RestService::validateRequest

static function validateRequest($params, CRestServer $server): bool
{
	if ($server->getAuthType() !== RestSessionAuthAuth::AUTH_TYPE)
	{
		throw new RestException(
			'Access for this method not allowed with non session authorization.',
			'WRONG_AUTH_TYPE',
			CRestServer::STATUS_FORBIDDEN
		);
	}

	if(
		!Loader::includeModule('im')
		|| !Loader::includeModule('imbot')
	)
	{
		throw new RestException(
			'Necessary modules are missing',
			'WRONG_REQUEST',
			CRestServer::STATUS_WRONG_REQUEST
		);
	}

	$classSupport = self::detectSupportBot();
	if (empty($classSupport) || $classSupport::getBotId() <= 0)
	{
		throw new RestException(
			'Support bot has not been installed',
			'WRONG_REQUEST',
			CRestServer::STATUS_WRONG_REQUEST
		);
	}

	return true;
}