79de0a4e5a
The WMF websites redirect from HTTP to HTTPS. Change-Id: I916c97697b4ffa9774eec9c8e6ab650a08bb6edd
446 lines
12 KiB
PHP
446 lines
12 KiB
PHP
<?php
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/**
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* Page history
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Actions
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*/
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use MediaWiki\MediaWikiServices;
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use Wikimedia\Rdbms\ResultWrapper;
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use Wikimedia\Rdbms\FakeResultWrapper;
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/**
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* This class handles printing the history page for an article. In order to
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* be efficient, it uses timestamps rather than offsets for paging, to avoid
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* costly LIMIT,offset queries.
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*
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* Construct it by passing in an Article, and call $h->history() to print the
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* history.
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*
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* @ingroup Actions
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*/
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class HistoryAction extends FormlessAction {
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const DIR_PREV = 0;
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const DIR_NEXT = 1;
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/** @var array Array of message keys and strings */
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public $message;
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public function getName() {
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return 'history';
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}
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public function requiresWrite() {
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return false;
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}
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public function requiresUnblock() {
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return false;
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}
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protected function getPageTitle() {
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return $this->msg( 'history-title', $this->getTitle()->getPrefixedText() )->text();
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}
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protected function getDescription() {
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// Creation of a subtitle link pointing to [[Special:Log]]
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$linkRenderer = MediaWikiServices::getInstance()->getLinkRenderer();
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$subtitle = $linkRenderer->makeKnownLink(
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SpecialPage::getTitleFor( 'Log' ),
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$this->msg( 'viewpagelogs' )->text(),
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[],
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[ 'page' => $this->getTitle()->getPrefixedText() ]
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);
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$links = [];
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// Allow extensions to add more links
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Hooks::run( 'HistoryPageToolLinks', [ $this->getContext(), $linkRenderer, &$links ] );
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if ( $links ) {
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$subtitle .= ''
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. $this->msg( 'word-separator' )->escaped()
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. $this->msg( 'parentheses' )
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->rawParams( $this->getLanguage()->pipeList( $links ) )
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->escaped();
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}
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return Html::rawElement( 'div', [ 'class' => 'mw-history-subtitle' ], $subtitle );
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}
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/**
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* @return WikiPage|Article|ImagePage|CategoryPage|Page The Article object we are working on.
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*/
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public function getArticle() {
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return $this->page;
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}
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/**
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* As we use the same small set of messages in various methods and that
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* they are called often, we call them once and save them in $this->message
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*/
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private function preCacheMessages() {
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// Precache various messages
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if ( !isset( $this->message ) ) {
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$msgs = [ 'cur', 'last', 'pipe-separator' ];
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foreach ( $msgs as $msg ) {
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$this->message[$msg] = $this->msg( $msg )->escaped();
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}
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}
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}
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/**
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* @param WebRequest $request
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* @return string
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*/
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private function getTimestampFromRequest( WebRequest $request ) {
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// Backwards compatibility checks for URIs with only year and/or month.
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$year = $request->getInt( 'year' );
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$month = $request->getInt( 'month' );
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$day = null;
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if ( $year !== 0 || $month !== 0 ) {
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if ( $year === 0 ) {
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$year = MWTimestamp::getLocalInstance()->format( 'Y' );
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}
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if ( $month < 1 || $month > 12 ) {
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// month is invalid so treat as December (all months)
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$month = 12;
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}
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// month is valid so check day
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$day = cal_days_in_month( CAL_GREGORIAN, $month, $year );
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// Left pad the months and days
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$month = str_pad( $month, 2, "0", STR_PAD_LEFT );
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$day = str_pad( $day, 2, "0", STR_PAD_LEFT );
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}
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$before = $request->getVal( 'date-range-to' );
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if ( $before ) {
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$parts = explode( '-', $before );
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$year = $parts[0];
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// check date input is valid
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if ( count( $parts ) === 3 ) {
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$month = $parts[1];
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$day = $parts[2];
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}
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}
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return $year && $month && $day ? $year . '-' . $month . '-' . $day : '';
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}
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/**
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* Print the history page for an article.
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*/
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function onView() {
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$out = $this->getOutput();
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$request = $this->getRequest();
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/**
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* Allow client caching.
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*/
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if ( $out->checkLastModified( $this->page->getTouched() ) ) {
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return; // Client cache fresh and headers sent, nothing more to do.
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}
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$this->preCacheMessages();
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$config = $this->context->getConfig();
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# Fill in the file cache if not set already
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if ( HTMLFileCache::useFileCache( $this->getContext() ) ) {
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$cache = new HTMLFileCache( $this->getTitle(), 'history' );
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if ( !$cache->isCacheGood( /* Assume up to date */ ) ) {
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ob_start( [ &$cache, 'saveToFileCache' ] );
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}
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}
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// Setup page variables.
