/**
* This method is handles the response that will be invoked by the
* notification or request sent by the payment processor.
*hex string from paymentexpress is passed to this function as hex string. Code based on googleIPN
* mac_key is only passed if the processor is pxaccess as it is used for decryption
* $dps_method is either pxaccess or pxpay
*/
static function main($dps_method, $rawPostData, $dps_url, $dps_user, $dps_key, $mac_key)
{
$config =& CRM_Core_Config::singleton();
define('RESPONSE_HANDLER_LOG_FILE', $config->uploadDir . 'CiviCRM.PaymentExpress.log');
//Setup the log file
if (!($message_log = fopen(RESPONSE_HANDLER_LOG_FILE, "a"))) {
error_func("Cannot open " . RESPONSE_HANDLER_LOG_FILE . " file.\n", 0);
exit(1);
}
if ($dps_method == "pxpay") {
require_once 'CRM/Core/Payment/PaymentExpressUtils.php';
$processResponse = _valueXml(array('PxPayUserId' => $dps_user, 'PxPayKey' => $dps_key, 'Response' => $_GET['result']));
$processResponse = _valueXml('ProcessResponse', $processResponse);
fwrite($message_log, sprintf("\n\r%s:- %s\n", date("D M j G:i:s T Y"), $processResponse));
// Send the XML-formatted validation request to DPS so that we can receive a decrypted XML response which contains the transaction results
$curl = _initCURL($processResponse, $dps_url);
fwrite($message_log, sprintf("\n\r%s:- %s\n", date("D M j G:i:s T Y"), $curl));
$success = false;
if ($response = curl_exec($curl)) {
fwrite($message_log, sprintf("\n\r%s:- %s\n", date("D M j G:i:s T Y"), $response));
curl_close($curl);
// Assign the returned XML values to variables
$valid = _xmlAttribute($response, 'valid');
$success = _xmlElement($response, 'Success');
$txnId = _xmlElement($response, 'TxnId');
$responseText = _xmlElement($response, 'ResponseText');
$authCode = _xmlElement($response, 'AuthCode');
$DPStxnRef = _xmlElement($response, 'DpsTxnRef');
$qfKey = _xmlElement($response, "TxnData1");
$privateData = _xmlElement($response, "TxnData2");
$component = _xmlElement($response, "TxnData3");
$amount = _xmlElement($response, "AmountSettlement");
$merchantReference = _xmlElement($response, "MerchantReference");
} else {
// calling DPS failed
CRM_Core_Error::fatal(ts('Unable to establish connection to the payment gateway to verify transaction response.'));
exit;
}
} elseif ($dps_method == "pxaccess") {
require_once 'PaymentExpress/pxaccess.php';
global $pxaccess;
$pxaccess = new PxAccess($dps_url, $dps_user, $dps_key, $mac_key);
#getResponse method in PxAccess object returns PxPayResponse object
#which encapsulates all the response data
$rsp = $pxaccess->getResponse($rawPostData);
$qfKey = $rsp->getTxnData1();
$privateData = $rsp->getTxnData2();
$component = $rsp->getTxnData3();
$success = $rsp->getSuccess();
$authCode = $rsp->getAuthCode();
$DPStxnRef = $rsp->getDpsTxnRef();
$amount = $rsp->getAmountSettlement();
$MerchantReference = $rsp->getMerchantReference();
}
$privateData = $privateData ? self::stringToArray($privateData) : '';
// Private Data consists of : a=contactID, b=contributionID,c=contributionTypeID,d=invoiceID,e=membershipID,f=participantID,g=eventID
$privateData['contactID'] = $privateData['a'];
$privateData['contributionID'] = $privateData['b'];
$privateData['contributionTypeID'] = $privateData['c'];
$privateData['invoiceID'] = $privateData['d'];
if ($component == "event") {
$privateData['participantID'] = $privateData['f'];
$privateData['eventID'] = $privateData['g'];
} else {
if ($component == "contribute") {
if (count($privateData) == 5) {
$privateData["membershipID"] = $privateData['e'];
}
}
}
$transactionReference = $authCode . "-" . $DPStxnRef;
list($mode, $component, $paymentProcessorID, $duplicateTransaction) = self::getContext($privateData, $transactionReference);
$mode = $mode ? 'test' : 'live';
require_once 'CRM/Core/BAO/PaymentProcessor.php';
$paymentProcessor = CRM_Core_BAO_PaymentProcessor::getPayment($paymentProcessorID, $mode);
$ipn =& self::singleton($mode, $component, $paymentProcessor);
//Check status and take appropriate action
if ($success == 1) {
if ($duplicateTransaction == 0) {
$ipn->newOrderNotify($success, $privateData, $component, $amount, $transactionReference);
}
if ($component == "event") {
$finalURL = CRM_Utils_System::url('civicrm/event/register', "_qf_ThankYou_display=1&qfKey={$params['qfKey']}", false, null, false);
} elseif ($component == "contribute") {
$finalURL = CRM_Utils_System::url('civicrm/contribute/transact', "_qf_ThankYou_display=1&qfKey={$params['qfKey']}", false, null, false);
}
CRM_Utils_System::redirect($finalURL);
} else {
if ($component == "event") {
$finalURL = CRM_Utils_System::url('civicrm/event/register', "_qf_Register_display=1&cancel=1&qfKey={$params['qfKey']}", false, null, false);
} elseif ($component == "contribute") {
$finalURL = CRM_Utils_System::url('civicrm/contribute/transact', "_qf_Main_display=1&cancel=1&qfKey={$params['qfKey']}", false, null, false);
}
CRM_Utils_System::redirect($finalURL);
}
}
/**
* Main transaction function
*
* @param array $params name value pair of contribution data
*
* @return void
* @access public
*
*/
function doTransferCheckout(&$params, $component)
{
$component = strtolower($component);
$config = CRM_Core_Config::singleton();
if ($component != 'contribute' && $component != 'event') {
CRM_Core_Error::fatal(ts('Component is invalid'));
}
$url = $config->userFrameworkResourceURL . "extern/pxIPN.php";
if ($component == 'event') {
$cancelURL = CRM_Utils_System::url('civicrm/event/register', "_qf_Confirm_display=true&qfKey={$params['qfKey']}", false, null, false);
} else {
if ($component == 'contribute') {
$cancelURL = CRM_Utils_System::url('civicrm/contribute/transact', "_qf_Confirm_display=true&qfKey={$params['qfKey']}", false, null, false);
}
}
/*
* Build the private data string to pass to DPS, which they will give back to us with the
*
* transaction result. We are building this as a comma-separated list so as to avoid long URLs.
