, ar_comment) fields.
99 * @return ResultWrapper
101 function listRevisions() {
102 $dbr = wfGetDB( DB_SLAVE
);
103 $res = $dbr->select( 'archive',
104 array( 'ar_minor_edit', 'ar_timestamp', 'ar_user', 'ar_user_text', 'ar_comment', 'ar_len', 'ar_deleted' ),
105 array( 'ar_namespace' => $this->title
->getNamespace(),
106 'ar_title' => $this->title
->getDBkey() ),
107 'PageArchive::listRevisions',
108 array( 'ORDER BY' => 'ar_timestamp DESC' ) );
109 $ret = $dbr->resultObject( $res );
114 * List the deleted file revisions for this page, if it's a file page.
115 * Returns a result wrapper with various filearchive fields, or null
116 * if not a file page.
118 * @return ResultWrapper
119 * @todo Does this belong in Image for fuller encapsulation?
121 function listFiles() {
122 if( $this->title
->getNamespace() == NS_FILE
) {
123 $dbr = wfGetDB( DB_SLAVE
);
124 $res = $dbr->select( 'filearchive',
144 array( 'fa_name' => $this->title
->getDBkey() ),
146 array( 'ORDER BY' => 'fa_timestamp DESC' ) );
147 $ret = $dbr->resultObject( $res );
154 * Fetch (and decompress if necessary) the stored text for the deleted
155 * revision of the page with the given timestamp.
158 * @deprecated Use getRevision() for more flexible information
160 function getRevisionText( $timestamp ) {
161 $rev = $this->getRevision( $timestamp );
162 return $rev ?
$rev->getText() : null;
166 * Return a Revision object containing data for the deleted revision.
167 * Note that the result *may* or *may not* have a null page ID.
168 * @param string $timestamp
171 function getRevision( $timestamp ) {
172 $dbr = wfGetDB( DB_SLAVE
);
173 $row = $dbr->selectRow( 'archive',
186 array( 'ar_namespace' => $this->title
->getNamespace(),
187 'ar_title' => $this->title
->getDBkey(),
188 'ar_timestamp' => $dbr->timestamp( $timestamp ) ),
191 return Revision
::newFromArchiveRow( $row, array( 'page' => $this->title
->getArticleId() ) );
198 * Return the most-previous revision, either live or deleted, against
199 * the deleted revision given by timestamp.
201 * May produce unexpected results in case of history merges or other
202 * unusual time issues.
204 * @param string $timestamp
205 * @return Revision or null
207 function getPreviousRevision( $timestamp ) {
208 $dbr = wfGetDB( DB_SLAVE
);
210 // Check the previous deleted revision...
211 $row = $dbr->selectRow( 'archive',
213 array( 'ar_namespace' => $this->title
->getNamespace(),
214 'ar_title' => $this->title
->getDBkey(),
216 $dbr->addQuotes( $dbr->timestamp( $timestamp ) ) ),
219 'ORDER BY' => 'ar_timestamp DESC',
221 $prevDeleted = $row ?
wfTimestamp( TS_MW
, $row->ar_timestamp
) : false;
223 $row = $dbr->selectRow( array( 'page', 'revision' ),
224 array( 'rev_id', 'rev_timestamp' ),
226 'page_namespace' => $this->title
->getNamespace(),
227 'page_title' => $this->title
->getDBkey(),
228 'page_id = rev_page',
230 $dbr->addQuotes( $dbr->timestamp( $timestamp ) ) ),
233 'ORDER BY' => 'rev_timestamp DESC',
235 $prevLive = $row ?
wfTimestamp( TS_MW
, $row->rev_timestamp
) : false;
236 $prevLiveId = $row ?
intval( $row->rev_id
) : null;
238 if( $prevLive && $prevLive > $prevDeleted ) {
239 // Most prior revision was live
240 return Revision
::newFromId( $prevLiveId );
241 } elseif( $prevDeleted ) {
242 // Most prior revision was deleted
243 return $this->getRevision( $prevDeleted );
245 // No prior revision on this page.
251 * Get the text from an archive row containing ar_text, ar_flags and ar_text_id
253 function getTextFromRow( $row ) {
254 if( is_null( $row->ar_text_id
) ) {
255 // An old row from MediaWiki 1.4 or previous.
256 // Text is embedded in this row in classic compression format.
257 return Revision
::getRevisionText( $row, "ar_" );
259 // New-style: keyed to the text storage backend.
260 $dbr = wfGetDB( DB_SLAVE
);
261 $text = $dbr->selectRow( 'text',
262 array( 'old_text', 'old_flags' ),
263 array( 'old_id' => $row->ar_text_id
),
265 return Revision
::getRevisionText( $text );
271 * Fetch (and decompress if necessary) the stored text of the most
272 * recently edited deleted revision of the page.
274 * If there are no archived revisions for the page, returns NULL.
278 function getLastRevisionText() {
279 $dbr = wfGetDB( DB_SLAVE
);
280 $row = $dbr->selectRow( 'archive',
281 array( 'ar_text', 'ar_flags', 'ar_text_id' ),
282 array( 'ar_namespace' => $this->title
->getNamespace(),
283 'ar_title' => $this->title
->getDBkey() ),
284 'PageArchive::getLastRevisionText',
285 array( 'ORDER BY' => 'ar_timestamp DESC' ) );
287 return $this->getTextFromRow( $row );
294 * Quick check if any archived revisions are present for the page.
