private void VerifyTransactionType(PayPalInfo payPalInfo)
{
if (payPalInfo.IpnTxnType != "web_accept")
{
throw new Exception("ipn_txn_type is not 'web_accept'");
}
}
private void VerifyReceiverEmail(PayPalInfo payPalInfo)
{
if (payPalInfo.IpnReceiverEmail.ToUpper() != _payPalSettings.IpnReceiverEmail.ToUpper())
{
throw new Exception();
}
}
private void VerifyProductNumber(PayPalInfo payPalInfo)
{
if (payPalInfo.IpnItemNumber != ItemNumber)
{
throw new Exception("ipn_item_number not equal to defined item number");
}
}
string EmailBody(PayPalInfo payPalInfo, string licenseCode)
{
var placeholders = _emailTemplatePlaceholders.Populate(licenseCode, payPalInfo);
var bodyTemplate = File.ReadAllText(_emailTemplateFile);
return(_templateToMessageConverter.Convert(bodyTemplate, placeholders));
}
private void VerifyCostTotals(PayPalInfo payPalInfo)
{
var checksumTotal = payPalInfo.IpnQuantity * ItemCostPerUnit + payPalInfo.Tax;
if (checksumTotal != Convert.ToDecimal(payPalInfo.McGross))
{
throw new Exception("Cost does not match");
}
}
public Dictionary <string, string> Populate(string licenseCode, PayPalInfo payPalInfo)
{
var placeholders = new Dictionary <string, string>();
placeholders.Clear();
AddLicensePlaceholders(licenseCode, placeholders);
AddPayPalInfoPlaceholders(placeholders, payPalInfo);
return(placeholders);
}
public void Run(PayPalInfo payPalInfo)
{
_paypalIpnValidation.EnsureValid(payPalInfo);
var productProfile = _productProfileSettings.GetValueOrDefault(payPalInfo.IpnItemNumber);
var licenseCode = GenerateLicenseCode(payPalInfo, productProfile);
var message = _userLicenseEmail.ConstructEmail(payPalInfo, licenseCode);
_emailSender.SendEmail(message);
}
private string GenerateLicenseCode(PayPalInfo payPalInfo, string licenseTypeProfile)
{
_licenseGenerator.Initialize();
_licenseGenerator.SetActiveProfile(licenseTypeProfile);
_licenseGenerator.NumberOfUsers = payPalInfo.IpnQuantity;
_licenseGenerator.UserData = payPalInfo.UserData;
var licenseCode = _licenseGenerator.Generate();
return(licenseCode);
}
public MailMessage ConstructEmail(PayPalInfo payPalInfo, string licenseCode)
{
var message = new MailMessage();
message.From = new MailAddress(_emailAddressFrom);
message.Subject = _subject;
message.To.Add(payPalInfo.PayerEmail);
message.Bcc.Add(_emailAddressBcc);
message.IsBodyHtml = true;
message.Body = EmailBody(payPalInfo, licenseCode);
message.IsBodyHtml = false;
return(message);
}
public bool EnsureValid(PayPalInfo payPalInfo)
{
DataDumper.Dump(payPalInfo.SerializedMessage());
var cmd = "cmd = _notify-validate &" + payPalInfo.SerializedMessage();
var client = new WebClient();
client.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
DataDumper.Dump(cmd);
var bytes = Encoding.UTF8.GetBytes(cmd);
// Send HTTP POST to verify IPN
var responseBuffer = client.UploadData(_payPalSettings.IpnValidationUrl, "POST", bytes);
var responseMessage = Encoding.UTF8.GetString(responseBuffer);
DataDumper.Dump(responseMessage);
if (responseMessage != "VERIFIED")
{
return(false);
}
//try
//{
// //VerifyTransactionType(payPalInfo);
// //VerifyProductNumber(payPalInfo);
// //VerifyCostTotals(payPalInfo);
// //VerifyReceiverEmail(payPalInfo);
//}
//catch (Exception)
//{
// return false;
//}
return(true);
}
private void AddPayPalInfoPlaceholders(Dictionary <string, string> placeholders, PayPalInfo payPalInfo)
{
placeholders.Add("IpnItemNumber", payPalInfo.IpnItemNumber);
placeholders.Add("LastName", payPalInfo.LastName);
placeholders.Add("PayerCompany", payPalInfo.PayerCompany);
placeholders.Add("IpnTxnType", payPalInfo.IpnTxnType);
placeholders.Add("IpnItemNumber", payPalInfo.IpnItemNumber);
placeholders.Add("McCurrency", payPalInfo.McCurrency);
placeholders.Add("PaymentDate", payPalInfo.PaymentDate);
placeholders.Add("PaymentType", payPalInfo.PaymentType);
placeholders.Add("ResidenceCountry", payPalInfo.ResidenceCountry);
placeholders.Add("TestIpn", payPalInfo.TestIpn);
placeholders.Add("TransactionSubject", payPalInfo.TransactionSubject);
placeholders.Add("HandlingAmount", payPalInfo.HandlingAmount.ToString());
placeholders.Add("IpnQuantity", payPalInfo.IpnQuantity.ToString());
placeholders.Add("McFee", payPalInfo.McFee.ToString());
placeholders.Add("McGross", payPalInfo.McGross.ToString());
placeholders.Add("PaymentFee", payPalInfo.PaymentFee.ToString());
placeholders.Add("PaymentGross", payPalInfo.PaymentGross.ToString());
placeholders.Add("Shipping", payPalInfo.Shipping.ToString());
placeholders.Add("Tax", payPalInfo.Tax.ToString());
}