/// <summary>
/// Calculates HMACSHA256 from response.
/// This method uses
/// <see cref="PaymentUtils.CalculateHashHMAC(byte[], byte[])"/>
/// </summary>
/// <returns>computed hash value in string format</returns>
public string HashHMAC()
{
string macString = "";
string macDelimiter = "&";
macString = this.Version + macDelimiter + //1.
this.Stamp + macDelimiter + // 2.
this.Reference + macDelimiter + // 3.
this.Payment + macDelimiter + // 4.
this.Status + macDelimiter + // 5.
this.Algorithm; // 6.
string hashMac = PaymentUtils.CalculateHashHMAC(Encoding.UTF8.GetBytes(this.MerchantSecretKey),
Encoding.UTF8.GetBytes(macString));
return(hashMac);
}
/// <summary>
/// 9. Calculates MAC, MD5-turvatarkiste lasketaan
/// </summary>
/// <returns>MAC</returns>
public string CalculateMac()
{
string macString = "";
string macDelimiter = "+";
macString = this.Version + macDelimiter + // 1.
this.Stamp + macDelimiter + // 2.
this.Reference + macDelimiter + // 3.
this.MerchantId + macDelimiter + // 4.
this.Amount + macDelimiter + // 5.
this.Currency + macDelimiter + // 6.
this.Format + macDelimiter + // 7.
this.Algorithm + macDelimiter + // 8.
this.MerchantSecretKey;
macString = PaymentUtils.CalculateMD5HashUTF8(macString); //9.
this.MAC = macString;
return(macString);
}
protected void Page_Load(object sender, EventArgs e)
{
PaymentResponse paymentResponse = new PaymentResponse();
paymentResponse.SetValues(merchantSecretKey, Request.Params);
//if response valid (ok data)
if (paymentResponse.IsValid())
{
this.paymentResponseMessage.Text =
PaymentUtils.GetPaymentResponseStatusMessage(paymentResponse.Status);
}
else //invalid response (corrupt data)
{
Response.Redirect("~/PaymentErrorWebForm.aspx?error=response invalid");
}
//save values ready for payment status query
//Session used just for testign
Session["Stamp"] = paymentResponse.Stamp;
Session["Reference"] = paymentResponse.Reference;
}
protected void Page_Load(object sender, EventArgs e)
{
//testing query functionality
Query query = new Query();
query.InitializeValues((string)Session["Stamp"], (string)Session["Reference"],
this.merchantId, (string)Session["Amount"], this.merchantSecretKey);
//send Query to Checkout Finland
string queryResponse = "";
try
{
queryResponse = CheckoutClient.postQueryData(query.FormData());
}
catch (WebException ex)
{
//exception handling for testing
string errorMessage = ex.ToString();
errorMessage = (errorMessage.Length > 1000) ? errorMessage.Substring(0, 1000) : errorMessage;
Response.Redirect("~/PaymentErrorWebForm.aspx?error=" + HttpUtility.UrlEncode(errorMessage));
}
XDocument xmlDoc = XDocument.Parse(queryResponse);
XElement statusNode = (XElement)xmlDoc.FirstNode;
string statusValue = statusNode.Value;
this.queryResponseMessage.Text =
PaymentUtils.GetPaymentResponseStatusMessage(statusValue);
XElement tradeElem = (XElement)xmlDoc.FirstNode;
XElement statusElem = (XElement)tradeElem.FirstNode;
this.tradeBegin.Text = tradeElem.Name.ToString();
this.tradeEnd.Text = tradeElem.Name.ToString();
this.statusBegin.Text = statusElem.Name.ToString();
this.statusEnd.Text = statusElem.Name.ToString();
this.statusValue.Text = statusElem.Value;
}
/// <summary>
/// 24. Calculates MAC, MD5-turvatarkiste lasketaan.
