/**
* Fetch APNS Messages
*
* This gets called automatically by _pushMessage. This will check with APNS for any invalid tokens and disable them from receiving further notifications.
*
* @param sting $development Which SSL to connect to, Sandbox or Production
* @access private
*/
private function _checkFeedback()
{
$ctx = stream_context_create();
stream_context_set_option($ctx, 'ssl', 'local_cert', $this->__certificate);
stream_context_set_option($ctx, 'ssl', 'verify_peer', false);
$feedback_url = $this->isProduction() ? $this->__feedback_url : $this->__feedback_development_url;
$fp = stream_socket_client($feedback_url, $error, $errorString, 60, STREAM_CLIENT_CONNECT | STREAM_CLIENT_PERSISTENT, $ctx);
if (!$fp) {
throw new Exception('Unable to connect to get feedback from Apple');
}
while ($devcon = fread($fp, 38)) {
$arr = unpack("H*", $devcon);
$rawhex = trim(implode("", $arr));
$token = substr($rawhex, 12, 64);
if (!empty($token)) {
$device = new Push_Model_Iphone_Device();
$device->findByToken($token);
if ($device->getId()) {
$device->unregister();
}
}
}
fclose($fp);
}
