516 lines
14 KiB
PHP
516 lines
14 KiB
PHP
<?php
|
|
/**
|
|
* Page history
|
|
*
|
|
* Split off from Article.php and Skin.php, 2003-12-22
|
|
* @package MediaWiki
|
|
*/
|
|
|
|
include_once ( "SpecialValidate.php" );
|
|
|
|
define("DIR_PREV", 0);
|
|
define("DIR_NEXT", 1);
|
|
|
|
/**
|
|
* This class handles printing the history page for an article. In order to
|
|
* be efficient, it uses timestamps rather than offsets for paging, to avoid
|
|
* costly LIMIT,offset queries.
|
|
*
|
|
* Construct it by passing in an Article, and call $h->history() to print the
|
|
* history.
|
|
*
|
|
* @package MediaWiki
|
|
*/
|
|
|
|
class PageHistory {
|
|
var $mArticle, $mTitle, $mSkin;
|
|
var $lastdate;
|
|
var $linesonpage;
|
|
var $mNotificationTimestamp;
|
|
|
|
/**
|
|
* Construct a new PageHistory.
|
|
*
|
|
* @param Article $article
|
|
* @returns nothing
|
|
*/
|
|
function PageHistory($article) {
|
|
global $wgUser;
|
|
|
|
$this->mArticle =& $article;
|
|
$this->mTitle =& $article->mTitle;
|
|
$this->mNotificationTimestamp = NULL;
|
|
$this->mSkin = $wgUser->getSkin();
|
|
}
|
|
|
|
/**
|
|
* Print the history page for an article.
|
|
*
|
|
* @returns nothing
|
|
*/
|
|
function history() {
|
|
global $wgUser, $wgOut, $wgLang, $wgShowUpdatedMarker, $wgRequest,
|
|
$wgTitle, $wgUseValidation;
|
|
|
|
/*
|
|
* Allow client caching.
|
|
*/
|
|
|
|
if( $wgOut->checkLastModified( $this->mArticle->getTimestamp() ) )
|
|
/* Client cache fresh and headers sent, nothing more to do. */
|
|
return;
|
|
|
|
$fname = 'PageHistory::history';
|
|
wfProfileIn( $fname );
|
|
|
|
/*
|
|
* Setup page variables.
|
|
*/
|
|
$wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
|
|
$wgOut->setSubtitle( wfMsg( 'revhistory' ) );
|
|
$wgOut->setArticleFlag( false );
|
|
$wgOut->setArticleRelated( true );
|
|
$wgOut->setRobotpolicy( 'noindex,nofollow' );
|
|
|
|
/*
|
|
* Fail if article doesn't exist.
|
|
*/
|
|
$id = $this->mTitle->getArticleID();
|
|
if( $id == 0 ) {
|
|
$wgOut->addWikiText( 'nohistory' );
|
|
wfProfileOut( $fname );
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Extract limit, the number of revisions to show, and
|
|
* offset, the timestamp to begin at, from the URL.
|
|
*/
|
|
$limit = $wgRequest->getInt('limit', 50);
|
|
$offset = $wgRequest->getText('offset');
|
|
|
|
/* Offset must be an integral. */
|
|
if (!strlen($offset) || !preg_match("/^[0-9]+$/", $offset))
|
|
$offset = 0;
|
|
|
|
/*
|
|
* "go=last" means to jump to the last history page.
|
|
*/
|
|
if (($gowhere = $wgRequest->getText("go")) !== NULL) {
|
|
switch ($gowhere) {
|
|
case "first":
|
|
if (($lastid = $this->getLastOffsetForPaging($id, $limit)) === NULL)
|
|
break;
|
|
$gourl = $wgTitle->getLocalURL("action=history&limit={$limit}&offset={$lastid}");
|
|
break;
|
|
default:
|
|
$gourl = NULL;
|
|
}
|
|
|
|
if (!is_null($gourl)) {
|
|
$wgOut->redirect($gourl);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Fetch revisions.
|
|
*
|
|
* If the user clicked "previous", we retrieve the revisions backwards,
|
|
* then reverse them. This is to avoid needing to know the timestamp of
|
|
* previous revisions when generating the URL.
