719 lines
21 KiB
PHP
719 lines
21 KiB
PHP
<?php
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/**
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* Page history
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*
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* Split off from Article.php and Skin.php, 2003-12-22
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* @file
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*/
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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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*/
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class HistoryPage {
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const DIR_PREV = 0;
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const DIR_NEXT = 1;
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var $article, $title, $skin;
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/**
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* Construct a new HistoryPage.
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*
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* @param $article Article
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*/
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function __construct( $article ) {
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global $wgUser;
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$this->article = $article;
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$this->title = $article->getTitle();
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$this->skin = $wgUser->getSkin();
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$this->preCacheMessages();
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}
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function getArticle() {
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return $this->article;
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}
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function getTitle() {
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return $this->title;
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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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function preCacheMessages() {
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// Precache various messages
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if( !isset( $this->message ) ) {
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$msgs = array( 'cur', 'last', 'pipe-separator' );
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foreach( $msgs as $msg ) {
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$this->message[$msg] = wfMsgExt( $msg, array( 'escapenoentities') );
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}
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}
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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 history() {
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global $wgOut, $wgRequest, $wgScript;
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/*
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* Allow client caching.
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*/
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if( $wgOut->checkLastModified( $this->article->getTouched() ) )
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return; // Client cache fresh and headers sent, nothing more to do.
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wfProfileIn( __METHOD__ );
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/*
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* Setup page variables.
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*/
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$wgOut->setPageTitle( wfMsg( 'history-title', $this->title->getPrefixedText() ) );
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$wgOut->setPageTitleActionText( wfMsg( 'history_short' ) );
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$wgOut->setArticleFlag( false );
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$wgOut->setArticleRelated( true );
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$wgOut->setRobotPolicy( 'noindex,nofollow' );
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$wgOut->setSyndicated( true );
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$wgOut->setFeedAppendQuery( 'action=history' );
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$wgOut->addScriptFile( 'history.js' );
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$logPage = SpecialPage::getTitleFor( 'Log' );
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$logLink = $this->skin->link(
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$logPage,
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wfMsgHtml( 'viewpagelogs' ),
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array(),
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array( 'page' => $this->title->getPrefixedText() ),
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array( 'known', 'noclasses' )
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);
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$wgOut->setSubtitle( $logLink );
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$feedType = $wgRequest->getVal( 'feed' );
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if( $feedType ) {
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wfProfileOut( __METHOD__ );
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return $this->feed( $feedType );
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}
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/*
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* Fail if article doesn't exist.
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*/
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if( !$this->title->exists() ) {
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$wgOut->addWikiMsg( 'nohistory' );
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# show deletion/move log if there is an entry
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LogEventsList::showLogExtract(
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$wgOut,
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array( 'delete', 'move' ),
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$this->title->getPrefixedText(),
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'',
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array( 'lim' => 10,
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'conds' => array( "log_action != 'revision'" ),
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'showIfEmpty' => false,
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'msgKey' => array( 'moveddeleted-notice' )
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)
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);
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wfProfileOut( __METHOD__ );
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return;
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}
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/**
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* Add date selector to quickly get to a certain time
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*/
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$year = $wgRequest->getInt( 'year' );
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$month = $wgRequest->getInt( 'month' );
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$tagFilter = $wgRequest->getVal( 'tagfilter' );
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$tagSelector = ChangeTags::buildTagFilterSelector( $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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* Note that this can run a *long* time if there are many revisions to look at.
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* We use "isBigDeletion" to determine if the history is too big to go through.
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* Additionally, only users with 'deleterevision' right can filter for deleted edits.
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*/
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if ( $this->title->userCan( 'deleterevision' ) && ( !$this->article->isBigDeletion() || $this->title->userCan( 'bigdelete' ) ) ) {
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$conds = ( $wgRequest->getBool( 'deleted' ) ) ? array("rev_deleted != '0'") : array();
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$checkDeleted = Xml::checkLabel( wfMsg( 'history-show-deleted' ), 'deleted', '', $wgRequest->getBool( 'deleted' ) ) . "\n";
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}
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else { # Don't filter and don't add the checkbox for filtering
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$conds = array();
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$checkDeleted = '';
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}
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$action = htmlspecialchars( $wgScript );
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$wgOut->addHTML(
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"<form action=\"$action\" method=\"get\" id=\"mw-history-searchform\">" .