/// This method uses
/// <see cref="PaymentUtils.CalculateMD5HashUTF8(string)"/>
/// </summary>
/// <returns>MAC</returns>
public string CalculateMac()
{
string macString = "";
string macDelimiter = "+";
macString = this.Version + macDelimiter + //1. P
this.Stamp + macDelimiter + // 2. P
this.Amount + macDelimiter + // 3. P
this.Reference + macDelimiter + // 4. P
this.Message + macDelimiter + // 5. V
this.Language + macDelimiter + // 6. V
this.MerchantId + macDelimiter + // 7. P
this.ReturnUrl + macDelimiter + // 8. P
this.CancelUrl + macDelimiter + // 9. P
this.RejectUrl + macDelimiter + // 10. V
this.DelayedUrl + macDelimiter + // 11. V
this.Country + macDelimiter + // 12. V
this.Currency + macDelimiter + // 13. P
this.Device + macDelimiter + // 14. P
this.Content + macDelimiter + // 15. P
this.Type + macDelimiter + // 16. P
this.Algorithm + macDelimiter + // 17. P
this.DeliveryDate + macDelimiter + // 18. P
this.FirstName + macDelimiter + // 19. V
this.FamilyName + macDelimiter + // 20. V
this.Address + macDelimiter + // 21. V
this.Postcode + macDelimiter + // 22. V
this.PostOffice + macDelimiter + // 23. V
this.MerchantSecretKey;
macString = PaymentUtils.CalculateMD5HashUTF8(macString); //24.
this.MAC = macString;
return(macString);
}
protected void Page_Load(object sender, EventArgs e)
{
if (IsPostBack)
{
//the below creates for example
//URL: http://localhost:53416/PaymentResponseWebForm.aspx";
string urlBeginning = this.TestUrl();
string returnURL = urlBeginning + "/PaymentResponseWebForm.aspx";
string cancelURL = urlBeginning + "/PaymentResponseWebForm.aspx";
string rejectURL = urlBeginning + "/PaymentResponseWebForm.aspx";
string delayedURL = urlBeginning + "/PaymentResponseWebForm.aspx";
//Create Payment
Payment payment = new Payment();
//set merchant data (required)
payment.InitializeValues(merchantId, merchantSecretKey);
//other required parameters
payment.Stamp = DateTime.Now.ToString("MMddyyyyhhmmssfff");
string modifiedAmount = PaymentUtils.ModifyAmount(this.AmountTextBox.Text); // remove comma or dot
payment.Amount = modifiedAmount; // 1 Euro minimum purchase (100 cents)
Session["Amount"] = modifiedAmount; //store Amount in Session for Query (just for testing)
payment.Reference = "123456";
payment.ReturnUrl = returnURL;
payment.CancelUrl = cancelURL;
payment.DeliveryDate = DateTime.Now.ToString("yyyyMMdd");
payment.Language = this.LanguageDropDownList.SelectedValue; // (required param)
payment.Country = "FIN"; // (required)
payment.Device = this.DeviceDropDownList.SelectedValue; //HTML or XML
//Optional
payment.RejectUrl = rejectURL;
payment.DelayedUrl = delayedURL;
payment.FirstName = this.FirstNameTextBox.Text;
payment.FamilyName = this.FamilyNameTextBox.Text;
payment.Address = this.AddressTextBox.Text;
payment.Postcode = this.PostcodeTextBox.Text;
payment.PostOffice = this.PostcodeTextBox.Text;
payment.Message = this.MessageTextBox.Text;
payment.Validate(); //optional validation (Checkout Finland validates data too)
//Send payment data to Checkout Finland,
//then make received payment options available
//to the Web Form
try
{
this.BankPaymentOptions = CheckoutClient.postPaymentData(payment.FormData());
}
catch (WebException ex)
{
//exception handling for testing
string errorMessage = ex.ToString();
errorMessage = (errorMessage.Length > 1000) ? errorMessage.Substring(0, 1000) : errorMessage;
Response.Redirect("~/PaymentErrorWebForm.aspx?error=" + HttpUtility.UrlEncode(errorMessage));
}
//if device HTML (1), then use WebForm for HTML page
if (payment.Device.Equals(Checkout.Payment.Device_HTML))
{
Server.Transfer("PaymentOptionsHTML.aspx");
}
else //WebForm for XML format
{
this.Payment = payment;
Server.Transfer("PaymentOptionsXML.aspx");
}
}
}
