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<?php
class PowerPressWebSub
{
const DEFAULT_HUB = "https://pubsubhubbub.appspot.com";
private $hub;
private $wp_remote_options = false;
/**
* Websub constructor.
* @param string $hub URL to the hub to use, defaults to <code>$DEFAULT_HUB</code>
*/
public function __construct($hub = self::DEFAULT_HUB){
$this->hub = $hub;
$this->wp_remote_options['user_agent'] = 'Blubrry PowerPress/'.POWERPRESS_VERSION;
$this->wp_remote_options['httpversion'] = '1.1';
$this->wp_remote_options['headers'] = array('Content-Type'=>'application/x-www-form-urlencoded');
$this->wp_remote_options['body'] = array('hub.mode'=>'publish');
$this->wp_remote_options['timeout'] = 3; // Do not allow this to block more than 3 seconds
}
/**
* Publishes update to the hub
* @param string $feedUrl URL of feed to update
* @throws Exception Throws exception if HTTP response is not 20x and returns HTTP body
*/
public function publish($feedUrl) {
$this->wp_remote_options['body']['hub.url'] = $feedUrl;
$response = wp_remote_post($this->hub, $this->wp_remote_options);
if (is_wp_error($response)) // Handle system level errors
{
if ($response->get_error_message())
throw new Exception($response->get_error_message());
else
throw new Exception("HTTP error response " . $response->get_error_code());
return false;
}
if ($response['response']['code'] > 299) {
if (!empty($response['body'])) // Handle service level errors
throw new Exception($response['body']);
else
throw new Exception("HTTP response " . $response['response']['code']);
return false;
}
return true;
}
/**
* @return string
*/
public function getHub()
{
return $this->hub;
}
}