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Xml::fieldset(
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wfMsg( 'history-fieldset-title' ),
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false,
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array( 'id' => 'mw-history-search' )
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) .
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Xml::hidden( 'title', $this->title->getPrefixedDBKey() ) . "\n" .
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Xml::hidden( 'action', 'history' ) . "\n" .
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Xml::dateMenu( $year, $month ) . ' ' .
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( $tagSelector ? ( implode( ' ', $tagSelector ) . ' ' ) : '' ) .
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$checkDeleted .
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Xml::submitButton( wfMsg( 'allpagessubmit' ) ) . "\n" .
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'</fieldset></form>'
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);
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wfRunHooks( 'PageHistoryBeforeList', array( &$this->article ) );
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/**
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* Do the list
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*/
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$pager = new HistoryPager( $this, $year, $month, $tagFilter, $conds );
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$wgOut->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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wfProfileOut( __METHOD__ );
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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 $limit Integer: the limit number of revisions to get
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* @param $offset Integer
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* @param $direction Integer: either HistoryPage::DIR_PREV or HistoryPage::DIR_NEXT
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* @return ResultWrapper
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*/
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function fetchRevisions( $limit, $offset, $direction ) {
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$dbr = wfGetDB( DB_SLAVE );
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if( $direction == HistoryPage::DIR_PREV )
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list($dirs, $oper) = array("ASC", ">=");
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else /* $direction == HistoryPage::DIR_NEXT */
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list($dirs, $oper) = array("DESC", "<=");
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if( $offset )
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$offsets = array("rev_timestamp $oper '$offset'");
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else
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$offsets = array();
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$page_id = $this->title->getArticleID();
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return $dbr->select( 'revision',
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Revision::selectFields(),
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array_merge(array("rev_page=$page_id"), $offsets),
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__METHOD__,
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array( 'ORDER BY' => "rev_timestamp $dirs",
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'USE INDEX' => 'page_timestamp', 'LIMIT' => $limit)
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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 $type String: feed type
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*/
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function feed( $type ) {
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global $wgFeedClasses, $wgRequest, $wgFeedLimit;
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if( !FeedUtils::checkFeedOutput($type) ) {
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return;
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}
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$feed = new $wgFeedClasses[$type](
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$this->title->getPrefixedText() . ' - ' .
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wfMsgForContent( 'history-feed-title' ),
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wfMsgForContent( 'history-feed-description' ),
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$this->title->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 = $wgRequest->getInt( 'limit', 10 );
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if( $limit > $wgFeedLimit || $limit < 1 ) {
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$limit = 10;
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}
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$items = $this->fetchRevisions($limit, 0, HistoryPage::DIR_NEXT);
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$feed->outHeader();
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if( $items ) {
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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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global $wgOut;
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return new FeedItem(
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wfMsgForContent( 'nohistory' ),
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$wgOut->parse( wfMsgForContent( 'history-feed-empty' ) ),
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$this->title->getFullUrl(),
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wfTimestamp( TS_MW ),
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'',
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$this->title->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 $row Object: 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( $row );
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$rev->setTitle( $this->title );
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$text = FeedUtils::formatDiffRow(
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$this->title,
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$this->title->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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global $wgContLang;
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$title = wfMsgForContent( 'history-feed-item-nocomment',
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$rev->getUserText(),
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$wgContLang->timeanddate( $rev->getTimestamp() ),
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$wgContLang->date( $rev->getTimestamp() ),
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$wgContLang->time( $rev->getTimestamp() )
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);
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} else {
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$title = $rev->getUserText() .
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wfMsgForContent( 'colon-separator' ) .