297 function isDeleted() {
298 $dbr = wfGetDB( DB_SLAVE
);
299 $n = $dbr->selectField( 'archive', 'COUNT(ar_title)',
300 array( 'ar_namespace' => $this->title
->getNamespace(),
301 'ar_title' => $this->title
->getDBkey() ) );
306 * Restore the given (or all) text and file revisions for the page.
307 * Once restored, the items will be removed from the archive tables.
308 * The deletion log will be updated with an undeletion notice.
310 * @param array $timestamps Pass an empty array to restore all revisions, otherwise list the ones to undelete.
311 * @param string $comment
312 * @param array $fileVersions
313 * @param bool $unsuppress
315 * @return array(number of file revisions restored, number of image revisions restored, log message)
316 * on success, false on failure
318 function undelete( $timestamps, $comment = '', $fileVersions = array(), $unsuppress = false ) {
319 // If both the set of text revisions and file revisions are empty,
320 // restore everything. Otherwise, just restore the requested items.
321 $restoreAll = empty( $timestamps ) && empty( $fileVersions );
323 $restoreText = $restoreAll ||
!empty( $timestamps );
324 $restoreFiles = $restoreAll ||
!empty( $fileVersions );
326 if( $restoreFiles && $this->title
->getNamespace() == NS_FILE
) {
327 $img = wfLocalFile( $this->title
);
328 $this->fileStatus
= $img->restore( $fileVersions, $unsuppress );
329 $filesRestored = $this->fileStatus
->successCount
;
335 $textRestored = $this->undeleteRevisions( $timestamps, $unsuppress, $comment );
336 if($textRestored === false) // It must be one of UNDELETE_*
344 $log = new LogPage( 'delete' );
346 if( $textRestored && $filesRestored ) {
347 $reason = wfMsgExt( 'undeletedrevisions-files', array( 'content', 'parsemag' ),
348 $wgContLang->formatNum( $textRestored ),
349 $wgContLang->formatNum( $filesRestored ) );
350 } elseif( $textRestored ) {
351 $reason = wfMsgExt( 'undeletedrevisions', array( 'content', 'parsemag' ),
352 $wgContLang->formatNum( $textRestored ) );
353 } elseif( $filesRestored ) {
354 $reason = wfMsgExt( 'undeletedfiles', array( 'content', 'parsemag' ),
355 $wgContLang->formatNum( $filesRestored ) );
357 wfDebug( "Undelete: nothing undeleted...\n" );
361 if( trim( $comment ) != '' )
362 $reason .= ": {$comment}";
363 $log->addEntry( 'restore', $this->title
, $reason );
365 return array($textRestored, $filesRestored, $reason);
369 * This is the meaty bit -- restores archived revisions of the given page
370 * to the cur/old tables. If the page currently exists, all revisions will
371 * be stuffed into old, otherwise the most recent will go into cur.
373 * @param array $timestamps Pass an empty array to restore all revisions, otherwise list the ones to undelete.
374 * @param string $comment
375 * @param array $fileVersions
376 * @param bool $unsuppress, remove all ar_deleted/fa_deleted restrictions of seletected revs
378 * @return mixed number of revisions restored or false on failure
380 private function undeleteRevisions( $timestamps, $unsuppress = false, $comment = '' ) {
383 $restoreAll = empty( $timestamps );
385 $dbw = wfGetDB( DB_MASTER
);
387 # Does this page already exist? We'll have to update it...
388 $article = new Article( $this->title
);
389 $options = 'FOR UPDATE'; // lock page
390 $page = $dbw->selectRow( 'page',
391 array( 'page_id', 'page_latest' ),
392 array( 'page_namespace' => $this->title
->getNamespace(),
393 'page_title' => $this->title
->getDBkey() ),
399 # Page already exists. Import the history, and if necessary
400 # we'll update the latest revision field in the record.
402 $pageId = $page->page_id
;
403 $previousRevId = $page->page_latest
;
404 # Get the time span of this page
405 $previousTimestamp = $dbw->selectField( 'revision', 'rev_timestamp',
406 array( 'rev_id' => $previousRevId ),
408 if( $previousTimestamp === false ) {
409 wfDebug( __METHOD__
.": existing page refers to a page_latest that does not exist\n" );
413 # Have to create a new article...
416 $previousTimestamp = 0;
420 $oldones = '1 = 1'; # All revisions...
422 $oldts = implode( ',',
423 array_map( array( &$dbw, 'addQuotes' ),
424 array_map( array( &$dbw, 'timestamp' ),
427 $oldones = "ar_timestamp IN ( {$oldts} )";
431 * Select each archived revision...
433 $result = $dbw->select( 'archive',
448 'ar_namespace' => $this->title
->getNamespace(),
449 'ar_title' => $this->title
->getDBkey(),
452 /* options */ array( 'ORDER BY' => 'ar_timestamp' )
454 $ret = $dbw->resultObject( $result );
455 $rev_count = $dbw->numRows( $result );
457 wfDebug( __METHOD__
.": no revisions to restore\n" );
461 $ret->seek( $rev_count - 1 ); // move to last
462 $row = $ret->fetchObject(); // get newest archived rev
463 $ret->seek( 0 ); // move back
466 // Check the state of the newest to-be version...
467 if( !$unsuppress && ($row->ar_deleted
& Revision
::DELETED_TEXT
) ) {
468 return false; // we can't leave the current revision like this!
470 // Safe to insert now...
471 $newid = $article->insertOn( $dbw );
474 // Check if a deleted revision will become the current revision...
