function rsscloud_send_post_notifications($rss2_url = false)
{
if ($rss2_url === false) {
$rss2_url = get_bloginfo('rss2_url');
if (defined('RSSCLOUD_FEED_URL')) {
$rss2_url = RSSCLOUD_FEED_URL;
}
}
do_action('rsscloud_feed_notifications', $rss2_url);
$notify = rsscloud_get_hub_notifications();
if (!is_array($notify)) {
$notify = array();
}
$need_update = false;
foreach ($notify[$rss2_url] as $notify_url => $n) {
if ($n['status'] != 'active') {
continue;
}
if ($n['protocol'] == 'http-post') {
$url = parse_url($notify_url);
$port = 80;
if (!empty($url['port'])) {
$port = $url['port'];
}
$result = wp_remote_post($notify_url, array('method' => 'POST', 'timeout' => RSSCLOUD_HTTP_TIMEOUT, 'user-agent' => RSSCLOUD_USER_AGENT, 'port' => $port, 'body' => array('url' => $rss2_url)));
do_action('rsscloud_send_notification');
if (!is_wp_error($result)) {
$status_code = (int) $result['response']['code'];
}
if (is_wp_error($result) || ($status_code < 200 || $status_code > 299)) {
do_action('rsscloud_notify_failure');
$notify[$rss2_url][$notify_url]['failure_count']++;
if ($notify[$rss2_url][$notify_url]['failure_count'] > RSSCLOUD_MAX_FAILURES) {
do_action('rsscloud_suspend_notification_url');
$notify[$rss2_url][$notify_url]['status'] = 'suspended';
}
$need_update = true;
} elseif ($notify[$rss2_url][$notify_url]['failure_count'] > 0) {
do_action('rsscloud_reset_failure_count');
$notify[$rss2_url][$notify_url]['failure_count'] = 0;
$need_update = true;
}
}
}
// foreach
if ($need_update) {
rsscloud_update_hub_notifications($notify);
}
}
function rsscloud_hub_process_notification_request()
{
// Get the current set of notifications
$notify = rsscloud_get_hub_notifications();
if (empty($notify)) {
$notify = array();
}
// Must provide at least one URL to get notifications about
if (empty($_POST['url1'])) {
rsscloud_notify_result('false', 'No feed for url1.');
}
// Only support http-post
$protocol = 'http-post';
if (!empty($_POST['protocol']) && strtolower($_POST['protocol']) !== 'http-post') {
do_action('rsscloud_protocol_not_post');
rsscloud_notify_result('false', 'Only http-post notifications are supported at this time.');
}
// Assume port 80
$port = 80;
if (!empty($_POST['port'])) {
$port = (int) $_POST['port'];
}
// Path is required
if (empty($_POST['path'])) {
rsscloud_notify_result('false', 'No path provided.');
}
$path = str_replace('@', '', $_POST['path']);
if ($path[0] != '/') {
$path = '/' . $path;
}
// Figure out what the blog and notification URLs are
$rss2_url = get_bloginfo('rss2_url');
if (defined('RSSCLOUD_FEED_URL')) {
$rss2_url = RSSCLOUD_FEED_URL;
}
$notify_url = $_SERVER['REMOTE_ADDR'] . ':' . $port . $path;
if (!empty($_POST['domain'])) {
$domain = str_replace('@', '', $_POST['domain']);
$notify_url = $domain . ':' . $port . $path;
$challenge = rsscloud_generate_challenge();
$result = wp_remote_get($notify_url . '?url=' . esc_url($_POST['url1']) . '&challenge=' . $challenge, array('method' => 'GET', 'timeout' => RSSCLOUD_HTTP_TIMEOUT, 'user-agent' => RSSCLOUD_USER_AGENT, 'port' => $port));
} else {
$result = wp_remote_post($notify_url, array('method' => 'POST', 'timeout' => RSSCLOUD_HTTP_TIMEOUT, 'user-agent' => RSSCLOUD_USER_AGENT, 'port' => $port, 'body' => array('url' => $_POST['url1'])));
}
if (isset($result->errors['http_request_failed'][0])) {
rsscloud_notify_result('false', 'Error testing notification URL : ' . $result->errors['http_request_failed'][0]);
}
$status_code = (int) $result['response']['code'];
if ($status_code < 200 || $status_code > 299) {
rsscloud_notify_result('false', 'Error testing notification URL. The URL returned HTTP status code: ' . $result['response']['code'] . ' - ' . $result['response']['message'] . '.');
}
// challenge must match for domain requests
if (!empty($_POST['domain'])) {
if (empty($result['body']) || $result['body'] != $challenge) {
rsscloud_notify_result('false', 'The response body did not match the challenge string');
}
}
// Passed all the tests, add this to the list of notifications for
foreach ($_POST as $key => $feed_url) {
if (!preg_match('|url\\d+|', $key)) {
continue;
}
// Only allow requests for the RSS2 posts feed
if ($feed_url != $rss2_url) {
rsscloud_notify_result('false', "You can only request updates for {$rss2_url}");
}
$notify[$feed_url][$notify_url]['protocol'] = $protocol;
$notify[$feed_url][$notify_url]['status'] = 'active';
$notify[$feed_url][$notify_url]['failure_count'] = 0;
}
do_action('rsscloud_add_notify_subscription');
rsscloud_update_hub_notifications($notify);
rsscloud_notify_result('true', 'Registration successful.');
}