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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->title->getFullUrl( 'diff=' . $rev->getId() . '&oldid=prev' ),
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$rev->getTimestamp(),
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$rev->getUserText(),
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$this->title->getTalkPage()->getFullUrl()
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);
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}
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}
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/**
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* @ingroup Pager
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*/
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class HistoryPager extends ReverseChronologicalPager {
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public $lastRow = false, $counter, $historyPage, $title, $buttons, $conds;
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protected $oldIdChecked;
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function __construct( $historyPage, $year='', $month='', $tagFilter = '', $conds = array() ) {
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parent::__construct();
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$this->historyPage = $historyPage;
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$this->title = $this->historyPage->title;
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$this->tagFilter = $tagFilter;
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$this->getDateCond( $year, $month );
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$this->conds = $conds;
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}
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// For hook compatibility...
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function getArticle() {
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return $this->historyPage->getArticle();
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}
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function getQueryInfo() {
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$queryInfo = array(
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'tables' => array('revision'),
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'fields' => Revision::selectFields(),
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'conds' => array_merge( array('rev_page' => $this->historyPage->title->getArticleID() ), $this->conds ),
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'options' => array( 'USE INDEX' => array('revision' => 'page_timestamp') ),
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'join_conds' => array( 'tag_summary' => array( 'LEFT JOIN', 'ts_rev_id=rev_id' ) ),
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);
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ChangeTags::modifyDisplayQuery(
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$queryInfo['tables'],
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$queryInfo['fields'],
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$queryInfo['conds'],
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$queryInfo['join_conds'],
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$queryInfo['options'],
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$this->tagFilter
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);
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wfRunHooks( 'PageHistoryPager::getQueryInfo', array( &$this, &$queryInfo ) );
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return $queryInfo;
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}
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function getIndexField() {
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return 'rev_timestamp';
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}
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function formatRow( $row ) {
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if( $this->lastRow ) {
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$latest = ($this->counter == 1 && $this->mIsFirst);
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$firstInList = $this->counter == 1;
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$s = $this->historyLine( $this->lastRow, $row, $this->counter++,
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$this->title->getNotificationTimestamp(), $latest, $firstInList );
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} else {
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$s = '';
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}
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$this->lastRow = $row;
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return $s;
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}
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/**
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* Creates begin of history list with a submit button
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*
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* @return string HTML output
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*/
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function getStartBody() {
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global $wgScript, $wgUser, $wgOut, $wgContLang;
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$this->lastRow = false;
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$this->counter = 1;
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$this->oldIdChecked = 0;
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$wgOut->wrapWikiMsg( "<div class='mw-history-legend'>\n$1</div>", 'histlegend' );
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$s = Xml::openElement( 'form', array( 'action' => $wgScript,
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'id' => 'mw-history-compare' ) ) . "\n";
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$s .= Xml::hidden( 'title', $this->title->getPrefixedDbKey() ) . "\n";
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$s .= Xml::hidden( 'action', 'historysubmit' ) . "\n";
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$this->buttons = '<div>';
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if( $wgUser->isAllowed('deleterevision') ) {
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$float = $wgContLang->alignEnd();
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# Note bug #20966, <button> is non-standard in IE<8
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$this->buttons .= Xml::element( 'button',
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array(
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'type' => 'submit',
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'name' => 'revisiondelete',
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'value' => '1',
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'style' => "float: $float;",
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'class' => 'mw-history-revisiondelete-button',
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),
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wfMsg( 'showhideselectedversions' )
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) . "\n";
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}
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$this->buttons .= $this->submitButton( wfMsg( 'compareselectedversions'),
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array(
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'class' => 'historysubmit',
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'accesskey' => wfMsg( 'accesskey-compareselectedversions' ),
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'title' => wfMsg( 'tooltip-compareselectedversions' ),
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)
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) . "\n";
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$this->buttons .= '</div>';
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$s .= $this->buttons . '<ul id="pagehistory">' . "\n";
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return $s;
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}
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function getEndBody() {
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if( $this->lastRow ) {
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$latest = $this->counter == 1 && $this->mIsFirst;
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$firstInList = $this->counter == 1;
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if( $this->mIsBackwards ) {
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# Next row is unknown, but for UI reasons, probably exists if an offset has been specified
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if( $this->mOffset == '' ) {
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$next = null;
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} else {
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$next = 'unknown';
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}
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} else {
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# The next row is the past-the-end row
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$next = $this->mPastTheEndRow;
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}
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$s = $this->historyLine( $this->lastRow, $next, $this->counter++,
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$this->title->getNotificationTimestamp(), $latest, $firstInList );
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} else {
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$s = '';
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}
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$s .= "</ul>\n";
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# Add second buttons only if there is more than one rev
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if( $this->getNumRows() > 2 ) {
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$s .= $this->buttons;
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}
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$s .= '</form>';
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return $s;
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}
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/**
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* Creates a submit button
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*
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* @param $message String: text of the submit button, will be escaped
|
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* @param $attributes Array: attributes
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* @return String: HTML output for the submit button
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*/
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function submitButton( $message, $attributes = array() ) {
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# Disable submit button if history has 1 revision only
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if( $this->getNumRows() > 1 ) {
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return Xml::submitButton( $message , $attributes );
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} else {
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return '';
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}
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}
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|
|
/**
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* Returns a row from the history printout.
