public static PayPalPaymentConfirmation ProcessResponse(PayPalPaymentConfirmation payment)
{
Contract.Requires <ArgumentNullException>(null != payment);
if (string.IsNullOrWhiteSpace(payment.Response))
{
log.Log("Empty response returned from PayPal.");
}
else if (payment.Response.StartsWith("SUCCESS", StringComparison.InvariantCultureIgnoreCase))
{
payment.Successful = true;
payment = PaymentCore.ProcessSuccessfulResponse(payment);
var preferenceTable = new AzureTable <UserPreferenceRow>(ServerConfiguration.Default);
var preference = preferenceTable.QueryBy(payment.Application.Identifier.ToString(), payment.User.Identifier.ToString());
preference = preference ?? new UserPreferenceRow(payment.Application.Identifier, payment.User.Identifier);
preference.MaxiumAllowedApplications = preference.MaxiumAllowedApplications.HasValue ? preference.MaxiumAllowedApplications + 1 : 1;
preferenceTable.AddOrUpdateEntity(preference);
}
else
{
payment.Successful = false;
log.Log("Error Accepting payment response.");
}
var table = new AzureTable <PayPalPaymentConfirmationRow>(ServerConfiguration.Default);
table.AddEntity(payment.Convert());
return(payment);
}
public bool ValidatePurchase(PayPalPaymentConfirmation payment)
{
Contract.Requires <ArgumentNullException>(null != payment);
Contract.Requires <ArgumentException>(!string.IsNullOrWhiteSpace(payment.TransactionId));
payment.Successful = false;
var url = ServerConfiguration.PayPalPaymentDataTransferUrl;
var query = "cmd=_notify-synch&tx={0}&at={1}".FormatWithCulture(payment.TransactionId, ServerConfiguration.PayPalPaymentDataTransfer);
var req = (HttpWebRequest)WebRequest.Create(url);
// Set values for the request back
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
req.ContentLength = query.Length;
// Write the request back IPN strings
using (var output = new StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII))
{
output.Write(query);
// Do the request to PayPal and get the response
var input = new StreamReader(req.GetResponse().GetResponseStream());
payment.Response = input.ReadToEnd();
payment = PaymentCore.ProcessResponse(payment);
}
return(payment.Successful);
}