475 if( $row->ar_timestamp
> $previousTimestamp ) {
476 // Check the state of the newest to-be version...
477 if( !$unsuppress && ($row->ar_deleted
& Revision
::DELETED_TEXT
) ) {
478 return false; // we can't leave the current revision like this!
486 while( $row = $ret->fetchObject() ) {
487 // Check for key dupes due to shitty archive integrity.
488 if( $row->ar_rev_id
) {
489 $exists = $dbw->selectField( 'revision', '1', array('rev_id' => $row->ar_rev_id
), __METHOD__
);
490 if( $exists ) continue; // don't throw DB errors
492 // Insert one revision at a time...maintaining deletion status
493 // unless we are specifically removing all restrictions...
494 $revision = Revision
::newFromArchiveRow( $row,
497 'deleted' => $unsuppress ?
0 : $row->ar_deleted
500 $revision->insertOn( $dbw );
503 wfRunHooks( 'ArticleRevisionUndeleted', array( &$this->title
, $revision, $row->ar_page_id
) );
505 # Now that it's safely stored, take it out of the archive
506 $dbw->delete( 'archive',
508 'ar_namespace' => $this->title
->getNamespace(),
509 'ar_title' => $this->title
->getDBkey(),
513 // Was anything restored at all?
518 // Attach the latest revision to the page...
519 $wasnew = $article->updateIfNewerOn( $dbw, $revision, $previousRevId );
520 if( $newid ||
$wasnew ) {
521 // Update site stats, link tables, etc
522 $article->createUpdates( $revision );
526 wfRunHooks( 'ArticleUndelete', array( &$this->title
, true, $comment ) );
527 Article
::onArticleCreate( $this->title
);
529 wfRunHooks( 'ArticleUndelete', array( &$this->title
, false, $comment ) );
530 Article
::onArticleEdit( $this->title
);
533 if( $this->title
->getNamespace() == NS_FILE
) {
534 $update = new HTMLCacheUpdate( $this->title
, 'imagelinks' );
538 // Revision couldn't be created. This is very weird
539 return self
::UNDELETE_UNKNOWNERR
;
545 function getFileStatus() { return $this->fileStatus
; }
549 * The HTML form for Special:Undelete, which allows users with the appropriate
550 * permissions to view and restore deleted content.
551 * @ingroup SpecialPage
554 var $mAction, $mTarget, $mTimestamp, $mRestore, $mInvert, $mTargetObj;
555 var $mTargetTimestamp, $mAllowed, $mComment, $mToken;
557 function UndeleteForm( $request, $par = "" ) {
559 $this->mAction
= $request->getVal( 'action' );
560 $this->mTarget
= $request->getVal( 'target' );
561 $this->mSearchPrefix
= $request->getText( 'prefix' );
562 $time = $request->getVal( 'timestamp' );
563 $this->mTimestamp
= $time ?
wfTimestamp( TS_MW
, $time ) : '';
564 $this->mFile
= $request->getVal( 'file' );
566 $posted = $request->wasPosted() &&
567 $wgUser->matchEditToken( $request->getVal( 'wpEditToken' ) );
568 $this->mRestore
= $request->getCheck( 'restore' ) && $posted;
569 $this->mInvert
= $request->getCheck( 'invert' ) && $posted;
570 $this->mPreview
= $request->getCheck( 'preview' ) && $posted;
571 $this->mDiff
= $request->getCheck( 'diff' );
572 $this->mComment
= $request->getText( 'wpComment' );
573 $this->mUnsuppress
= $request->getVal( 'wpUnsuppress' ) && $wgUser->isAllowed( 'suppressrevision' );
574 $this->mToken
= $request->getVal( 'token' );
577 $this->mTarget
= $par;
579 if ( $wgUser->isAllowed( 'undelete' ) && !$wgUser->isBlocked() ) {
580 $this->mAllowed
= true;
582 $this->mAllowed
= false;
583 $this->mTimestamp
= '';
584 $this->mRestore
= false;
586 if ( $this->mTarget
!== "" ) {
587 $this->mTargetObj
= Title
::newFromURL( $this->mTarget
);
589 $this->mTargetObj
= NULL;
591 if( $this->mRestore ||
$this->mInvert
) {
592 $timestamps = array();
593 $this->mFileVersions
= array();
594 foreach( $_REQUEST as $key => $val ) {
596 if( preg_match( '/^ts(\d{14})$/', $key, $matches ) ) {
597 array_push( $timestamps, $matches[1] );
600 if( preg_match( '/^fileid(\d+)$/', $key, $matches ) ) {
601 $this->mFileVersions
[] = intval( $matches[1] );
604 rsort( $timestamps );
605 $this->mTargetTimestamp
= $timestamps;
610 global $wgOut, $wgUser;
611 if ( $this->mAllowed
) {
612 $wgOut->setPagetitle( wfMsg( "undeletepage" ) );
614 $wgOut->setPagetitle( wfMsg( "viewdeletedpage" ) );
617 if( is_null( $this->mTargetObj
) ) {
618 # Not all users can just browse every deleted page from the list
619 if( $wgUser->isAllowed( 'browsearchive' ) ) {
620 $this->showSearchForm();
622 # List undeletable articles
623 if( $this->mSearchPrefix
) {
624 $result = PageArchive
::listPagesByPrefix( $this->mSearchPrefix
);
625 $this->showList( $result );
628 $wgOut->addWikiMsg( 'undelete-header' );
632 if( $this->mTimestamp
!== '' ) {
633 return $this->showRevision( $this->mTimestamp
);
635 if( $this->mFile
!== null ) {
636 $file = new ArchivedFile( $this->mTargetObj
, '', $this->mFile
);
637 // Check if user is allowed to see this file
638 if( !$file->userCan( File
::DELETED_FILE
) ) {
639 $wgOut->permissionRequired( 'suppressrevision' );
641 } elseif ( !$wgUser->matchEditToken( $this->mToken
, $this->mFile
) ) {
642 $this->showFileConfirmationForm( $this->mFile
);
645 return $this->showFile( $this->mFile
);
648 if( $this->mRestore
&& $this->mAction
== "submit" ) {
649 global $wgUploadMaintenance;
650 if( $wgUploadMaintenance && $this->mTargetObj
&& $this->mTargetObj
->getNamespace() == NS_FILE
) {
651 $wgOut->addWikiText('Deletion and restoration of images temporarily disabled during maintenance.' );
654 return $this->undelete();
656 if( $this->mInvert
&& $this->mAction
== "submit" ) {
657 return $this->showHistory( );
659 return $this->showHistory();
662 function showSearchForm() {
663 global $wgOut, $wgScript;
664 $wgOut->addWikiMsg( 'undelete-header' );
667 Xml
::openElement( 'form', array(
669 'action' => $wgScript ) ) .