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*
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|
* @todo document some more, and maybe clean up the code (some params redundant?)
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*
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* @param $row Object: the database row corresponding to the previous line.
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* @param $next Mixed: the database row corresponding to the next line.
|
|
* @param $counter Integer: apparently a counter of what row number we're at, counted from the top row = 1.
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|
* @param $notificationtimestamp
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* @param $latest Boolean: whether this row corresponds to the page's latest revision.
|
|
* @param $firstInList Boolean: whether this row corresponds to the first displayed on this history page.
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|
* @return String: HTML output for the row
|
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*/
|
|
function historyLine( $row, $next, $counter = '', $notificationtimestamp = false,
|
|
$latest = false, $firstInList = false )
|
|
{
|
|
global $wgUser, $wgLang;
|
|
$rev = new Revision( $row );
|
|
$rev->setTitle( $this->title );
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|
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$curlink = $this->curLink( $rev, $latest );
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$lastlink = $this->lastLink( $rev, $next, $counter );
|
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$diffButtons = $this->diffButtons( $rev, $firstInList, $counter );
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|
$histLinks = Html::rawElement(
|
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'span',
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array( 'class' => 'mw-history-histlinks' ),
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'(' . $curlink . $this->historyPage->message['pipe-separator'] . $lastlink . ') '
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);
|
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$s = $histLinks . $diffButtons;
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$link = $this->revLink( $rev );
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$classes = array();
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|
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$del = '';
|
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// User can delete revisions...
|
|
if( $wgUser->isAllowed( 'deleterevision' ) ) {
|
|
// If revision was hidden from sysops, disable the checkbox
|
|
if( !$rev->userCan( Revision::DELETED_RESTRICTED ) ) {
|
|
$del = Xml::check( 'deleterevisions', false, array( 'disabled' => 'disabled' ) );
|
|
// Otherwise, enable the checkbox...
|
|
} else {
|
|
$del = Xml::check( 'showhiderevisions', false, array( 'name' => 'ids['.$rev->getId().']' ) );
|
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}
|
|
// User can only view deleted revisions...
|
|
} else if( $rev->getVisibility() && $wgUser->isAllowed( 'deletedhistory' ) ) {
|
|
// If revision was hidden from sysops, disable the link
|
|
if( !$rev->userCan( Revision::DELETED_RESTRICTED ) ) {
|
|
$cdel = $this->getSkin()->revDeleteLinkDisabled( false );
|
|
// Otherwise, show the link...
