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Diffstat (limited to 'www/wiki/includes/specials/SpecialUndelete.php')
| -rw-r--r-- | www/wiki/includes/specials/SpecialUndelete.php | 1200 |
1 files changed, 1200 insertions, 0 deletions
diff --git a/www/wiki/includes/specials/SpecialUndelete.php b/www/wiki/includes/specials/SpecialUndelete.php new file mode 100644 index 00000000..540dbc6b --- /dev/null +++ b/www/wiki/includes/specials/SpecialUndelete.php @@ -0,0 +1,1200 @@ +<?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 + */ + +use Wikimedia\Rdbms\IResultWrapper; + +/** + * Special page allowing users with the appropriate permissions to view + * and restore deleted content. + * + * @ingroup SpecialPage + */ +class SpecialUndelete extends SpecialPage { + private $mAction; + private $mTarget; + private $mTimestamp; + private $mRestore; + private $mRevdel; + private $mInvert; + private $mFilename; + private $mTargetTimestamp; + private $mAllowed; + private $mCanView; + private $mComment; + private $mToken; + + /** @var Title */ + private $mTargetObj; + /** + * @var string Search prefix + */ + private $mSearchPrefix; + + function __construct() { + parent::__construct( 'Undelete', 'deletedhistory' ); + } + + public function doesWrites() { + return true; + } + + function loadRequest( $par ) { + $request = $this->getRequest(); + $user = $this->getUser(); + + $this->mAction = $request->getVal( '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->getUser()->getOption( 'diffonly' ) ); + $this->mComment = $request->getText( 'wpComment' ); + $this->mUnsuppress = $request->getVal( 'wpUnsuppress' ) && $user->isAllowed( 'suppressrevision' ); + $this->mToken = $request->getVal( 'token' ); + + if ( $this->isAllowed( 'undelete' ) && !$user->isBlocked() ) { + $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 ) ) { + array_push( $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 $user + * @return bool + */ + protected function isAllowed( $permission, User $user = null ) { + $user = $user ?: $this->getUser(); + if ( $this->mTargetObj !== null ) { + return $this->mTargetObj->userCan( $permission, $user ); + } else { + return $user->isAllowed( $permission ); + } + } + + function userCanExecute( User $user ) { + return $this->isAllowed( $this->mRestriction, $user ); + } + + function execute( $par ) { + $this->useTransactionalTimeLimit(); + + $user = $this->getUser(); + + $this->setHeaders(); + $this->outputHeader(); + + $this->loadRequest( $par ); + $this->checkPermissions(); // Needs to be after mTargetObj is set + + $out = $this->getOutput(); + + if ( is_null( $this->mTargetObj ) ) { + $out->addWikiMsg( 'undelete-header' ); + + # Not all users can just browse every deleted page from the list + if ( $user->isAllowed( 'browsearchive' ) ) { + $this->showSearchForm(); + } + + return; + } + + $this->addHelpLink( 'Help:Undelete' ); + if ( $this->mAllowed ) { + $out->setPageTitle( $this->msg( 'undeletepage' ) ); + } else { + $out->setPageTitle( $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, '', $this->mFilename ); + // Check if user is allowed to see this file + if ( !