includes/specials/SpecialUndelete.php
<?php
/**
* Implements Special:Undelete
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup SpecialPage
*/
namespace MediaWiki\Specials;
use ArchivedFile;
use ChangesList;
use ChangeTags;
use ErrorPageError;
use File;
use IDBAccessObject;
use LocalRepo;
use LogEventsList;
use LogPage;
use MediaWiki\Cache\LinkBatch;
use MediaWiki\Cache\LinkBatchFactory;
use MediaWiki\CommentFormatter\CommentFormatter;
use MediaWiki\CommentStore\CommentStore;
use MediaWiki\Content\IContentHandlerFactory;
use MediaWiki\Context\DerivativeContext;
use MediaWiki\Html\Html;
use MediaWiki\Linker\Linker;
use MediaWiki\MainConfigNames;
use MediaWiki\Message\Message;
use MediaWiki\Page\UndeletePage;
use MediaWiki\Page\UndeletePageFactory;
use MediaWiki\Page\WikiPageFactory;
use MediaWiki\Permissions\PermissionManager;
use MediaWiki\Revision\ArchivedRevisionLookup;
use MediaWiki\Revision\RevisionArchiveRecord;
use MediaWiki\Revision\RevisionRecord;
use MediaWiki\Revision\RevisionRenderer;
use MediaWiki\Revision\RevisionStore;
use MediaWiki\Revision\SlotRecord;
use MediaWiki\SpecialPage\SpecialPage;
use MediaWiki\Status\Status;
use MediaWiki\Storage\NameTableAccessException;
use MediaWiki\Storage\NameTableStore;
use MediaWiki\Title\Title;
use MediaWiki\User\Options\UserOptionsLookup;
use MediaWiki\User\User;
use MediaWiki\Watchlist\WatchlistManager;
use OOUI\ActionFieldLayout;
use OOUI\ButtonInputWidget;
use OOUI\CheckboxInputWidget;
use OOUI\DropdownInputWidget;
use OOUI\FieldLayout;
use OOUI\FieldsetLayout;
use OOUI\FormLayout;
use OOUI\HorizontalLayout;
use OOUI\HtmlSnippet;
use OOUI\Layout;
use OOUI\PanelLayout;
use OOUI\TextInputWidget;
use OOUI\Widget;
use PageArchive;
use PermissionsError;
use RepoGroup;
use SearchEngineFactory;
use TextContent;
use UserBlockedError;
use Wikimedia\Rdbms\IConnectionProvider;
use Wikimedia\Rdbms\IResultWrapper;
use Xml;
/**
* Special page allowing users with the appropriate permissions to view
* and restore deleted content.
*
* @ingroup SpecialPage
*/
class SpecialUndelete extends SpecialPage {
/**
* Limit of revisions (Page history) to display.
* (If there are more items to display - "Load more" button will appear).
*/
private const REVISION_HISTORY_LIMIT = 500;
private $mAction;
private $mTarget;
private $mTimestamp;
private $mRestore;
private $mRevdel;
private $mInvert;
private $mFilename;
/** @var string[] */
private $mTargetTimestamp = [];
private $mAllowed;
private $mCanView;
/** @var string */
private $mComment = '';
private $mToken;
/** @var bool|null */
private $mPreview;
/** @var bool|null */
private $mDiff;
/** @var bool|null */
private $mDiffOnly;
/** @var bool|null */
private $mUnsuppress;
/** @var int[] */
private $mFileVersions = [];
/** @var bool|null */
private $mUndeleteTalk;
/** @var string|null Timestamp at which to start a "load more" request (open interval) */
private $mHistoryOffset;
/** @var Title|null */
private $mTargetObj;
/**
* @var string Search prefix
*/
private $mSearchPrefix;
private PermissionManager $permissionManager;
private RevisionStore $revisionStore;
private RevisionRenderer $revisionRenderer;
private IContentHandlerFactory $contentHandlerFactory;
private NameTableStore $changeTagDefStore;
private LinkBatchFactory $linkBatchFactory;
private LocalRepo $localRepo;
private IConnectionProvider $dbProvider;
private UserOptionsLookup $userOptionsLookup;
private WikiPageFactory $wikiPageFactory;
private SearchEngineFactory $searchEngineFactory;
private UndeletePageFactory $undeletePageFactory;
private ArchivedRevisionLookup $archivedRevisionLookup;
private CommentFormatter $commentFormatter;
private WatchlistManager $watchlistManager;
/**
* @param PermissionManager $permissionManager
* @param RevisionStore $revisionStore
* @param RevisionRenderer $revisionRenderer
* @param IContentHandlerFactory $contentHandlerFactory
* @param NameTableStore $changeTagDefStore
* @param LinkBatchFactory $linkBatchFactory
* @param RepoGroup $repoGroup
* @param IConnectionProvider $dbProvider
* @param UserOptionsLookup $userOptionsLookup
* @param WikiPageFactory $wikiPageFactory
* @param SearchEngineFactory $searchEngineFactory
* @param UndeletePageFactory $undeletePageFactory
* @param ArchivedRevisionLookup $archivedRevisionLookup
* @param CommentFormatter $commentFormatter
* @param WatchlistManager $watchlistManager
*/
public function __construct(
PermissionManager $permissionManager,
RevisionStore $revisionStore,
RevisionRenderer $revisionRenderer,
IContentHandlerFactory $contentHandlerFactory,
NameTableStore $changeTagDefStore,
LinkBatchFactory $linkBatchFactory,
RepoGroup $repoGroup,
IConnectionProvider $dbProvider,
UserOptionsLookup $userOptionsLookup,
WikiPageFactory $wikiPageFactory,
SearchEngineFactory $searchEngineFactory,
UndeletePageFactory $undeletePageFactory,
ArchivedRevisionLookup $archivedRevisionLookup,
CommentFormatter $commentFormatter,
WatchlistManager $watchlistManager
) {
parent::__construct( 'Undelete', 'deletedhistory' );
$this->permissionManager = $permissionManager;
$this->revisionStore = $revisionStore;
$this->revisionRenderer = $revisionRenderer;
$this->contentHandlerFactory = $contentHandlerFactory;
$this->changeTagDefStore = $changeTagDefStore;
$this->linkBatchFactory = $linkBatchFactory;
$this->localRepo = $repoGroup->getLocalRepo();
$this->dbProvider = $dbProvider;
$this->userOptionsLookup = $userOptionsLookup;
$this->wikiPageFactory = $wikiPageFactory;
$this->searchEngineFactory = $searchEngineFactory;
$this->undeletePageFactory = $undeletePageFactory;
$this->archivedRevisionLookup = $archivedRevisionLookup;
$this->commentFormatter = $commentFormatter;
$this->watchlistManager = $watchlistManager;
}
public function doesWrites() {
return true;
}
private function loadRequest( $par ) {
$request = $this->getRequest();
$user = $this->getUser();
$this->mAction = $request->getRawVal( 'action' );
if ( $par !== null && $par !== '' ) {
$this->mTarget = $par;
} else {
$this->mTarget = $request->getVal( 'target' );
}
$this->mTargetObj = null;
if ( $this->mTarget !== null && $this->mTarget !== '' ) {
$this->mTargetObj = Title::newFromText( $this->mTarget );
}
$this->mSearchPrefix = $request->getText( 'prefix' );
$time = $request->getVal( 'timestamp' );
$this->mTimestamp = $time ? wfTimestamp( TS_MW, $time ) : '';
$this->mFilename = $request->getVal( 'file' );
$posted = $request->wasPosted() &&
$user->matchEditToken( $request->getVal( 'wpEditToken' ) );
$this->mRestore = $request->getCheck( 'restore' ) && $posted;
$this->mRevdel = $request->getCheck( 'revdel' ) && $posted;
$this->mInvert = $request->getCheck( 'invert' ) && $posted;
$this->mPreview = $request->getCheck( 'preview' ) && $posted;
$this->mDiff = $request->getCheck( 'diff' );
