/**
* Static function wrapping RSSParser to handle rendering of RSS elements
* @param $input String: text inside the tags.
* @param $args Array: value associative list of the element attributes and
* their values.
* @param $parser Parser
* @param $frame PPFrame parser context
*/
static function renderRss($input, $args, $parser, $frame)
{
global $wgRSSCacheAge, $wgRSSCacheCompare, $wgRSSNamespaces, $wgRSSAllowedFeeds;
if (is_array($wgRSSNamespaces) && count($wgRSSNamespaces)) {
$ns = $parser->getTitle()->getNamespace();
$checkNS = array_flip($wgRSSNamespaces);
if (!isset($checkNS[$ns])) {
return wfMsg('rss-ns-permission');
}
}
if (count($wgRSSAllowedFeeds) && !in_array($input, $wgRSSAllowedFeeds)) {
return wfMsg('rss-url-permission');
}
if (!Http::isValidURI($input)) {
return wfMsg('rss-invalid-url', htmlspecialchars($input));
}
if ($wgRSSCacheCompare) {
$timeout = $wgRSSCacheCompare;
} else {
$timeout = $wgRSSCacheAge;
}
$parser->getOutput()->updateCacheExpiry($timeout);
$rss = new RSSParser($input, $args);
$status = $rss->fetch();
# Check for errors.
if (!$status->isGood()) {
return wfMsg('rss-error', htmlspecialchars($input), $status->getWikiText());
}
if (!is_object($rss->rss) || !is_array($rss->rss->items)) {
return wfMsg('rss-empty', htmlspecialchars($input));
}
return $rss->renderFeed($parser, $frame);
}