|
|
*/
|
|
$direction = $this->getDirection();
|
|
$revisions = $this->fetchRevisions($limit, $offset, $direction);
|
|
$navbar = $this->makeNavbar($revisions, $offset, $limit, $direction);
|
|
|
|
/*
|
|
* We fetch one more revision than needed to get the timestamp of the
|
|
* one after this page (and to know if it exists).
|
|
*
|
|
* linesonpage stores the actual number of lines.
|
|
*/
|
|
if (count($revisions) < $limit + 1)
|
|
$this->linesonpage = count($revisions);
|
|
else
|
|
$this->linesonpage = count($revisions) - 1;
|
|
|
|
/* Un-reverse revisions */
|
|
if ($direction == DIR_PREV)
|
|
$revisions = array_reverse($revisions);
|
|
|
|
/*
|
|
* Print the top navbar.
|
|
*/
|
|
$s = $navbar;
|
|
$s .= $this->beginHistoryList();
|
|
$counter = 1;
|
|
|
|
/*
|
|
* Print each revision, excluding the one-past-the-end, if any.
|
|
*/
|
|
foreach (array_slice($revisions, 0, $limit) as $i => $line) {
|
|
$first = !$i && $offset == 0;
|
|
$next = isset( $revisions[$i + 1] ) ? $revisions[$i + 1 ] : null;
|
|
$s .= $this->historyLine($line, $next, $counter, $this->getNotificationTimestamp(), $first);
|
|
}
|
|
|
|
/*
|
|
* End navbar.
|
|
*/
|
|
$s .= $this->endHistoryList();
|
|
$s .= $navbar;
|
|
|
|
/*
|
|
* Article validation line.
|
|
*/
|
|
if ($wgUseValidation)
|
|
$s .= "<p>" . Validation::link2statistics ( $this->mArticle ) . "</p>" ;
|
|
|
|
$wgOut->addHTML( $s );
|
|
wfProfileOut( $fname );
|
|
}
|
|
|
|
function beginHistoryList() {
|
|
global $wgTitle;
|
|
$this->lastdate = '';
|
|
$s = '<p>' . wfMsg( 'histlegend' ) . '</p>';
|
|
$s .= '<form action="' . $wgTitle->escapeLocalURL( '-' ) . '" method="get">';
|
|
$prefixedkey = htmlspecialchars($wgTitle->getPrefixedDbKey());
|
|
$s .= "<input type='hidden' name='title' value=\"{$prefixedkey}\" />\n";
|
|
$s .= $this->submitButton();
|
|
$s .= '<ul id="pagehistory">';
|
|
return $s;
|
|
}
|
|
|
|
function endHistoryList() {
|
|
$last = wfMsg( 'last' );
|
|
|
|
$s = '</ul>';
|
|
$s .= $this->submitButton( array( 'id' => 'historysubmit' ) );
|
|
$s .= '</form>';
|
|
return $s;
|
|
}
|
|
|
|
function submitButton( $bits = array() ) {
|
|
return ( $this->linesonpage > 0 )
|
|
? wfElement( 'input', array_merge( $bits,
|
|
array(
|
|
'class' => 'historysubmit',
|
|
'type' => 'submit',
|
|
'accesskey' => wfMsg( 'accesskey-compareselectedversions' ),
|
|
'title' => wfMsg( 'tooltip-compareselectedversions' ),
|
|
'value' => wfMsg( 'compareselectedversions' ),
|
|
) ) )
|
|
: '';
|
|
}
|
|
|
|
function historyLine( $row, $next, $counter = '', $notificationtimestamp = false, $latest = false ) {
|
|
global $wgLang, $wgContLang;
|
|
|
|
static $message;
|
|
if( !isset( $message ) ) {
|
|
foreach( explode( ' ', 'cur last selectolderversionfordiff selectnewerversionfordiff minoreditletter' ) as $msg ) {
|
|
$message[$msg] = wfMsg( $msg );
|
|
}
|
|
}
|
|
|
|