$this->mDiffOnly = $request->getBool( 'diffonly',
$this->userOptionsLookup->getOption( $this->getUser(), 'diffonly' ) );
$commentList = $request->getText( 'wpCommentList', 'other' );
$comment = $request->getText( 'wpComment' );
if ( $commentList === 'other' ) {
$this->mComment = $comment;
} elseif ( $comment !== '' ) {
$this->mComment = $commentList . $this->msg( 'colon-separator' )->inContentLanguage()->text() . $comment;
} else {
$this->mComment = $commentList;
}
$this->mUnsuppress = $request->getVal( 'wpUnsuppress' ) &&
$this->permissionManager->userHasRight( $user, 'suppressrevision' );
$this->mToken = $request->getVal( 'token' );
$this->mUndeleteTalk = $request->getCheck( 'undeletetalk' );
$this->mHistoryOffset = $request->getVal( 'historyoffset' );
if ( $this->isAllowed( 'undelete' ) ) {
$this->mAllowed = true; // user can restore
$this->mCanView = true; // user can view content
} elseif ( $this->isAllowed( 'deletedtext' ) ) {
$this->mAllowed = false; // user cannot restore
$this->mCanView = true; // user can view content
$this->mRestore = false;
} else { // user can only view the list of revisions
$this->mAllowed = false;
$this->mCanView = false;
$this->mTimestamp = '';
$this->mRestore = false;
}
if ( $this->mRestore || $this->mInvert ) {
$timestamps = [];
$this->mFileVersions = [];
foreach ( $request->getValues() as $key => $val ) {
$matches = [];
if ( preg_match( '/^ts(\d{14})$/', $key, $matches ) ) {
$timestamps[] = $matches[1];
}
if ( preg_match( '/^fileid(\d+)$/', $key, $matches ) ) {
$this->mFileVersions[] = intval( $matches[1] );
}
}
rsort( $timestamps );
$this->mTargetTimestamp = $timestamps;
}
}
/**
* Checks whether a user is allowed the permission for the
* specific title if one is set.
*
* @param string $permission
* @param User|null $user
* @return bool
*/
protected function isAllowed( $permission, User $user = null ) {
$user = $user ?: $this->getUser();
$block = $user->getBlock();
if ( $this->mTargetObj !== null ) {
return $this->permissionManager->userCan( $permission, $user, $this->mTargetObj );
} else {
$hasRight = $this->permissionManager->userHasRight( $user, $permission );
$sitewideBlock = $block && $block->isSitewide();
return $permission === 'undelete' ? ( $hasRight && !$sitewideBlock ) : $hasRight;
}
}
public function userCanExecute( User $user ) {
return $this->isAllowed( $this->mRestriction, $user );
}
/**
* @inheritDoc
*/
public function checkPermissions() {
$user = $this->getUser();
// First check if user has the right to use this page. If not,
// show a permissions error whether they are blocked or not.
if ( !parent::userCanExecute( $user ) ) {
$this->displayRestrictionError();
}
// If a user has the right to use this page, but is blocked from
// the target, show a block error.
if (
$this->mTargetObj && $this->permissionManager->isBlockedFrom( $user, $this->mTargetObj ) ) {
// @phan-suppress-next-line PhanTypeMismatchArgumentNullable Block is checked and not null
throw new UserBlockedError( $user->getBlock() );
}
// Finally, do the comprehensive permission check via isAllowed.
if ( !$this->userCanExecute( $user ) ) {
$this->displayRestrictionError();
}
}
public function execute( $par ) {
$this->useTransactionalTimeLimit();
$user = $this->getUser();
$this->setHeaders();
$this->outputHeader();
$this->addHelpLink( 'Help:Deletion_and_undeletion' );
$this->loadRequest( $par );
$this->checkPermissions(); // Needs to be after mTargetObj is set
$out = $this->getOutput();
if ( $this->mTargetObj === null ) {
$out->addWikiMsg( 'undelete-header' );
# Not all users can just browse every deleted page from the list
if ( $this->permissionManager->userHasRight( $user, 'browsearchive' ) ) {
$this->showSearchForm();
}
return;
}
$this->addHelpLink( 'Help:Undelete' );
if ( $this->mAllowed ) {
$out->setPageTitleMsg( $this->msg( 'undeletepage' ) );
} else {
$out->setPageTitleMsg( $this->msg( 'viewdeletedpage' ) );
}
$this->getSkin()->setRelevantTitle( $this->mTargetObj );
if ( $this->mTimestamp !== '' ) {
$this->showRevision( $this->mTimestamp );
} elseif ( $this->mFilename !== null && $this->mTargetObj->inNamespace( NS_FILE ) ) {
$file = new ArchivedFile( $this->mTargetObj, 0, $this->mFilename );
// Check if user is allowed to see this file
if ( !$file->exists() ) {
$out->addWikiMsg( 'filedelete-nofile', $this->mFilename );
} elseif ( !$file->userCan( File::DELETED_FILE, $user ) ) {
if ( $file->isDeleted( File::DELETED_RESTRICTED ) ) {
throw new PermissionsError( 'suppressrevision' );
} else {
throw new PermissionsError( 'deletedtext' );
}
} elseif ( !$user->matchEditToken( $this->mToken, $this->mFilename ) ) {
$this->showFileConfirmationForm( $this->mFilename );
} else {
$this->showFile( $this->mFilename );
}
} elseif ( $this->mAction === 'submit' ) {
if ( $this->mRestore ) {
$this->undelete();
} elseif ( $this->mRevdel ) {
$this->redirectToRevDel();
}
} elseif ( $this->mAction === 'render' ) {
$this->showMoreHistory();
} else {
$this->showHistory();
}
}
/**
* Convert submitted form data to format expected by RevisionDelete and
* redirect the request
*/
private function redirectToRevDel() {
$revisions = [];
foreach ( $this->getRequest()->getValues() as $key => $val ) {
$matches = [];
if ( preg_match( "/^ts(\d{14})$/", $key, $matches ) ) {
$revisionRecord = $this->archivedRevisionLookup
->getRevisionRecordByTimestamp( $this->mTargetObj, $matches[1] );
if ( $revisionRecord ) {
// Can return null
$revisions[ $revisionRecord->getId() ] = 1;
}
}
}
$query = [
'type' => 'revision',
'ids' => $revisions,
'target' => $this->mTargetObj->getPrefixedText()
];
$url = SpecialPage::getTitleFor( 'Revisiondelete' )->getFullURL( $query );
$this->getOutput()->redirect( $url );
}
private function showSearchForm() {
$out = $this->getOutput();
$out->setPageTitleMsg( $this->msg( 'undelete-search-title' ) );
$fuzzySearch = $this->getRequest()->getVal( 'fuzzy', '1' );
$out->enableOOUI();
$fields = [];
$fields[] = new ActionFieldLayout(
new TextInputWidget( [
'name' => 'prefix',
'inputId' => 'prefix',
'infusable' => true,
'value' => $this->mSearchPrefix,
'autofocus' => true,
] ),
new ButtonInputWidget( [
'label' => $this->msg( 'undelete-search-submit' )->text(),
'flags' => [ 'primary', 'progressive' ],
'inputId' => 'searchUndelete',
'type' => 'submit',
] ),
[
'label' => new HtmlSnippet(
$this->msg(
$fuzzySearch ? 'undelete-search-full' : 'undelete-search-prefix'
)->parse()
),
'align' => 'left',
]
);
$fieldset = new FieldsetLayout( [
'label' => $this->msg( 'undelete-search-box' )->text(),
'items' => $fields,
] );
$form = new FormLayout( [
'method' => 'get',
'action' => wfScript(),
] );
$form->appendContent(
$fieldset,
new HtmlSnippet(
Html::hidden( 'title', $this->getPageTitle()->getPrefixedDBkey() ) .
