/// <summary>
/// Will try to connect to _connectedReader and read the card.
/// </summary>
/// <returns>Either the data from the card or the error message. Or if 'uidOnly' is true, just the UID prefixed with 'UID^' and ending with '^'</returns>
public string ReadCard(bool uidOnly = false)
{
SCardContext context = new SCardContext();
context.Establish(SCardScope.System);
SCardReader reader = new SCardReader(context);
SCardError result = reader.Connect(_connectedReader, SCardShareMode.Shared, SCardProtocol.Any);
if (result != SCardError.Success)
{
context.Dispose();
reader.Dispose();
return(string.Format("No card is detected (or reader reserved by another application){0}{1}",
Environment.NewLine, SCardHelper.StringifyError(result)));
}
string[] readerNames; SCardProtocol protocol; SCardState state; byte[] atr;
result = reader.Status(out readerNames, out state, out protocol, out atr);
if (result != SCardError.Success)
{
context.Dispose();
reader.Dispose();
return(string.Format("Unable to read from card.{0}{1}", Environment.NewLine, SCardHelper.StringifyError(result)));
}
string message = string.Format("Card detected:{0}Protocol: {1}{0}State: {2}{0}ATR: {3}{0}",
Environment.NewLine, protocol, state, BitConverter.ToString(atr ?? new byte[0]));
CommandApdu apdu = new CommandApdu(IsoCase.Case2Short, reader.ActiveProtocol)
{
CLA = 0xFF,
Instruction = InstructionCode.GetData,
P1 = 0x00,
P2 = 0x00,
Le = 0
};
result = reader.BeginTransaction();
if (result != SCardError.Success)
{
context.Dispose();
reader.Dispose();
return(string.Format("Cannot start transaction.{0} {1}", Environment.NewLine, SCardHelper.StringifyError(result)));
}
SCardPCI recievePci = new SCardPCI();
IntPtr sendPci = SCardPCI.GetPci(reader.ActiveProtocol);
byte[] recieveBuffer = new byte[256];
result = reader.Transmit(sendPci, apdu.ToArray(), recievePci, ref recieveBuffer);
if (result != SCardError.Success)
{
context.Dispose();
reader.Dispose();
return(string.Format("Cannot transmit data.{0} {1}", Environment.NewLine, SCardHelper.StringifyError(result)));
}
var responseApdu = new ResponseApdu(recieveBuffer, IsoCase.Case2Short, reader.ActiveProtocol);
message += string.Format("SW1: {1}{0}SW2: {2}{0}", Environment.NewLine, responseApdu.SW1, responseApdu.SW2);
string data = responseApdu.HasData ? BitConverter.ToString(responseApdu.GetData()) : "--";
if (uidOnly)
{
context.Dispose();
reader.Dispose();
return(string.Format("UID^{0}^", data));
}
message += string.Format("UID: {0}", data);
reader.EndTransaction(SCardReaderDisposition.Leave);
reader.Disconnect(SCardReaderDisposition.Reset);
context.Dispose();
reader.Dispose();
return(message);
}
// thread to monitor nfc reader
private void ScanForId()
{
Log("NFC Reading started");
//Thread.Sleep(10000);
List <string> currentTokens = new List <string>();
SCardContext sCardContext = new SCardContext();
SerialContext serialContext = new SerialContext();
// basically keep running until we're told to stop
while (state == ServiceState.Starting || state == ServiceState.Running)
{
// start dll and just call it
//IntPtr idloc = Marshal.AllocHGlobal(100);
//IntPtr errloc = Marshal.AllocHGlobal(100);
//int len = PCSC_GetID(idloc, errloc);
//string error = Marshal.PtrToStringAnsi(errloc);
//string id = "";
//if(len > 0)
// id = Marshal.PtrToStringAnsi(idloc, len);
////else
//// Log("Read error: " + error);
//Marshal.FreeHGlobal(idloc);
//Marshal.FreeHGlobal(errloc);
List <string> ls = sCardContext.GetIds();
ls = ls.Concat(serialContext.GetIds()).ToList();
foreach (string id in ls)
{
//string id = ls.FirstOrDefault() ?? "";
// check the id of the token
if (!currentTokens.Contains(id) && id != "")
{
Log("NFCTagDownEvent");
// we just got a new token (state change)
// load parameters from config
if (SystemStatus.AwaitingToken)
{
