From db90dfcbbc406b50381f17a72f24095fee91bb09 Mon Sep 17 00:00:00 2001 From: ArthurHoaro Date: Tue, 2 Aug 2016 11:55:49 +0200 Subject: Move PubSubHubbub code as a default plugin --- plugins/pubsubhubbub/pubsubhubbub.php | 101 ++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 plugins/pubsubhubbub/pubsubhubbub.php (limited to 'plugins/pubsubhubbub/pubsubhubbub.php') diff --git a/plugins/pubsubhubbub/pubsubhubbub.php b/plugins/pubsubhubbub/pubsubhubbub.php new file mode 100644 index 00000000..03b6757b --- /dev/null +++ b/plugins/pubsubhubbub/pubsubhubbub.php @@ -0,0 +1,101 @@ +get('plugins.PUBSUBHUB_URL'); + if (empty($hub)) { + // Default hub. + $conf->set('plugins.PUBSUBHUB_URL', 'https://pubsubhubbub.appspot.com/'); + } +} + + +/** + * Render feed hook. + * Adds the hub URL in ATOM and RSS feed. + * + * @param array $data Template data. + * @param ConfigManager $conf instance. + * + * @return array updated template data. + */ +function hook_pubsubhubbub_render_feed($data, $conf) +{ + $feedType = $data['_PAGE_'] == Router::$PAGE_FEED_RSS ? FeedBuilder::$FEED_RSS : FeedBuilder::$FEED_ATOM; + $template = file_get_contents(PluginManager::$PLUGINS_PATH . '/pubsubhubbub/hub.'. $feedType .'.xml'); + $data['feed_plugins_header'][] = sprintf($template, $conf->get('plugins.PUBSUBHUB_URL')); + + return $data; +} + +/** + * Save link hook. + * Publish to the hub when a link is saved. + * + * @param array $data Template data. + * @param ConfigManager $conf instance. + * + * @return array unaltered data. + */ +function hook_pubsubhubbub_save_link($data, $conf) +{ + $feeds = array( + index_url($_SERVER) .'?do=atom', + index_url($_SERVER) .'?do=rss', + ); + + $httpPost = function_exists('curl_version') ? false : 'nocurl_http_post'; + try { + $p = new Publisher($conf->get('plugins.PUBSUBHUB_URL')); + $p->publish_update($feeds, $httpPost); + } catch (Exception $e) { + error_log('Could not publish to PubSubHubbub: ' . $e->getMessage()); + } + + return $data; +} + +/** + * Http function used to post to the hub endpoint without cURL extension. + * + * @param string $url Hub endpoint. + * @param string $postString String to POST. + * + * @return bool + * + * @throws Exception An error occurred. + */ +function nocurl_http_post($url, $postString) { + $params = array('http' => array( + 'method' => 'POST', + 'content' => $postString, + 'user_agent' => 'PubSubHubbub-Publisher-PHP/1.0', + )); + + $context = stream_context_create($params); + $fp = @fopen($url, 'rb', false, $context); + if (!$fp) { + throw new Exception('Could not post to '. $url); + } + $response = @stream_get_contents($fp); + if ($response === false) { + throw new Exception('Bad response from the hub '. $url); + } + return $response; +} -- cgit v1.2.3