Html::hidden( 'fuzzy', $fuzzySearch )
)
);
$out->addHTML(
new PanelLayout( [
'expanded' => false,
'padded' => true,
'framed' => true,
'content' => $form,
] )
);
# List undeletable articles
if ( $this->mSearchPrefix ) {
// For now, we enable search engine match only when specifically asked to
// by using fuzzy=1 parameter.
if ( $fuzzySearch ) {
$result = PageArchive::listPagesBySearch( $this->mSearchPrefix );
} else {
$result = PageArchive::listPagesByPrefix( $this->mSearchPrefix );
}
$this->showList( $result );
}
}
/**
* Generic list of deleted pages
*
* @param IResultWrapper $result
* @return bool
*/
private function showList( $result ) {
$out = $this->getOutput();
if ( $result->numRows() == 0 ) {
$out->addWikiMsg( 'undelete-no-results' );
return false;
}
$out->addWikiMsg( 'undeletepagetext', $this->getLanguage()->formatNum( $result->numRows() ) );
$linkRenderer = $this->getLinkRenderer();
$undelete = $this->getPageTitle();
$out->addHTML( "<ul id='undeleteResultsList'>\n" );
foreach ( $result as $row ) {
$title = Title::makeTitleSafe( $row->ar_namespace, $row->ar_title );
if ( $title !== null ) {
$item = $linkRenderer->makeKnownLink(
$undelete,
$title->getPrefixedText(),
[],
[ 'target' => $title->getPrefixedText() ]
);
} else {
// The title is no longer valid, show as text
$item = Html::element(
'span',
[ 'class' => 'mw-invalidtitle' ],
Linker::getInvalidTitleDescription(
$this->getContext(),
$row->ar_namespace,
$row->ar_title
)
);
}
$revs = $this->msg( 'undeleterevisions' )->numParams( $row->count )->parse();
$out->addHTML(
Html::rawElement(
'li',
[ 'class' => 'undeleteResult' ],
$item . $this->msg( 'word-separator' )->escaped() .
$this->msg( 'parentheses' )->rawParams( $revs )->escaped()
)
);
}
$result->free();
$out->addHTML( "</ul>\n" );
return true;
}
private function showRevision( $timestamp ) {
if ( !preg_match( '/[0-9]{14}/', $timestamp ) ) {
return;
}
$out = $this->getOutput();
$out->addModuleStyles( 'mediawiki.interface.helpers.styles' );
// When viewing a specific revision, add a subtitle link back to the overall
// history, see T284114
$listLink = $this->getLinkRenderer()->makeKnownLink(
$this->getPageTitle(),
$this->msg( 'undelete-back-to-list' )->text(),
[],
[ 'target' => $this->mTargetObj->getPrefixedText() ]
);
// same < arrow as with subpages
$subtitle = "< $listLink";
$out->setSubtitle( $subtitle );
$archive = new PageArchive( $this->mTargetObj );
// FIXME: This hook must be deprecated, passing PageArchive by ref is awful.
if ( !$this->getHookRunner()->onUndeleteForm__showRevision(
$archive, $this->mTargetObj )
) {
return;
}
$revRecord = $this->archivedRevisionLookup->getRevisionRecordByTimestamp( $this->mTargetObj, $timestamp );
$user = $this->getUser();
if ( !$revRecord ) {
$out->addWikiMsg( 'undeleterevision-missing' );
return;
}
if ( $revRecord->isDeleted( RevisionRecord::DELETED_TEXT ) ) {
// Used in wikilinks, should not contain whitespaces
$titleText = $this->mTargetObj->getPrefixedDBkey();
if ( !$revRecord->userCan( RevisionRecord::DELETED_TEXT, $this->getAuthority() ) ) {
$msg = $revRecord->isDeleted( RevisionRecord::DELETED_RESTRICTED )
? [ 'rev-suppressed-text-permission', $titleText ]
: [ 'rev-deleted-text-permission', $titleText ];
$out->addHTML(
Html::warningBox(
$this->msg( $msg[0], $msg[1] )->parse(),
'plainlinks'
)
);
return;
}
$msg = $revRecord->isDeleted( RevisionRecord::DELETED_RESTRICTED )
? [ 'rev-suppressed-text-view', $titleText ]
: [ 'rev-deleted-text-view', $titleText ];
$out->addHTML(
Html::warningBox(
$this->msg( $msg[0], $msg[1] )->parse(),
'plainlinks'
)
);
// and we are allowed to see...
}
if ( $this->mDiff ) {
$previousRevRecord = $this->archivedRevisionLookup
->getPreviousRevisionRecord( $this->mTargetObj, $timestamp );
if ( $previousRevRecord ) {
$this->showDiff( $previousRevRecord, $revRecord );
if ( $this->mDiffOnly ) {
return;
}
$out->addHTML( '<hr />' );
} else {
$out->addWikiMsg( 'undelete-nodiff' );
}
}
$link = $this->getLinkRenderer()->makeKnownLink(
$this->getPageTitle( $this->mTargetObj->getPrefixedDBkey() ),
$this->mTargetObj->getPrefixedText()
);
$lang = $this->getLanguage();
// date and time are separate parameters to facilitate localisation.
