protected function PuSHSubscriber::request in Feeds 6

Same name and namespace in other branches

1. 7.2 libraries/PuSHSubscriber.inc \PuSHSubscriber::request()
2. 7 libraries/PuSHSubscriber.inc \PuSHSubscriber::request()

Issue a subscribe or unsubcribe request to a PubsubHubbub hub.

@todo Make concurrency safe.

Parameters

$hub: The URL of the hub's subscription endpoint.

$topic: The topic URL of the feed to subscribe to.

$mode: 'subscribe' or 'unsubscribe'.

$callback_url: The subscriber's notifications callback URL.

Compare to http://pubsubhubbub.googlecode.com/svn/trunk/pubsubhubbub-core-0.2.html#...

2 calls to PuSHSubscriber::request()

PuSHSubscriber::subscribe in libraries/PuSHSubscriber.inc

Subscribe to a given URL. Attempt to retrieve 'hub' and 'self' links from document at $url and issue a subscription request to the hub.

PuSHSubscriber::unsubscribe in libraries/PuSHSubscriber.inc

@todo Unsubscribe from a hub. @todo Make sure we unsubscribe with the correct topic URL as it can differ from the initial subscription URL.

File

libraries/PuSHSubscriber.inc, line 246

Pubsubhubbub subscriber library.

Class

PuSHSubscriber

PubSubHubbub subscriber.

Code

protected function request($hub, $topic, $mode, $callback_url) {
  $secret = hash('sha1', uniqid(rand(), TRUE));
  $post_fields = array(
    'hub.callback' => $callback_url,
    'hub.mode' => $mode,
    'hub.topic' => $topic,
    'hub.verify' => 'sync',
    'hub.lease_seconds' => '',
    // Permanent subscription.
    'hub.secret' => $secret,
    'hub.verify_token' => md5(session_id() . rand()),
  );
  $sub = new $this->subscription_class($this->domain, $this->subscriber_id, $hub, $topic, $secret, $mode, $post_fields);
  $sub
    ->save();

  // Issue subscription request.
  $request = curl_init($hub);
  curl_setopt($request, CURLOPT_POST, TRUE);
  curl_setopt($request, CURLOPT_POSTFIELDS, $post_fields);
  curl_setopt($request, CURLOPT_RETURNTRANSFER, TRUE);
  curl_exec($request);
  $code = curl_getinfo($request, CURLINFO_HTTP_CODE);
  if (in_array($code, array(
    202,
    204,
  ))) {
    $this
      ->log("Positive response to \"{$mode}\" request ({$code}).");
  }
  else {
    $sub->status = $mode . ' failed';
    $sub
      ->save();
    $this
      ->log("Error issuing \"{$mode}\" request to {$hub} ({$code}).", 'error');
  }
  curl_close($request);
}