/// <summary>
/// necessary initializations for smoothness and such
/// </summary>
private void Initialize()
{
UpdateConversions = new ButtonCommand(ConvertAll, () => _convertAmount > 0); //only invoke if amount is positive
SelectedCurrency = new CurrencyFields { //default
Code = "USD",
Value = 1
};
}
public bool ProcessPayment(decimal purchaseAmount, CurrencyFields currencyCode, string orderId)
{
JccHelper.CheckOrderID(orderId);
var roundedOrderTotal = Math.Round(purchaseAmount, CurrencyExp);
JccHelper.CheckPurchaseAmt(roundedOrderTotal, CurrencyExp);
return(PostData(purchaseAmount, currencyCode, orderId));
}
private bool PostData(decimal purchaseAmount, CurrencyFields currencyCode, string orderId)
{
// encode form data
StringBuilder postString = new StringBuilder();
bool first = true;
foreach (KeyValuePair <string, string> pair in CreateQueryParameters(purchaseAmount, currencyCode, orderId))
{
if (first)
{
first = false;
}
else
{
postString.Append("&");
}
postString.AppendFormat("{0}={1}", pair.Key, System.Web.HttpUtility.UrlEncode(pair.Value));
}
ASCIIEncoding ascii = new ASCIIEncoding();
byte[] postBytes = ascii.GetBytes(postString.ToString());
// set up request object
HttpWebRequest request;
try
{
request = WebRequest.Create(JccHelper.GetJccURL(_jccSettings.IsTestMode)) as HttpWebRequest;
}
catch (UriFormatException)
{
request = null;
}
if (request == null)
{
throw new ApplicationException("Invalid URL: " + JccHelper.GetJccURL(_jccSettings.IsTestMode));
}
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = postBytes.Length;
// add post data to request
System.IO.Stream postStream = request.GetRequestStream();
postStream.Write(postBytes, 0, postBytes.Length);
postStream.Close();
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
if (response.StatusCode == HttpStatusCode.Accepted || response.StatusCode == HttpStatusCode.OK)
{
return(true);
}
return(false);
}
protected string CalculateRequestSignature(decimal purchaseAmount, CurrencyFields currencyCode, string orderId)
{
var roundedOrderTotal = Math.Round(purchaseAmount, CurrencyExp);
string value =
_jccSettings.Password +
_jccSettings.MerchantId +
_jccSettings.AcquirerId +
orderId +
JccHelper.GetPaddedAmount(roundedOrderTotal) +
(int)currencyCode;
return(JccHelper.CalculateSHA1Hash(value));
}
private IDictionary <string, string> CreateQueryParameters(decimal purchaseAmount, CurrencyFields currencyCode, string orderId)
{
//create query parameters
return(new Dictionary <string, string>
{
["Version"] = Version,
["MerID"] = _jccSettings.MerchantId,
["AcqID"] = _jccSettings.AcquirerId,
["MerRespURL"] = _jccSettings.ResponseURL,
["PurchaseAmt"] = ProcessPruchaseAmount(purchaseAmount),
["PurchaseCurrency"] = ((int)currencyCode).ToString(),
["PurchaseCurrencyExponent"] = CurrencyExp.ToString(),
["OrderID"] = orderId,
["CaptureFlag"] = CaptureFlag,
["Signature"] = CalculateRequestSignature(purchaseAmount, currencyCode, orderId),
["SignatureMethod"] = SignatureMethod
});
}