/**
* Algorithm for choosing auth strategy
*
* @todo Move validation and error handling into separate class
* @return AbstractAuthStrategy
*/
public function create()
{
$post = $this->getPost();
$cookies = $this->getCookies();
$auth = null;
switch (true) {
case isset($post['ln'], $post['pw']):
$auth = new LoginFormStrategy($post['ln'], $post['pw'], new User());
$post['ln'] || $auth->setError($auth::ERR_NOT_VALID_LOGIN);
$post['pw'] || $auth->setError($auth::ERR_NOT_VALID_PASSWORD);
break;
case isset($cookies['id'], $cookies['pw']):
$auth = new CookieStrategy($cookies['id'], $cookies['pw'], new User());
$cookies['id'] || $auth->setError($auth::ERR_NOT_VALID_UID);
$cookies['pw'] || $auth->setError($auth::ERR_NOT_VALID_HASH);
break;
default:
$auth = new GuestStrategy(new User());
}
return $auth;
}
