/**
* Parse OAuth WWW-Authenticate header and either add them to an existing
* message or create a new message.
*
* @param msg
* @param resp
* @return the updated message.
*/
private function parseAuthHeader(OAuthRequest $msg = null, RemoteContentRequest $resp)
{
if ($msg == null) {
$msg = OAuthRequest::from_request();
}
$authHeaders = $resp->getResponseHeader("WWW-Authenticate");
if ($authHeaders != null) {
$msg->set_parameters(OAuthUtil::decodeAuthorization($authHeaders));
}
return $msg;
}
