diff options
Diffstat (limited to 'www/wiki/includes/actions/HistoryAction.php')
| -rw-r--r-- | www/wiki/includes/actions/HistoryAction.php | 966 |
1 files changed, 966 insertions, 0 deletions
diff --git a/www/wiki/includes/actions/HistoryAction.php b/www/wiki/includes/actions/HistoryAction.php new file mode 100644 index 00000000..f7ac21b7 --- /dev/null +++ b/www/wiki/includes/actions/HistoryAction.php @@ -0,0 +1,966 @@ +<?php +/** + * Page history + * + * Split off from Article.php and Skin.php, 2003-12-22 + * + * 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 Actions + */ + +use MediaWiki\MediaWikiServices; +use Wikimedia\Rdbms\ResultWrapper; +use Wikimedia\Rdbms\FakeResultWrapper; + +/** + * This class handles printing the history page for an article. In order to + * be efficient, it uses timestamps rather than offsets for paging, to avoid + * costly LIMIT,offset queries. + * + * Construct it by passing in an Article, and call $h->history() to print the + * history. + * + * @ingroup Actions + */ +class HistoryAction extends FormlessAction { + const DIR_PREV = 0; + const DIR_NEXT = 1; + + /** @var array Array of message keys and strings */ + public $message; + + public function getName() { + return 'history'; + } + + public function requiresWrite() { + return false; + } + + public function requiresUnblock() { + return false; + } + + protected function getPageTitle() { + return $this->msg( 'history-title', $this->getTitle()->getPrefixedText() )->text(); + } + + protected function getDescription() { + // Creation of a subtitle link pointing to [[Special:Log]] + return MediaWikiServices::getInstance()->getLinkRenderer()->makeKnownLink( + SpecialPage::getTitleFor( 'Log' ), + $this->msg( 'viewpagelogs' )->text(), + [], + [ 'page' => $this->getTitle()->getPrefixedText() ] + ); + } + + /** + * @return WikiPage|Article|ImagePage|CategoryPage|Page The Article object we are working on. + */ + public function getArticle() { + return $this->page; + } + + /** + * As we use the same small set of messages in various methods and that + * they are called often, we call them once and save them in $this->message + */ + private function preCacheMessages() { + // Precache various messages + if ( !isset( $this->message ) ) { + $msgs = [ 'cur', 'last', 'pipe-separator' ]; + foreach ( $msgs as $msg ) { + $this->message[$msg] = $this->msg( $msg )->escaped(); + } + } + } + + /** + * Print the history page for an article. + */ + function onView() { + $out = $this->getOutput(); + $request = $this->getRequest(); + + /** + * Allow client caching. + */ + if ( $out->checkLastModified( $this->page->getTouched() ) ) { + return; // Client cache fresh and headers sent, nothing more to do. + } + + $this->preCacheMessages(); + $config = $this->context->getConfig(); + + # Fill in the file cache if not set already + if ( HTMLFileCache::useFileCache( $this->getContext() ) ) { + $cache = new HTMLFileCache( $this->getTitle(), 'history' ); + if ( !$cache->isCacheGood( /* Assume up to date */ ) ) { + ob_start( [ &$cache, 'saveToFileCache' ] ); + } + } + + // Setup page variables. + $out->setFeedAppendQuery( 'action=history' ); + $out->addModules( 'mediawiki.action.history' ); + $out->addModuleStyles( [ + 'mediawiki.action.history.styles', + 'mediawiki.special.changeslist', + ] ); + if ( $config->get( 'UseMediaWikiUIEverywhere' ) ) { + $out = $this->getOutput(); + $out->addModuleStyles( [ + 'mediawiki.ui.input', + 'mediawiki.ui.checkbox', + ] ); + } + + // Handle atom/RSS feeds. + $feedType = $request->getVal( 'feed' ); + if ( $feedType ) { + $this->feed( $feedType ); + + return; + } + + $this->addHelpLink( '//meta.wikimedia.org/wiki/Special:MyLanguage/Help:Page_history', true ); + + // Fail nicely if article doesn't exist. + if ( !