UserPermissions::isExtranetUser

protected function isExtranetUser(): bool
{
	if ($this->isExtranet === null)
	{
		$this->isExtranet = false;
		if (
			Loader::includeModule('intranet')
			&& Loader::includeModule('extranet')
			&& !CExtranet::IsIntranetUser(SITE_ID, $this->getUserId())
		)
		{
			$this->isExtranet = true;
		}
	}

	return $this->isExtranet;
}