*
* Parameters passed: a=contactID, b=contributionID,c=contributionTypeID,d=invoiceID,e=membershipID,f=participantID,g=eventID
*/
$privateData = "a={$params['contactID']},b={$params['contributionID']},c={$params['contributionTypeID']},d={$params['invoiceID']}";
if ($component == 'event') {
$privateData .= ",f={$params['participantID']},g={$params['eventID']}";
$merchantRef = "event registration";
} elseif ($component == 'contribute') {
$merchantRef = "Charitable Contribution";
$membershipID = CRM_Utils_Array::value('membershipID', $params);
if ($membershipID) {
$privateData .= ",e={$membershipID}";
}
}
// Allow further manipulation of params via custom hooks
CRM_Utils_Hook::alterPaymentProcessorParams($this, $params, $privateData);
/*
* determine whether method is pxaccess or pxpay by whether signature (mac key) is defined
*/
if (empty($this->_paymentProcessor['signature'])) {
/*
* Processor is pxpay
*
* This contains the XML/Curl functions we'll need to generate the XML request
*/
require_once 'CRM/Core/Payment/PaymentExpressUtils.php';
// Build a valid XML string to pass to DPS
$generateRequest = _valueXml(array('PxPayUserId' => $this->_paymentProcessor['user_name'], 'PxPayKey' => $this->_paymentProcessor['password'], 'AmountInput' => str_replace(",", "", number_format($params['amount'], 2)), 'CurrencyInput' => $params['currencyID'], 'MerchantReference' => $merchantRef, 'TxnData1' => $params['qfKey'], 'TxnData2' => $privateData, 'TxnData3' => $component, 'TxnType' => 'Purchase', 'TxnId' => '', 'UrlFail' => $url, 'UrlSuccess' => $url));
$generateRequest = _valueXml('GenerateRequest', $generateRequest);
// Get the special validated URL back from DPS by sending them the XML we've generated
$curl = _initCURL($generateRequest, $this->_paymentProcessor['url_site']);
$success = false;
if ($response = curl_exec($curl)) {
curl_close($curl);
$valid = _xmlAttribute($response, 'valid');
if (1 == $valid) {
// the request was validated, so we'll get the URL and redirect to it
$uri = _xmlElement($response, 'URI');
CRM_Utils_System::redirect($uri);
} else {
// redisplay confirmation page
CRM_Utils_System::redirect($cancelURL);
}
} else {
// calling DPS failed
CRM_Core_Error::fatal(ts('Unable to establish connection to the payment gateway.'));
}
} else {
$processortype = "pxaccess";
require_once 'PaymentExpress/pxaccess.inc.php';
$PxAccess_Url = $this->_paymentProcessor['url_site'];
// URL
$PxAccess_Userid = $this->_paymentProcessor['user_name'];
// User ID
$PxAccess_Key = $this->_paymentProcessor['password'];
// Your DES Key from DPS
$Mac_Key = $this->_paymentProcessor['signature'];
// Your MAC key from DPS
$pxaccess = new PxAccess($PxAccess_Url, $PxAccess_Userid, $PxAccess_Key, $Mac_Key);
$request = new PxPayRequest();
$request->setAmountInput(number_format($params['amount'], 2));
$request->setTxnData1($params['qfKey']);
$request->setTxnData2($privateData);
$request->setTxnData3($component);
$request->setTxnType("Purchase");
$request->setInputCurrency($params['currencyID']);
$request->setMerchantReference($merchantRef);
$request->setUrlFail($url);
$request->setUrlSuccess($url);
$request_string = $pxaccess->makeRequest($request);
CRM_Utils_System::redirect($request_string);
}
}