$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(); + } + + } else { + $this->showHistory(); + } + } + + /** + * Convert submitted form data to format expected by RevisionDelete and + * redirect the request + */ + private function redirectToRevDel() { + $archive = new PageArchive( $this->mTargetObj ); + + $revisions = []; + + foreach ( $this->getRequest()->getValues() as $key => $val ) { + $matches = []; + if ( preg_match( "/^ts(\d{14})$/", $key, $matches ) ) { + $revisions[ $archive->getRevision( $matches[1] )->getId() ] = 1; + } + } + $query = [ + "type" => "revision", + "ids" => $revisions, + "target" => $this->mTargetObj->getPrefixedText() + ]; + $url = SpecialPage::getTitleFor( 'Revisiondelete' )->getFullURL( $query ); + $this->getOutput()->redirect( $url ); + } + + function showSearchForm() { + $out = $this->getOutput(); + $out->setPageTitle( $this->msg( 'undelete-search-title' ) ); + $fuzzySearch = $this->getRequest()->getVal( 'fuzzy', true ); + + $out->enableOOUI(); + + $fields[] = new OOUI\ActionFieldLayout( + new OOUI\TextInputWidget( [ + 'name' => 'prefix', + 'inputId' => 'prefix', + 'infusable' => true, + 'value' => $this->mSearchPrefix, + 'autofocus' => true, + ] ), + new OOUI\ButtonInputWidget( [ + 'label' => $this->msg( 'undelete-search-submit' )->text(), + 'flags' => [ 'primary', 'progressive' ], + 'inputId' => 'searchUndelete', + 'type' => 'submit', + ] ), + [ + 'label' => new OOUI\HtmlSnippet( + $this->msg( + $fuzzySearch ? 'undelete-search-full' : 'undelete-search-prefix' + )->parse() + ), + 'align' => 'left', + ] + ); + + $fieldset = new OOUI\FieldsetLayout( [ + 'label' => $this->msg( 'undelete-search-box' )->text(), + 'items' => $fields, + ] ); + + $form = new OOUI\FormLayout( [ + 'method' => 'get', + 'action' => wfScript(), + ] ); + + $form->appendContent( + $fieldset, + new OOUI\HtmlSnippet( + Html::hidden( 'title', $this->getPageTitle()->getPrefixedDBkey() ) . + Html::hidden( 'fuzzy', $fuzzySearch ) + ) + ); + + $out->addHTML( + new OOUI\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(); + $out->addHTML( "<li class='undeleteResult'>{$item} ({$revs})</li>\n" ); + } + $result->free(); + $out->addHTML( "</ul>\n" ); + + return true; + } + + private function showRevision( $timestamp ) { + if ( !preg_match( '/[0-9]{14}/', $timestamp ) ) { + return; + } + + $archive = new PageArchive( $this->mTargetObj, $this->getConfig() ); + if ( !Hooks::run( 'UndeleteForm::showRevision', [ &$archive, $this->mTargetObj ] ) ) { + return; + } + $rev = $archive->getRevision( $timestamp ); + + $out = $this->getOutput(); + $user = $this->getUser(); + + if ( !$rev ) { + $out->addWikiMsg( 'undeleterevision-missing' ); + + return; + } + + if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) { + if ( !$rev->userCan( Revision::DELETED_TEXT, $user ) ) { + $out->wrapWikiMsg( + "<div class='mw-warning plainlinks'>\n$1\n</div>\n", + $rev->isDeleted( Revision::DELETED_RESTRICTED ) ? + 'rev-suppressed-text-permission' : 'rev-deleted-text-permission' + ); + + return; + } + + $out->wrapWikiMsg( + "<div class='mw-warning plainlinks'>\n$1\n</div>\n", + $rev->isDeleted( Revision::DELETED_RESTRICTED ) ? + 'rev-suppressed-text-view' : 'rev-deleted-text-view' + ); + $out->addHTML( '<br />' ); + // and we are allowed to see... + } + + if ( $this->mDiff ) { + $previousRev = $archive->getPreviousRevision( $timestamp ); + if ( $previousRev ) { + $this->showDiff( $previousRev, $rev ); + 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( $rev ); + + $content = $rev->getContent( Revision::FOR_THIS_USER, $user ); + + $isText = ( $content instanceof TextContent ); + + if ( $this->mPreview || $isText ) { + $openDiv = '<div id="mw-undelete-revision" class="mw-warning">'; + } else { + $openDiv = '<div id="mw-undelete-revision">'; + } + $out->addHTML( $openDiv ); + + // Revision delete links + if ( !$this->mDiff ) { + $revdel = Linker::getRevDeleteLink( $user, $rev, $this->mTargetObj ); + if ( $revdel ) { + $out->addHTML( "$revdel " ); + } + } + + $out->addHTML( $this->msg( 'undelete-revision' )->rawParams( $link )->params( + $time )->rawParams( $userLink )->params( $d, $t )->parse() . '</div>' ); + + if ( !Hooks::run( 'UndeleteShowRevision', [ $this->mTargetObj, $rev ] ) ) { + return; + } + + if ( ( $this->mPreview || !