// $time is kept for backward compat reasons.
$time = $lang->userTimeAndDate( $timestamp, $user );
$d = $lang->userDate( $timestamp, $user );
$t = $lang->userTime( $timestamp, $user );
$userLink = Linker::revUserTools( $revRecord );
$content = $revRecord->getContent(
SlotRecord::MAIN,
RevisionRecord::FOR_THIS_USER,
$user
);
// TODO: MCR: this will have to become something like $hasTextSlots and $hasNonTextSlots
$isText = ( $content instanceof TextContent );
$undeleteRevisionContent = '';
// Revision delete links
if ( !$this->mDiff ) {
$revdel = Linker::getRevDeleteLink(
$user,
$revRecord,
$this->mTargetObj
);
if ( $revdel ) {
$undeleteRevisionContent = $revdel . ' ';
}
}
$undeleteRevisionContent .= $out->msg(
'undelete-revision',
Message::rawParam( $link ),
$time,
Message::rawParam( $userLink ),
$d,
$t
)->parseAsBlock();
if ( $this->mPreview || $isText ) {
$out->addHTML(
Html::warningBox(
$undeleteRevisionContent,
'mw-undelete-revision'
)
);
} else {
$out->addHTML(
Html::rawElement(
'div',
[ 'class' => 'mw-undelete-revision', ],
$undeleteRevisionContent
)
);
}
if ( $this->mPreview || !$isText ) {
// NOTE: non-text content has no source view, so always use rendered preview
$popts = $out->parserOptions();
$rendered = $this->revisionRenderer->getRenderedRevision(
$revRecord,
$popts,
$user,
[ 'audience' => RevisionRecord::FOR_THIS_USER, 'causeAction' => 'undelete-preview' ]
);
// Fail hard if the audience check fails, since we already checked
// at the beginning of this method.
$pout = $rendered->getRevisionParserOutput();
$out->addParserOutput( $pout, [
'enableSectionEditLinks' => false,
] );
}
$out->enableOOUI();
$buttonFields = [];
if ( $isText ) {
'@phan-var TextContent $content';
// TODO: MCR: make this work for multiple slots
// source view for textual content
$sourceView = Xml::element( 'textarea', [
'readonly' => 'readonly',
'cols' => 80,
'rows' => 25
], $content->getText() . "\n" );
$buttonFields[] = new ButtonInputWidget( [
'type' => 'submit',
'name' => 'preview',
'label' => $this->msg( 'showpreview' )->text()
] );
} else {
$sourceView = '';
}
$buttonFields[] = new ButtonInputWidget( [
'name' => 'diff',
'type' => 'submit',
'label' => $this->msg( 'showdiff' )->text()
] );
$out->addHTML(
$sourceView .
Xml::openElement( 'div', [
'style' => 'clear: both' ] ) .
Xml::openElement( 'form', [
'method' => 'post',
'action' => $this->getPageTitle()->getLocalURL( [ 'action' => 'submit' ] ) ] ) .
Xml::element( 'input', [
'type' => 'hidden',
'name' => 'target',
'value' => $this->mTargetObj->getPrefixedDBkey() ] ) .
Xml::element( 'input', [
'type' => 'hidden',
'name' => 'timestamp',
'value' => $timestamp ] ) .
Xml::element( 'input', [
'type' => 'hidden',
'name' => 'wpEditToken',
'value' => $user->getEditToken() ] ) .
new FieldLayout(
new Widget( [
'content' => new HorizontalLayout( [
'items' => $buttonFields
] )
] )
) .
Xml::closeElement( 'form' ) .
Xml::closeElement( 'div' )
);
}
/**
* Build a diff display between this and the previous either deleted
* or non-deleted edit.
*
* @param RevisionRecord $previousRevRecord
* @param RevisionRecord $currentRevRecord
*/
private function showDiff(
RevisionRecord $previousRevRecord,
RevisionRecord $currentRevRecord
) {
$currentTitle = Title::newFromLinkTarget( $currentRevRecord->getPageAsLinkTarget() );
$diffContext = new DerivativeContext( $this->getContext() );
$diffContext->setTitle( $currentTitle );
$diffContext->setWikiPage( $this->wikiPageFactory->newFromTitle( $currentTitle ) );
$contentModel = $currentRevRecord->getSlot(
SlotRecord::MAIN,
RevisionRecord::RAW
)->getModel();
$diffEngine = $this->contentHandlerFactory->getContentHandler( $contentModel )
->createDifferenceEngine( $diffContext );
$diffEngine->setRevisions( $previousRevRecord, $currentRevRecord );
$diffEngine->showDiffStyle();
$formattedDiff = $diffEngine->getDiff(
$this->diffHeader( $previousRevRecord, 'o' ),
$this->diffHeader( $currentRevRecord, 'n' )
);
$this->getOutput()->addHTML( "<div>$formattedDiff</div>\n" );
}
/**
* @param RevisionRecord $revRecord
* @param string $prefix
* @return string
*/
private function diffHeader( RevisionRecord $revRecord, $prefix ) {
if ( $revRecord instanceof RevisionArchiveRecord ) {
// Revision in the archive table, only viewable via this special page
$targetPage = $this->getPageTitle();
$targetQuery = [
'target' => $this->mTargetObj->getPrefixedText(),
'timestamp' => wfTimestamp( TS_MW, $revRecord->getTimestamp() )
];
} else {
// Revision in the revision table, viewable by oldid
$targetPage = $revRecord->getPageAsLinkTarget();
$targetQuery = [ 'oldid' => $revRecord->getId() ];
}
// Add show/hide deletion links if available
$user = $this->getUser();
$lang = $this->getLanguage();
$rdel = Linker::getRevDeleteLink( $user, $revRecord, $this->mTargetObj );
if ( $rdel ) {
$rdel = " $rdel";
}
$minor = $revRecord->isMinor() ? ChangesList::flag( 'minor' ) : '';
$dbr = $this->dbProvider->getReplicaDatabase();
$tagIds = $dbr->newSelectQueryBuilder()
->select( 'ct_tag_id' )
->from( 'change_tag' )
->where( [ 'ct_rev_id' => $revRecord->getId() ] )
->caller( __METHOD__ )->fetchFieldValues();
$tags = [];
foreach ( $tagIds as $tagId ) {
try {
$tags[] = $this->changeTagDefStore->getName( (int)$tagId );
} catch ( NameTableAccessException $exception ) {
continue;
}
}
$tags = implode( ',', $tags );
$tagSummary = ChangeTags::formatSummaryRow( $tags, 'deleteddiff', $this->getContext() );
$asof = $this->getLinkRenderer()->makeLink(
$targetPage,
$this->msg(
'revisionasof',
$lang->userTimeAndDate( $revRecord->getTimestamp(), $user ),
$lang->userDate( $revRecord->getTimestamp(), $user ),
$lang->userTime( $revRecord->getTimestamp(), $user )
)->text(),
[],
$targetQuery
);
if ( $revRecord->isDeleted( RevisionRecord::DELETED_TEXT ) ) {
$asof = Html::rawElement(
'span',
[ 'class' => Linker::getRevisionDeletedClass( $revRecord ) ],
$asof
);
}
// FIXME This is reimplementing DifferenceEngine#getRevisionHeader
// and partially #showDiffPage, but worse
return '<div id="mw-diff-' . $prefix . 'title1"><strong>' .