$link = $this->revLink( $row );
|
|
|
|
if ( 0 == $row->rev_user ) {
|
|
$contribsPage =& Title::makeTitle( NS_SPECIAL, 'Contributions' );
|
|
$ul = $this->mSkin->makeKnownLinkObj( $contribsPage,
|
|
htmlspecialchars( $row->rev_user_text ),
|
|
'target=' . urlencode( $row->rev_user_text ) );
|
|
} else {
|
|
$userPage =& Title::makeTitle( NS_USER, $row->rev_user_text );
|
|
$ul = $this->mSkin->makeLinkObj( $userPage , htmlspecialchars( $row->rev_user_text ) );
|
|
}
|
|
|
|
$s = '<li>';
|
|
if( $row->rev_deleted ) {
|
|
$s .= '<span class="deleted">';
|
|
}
|
|
$curlink = $this->curLink( $row, $latest );
|
|
$lastlink = $this->lastLink( $row, $next, $counter );
|
|
$arbitrary = $this->diffButtons( $row, $latest, $counter );
|
|
$s .= "({$curlink}) ({$lastlink}) $arbitrary {$link} <span class='user'>{$ul}</span>";
|
|
|
|
if( $row->rev_minor_edit ) {
|
|
$s .= ' ' . wfElement( 'span', array( 'class' => 'minor' ), $message['minoreditletter'] );
|
|
}
|
|
|
|
$s .= $this->mSkin->commentBlock( $row->rev_comment, $this->mTitle );
|
|
if ($this->getNotificationTimestamp() && ($row->rev_timestamp >= $this->getNotificationTimestamp())) {
|
|
$s .= wfMsg( 'updatedmarker' );
|
|
}
|
|
if( $row->rev_deleted ) {
|
|
$s .= "</span> " . htmlspecialchars( wfMsg( 'deletedrev' ) );
|
|
}
|
|
$s .= '</li>';
|
|
|
|
return $s;
|
|
}
|
|
|
|
function revLink( $row ) {
|
|
global $wgUser, $wgLang;
|
|
$date = $wgLang->timeanddate( $row->rev_timestamp, true );
|
|
if( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) {
|
|
return $date;
|
|
} else {
|
|
return $this->mSkin->makeKnownLinkObj(
|
|
$this->mTitle,
|
|
$date,
|
|
'oldid='.$row->rev_id );
|
|
}
|
|
}
|
|
|
|
function curLink( $row, $latest ) {
|
|
global $wgUser;
|
|
$cur = htmlspecialchars( wfMsg( 'cur' ) );
|
|
if( $latest
|
|
|| ( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) ) {
|
|
return $cur;
|
|
} else {
|
|
return $this->mSkin->makeKnownLinkObj(
|
|
$this->mTitle,
|
|
$cur,
|
|
'diff=0&oldid=' . $row->rev_id );
|
|
}
|
|
}
|
|
|
|
function lastLink( $row, $next, $counter ) {
|
|
global $wgUser;
|
|
$last = htmlspecialchars( wfMsg( 'last' ) );
|
|
if( is_null( $next )
|
|
|| ( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) ) {
|
|
return $last;
|
|
} else {
|
|
return $this->mSkin->makeKnownLinkObj(
|
|
$this->mTitle,
|
|
$last,
|
|
"diff={$row->rev_id}&oldid={$next->rev_id}",
|
|
'',
|
|
'',
|
|
' tabindex="'.$counter.'"' );
|
|
}
|
|
}
|
|
|
|
function diffButtons( $row, $latest, $counter ) {
|
|
global $wgUser;
|
|
if( $this->linesonpage > 1) {
|
|
$radio = array(
|
|
'type' => 'radio',
|
|
'value' => $row->rev_id,
|
|
'title' => wfMsg( 'selectolderversionfordiff' )
|
|
);
|
|
if( $row->rev_deleted && !$wgUser->isAllowed( 'undelete' ) ) {
|
|
$radio['disabled'] = 'disabled';
|
|
}
|
|
|
|
# XXX: move title texts to javascript
|
|