670 Xml
::fieldset( wfMsg( 'undelete-search-box' ) ) .
671 Xml
::hidden( 'title',
672 SpecialPage
::getTitleFor( 'Undelete' )->getPrefixedDbKey() ) .
673 Xml
::inputLabel( wfMsg( 'undelete-search-prefix' ),
674 'prefix', 'prefix', 20,
675 $this->mSearchPrefix
) . ' ' .
676 Xml
::submitButton( wfMsg( 'undelete-search-submit' ) ) .
677 Xml
::closeElement( 'fieldset' ) .
678 Xml
::closeElement( 'form' )
682 // Generic list of deleted pages
683 private function showList( $result ) {
684 global $wgLang, $wgContLang, $wgUser, $wgOut;
686 if( $result->numRows() == 0 ) {
687 $wgOut->addWikiMsg( 'undelete-no-results' );
691 $wgOut->addWikiMsg( 'undeletepagetext', $wgLang->formatNum( $result->numRows() ) );
693 $sk = $wgUser->getSkin();
694 $undelete = SpecialPage
::getTitleFor( 'Undelete' );
695 $wgOut->addHTML( "<ul>\n" );
696 while( $row = $result->fetchObject() ) {
697 $title = Title
::makeTitleSafe( $row->ar_namespace
, $row->ar_title
);
698 $link = $sk->linkKnown(
700 htmlspecialchars( $title->getPrefixedText() ),
702 array( 'target' => $title->getPrefixedText() )
704 $revs = wfMsgExt( 'undeleterevisions',
705 array( 'parseinline' ),
706 $wgLang->formatNum( $row->count
) );
707 $wgOut->addHTML( "<li>{$link} ({$revs})</li>\n" );
710 $wgOut->addHTML( "</ul>\n" );
715 private function showRevision( $timestamp ) {
716 global $wgLang, $wgUser, $wgOut;
717 $self = SpecialPage
::getTitleFor( 'Undelete' );
718 $skin = $wgUser->getSkin();
720 if(!preg_match("/[0-9]{14}/",$timestamp)) return 0;
722 $archive = new PageArchive( $this->mTargetObj
);
723 $rev = $archive->getRevision( $timestamp );
726 $wgOut->addWikiMsg( 'undeleterevision-missing' );
730 if( $rev->isDeleted(Revision
::DELETED_TEXT
) ) {
731 if( !$rev->userCan(Revision
::DELETED_TEXT
) ) {
732 $wgOut->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1</div>\n", 'rev-deleted-text-permission' );
735 $wgOut->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1</div>\n", 'rev-deleted-text-view' );
736 $wgOut->addHTML( '<br/>' );
737 // and we are allowed to see...
741 $wgOut->setPageTitle( wfMsg( 'undeletepage' ) );
743 $link = $skin->linkKnown(
744 SpecialPage
::getTitleFor( 'Undelete', $this->mTargetObj
->getPrefixedDBkey() ),
745 htmlspecialchars( $this->mTargetObj
->getPrefixedText() )
749 $previousRev = $archive->getPreviousRevision( $timestamp );
751 $this->showDiff( $previousRev, $rev );
752 if( $wgUser->getOption( 'diffonly' ) ) {
755 $wgOut->addHTML( '<hr />' );
758 $wgOut->addWikiMsg( 'undelete-nodiff' );
762 // date and time are separate parameters to facilitate localisation.
763 // $time is kept for backward compat reasons.
764 $time = htmlspecialchars( $wgLang->timeAndDate( $timestamp, true ) );
765 $d = htmlspecialchars( $wgLang->date( $timestamp, true ) );
766 $t = htmlspecialchars( $wgLang->time( $timestamp, true ) );
767 $user = $skin->revUserTools( $rev );
769 if( $this->mPreview
) {
770 $openDiv = '<div id="mw-undelete-revision" class="mw-warning">';
772 $openDiv = '<div id="mw-undelete-revision">';
776 if( $wgUser->isAllowed( 'deleterevision' ) ) {
777 if( !$rev->userCan(Revision
::DELETED_RESTRICTED
) ) {
778 // If revision was hidden from sysops
779 $revdlink = Xml
::tags( 'span', array( 'class'=>'mw-revdelundel-link' ),
780 '('.wfMsgHtml('rev-delundel').')' );
784 'target' => $this->mTargetObj
->getPrefixedDBkey(),
785 'ids' => $rev->getTimestamp()
787 $revdlink = $skin->revDeleteLink( $query, $rev->isDeleted( File
::DELETED_RESTRICTED
) );
791 $wgOut->addHTML( $openDiv . wfMsgWikiHtml( 'undelete-revision', $link, $time, $user, $d, $t ) .