$asof .
'</strong></div>' .
'<div id="mw-diff-' . $prefix . 'title2">' .
Linker::revUserTools( $revRecord ) . '<br />' .
'</div>' .
'<div id="mw-diff-' . $prefix . 'title3">' .
$minor . $this->commentFormatter->formatRevision( $revRecord, $user ) . $rdel . '<br />' .
'</div>' .
'<div id="mw-diff-' . $prefix . 'title5">' .
$tagSummary[0] . '<br />' .
'</div>';
}
/**
* Show a form confirming whether a tokenless user really wants to see a file
* @param string $key
*/
private function showFileConfirmationForm( $key ) {
$out = $this->getOutput();
$lang = $this->getLanguage();
$user = $this->getUser();
$file = new ArchivedFile( $this->mTargetObj, 0, $this->mFilename );
$out->addWikiMsg( 'undelete-show-file-confirm',
$this->mTargetObj->getText(),
$lang->userDate( $file->getTimestamp(), $user ),
$lang->userTime( $file->getTimestamp(), $user ) );
$out->addHTML(
Xml::openElement( 'form', [
'method' => 'POST',
'action' => $this->getPageTitle()->getLocalURL( [
'target' => $this->mTarget,
'file' => $key,
'token' => $user->getEditToken( $key ),
] ),
]
) .
Xml::submitButton( $this->msg( 'undelete-show-file-submit' )->text() ) .
'</form>'
);
}
/**
* Show a deleted file version requested by the visitor.
* @param string $key
*/
private function showFile( $key ) {
$this->getOutput()->disable();
# We mustn't allow the output to be CDN cached, otherwise
# if an admin previews a deleted image, and it's cached, then
# a user without appropriate permissions can toddle off and
# nab the image, and CDN will serve it
$response = $this->getRequest()->response();
$response->header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', 0 ) . ' GMT' );
$response->header( 'Cache-Control: no-cache, no-store, max-age=0, must-revalidate' );
$path = $this->localRepo->getZonePath( 'deleted' ) . '/' . $this->localRepo->getDeletedHashPath( $key ) . $key;
$this->localRepo->streamFileWithStatus( $path );
}
/**
* @param LinkBatch $batch
* @param IResultWrapper $revisions
*/
private function addRevisionsToBatch( LinkBatch $batch, IResultWrapper $revisions ) {
foreach ( $revisions as $row ) {
$batch->add( NS_USER, $row->ar_user_text );
$batch->add( NS_USER_TALK, $row->ar_user_text );
}
}
/**
* @param LinkBatch $batch
* @param IResultWrapper $files
*/
private function addFilesToBatch( LinkBatch $batch, IResultWrapper $files ) {
foreach ( $files as $row ) {
$batch->add( NS_USER, $row->fa_user_text );
$batch->add( NS_USER_TALK, $row->fa_user_text );
}
}
/**
* Handle XHR "show more history" requests (T249977)
*/
protected function showMoreHistory() {
$out = $this->getOutput();
$out->setArticleBodyOnly( true );
$dbr = $this->dbProvider->getReplicaDatabase();
if ( $this->mHistoryOffset ) {
$extraConds = [ $dbr->expr( 'ar_timestamp', '<', $dbr->timestamp( $this->mHistoryOffset ) ) ];
} else {
$extraConds = [];
}
$revisions = $this->archivedRevisionLookup->listRevisions(
$this->mTargetObj,
$extraConds,
self::REVISION_HISTORY_LIMIT + 1
);
$batch = $this->linkBatchFactory->newLinkBatch();
$this->addRevisionsToBatch( $batch, $revisions );
$batch->execute();
$out->addHTML( $this->formatRevisionHistory( $revisions ) );
if ( $revisions->numRows() > self::REVISION_HISTORY_LIMIT ) {
// Indicate to JS that the "show more" button should remain active
$out->setStatusCode( 206 );
}
}
/**
* Generate the <ul> element representing a list of deleted revisions
*
* @param IResultWrapper $revisions
* @return string
*/
protected function formatRevisionHistory( IResultWrapper $revisions ) {
$history = Html::openElement( 'ul', [ 'class' => 'mw-undelete-revlist' ] );
// Exclude the last data row if there is more data than history limit amount
$numRevisions = $revisions->numRows();
$displayCount = min( $numRevisions, self::REVISION_HISTORY_LIMIT );
$firstRev = $this->revisionStore->getFirstRevision( $this->mTargetObj );
$earliestLiveTime = $firstRev ? $firstRev->getTimestamp() : null;
$revisions->rewind();
for ( $i = 0; $i < $displayCount; $i++ ) {
$row = $revisions->fetchObject();
// The $remaining parameter controls diff links and so must
// include the undisplayed row beyond the display limit.
$history .= $this->formatRevisionRow( $row, $earliestLiveTime, $numRevisions - $i );
}
$history .= Html::closeElement( 'ul' );
return $history;
}
protected function showHistory() {
$this->checkReadOnly();
$out = $this->getOutput();
if ( $this->mAllowed ) {
$out->addModules( 'mediawiki.misc-authed-ooui' );
$out->addModuleStyles( 'mediawiki.special' );
}
$out->addModuleStyles( 'mediawiki.interface.helpers.styles' );
$out->wrapWikiMsg(
"<div class='mw-undelete-pagetitle'>\n$1\n</div>\n",
[ 'undeletepagetitle', wfEscapeWikiText( $this->mTargetObj->getPrefixedText() ) ]
);
$archive = new PageArchive( $this->mTargetObj );
// FIXME: This hook must be deprecated, passing PageArchive by ref is awful.
