handler.php

См. документацию.

<?php
 
namespace Sale\Handlers\PaySystem;
 
use Bitrix\Main\Error;
use Bitrix\Main\Localization\Loc;
use Bitrix\Main\Request;
use Bitrix\Main\Type\DateTime;
use Bitrix\Sale\Payment;
use Bitrix\Sale\PaySystem;
use Bitrix\Sale\PaySystem\ServiceResult;
use Bitrix\Sale\PriceMaths;
 
Loc::loadMessages(__FILE__);
 
class WebMoneyHandler extends PaySystem\ServiceHandler
{
    static public function getIndicativeFields()
    {
        return array('BX_HANDLER' => 'WEBMONEY');
    }

    static protected function isMyResponseExtended(Request $request, $paySystemId)
    {
        $id = $request->get('BX_PAYSYSTEM_CODE');
        return $id == $paySystemId;
    }

    public function initiatePay(Payment $payment, Request $request = null)
    {
        $extraParams = array(
            'URL' => $this->getUrl($payment, 'pay'),
            'ENCODING' => $this->service->getField('ENCODING'),
            'BX_PAYSYSTEM_CODE' => $this->service->getField('ID'),
            'WEBMONEY_SUCCESS_URL' => $this->getSuccessUrl($payment),
            'WEBMONEY_FAIL_URL' => $this->getFailUrl($payment),
        );
 
        $this->setExtraParams($extraParams);
 
        return $this->showTemplate($payment, 'template');
    }

    public function processRequest(Payment $payment, Request $request)
    {
        $serviceResult = new PaySystem\ServiceResult();
 
        if ((int)$request->get('LMI_PREREQUEST') == 1)
        {
            if (
                !$this->checkSum($payment, $request) ||
                $request->get('LMI_PAYEE_PURSE') != $this->getBusinessValue($payment, 'WEBMONEY_SHOP_ACCT')
            )
            {
                $serviceResult->addError(new Error('Incorrect sum or WEBMONEY_SHOP_ACCT'));
            }
        }
        else
        {
            if ($this->checkHash($payment, $request))
            {
                $psDescription = '';
 
                if ($request->get("LMI_MODE") != 0)
                    $psDescription .= Loc::getMessage('SALE_HPS_WEBMONEY_TEST');
 
                $psDescription .= Loc::getMessage('SALE_HPS_WEBMONEY_PAYEE_PURSE', array('#PAYEE_PURSE#' => $request->get("LMI_PAYEE_PURSE")))."; ";
                $psDescription .= Loc::getMessage('SALE_HPS_WEBMONEY_INVS_NO', array('#INVS_NO#' => $request->get("LMI_SYS_INVS_NO")))."; ";
                $psDescription .= Loc::getMessage('SALE_HPS_WEBMONEY_TRANS_NO', array('#TRANS_NO#' => $request->get("LMI_SYS_TRANS_NO")))."; ";
                $psDescription .= Loc::getMessage('SALE_HPS_WEBMONEY_TRANS_DATE', array('#TRANS_DATE#' => $request->get("LMI_SYS_TRANS_DATE")))."; ";
 
                $psMessage = "";
                if ($request->get("LMI_PAYER_PURSE") !== null)
                    $psMessage .= Loc::getMessage('SALE_HPS_WEBMONEY_PAYER_PURSE', array('#PAYER_PURSE#' => $request->get("LMI_PAYER_PURSE")))."; ";
 
                if ($request->get("LMI_PAYER_WM") !== null)
                    $psMessage .= Loc::getMessage('SALE_HPS_WEBMONEY_PAYER_WM', array('#PAYER_WM#' => $request->get("LMI_PAYER_WM")))."; ";
 
                if ($request->get("LMI_PAYMER_NUMBER") !== null)
                    $psMessage .= Loc::getMessage('SALE_HPS_WEBMONEY_PAYMER_NUMBER', array('#PAYMER_NUMBER#' => $request->get("LMI_PAYMER_NUMBER")))."; ";
 
                if ($request->get("LMI_PAYMER_EMAIL") !== null)
                    $psMessage .= Loc::getMessage('SALE_HPS_WEBMONEY_PAYMER_EMAIL', array('#PAYMER_EMAIL#' => $request->get("LMI_PAYMER_EMAIL")))."; ";
 
                if ($request->get("LMI_TELEPAT_PHONENUMBER") !== null)
                    $psMessage .= Loc::getMessage('SALE_HPS_WEBMONEY_TELEPAT_PHONENUMBER', array('#TELEPAT_PHONENUMBER#' => $request->get("LMI_TELEPAT_PHONENUMBER")))."; ";
 
                if ($request->get("LMI_TELEPAT_ORDERID") !== null)
                    $psMessage .= Loc::getMessage('SALE_HPS_WEBMONEY_TELEPAT_ORDERID', array('#TELEPAT_ORDERID#' => $request->get("LMI_TELEPAT_ORDERID")));
 
