function rcOutputFeed($rows, $feedFormat, $limit, $hideminor, $lastmod)
{
global $messageMemc, $wgFeedCacheTimeout;
global $wgFeedClasses, $wgTitle, $wgSitename, $wgContLanguageCode;
if (!isset($wgFeedClasses[$feedFormat])) {
wfHttpError(500, "Internal Server Error", "Unsupported feed type.");
return false;
}
$timekey = wfMemcKey('rcfeed', $feedFormat, 'timestamp');
$key = wfMemcKey('rcfeed', $feedFormat, 'limit', $limit, 'minor', $hideminor);
$feedTitle = $wgSitename . ' - ' . wfMsgForContent('recentchanges') . ' [' . $wgContLanguageCode . ']';
$feed = new $wgFeedClasses[$feedFormat]($feedTitle, htmlspecialchars(wfMsgForContent('recentchanges-feed-description')), $wgTitle->getFullUrl());
//purge cache if requested
global $wgRequest, $wgUser;
$purge = $wgRequest->getVal('action') == 'purge';
if ($purge && $wgUser->isAllowed('purge')) {
$messageMemc->delete($timekey);
$messageMemc->delete($key);
}
/**
* Bumping around loading up diffs can be pretty slow, so where
* possible we want to cache the feed output so the next visitor
* gets it quick too.
*/
$cachedFeed = false;
if ($wgFeedCacheTimeout > 0 && ($feedLastmod = $messageMemc->get($timekey))) {
/**
* If the cached feed was rendered very recently, we may
* go ahead and use it even if there have been edits made
* since it was rendered. This keeps a swarm of requests
* from being too bad on a super-frequently edited wiki.
*/
if (time() - wfTimestamp(TS_UNIX, $feedLastmod) < $wgFeedCacheTimeout || wfTimestamp(TS_UNIX, $feedLastmod) > wfTimestamp(TS_UNIX, $lastmod)) {
wfDebug("RC: loading feed from cache ({$key}; {$feedLastmod}; {$lastmod})...\n");
$cachedFeed = $messageMemc->get($key);
} else {
wfDebug("RC: cached feed timestamp check failed ({$feedLastmod}; {$lastmod})\n");
}
}
if (is_string($cachedFeed)) {
wfDebug("RC: Outputting cached feed\n");
$feed->httpHeaders();
echo $cachedFeed;
} else {
wfDebug("RC: rendering new feed and caching it\n");
ob_start();
rcDoOutputFeed($rows, $feed);
$cachedFeed = ob_get_contents();
ob_end_flush();
$expire = 3600 * 24;
# One day
$messageMemc->set($key, $cachedFeed);
$messageMemc->set($timekey, wfTimestamp(TS_MW), $expire);
}
return true;
}
/**
* Entrypoint
* @param string $par parent page we will look at
*/
function wfSpecialRecentchangeslinked($par = NULL)
{
global $wgUser, $wgOut, $wgLang, $wgContLang, $wgRequest, $wgTitle;
$fname = 'wfSpecialRecentchangeslinked';
$days = $wgRequest->getInt('days');
$target = isset($par) ? $par : $wgRequest->getText('target');
$hideminor = $wgRequest->getBool('hideminor') ? 1 : 0;
$wgOut->setPagetitle(wfMsg('recentchangeslinked'));
$sk = $wgUser->getSkin();
if (is_null($target)) {
$wgOut->errorpage('notargettitle', 'notargettext');
return;
}
$nt = Title::newFromURL($target);
if (!$nt) {
$wgOut->errorpage('notargettitle', 'notargettext');
return;
}
$id = $nt->getArticleId();
$wgOut->setPageTitle(wfMsg('recentchangeslinked-title', $nt->getPrefixedText()));
$wgOut->setSyndicated();
$wgOut->setFeedAppendQuery("target=" . urlencode($target));
if (!$days) {
$days = (int) $wgUser->getOption('rcdays', 7);
}
list($limit, ) = wfCheckLimits(100, 'rclimit');
$dbr = wfGetDB(DB_SLAVE, 'recentchangeslinked');
$cutoff = $dbr->timestamp(time() - $days * 86400);
$hideminor = $hideminor ? 1 : 0;
if ($hideminor) {
$mlink = $sk->makeKnownLink($wgContLang->specialPage('Recentchangeslinked'), wfMsg('show'), 'target=' . htmlspecialchars($nt->getPrefixedURL()) . "&days={$days}&limit={$limit}&hideminor=0");
} else {
$mlink = $sk->makeKnownLink($wgContLang->specialPage("Recentchangeslinked"), wfMsg("hide"), "target=" . htmlspecialchars($nt->getPrefixedURL()) . "&days={$days}&limit={$limit}&hideminor=1");
}
