326 lines
8.9 KiB
PHP
326 lines
8.9 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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* @package MediaWiki
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*/
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include_once ( "SpecialValidate.php" );
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/**
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* @todo document
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* @package MediaWiki
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*/
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class PageHistory {
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var $mArticle, $mTitle, $mSkin;
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var $lastdate;
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var $linesonpage;
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function PageHistory( $article ) {
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$this->mArticle =& $article;
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$this->mTitle =& $article->mTitle;
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}
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# This shares a lot of issues (and code) with Recent Changes
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function history() {
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global $wgUser, $wgOut, $wgLang, $wgShowUpdatedMarker, $wgRequest,
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$wgTitle, $wgUseValidation ;
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# If page hasn't changed, client can cache this
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if( $wgOut->checkLastModified( $this->mArticle->getTimestamp() ) ){
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# Client cache fresh and headers sent, nothing more to do.
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return;
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}
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$fname = 'PageHistory::history';
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wfProfileIn( $fname );
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$wgOut->setPageTitle( $this->mTitle->getPRefixedText() );
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$wgOut->setSubtitle( wfMsg( 'revhistory' ) );
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$wgOut->setArticleFlag( false );
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$wgOut->setArticleRelated( true );
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$wgOut->setRobotpolicy( 'noindex,nofollow' );
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$id = $this->mTitle->getArticleID();
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if( $id == 0 ) {
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$wgOut->addHTML( wfMsg( 'nohistory' ) );
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wfProfileOut( $fname );
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return;
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}
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$limit = $wgRequest->getInt('limit');
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if (!$limit) $limit = 50;
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$offset = $wgRequest->getText('offset');
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if (!isset($offset) || !preg_match("/^[0-9]+$/", $offset)) $offset = 0;
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/* Check one extra row to see whether we need to show 'next' and diff links */
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$limitplus = $limit + 1;
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$namespace = $this->mTitle->getNamespace();
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$title = $this->mTitle->getText();
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$uid = $wgUser->getID();
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$db =& wfGetDB( DB_SLAVE );
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if ($uid && $wgShowUpdatedMarker )
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$notificationtimestamp = $db->selectField( 'watchlist',
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'wl_notificationtimestamp',
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array( 'wl_namespace' => $namespace, 'wl_title' => $this->mTitle->getDBkey(), 'wl_user' => $uid ),
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$fname );
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else $notificationtimestamp = false;
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$use_index = $db->useIndexClause( 'page_timestamp' );
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$revision = $db->tableName( 'revision' );
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$limits = $offsets = "";
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$dir = 0;
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if ($wgRequest->getText("dir") == "prev")
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$dir = 1;
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list($dirs, $oper) = array("DESC", "<");
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if ($dir) {
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list($dirs, $oper) = array("ASC", ">");
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}
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if ($offset)
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$offsets .= " AND rev_timestamp $oper '$offset' ";
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if ($limit)
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$limits .= " LIMIT $limitplus ";
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$sql = "SELECT rev_id,rev_user," .
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"rev_comment,rev_user_text,rev_timestamp,rev_minor_edit,rev_deleted ".
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"FROM $revision $use_index " .
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"WHERE rev_page=$id " .
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$offsets .
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"ORDER BY rev_timestamp $dirs " .
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$limits;
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$res = $db->query( $sql, $fname );
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$revs = $db->numRows( $res );
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if( $revs < $limitplus ) // the sql above tries to fetch one extra
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$this->linesonpage = $revs;
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else
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$this->linesonpage = $revs - 1;
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$atend = ($revs < $limitplus);
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$this->mSkin = $wgUser->getSkin();
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$pages = array();
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$lowts = 0;
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while ($line = $db->fetchObject($res)) {
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$pages[] = $line;
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}
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if ($dir) $pages = array_reverse($pages);
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if (count($pages) > 1)
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$lowts = $pages[count($pages) - 2]->rev_timestamp;
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else
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$lowts = $pages[count($pages) - 1]->rev_timestamp;
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$prevurl = $wgTitle->escapeLocalURL("action=history&dir=prev&offset={$offset}&limit={$limit}");
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$nexturl = $wgTitle->escapeLocalURL("action=history&offset={$lowts}&limit={$limit}");
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$urls = array();
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foreach (array(20, 50, 100, 250, 500) as $num) {
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$urls[] = "<a href=\"".$wgTitle->escapeLocalURL(
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"action=history&offset={$offset}&limit={$num}")."\">".$wgLang->formatNum($num)."</a>";
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}
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$bits = implode($urls, ' | ');
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$numbar = wfMsg("viewprevnext",
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"<a href=\"$prevurl\">".wfMsg("prevn", $limit)."</a>",
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"<a href=\"$nexturl\">".wfMsg("nextn", $limit)."</a>",
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$bits);
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$s = $numbar;
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$s .= $this->beginHistoryList();
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$counter = 1;
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foreach($pages as $i => $line) {
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$first = ($counter == 1 && $offset == 0);
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$next = isset( $pages[$i + 1] ) ? $pages[$i + 1 ] : null;
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$s .= $this->historyLine( $line, $next, $counter, $notificationtimestamp, $first );
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$counter++;
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}
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$s .= $this->endHistoryList( !$atend );
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$s .= $numbar;
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# Validation line
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if ( isset ( $wgUseValidation ) && $wgUseValidation ) {
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$s .= "<p>" . Validation::link2statistics ( $this->mArticle ) . "</p>" ;
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}
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$wgOut->addHTML( $s );
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wfProfileOut( $fname );
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}
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function beginHistoryList() {
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global $wgTitle;
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$this->lastdate = '';
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$s = '<p>' . wfMsg( 'histlegend' ) . '</p>';
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$s .= '<form action="' . $wgTitle->escapeLocalURL( '-' ) . '" method="get">';
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$prefixedkey = htmlspecialchars($wgTitle->getPrefixedDbKey());
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$s .= "<input type='hidden' name='title' value=\"{$prefixedkey}\" />\n";
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$s .= $this->submitButton();
