mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/RSS
synced 2024-11-12 01:09:31 +00:00
105 lines
2.9 KiB
PHP
105 lines
2.9 KiB
PHP
<?php
|
|
|
|
namespace MediaWiki\Extension\RSS;
|
|
|
|
use MediaWiki\Hook\ParserFirstCallInitHook;
|
|
use MediaWiki\Parser\Parser;
|
|
use MediaWiki\Status\Status;
|
|
use MWHttpRequest;
|
|
use PPFrame;
|
|
|
|
class Hooks implements ParserFirstCallInitHook {
|
|
|
|
/**
|
|
* Tell the parser how to handle <rss> elements
|
|
* @param Parser $parser Parser Object
|
|
*/
|
|
public function onParserFirstCallInit( $parser ) {
|
|
// Install parser hook for <rss> tags
|
|
$parser->setHook( 'rss', [ __CLASS__, 'renderRss' ] );
|
|
}
|
|
|
|
/**
|
|
* Static function wrapping RSSParser to handle rendering of RSS elements
|
|
* @param string $input text inside the tags.
|
|
* @param array $args value associative list of the element attributes and
|
|
* their values.
|
|
* @param Parser $parser
|
|
* @param PPFrame $frame parser context
|
|
* @return string
|
|
*/
|
|
public static function renderRss( $input, array $args, Parser $parser, PPFrame $frame ) {
|
|
global $wgRSSCacheAge, $wgRSSCacheCompare, $wgRSSNamespaces,
|
|
$wgRSSUrlWhitelist, $wgRSSAllowedFeeds;
|
|
|
|
if ( is_array( $wgRSSNamespaces ) && count( $wgRSSNamespaces ) ) {
|
|
$nsUsed = $parser->getTitle()->getNamespace();
|
|
$authorizedNamespace = array_flip( $wgRSSNamespaces );
|
|
|
|
if ( !isset( $authorizedNamespace[$nsUsed] ) ) {
|
|
return Utils::getErrorHtml( 'rss-ns-permission' );
|
|
}
|
|
}
|
|
|
|
if ( isset( $wgRSSAllowedFeeds ) ) {
|
|
return Utils::getErrorHtml( 'rss-deprecated-wgrssallowedfeeds-found' );
|
|
}
|
|
|
|
# disallow because there is no whitelist at all or an empty whitelist
|
|
|
|
if ( !isset( $wgRSSUrlWhitelist )
|
|
|| !is_array( $wgRSSUrlWhitelist )
|
|
|| ( count( $wgRSSUrlWhitelist ) === 0 )
|
|
) {
|
|
return Utils::getErrorHtml( 'rss-empty-allow-list',
|
|
$input
|
|
);
|
|
}
|
|
|
|
# disallow the feed url because the url is not allowed; or
|
|
# disallow because the wildcard joker is not present to allow any feed url
|
|
# which can be dangerous
|
|
|
|
if ( !( in_array( $input, $wgRSSUrlWhitelist ) )
|
|
&& !( in_array( "*", $wgRSSUrlWhitelist ) ) ) {
|
|
$listOfAllowed = $parser->getTargetLanguage()->listToText( $wgRSSUrlWhitelist );
|
|
$numberAllowed = $parser->getTargetLanguage()->formatNum( count( $wgRSSUrlWhitelist ) );
|
|
|
|
return Utils::getErrorHtml( 'rss-url-is-not-allowed',
|
|
[ $input, $listOfAllowed, $numberAllowed ]
|
|
);
|
|
|
|
}
|
|
|
|
if ( !MWHttpRequest::isValidURI( $input ) ) {
|
|
return Utils::getErrorHtml( '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 wfMessage(
|
|
'rss-error', htmlspecialchars( $input ), Status::wrap( $status )->getWikitext()
|
|
)->escaped();
|
|
}
|
|
|
|
if ( !is_object( $rss->rss ) || !is_array( $rss->rss->items ) ) {
|
|
return Utils::getErrorHtml( 'rss-empty', htmlspecialchars( $input ) );
|
|
}
|
|
|
|
return $rss->renderFeed( $parser, $frame );
|
|
}
|
|
|
|
}
|