$isText ) && $content ) { + // NOTE: non-text content has no source view, so always use rendered preview + + $popts = $out->parserOptions(); + + $pout = $content->getParserOutput( $this->mTargetObj, $rev->getId(), $popts, true ); + $out->addParserOutput( $pout, [ + 'enableSectionEditLinks' => false, + ] ); + } + + $out->enableOOUI(); + $buttonFields = []; + + if ( $isText ) { + // source view for textual content + $sourceView = Xml::element( 'textarea', [ + 'readonly' => 'readonly', + 'cols' => 80, + 'rows' => 25 + ], $content->getNativeData() . "\n" ); + + $buttonFields[] = new OOUI\ButtonInputWidget( [ + 'type' => 'submit', + 'name' => 'preview', + 'label' => $this->msg( 'showpreview' )->text() + ] ); + } else { + $sourceView = ''; + $previewButton = ''; + } + + $buttonFields[] = new OOUI\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 OOUI\FieldLayout( + new OOUI\Widget( [ + 'content' => new OOUI\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 Revision $previousRev + * @param Revision $currentRev + * @return string HTML + */ + function showDiff( $previousRev, $currentRev ) { + $diffContext = clone $this->getContext(); + $diffContext->setTitle( $currentRev->getTitle() ); + $diffContext->setWikiPage( WikiPage::factory( $currentRev->getTitle() ) ); + + $diffEngine = $currentRev->getContentHandler()->createDifferenceEngine( $diffContext ); + $diffEngine->showDiffStyle(); + + $formattedDiff = $diffEngine->generateContentDiffBody( + $previousRev->getContent( Revision::FOR_THIS_USER, $this->getUser() ), + $currentRev->getContent( Revision::FOR_THIS_USER, $this->getUser() ) + ); + + $formattedDiff = $diffEngine->addHeader( + $formattedDiff, + $this->diffHeader( $previousRev, 'o' ), + $this->diffHeader( $currentRev, 'n' ) + ); + + $this->getOutput()->addHTML( "<div>$formattedDiff</div>\n" ); + } + + /** + * @param Revision $rev + * @param string $prefix + * @return string + */ + private function diffHeader( $rev, $prefix ) { + $isDeleted = !( $rev->getId() && $rev->getTitle() ); + if ( $isDeleted ) { + /// @todo FIXME: $rev->getTitle() is null for deleted revs...? + $targetPage = $this->getPageTitle(); + $targetQuery = [ + 'target' => $this->mTargetObj->getPrefixedText(), + 'timestamp' => wfTimestamp( TS_MW, $rev->getTimestamp() ) + ]; + } else { + /// @todo FIXME: getId() may return non-zero for deleted revs... + $targetPage = $rev->getTitle(); + $targetQuery = [ 'oldid' => $rev->getId() ]; + } + + // Add show/hide deletion links if available + $user = $this->getUser(); + $lang = $this->getLanguage(); + $rdel = Linker::getRevDeleteLink( $user, $rev, $this->mTargetObj ); + + if ( $rdel ) { + $rdel = " $rdel"; + } + + $minor = $rev->isMinor() ? ChangesList::flag( 'minor' ) : ''; + + $tags = wfGetDB( DB_REPLICA )->selectField( + 'tag_summary', + 'ts_tags', + [ 'ts_rev_id' => $rev->getId() ], + __METHOD__ + ); + $tagSummary = ChangeTags::formatSummaryRow( $tags, 'deleteddiff', $this->getContext() ); + + // FIXME This is reimplementing DifferenceEngine#getRevisionHeader + // and partially #showDiffPage, but worse + return '<div id="mw-diff-' . $prefix . 'title1"><strong>' . + $this->getLinkRenderer()->makeLink( + $targetPage, + $this->msg( + 'revisionasof', + $lang->userTimeAndDate( $rev->getTimestamp(), $user ), + $lang->userDate( $rev->getTimestamp(), $user ), + $lang->userTime( $rev->getTimestamp(), $user ) + )->text(), + [], + $targetQuery + ) . + '</strong></div>' . + '<div id="mw-diff-' . $prefix . 'title2">' . + Linker::revUserTools( $rev ) . '<br />' . + '</div>' . + '<div id="mw-diff-' . $prefix . 