/// <summary>
/// Cancels all pending operations.
/// </summary>
/// <returns>A task that can be awaited until operations are cancelled.</returns>
public async Task CancelOperation()
{
await this.protocol.ResetTerminalStateAsync();
var signatureArgs = new SignatureEventArgs {
IsCanceled = true
};
this.SignatureEvent(null, signatureArgs);
var inputValueArgs = new InputValueEventArgs {
IsCanceled = true
};
this.InputValueEvent(null, inputValueArgs);
var creditCardArgs = new CardSwipeEventArgs {
IsCanceled = true
};
this.CardSwipeEvent(null, creditCardArgs);
var pinDataArgs = new PinDataEventArgs {
IsCanceled = true
};
this.PinDataEvent(null, pinDataArgs);
var buttonPressArgs = new ButtonPressEventArgs {
IsCanceled = true
};
this.ButtonPressEvent(null, buttonPressArgs);
}
/// <summary>
/// Handles signature data received.
/// </summary>
/// <param name="responseMessage">Event message.</param>
private void HandleSignatureEvent(ResponseMessage responseMessage)
{
const int SignatureDataHeaderLength = 9;
// Check for invalid signature event message.
if (responseMessage.ResponseValues == null || responseMessage.ResponseValues.Count < 2)
{
return;
}
int length = int.Parse(responseMessage.ResponseValues[1], CultureInfo.InvariantCulture.NumberFormat);
this.signatureData.AddRange(responseMessage.RawData.Skip(SignatureDataHeaderLength).Take(length));
// No more data to receive.
if (string.Equals(responseMessage.ResponseValues[0], "N"))
{
if (this.SignatureEvent != null)
{
var args = new SignatureEventArgs()
{
SignatureData = this.ConvertSignatureToUpos(this.signatureData)
};
this.SignatureEvent(this, args);
}
}
}
private void FPE_ReceivedSigCapDataEvent(object signatureData)
{
string signature = string.Empty;
HydraSignatureEnhanced sig = new HydraSignatureEnhanced((byte[])signatureData);
signature = Convert.ToBase64String(sig.ToByteArray());
SignatureEventArgs args = new SignatureEventArgs()
{
SignatureData = signature
};
this.SignatureEvent(this, args);
}
/// <summary>
/// Handles signature data started.
/// </summary>
/// <param name="responseMessage">Event message.</param>
private void HandleSignatureStartEvent(ResponseMessage responseMessage)
{
this.signatureData.Clear();
// If no signature data.
if (string.Equals(responseMessage.ResponseValues[0], "00000"))
{
if (this.SignatureEvent != null)
{
var args = new SignatureEventArgs()
{
IsCanceled = true
};
this.SignatureEvent(this, args);
}
}
}
private void InternalCancelOperation()
{
try
{
this.ClearData();
var signatureArgs = new SignatureEventArgs {
IsCanceled = true
};
this.SignatureEvent(null, signatureArgs);
var inputValueArgs = new InputValueEventArgs {
IsCanceled = true
};
this.InputValueEvent(null, inputValueArgs);
var creditCardArgs = new CardSwipeEventArgs {
IsCanceled = true
};
this.CardSwipeEvent(null, creditCardArgs);
var pinDataArgs = new PinDataEventArgs {
IsCanceled = true
};
this.PinDataEvent(null, pinDataArgs);
var buttonPressArgs = new ButtonPressEventArgs {
IsCanceled = true
};
this.ButtonPressEvent(null, buttonPressArgs);
}
catch (COMException ex)
{
NetTracer.Warning(ex, "L5300Terminal - FPE COM exception");
}
}
private void FPE_ReceivedVariableValue(string strVariableName, string strVariableValue)
{
// NOTE: Can not read or set variables in this event handler. Device API does not support
switch (strVariableName)
{
case "cnum":
// This is for Credit Card Number - as we don't need value disregard result.
break;
case "Track1Data":
this.track1 = strVariableValue;
break;
case "Track2Data":
// Get previous event data sent and then clear them out
var swipeArgs = new CardSwipeEventArgs {
Track1 = this.track1, Track2 = strVariableValue, Track3 = string.Empty
};
this.CardSwipeEvent(this, swipeArgs);
break;
case "RetailCardType":
var typeArgs = new ButtonPressEventArgs();
typeArgs.ButtonName = strVariableValue;
typeArgs.IsCanceled = false;
this.ButtonPressEvent(this, typeArgs);
break;
case "CashBackAmt":
case "AmountOk":
var cashBackArgs = new ButtonPressEventArgs();
cashBackArgs.ButtonName = strVariableValue;
cashBackArgs.IsCanceled = false;
this.ButtonPressEvent(this, cashBackArgs);
break;
case "AdditionalSecurityInformation":
this.additionalSecInfo = strVariableValue;
break;
case "EncryptedPIN":
PinDataEventArgs pinArg = new PinDataEventArgs();
pinArg.IsCanceled = false;
pinArg.EncryptedPin = strVariableValue;
pinArg.AdditionalSecurity = this.additionalSecInfo;
this.PinDataEvent(this, pinArg);
this.additionalSecInfo = string.Empty;
break;
case "PinPadEntry":
// PIN entry "Cancel" or "TMO"
// PIN entry "Request" is set upon form entry (but no fire event)
PinDataEventArgs pinPadArg = new PinDataEventArgs();
pinPadArg.IsCanceled = true;
pinPadArg.EncryptedPin = string.Empty;
pinPadArg.AdditionalSecurity = string.Empty;
this.PinDataEvent(this, pinPadArg);
break;
case "sig":
string signature = string.Empty;
HydraSignatureEnhanced sig = new HydraSignatureEnhanced(Convert.FromBase64String(strVariableValue));
signature = Convert.ToBase64String(sig.ToByteArray());
SignatureEventArgs sigArgs = new SignatureEventArgs()
{
SignatureData = signature
};
this.SignatureEvent(this, sigArgs);
break;
default:
NetTracer.Information("L5300Terminal variable {0} not set to {1}", strVariableName, strVariableValue);
break;
}
}