private HttpWebRequest BuildSetRequest(PaypalExpressPart paypalExpressPart, OrderPart order)
{
// Create the web request
HttpWebRequest request = WebRequest.Create(paypalExpressPart.ApiUrl) as HttpWebRequest;
// Set type to POST
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
// Ensure order totals are up to date
order.UpdateTotals();
var pr = new PaypalRequest(paypalExpressPart, "SetExpressCheckout");
pr.Add("PAYMENTREQUEST_0_PAYMENTACTION", "Sale");
pr.Add("PAYMENTREQUEST_0_AMT", order.SubTotal.ToString("F2")); // before shipping and tax
pr.Add("PAYMENTREQUEST_0_ITEMAMT", order.SubTotal.ToString("F2")); // including shipping and tax
pr.Add("PAYMENTREQUEST_0_CURRENCYCODE", paypalExpressPart.Currency);
pr.Add("returnUrl", paypalExpressPart.SuccessUrl);
pr.Add("cancelUrl", paypalExpressPart.CancelUrl);
// order details
AddAllItems(pr, order);
// Set Address
SetShippingAddress(pr, order);
// format the data
pr.SetData(request);
return(request);
}
public ActionResult Index(string orderReference, int amount)
{
PaypalExpressPart paypalExpressPart = _services.WorkContext.CurrentSite.As <PaypalExpressPart>();
// set the success and cancel urls
string baseUrl = "http://" + Request.Url.Authority + Request.Path;
paypalExpressPart.CancelUrl = baseUrl + "/Cancel";
paypalExpressPart.SuccessUrl = baseUrl + "/Success";
// retrieve the order from the repo
OrderPart order = _orderService.GetOrderByNumber(orderReference);
// call PaymentExpressService
PaypalExpressResult result = _paypalExpressServices.SetExpressCheckout(paypalExpressPart, order);
// log paypal transaction
_paypalTransactionService.LogTransaction(order, result);
if (string.Compare(result.Ack, "success", true) == 0)
{
// Redirect to PayPal
return(new RedirectResult(paypalExpressPart.AuthorizationUrl + "&token=" + result.Token));
}
// if we get here then we were unable to get a token from SetExpressCheckout
// advise user we have a technical problem, please try again/later
var shape = _services.New.UnableToContactPaypal(RedirectTo: "~/Cascade.WebShop/Checkout/Summary");
return(new ShapeResult(this, shape));
}
/// <summary>
/// Call the Paypal GetExpressCheckoutDetails API (https://www.x.com/developers/paypal/documentation-tools/api/getexpresscheckoutdetails-api-operation-nvp)
/// </summary>
/// <param name="paypalExpressPart">part</param>
/// <param name="token">Paypal token</param>
/// <returns>result containing token, ack and payerId</returns>
public PaypalExpressResult GetExpressCheckoutDetails(PaypalExpressPart paypalExpressPart, string token)
{
PaypalExpressResult result = new PaypalExpressResult {
Method = "GetExpressCheckoutDetails"
};
HttpWebRequest request = BuildGetDetailsRequest(paypalExpressPart, token);
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
string[] lines = GetResponseLines(response);
result.Ack = GetValue(lines, "Ack").FirstOrDefault();
result.Token = GetValue(lines, "Token").FirstOrDefault();
result.PayerId = GetValue(lines, "PayerId").FirstOrDefault();
result.CorrelationId = GetValue(lines, "CORRELATIONID").FirstOrDefault();
// TODO: parse out useful information about the payer, address, etc
// and store somewhere: update the order? add to PaypalTransaction? customer?
