CombinationSelection_FromB(CardQProcessor cardInterfaceManager,
Tuple <EMVTerminalProcessingOutcome, EMVSelectApplicationResponse, TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> lastCandidateSelected,
List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> > candidates,
IUICallbackProvider uiProvider)
{
return(CombinationSelection_FromA(cardInterfaceManager, uiProvider));
}
public EMVTxCtl()
{
InitializeComponent();
QRMetaDataSourceSingleton.Instance.DataSource = new EMVQRMetaDataSource();
TLVMetaDataSourceSingleton.Instance.DataSource = new EMVTLVMetaDataSource();
uiProvider = new UICallbackProvider(ContactApp_DisplayAppsOnCard);
totalAmount = new TotalAmountViewModel();
totalAmount.Total = "";
txtAmount.BindingContext = totalAmount;
lblTotal.BindingContext = totalAmount;
totalAmount.Total = "1000";
//if(!String.IsNullOrEmpty(totalAmount.Total))
//{
// CmdNextToPaymentApp_Clicked(null,null);
//}
//else
//{
lblStatusAskAmount.Text = "Enter the amount below";
//}
}
public EMVContactTerminalApplication(CardQProcessor cardQProcessor, IConfigurationProvider configProvider, IUICallbackProvider uiProvider)
: base(cardQProcessor, configProvider)
{
this.uiProvider = uiProvider;
}
CombinationSelection_FromA(CardQProcessor cardInterfaceManager, IUICallbackProvider uiProvider)
{
List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> > candidates = new List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> >();
#region 12.3.2 Book1 12.2.2 and 12.3.2 Step 1
EMVSelectPPSEResponse responsePPSE = SelectPSEApplication(cardInterfaceManager);
//card blocked
if (responsePPSE.SW1 == 0x6A && responsePPSE.SW2 == 0x81)
{
return(Tuple.Create(
new EMVTerminalProcessingOutcome()
{
NextProcessState = EMVTerminalPreProcessingStateEnum.EndProcess,
UIRequestOnOutcomePresent = true,
UserInterfaceRequest = new UserInterfaceRequest()
{
MessageIdentifier = MessageIdentifiersEnum.InsertSwipeOrTryAnotherCard, Status = StatusEnum.ReadyToRead
},
UIRequestOnRestartPresent = false,
}, (EMVSelectApplicationResponse)null, (TerminalSupportedKernelAidTransactionTypeCombination)null, (CardKernelAidCombination)null,
(List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> >)null));
}
#endregion
//cards supports selection by PSE
if (responsePPSE.Succeeded && responsePPSE.GetSFI_88() != null)
{
#region 12.3.2 12.3.2 Book1 Step 2
TLVList records = ReadAllPSERecords(responsePPSE.GetSFI_88(), cardInterfaceManager);
#endregion
//do matching
#region 12.3.2 Book1 12.3.2 Step 3
candidates = CreateCandidateListFromPSERecords(records);
#endregion
#region 12.3.2 Book1 Step 4 and 5
if (candidates.Count != 0)
{
return(ProcessCandidates(cardInterfaceManager, candidates, uiProvider));
}
#endregion
}
candidates = CreateCandidateListByDirMethod(cardInterfaceManager);
if (candidates.Count == 0)
{
return(Tuple.Create(
new EMVTerminalProcessingOutcome()
{
NextProcessState = EMVTerminalPreProcessingStateEnum.EndProcess,
UIRequestOnOutcomePresent = true,
UserInterfaceRequest = new UserInterfaceRequest()
{
MessageIdentifier = MessageIdentifiersEnum.TryAnotherCard, Status = StatusEnum.ReadyToRead
},
UIRequestOnRestartPresent = false,
}, (EMVSelectApplicationResponse)null, (TerminalSupportedKernelAidTransactionTypeCombination)null, (CardKernelAidCombination)null,
(List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> >)null));
}
return(ProcessCandidates(cardInterfaceManager, candidates, uiProvider));
}
CandidatesPrioritizeAndPromptUser(List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> > candidateList, IUICallbackProvider uiProvider)
{
if (candidateList.Count == 1)
{
#region 12.3.2 Book1 12.4 Step 2
if ((candidateList.ElementAt(0).Item2.ApplicationPriorityIndicatorTag.Value[0] & 0x80) == 0x00)
{
return(Optional <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> > .Create(new Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination>(candidateList.ElementAt(0).Item1, candidateList.ElementAt(0).Item2)));
}
#endregion
}
#region 12.3.2 Book1 12.4 Step 4
List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> > filteredNoZero = candidateList.Where(x =>
{
if (x.Item2.ApplicationPriorityIndicatorTag != null)
{
if ((x.Item2.ApplicationPriorityIndicatorTag.Value[0] & 0x0F) != 0x00) //0 = no priority
{
return(true);
}
else
{
return(false);
}
}
else
{
return(false);
}
}).OrderBy(y => y.Item2.ApplicationPriorityIndicatorTag.Value[0] & 0x0F).ToList();