if ( $latest ) {
|
|
$first = wfElement( 'input', array_merge(
|
|
$radio,
|
|
array(
|
|
'style' => 'visibility:hidden',
|
|
'name' => 'oldid' ) ) );
|
|
$checkmark = array( 'checked' => 'checked' );
|
|
} else {
|
|
if( $counter == 2 ) {
|
|
$checkmark = array( 'checked' => 'checked' );
|
|
} else {
|
|
$checkmark = array();
|
|
}
|
|
$first = wfElement( 'input', array_merge(
|
|
$radio,
|
|
$checkmark,
|
|
array( 'name' => 'oldid' ) ) );
|
|
$checkmark = array();
|
|
}
|
|
$second = wfElement( 'input', array_merge(
|
|
$radio,
|
|
$checkmark,
|
|
array( 'name' => 'diff' ) ) );
|
|
return $first . $second;
|
|
} else {
|
|
return '';
|
|
}
|
|
}
|
|
|
|
function getLatestOffset($id) {
|
|
return $this->getExtremeOffset( $id, 'max' );
|
|
}
|
|
|
|
function getEarliestOffset($id) {
|
|
return $this->getExtremeOffset( $id, 'min' );
|
|
}
|
|
|
|
function getExtremeOffset( $id, $func ) {
|
|
$db =& wfGetDB(DB_SLAVE);
|
|
return $db->selectField( 'revision',
|
|
"$func(rev_timestamp)",
|
|
array( 'rev_page' => $id ),
|
|
'PageHistory::getExtremeOffset' );
|
|
}
|
|
|
|
function getLastOffsetForPaging( $id, $step = 50 ) {
|
|
$db =& wfGetDB(DB_SLAVE);
|
|
$revision = $db->tableName( 'revision' );
|
|
$sql = "SELECT rev_timestamp FROM $revision WHERE rev_page = $id " .
|
|
"ORDER BY rev_timestamp ASC LIMIT $step";
|
|
$res = $db->query( $sql, "PageHistory::getLastOffsetForPaging" );
|
|
$n = $db->numRows( $res );
|
|
|
|
$last = null;
|
|
while( $obj = $db->fetchObject( $res ) ) {
|
|
$last = $obj->rev_timestamp;
|
|
}
|
|
$db->freeResult( $res );
|
|
return $last;
|
|
}
|
|
|
|
function getDirection() {
|
|
global $wgRequest;
|
|
|
|
if ($wgRequest->getText("dir") == "prev")
|
|
return DIR_PREV;
|
|
else
|
|
return DIR_NEXT;
|
|
}
|
|
|
|
function fetchRevisions($limit, $offset, $direction) {
|
|
global $wgUser, $wgShowUpdatedMarker;
|
|
|
|
/* Check one extra row to see whether we need to show 'next' and diff links */
|
|
$limitplus = $limit + 1;
|
|
|
|
$namespace = $this->mTitle->getNamespace();
|
|
$title = $this->mTitle->getText();
|
|
$uid = $wgUser->getID();
|
|
$db =& wfGetDB( DB_SLAVE );
|
|
|
|
$use_index = $db->useIndexClause( 'page_timestamp' );
|
|
$revision = $db->tableName( 'revision' );
|
|
|
|
$limits = $offsets = "";
|
|
|
|
if ($direction == DIR_PREV)
|
|
list($dirs, $oper) = array("ASC", ">=");
|
|
else /* $direction = DIR_NEXT */
|
|
list($dirs, $oper) = array("DESC", "<=");
|
|
|
|
if ($offset)
|
|
$offsets .= " AND rev_timestamp $oper '$offset' ";
|
|
|
|
if ($limit)
|
|
$limits .= " LIMIT $limitplus ";
|
|
$page_id = $this->mTitle->getArticleID();
|
|
|
|
$sql = "SELECT rev_id,rev_user," .
|
|
"rev_comment,rev_user_text,rev_timestamp,rev_minor_edit,rev_deleted ".
|
|
"FROM $revision $use_index " .
|
|
"WHERE rev_page=$page_id " .
|
|
$offsets .
|
|
"ORDER BY rev_timestamp $dirs " .