if (string.Compare(result.Ack, "success", true) != 0)
{
ExtractErrors(lines, result);
}
}
return(result);
}
private HttpWebRequest BuildExpressCheckoutPaymentRequest(PaypalExpressPart paypalExpressPart, OrderPart order, string token, string payerId)
{
// Create the web request
HttpWebRequest request = WebRequest.Create(paypalExpressPart.ApiUrl) as HttpWebRequest;
// Set type to POST
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
// Create a paypal request
PaypalRequest pr = new PaypalRequest(paypalExpressPart, "DoExpressCheckoutPayment", token);
// Add data
pr.Add("PAYMENTREQUEST_0_PAYMENTACTION", "Sale");
pr.Add("PAYERID", payerId);
pr.Add("PAYMENTREQUEST_0_AMT", order.SubTotal.ToString("F2")); // before shipping and tax
pr.Add("PAYMENTREQUEST_0_ITEMAMT", order.SubTotal.ToString("F2")); // including shipping and tax
pr.Add("PAYMENTREQUEST_0_CURRENCYCODE", paypalExpressPart.Currency);
// order details
AddAllItems(pr, order);
// format the request with data from the paypal request
pr.SetData(request);
return(request);
}
/// <summary>
/// Call the Paypal SetExpressCheckout API (https://www.x.com/developers/paypal/documentation-tools/api/setexpresscheckout-api-operation-nvp)
/// </summary>
/// <param name="paypalExpressPart">part</param>
/// <param name="order">WebShop order</param>
/// <returns>result containing token and ack</returns>
public PaypalExpressResult SetExpressCheckout(PaypalExpressPart paypalExpressPart, OrderRecord order)
{
PaypalExpressResult result = new PaypalExpressResult { Method = "SetExpressCheckout" };
HttpWebRequest request = BuildSetRequest(paypalExpressPart, order);
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
string[] lines = GetResponseLines(response);
result.Ack = GetValue(lines, "Ack").FirstOrDefault();
result.Token = GetValue(lines, "Token").FirstOrDefault();
result.CorrelationId = GetValue(lines, "CORRELATIONID").FirstOrDefault();
if (string.Compare(result.Ack, "success", true) != 0)
ExtractErrors(lines, result);
}
return result;
}
void LazyLoadHandlers(LoadContentContext context, PaypalExpressPart part)
{
part.PwdField.Getter(() =>
{
try
{
return String.IsNullOrWhiteSpace(part.Record.PaypalPwd) ? String.Empty : Encoding.UTF8.GetString(_encryptionService.Decode(Convert.FromBase64String(part.Record.PaypalPwd)));
}
catch
{
Logger.Error("The PayPal password could not be decrypted. It might be corrupted, try to reset it.");
return null;
}
});
part.PwdField.Setter(value => part.Record.PaypalPwd = String.IsNullOrWhiteSpace(value) ? String.Empty : Convert.ToBase64String(_encryptionService.Encode(Encoding.UTF8.GetBytes(value))));
}
private HttpWebRequest BuildGetDetailsRequest(PaypalExpressPart paypalExpressPart, string token)
{
// Create the web request
HttpWebRequest request = WebRequest.Create(paypalExpressPart.ApiUrl) as HttpWebRequest;
// Set type to POST
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
// Create a paypal request
PaypalRequest pr = new PaypalRequest(paypalExpressPart, "GetExpressCheckoutDetails", token);
// format the request with data from the paypal request
pr.SetData(request);
return(request);
}
void LazyLoadHandlers(LoadContentContext context, PaypalExpressPart part)
{
part.PwdField.Getter(() =>
{
try
{
return(String.IsNullOrWhiteSpace(part.Record.PaypalPwd) ? String.Empty : Encoding.UTF8.GetString(_encryptionService.Decode(Convert.FromBase64String(part.Record.PaypalPwd))));
}
catch
{
Logger.Error("The PayPal password could not be decrypted. It might be corrupted, try to reset it.");
return(null);
}
});
part.PwdField.Setter(value => part.Record.PaypalPwd = String.IsNullOrWhiteSpace(value) ? String.Empty : Convert.ToBase64String(_encryptionService.Encode(Encoding.UTF8.GetBytes(value))));
}
/// <summary>
/// Create a PaypalRequest with some basic data already set up
/// </summary>
/// <param name="part">Settings</param>
/// <param name="method">The Paypal Method(SetExpressCheckout, GetExpressCheckoutDetails, or DoExpressCheckoutPayment)</param>
/// <param name="token">Paypal Token (not required for SetExpressCheckout)</param>