List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> > filteredZero = candidateList.Where(x =>
{
if (x.Item2.ApplicationPriorityIndicatorTag == null)
{
return(true);
}
else
if ((x.Item2.ApplicationPriorityIndicatorTag.Value[0] & 0x0F) == 0x00)
{
return(true);
}
else
{
return(false);
}
}).ToList();
List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> > result = new List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> >();
result.AddRange(filteredNoZero);
result.AddRange(filteredZero);
#endregion
#region 12.3.2 Book1 12.4 Step 3
return(AskCardHolderToSelect(result, uiProvider));
#endregion
}
private static Optional <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> > AskCardHolderToSelect(List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> > candidateList, IUICallbackProvider uiProvider)
{
List <String> candidatesStrings = candidateList.Select(x => Formatting.ByteArrayToASCIIString(x.Item2.ApplicationLabel.Value) + ":" + Formatting.ByteArrayToHexString(x.Item2.AdfNameTag.Value)).ToList();
String selected = uiProvider.DisplayApplicationList(candidatesStrings);
if (!string.IsNullOrEmpty(selected))
{
Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> selectedTuple =
candidateList.Where(x => Formatting.ByteArrayToHexString(x.Item2.AdfNameTag.Value) == selected).First();
return(Optional <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> > .Create(selectedTuple));
}
else
{
return(Optional <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> > .CreateEmpty());
}
}
ProcessCandidates(CardQProcessor cardInterfaceManager,
List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> >
candidates, IUICallbackProvider uiProvider)
{
if (candidates.Count == 0)
{
return(Tuple.Create(
new EMVTerminalProcessingOutcome()
{
NextProcessState = EMVTerminalPreProcessingStateEnum.EndProcess,
UIRequestOnOutcomePresent = true,
UserInterfaceRequest = new UserInterfaceRequest()
{
MessageIdentifier = MessageIdentifiersEnum.InsertSwipeOrTryAnotherCard, Status = StatusEnum.ReadyToRead
},
UIRequestOnRestartPresent = false,
}, (EMVSelectApplicationResponse)null, (TerminalSupportedKernelAidTransactionTypeCombination)null, (CardKernelAidCombination)null,
(List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> >)null));
}
BackToStep3:
//prioritize if more than 1 candidate
Optional <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> > candidate = CandidatesPrioritizeAndPromptUser(candidates, uiProvider);
if (!candidate.IsPresent())
{
return(Tuple.Create(
new EMVTerminalProcessingOutcome()
{
NextProcessState = EMVTerminalPreProcessingStateEnum.EndProcess,
UIRequestOnOutcomePresent = true,
UserInterfaceRequest = new UserInterfaceRequest()
{
MessageIdentifier = MessageIdentifiersEnum.InsertSwipeOrTryAnotherCard, Status = StatusEnum.ReadyToRead
},
UIRequestOnRestartPresent = false,
}, (EMVSelectApplicationResponse)null, (TerminalSupportedKernelAidTransactionTypeCombination)null, (CardKernelAidCombination)null,
(List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> >)null));
}
//select the application
Tuple <EMVTerminalProcessingOutcome,
EMVSelectApplicationResponse,
TerminalSupportedKernelAidTransactionTypeCombination> result = SelectAppChosen(cardInterfaceManager, candidate.Get().Item1, candidate.Get().Item2);
if (result.Item1.NextProcessState == EMVTerminalPreProcessingStateEnum.CombinationSelection_StartC)
{
candidates.Remove(candidate.Get());
if (candidates.Count == 0)
{
return(Tuple.Create(
new EMVTerminalProcessingOutcome()
{
NextProcessState = EMVTerminalPreProcessingStateEnum.EndProcess,
UIRequestOnOutcomePresent = true,
UserInterfaceRequest = new UserInterfaceRequest()
{
MessageIdentifier = MessageIdentifiersEnum.InsertSwipeOrTryAnotherCard, Status = StatusEnum.ReadyToRead
},
UIRequestOnRestartPresent = false,
}, (EMVSelectApplicationResponse)null, (TerminalSupportedKernelAidTransactionTypeCombination)null, (CardKernelAidCombination)null,
(List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> >)null));
}
else
{
goto BackToStep3;
}
}
return(Tuple.Create(result.Item1, result.Item2, result.Item3, candidate.Get().Item2, candidates));
}
CombinationSelection_FromC(CardQProcessor cardInterfaceManager, List <Tuple <TerminalSupportedKernelAidTransactionTypeCombination, CardKernelAidCombination> > candidates, IUICallbackProvider uiProvider)
{
return(ProcessCandidates(cardInterfaceManager, candidates, uiProvider));
}