792 $revdlink . '</div>' );
793 wfRunHooks( 'UndeleteShowRevision', array( $this->mTargetObj
, $rev ) );
795 if( $this->mPreview
) {
797 $popts = $wgOut->parserOptions();
798 $popts->setEditSection( false );
799 $wgOut->parserOptions( $popts );
800 $wgOut->addWikiTextTitleTidy( $rev->getText( Revision
::FOR_THIS_USER
), $this->mTargetObj
, true );
804 Xml
::element( 'textarea', array(
805 'readonly' => 'readonly',
806 'cols' => intval( $wgUser->getOption( 'cols' ) ),
807 'rows' => intval( $wgUser->getOption( 'rows' ) ) ),
808 $rev->getText( Revision
::FOR_THIS_USER
) . "\n" ) .
809 Xml
::openElement( 'div' ) .
810 Xml
::openElement( 'form', array(
812 'action' => $self->getLocalURL( array( 'action' => 'submit' ) ) ) ) .
813 Xml
::element( 'input', array(
816 'value' => $this->mTargetObj
->getPrefixedDbKey() ) ) .
817 Xml
::element( 'input', array(
819 'name' => 'timestamp',
820 'value' => $timestamp ) ) .
821 Xml
::element( 'input', array(
823 'name' => 'wpEditToken',
824 'value' => $wgUser->editToken() ) ) .
825 Xml
::element( 'input', array(
828 'value' => wfMsg( 'showpreview' ) ) ) .
829 Xml
::element( 'input', array(
832 'value' => wfMsg( 'showdiff' ) ) ) .
833 Xml
::closeElement( 'form' ) .
834 Xml
::closeElement( 'div' ) );
838 * Build a diff display between this and the previous either deleted
839 * or non-deleted edit.
840 * @param Revision $previousRev
841 * @param Revision $currentRev
842 * @return string HTML
844 function showDiff( $previousRev, $currentRev ) {
847 $diffEngine = new DifferenceEngine();
848 $diffEngine->showDiffStyle();
851 "<table border='0' width='98%' cellpadding='0' cellspacing='4' class='diff'>" .
852 "<col class='diff-marker' />" .
853 "<col class='diff-content' />" .
854 "<col class='diff-marker' />" .
855 "<col class='diff-content' />" .
857 "<td colspan='2' width='50%' align='center' class='diff-otitle'>" .
858 $this->diffHeader( $previousRev, 'o' ) .
860 "<td colspan='2' width='50%' align='center' class='diff-ntitle'>" .
861 $this->diffHeader( $currentRev, 'n' ) .
864 $diffEngine->generateDiffBody(
865 $previousRev->getText(), $currentRev->getText() ) .
871 private function diffHeader( $rev, $prefix ) {
872 global $wgUser, $wgLang, $wgLang;
873 $sk = $wgUser->getSkin();
874 $isDeleted = !( $rev->getId() && $rev->getTitle() );
876 /// @fixme $rev->getTitle() is null for deleted revs...?
877 $targetPage = SpecialPage
::getTitleFor( 'Undelete' );
878 $targetQuery = array(
879 'target' => $this->mTargetObj
->getPrefixedText(),
880 'timestamp' => wfTimestamp( TS_MW
, $rev->getTimestamp() )
883 /// @fixme getId() may return non-zero for deleted revs...
884 $targetPage = $rev->getTitle();
885 $targetQuery = array( 'oldid' => $rev->getId() );
887 // Add show/hide link if available
888 if( $wgUser->isAllowed( 'deleterevision' ) ) {
889 // If revision was hidden from sysops
890 if( !$rev->userCan( Revision
::DELETED_RESTRICTED
) ) {
891 $del = ' ' . Xml
::tags( 'span', array( 'class'=>'mw-revdelundel-link' ),
892 '(' . wfMsgHtml('rev-delundel') . ')' );
893 // Otherwise, show the link...
897 'target' => $this->mTargetObj
->getPrefixedDbkey(),
898 'ids' => $rev->getTimestamp() );
899 $del = ' ' . $sk->revDeleteLink( $query,
900 $rev->isDeleted( Revision
::DELETED_RESTRICTED
) );
906 '<div id="mw-diff-'.$prefix.'title1"><strong>' .
911 htmlspecialchars( $wgLang->timeanddate( $rev->getTimestamp(), true ) ),
912 htmlspecialchars( $wgLang->date( $rev->getTimestamp(), true ) ),
913 htmlspecialchars( $wgLang->time( $rev->getTimestamp(), true ) )
919 '<div id="mw-diff-'.$prefix.'title2">' .
920 $sk->revUserTools( $rev ) . '<br/>' .
922 '<div id="mw-diff-'.$prefix.'title3">' .
923 $sk->revComment( $rev ) . $del . '<br/>' .
