Bitrix. Sale. Купить в 1 клик.

buy1click.php

<?
if (!CModule::IncludeModule('sale')
				|| !CModule::IncludeModule('iblock')
				|| !CModule::IncludeModule('catalog')
				|| !CModule::IncludeModule('currency'))
				die();

			global $USER, $APPLICATION;
			$work = true;

			// проверки
			if (empty($_POST['user__name'])) {
				$data = array(
					'title' => 'Вы не ввели ФИО',
				);
				$work = false;
			}
			if (empty($_POST['user__email'])) {
				$data = array(
					'title' => 'Вы не ввели EMAIL',
				);
				$work = false;
			}
			if (empty($_POST['user__phone'])) {
				$data = array(
					'title' => 'Вы не ввели Телефон',
				);
				$work = false;
			}
			if (empty($_POST['user__product'])) {
				$data = array(
					'title' => 'Ошибка. Попробуйте позже',
				);
				$work = false;
			}
			if (empty($_POST['user__city'])) {
				$_POST['user__city'] = 2355;
			}

			if ( $work )  {

				$register_new_user = false;
				$send_letter = true;

				// авторизация и регистрация пользователя 
				if (!$USER->IsAuthorized()) {

					$dbUser = CUser::GetList(($by = 'ID'), ($order = 'ASC'), array('=EMAIL' => $_POST['user__email'])); // ишем пользователя
					if ($dbUser->SelectedRowsCount() == 0) {
						$login = $_POST['user__email'];
						$register_new_user = true;
					} elseif ($dbUser->SelectedRowsCount() == 1) {
						$ar_user = $dbUser->Fetch();
						$registeredUserID = $ar_user['ID'];
					} 

					if ($register_new_user) {
						$use_captcha = COption::GetOptionString('main', 'captcha_registration', 'N');
						if ($use_captcha == 'Y')
							COption::SetOptionString('main', 'captcha_registration', 'N');
						$userPassword = randString(10);
						$userFIO = parseFIOString($_POST['user__name']);
						$newUser = $USER->Register($login, $userFIO[0], $userFIO[1], $userPassword, $userPassword, $login);
						if ($use_captcha == 'Y')
							COption::SetOptionString('main', 'captcha_registration', 'Y');
						if ($newUser['TYPE'] == 'ERROR') {
							die(getResultJsonArray(GetMessage('1CB_USER_REGISTER_FAIL'), 'N', $newUser['MESSAGE']));
						} else {
							$registeredUserID = $USER->GetID();
							if (!empty($_POST['user__phone']))
								$userUpd = $USER->Update($registeredUserID, array('PERSONAL_PHONE' => $_POST['user__phone']));
							$USER->Logout();
						}
					}
				} else {
					$registeredUserID = $USER->GetID();
				}

				// Данные по умолчанию
				$deliveryId = 3; // доставка
				$paymentId = 2; // оплата
				$personType = 1; // тип плательшика
				$currency = "RUB"; // валюта
				$buyMode = "ONE";

				$basketUserID = CSaleBasket::GetBasketUserID(); // id корзины пользователя

				//данные заказа
				$newOrder = array(
					'LID' => SITE_ID,
					'PERSON_TYPE_ID' => $personType,
					'PAYED' => 'N',
					'CURRENCY' => $currency,
					'USER_ID' => $registeredUserID
				);

				if ($buyMode == 'ALL') {
		
					$db_basket_items = CSaleBasket::GetList(
						array('SORT' => 'DESC'),
						array('FUSER_ID' => $basketUserID, 'LID' => SITE_ID, 'ORDER_ID' => 'NULL', 'DELAY' => 'N')
					);
					
					$newOrder['COMMENTS'] = "Buy in one click from the basket";
				}
				else {
					//чистим корзину
					CSaleBasket::DeleteAll($basketUserID);
					//Добавляем товар в корзину
					$addID = Add2BasketByProductID($_POST['user__product'], 1);
					
					//Получаем данные товара
					$db_basket_items = CSaleBasket::GetList(
						array('SORT' => 'DESC'),
						array('FUSER_ID' => $basketUserID, 'LID' => SITE_ID, 'ID' => $addID, 'ORDER_ID' => 'NULL', 'DELAY' => 'N')
					);
					
					$newOrder['COMMENTS'] = "Buy in one click from the item card";
				}

				$summ = 0;
				while ($ar_tmp = $db_basket_items->Fetch())
					$basket[] = $ar_tmp;

				$arUserResult = array (
					1 => htmlspecialchars($_POST['user__name']),
					2 => htmlspecialchars($_POST['user__phone']),
					3 => htmlspecialchars($_POST['user__email']),
					4 => htmlspecialchars($_POST['user__city']),
				);

				//добавляем заказ
				$arOrderDat = CSaleOrder::DoCalculateOrder(
					SITE_ID,
					$registeredUserID,
					$basket,
					$personType,
					$arUserResult,
					$deliveryId,
					$paymentId,
					array(),
					$arErrors,
					$arWarnings
				);

				$arOrderDat['USER_ID'] = $newOrder['USER_ID'];
				$newOrderID = CSaleOrder::DoSaveOrder($arOrderDat, $newOrder, 0, $arResult["ERROR"]);

        if ($newOrderID) {
					$data = array(
						'title' => 'Заказ под номером '. $newOrderID. ' успешно создан.',
						//'message' => $registeredUserID,
						'status' => 'ok',
						'close' => false,
						'hidden' => true
					);
				}
				else {
					$strError = '';
					if($ex = $APPLICATION->GetException())
						$strError = $ex->GetString();

					$data = array(
						'title' => $strError,
					);
				}
     	}
			echo json_encode($data);
?>

Устарел.