$this->getHookRunner()->onUndeleteForm__showHistory( $archive, $this->mTargetObj );
$out->addHTML( Html::openElement( 'div', [ 'class' => 'mw-undelete-history' ] ) );
if ( $this->mAllowed ) {
$out->addWikiMsg( 'undeletehistory' );
$out->addWikiMsg( 'undeleterevdel' );
} else {
$out->addWikiMsg( 'undeletehistorynoadmin' );
}
$out->addHTML( Html::closeElement( 'div' ) );
# List all stored revisions
$revisions = $this->archivedRevisionLookup->listRevisions(
$this->mTargetObj,
[],
self::REVISION_HISTORY_LIMIT + 1
);
$files = $archive->listFiles();
$numRevisions = $revisions->numRows();
$showLoadMore = $numRevisions > self::REVISION_HISTORY_LIMIT;
$haveRevisions = $numRevisions > 0;
$haveFiles = $files && $files->numRows() > 0;
# Batch existence check on user and talk pages
if ( $haveRevisions || $haveFiles ) {
$batch = $this->linkBatchFactory->newLinkBatch();
$this->addRevisionsToBatch( $batch, $revisions );
if ( $haveFiles ) {
// @phan-suppress-next-line PhanTypeMismatchArgumentNullable -- $files is non-null
$this->addFilesToBatch( $batch, $files );
}
$batch->execute();
}
if ( $this->mAllowed ) {
$out->enableOOUI();
$action = $this->getPageTitle()->getLocalURL( [ 'action' => 'submit' ] );
# Start the form here
$form = new FormLayout( [
'method' => 'post',
'action' => $action,
'id' => 'undelete',
] );
}
# Show relevant lines from the deletion log:
$deleteLogPage = new LogPage( 'delete' );
$out->addHTML( Xml::element( 'h2', null, $deleteLogPage->getName()->text() ) . "\n" );
LogEventsList::showLogExtract( $out, 'delete', $this->mTargetObj );
# Show relevant lines from the suppression log:
$suppressLogPage = new LogPage( 'suppress' );
if ( $this->permissionManager->userHasRight( $this->getUser(), 'suppressionlog' ) ) {
$out->addHTML( Xml::element( 'h2', null, $suppressLogPage->getName()->text() ) . "\n" );
LogEventsList::showLogExtract( $out, 'suppress', $this->mTargetObj );
}
if ( $this->mAllowed && ( $haveRevisions || $haveFiles ) ) {
$unsuppressAllowed = $this->permissionManager->userHasRight( $this->getUser(), 'suppressrevision' );
$fields = [];
$fields[] = new Layout( [
'content' => new HtmlSnippet( $this->msg( 'undeleteextrahelp' )->parseAsBlock() )
] );
$dropdownComment = $this->msg( 'undelete-comment-dropdown' )
->page( $this->mTargetObj )->inContentLanguage()->text();
// Add additional specific reasons for unsuppress
if ( $unsuppressAllowed ) {
$dropdownComment .= "\n" . $this->msg( 'undelete-comment-dropdown-unsuppress' )
->page( $this->mTargetObj )->inContentLanguage()->text();
}
$options = Xml::listDropdownOptions(
$dropdownComment,
[ 'other' => $this->msg( 'undeletecommentotherlist' )->text() ]
);
$options = Xml::listDropdownOptionsOoui( $options );
$fields[] = new FieldLayout(
new DropdownInputWidget( [
'name' => 'wpCommentList',
'inputId' => 'wpCommentList',
'infusable' => true,
'value' => $this->getRequest()->getText( 'wpCommentList', 'other' ),
'options' => $options,
] ),
[
'label' => $this->msg( 'undeletecomment' )->text(),
'align' => 'top',
]
);
$fields[] = new FieldLayout(
new TextInputWidget( [
'name' => 'wpComment',
'inputId' => 'wpComment',
'infusable' => true,
'value' => $this->getRequest()->getText( 'wpComment' ),
'autofocus' => true,
// HTML maxlength uses "UTF-16 code units", which means that characters outside BMP
// (e.g. emojis) count for two each. This limit is overridden in JS to instead count
// Unicode codepoints.
'maxLength' => CommentStore::COMMENT_CHARACTER_LIMIT,
] ),
[
'label' => $this->msg( 'undeleteothercomment' )->text(),
'align' => 'top',
]
);
if ( $this->getUser()->isRegistered() ) {
$checkWatch = $this->watchlistManager->isWatched( $this->getUser(), $this->mTargetObj )
|| $this->getRequest()->getText( 'wpWatch' );
$fields[] = new FieldLayout(
new CheckboxInputWidget( [
'name' => 'wpWatch',
'inputId' => 'mw-undelete-watch',
'value' => '1',
'selected' => $checkWatch,
] ),
[
'label' => $this->msg( 'watchthis' )->text(),
'align' => 'inline',
]
);
}
if ( $unsuppressAllowed ) {
$fields[] = new FieldLayout(
new CheckboxInputWidget( [
'name' => 'wpUnsuppress',
'inputId' => 'mw-undelete-unsuppress',
'value' => '1',
] ),
[
'label' => $this->msg( 'revdelete-unsuppress' )->text(),
'align' => 'inline',
]
);
}
$undelPage = $this->undeletePageFactory->newUndeletePage(
$this->wikiPageFactory->newFromTitle( $this->mTargetObj ),
$this->getContext()->getAuthority()
);
if ( $undelPage->canProbablyUndeleteAssociatedTalk()->isGood() ) {
$fields[] = new FieldLayout(
new CheckboxInputWidget( [
'name' => 'undeletetalk',
'inputId' => 'mw-undelete-undeletetalk',
'selected' => false,
] ),
[
'label' => $this->msg( 'undelete-undeletetalk' )->text(),
'align' => 'inline',
]
);
}
$fields[] = new FieldLayout(
new Widget( [
'content' => new HorizontalLayout( [
'items' => [
new ButtonInputWidget( [
'name' => 'restore',
'inputId' => 'mw-undelete-submit',
'value' => '1',
'label' => $this->msg( 'undeletebtn' )->text(),
'flags' => [ 'primary', 'progressive' ],
'type' => 'submit',
] ),
new ButtonInputWidget( [
'name' => 'invert',
'inputId' => 'mw-undelete-invert',
'value' => '1',
'label' => $this->msg( 'undeleteinvert' )->text()
] ),
]
] )
] )
);
$fieldset = new FieldsetLayout( [
'label' => $this->msg( 'undelete-fieldset-title' )->text(),
'id' => 'mw-undelete-table',
'items' => $fields,
] );
$link = '';
if ( $this->getAuthority()->isAllowed( 'editinterface' ) ) {
if ( $unsuppressAllowed ) {
$link .= $this->getLinkRenderer()->makeKnownLink(
$this->msg( 'undelete-comment-dropdown-unsuppress' )->inContentLanguage()->getTitle(),
$this->msg( 'undelete-edit-commentlist-unsuppress' )->text(),
[],
[ 'action' => 'edit' ]
);
$link .= $this->msg( 'pipe-separator' )->escaped();
}
$link .= $this->getLinkRenderer()->makeKnownLink(
$this->msg( 'undelete-comment-dropdown' )->inContentLanguage()->getTitle(),
$this->msg( 'undelete-edit-commentlist' )->text(),
[],
[ 'action' => 'edit' ]
);
$link = Html::rawElement( 'p', [ 'class' => 'mw-undelete-editcomments' ], $link );
}
// @phan-suppress-next-line PhanPossiblyUndeclaredVariable form is set, when used here
$form->appendContent(
new PanelLayout( [
'expanded' => false,
'padded' => true,
'framed' => true,
'content' => $fieldset,
] ),
new HtmlSnippet(
$link .