'title3">' . + $minor . Linker::revComment( $rev ) . $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, '', $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' ); + $response->header( 'Pragma: no-cache' ); + + $repo = RepoGroup::singleton()->getLocalRepo(); + $path = $repo->getZonePath( 'deleted' ) . '/' . $repo->getDeletedHashPath( $key ) . $key; + $repo->streamFile( $path ); + } + + protected function showHistory() { + $this->checkReadOnly(); + + $out = $this->getOutput(); + if ( $this->mAllowed ) { + $out->addModules( 'mediawiki.special.undelete' ); + } + $out->wrapWikiMsg( + "<div class='mw-undelete-pagetitle'>\n$1\n</div>\n", + [ 'undeletepagetitle', wfEscapeWikiText( $this->mTargetObj->getPrefixedText() ) ] + ); + + $archive = new PageArchive( $this->mTargetObj, $this->getConfig() ); + Hooks::run( 'UndeleteForm::showHistory', [ &$archive, $this->mTargetObj ] ); + + $out->addHTML( '<div class="mw-undelete-history">' ); + if ( $this->mAllowed ) { + $out->addWikiMsg( 'undeletehistory' ); + $out->addWikiMsg( 'undeleterevdel' ); + } else { + $out->addWikiMsg( 'undeletehistorynoadmin' ); + } + $out->addHTML( '</div>' ); + + # List all stored revisions + $revisions = $archive->listRevisions(); + $files = $archive->listFiles(); + + $haveRevisions = $revisions && $revisions->numRows() > 0; + $haveFiles = $files && $files->numRows() > 0; + + # Batch existence check on user and talk pages + if ( $haveRevisions ) { + $batch = new LinkBatch(); + foreach ( $revisions as $row ) { + $batch->addObj( Title::makeTitleSafe( NS_USER, $row->ar_user_text ) ); + $batch->addObj( Title::makeTitleSafe( NS_USER_TALK, $row->ar_user_text ) ); + } + $batch->execute(); + $revisions->seek( 0 ); + } + if ( $haveFiles ) { + $batch = new LinkBatch(); + foreach ( $files as $row ) { + $batch->addObj( Title::makeTitleSafe( NS_USER, $row->fa_user_text ) ); + $batch->addObj( Title::makeTitleSafe( NS_USER_TALK, $row->fa_user_text ) ); + } + $batch->execute(); + $files->seek( 0 ); + } + + if ( $this->mAllowed ) { + $out->enableOOUI(); + + $action = $this->getPageTitle()->getLocalURL( [ 'action' => 'submit' ] ); + # Start the form here + $form = new OOUI\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->getUser()->isAllowed( 'suppressionlog' ) ) { + $out->addHTML( Xml::element( 'h2', null, $suppressLogPage->getName()->text() ) . "\n" ); + LogEventsList::showLogExtract( $out, 'suppress', $this->mTargetObj ); + } + + if ( $this->mAllowed && ( $haveRevisions || $haveFiles ) ) { + $fields[] = new OOUI\Layout( [ + 'content' => new OOUI\HtmlSnippet( $this->msg( 'undeleteextrahelp' )->parseAsBlock() ) + ] ); + + $conf = $this->getConfig(); + $oldCommentSchema = $conf->get( 'CommentTableSchemaMigrationStage' ) === MIGRATION_OLD; + + $fields[] = new OOUI\FieldLayout( + new OOUI\TextInputWidget( [ + 'name' => 'wpComment', + 'inputId' => 'wpComment', + 'infusable' => true, + 'value' => $this->mComment, + '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 (or 255 UTF-8 bytes for old schema). + 'maxLength' => $oldCommentSchema ? 255 : CommentStore::COMMENT_CHARACTER_LIMIT, + ] ), + [ + 'label' => $this->msg( 'undeletecomment' )->text(), + 'align' => 'top', + ] + ); + + $fields[] = new OOUI\FieldLayout( + new OOUI\Widget( [ + 'content' => new OOUI\HorizontalLayout( [ + 'items' => [ + new OOUI\ButtonInputWidget( [ + 'name' => 'restore', + 'inputId' => 'mw-undelete-submit', + 'value' => '1', + 'label' => $this->msg( 'undeletebtn' )->text(), + 'flags' => [ 'primary', 'progressive' ], + 'type' => 'submit', + ] ), + new OOUI\ButtonInputWidget( [ + 'name' => 'invert', + 'inputId' => 'mw-undelete-invert', + 