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$out->setFeedAppendQuery( 'action=history' );
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$out->addModules( 'mediawiki.action.history' );
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$out->addModuleStyles( [
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'mediawiki.interface.helpers.styles',
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'mediawiki.action.history.styles',
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'mediawiki.special.changeslist',
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] );
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if ( $config->get( 'UseMediaWikiUIEverywhere' ) ) {
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$out = $this->getOutput();
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$out->addModuleStyles( [
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'mediawiki.ui.input',
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'mediawiki.ui.checkbox',
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] );
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}
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// Handle atom/RSS feeds.
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$feedType = $request->getRawVal( 'feed' );
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if ( $feedType !== null ) {
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$this->feed( $feedType );
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return;
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}
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$this->addHelpLink(
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'https://meta.wikimedia.org/wiki/Special:MyLanguage/Help:Page_history',
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true
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);
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// Fail nicely if article doesn't exist.
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if ( !$this->page->exists() ) {
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global $wgSend404Code;
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if ( $wgSend404Code ) {
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$out->setStatusCode( 404 );
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}
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$out->addWikiMsg( 'nohistory' );
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$dbr = wfGetDB( DB_REPLICA );
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# show deletion/move log if there is an entry
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LogEventsList::showLogExtract(
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$out,
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[ 'delete', 'move', 'protect' ],
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$this->getTitle(),
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'',
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[ 'lim' => 10,
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'conds' => [ 'log_action != ' . $dbr->addQuotes( 'revision' ) ],
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'showIfEmpty' => false,
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'msgKey' => [ 'moveddeleted-notice' ]
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]
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);
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return;
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}
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$ts = $this->getTimestampFromRequest( $request );
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$tagFilter = $request->getVal( 'tagfilter' );
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/**
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* Option to show only revisions that have been (partially) hidden via RevisionDelete
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*/
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if ( $request->getBool( 'deleted' ) ) {
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$conds = [ 'rev_deleted != 0' ];
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} else {
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$conds = [];
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}
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// Add the general form.
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$fields = [
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[
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'name' => 'title',
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'type' => 'hidden',
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'default' => $this->getTitle()->getPrefixedDBkey(),
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],
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[
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'name' => 'action',
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'type' => 'hidden',
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'default' => 'history',
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],
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[
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'type' => 'date',
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'default' => $ts,
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'label' => $this->msg( 'date-range-to' )->text(),
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'name' => 'date-range-to',
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],
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[
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'label-raw' => $this->msg( 'tag-filter' )->parse(),
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'type' => 'tagfilter',
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'id' => 'tagfilter',
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'name' => 'tagfilter',
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'value' => $tagFilter,
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]
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];
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if ( $this->getUser()->isAllowed( 'deletedhistory' ) ) {
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$fields[] = [
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'type' => 'check',
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'label' => $this->msg( 'history-show-deleted' )->text(),
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'default' => $request->getBool( 'deleted' ),
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'name' => 'deleted',
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];
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}
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$out->enableOOUI();
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$htmlForm = HTMLForm::factory( 'ooui', $fields, $this->getContext() );
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$htmlForm
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->setMethod( 'get' )
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->setAction( wfScript() )
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->setCollapsibleOptions( true )
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->setId( 'mw-history-searchform' )
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->setSubmitText( $this->msg( 'historyaction-submit' )->text() )
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->setWrapperAttributes( [ 'id' => 'mw-history-search' ] )
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->setWrapperLegend( $this->msg( 'history-fieldset-title' )->text() );
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$htmlForm->loadData();
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$out->addHTML( $htmlForm->getHTML( false ) );
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Hooks::run( 'PageHistoryBeforeList', [ &$this->page, $this->getContext() ] );
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// Create and output the list.
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$dateComponents = explode( '-', $ts );
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if ( count( $dateComponents ) > 1 ) {
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$y = $dateComponents[0];
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$m = $dateComponents[1];
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$d = $dateComponents[2];
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} else {
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$y = '';
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$m = '';
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$d = '';
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}
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$pager = new HistoryPager( $this, $y, $m, $tagFilter, $conds, $d );
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$out->addHTML(
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$pager->getNavigationBar() .
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$pager->getBody() .
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$pager->getNavigationBar()
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);
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$out->preventClickjacking( $pager->getPreventClickjacking() );
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}
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/**
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* Fetch an array of revisions, specified by a given limit, offset and
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* direction. This is now only used by the feeds. It was previously
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* used by the main UI but that's now handled by the pager.