// this is where we capture it and show the next screen
if (SystemStatus.RegistrationClient != null)
{
TcpClient c = SystemStatus.RegistrationClient;
ServiceCommunication.SendNetworkMessage(ref c, JsonConvert.SerializeObject(new NetworkMessage()
{
Type = MessageType.Token, Token = id
}));
SystemStatus.RegistrationClient = c;
}
}
else
{
// check config
foreach (User u in ApplicationConfiguration.Users)
{
string hashedToken = Crypto.Hash(Crypto.Hash(id) + u.Salt);
foreach (Event e in u.Events)
{
if (hashedToken == e.Token)
{
foreach (Lazy <INFCRingServicePlugin> plugin in plugins)
{
if (plugin.Value.GetPluginName() == e.PluginName)
{
plugin.Value.NCFRingDown(id, e.Parameters, SystemStatus);
Log("Plugin " + plugin.Value.GetPluginName() + " passed TagDown event");
}
}
}
}
}
}
}
currentTokens.Remove(id);
}
foreach (string id in currentTokens)
{
Log("NFCTagUpEvent");
// we just lost the token (state change)
if (SystemStatus.AwaitingToken)
{
// they just lifted it. reset this
SystemStatus.AwaitingToken = false;
}
else
{
// check config
foreach (User u in ApplicationConfiguration.Users)
{
string hashedToken = Crypto.Hash(Crypto.Hash(id) + u.Salt);
foreach (Event e in u.Events)
{
if (hashedToken == e.Token)
{
foreach (Lazy <INFCRingServicePlugin> plugin in plugins)
{
if (plugin.Value.GetPluginName() == e.PluginName)
{
plugin.Value.NCFRingUp(id, e.Parameters, SystemStatus);
Log("Plugin " + plugin.Value.GetPluginName() + " passed TagUp event");
}
}
}
}
}
}
}
currentTokens = ls;
// sleep for configured delay?
Thread.Sleep(100);
}
serialContext.Stop();
Log("NFC Reading stopped");
}
// Create new SCardContext then connect, and read data+photo from card
public bool ReadCard()
{
try
{
_context = new SCardContext();
_context.Establish(SCardScope.System);
_cardReader = new SCardReader(_context);
Console.WriteLine("Connection was establish");
var readers = _context.GetReaders();
if (readers == null)
{
MonitorStop();
ReleaseContext();
return(false);
}
// this will invoke StatusChanged with NewState 'SCRState.Exclusive'. so, handle it carefully
_err = _cardReader.Connect(readers.First(),
SCardShareMode.Exclusive,
SCardProtocol.T0 | SCardProtocol.T1);
SetIntPtr(_cardReader.ActiveProtocol);
Console.WriteLine("Card Reading.");
Console.WriteLine("Check Card Error => " + _err);
Console.WriteLine("Check Card Support => " + IsThailandSupportCard());
//Console.WriteLine(IsThailandSupportCard());
if (_err == SCardError.Success && IsThailandSupportCard())
{
Personal personal = new Personal();
Console.WriteLine("inside if");
if (eventBeforeCardInserted != null)
{
eventBeforeCardInserted();
}
// Send SELECT/RESET command
SendCommand(_apdu.CMD_SELECT());
// CID
personal.Citizenid = GetUTF8FromAsciiBytes(SendCommand(_apdu.CMD_CID()));
id = personal.Citizenid;
// Fullname Thai + Eng + BirthDate + Sex
personal.Info = GetUTF8FromAsciiBytes(SendCommand(_apdu.CMD_PERSON_INFO()));
// Address
personal.Address = GetUTF8FromAsciiBytes(SendCommand(_apdu.CMD_ADDRESS()));
// issue/expire
personal.Issue_Expire = GetUTF8FromAsciiBytes(SendCommand(_apdu.CMD_CARD_ISSUE_EXPIRE()));
// get Photo
personal.PhotoRaw = SendPhotoCommand();
if (personal.PhotoRaw == null)
{
for (int i = 0; i < 3; i++)
{
Console.WriteLine("try to read photo attemp => " + (i + 1));
personal.PhotoRaw = SendPhotoCommand();
if (personal.PhotoRaw != null)
{
break;
}
}
}
Console.WriteLine("Read complete.");
if (eventCardInserted != null)
{
eventCardInserted(personal);
}
return(true);
}
return(false);
}
catch (PCSCException ex)
{
_error_code = ECODE_SCardError;
_error_message = "Err: " + ex.Message + " (" + ex.SCardError.ToString() + ")";
Console.WriteLine(_error_message);
Console.WriteLine("Cant Read");
if (eventCardReadError != null)
{
eventCardReadError(_error_message);
}
return(false);
}
finally
{
ReleaseContext();
}
}
