public ActionResult PaymentPre(string orderId, string userName)
{
// Retrieve Work Order
WorkOrder workOrder = woServ.Get(Convert.ToInt32(orderId));
if (workOrder == null)
{
levent.Level = LogLevel.Error;
levent.Message = "WorkOrder ID not valid Work Order. WO#:" + orderId;
log.Log(levent);
return View("IndexError", workOrder);
}
double payment = workOrder.transportFee;
if (payment <= 0.0)
{
levent.Level = LogLevel.Error;
levent.Message = "There is no transportation fee associated with this work order - there is no PayPal transaction required. WO#:" + orderId;
log.Log(levent);
return View("IndexError", workOrder);
}
PaypalExpressCheckout paypal = new PaypalExpressCheckout();
SetExpressCheckoutResponseType response = paypal.SetExpressCheckout(payment.ToString());
if (response != null)
{
// # Success values
if (response.Ack.ToString().Trim().ToUpper().Equals("SUCCESS"))
{
// # Redirecting to PayPal for authorization
// Once you get the "Success" response, needs to authorise the
// transaction by making buyer to login into PayPal. For that,
// need to construct redirect url using EC token from response.
// For example,
// `redirectURL="https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=" + setExpressCheckoutResponse.Token;`
// Save PayPal token
workOrder.paypalToken = response.Token;
// Save work order updates
woServ.Save(workOrder, userName);
object paypalConfigSection = null;
try
{
paypalConfigSection = System.Web.Configuration.WebConfigurationManager.GetSection("paypal");
}
catch (System.Exception ex)
{
throw new ConfigException("Unable to load 'paypal' section from *.config: " + ex.Message);
}
if (paypalConfigSection == null)
{
throw new ConfigException(
"Cannot parse *.Config file. Ensure you have configured the 'paypal' section correctly.");
}
NameValueConfigurationCollection paypalSettings = (NameValueConfigurationCollection)paypalConfigSection.GetType().GetProperty("Settings").GetValue(paypalConfigSection, null);
var paypalUrl = paypalSettings["paypalUrl"].Value;
var redirectUrl = paypalUrl + "_express-checkout&token=" + response.Token;
return new RedirectResult(redirectUrl, false);
}
// # Error Values
else
{
List<ErrorType> errorMessages = response.Errors;
foreach (ErrorType error in errorMessages)
{
levent.Level = LogLevel.Error;
levent.Message += error.LongMessage;
log.Log(levent);
workOrder.paypalErrors += error.ShortMessage;
}
// Save work order updates
woServ.Save(workOrder, userName);
return View("IndexError", workOrder);
}
}
else
{
levent.Level = LogLevel.Error;
levent.Message = "The response from PayPal SetExpressCheckoutResponseType API was null. WO#:" + orderId;
log.Log(levent);
return View("IndexError", workOrder);
}
}
public ActionResult PaymentPost(string token, string payerId, string userName)
{
double payment = 0.0;
// TODO: There was an issue with the WO returned by the first query below - the work order
// can't be saved unless the work order is retrieved with the woServ.Get() call
WorkOrder woAll = woServ.GetRepo().GetAllQ().Where(wo => wo.paypalToken == token).FirstOrDefault();
WorkOrder workOrder = woServ.Get(woAll.ID);
if (workOrder != null)
{
if (workOrder.transportFee <= 0.0)
{
levent.Level = LogLevel.Error;
levent.Message = "There is no transportation fee associated with this work order - there is no PayPal transaction required. WO#:" + workOrder.ID;
log.Log(levent);
return View("IndexError", workOrder);
}
else
{
payment = workOrder.transportFee;
}
}
else
{
levent.Level = LogLevel.Error;
levent.Message = "WorkOrder ID not valid Work Order. WO#:" + workOrder.ID;
log.Log(levent);
return View("IndexError", workOrder);
}
// PayPal call to get buyer details
PaypalExpressCheckout paypal = new PaypalExpressCheckout();
GetExpressCheckoutDetailsResponseType detailsResponse = paypal.GetExpressCheckoutDetails(token);
if (detailsResponse != null)
{
// # Success values
if (detailsResponse.Ack.ToString().Trim().ToUpper().Equals("SUCCESS"))
{
if ((detailsResponse.GetExpressCheckoutDetailsResponseDetails.PaymentDetails == null) ||
(Convert.ToDouble(detailsResponse.GetExpressCheckoutDetailsResponseDetails.PaymentDetails[0].OrderTotal.value) != workOrder.transportFee))
{
// PayPal charge is different than transportFee in database - can't process payment
levent.Level = LogLevel.Error;
levent.Message = "Transport Fee request to PayPal is a different amount than associated with the WO in database. WO# " + workOrder.ID;
log.Log(levent);
return View("IndexError", workOrder);
}
// Unique PayPal Customer Account identification number. This value will be null unless
// you authorize the payment by redirecting to PayPal after `SetExpressCheckout` call.
workOrder.paypalPayerId = detailsResponse.GetExpressCheckoutDetailsResponseDetails.PayerInfo.PayerID;
woServ.Save(workOrder, userName);
}
// # Error Values
else
{
List<ErrorType> errorMessages = detailsResponse.Errors;
foreach (ErrorType error in errorMessages)
{
levent.Level = LogLevel.Error;
levent.Message += error.LongMessage;
log.Log(levent);
workOrder.paypalErrors += error.ShortMessage;
}
// Save work order updates
woServ.Save(workOrder, userName);
return View("IndexError", workOrder);
}
}
else
{
levent.Level = LogLevel.Error;
levent.Message = "The response from PayPal GetExpressCheckoutDetailsResponseType API was null. WO#:" + workOrder.ID;
log.Log(levent);
return View("IndexError", workOrder);
}
return View("IndexPostPaypal", workOrder);
}