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*
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* @param int $limit The limit number of revisions to get
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* @param int $offset
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* @param int $direction Either self::DIR_PREV or self::DIR_NEXT
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* @return ResultWrapper
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*/
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function fetchRevisions( $limit, $offset, $direction ) {
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// Fail if article doesn't exist.
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if ( !$this->getTitle()->exists() ) {
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return new FakeResultWrapper( [] );
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}
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$dbr = wfGetDB( DB_REPLICA );
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if ( $direction === self::DIR_PREV ) {
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list( $dirs, $oper ) = [ "ASC", ">=" ];
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} else { /* $direction === self::DIR_NEXT */
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list( $dirs, $oper ) = [ "DESC", "<=" ];
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}
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if ( $offset ) {
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$offsets = [ "rev_timestamp $oper " . $dbr->addQuotes( $dbr->timestamp( $offset ) ) ];
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} else {
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$offsets = [];
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}
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$page_id = $this->page->getId();
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$revQuery = Revision::getQueryInfo();
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return $dbr->select(
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$revQuery['tables'],
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$revQuery['fields'],
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array_merge( [ 'rev_page' => $page_id ], $offsets ),
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__METHOD__,
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[
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'ORDER BY' => "rev_timestamp $dirs",
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'USE INDEX' => [ 'revision' => 'page_timestamp' ],
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'LIMIT' => $limit
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],
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$revQuery['joins']
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);
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}
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/**
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* Output a subscription feed listing recent edits to this page.
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*
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* @param string $type Feed type
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*/
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function feed( $type ) {
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if ( !FeedUtils::checkFeedOutput( $type ) ) {
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return;
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}
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$request = $this->getRequest();
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$feedClasses = $this->context->getConfig()->get( 'FeedClasses' );
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/** @var RSSFeed|AtomFeed $feed */
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$feed = new $feedClasses[$type](
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$this->getTitle()->getPrefixedText() . ' - ' .
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$this->msg( 'history-feed-title' )->inContentLanguage()->text(),
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$this->msg( 'history-feed-description' )->inContentLanguage()->text(),
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$this->getTitle()->getFullURL( 'action=history' )
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);
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// Get a limit on number of feed entries. Provide a sane default
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// of 10 if none is defined (but limit to $wgFeedLimit max)
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$limit = $request->getInt( 'limit', 10 );
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$limit = min(
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max( $limit, 1 ),
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$this->context->getConfig()->get( 'FeedLimit' )
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);
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$items = $this->fetchRevisions( $limit, 0, self::DIR_NEXT );
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// Generate feed elements enclosed between header and footer.
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$feed->outHeader();
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if ( $items->numRows() ) {
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foreach ( $items as $row ) {
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$feed->outItem( $this->feedItem( $row ) );
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}
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} else {
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$feed->outItem( $this->feedEmpty() );
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}
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$feed->outFooter();
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}
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function feedEmpty() {
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return new FeedItem(
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$this->msg( 'nohistory' )->inContentLanguage()->text(),
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$this->msg( 'history-feed-empty' )->inContentLanguage()->parseAsBlock(),
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$this->getTitle()->getFullURL(),
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wfTimestamp( TS_MW ),
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'',
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$this->getTitle()->getTalkPage()->getFullURL()
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);
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}
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/**
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* Generate a FeedItem object from a given revision table row
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* Borrows Recent Changes' feed generation functions for formatting;
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* includes a diff to the previous revision (if any).
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*
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* @param stdClass|array $row Database row
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* @return FeedItem
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*/
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function feedItem( $row ) {
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$rev = new Revision( $row, 0, $this->getTitle() );
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$text = FeedUtils::formatDiffRow(
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$this->getTitle(),
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$this->getTitle()->getPreviousRevisionID( $rev->getId() ),
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$rev->getId(),
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$rev->getTimestamp(),
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$rev->getComment()
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);
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if ( $rev->getComment() == '' ) {
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$contLang = MediaWikiServices::getInstance()->getContentLanguage();
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$title = $this->msg( 'history-feed-item-nocomment',
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$rev->getUserText(),
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$contLang->timeanddate( $rev->getTimestamp() ),
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$contLang->date( $rev->getTimestamp() ),
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$contLang->time( $rev->getTimestamp() )
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)->inContentLanguage()->text();
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} else {
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$title = $rev->getUserText() .
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$this->msg( 'colon-separator' )->inContentLanguage()->text() .
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FeedItem::stripComment( $rev->getComment() );
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}
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return new FeedItem(
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$title,
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$text,
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$this->getTitle()->getFullURL( 'diff=' . $rev->getId() . '&oldid=prev' ),
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$rev->getTimestamp(),
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$rev->getUserText(),
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$this->getTitle()->getTalkPage()->getFullURL()
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);
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}
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}
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