handler.php

См. документацию.

<?php
 
namespace Sale\Handlers\PaySystem;
 
use Bitrix\Sale\Payment;
use Bitrix\Sale\PaySystem;
 
PaySystem\Manager::includeHandler('SberbankOnline');

class AlfaBankHandler extends SberbankOnlineHandler
{
    protected static function getDescriptionCodesMap(): array
    {
        return [
            'LOGIN' => 'ALFABANK_LOGIN',
            'PASSWORD' => 'ALFABANK_PASSWORD',
            'MERCHANT' => 'ALFABANK_MERCHANT',
            'SECRET_KEY' => 'ALFABANK_SECRET_KEY',
            'RETURN_SUCCESS_URL' => 'ALFABANK_RETURN_SUCCESS_URL',
            'RETURN_FAIL_URL' => 'ALFABANK_RETURN_FAIL_URL',
            'ORDER_DESCRIPTION' => 'ALFABANK_ORDER_DESCRIPTION',
            'TEST_MODE' => 'ALFABANK_TEST_MODE',
        ];
    }

    public function getCurrencyList(): array
    {
        return ['BYN'];
    }

    protected function getUrl(Payment $payment = null, $action): string
    {
        $url = parent::getUrl($payment, $action);
        if ($payment !== null && $action === 'formUrl')
        {
            $url = str_replace('#merchant#', $this->getBusinessValue($payment, static::getDescriptionCode('MERCHANT')), $url);
        }
 
        return $url;
    }

    protected function getUrlList()
    {
        $testUrl = 'https://abby.rbsuat.com/payment/';
        $activeUrl = 'https://ecom.alfabank.by/payment/';
 
        return [
            'register.do' => [
                self::TEST_URL => $testUrl.'rest/register.do',
                self::ACTIVE_URL => $activeUrl.'rest/register.do',
            ],
            'getOrderStatusExtended.do' => [
                self::TEST_URL => $testUrl.'rest/getOrderStatusExtended.do',
                self::ACTIVE_URL => $activeUrl.'rest/getOrderStatusExtended.do',
            ],
            'refund.do' => [
                self::TEST_URL => $testUrl.'rest/refund.do',
                self::ACTIVE_URL => $activeUrl.'rest/refund.do',
            ],
            'formUrl' => [
                self::TEST_URL => $testUrl.'merchants/#merchant#/payment_ru.html?mdOrder=',
                self::ACTIVE_URL => $activeUrl.'merchants/#merchant#/payment_ru.html?mdOrder=',
            ],
        ];
    }
}