928 * Show a form confirming whether a tokenless user really wants to see a file
930 private function showFileConfirmationForm( $key ) {
931 global $wgOut, $wgUser, $wgLang;
932 $file = new ArchivedFile( $this->mTargetObj
, '', $this->mFile
);
933 $wgOut->addWikiMsg( 'undelete-show-file-confirm',
934 $this->mTargetObj
->getText(),
935 $wgLang->date( $file->getTimestamp() ),
936 $wgLang->time( $file->getTimestamp() ) );
938 Xml
::openElement( 'form', array(
940 'action' => SpecialPage
::getTitleFor( 'Undelete' )->getLocalUrl(
941 'target=' . urlencode( $this->mTarget
) .
942 '&file=' . urlencode( $key ) .
943 '&token=' . urlencode( $wgUser->editToken( $key ) ) )
946 Xml
::submitButton( wfMsg( 'undelete-show-file-submit' ) ) .
952 * Show a deleted file version requested by the visitor.
954 private function showFile( $key ) {
955 global $wgOut, $wgRequest;
958 # We mustn't allow the output to be Squid cached, otherwise
959 # if an admin previews a deleted image, and it's cached, then
960 # a user without appropriate permissions can toddle off and
961 # nab the image, and Squid will serve it
962 $wgRequest->response()->header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', 0 ) . ' GMT' );
963 $wgRequest->response()->header( 'Cache-Control: no-cache, no-store, max-age=0, must-revalidate' );
964 $wgRequest->response()->header( 'Pragma: no-cache' );
967 require_once( "$IP/includes/StreamFile.php" );
968 $repo = RepoGroup
::singleton()->getLocalRepo();
969 $path = $repo->getZonePath( 'deleted' ) . '/' . $repo->getDeletedHashPath( $key ) . $key;
970 wfStreamFile( $path );
973 private function showHistory( ) {
974 global $wgLang, $wgUser, $wgOut;
976 $sk = $wgUser->getSkin();
977 if( $this->mAllowed
) {
978 $wgOut->setPagetitle( wfMsg( "undeletepage" ) );
980 $wgOut->setPagetitle( wfMsg( 'viewdeletedpage' ) );
983 $wgOut->wrapWikiMsg( "<div class='mw-undelete-pagetitle'>\n$1</div>\n", array ( 'undeletepagetitle', $this->mTargetObj
->getPrefixedText() ) );
985 $archive = new PageArchive( $this->mTargetObj
);
987 $text = $archive->getLastRevisionText();
988 if( is_null( $text ) ) {
989 $wgOut->addWikiMsg( "nohistory" );
993 $wgOut->addHTML( '<div class="mw-undelete-history">' );
994 if ( $this->mAllowed
) {
995 $wgOut->addWikiMsg( "undeletehistory" );
996 $wgOut->addWikiMsg( "undeleterevdel" );
998 $wgOut->addWikiMsg( "undeletehistorynoadmin" );
1000 $wgOut->addHTML( '</div>' );
1002 # List all stored revisions
1003 $revisions = $archive->listRevisions();
1004 $files = $archive->listFiles();
1006 $haveRevisions = $revisions && $revisions->numRows() > 0;
1007 $haveFiles = $files && $files->numRows() > 0;
1009 # Batch existence check on user and talk pages
1010 if( $haveRevisions ) {
1011 $batch = new LinkBatch();
1012 while( $row = $revisions->fetchObject() ) {
1013 $batch->addObj( Title
::makeTitleSafe( NS_USER
, $row->ar_user_text
) );
1014 $batch->addObj( Title
::makeTitleSafe( NS_USER_TALK
, $row->ar_user_text
) );
1017 $revisions->seek( 0 );
1020 $batch = new LinkBatch();
1021 while( $row = $files->fetchObject() ) {
1022 $batch->addObj( Title
::makeTitleSafe( NS_USER
, $row->fa_user_text
) );
1023 $batch->addObj( Title
::makeTitleSafe( NS_USER_TALK
, $row->fa_user_text
) );
1029 if ( $this->mAllowed
) {
1030 $titleObj = SpecialPage
::getTitleFor( "Undelete" );
1031 $action = $titleObj->getLocalURL( array( 'action' => 'submit' ) );
1032 # Start the form here
1033 $top = Xml
::openElement( 'form', array( 'method' => 'post', 'action' => $action, 'id' => 'undelete' ) );
1034 $wgOut->addHTML( $top );
1037 # Show relevant lines from the deletion log:
1038 $wgOut->addHTML( Xml
::element( 'h2', null, LogPage
::logName( 'delete' ) ) . "\n" );
1039 LogEventsList
::showLogExtract( $wgOut, 'delete', $this->mTargetObj
->getPrefixedText() );
1040 # Show relevant lines from the suppression log:
1041 if( $wgUser->isAllowed( 'suppressionlog' ) ) {
1042 $wgOut->addHTML( Xml
::element( 'h2', null, LogPage
::logName( 'suppress' ) ) . "\n" );
1043 LogEventsList
::showLogExtract( $wgOut, 'suppress', $this->mTargetObj
->getPrefixedText() );
1046 if( $this->mAllowed
&& ( $haveRevisions ||
$haveFiles ) ) {
1047 # Format the user-visible controls (comment field, submission button)
1048 # in a nice little table
1049 if( $wgUser->isAllowed( 'suppressrevision' ) ) {
1053 <td class='mw-input'>" .
1054 Xml
::checkLabel( wfMsg('revdelete-unsuppress'), 'wpUnsuppress',
1055 'mw-undelete-unsuppress', $this->mUnsuppress
).
1059 $unsuppressBox = "";
1062 Xml
::fieldset( wfMsg( 'undelete-fieldset-title' ) ) .