'value' => '1', + 'label' => $this->msg( 'undeleteinvert' )->text() + ] ), + ] + ] ) + ] ) + ); + + if ( $this->getUser()->isAllowed( 'suppressrevision' ) ) { + $fields[] = new OOUI\FieldLayout( + new OOUI\CheckboxInputWidget( [ + 'name' => 'wpUnsuppress', + 'inputId' => 'mw-undelete-unsuppress', + 'value' => '1', + ] ), + [ + 'label' => $this->msg( 'revdelete-unsuppress' )->text(), + 'align' => 'inline', + ] + ); + } + + $fieldset = new OOUI\FieldsetLayout( [ + 'label' => $this->msg( 'undelete-fieldset-title' )->text(), + 'id' => 'mw-undelete-table', + 'items' => $fields, + ] ); + + $form->appendContent( + new OOUI\PanelLayout( [ + 'expanded' => false, + 'padded' => true, + 'framed' => true, + 'content' => $fieldset, + ] ), + new OOUI\HtmlSnippet( + 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->getUser()->isAllowed( 'deleterevision' ) ) { + $history .= Html::element( + 'button', + [ + 'name' => 'revdel', + 'type' => 'submit', + 'class' => 'deleterevision-log-submit mw-log-deleterevision-button' + ], + $this->msg( 'showhideselectedversions' )->text() + ) . "\n"; + } + + $history .= '<ul class="mw-undelete-revlist">'; + $remaining = $revisions->numRows(); + $earliestLiveTime = $this->mTargetObj->getEarliestRevTime(); + + foreach ( $revisions as $row ) { + $remaining--; + $history .= $this->formatRevisionRow( $row, $earliestLiveTime, $remaining ); + } + $revisions->free(); + $history .= '</ul>'; + } else { + $out->addWikiMsg( 'nohistory' ); + } + + if ( $haveFiles ) { + $history .= Xml::element( 'h2', null, $this->msg( 'filehist' )->text() ) . "\n"; + $history .= '<ul class="mw-undelete-revlist">'; + foreach ( $files as $row ) { + $history .= $this->formatFileRow( $row ); + } + $files->free(); + $history .= '</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; + + $form->appendContent( new OOUI\HtmlSnippet( $history ) ); + $out->addHTML( $form ); + } else { + $out->addHTML( $history ); + } + + return true; + } + + protected function formatRevisionRow( $row, $earliestLiveTime, $remaining ) { + $rev = Revision::newFromArchiveRow( $row, + [ + 'title' => $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 = $this->getPageTitle(); + # Last link + if ( !$rev->userCan( Revision::DELETED_TEXT, $this->getUser() ) ) { + $pageLink = htmlspecialchars( $this->getLanguage()->userTimeAndDate( $ts, $user ) ); + $last = $this->msg( 'diff' )->escaped(); + } elseif ( $remaining > 0 || ( $earliestLiveTime && $ts > $earliestLiveTime ) ) { + $pageLink = $this->getPageLink( $rev, $titleObj, $ts ); + $last = $this->getLinkRenderer()->makeKnownLink( + $titleObj, + $this->msg( 'diff' )->text(), + [], + [ + 'target' => $this->mTargetObj->getPrefixedText(), + 'timestamp' => $ts, + 'diff' => 'prev' + ] + ); + } else { + $pageLink = $this->getPageLink( $rev, $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( $rev ); + + // Minor edit + $minor = $rev->isMinor() ? ChangesList::flag( 'minor' ) : ''; + + // Revision text size + $size = $row->ar_len; + if ( !is_null( $size ) ) { + $revTextSize = Linker::formatRevisionSize( $size ); + } + + // Edit summary + $comment = Linker::revComment( $rev ); + + // Tags + $attribs = []; + list( $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 Revision $rev + * @param Title $titleObj + * @param string $ts Timestamp + * @return string + */ + function getPageLink( $rev, $titleObj, $ts ) { + $user = $this->getUser(); + $time = $this->getLanguage()->userTimeAndDate( $ts, $user ); + + if ( !