public function authenticate($key)
{
if (!is_string($key)) {
throw new LudoDBInvalidArgumentsException("Invalid session key " . $key);
}
$session = new Session($key);
if ($session->getId() && !$session->expired()) {
$user = $session->getUser();
return array('id' => $user->getId(), 'user_access' => $user->getUserAccess());
}
throw new LudoDBUnauthorizedException("Invalid session key");
}