/// <summary>
/// Saves the express checkout data to persistent session state.
/// </summary>
/// <param name="user">The user to associate with the express checkout session</param>
public void Save(User user)
{
UserSettingCollection acUserSettings = user.Settings;
SetPayPalSettings(acUserSettings, this.Token, this.TokenExpiration, this.PayerID, this.Payer, user.UserId);
WebTrace.Write("Saved token for user " + user.UserId);
}
/// <summary>
/// Deletes the express checkout data from persistent session state.
/// </summary>
/// <param name="user">The user to delete express checkout session for</param>
public static void Delete(User user)
{
UserSettingCollection acUserSettings = user.Settings;
RemovePayPalSettings(acUserSettings);
WebTrace.Write("Deleted token for user " + user.UserId);
}
public ExpressCheckoutResult SetExpressCheckout()
{
HttpContext context = HttpContext.Current;
User user = Token.Instance.User;
Basket basket = user.Basket;
//MAKE SURE BASKET IS PROPERLY PACKAGED FOR CHECKOUT
basket.Package();
//GET EXISTING SESSION IF IT IS PRESENT
ExpressCheckoutSession existingSession = ExpressCheckoutSession.Current;
if (existingSession != null)
{
WebTrace.Write("Existing session token: " + existingSession.Token);
}
//CREATE THE EXPRESS CHECKOUT REQUEST OBJECT
SetExpressCheckoutRequestType expressCheckoutRequest = new SetExpressCheckoutRequestType();
expressCheckoutRequest.SetExpressCheckoutRequestDetails = new SetExpressCheckoutRequestDetailsType();
if (existingSession != null)
{
expressCheckoutRequest.SetExpressCheckoutRequestDetails.Token = existingSession.Token;
}
expressCheckoutRequest.Version = "1.0";
//GET THE CURRENCY FOR THE TRANSACTION
string baseCurrencyCode = Token.Instance.Store.BaseCurrency.ISOCode;
CurrencyCodeType baseCurrency = PayPalProvider.GetPayPalCurrencyType(baseCurrencyCode);
//BUILD THE REQUEST DETAILS
SetExpressCheckoutRequestDetailsType expressCheckoutDetails = expressCheckoutRequest.SetExpressCheckoutRequestDetails;
LSDecimal basketTotal = basket.Items.TotalPrice();
WebTrace.Write("Basket Total: " + basketTotal.ToString());
expressCheckoutDetails.OrderTotal = new BasicAmountType();
expressCheckoutDetails.OrderTotal.currencyID = baseCurrency;
expressCheckoutDetails.OrderTotal.Value = string.Format("{0:##,##0.00}", basketTotal);
expressCheckoutDetails.MaxAmount = new BasicAmountType();
expressCheckoutDetails.MaxAmount.currencyID = baseCurrency;
expressCheckoutDetails.MaxAmount.Value = string.Format("{0:##,##0.00}", basketTotal + 50);
//SET THE URLS
string storeUrl = GetStoreUrl();
expressCheckoutDetails.ReturnURL = storeUrl + "/PayPalExpressCheckout.aspx?Action=GET";
expressCheckoutDetails.CancelURL = storeUrl + "/PayPalExpressCheckout.aspx?Action=CANCEL";
//SET THE CUSTOM VALUE TO THE USER ID FOR MATCHING DURING GET
expressCheckoutDetails.Custom = "UID" + basket.UserId.ToString();
//SET THE CUSTOMER ADDRESS
Address billingAddress = user.PrimaryAddress;
AddressType address = new AddressType();
address.Name = billingAddress.FirstName + " " + billingAddress.LastName;
address.Street1 = billingAddress.Address1;
address.Street2 = billingAddress.Address2;
address.CityName = billingAddress.City;
address.PostalCode = billingAddress.PostalCode;
if (billingAddress.Country != null)
{
address.Country = PayPalProvider.GetPayPalCountry(billingAddress.CountryCode);
}
else
{
address.Country = CountryCodeType.US;
}
address.CountrySpecified = true;
expressCheckoutDetails.BuyerEmail = billingAddress.Email;
expressCheckoutDetails.Address = address;
//SET THE PAYMENT ACTION
expressCheckoutDetails.PaymentAction = this.UseAuthCapture ? PaymentActionCodeType.Sale : PaymentActionCodeType.Authorization;
expressCheckoutDetails.PaymentActionSpecified = true;
//EXECUTE REQUEST
SetExpressCheckoutResponseType expressCheckoutResponse;
context.Trace.Write("DO SOAP CALL");
expressCheckoutResponse = (SetExpressCheckoutResponseType)SoapCall("SetExpressCheckout", expressCheckoutRequest);
context.Trace.Write("CHECK SOAP RESULT");
if (expressCheckoutResponse == null)
{
ErrorType[] customErrorList = new ErrorType[1];
ErrorType customError = new ErrorType();
customError.ErrorCode = "NORESP";
customError.ShortMessage = "No Response From Server";
customError.LongMessage = "The PayPal service is unavailable at this time.";
customErrorList[0] = customError;
return(new ExpressCheckoutResult(0, string.Empty, customErrorList));
}
//IF ERRORS ARE IN RESPONSE, RETURN THEM AND EXIT PROCESS
if (expressCheckoutResponse.Errors != null)
{
return(new ExpressCheckoutResult(0, string.Empty, expressCheckoutResponse.Errors));
}
//NO ERRORS FOUND, PUT PAYPAL DETAILS INTO SESSION
context.Trace.Write("Store PayPal Token In Session");
ExpressCheckoutSession newSession = new ExpressCheckoutSession();
newSession.Token = expressCheckoutResponse.Token;
newSession.TokenExpiration = DateTime.UtcNow.AddHours(3);
newSession.Save();
context.Trace.Write("Saved PayPal Token:" + newSession.Token);
context.Trace.Write("Token Expiration:" + newSession.TokenExpiration.ToLongDateString());
//RETURN TO CALLER INCLUDING REDIRECTION URL
string redirectUrl = "https://www" + (this.UseSandbox ? ".sandbox" : string.Empty) + ".paypal.com/webscr?cmd=_express-checkout&token=" + expressCheckoutResponse.Token;
return(new ExpressCheckoutResult(0, redirectUrl, null));
}
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