$rev->userCan( Revision::DELETED_TEXT, $user ) ) { + return '<span class="history-deleted">' . $time . '</span>'; + } + + $link = $this->getLinkRenderer()->makeKnownLink( + $titleObj, + $time, + [], + [ + 'target' => $this->mTargetObj->getPrefixedText(), + 'timestamp' => $ts + ] + ); + + if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) { + $link = '<span class="history-deleted">' . $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 + */ + function getFileLink( $file, $titleObj, $ts, $key ) { + $user = $this->getUser(); + $time = $this->getLanguage()->userTimeAndDate( $ts, $user ); + + if ( !$file->userCan( File::DELETED_FILE, $user ) ) { + return '<span class="history-deleted">' . htmlspecialchars( $time ) . '</span>'; + } + + $link = $this->getLinkRenderer()->makeKnownLink( + $titleObj, + $time, + [], + [ + 'target' => $this->mTargetObj->getPrefixedText(), + 'file' => $key, + 'token' => $user->getEditToken( $key ) + ] + ); + + 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 + */ + function getFileUser( $file ) { + if ( !$file->userCan( File::DELETED_USER, $this->getUser() ) ) { + return '<span class="history-deleted">' . + $this->msg( 'rev-deleted-user' )->escaped() . + '</span>'; + } + + $link = Linker::userLink( $file->getRawUser(), $file->getRawUserText() ) . + Linker::userToolLinks( $file->getRawUser(), $file->getRawUserText() ); + + if ( $file->isDeleted( File::DELETED_USER ) ) { + $link = '<span class="history-deleted">' . $link . '</span>'; + } + + return $link; + } + + /** + * Fetch file upload comment if it's available to this user + * + * @param File|ArchivedFile $file + * @return string HTML fragment + */ + function getFileComment( $file ) { + if ( !$file->userCan( File::DELETED_COMMENT, $this->getUser() ) ) { + return '<span class="history-deleted"><span class="comment">' . + $this->msg( 'rev-deleted-comment' )->escaped() . '</span></span>'; + } + + $link = Linker::commentBlock( $file->getRawDescription() ); + + if ( $file->isDeleted( File::DELETED_COMMENT ) ) { + $link = '<span class="history-deleted">' . $link . '</span>'; + } + + return $link; + } + + function undelete() { + if ( $this->getConfig()->get( 'UploadMaintenance' ) + && $this->mTargetObj->getNamespace() == NS_FILE + ) { + throw new ErrorPageError( 'undelete-error', 'filedelete-maintenance' ); + } + + $this->checkReadOnly(); + + $out = $this->getOutput(); + $archive = new PageArchive( $this->mTargetObj, $this->getConfig() ); + Hooks::run( 'UndeleteForm::undelete', [ &$archive, $this->mTargetObj ] ); + $ok = $archive->undelete( + $this->mTargetTimestamp, + $this->mComment, + $this->mFileVersions, + $this->mUnsuppress, + $this->getUser() + ); + + if ( is_array( $ok ) ) { + if ( $ok[1] ) { // Undeleted file count + Hooks::run( 'FileUndeleteComplete', [ + $this->mTargetObj, $this->mFileVersions, + $this->getUser(), $this->mComment ] ); + } + + $link = $this->getLinkRenderer()->makeKnownLink( $this->mTargetObj ); + $out->addHTML( $this->msg( 'undeletedpage' )->rawParams( $link )->parse() ); + } else { + $out->setPageTitle( $this->msg( 'undelete-error' ) ); + } + + // Show revision undeletion warnings and errors + $status = $archive->getRevisionStatus(); + if ( $status && !$status->isGood() ) { + $out->addWikiText( '<div class="error" id="mw-error-cannotundelete">' . + $status->getWikiText( + 'cannotundelete', + 'cannotundelete' + ) . '</div>' + ); + } + + // Show file undeletion warnings and errors + $status = $archive->getFileStatus(); + if ( $status && !$status->isGood() ) { + $out->addWikiText( '<div class="error">' . + $status->getWikiText( + 'undelete-error-short', + 'undelete-error-long' + ) . '</div>' + ); + } + } + + /** + * 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 ); + } + + protected function getGroupName() { + return 'pagetools'; + } +} |