|
|
$limits;
|
|
$res = $db->query($sql, "PageHistory::fetchRevisions");
|
|
|
|
$result = array();
|
|
while (($obj = $db->fetchObject($res)) != NULL)
|
|
$result[] = $obj;
|
|
wfdebug("limits=$limits offset=$offsets got=".count($result)."\n");
|
|
|
|
return $result;
|
|
}
|
|
|
|
function getNotificationTimestamp() {
|
|
global $wgUser, $wgShowUpdatedMarker;
|
|
|
|
if ($this->mNotificationTimestamp !== NULL)
|
|
return $this->mNotificationTimestamp;
|
|
|
|
if ($wgUser->getID() == 0 || !$wgShowUpdatedMarker)
|
|
return $this->mNotificationTimestamp = false;
|
|
|
|
$db =& wfGetDB(DB_SLAVE);
|
|
|
|
$this->mNotificationTimestamp = $db->selectField(
|
|
'watchlist',
|
|
'wl_notificationtimestamp',
|
|
array( 'wl_namespace' => $this->mTitle->getNamespace(),
|
|
'wl_title' => $this->mTitle->getDBkey(),
|
|
'wl_user' => $wgUser->getID()
|
|
),
|
|
"PageHistory::getNotficationTimestamp");
|
|
|
|
return $this->mNotificationTimestamp;
|
|
}
|
|
|
|
function makeNavbar($revisions, $offset, $limit, $direction) {
|
|
global $wgTitle, $wgLang;
|
|
|
|
$revisions = array_slice($revisions, 0, $limit);
|
|
|
|
$pageid = $this->mTitle->getArticleID();
|
|
$latestTimestamp = $this->getLatestOffset( $pageid );
|
|
$earliestTimestamp = $this->getEarliestOffset( $pageid );
|
|
|
|
/*
|
|
* When we're displaying previous revisions, we need to reverse
|
|
* the array, because it's queried in reverse order.
|
|
*/
|
|
if ($direction == DIR_PREV)
|
|
$revisions = array_reverse($revisions);
|
|
|
|
/*
|
|
* lowts is the timestamp of the first revision on this page.
|
|
* hights is the timestamp of the last revision.
|
|
*/
|
|
|
|
$lowts = $hights = 0;
|
|
|
|
if( count( $revisions ) ) {
|
|
$latestShown = $revisions[0]->rev_timestamp;
|
|
$earliestShown = $revisions[count($revisions) - 1]->rev_timestamp;
|
|
}
|
|
|
|
$firsturl = $wgTitle->escapeLocalURL("action=history&limit={$limit}&go=first");
|
|
$lasturl = $wgTitle->escapeLocalURL("action=history&limit={$limit}");
|
|
$firsttext = wfMsgHtml("histfirst");
|
|
$lasttext = wfMsgHtml("histlast");
|
|
|
|
$prevurl = $wgTitle->escapeLocalURL("action=history&dir=prev&offset={$latestShown}&limit={$limit}");
|
|
$nexturl = $wgTitle->escapeLocalURL("action=history&offset={$earliestShown}&limit={$limit}");
|
|
|
|
$urls = array();
|
|
foreach (array(20, 50, 100, 250, 500) as $num) {
|
|
$urls[] = "<a href=\"".$wgTitle->escapeLocalURL(
|
|
"action=history&offset={$offset}&limit={$num}")."\">".$wgLang->formatNum($num)."</a>";
|
|
}
|
|
|
|
$bits = implode($urls, ' | ');
|
|
|
|
wfDebug("latestShown=$latestShown latestTimestamp=$latestTimestamp\n");
|
|
if( $latestShown < $latestTimestamp ) {
|
|
$prevtext = "<a href=\"$prevurl\">".wfMsgHtml("prevn", $limit)."</a>";
|
|
$lasttext = "<a href=\"$lasturl\">$lasttext</a>";
|
|
} else {
|
|
$prevtext = wfMsgHtml("prevn", $limit);
|
|
}
|
|
|
|
wfDebug("earliestShown=$earliestShown earliestTimestamp=$earliestTimestamp\n");
|
|
if( $earliestShown > $earliestTimestamp ) {
|
|
$nexttext = "<a href=\"$nexturl\">".wfMsgHtml("nextn", $limit)."</a>";
|
|
$firsttext = "<a href=\"$firsturl\">$firsttext</a>";
|
|
} else {
|
|
$nexttext = wfMsgHtml("nextn", $limit);
|
|
}
|
|
|
|
$firstlast = "($lasttext | $firsttext)";
|
|
|
|
return "$firstlast " . wfMsgHtml("viewprevnext", $prevtext, $nexttext, $bits);
|
|
}
|
|
}
|
|
|
|
?>
|