$this->page->exists() ) { + global $wgSend404Code; + if ( $wgSend404Code ) { + $out->setStatusCode( 404 ); + } + $out->addWikiMsg( 'nohistory' ); + + $dbr = wfGetDB( DB_REPLICA ); + + # show deletion/move log if there is an entry + LogEventsList::showLogExtract( + $out, + [ 'delete', 'move', 'protect' ], + $this->getTitle(), + '', + [ 'lim' => 10, + 'conds' => [ 'log_action != ' . $dbr->addQuotes( 'revision' ) ], + 'showIfEmpty' => false, + 'msgKey' => [ 'moveddeleted-notice' ] + ] + ); + + return; + } + + /** + * Add date selector to quickly get to a certain time + */ + $year = $request->getInt( 'year' ); + $month = $request->getInt( 'month' ); + $tagFilter = $request->getVal( 'tagfilter' ); + $tagSelector = ChangeTags::buildTagFilterSelector( $tagFilter, false, $this->getContext() ); + + /** + * Option to show only revisions that have been (partially) hidden via RevisionDelete + */ + if ( $request->getBool( 'deleted' ) ) { + $conds = [ 'rev_deleted != 0' ]; + } else { + $conds = []; + } + if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) { + $checkDeleted = Xml::checkLabel( $this->msg( 'history-show-deleted' )->text(), + 'deleted', 'mw-show-deleted-only', $request->getBool( 'deleted' ) ) . "\n"; + } else { + $checkDeleted = ''; + } + + // Add the general form + $action = htmlspecialchars( wfScript() ); + $content = Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() ) . "\n"; + $content .= Html::hidden( 'action', 'history' ) . "\n"; + $content .= Xml::dateMenu( + ( $year == null ? MWTimestamp::getLocalInstance()->format( 'Y' ) : $year ), + $month + ) . ' '; + $content .= $tagSelector ? ( implode( ' ', $tagSelector ) . ' ' ) : ''; + $content .= $checkDeleted . Html::submitButton( + $this->msg( 'historyaction-submit' )->text(), + [], + [ 'mw-ui-progressive' ] + ); + $out->addHTML( + "<form action=\"$action\" method=\"get\" id=\"mw-history-searchform\">" . + Xml::fieldset( + $this->msg( 'history-fieldset-title' )->text(), + $content, + [ 'id' => 'mw-history-search' ] + ) . + '</form>' + ); + + Hooks::run( 'PageHistoryBeforeList', [ &$this->page, $this->getContext() ] ); + + // Create and output the list. + $pager = new HistoryPager( $this, $year, $month, $tagFilter, $conds ); + $out->addHTML( + $pager->getNavigationBar() . + $pager->getBody() . + $pager->getNavigationBar() + ); + $out->preventClickjacking( $pager->getPreventClickjacking() ); + } + + /** + * Fetch an array of revisions, specified by a given limit, offset and + * direction. This is now only used by the feeds. It was previously + * used by the main UI but that's now handled by the pager. + * + * @param int $limit The limit number of revisions to get + * @param int $offset + * @param int $direction Either self::DIR_PREV or self::DIR_NEXT + * @return ResultWrapper + */ + function fetchRevisions( $limit, $offset, $direction ) { + // Fail if article doesn't exist. + if ( !$this->getTitle()->exists() ) { + return new FakeResultWrapper( [] ); + } + + $dbr = wfGetDB( DB_REPLICA ); + + if ( $direction === self::DIR_PREV ) { + list( $dirs, $oper ) = [ "ASC", ">=" ]; + } else { /* $direction === self::DIR_NEXT */ + list( $dirs, $oper ) = [ "DESC", "<=" ]; + } + + if ( $offset ) { + $offsets = [ "rev_timestamp $oper " . $dbr->addQuotes( $dbr->timestamp( $offset ) ) ]; + } else { + $offsets = []; + } + + $page_id = $this->page->getId(); + + $revQuery = Revision::getQueryInfo(); + return $dbr->select( + $revQuery['tables'], + $revQuery['fields'], + array_merge( [ 'rev_page' => $page_id ], $offsets ), + __METHOD__, + [ + 'ORDER BY' => "rev_timestamp $dirs", + 'USE INDEX' => [ 'revision' => 'page_timestamp' ], + 'LIMIT' => $limit + ], + $revQuery['joins'] + ); + } + + /** + * Output a subscription feed listing recent edits to this page. + * + * @param string $type Feed type + */ + function feed( $type ) { + if ( !FeedUtils::checkFeedOutput( $type ) ) { + return; + } + $request = $this->getRequest(); + + $feedClasses = $this->context->getConfig()->get( 'FeedClasses' ); + /** @var RSSFeed|AtomFeed $feed */ + $feed = new $feedClasses[$type]( + $this->getTitle()->getPrefixedText() . ' - ' . + $this->msg( 'history-feed-title' )->inContentLanguage()->text(), + $this->msg( 'history-feed-description' )->inContentLanguage()->text(), + $this->getTitle()->getFullURL( 'action=history' ) + ); + + // Get a limit on number of feed entries. Provide a sane default + // of 10 if none is defined (but limit to $wgFeedLimit max) + $limit = $request->getInt( 'limit', 10 ); + $limit = min( + max( $limit, 1 ), + $this->context->getConfig()->get( 'FeedLimit' ) + ); + + $items = $this->fetchRevisions( $limit, 0, self::DIR_NEXT ); + + // Generate feed elements enclosed between header and footer. + $feed->outHeader(); + if ( $items->numRows() ) { + foreach ( $items as $row ) { + $feed->outItem( $this->feedItem( $row ) ); + } + } else { + $feed->outItem( $this->feedEmpty() ); + } + $feed->outFooter(); + } + + function feedEmpty() { + return new FeedItem( + $this->msg( 'nohistory' )->inContentLanguage()->text(), + $this->msg( 'history-feed-empty' )->inContentLanguage()->parseAsBlock(), + $this->getTitle()->getFullURL(), + wfTimestamp( TS_MW ), + '', + $this->getTitle()->getTalkPage()->getFullURL() + ); + } + + /** + * Generate a FeedItem object from a given revision table row + * Borrows Recent Changes' feed generation functions for formatting; + * includes a diff to the previous revision (if any). + * + * @param stdClass|array $row Database row + * @return FeedItem + */ + function feedItem( $row ) { + $rev = new Revision( $row, 0, $this->getTitle() ); + + $text = FeedUtils::formatDiffRow( + $this->getTitle(), + $this->getTitle()->getPreviousRevisionID( $rev->getId() ), + $rev->getId(), + $rev->getTimestamp(), + $rev->getComment() + ); + if ( $rev->getComment() == '' ) { + global $wgContLang; + $title = $this->msg( 'history-feed-item-nocomment', + $rev->getUserText(), + $wgContLang->timeanddate( $rev->getTimestamp() ), + $wgContLang->date( $rev->getTimestamp() ), + $wgContLang->time( $rev->getTimestamp() ) )->inContentLanguage()->text(); + } else { + $title = $rev->getUserText() . + $this->msg( 'colon-separator' )->inContentLanguage()->text() . + FeedItem::stripComment( $rev->getComment() ); + } + + return new FeedItem( + $title, + $text, + $this->getTitle()->getFullURL( 'diff=' . $rev->getId() . '&oldid=prev' ), + $rev->getTimestamp(), + $rev->getUserText(), + $this->getTitle()->getTalkPage()->getFullURL() + ); + } +} + +/** + * @ingroup Pager + * @ingroup Actions + */ +class HistoryPager extends ReverseChronologicalPager { + /** + * @var bool|stdClass + */ + public $lastRow = false; + + public $counter, $historyPage, $buttons, $conds; + + protected $oldIdChecked; + + protected $preventClickjacking = false; + /** + * @var array + */ + protected $parentLens; + + /** @var bool Whether to show the tag editing UI */ + protected $showTagEditUI; + + /** @var string */ + private $tagFilter; + + /** + * @param HistoryAction $historyPage + * @param string $year + * @param string $month + * @param string $tagFilter + * @param array $conds + */ + function __construct( $historyPage, $year = '', $month = '', $tagFilter = '', $conds = [] ) { + parent::__construct( $historyPage->getContext() ); + $this->historyPage = $historyPage; + $this->tagFilter = $tagFilter; + $this->getDateCond( $year, $month ); + $this->conds = $conds; + $this->showTagEditUI = ChangeTags::showTagEditingUI( $this->getUser() ); + } + + // For hook compatibility... + function getArticle() { + return $this->historyPage->getArticle(); + } + + function getSqlComment() { + if ( $this->conds ) { + return 'history page filtered'; // potentially slow, see CR r58153 + } else { + return 'history page unfiltered'; + } + } + + function getQueryInfo() { + $revQuery = Revision::getQueryInfo( [ 'user' ] ); + $queryInfo = [ + 'tables' => $revQuery['tables'], + 'fields' => $revQuery['fields'], + 'conds' => array_merge( + [ 'rev_page' => $this->getWikiPage()->getId() ], + $this->conds ), + 'options' => [ 'USE INDEX' => [ 'revision' => 'page_timestamp' ] ], + 'join_conds' => $revQuery['joins'], + ]; + ChangeTags::modifyDisplayQuery( + $queryInfo['tables'], + $queryInfo['fields'], + $queryInfo['conds'], + $queryInfo['join_conds'], + $queryInfo['options'], + $this->tagFilter + ); + + // Avoid PHP 7.1 warning of passing $this by reference + $historyPager = $this; + Hooks::run( 'PageHistoryPager::getQueryInfo', [ &$historyPager, &$queryInfo ] ); + + return $queryInfo; + } + + function getIndexField() { + return 'rev_timestamp'; + } + + /** + * @param stdClass $row + * @return string + */ + function formatRow( $row ) { + if ( $this->lastRow ) { + $latest = ( $this->counter == 1 && $this->mIsFirst ); + $firstInList = $this->counter == 1; + $this->counter++; + + $notifTimestamp = $this->getConfig()->get( 'ShowUpdatedMarker' ) + ? $this->getTitle()->getNotificationTimestamp( $this->getUser() ) + : false; + + $s = $this->historyLine( + $this->lastRow, $row, $notifTimestamp, $latest, $firstInList ); + } else { + $s = ''; + } + $this->lastRow = $row; + + return $s; + } + + function doBatchLookups() { + if ( !Hooks::run( 'PageHistoryPager::doBatchLookups', [ $this, $this->mResult ] ) ) { + return; + } + + # Do a link batch query + $this->mResult->seek( 0 ); + $batch = new LinkBatch(); + $revIds = []; + foreach ( $this->mResult as $row ) { + if ( $row->rev_parent_id ) { + $revIds[] = $row->rev_parent_id; + } + if ( !is_null( $row->user_name ) ) { + $batch->add( NS_USER, $row->user_name ); + $batch->add( NS_USER_TALK, $row->user_name ); + } else { # for anons or usernames of imported revisions + $batch->add( NS_USER, $row->rev_user_text ); + $batch->add( NS_USER_TALK, $row->rev_user_text ); + } + } + $this->parentLens = Revision::getParentLengths( $this->mDb, $revIds ); + $batch->execute(); + $this->mResult->seek( 0 ); + } + + /** + * Creates begin of history list with a submit button + * + * @return string HTML output + */ + function getStartBody() { + $this->lastRow = false; + $this->counter = 1; + $this->oldIdChecked = 0; + + $this->getOutput()->wrapWikiMsg( "<div class='mw-history-legend'>\n$1\n</div>", 'histlegend' ); + $s = Html::openElement( 'form', [ 'action' => wfScript(), + 'id' => 'mw-history-compare' ] ) . "\n"; + $s .= Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() ) . "\n"; + $s .= Html::hidden( 'action', 'historysubmit' ) . "\n"; + $s .= Html::hidden( 'type', 'revision' ) . "\n"; + + // Button container stored in $this->buttons for re-use in getEndBody() + $this->buttons = '<div>'; + $className = 'historysubmit mw-history-compareselectedversions-button'; + $attrs = [ 'class' => $className ] + + Linker::tooltipAndAccesskeyAttribs( 'compareselectedversions' ); + $this->buttons .= $this->submitButton( $this->msg( 'compareselectedversions' )->text(), + $attrs + ) . "\n"; + + $user = $this->getUser(); + $actionButtons = ''; + if ( $user->isAllowed( 'deleterevision' ) ) { + $actionButtons .= $this->getRevisionButton( 'revisiondelete', 'showhideselectedversions' ); + } + if ( $this->showTagEditUI ) { + $actionButtons .= $this->getRevisionButton( 'editchangetags', 'history-edit-tags' ); + } + if ( $actionButtons ) { + $this->buttons .= Xml::tags( 'div', [ 'class' => + 'mw-history-revisionactions' ], $actionButtons ); + } + + if ( $user->isAllowed( 'deleterevision' ) || $this->showTagEditUI ) { + $this->buttons .= ( new ListToggle( $this->getOutput() ) )->getHTML(); + } + + $this->buttons .= '</div>'; + + $s .= $this->buttons; + $s .