|
|
} else {
|
|
$query = array( 'type' => 'revision',
|
|
'target' => $this->title->getPrefixedDbkey(), 'ids' => $rev->getId() );
|
|
$del .= $this->getSkin()->revDeleteLink( $query,
|
|
$rev->isDeleted( Revision::DELETED_RESTRICTED ), false );
|
|
}
|
|
}
|
|
if( $del ) $s .= " $del ";
|
|
|
|
$s .= " $link";
|
|
$s .= " <span class='history-user'>" . $this->getSkin()->revUserTools( $rev, true ) . "</span>";
|
|
|
|
if( $rev->isMinor() ) {
|
|
$s .= ' ' . ChangesList::flag( 'minor' );
|
|
}
|
|
|
|
if( !is_null( $size = $rev->getSize() ) && !$rev->isDeleted( Revision::DELETED_TEXT ) ) {
|
|
$s .= ' ' . $this->getSkin()->formatRevisionSize( $size );
|
|
}
|
|
|
|
$s .= $this->getSkin()->revComment( $rev, false, true );
|
|
|
|
if( $notificationtimestamp && ($row->rev_timestamp >= $notificationtimestamp) ) {
|
|
$s .= ' <span class="updatedmarker">' . wfMsgHtml( 'updatedmarker' ) . '</span>';
|
|
}
|
|
|
|
$tools = array();
|
|
|
|
# Rollback and undo links
|
|
if( !is_null( $next ) && is_object( $next ) ) {
|
|
if( $latest && $this->title->userCan( 'rollback' ) && $this->title->userCan( 'edit' ) ) {
|
|
$tools[] = '<span class="mw-rollback-link">'.
|
|
$this->getSkin()->buildRollbackLink( $rev ).'</span>';
|
|
}
|
|
|
|
if( $this->title->quickUserCan( 'edit' )
|
|
&& !$rev->isDeleted( Revision::DELETED_TEXT )
|
|
&& !$next->rev_deleted & Revision::DELETED_TEXT )
|
|
{
|
|
# Create undo tooltip for the first (=latest) line only
|
|
$undoTooltip = $latest
|
|
? array( 'title' => wfMsg( 'tooltip-undo' ) )
|
|
: array();
|
|
$undolink = $this->getSkin()->link(
|
|
$this->title,
|
|
wfMsgHtml( 'editundo' ),
|
|
$undoTooltip,
|
|
array(
|
|
'action' => 'edit',
|
|
'undoafter' => $next->rev_id,
|
|
'undo' => $rev->getId()
|
|
),
|
|
array( 'known', 'noclasses' )
|
|
);
|
|
$tools[] = "<span class=\"mw-history-undo\">{$undolink}</span>";
|
|
}
|
|
}
|
|
|
|
if( $tools ) {
|
|
$s .= ' (' . $wgLang->pipeList( $tools ) . ')';
|
|
}
|
|
|
|
# Tags
|
|
list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow( $row->ts_tags, 'history' );
|
|
$classes = array_merge( $classes, $newClasses );
|
|
$s .= " $tagSummary";
|
|
|
|
wfRunHooks( 'PageHistoryLineEnding', array( $this, &$row , &$s, &$classes ) );
|
|
|
|
$attribs = array();
|
|
if ( $classes ) {
|
|
$attribs['class'] = implode( ' ', $classes );
|
|
}
|
|
|
|
return Xml::tags( 'li', $attribs, $s ) . "\n";
|
|
}
|
|
|
|
/**
|
|
* Create a link to view this revision of the page
|
|
*
|
|
* @param $rev Revision
|
|
* @return String
|
|
*/
|
|
function revLink( $rev ) {
|
|
global $wgLang;
|
|
$date = $wgLang->timeanddate( wfTimestamp(TS_MW, $rev->getTimestamp()), true );
|
|
$date = htmlspecialchars( $date );
|
|
if( !$rev->isDeleted( Revision::DELETED_TEXT ) ) {
|
|
$link = $this->getSkin()->link(
|
|
$this->title,
|
|
$date,
|
|
array(),
|
|
array( 'oldid' => $rev->getId() ),
|
|
array( 'known', 'noclasses' )
|
|
);
|
|
} else {
|
|
$link = "<span class=\"history-deleted\">$date</span>";
|
|
}
|
|
return $link;
|
|
}
|
|
|
|
/**
|
|
* Create a diff-to-current link for this revision for this page
|
|
*
|
|
* @param $rev Revision
|
|
* @param $latest Boolean: 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 ) ) {
|
|
return $cur;
|
|
} else {
|
|
return $this->getSkin()->link(
|
|
$this->title,
|
|
$cur,
|
|
array(),
|
|
array(
|
|
'diff' => $this->title->getLatestRevID(),
|
|
'oldid' => $rev->getId()
|
|
),
|
|
array( 'known', 'noclasses' )
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Create a diff-to-previous link for this revision for this page.