if ($hideminor) {
$cmq = 'AND rc_minor=0';
} else {
$cmq = '';
}
list($recentchanges, $categorylinks, $pagelinks, $watchlist) = $dbr->tableNamesN('recentchanges', 'categorylinks', 'pagelinks', "watchlist");
$uid = $wgUser->getID();
$GROUPBY = "\n\tGROUP BY rc_cur_id,rc_namespace,rc_title,\n\t\trc_user,rc_comment,rc_user_text,rc_timestamp,rc_minor,rc_deleted,\n\t\trc_new, rc_id, rc_this_oldid, rc_last_oldid, rc_bot, rc_patrolled, rc_type, rc_old_len, rc_new_len\n" . ($uid ? ",wl_user" : "") . "\n\t\tORDER BY rc_timestamp DESC\n\tLIMIT {$limit}";
// If target is a Category, use categorylinks and invert from and to
if ($nt->getNamespace() == NS_CATEGORY) {
$catkey = $dbr->addQuotes($nt->getDBkey());
$sql = "SELECT /* wfSpecialRecentchangeslinked */\n\t\t\t\trc_id,\n\t\t\t\trc_cur_id,\n\t\t\t\trc_namespace,\n\t\t\t\trc_title,\n\t\t\t\trc_this_oldid,\n\t\t\t\trc_last_oldid,\n\t\t\t\trc_user,\n\t\t\t\trc_comment,\n\t\t\t\trc_user_text,\n\t\t\t\trc_timestamp,\n\t\t\t\trc_minor,\n\t\t\t\trc_bot,\n\t\t\t\trc_new,\n\t\t\t\trc_patrolled,\n\t\t\t\trc_type,\n\t\t\t\trc_old_len,\n\t\t\t\trc_new_len,\n\t\t\t\trc_deleted\n" . ($uid ? ",wl_user" : "") . "\n\t FROM {$categorylinks}, {$recentchanges}\n" . ($uid ? "LEFT OUTER JOIN {$watchlist} ON wl_user={$uid} AND wl_title=rc_title AND wl_namespace=rc_namespace " : "") . "\n\t WHERE rc_timestamp > '{$cutoff}'\n\t {$cmq}\n\t AND cl_from=rc_cur_id\n\t AND cl_to={$catkey}\n{$GROUPBY}\n ";
} else {
$sql = "SELECT /* wfSpecialRecentchangeslinked */\n\t\t\trc_id,\n\t\t\trc_cur_id,\n\t\t\trc_namespace,\n\t\t\trc_title,\n\t\t\trc_user,\n\t\t\trc_comment,\n\t\t\trc_user_text,\n\t\t\trc_this_oldid,\n\t\t\trc_last_oldid,\n\t\t\trc_timestamp,\n\t\t\trc_minor,\n\t\t\trc_bot,\n\t\t\trc_new,\n\t\t\trc_patrolled,\n\t\t\trc_type,\n\t\t\trc_old_len,\n\t\t\trc_new_len,\n\t\t\trc_deleted\n" . ($uid ? ",wl_user" : "") . "\n FROM {$pagelinks}, {$recentchanges}\n" . ($uid ? " LEFT OUTER JOIN {$watchlist} ON wl_user={$uid} AND wl_title=rc_title AND wl_namespace=rc_namespace " : "") . "\n WHERE rc_timestamp > '{$cutoff}'\n\t{$cmq}\n AND pl_namespace=rc_namespace\n AND pl_title=rc_title\n AND pl_from={$id}\n{$GROUPBY}\n";
}
$res = $dbr->query($sql, $fname);
$wgOut->addHTML("< " . $sk->makeLinkObj($nt, "", "redirect=no") . "<br />\n");
$note = wfMsgExt("rcnote", array('parseinline'), $limit, $days, $wgLang->timeAndDate(wfTimestampNow(), true));
$wgOut->addHTML("<hr />\n{$note}\n<br />");
$note = rcDayLimitlinks($days, $limit, "Recentchangeslinked", "target=" . $nt->getPrefixedURL() . "&hideminor={$hideminor}", false, $mlink);
$wgOut->addHTML($note . "\n");
$list = ChangesList::newFromUser($wgUser);
$s = $list->beginRecentChangesList();
$count = $dbr->numRows($res);
$rchanges = array();
if ($count) {
$counter = 1;
while ($limit) {
if (0 == $count) {
break;
}
$obj = $dbr->fetchObject($res);
--$count;
$rc = RecentChange::newFromRow($obj);
$rc->counter = $counter++;
$s .= $list->recentChangesLine($rc, !empty($obj->wl_user));
--$limit;
$rchanges[] = $obj;
}
} else {
$wgOut->addWikiMsg('recentchangeslinked-noresult');
}
$s .= $list->endRecentChangesList();
$dbr->freeResult($res);
$wgOut->addHTML($s);
global $wgSitename, $wgFeedClasses, $wgContLanguageCode;
$feedFormat = $wgRequest->getVal('feed');
if ($feedFormat && isset($wgFeedClasses[$feedFormat])) {
$feedTitle = $wgSitename . ' - ' . wfMsgForContent('recentchangeslinked-title', $nt->getPrefixedText()) . ' [' . $wgContLanguageCode . ']';
$feed = new $wgFeedClasses[$feedFormat]($feedTitle, htmlspecialchars(wfMsgForContent('recentchangeslinked')), $wgTitle->getFullUrl());
require_once "SpecialRecentchanges.php";
$wgOut->disable();
rcDoOutputFeed($rchanges, $feed);
}
}