get_rate.php

См. документацию.

<?php
use Bitrix\Main;
use Bitrix\Main\Localization\Loc;
use Bitrix\Main\Loader;
use Bitrix\Currency;
 
const STOP_STATISTICS = true;
const BX_SECURITY_SHOW_MESSAGE = true;
 
require_once($_SERVER['DOCUMENT_ROOT'].'/bitrix/modules/main/include/prolog_admin_before.php');
 
$result = [
    'STATUS' => '',
    'MESSAGE' => '',
    'RATE_CNT' => '',
    'RATE' => '',
];
 
if (!check_bitrix_sessid())
{
    $result['STATUS'] = 'ERROR';
    $result['MESSAGE'] = Loc::getMessage('BX_CURRENCY_GET_RATE_ERR_SESSION');
}
else
{
    if (!Loader::includeModule('currency'))
    {
        $result['STATUS'] = 'ERROR';
        $result['MESSAGE'] = Loc::getMessage('BX_CURRENCY_GET_RATE_ERR_MODULE_ABSENT');
    }
    else
    {
        $baseCurrency = Currency\CurrencyManager::getBaseCurrency();
        $baseCurrency = '';
        $date = '';
        $currency = '';
        if (isset($_REQUEST['BASE_CURRENCY']))
            $baseCurrency = (string)$_REQUEST['BASE_CURRENCY'];
        if ($baseCurrency == '')
            $baseCurrency = Currency\CurrencyManager::getBaseCurrency();
        if (isset($_REQUEST['DATE_RATE']))
            $date = (string)$_REQUEST['DATE_RATE'];
        if (isset($_REQUEST['CURRENCY']))
            $currency = (string)$_REQUEST['CURRENCY'];
 
        if ($baseCurrency == '')
        {
            $result['STATUS'] = 'ERROR';
            $result['MESSAGE'] = Loc::getMessage('BX_CURRENCY_GET_RATE_ERR_BASE_CURRENCY_ABSENT');
        }
        elseif ($date == '' || !$DB->IsDate($date))
        {
            $result['STATUS'] = 'ERROR';
            $result['MESSAGE'] = Loc::getMessage('BX_CURRENCY_GET_RATE_ERR_DATE_RATE');
        }
        elseif ($currency == '')
        {
            $result['STATUS'] = 'ERROR';
            $result['MESSAGE'] = Loc::getMessage('BX_CURRENCY_GET_RATE_ERR_CURRENCY');
        }
        else
        {
            $url = '';
            switch ($baseCurrency)
            {
                case 'UAH':
                    $url = 'https://bank.gov.ua/NBUStatService/v1/statdirectory/exchange/?date='.$DB->FormatDate($date, CLang::GetDateFormat('SHORT', LANGUAGE_ID), 'YMD');
                    break;
                case 'BYR':
                case 'BYN':
                    $url = 'https://www.nbrb.by/Services/XmlExRates.aspx?ondate='.$DB->FormatDate($date, CLang::GetDateFormat('SHORT', LANGUAGE_ID), 'Y-M-D');
                    break;
                case 'RUB':
                case 'RUR':
                    $url = 'https://www.cbr.ru/scripts/XML_daily.asp?date_req='.$DB->FormatDate($date, CLang::GetDateFormat('SHORT', LANGUAGE_ID), 'D.M.Y');
                    break;
            }
            $http = new Main\Web\HttpClient();
            $http->setRedirect(true);
            $data = $http->get($url);
 
            $charset = 'windows-1251';
            $matches = [];
            if (preg_match("/<"."\?XML[^>]{1,}encoding=[\"']([^>\"']{1,})[\"'][^>]{0,}\?".">/i", $data, $matches))
            {
                $charset = trim($matches[1]);
            }
            $data = preg_replace("#<!DOCTYPE[^>]+?>#i", '', $data);
            $data = preg_replace("#<"."\\?XML[^>]+?\\?".">#i", '', $data);
            $data = Main\Text\Encoding::convertEncoding($data, $charset, SITE_CHARSET);
 
            $objXML = new CDataXML();
            $res = $objXML->LoadString($data);
            if ($res !== false)
                $data = $objXML->GetArray();
            else
                $data = false;
 
            if (!empty($data) && is_array($data))
            {
                switch ($baseCurrency)
                {
                    case 'UAH':
                        if (!empty($data["exchange"]["#"]['currency']) && is_array($data["exchange"]["#"]['currency']))
                        {
                            $currencyList = $data['exchange']['#']['currency'];
                            foreach ($currencyList as $currencyRate)
                            {
                                if ($currencyRate['#']['cc'][0]['#'] == $currency)
                                {
 
                                    $result['STATUS'] = 'OK';
                                    $result['RATE_CNT'] = 1;
                                    $result['RATE'] = (float)str_replace(",", ".", $currencyRate['#']['rate'][0]['#']);
                                    break;
                                }
                            }
                            unset($currencyRate, $currencyList);
                        }
                        break;
                    case 'BYR':
                    case 'BYN':
                        if (!empty($data["DailyExRates"]["#"]["Currency"]) && is_array($data["DailyExRates"]["#"]["Currency"]))
                        {
                            $currencyList = $data['DailyExRates']['#']['Currency'];
                            foreach ($currencyList as $currencyRate)
                            {
                                if ($currencyRate["#"]["CharCode"][0]["#"] == $currency)
                                {
                                    $result['STATUS'] = 'OK';
                                    $result['RATE_CNT'] = (int)$currencyRate["#"]["Scale"][0]["#"];
                                    $result['RATE'] = (float)str_replace(",", ".", $currencyRate["#"]["Rate"][0]["#"]);
                                    break;
                                }
                            }
                            unset($currencyRate, $currencyList);
                        }
                        break;
                    case 'RUB':
                    case 'RUR':
                        if (!empty($data["ValCurs"]["#"]["Valute"]) && is_array($data["ValCurs"]["#"]["Valute"]))
                        {
                            $currencyList = $data["ValCurs"]["#"]["Valute"];
                            foreach ($currencyList as $currencyRate)
                            {
                                if ($currencyRate["#"]["CharCode"][0]["#"] == $currency)
                                {
                                    $result['STATUS'] = 'OK';
                                    $result['RATE_CNT'] = (int)$currencyRate["#"]["Nominal"][0]["#"];
                                    $result['RATE'] = (float)str_replace(",", ".", $currencyRate["#"]["Value"][0]["#"]);
                                    break;
                                }
                            }
                            unset($currencyRate, $currencyList);
                        }
                        break;
                }
            }
        }
        if ($result['STATUS'] != 'OK')
        {
            $result['STATUS'] = 'ERROR';
            $result['MESSAGE'] = Loc::getMessage('BX_CURRENCY_GET_RATE_ERR_RESULT_ABSENT');
        }
    }
}
$APPLICATION->RestartBuffer();
header('Content-Type: application/json');
echo Main\Web\Json::encode($result);
require($_SERVER['DOCUMENT_ROOT'].'/bitrix/modules/main/include/epilog_admin_after.php');