1063 Xml
::openElement( 'table', array( 'id' => 'mw-undelete-table' ) ) .
1065 <td colspan='2' class='mw-undelete-extrahelp'>" .
1066 wfMsgWikiHtml( 'undeleteextrahelp' ) .
1070 <td class='mw-label'>" .
1071 Xml
::label( wfMsg( 'undeletecomment' ), 'wpComment' ) .
1073 <td class='mw-input'>" .
1074 Xml
::input( 'wpComment', 50, $this->mComment
, array( 'id' => 'wpComment' ) ) .
1079 <td class='mw-submit'>" .
1080 Xml
::submitButton( wfMsg( 'undeletebtn' ), array( 'name' => 'restore', 'id' => 'mw-undelete-submit' ) ) . ' ' .
1081 Xml
::element( 'input', array( 'type' => 'reset', 'value' => wfMsg( 'undeletereset' ), 'id' => 'mw-undelete-reset' ) ) . ' ' .
1082 Xml
::submitButton( wfMsg( 'undeleteinvert' ), array( 'name' => 'invert', 'id' => 'mw-undelete-invert' ) ) .
1086 Xml
::closeElement( 'table' ) .
1087 Xml
::closeElement( 'fieldset' );
1089 $wgOut->addHTML( $table );
1092 $wgOut->addHTML( Xml
::element( 'h2', null, wfMsg( 'history' ) ) . "\n" );
1094 if( $haveRevisions ) {
1095 # The page's stored (deleted) history:
1096 $wgOut->addHTML("<ul>");
1097 $target = urlencode( $this->mTarget
);
1098 $remaining = $revisions->numRows();
1099 $earliestLiveTime = $this->mTargetObj
->getEarliestRevTime();
1101 while( $row = $revisions->fetchObject() ) {
1103 $wgOut->addHTML( $this->formatRevisionRow( $row, $earliestLiveTime, $remaining, $sk ) );
1106 $wgOut->addHTML("</ul>");
1108 $wgOut->addWikiMsg( "nohistory" );
1112 $wgOut->addHTML( Xml
::element( 'h2', null, wfMsg( 'filehist' ) ) . "\n" );
1113 $wgOut->addHTML( "<ul>" );
1114 while( $row = $files->fetchObject() ) {
1115 $wgOut->addHTML( $this->formatFileRow( $row, $sk ) );
1118 $wgOut->addHTML( "</ul>" );
1121 if ( $this->mAllowed
) {
1122 # Slip in the hidden controls here
1123 $misc = Xml
::hidden( 'target', $this->mTarget
);
1124 $misc .= Xml
::hidden( 'wpEditToken', $wgUser->editToken() );
1125 $misc .= Xml
::closeElement( 'form' );
1126 $wgOut->addHTML( $misc );
1132 private function formatRevisionRow( $row, $earliestLiveTime, $remaining, $sk ) {
1133 global $wgUser, $wgLang;
1135 $rev = Revision
::newFromArchiveRow( $row,
1136 array( 'page' => $this->mTargetObj
->getArticleId() ) );
1138 $ts = wfTimestamp( TS_MW
, $row->ar_timestamp
);
1139 if( $this->mAllowed
) {
1140 if( $this->mInvert
){
1141 if( in_array( $ts, $this->mTargetTimestamp
) ) {
1142 $checkBox = Xml
::check( "ts$ts");
1144 $checkBox = Xml
::check( "ts$ts", true );
1147 $checkBox = Xml
::check( "ts$ts" );
1149 $titleObj = SpecialPage
::getTitleFor( "Undelete" );
1150 $pageLink = $this->getPageLink( $rev, $titleObj, $ts, $sk );
1152 if( !$rev->userCan( Revision
::DELETED_TEXT
) ) {
1153 $last = wfMsgHtml('diff');
1154 } else if( $remaining > 0 ||
($earliestLiveTime && $ts > $earliestLiveTime) ) {
1155 $last = $sk->linkKnown(
1160 'target' => $this->mTargetObj
->getPrefixedText(),
1166 $last = wfMsgHtml('diff');
1170 $pageLink = htmlspecialchars( $wgLang->timeanddate( $ts, true ) );
1171 $last = wfMsgHtml('diff');
1173 $userLink = $sk->revUserTools( $rev );
1175 if(!is_null($size = $row->ar_len
)) {
1176 $stxt = $sk->formatRevisionSize( $size );
1178 $comment = $sk->revComment( $rev );
1180 if( $wgUser->isAllowed( 'deleterevision' ) ) {
1181 if( !$rev->userCan( Revision
::DELETED_RESTRICTED
) ) {
1182 // If revision was hidden from sysops
1183 $revdlink = Xml
::tags( 'span', array( 'class'=>'mw-revdelundel-link' ),
1184 '('.wfMsgHtml('rev-delundel').')' );
1187 'type' => 'archive',
1188 'target' => $this->mTargetObj
->getPrefixedDBkey(),
1191 $revdlink = $sk->revDeleteLink( $query, $rev->isDeleted( Revision
::DELETED_RESTRICTED
) );
1195 return "<li>$checkBox $revdlink ($last) $pageLink . . $userLink $stxt $comment</li>";
1198 private function formatFileRow( $row, $sk ) {
1199 global $wgUser, $wgLang;
1201 $file = ArchivedFile
::newFromRow( $row );
1203 $ts = wfTimestamp( TS_MW
, $row->fa_timestamp
);
1204 if( $this->mAllowed
&& $row->fa_storage_key
) {
1205 $checkBox = Xml
::check( "fileid" . $row->fa_id
);
1206 $key = urlencode( $row->fa_storage_key
);
1207 $target = urlencode( $this->mTarget
);
1208 $titleObj = SpecialPage
::getTitleFor( "Undelete" );
1209 $pageLink = $this->getFileLink( $file, $titleObj, $ts, $key, $sk );
1212 $pageLink = $wgLang->timeanddate( $ts, true );
1214 $userLink = $this->getFileUser( $file, $sk );
1216 wfMsg( 'widthheight',
1217 $wgLang->formatNum( $row->fa_width
),
1218 $wgLang->formatNum( $row->fa_height
) ) .