= '<ul id="pagehistory">' . "\n"; + + return $s; + } + + private function getRevisionButton( $name, $msg ) { + $this->preventClickjacking(); + # Note bug #20966, <button> is non-standard in IE<8 + $element = Html::element( + 'button', + [ + 'type' => 'submit', + 'name' => $name, + 'value' => '1', + 'class' => "historysubmit mw-history-$name-button", + ], + $this->msg( $msg )->text() + ) . "\n"; + return $element; + } + + function getEndBody() { + if ( $this->lastRow ) { + $latest = $this->counter == 1 && $this->mIsFirst; + $firstInList = $this->counter == 1; + if ( $this->mIsBackwards ) { + # Next row is unknown, but for UI reasons, probably exists if an offset has been specified + if ( $this->mOffset == '' ) { + $next = null; + } else { + $next = 'unknown'; + } + } else { + # The next row is the past-the-end row + $next = $this->mPastTheEndRow; + } + $this->counter++; + + $notifTimestamp = $this->getConfig()->get( 'ShowUpdatedMarker' ) + ? $this->getTitle()->getNotificationTimestamp( $this->getUser() ) + : false; + + $s = $this->historyLine( + $this->lastRow, $next, $notifTimestamp, $latest, $firstInList ); + } else { + $s = ''; + } + $s .= "</ul>\n"; + # Add second buttons only if there is more than one rev + if ( $this->getNumRows() > 2 ) { + $s .= $this->buttons; + } + $s .= '</form>'; + + return $s; + } + + /** + * Creates a submit button + * + * @param string $message Text of the submit button, will be escaped + * @param array $attributes + * @return string HTML output for the submit button + */ + function submitButton( $message, $attributes = [] ) { + # Disable submit button if history has 1 revision only + if ( $this->getNumRows() > 1 ) { + return Html::submitButton( $message, $attributes ); + } else { + return ''; + } + } + + /** + * Returns a row from the history printout. + * + * @todo document some more, and maybe clean up the code (some params redundant?) + * + * @param stdClass $row The database row corresponding to the previous line. + * @param mixed $next The database row corresponding to the next line + * (chronologically previous) + * @param bool|string $notificationtimestamp + * @param bool $latest Whether this row corresponds to the page's latest revision. + * @param bool $firstInList Whether this row corresponds to the first + * displayed on this history page. + * @return string HTML output for the row + */ + function historyLine( $row, $next, $notificationtimestamp = false, + $latest = false, $firstInList = false ) { + $rev = new Revision( $row, 0, $this->getTitle() ); + + if ( is_object( $next ) ) { + $prevRev = new Revision( $next, 0, $this->getTitle() ); + } else { + $prevRev = null; + } + + $curlink = $this->curLink( $rev, $latest ); + $lastlink = $this->lastLink( $rev, $next ); + $curLastlinks = $curlink . $this->historyPage->message['pipe-separator'] . $lastlink; + $histLinks = Html::rawElement( + 'span', + [ 'class' => 'mw-history-histlinks' ], + $this->msg( 'parentheses' )->rawParams( $curLastlinks )->escaped() + ); + + $diffButtons = $this->diffButtons( $rev, $firstInList ); + $s = $histLinks . $diffButtons; + + $link = $this->revLink( $rev ); + $classes = []; + + $del = ''; + $user = $this->getUser(); + $canRevDelete = $user->isAllowed( 'deleterevision' ); + // Show checkboxes for each revision, to allow for revision deletion and + // change tags + if ( $canRevDelete || $this->showTagEditUI ) { + $this->preventClickjacking(); + // If revision was hidden from sysops and we don't need the checkbox + // for anything else, disable it + if ( !$this->showTagEditUI && !$rev->userCan( Revision::DELETED_RESTRICTED, $user ) ) { + $del = Xml::check( 'deleterevisions', false, [ 'disabled' => 'disabled' ] ); + // Otherwise, enable the checkbox... + } else { + $del = Xml::check( 'showhiderevisions', false, + [ 'name' => 'ids[' . $rev->getId() . ']' ] ); + } + // User can only view deleted revisions... + } elseif ( $rev->getVisibility() && $user->isAllowed( 'deletedhistory' ) ) { + // If revision was hidden from sysops, disable the link + if ( !