                $psFields = array(
                    "PS_STATUS" => "Y",
                    "PS_STATUS_CODE" => "-",
                    "PS_STATUS_DESCRIPTION" => $psDescription,
                    "PS_STATUS_MESSAGE" => $psMessage,
                    "PS_SUM" => $request->get('LMI_PAYMENT_AMOUNT'),
                    "PS_CURRENCY" => $payment->getField('CURRENCY'),
                    "PS_RESPONSE_DATE" => new DateTime()
                );
 
                if ($this->checkSum($payment, $request)
                    && $this->getBusinessValue($payment, 'WEBMONEY_SHOP_ACCT') == $request->get("LMI_PAYEE_PURSE")
                    && !$payment->isPaid()
                    && $this->getBusinessValue($payment, 'PS_CHANGE_STATUS_PAY') == "Y"
                    )
                {
                    $serviceResult->setOperationType(PaySystem\ServiceResult::MONEY_COMING);
                    $serviceResult->setPsData($psFields);
                }
                else
                {
                    $serviceResult->addError(new Error('Incorrect payment sum or payment flag'));
                }
            }
            else
            {
                $serviceResult->addError(new Error('Incorrect payment hash'));
            }
        }
 
        return $serviceResult;
    }

    public function getPaymentIdFromRequest(Request $request)
    {
        return $request->get('LMI_PAYMENT_NO');
    }

    protected function isTestMode(Payment $payment = null)
    {
        return $this->getBusinessValue($payment, 'PS_IS_TEST');
    }

    protected function getUrlList()
    {
        return array(
            'pay' => array(
                self::ACTIVE_URL => 'https://merchant.webmoney.ru/lmi/payment.asp'
            )
        );
    }

    protected function checkSum(Payment $payment, Request $request)
    {
        $paymentShouldPay = round($this->getBusinessValue($payment, 'PAYMENT_SHOULD_PAY'), 2);
        $lmiPaymentAmount = round($request->get('LMI_PAYMENT_AMOUNT'), 2);
 
        return $paymentShouldPay == $lmiPaymentAmount;
    }

    protected function checkHash(Payment $payment, Request $request)
    {
        $algorithm = $this->getBusinessValue($payment, 'WEBMONEY_HASH_ALGO');
 
        $string = $request->get("LMI_PAYEE_PURSE").$request->get("LMI_PAYMENT_AMOUNT").$request->get("LMI_PAYMENT_NO").$request->get("LMI_MODE").$request->get("LMI_SYS_INVS_NO").$request->get("LMI_SYS_TRANS_NO").$request->get("LMI_SYS_TRANS_DATE").$this->getBusinessValue($payment, 'WEBMONEY_CNST_SECRET_KEY').$request->get("LMI_PAYER_PURSE").$request->get("LMI_PAYER_WM");
 
        $hash = hash($algorithm, $string);
 
        return mb_strtoupper($hash) == mb_strtoupper($request->get('LMI_HASH'));
    }

    public function getCurrencyList()
    {
        return array('RUB', 'USD', 'EUR', 'UAH');
    }

    public function sendResponse(ServiceResult $result, Request $request)
    {
        global $APPLICATION;
 
        if ($result->isSuccess() && (int)$request->get('LMI_PREREQUEST') == 1)
        {
            $APPLICATION->RestartBuffer();
 
            echo 'YES';
            die();
        }
    }

    private function getSuccessUrl(Payment $payment)
    {
        return $this->getBusinessValue($payment, 'WEBMONEY_SUCCESS_URL') ?: $this->service->getContext()->getUrl();
    }

    private function getFailUrl(Payment $payment)
    {
        return $this->getBusinessValue($payment, 'WEBMONEY_FAIL_URL') ?: $this->service->getContext()->getUrl();
    }
}