1220 wfMsg( 'nbytes', $wgLang->formatNum( $row->fa_size
) ) .
1222 $data = htmlspecialchars( $data );
1223 $comment = $this->getFileComment( $file, $sk );
1225 if( $wgUser->isAllowed( 'deleterevision' ) ) {
1226 if( !$file->userCan(File
::DELETED_RESTRICTED
) ) {
1227 // If revision was hidden from sysops
1228 $revdlink = Xml
::tags( 'span', array( 'class'=>'mw-revdelundel-link' ), '('.wfMsgHtml('rev-delundel').')' );
1231 'type' => 'filearchive',
1232 'target' => $this->mTargetObj
->getPrefixedDBkey(),
1233 'ids' => $row->fa_id
1235 $revdlink = $sk->revDeleteLink( $query, $file->isDeleted( File
::DELETED_RESTRICTED
) );
1238 return "<li>$checkBox $revdlink $pageLink . . $userLink $data $comment</li>\n";
1242 * Fetch revision text link if it's available to all users
1245 function getPageLink( $rev, $titleObj, $ts, $sk ) {
1248 $time = htmlspecialchars( $wgLang->timeanddate( $ts, true ) );
1250 if( !$rev->userCan(Revision
::DELETED_TEXT
) ) {
1251 return '<span class="history-deleted">' . $time . '</span>';
1253 $link = $sk->linkKnown(
1258 'target' => $this->mTargetObj
->getPrefixedText(),
1262 if( $rev->isDeleted(Revision
::DELETED_TEXT
) )
1263 $link = '<span class="history-deleted">' . $link . '</span>';
1269 * Fetch image view link if it's available to all users
1272 function getFileLink( $file, $titleObj, $ts, $key, $sk ) {
1273 global $wgLang, $wgUser;
1275 if( !$file->userCan(File
::DELETED_FILE
) ) {
1276 return '<span class="history-deleted">' . $wgLang->timeanddate( $ts, true ) . '</span>';
1278 $link = $sk->linkKnown(
1280 $wgLang->timeanddate( $ts, true ),
1283 'target' => $this->mTargetObj
->getPrefixedText(),
1285 'token' => $wgUser->editToken( $key )
1288 if( $file->isDeleted(File
::DELETED_FILE
) )
1289 $link = '<span class="history-deleted">' . $link . '</span>';
1295 * Fetch file's user id if it's available to this user
1298 function getFileUser( $file, $sk ) {
1299 if( !$file->userCan(File
::DELETED_USER
) ) {
1300 return '<span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
1302 $link = $sk->userLink( $file->getRawUser(), $file->getRawUserText() ) .
1303 $sk->userToolLinks( $file->getRawUser(), $file->getRawUserText() );
1304 if( $file->isDeleted(File
::DELETED_USER
) )
1305 $link = '<span class="history-deleted">' . $link . '</span>';
1311 * Fetch file upload comment if it's available to this user
1314 function getFileComment( $file, $sk ) {
1315 if( !$file->userCan(File
::DELETED_COMMENT
) ) {
1316 return '<span class="history-deleted"><span class="comment">' . wfMsgHtml( 'rev-deleted-comment' ) . '</span></span>';
1318 $link = $sk->commentBlock( $file->getRawDescription() );
1319 if( $file->isDeleted(File
::DELETED_COMMENT
) )
1320 $link = '<span class="history-deleted">' . $link . '</span>';
1325 function undelete() {
1326 global $wgOut, $wgUser;
1327 if ( wfReadOnly() ) {
1328 $wgOut->readOnlyPage();
1331 if( !is_null( $this->mTargetObj
) ) {
1332 $archive = new PageArchive( $this->mTargetObj
);
1333 $ok = $archive->undelete(
1334 $this->mTargetTimestamp
,
1336 $this->mFileVersions
,
1337 $this->mUnsuppress
);
1339 if( is_array($ok) ) {
1340 if ( $ok[1] ) // Undeleted file count
1341 wfRunHooks( 'FileUndeleteComplete', array(
1342 $this->mTargetObj
, $this->mFileVersions
,
1343 $wgUser, $this->mComment
) );
1345 $skin = $wgUser->getSkin();
1346 $link = $skin->linkKnown( $this->mTargetObj
);
1347 $wgOut->addHTML( wfMsgWikiHtml( 'undeletedpage', $link ) );
1349 $wgOut->showFatalError( wfMsg( "cannotundelete" ) );
1350 $wgOut->addHTML( '<p>' . wfMsgHtml( "undeleterevdel" ) . '</p>' );
1353 // Show file deletion warnings and errors
1354 $status = $archive->getFileStatus();
1355 if( $status && !$status->isGood() ) {
1356 $wgOut->addWikiText( $status->getWikiText( 'undelete-error-short', 'undelete-error-long' ) );
1359 $wgOut->showFatalError( wfMsg( "cannotundelete" ) );