CIMRestService::messageUserGet

static function messageUserGet($arParams, $offset, CRestServer $server)
{
	$arParams = array_change_key_case($arParams, CASE_UPPER);

	if (
		$server->getAuthType() != BitrixRestOAuthAuth::AUTH_TYPE
		&& !self::isDebugEnabled()
	)
	{
		throw new BitrixRestRestException("Access for this method allowed only by OAuth authorization.", "WRONG_AUTH_TYPE", CRestServer::STATUS_WRONG_REQUEST);
	}

	global $USER;
	$userId = $USER->GetID();
	if ($userId <= 0)
	{
		throw new BitrixRestRestException("User ID can't be empty", "ID_EMPTY", CRestServer::STATUS_WRONG_REQUEST);
	}

	if (isset($arParams['FIRST_ID']))
	{
		$options['FIRST_ID'] = intval($arParams['FIRST_ID']);
	}
	else
	{
		$options['LAST_ID'] = isset($arParams['LAST_ID']) && intval($arParams['LAST_ID']) > 0? intval($arParams['LAST_ID']): 0;
	}

	$options['LIMIT'] = isset($arParams['LIMIT'])? (intval($arParams['LIMIT']) > 500? 500: intval($arParams['LIMIT'])): 50;
	$options['JSON'] = 'Y';

	$forUser = $userId;
	if (isset($arParams['USER_ID']) && intval($arParams['USER_ID']) > 0 && $arParams['USER_ID'] != $userId)
	{
		if (
			(
				!BitrixImUser::getInstance($arParams['USER_ID'])->isActive() && !BitrixImUser::getInstance($arParams['USER_ID'])->isExtranet()
				|| BitrixImUser::getInstance($arParams['USER_ID'])->isConnector()
			)
			&&
			(
				$USER->IsAdmin()
				|| BitrixMainLoader::includeModule('bitrix24') && CBitrix24::IsPortalAdmin($userId)
			)
		)
		{
			$forUser = intval($arParams['USER_ID']);
			$options['SKIP_MESSAGE'] = 'Y';
		}
		else
		{
			throw new BitrixRestRestException("You don't have access to this user", "ACCESS_ERROR", CRestServer::STATUS_WRONG_REQUEST);
		}
	}

	return BitrixImUser::getMessages($forUser, $options);
}