public PaypalRequest(PaypalExpressPart part, string method, string token = null)
{
values = new Dictionary <string, string>();
// https://cms.paypal.com/us/cgi-bin/?cmd=_render-content&content_ID=developer/e_howto_api_nvp_NVPAPIOverview
// Method must be first (although doesn't seem to make any diff)
Add("METHOD", method);
Add("VERSION", part.Version);
// Credentials
Add("USER", part.User);
Add("PWD", part.Pwd);
Add("SIGNATURE", part.Signature);
if (!string.IsNullOrEmpty(token))
{
Add("TOKEN", token);
}
}
public ActionResult Success(string token, string PayerID)
{
// NOTE:
// This code calls PayPal web services synchronously
//
// Retrieve the order number
int orderId = _paypalTransactionService.GetOrderId(token);
string orderReference = (orderId + 1000).ToString();
// retrieve the order
OrderPart order = _orderService.GetOrderByNumber(orderReference);
// Call GetExpressCheckoutDetails
PaypalExpressPart paypalExpressPart = _services.WorkContext.CurrentSite.As <PaypalExpressPart>();
var result = _paypalExpressServices.GetExpressCheckoutDetails(paypalExpressPart, token);
// Log the result
_paypalTransactionService.LogTransaction(order, result);
if (string.Compare(result.Ack, "success", true) == 0)
{
// Call DoExpressCheckoutPayment
var doResult = _paypalExpressServices.DoExpressCheckoutPayment(paypalExpressPart, order, token, result.PayerId);
// Log the result
_paypalTransactionService.LogTransaction(order, doResult);
if (string.Compare(doResult.Ack, "success", true) == 0)
{
// Display success page
string paymentId = token;
string command = "Success";
return(RedirectToAction("PaymentResponse", "Order", new { area = "Cascade.WebShop", paymentId = paymentId, result = command, orderReference }));
}
}
// advise user we have a technical problem, please try again/later
var shape = _services.New.UnableToContactPaypal(RedirectTo: "~/Cascade.WebShop/Checkout/Summary");
return(new ShapeResult(this, shape));
}
/// <summary>
/// Call the Paypal SetExpressCheckout API (https://www.x.com/developers/paypal/documentation-tools/api/setexpresscheckout-api-operation-nvp)
/// </summary>
/// <param name="paypalExpressPart">part</param>
/// <param name="order">WebShop order</param>
/// <returns>result containing token and ack</returns>
public PaypalExpressResult SetExpressCheckout(PaypalExpressPart paypalExpressPart, OrderPart order)
{
PaypalExpressResult result = new PaypalExpressResult {
Method = "SetExpressCheckout"
};
HttpWebRequest request = BuildSetRequest(paypalExpressPart, order);
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
string[] lines = GetResponseLines(response);
result.Ack = GetValue(lines, "Ack").FirstOrDefault();
result.Token = GetValue(lines, "Token").FirstOrDefault();
result.CorrelationId = GetValue(lines, "CORRELATIONID").FirstOrDefault();
if (string.Compare(result.Ack, "success", true) != 0)
{
ExtractErrors(lines, result);
}
}
return(result);
}
/// <summary>
/// Call the Paypal GetExpressCheckoutDetails API (https://www.x.com/developers/paypal/documentation-tools/api/getexpresscheckoutdetails-api-operation-nvp)
/// </summary>
/// <param name="paypalExpressPart">part</param>
/// <param name="token">Paypal token</param>
/// <returns>result containing token, ack and payerId</returns>
public PaypalExpressResult GetExpressCheckoutDetails(PaypalExpressPart paypalExpressPart, string token)
{
PaypalExpressResult result = new PaypalExpressResult { Method = "GetExpressCheckoutDetails" };
HttpWebRequest request = BuildGetDetailsRequest(paypalExpressPart, token);
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
string[] lines = GetResponseLines(response);
result.Ack = GetValue(lines, "Ack").FirstOrDefault();
result.Token = GetValue(lines, "Token").FirstOrDefault();
result.PayerId = GetValue(lines, "PayerId").FirstOrDefault();
result.CorrelationId = GetValue(lines, "CORRELATIONID").FirstOrDefault();
// TODO: parse out useful information about the payer, address, etc
// and store somewhere: update the order? add to PaypalTransaction? customer?