$rev->userCan( Revision::DELETED_RESTRICTED, $user ) ) { + $del = Linker::revDeleteLinkDisabled( false ); + // Otherwise, show the link... + } else { + $query = [ 'type' => 'revision', + 'target' => $this->getTitle()->getPrefixedDBkey(), 'ids' => $rev->getId() ]; + $del .= Linker::revDeleteLink( $query, + $rev->isDeleted( Revision::DELETED_RESTRICTED ), false ); + } + } + if ( $del ) { + $s .= " $del "; + } + + $lang = $this->getLanguage(); + $dirmark = $lang->getDirMark(); + + $s .= " $link"; + $s .= $dirmark; + $s .= " <span class='history-user'>" . + Linker::revUserTools( $rev, true ) . "</span>"; + $s .= $dirmark; + + if ( $rev->isMinor() ) { + $s .= ' ' . ChangesList::flag( 'minor', $this->getContext() ); + } + + # Sometimes rev_len isn't populated + if ( $rev->getSize() !== null ) { + # Size is always public data + $prevSize = isset( $this->parentLens[$row->rev_parent_id] ) + ? $this->parentLens[$row->rev_parent_id] + : 0; + $sDiff = ChangesList::showCharacterDifference( $prevSize, $rev->getSize() ); + $fSize = Linker::formatRevisionSize( $rev->getSize() ); + $s .= ' <span class="mw-changeslist-separator">. .</span> ' . "$fSize $sDiff"; + } + + # Text following the character difference is added just before running hooks + $s2 = Linker::revComment( $rev, false, true ); + + if ( $notificationtimestamp && ( $row->rev_timestamp >= $notificationtimestamp ) ) { + $s2 .= ' <span class="updatedmarker">' . $this->msg( 'updatedmarker' )->escaped() . '</span>'; + $classes[] = 'mw-history-line-updated'; + } + + $tools = []; + + # Rollback and undo links + if ( $prevRev && $this->getTitle()->quickUserCan( 'edit', $user ) ) { + if ( $latest && $this->getTitle()->quickUserCan( 'rollback', $user ) ) { + // Get a rollback link without the brackets + $rollbackLink = Linker::generateRollback( + $rev, + $this->getContext(), + [ 'verify', 'noBrackets' ] + ); + if ( $rollbackLink ) { + $this->preventClickjacking(); + $tools[] = $rollbackLink; + } + } + + if ( !$rev->isDeleted( Revision::DELETED_TEXT ) + && !$prevRev->isDeleted( Revision::DELETED_TEXT ) + ) { + # Create undo tooltip for the first (=latest) line only + $undoTooltip = $latest + ? [ 'title' => $this->msg( 'tooltip-undo' )->text() ] + : []; + $undolink = MediaWikiServices::getInstance()->getLinkRenderer()->makeKnownLink( + $this->getTitle(), + $this->msg( 'editundo' )->text(), + $undoTooltip, + [ + 'action' => 'edit', + 'undoafter' => $prevRev->getId(), + 'undo' => $rev->getId() + ] + ); + $tools[] = "<span class=\"mw-history-undo\">{$undolink}</span>"; + } + } + // Allow extension to add their own links here + Hooks::run( 'HistoryRevisionTools', [ $rev, &$tools, $prevRev, $user ] ); + + if ( $tools ) { + $s2 .= ' ' . $this->msg( 'parentheses' )->rawParams( $lang->pipeList( $tools ) )->escaped(); + } + + # Tags + list( $tagSummary, $newClasses ) = ChangeTags::formatSummaryRow( + $row->ts_tags, + 'history', + $this->getContext() + ); + $classes = array_merge( $classes, $newClasses ); + if ( $tagSummary !== '' ) { + $s2 .= " $tagSummary"; + } + + # Include separator between character difference and following text + if ( $s2 !== '' ) { + $s .= ' <span class="mw-changeslist-separator">. .</span> ' . $s2; + } + + $attribs = [ 'data-mw-revid' => $rev->getId() ]; + + Hooks::run( 'PageHistoryLineEnding', [ $this, &$row, &$s, &$classes, &$attribs ] ); + $attribs = wfArrayFilterByKey( $attribs, [ Sanitizer::class, 'isReservedDataAttribute' ] ); + + if ( $classes ) { + $attribs['class'] = implode( ' ', $classes ); + } + + return Xml::tags( 'li', $attribs, $s ) . "\n"; + } + + /** + * Create a link to view this revision of the page + * + * @param Revision $rev + * @return string + */ + function revLink( $rev ) { + $date = $this->getLanguage()->userTimeAndDate( $rev->getTimestamp(), $this->getUser() ); + if ( $rev->userCan( Revision::DELETED_TEXT, $this->getUser() ) ) { + $link = MediaWikiServices::getInstance()->getLinkRenderer()->makeKnownLink( + $this->getTitle(), + $date, + [ 'class' => 'mw-changeslist-date' ], + [ 'oldid' => $rev->getId() ] + ); + } else { + $link = htmlspecialchars( $date ); + } + if ( $rev->isDeleted( Revision::DELETED_TEXT ) ) { + $link = "<span class=\"history-deleted\">$link</span>"; + } + + return $link; + } + + /** + * Create a diff-to-current link for this revision for this page + * + * @param Revision $rev + * @param bool $latest This is the latest revision of the page? + * @return string + */ + function curLink( $rev, $latest ) { + $cur = $this->historyPage->message['cur']; + if ( $latest || !$rev->userCan( Revision::DELETED_TEXT, $this->getUser() ) ) { + return $cur; + } else { + return MediaWikiServices::getInstance()->getLinkRenderer()->makeKnownLink( + $this->getTitle(), + $cur, + [], + [ + 'diff' => $this->getWikiPage()->getLatest(), + 'oldid' => $rev->getId() + ] + ); + } + } + + /** + * Create a diff-to-previous link for this revision for this page. + * + * @param Revision $prevRev The revision being displayed + * @param stdClass|string|null $next The next revision in list (that is + * the previous one in chronological order). + * May either be a row, "unknown" or null. + * @return string + */ + function lastLink( $prevRev, $next ) { + $last = $this->historyPage->message['last']; + + if ( $next === null ) { + # Probably no next row + return $last; + } + + $linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer(); + if ( $next === 'unknown' ) { + # Next row probably exists but is unknown, use an oldid=prev link + return $linkRenderer->makeKnownLink( + $this->getTitle(), + $last, + [], + [ + 'diff' => $prevRev->getId(), + 'oldid' => 'prev' + ] + ); + } + + $nextRev = new Revision( $next ); + + if ( !$prevRev->userCan( Revision::DELETED_TEXT, $this->getUser() ) + || !$nextRev->userCan( Revision::DELETED_TEXT, $this->getUser() ) + ) { + return $last; + } + + return $linkRenderer->makeKnownLink( + $this->getTitle(), + $last, + [], + [ + 'diff' => $prevRev->getId(), + 'oldid' => $next->rev_id + ] + ); + } + + /** + * Create radio buttons for page history + * + * @param Revision $rev + * @param bool $firstInList Is this version the first one? + * + * @return string HTML output for the radio buttons + */ + function diffButtons( $rev, $firstInList ) { + if ( $this->getNumRows() > 1 ) { + $id = $rev->getId(); + $radio = [ 'type' => 'radio', 'value' => $id ]; + /** @todo Move title texts to javascript */ + if ( $firstInList ) { + $first = Xml::element( 'input', + array_merge( $radio, [ + 'style' => 'visibility:hidden', + 'name' => 'oldid', + 'id' => 'mw-oldid-null' ] ) + ); + $checkmark = [ 'checked' => 'checked' ]; + } else { + # Check visibility of old revisions + if ( !$rev->userCan( Revision::DELETED_TEXT, $this->getUser() ) ) { + $radio['disabled'] = 'disabled'; + $checkmark = []; // We will check the next possible one + } elseif ( !$this->oldIdChecked ) { + $checkmark = [ 'checked' => 'checked' ]; + $this->oldIdChecked = $id; + } else { + $checkmark = []; + } + $first = Xml::element( 'input', + array_merge( $radio, $checkmark, [ + 'name' => 'oldid', + 'id' => "mw-oldid-$id" ] ) ); + $checkmark = []; + } + $second = Xml::element( 'input', + array_merge( $radio, $checkmark, [ + 'name' => 'diff', + 'id' => "mw-diff-$id" ] ) ); + + return $first . $second; + } else { + return ''; + } + } + + /** + * This is called if a write operation is possible from the generated HTML + * @param bool $enable + */ + function preventClickjacking( $enable = true ) { + $this->preventClickjacking = $enable; + } + + /** + * Get the "prevent clickjacking" flag + * @return bool + */ + function getPreventClickjacking() { + return $this->preventClickjacking; + } + +} |