Html::hidden( 'target', $this->mTarget ) .
Html::hidden( 'wpEditToken', $this->getUser()->getEditToken() )
)
);
}
$history = '';
$history .= Xml::element( 'h2', null, $this->msg( 'history' )->text() ) . "\n";
if ( $haveRevisions ) {
# Show the page's stored (deleted) history
if ( $this->permissionManager->userHasRight( $this->getUser(), 'deleterevision' ) ) {
$history .= Html::element(
'button',
[
'name' => 'revdel',
'type' => 'submit',
'class' => 'deleterevision-log-submit mw-log-deleterevision-button'
],
$this->msg( 'showhideselectedversions' )->text()
) . "\n";
}
$history .= $this->formatRevisionHistory( $revisions );
if ( $showLoadMore ) {
$history .=
Html::openElement( 'div' ) .
Html::element(
'span',
[ 'id' => 'mw-load-more-revisions' ],
$this->msg( 'undelete-load-more-revisions' )->text()
) .
Html::closeElement( 'div' ) .
"\n";
}
} else {
$out->addWikiMsg( 'nohistory' );
}
if ( $haveFiles ) {
$history .= Xml::element( 'h2', null, $this->msg( 'filehist' )->text() ) . "\n";
$history .= Html::openElement( 'ul', [ 'class' => 'mw-undelete-revlist' ] );
foreach ( $files as $row ) {
$history .= $this->formatFileRow( $row );
}
$files->free();
$history .= Html::closeElement( 'ul' );
}
if ( $this->mAllowed ) {
# Slip in the hidden controls here
$misc = Html::hidden( 'target', $this->mTarget );
$misc .= Html::hidden( 'wpEditToken', $this->getUser()->getEditToken() );
$history .= $misc;
// @phan-suppress-next-line PhanPossiblyUndeclaredVariable form is set, when used here
$form->appendContent( new HtmlSnippet( $history ) );
// @phan-suppress-next-line PhanPossiblyUndeclaredVariable form is set, when used here
$out->addHTML( (string)$form );
} else {
$out->addHTML( $history );
}
return true;
}
protected function formatRevisionRow( $row, $earliestLiveTime, $remaining ) {
$revRecord = $this->revisionStore->newRevisionFromArchiveRow(
$row,
IDBAccessObject::READ_NORMAL,
$this->mTargetObj
);
$revTextSize = '';
$ts = wfTimestamp( TS_MW, $row->ar_timestamp );
// Build checkboxen...
if ( $this->mAllowed ) {
if ( $this->mInvert ) {
if ( in_array( $ts, $this->mTargetTimestamp ) ) {
$checkBox = Xml::check( "ts$ts" );
} else {
$checkBox = Xml::check( "ts$ts", true );
}
} else {
$checkBox = Xml::check( "ts$ts" );
}
} else {
$checkBox = '';
}
// Build page & diff links...
$user = $this->getUser();
if ( $this->mCanView ) {
$titleObj = $this->getPageTitle();
# Last link
if ( !$revRecord->userCan( RevisionRecord::DELETED_TEXT, $this->getAuthority() ) ) {
$pageLink = htmlspecialchars( $this->getLanguage()->userTimeAndDate( $ts, $user ) );
$last = $this->msg( 'diff' )->escaped();
} elseif ( $remaining > 0 || ( $earliestLiveTime && $ts > $earliestLiveTime ) ) {
$pageLink = $this->getPageLink( $revRecord, $titleObj, $ts );
$last = $this->getLinkRenderer()->makeKnownLink(
$titleObj,
$this->msg( 'diff' )->text(),
[],
[
'target' => $this->mTargetObj->getPrefixedText(),
'timestamp' => $ts,
'diff' => 'prev'
]
);
} else {
$pageLink = $this->getPageLink( $revRecord, $titleObj, $ts );
$last = $this->msg( 'diff' )->escaped();
}
} else {
$pageLink = htmlspecialchars( $this->getLanguage()->userTimeAndDate( $ts, $user ) );
$last = $this->msg( 'diff' )->escaped();
}
// User links
$userLink = Linker::revUserTools( $revRecord );
// Minor edit
$minor = $revRecord->isMinor() ? ChangesList::flag( 'minor' ) : '';
// Revision text size
$size = $row->ar_len;
if ( $size !== null ) {
$revTextSize = Linker::formatRevisionSize( $size );
}
// Edit summary
$comment = $this->commentFormatter->formatRevision( $revRecord, $user );
// Tags
$attribs = [];
[ $tagSummary, $classes ] = ChangeTags::formatSummaryRow(
$row->ts_tags,
'deletedhistory',
$this->getContext()
);
if ( $classes ) {
$attribs['class'] = implode( ' ', $classes );
}
$revisionRow = $this->msg( 'undelete-revision-row2' )
->rawParams(
$checkBox,
$last,
$pageLink,
$userLink,
$minor,
$revTextSize,
$comment,
$tagSummary
)
->escaped();
return Xml::tags( 'li', $attribs, $revisionRow ) . "\n";
}
private function formatFileRow( $row ) {
$file = ArchivedFile::newFromRow( $row );
$ts = wfTimestamp( TS_MW, $row->fa_timestamp );
$user = $this->getUser();
$checkBox = '';
if ( $this->mCanView && $row->fa_storage_key ) {
if ( $this->mAllowed ) {
$checkBox = Xml::check( 'fileid' . $row->fa_id );
}
$key = urlencode( $row->fa_storage_key );
$pageLink = $this->getFileLink( $file, $this->getPageTitle(), $ts, $key );
} else {
$pageLink = htmlspecialchars( $this->getLanguage()->userTimeAndDate( $ts, $user ) );
}
$userLink = $this->getFileUser( $file );
$data = $this->msg( 'widthheight' )->numParams( $row->fa_width, $row->fa_height )->text();
$bytes = $this->msg( 'parentheses' )
->plaintextParams( $this->msg( 'nbytes' )->numParams( $row->fa_size )->text() )
->plain();
$data = htmlspecialchars( $data . ' ' . $bytes );
$comment = $this->getFileComment( $file );
// Add show/hide deletion links if available
$canHide = $this->isAllowed( 'deleterevision' );
if ( $canHide || ( $file->getVisibility() && $this->isAllowed( 'deletedhistory' ) ) ) {
if ( !$file->userCan( File::DELETED_RESTRICTED, $user ) ) {
// Revision was hidden from sysops
$revdlink = Linker::revDeleteLinkDisabled( $canHide );
} else {
$query = [
'type' => 'filearchive',
'target' => $this->mTargetObj->getPrefixedDBkey(),
'ids' => $row->fa_id
];
$revdlink = Linker::revDeleteLink( $query,
$file->isDeleted( File::DELETED_RESTRICTED ), $canHide );
}
} else {
$revdlink = '';
}
return "<li>$checkBox $revdlink $pageLink . . $userLink $data $comment</li>\n";
}
/**
* Fetch revision text link if it's available to all users
*
* @param RevisionRecord $revRecord
