68 lines
2.1 KiB
PHP
68 lines
2.1 KiB
PHP
<?php
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/**
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* Starts a new TPV transaction and returns the params.
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*/
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class Transaction extends Vn\Web\JsonRequest {
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const PARAMS = ['amount'];
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function run($db) {
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$amount =(int) $_REQUEST['amount'];
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$companyId = empty($_REQUEST['company']) ? NULL : $_REQUEST['company'];
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$row = $db->getObject('CALL tpvTransactionStart(#, #)',
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[$amount, $companyId]);
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if (!isset($row))
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throw new Exception('Transaction error');
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$transactionId = str_pad($row->transactionId, 12, '0', STR_PAD_LEFT);
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$merchantUrl = $row->merchantUrl ? $row->merchantUrl : '';
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$urlOk = empty($_REQUEST['urlOk']) ? '' :
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str_replace('_transactionId_', $transactionId, $_REQUEST['urlOk']);
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$urlKo = empty($_REQUEST['urlKo']) ? '' :
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str_replace('_transactionId_', $transactionId, $_REQUEST['urlKo']);
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$params = [
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'Ds_Merchant_Amount' => $amount
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,'Ds_Merchant_Order' => $transactionId
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,'Ds_Merchant_MerchantCode' => $row->merchant
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,'Ds_Merchant_Currency' => $row->currency
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,'Ds_Merchant_TransactionType' => $row->transactionType
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,'Ds_Merchant_Terminal' => $row->terminal
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,'Ds_Merchant_MerchantURL' => $merchantUrl
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,'Ds_Merchant_UrlOK' => $urlOk
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,'Ds_Merchant_UrlKO' => $urlKo
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];
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$encodedParams = base64_encode(json_encode($params));
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$key = base64_decode($row->secretKey);
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$bytes = [0, 0, 0, 0, 0, 0, 0, 0];
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$iv = implode(array_map('chr', $bytes));
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$paddedData = $transactionId;
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if (strlen($paddedData) % 8) {
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$paddedData = str_pad($paddedData,
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strlen($paddedData) + 8 - strlen($paddedData) % 8, "\0");
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}
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$encryptedData = openssl_encrypt($paddedData,
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'des-ede3-cbc', $key, OPENSSL_RAW_DATA | OPENSSL_NO_PADDING , $iv);
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$signature = base64_encode(hash_hmac('sha256', $encodedParams, $encryptedData, TRUE));
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$url = $row->url;
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$postValues = [
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'Ds_SignatureVersion' => 'HMAC_SHA256_V1'
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,'Ds_MerchantParameters' => $encodedParams
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,'Ds_Signature' => $signature
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];
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return [
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'url' => $url
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,'postValues' => $postValues
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];
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}
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}
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