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$s .= '<ul id="pagehistory">';
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return $s;
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}
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function endHistoryList() {
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$last = wfMsg( 'last' );
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$s = '</ul>';
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$s .= $this->submitButton( array( 'id' => 'historysubmit' ) );
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$s .= '</form>';
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return $s;
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}
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function submitButton( $bits = array() ) {
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return ( $this->linesonpage > 0 )
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? wfElement( 'input', array_merge( $bits,
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array(
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'class' => 'historysubmit',
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'type' => 'submit',
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'accesskey' => wfMsg( 'accesskey-compareselectedversions' ),
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'title' => wfMsg( 'tooltip-compareselectedversions' ),
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'value' => wfMsg( 'compareselectedversions' ),
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) ) )
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: '';
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}
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function historyLine( $row, $next, $counter = '', $notificationtimestamp = false, $latest = false ) {
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global $wgLang, $wgContLang;
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static $message;
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if( !isset( $message ) ) {
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foreach( explode( ' ', 'cur last selectolderversionfordiff selectnewerversionfordiff minoreditletter' ) as $msg ) {
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$message[$msg] = wfMsg( $msg );
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}
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}
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$link = $this->revLink( $row );
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if ( 0 == $row->rev_user ) {
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$contribsPage =& Title::makeTitle( NS_SPECIAL, 'Contributions' );
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$ul = $this->mSkin->makeKnownLinkObj( $contribsPage,
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htmlspecialchars( $row->rev_user_text ),
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'target=' . urlencode( $row->rev_user_text ) );
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} else {
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$userPage =& Title::makeTitle( NS_USER, $row->rev_user_text );
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$ul = $this->mSkin->makeLinkObj( $userPage , htmlspecialchars( $row->rev_user_text ) );
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}
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$s = '<li>';
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if( $row->rev_deleted ) {
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$s .= '<span class="deleted">';
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}
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$curlink = $this->curLink( $row, $latest );
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$lastlink = $this->lastLink( $row, $next, $counter );
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$arbitrary = $this->diffButtons( $row, $latest, $counter );
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$s .= "({$curlink}) ({$lastlink}) $arbitrary {$link} <span class='user'>{$ul}</span>";
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if( $row->rev_minor_edit ) {
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$s .= ' ' . wfElement( 'span', array( 'class' => 'minor' ), $message['minoreditletter'] );
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}
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$s .= $this->mSkin->commentBlock( $row->rev_comment, $this->mTitle );
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if ($notificationtimestamp && ($row->rev_timestamp >= $notificationtimestamp)) {
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$s .= wfMsg( 'updatedmarker' );
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}
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if( $row->rev_deleted ) {
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$s .= "</span> " . htmlspecialchars( wfMsg( 'deletedrev' ) );
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}
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$s .= '</li>';
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return $s;
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}
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function revLink( $row ) {
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global $wgUser, $wgLang;
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$date = $wgLang->timeanddate( $row->rev_timestamp, true );
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if( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) {
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return $date;
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} else {
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return $this->mSkin->makeKnownLinkObj(
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$this->mTitle,
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$date,
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'oldid='.$row->rev_id );
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}
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}
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function curLink( $row, $latest ) {
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global $wgUser;
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$cur = htmlspecialchars( wfMsg( 'cur' ) );
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if( $latest
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|| ( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) ) {
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return $cur;
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} else {
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return $this->mSkin->makeKnownLinkObj(
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$this->mTitle,
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$cur,
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'diff=0&oldid=' . $row->rev_id );
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}
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}
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function lastLink( $row, $next, $counter ) {
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global $wgUser;
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$last = htmlspecialchars( wfMsg( 'last' ) );
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if( is_null( $next )
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|| ( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) ) {
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return $last;
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} else {
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return $this->mSkin->makeKnownLinkObj(
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$this->mTitle,
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$last,
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"diff={$row->rev_id}&oldid={$next->rev_id}",
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'',
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'',
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' tabindex="'.$counter.'"' );
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}
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}
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function diffButtons( $row, $latest, $counter ) {
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global $wgUser;
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if( $this->linesonpage > 1) {
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$radio = array(
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'type' => 'radio',
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'value' => $row->rev_id,
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'title' => wfMsg( 'selectolderversionfordiff' )
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);
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if( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) {
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$radio['disabled'] = 'disabled';
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}
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# XXX: move title texts to javascript
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if ( $latest ) {
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$first = wfElement( 'input', array_merge(
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$radio,
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array(
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'style' => 'visibility:hidden',
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'name' => 'oldid' ) ) );
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$checkmark = array( 'checked' => 'checked' );
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} else {
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if( $counter == 2 ) {
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$checkmark = array( 'checked' => 'checked' );
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} else {
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$checkmark = array();
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}
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$first = wfElement( 'input', array_merge(
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$radio,
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$checkmark,
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array( 'name' => 'oldid' ) ) );
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$checkmark = array();
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}
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$second = wfElement( 'input', array_merge(
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$radio,
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$checkmark,
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array( 'name' => 'diff' ) ) );
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return $first . $second;
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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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?>
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