public SmartCard(IPinServiceFactory pinServiceFactory)
{
_smartCardState = new DefaultSmartCardState();
_smartCardState.Authenticated += smartCardState_Authenticated;
_smartCardState.Connected += smartCardState_Connected;
_smartCardState.Transmitting += SmartCardState_Transmitting;
_pinServiceFactory = pinServiceFactory;
}
private IResult RequestReset(ISmartCardState smartCardState, ISmartCardData smartCardData)
{
if (!IsAuthenticated(smartCardState, smartCardData))
{
return(SmartCardResult
.CreateError(Result.StripeResetRejected));
}
smartCardState.Stripe = Array.Empty <char>();
return(SmartCardResult
.Create(Pin.Acknowledge, Code.Accepted, Result.StripeResetCompleted));
}
public virtual IResult Handle(Code code, ISmartCardState smartCardState, ISmartCardData cardData)
{
var action = PinServiceHandleSwitch.Case(code);
if (action == null)
{
return(SmartCardResult
.CreateError(Result.UndeterminedResult, Code.Error));
}
return(action.Invoke(smartCardState, cardData));
}
private IResult Connect(ISmartCardState smartCardState, ISmartCardData smartCardData)
{
if (!IsAuthenticated(smartCardState, smartCardData))
{
return(SmartCardResult.CreateError(Result.Unauthorised, Code.Rejected));
}
if (smartCardState.IsConnected)
{
return(SmartCardResult.CreateError(Result.AlreadyConnected, Code.Rejected));
}
smartCardState.IsConnected = true;
return(SmartCardResult.Create(Pin.Acknowledge, Code.Accepted, Result.Connected));
}
private IResult BeginTransmit(ISmartCardState smartCardState, ISmartCardData smartCardData)
{
if (!IsAuthenticated(smartCardState, smartCardData))
{
return(SmartCardResult.CreateError(Result.Unauthorised, Code.Rejected));
}
if (smartCardState.IsTransmitting)
{
return(SmartCardResult.CreateError(Result.RecieveFailure, Code.Denied));
}
smartCardState.IsTransmitting = true;
return(SmartCardResult.Create(Pin.Acknowledge, Code.Accepted, Result.TransmissionEnded));
}
private IResult BinaryTransmit(ISmartCardState smartCardState, ISmartCardData smartCardData)
{
if (!IsAuthenticated(smartCardState, smartCardData))
{
return(SmartCardResult.CreateError(Result.Unauthorised, Code.Rejected));
}
if (!smartCardState.IsTransmitting)
{
return(SmartCardResult.CreateError(Result.RecieveFailure, Code.Denied));
}
smartCardState.Transmission = smartCardState.Transmission.Append(smartCardData.Data);
return(SmartCardResult.Create(Pin.Acknowledge, Code.Accepted, Result.ContinueTransmission));
}
private IResult Authenticate(ISmartCardState smartCardState, ISmartCardData smartCardData)
{
if (IsAuthenticated(smartCardState, smartCardData) ||
(smartCardState.Stripe != null && smartCardState.Stripe.Any()))
{
return(SmartCardResult.CreateError(Result.AlreadyAuthenticated));
}
if (smartCardState.IsConnected)
{
return(SmartCardResult.CreateError(Result.AlreadyConnected, Code.Rejected));
}
smartCardState.Stripe = smartCardData.Stripe;
return(SmartCardResult
.Create(Pin.Acknowledge, Code.Accepted, Result.AuthenticationSucceeded));
}
public static SmartCardEventArgs Create(ISmartCardState state, object stateResult = default)
{
return(new SmartCardEventArgs(state, stateResult));
}
private SmartCardEventArgs(ISmartCardState state, object stateResult)
{
State = state;
StateResult = stateResult;
}
private IResult DataTransmit(ISmartCardState smartCardState, ISmartCardData smartCardData)
{
return(BinaryTransmit(smartCardState, smartCardData));
}
protected static bool IsAuthenticated(ISmartCardState smartCardState, ISmartCardData smartCard)
{
return(smartCardState.Stripe != null &&
smartCardState.Stripe.SequenceEqual(smartCard.Stripe));
}
