public TransactionResult HandleCallBack(OrderPaymentRequest orderRequest, FormCollection collection)
{
TransactionResult transactionResult = new TransactionResult();
string response = ValidatePaymentNotification(collection);
if (response == "VERIFIED")
{
string sAmountPaid = collection["mc_gross"];
string transactionId = collection["txn_id"];
Decimal amountPaid = 0;
Decimal.TryParse(sAmountPaid, out amountPaid);
if (orderRequest.Total == amountPaid)
{
transactionResult.PaymentToken = transactionId;
transactionResult.Amount = amountPaid;
transactionResult.PaymentMerchant = "PayPal";
transactionResult.PaymentOk = true;
}
else
{
transactionResult.PaymentToken = transactionId;
transactionResult.Amount = amountPaid;
transactionResult.PaymentMerchant = "PayPal";
transactionResult.PaymentOk = false;
}
}
return transactionResult;
}
public PaymentPostData GeneratePostDataFor(OrderPaymentRequest orderRequest)
{
PaymentPostData paymentPostData = new PaymentPostData();
NameValueCollection postDataAndValue = new NameValueCollection();
paymentPostData.PostDataAndValue = postDataAndValue;
// When a real PayPal account is used, the form should be sent to
// https://www.paypal.com/cgi-bin/webscr.
// For testing use "https://www.sandbox.paypal.com/cgi-bin/webscr"
paymentPostData.PaymentPostToUrl = ApplicationSettingsFactory.GetApplicationSettings().PayPalPaymentPostToUrl;
// For shopping cart purchases.
postDataAndValue.Add("cmd", "_cart");
// Indicates the use of third-party shopping cart.
postDataAndValue.Add("upload", "1");
// This is the seller’s e‑mail address.
// You must supply your own address here!!!
postDataAndValue.Add("business", ApplicationSettingsFactory
.GetApplicationSettings().PayPalBusinessEmail);
// This field does not take part in the shopping process.
// It simply will be passed to the IPN script at the time
// of transaction confirmation.
postDataAndValue.Add("custom", orderRequest.Id.ToString());
// This parameter represents a currency code.
postDataAndValue.Add("currency_code", "GBP");
postDataAndValue.Add("first_name", orderRequest.CustomerFirstName);
postDataAndValue.Add("last_name", orderRequest.CustomerSecondName);
postDataAndValue.Add("address1", orderRequest.DeliveryAddressAddressLine1);
postDataAndValue.Add("address2", orderRequest.DeliveryAddressAddressLine2);
postDataAndValue.Add("city", orderRequest.DeliveryAddressCity);
postDataAndValue.Add("state", orderRequest.DeliveryAddressState);
postDataAndValue.Add("country", orderRequest.DeliveryAddressCountry);
postDataAndValue.Add("zip", orderRequest.DeliveryAddressZipCode);
// This parameter determines whether the delivery
// address should be requested.
// "1" means that the address will be requested; "0" means
// that it will be not.
//postDataAndValue.Add("no_shipping", "0");
// This is the URL where the user will be redirected after the payment
// is successfully performed. If this parameter is not passed, the buyer
// remains on the PayPal site.
postDataAndValue.Add("return",
Helpers.UrlHelper.Resolve("/Payment/PaymentComplete"));
// This is the URL where the user will be redirected when
// he cancels the payment.
// If the parameter is not passed, the buyer remains on the PayPal site.
postDataAndValue.Add("cancel_return",
Helpers.UrlHelper.Resolve("/Payment/PaymentCancel"));
// This is the URL where PayPal will pass information about the
// transaction (IPN). If the parameter is not passed, the value from
// the account settings will be used. If this value is not defined in
// the account settings, IPN will not be used.
postDataAndValue.Add("notify_url",
Helpers.UrlHelper.Resolve("/Payment/PaymentCallBack"));
int itemIndex = 1;
foreach (OrderItemPaymentRequest item in orderRequest.Items)
{
postDataAndValue.Add("item_name_" + itemIndex.ToString(), item.ProductName);
postDataAndValue.Add("amount_" + itemIndex.ToString(), item.Price.ToString());
postDataAndValue.Add("item_number_" + itemIndex.ToString(), item.Id.ToString());
postDataAndValue.Add("quantity_" + itemIndex.ToString(), item.Qty.ToString());
itemIndex++;
}
postDataAndValue.Add("shipping", orderRequest.ShippingCharge.ToString());
return paymentPostData;
}