if (string.Compare(result.Ack, "success", true) != 0)
ExtractErrors(lines, result);
}
return result;
}
/// <summary>
/// Create a PaypalRequest with some basic data already set up
/// </summary>
/// <param name="part">Settings</param>
/// <param name="method">The Paypal Method(SetExpressCheckout, GetExpressCheckoutDetails, or DoExpressCheckoutPayment)</param>
/// <param name="token">Paypal Token (not required for SetExpressCheckout)</param>
public PaypalRequest(PaypalExpressPart part, string method, string token = null)
{
values = new Dictionary<string, string>();
// https://cms.paypal.com/us/cgi-bin/?cmd=_render-content&content_ID=developer/e_howto_api_nvp_NVPAPIOverview
// Method must be first (although doesn't seem to make any diff)
Add("METHOD", method);
Add("VERSION", part.Version);
// Credentials
Add("USER", part.User);
Add("PWD", part.Pwd);
Add("SIGNATURE", part.Signature);
if (!string.IsNullOrEmpty(token))
Add("TOKEN", token);
}
private HttpWebRequest BuildGetDetailsRequest(PaypalExpressPart paypalExpressPart, string token)
{
// Create the web request
HttpWebRequest request = WebRequest.Create(paypalExpressPart.ApiUrl) as HttpWebRequest;
// Set type to POST
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
// Create a paypal request
PaypalRequest pr = new PaypalRequest(paypalExpressPart, "GetExpressCheckoutDetails", token);
// format the request with data from the paypal request
pr.SetData(request);
return request;
}
private HttpWebRequest BuildSetRequest(PaypalExpressPart paypalExpressPart, OrderRecord order)
{
// Create the web request
HttpWebRequest request = WebRequest.Create(paypalExpressPart.ApiUrl) as HttpWebRequest;
// Set type to POST
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
// Ensure order totals are up to date
order.UpdateTotals();
var pr = new PaypalRequest(paypalExpressPart, "SetExpressCheckout");
pr.Add("PAYMENTREQUEST_0_PAYMENTACTION", "Sale");
pr.Add("PAYMENTREQUEST_0_AMT", order.SubTotal.ToString("F2")); // before shipping and tax
pr.Add("PAYMENTREQUEST_0_ITEMAMT", order.SubTotal.ToString("F2")); // including shipping and tax
pr.Add("PAYMENTREQUEST_0_CURRENCYCODE", paypalExpressPart.Currency);
pr.Add("returnUrl", paypalExpressPart.SuccessUrl);
pr.Add("cancelUrl", paypalExpressPart.CancelUrl);
// order details
AddAllItems(pr, order);
// Set Address
SetShippingAddress(pr, order);
// format the data
pr.SetData(request);
return request;
}
private HttpWebRequest BuildExpressCheckoutPaymentRequest(PaypalExpressPart paypalExpressPart, OrderRecord order, string token, string payerId)
{
// Create the web request
HttpWebRequest request = WebRequest.Create(paypalExpressPart.ApiUrl) as HttpWebRequest;
// Set type to POST
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
// Create a paypal request
PaypalRequest pr = new PaypalRequest(paypalExpressPart, "DoExpressCheckoutPayment", token);
// Add data
pr.Add("PAYMENTREQUEST_0_PAYMENTACTION", "Sale");
pr.Add("PAYERID", payerId);
pr.Add("PAYMENTREQUEST_0_AMT", order.SubTotal.ToString("F2")); // before shipping and tax
pr.Add("PAYMENTREQUEST_0_ITEMAMT", order.SubTotal.ToString("F2")); // including shipping and tax
pr.Add("PAYMENTREQUEST_0_CURRENCYCODE", paypalExpressPart.Currency);
// order details
AddAllItems(pr, order);
// format the request with data from the paypal request
pr.SetData(request);
return request;
}