* @param Title $titleObj
* @param string $ts Timestamp
* @return string
*/
private function getPageLink( RevisionRecord $revRecord, $titleObj, $ts ) {
$user = $this->getUser();
$time = $this->getLanguage()->userTimeAndDate( $ts, $user );
if ( !$revRecord->userCan( RevisionRecord::DELETED_TEXT, $this->getAuthority() ) ) {
// TODO The condition cannot be true when the function is called
return Html::element(
'span',
[ 'class' => 'history-deleted' ],
$time
);
}
$link = $this->getLinkRenderer()->makeKnownLink(
$titleObj,
$time,
[],
[
'target' => $this->mTargetObj->getPrefixedText(),
'timestamp' => $ts
]
);
if ( $revRecord->isDeleted( RevisionRecord::DELETED_TEXT ) ) {
$class = Linker::getRevisionDeletedClass( $revRecord );
$link = '<span class="' . $class . '">' . $link . '</span>';
}
return $link;
}
/**
* Fetch image view link if it's available to all users
*
* @param File|ArchivedFile $file
* @param Title $titleObj
* @param string $ts A timestamp
* @param string $key A storage key
*
* @return string HTML fragment
*/
private function getFileLink( $file, $titleObj, $ts, $key ) {
$user = $this->getUser();
$time = $this->getLanguage()->userTimeAndDate( $ts, $user );
if ( !$file->userCan( File::DELETED_FILE, $user ) ) {
return Html::element(
'span',
[ 'class' => 'history-deleted' ],
$time
);
}
if ( $file->exists() ) {
$link = $this->getLinkRenderer()->makeKnownLink(
$titleObj,
$time,
[],
[
'target' => $this->mTargetObj->getPrefixedText(),
'file' => $key,
'token' => $user->getEditToken( $key )
]
);
} else {
$link = htmlspecialchars( $time );
}
if ( $file->isDeleted( File::DELETED_FILE ) ) {
$link = '<span class="history-deleted">' . $link . '</span>';
}
return $link;
}
/**
* Fetch file's user id if it's available to this user
*
* @param File|ArchivedFile $file
* @return string HTML fragment
*/
private function getFileUser( $file ) {
$uploader = $file->getUploader( File::FOR_THIS_USER, $this->getAuthority() );
if ( !$uploader ) {
return Html::rawElement(
'span',
[ 'class' => 'history-deleted' ],
$this->msg( 'rev-deleted-user' )->escaped()
);
}
$link = Linker::userLink( $uploader->getId(), $uploader->getName() ) .
Linker::userToolLinks( $uploader->getId(), $uploader->getName() );
if ( $file->isDeleted( File::DELETED_USER ) ) {
$link = Html::rawElement(
'span',
[ 'class' => 'history-deleted' ],
$link
);
}
return $link;
}
/**
* Fetch file upload comment if it's available to this user
*
* @param File|ArchivedFile $file
* @return string HTML fragment
*/
private function getFileComment( $file ) {
if ( !$file->userCan( File::DELETED_COMMENT, $this->getAuthority() ) ) {
return Html::rawElement(
'span',
[ 'class' => 'history-deleted' ],
Html::rawElement(
'span',
[ 'class' => 'comment' ],
$this->msg( 'rev-deleted-comment' )->escaped()
)
);
}
$comment = $file->getDescription( File::FOR_THIS_USER, $this->getAuthority() );
$link = $this->commentFormatter->formatBlock( $comment );
if ( $file->isDeleted( File::DELETED_COMMENT ) ) {
$link = Html::rawElement(
'span',
[ 'class' => 'history-deleted' ],
$link
);
}
return $link;
}
private function undelete() {
if ( $this->getConfig()->get( MainConfigNames::UploadMaintenance )
&& $this->mTargetObj->getNamespace() === NS_FILE
) {
throw new ErrorPageError( 'undelete-error', 'filedelete-maintenance' );
}
$this->checkReadOnly();
$out = $this->getOutput();
$undeletePage = $this->undeletePageFactory->newUndeletePage(
$this->wikiPageFactory->newFromTitle( $this->mTargetObj ),
$this->getAuthority()
);
if ( $this->mUndeleteTalk && $undeletePage->canProbablyUndeleteAssociatedTalk()->isGood() ) {
$undeletePage->setUndeleteAssociatedTalk( true );
}
$status = $undeletePage
->setUndeleteOnlyTimestamps( $this->mTargetTimestamp )
->setUndeleteOnlyFileVersions( $this->mFileVersions )
->setUnsuppress( $this->mUnsuppress )
// TODO This is currently duplicating some permission checks, but we do need it (T305680)
->undeleteIfAllowed( $this->mComment );
if ( !$status->isGood() ) {
$out->setPageTitleMsg( $this->msg( 'undelete-error' ) );
$out->wrapWikiTextAsInterface(
'error',
Status::wrap( $status )->getWikiText(
'cannotundelete',
'cannotundelete',
$this->getLanguage()
)
);
return;
}
$restoredRevs = $status->getValue()[UndeletePage::REVISIONS_RESTORED];
$restoredFiles = $status->getValue()[UndeletePage::FILES_RESTORED];
if ( $restoredRevs === 0 && $restoredFiles === 0 ) {
// TODO Should use a different message here
$out->setPageTitleMsg( $this->msg( 'undelete-error' ) );
} else {
if ( $status->getValue()[UndeletePage::FILES_RESTORED] !== 0 ) {
$this->getHookRunner()->onFileUndeleteComplete(
$this->mTargetObj, $this->mFileVersions, $this->getUser(), $this->mComment );
}
$link = $this->getLinkRenderer()->makeKnownLink( $this->mTargetObj );
$out->addWikiMsg( 'undeletedpage', Message::rawParam( $link ) );
$this->watchlistManager->setWatch(
$this->getRequest()->getCheck( 'wpWatch' ),
$this->getAuthority(),
$this->mTargetObj
);
}
}
/**
* Return an array of subpages beginning with $search that this special page will accept.
*
* @param string $search Prefix to search for
* @param int $limit Maximum number of results to return (usually 10)
* @param int $offset Number of results to skip (usually 0)
* @return string[] Matching subpages
*/
public function prefixSearchSubpages( $search, $limit, $offset ) {
return $this->prefixSearchString( $search, $limit, $offset, $this->searchEngineFactory );
}
protected function getGroupName() {
return 'pagetools';
}
}
/**
* Retain the old class name for backwards compatibility.
* @deprecated since 1.41
*/
class_alias( SpecialUndelete::class, 'SpecialUndelete' );