|
|
*
|
|
* @param $prevRev Revision: the previous revision
|
|
* @param $next Mixed: the newer revision
|
|
* @param $counter Integer: what row on the history list this is
|
|
* @return String
|
|
*/
|
|
function lastLink( $prevRev, $next, $counter ) {
|
|
$last = $this->historyPage->message['last'];
|
|
# $next may either be a Row, null, or "unkown"
|
|
$nextRev = is_object($next) ? new Revision( $next ) : $next;
|
|
if( is_null($next) ) {
|
|
# Probably no next row
|
|
return $last;
|
|
} elseif( $next === 'unknown' ) {
|
|
# Next row probably exists but is unknown, use an oldid=prev link
|
|
return $this->getSkin()->link(
|
|
$this->title,
|
|
$last,
|
|
array(),
|
|
array(
|
|
'diff' => $prevRev->getId(),
|
|
'oldid' => 'prev'
|
|
),
|
|
array( 'known', 'noclasses' )
|
|
);
|
|
} elseif( !$prevRev->userCan(Revision::DELETED_TEXT) || !$nextRev->userCan(Revision::DELETED_TEXT) ) {
|
|
return $last;
|
|
} else {
|
|
return $this->getSkin()->link(
|
|
$this->title,
|
|
$last,
|
|
array(),
|
|
array(
|
|
'diff' => $prevRev->getId(),
|
|
'oldid' => $next->rev_id
|
|
),
|
|
array( 'known', 'noclasses' )
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Create radio buttons for page history
|
|
*
|
|
* @param $rev Revision object
|
|
* @param $firstInList Boolean: is this version the first one?
|
|
* @param $counter Integer: a counter of what row number we're at, counted from the top row = 1.
|
|
* @return String: HTML output for the radio buttons
|
|
*/
|
|
function diffButtons( $rev, $firstInList, $counter ) {
|
|
if( $this->getNumRows() > 1 ) {
|
|
$id = $rev->getId();
|
|
$radio = array( 'type' => 'radio', 'value' => $id );
|
|
/** @todo: move title texts to javascript */
|
|
if( $firstInList ) {
|
|
$first = Xml::element( 'input',
|
|
array_merge( $radio, array(
|
|
'style' => 'visibility:hidden',
|
|
'name' => 'oldid',
|
|
'id' => 'mw-oldid-null' ) )
|
|
);
|
|
$checkmark = array( 'checked' => 'checked' );
|
|
} else {
|
|
# Check visibility of old revisions
|
|
if( !$rev->userCan( Revision::DELETED_TEXT ) ) {
|
|
$radio['disabled'] = 'disabled';
|
|
$checkmark = array(); // We will check the next possible one
|
|
} else if( $counter == 2 || !$this->oldIdChecked ) {
|
|
$checkmark = array( 'checked' => 'checked' );
|
|
$this->oldIdChecked = $id;
|
|
} else {
|
|
$checkmark = array();
|
|
}
|
|
$first = Xml::element( 'input',
|
|
array_merge( $radio, $checkmark, array(
|
|
'name' => 'oldid',
|
|
'id' => "mw-oldid-$id" ) ) );
|
|
$checkmark = array();
|
|
}
|
|
$second = Xml::element( 'input',
|
|
array_merge( $radio, $checkmark, array(
|
|
'name' => 'diff',
|
|
'id' => "mw-diff-$id" ) ) );
|
|
return $first . $second;
|
|
} else {
|
|
return '';
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Backwards-compatibility aliases
|
|
*/
|
|
class PageHistory extends HistoryPage {}
|
|
class PageHistoryPager extends HistoryPager {}
|