/// <summary>
/// Reads the string representation from the specified <see cref="TextReader"/>.
/// </summary>
/// <param name="stream">
/// The <see cref="TextReader"/> to read from
/// </param>
/// <remarks>
/// The string representation is a sequence of <see cref="NetworkProtocol">network protocols</see>.
/// </remarks>
void Read(TextReader stream)
{
if (stream.Read() != '/')
{
throw new FormatException("An IFPS multiaddr must start with '/'.");
}
var name = new StringBuilder();
Protocols.Clear();
int c;
while (true)
{
name.Clear();
while (-1 != (c = stream.Read()) && c != '/')
{
name.Append((char)c);
}
if (name.Length == 0)
break;
if (!NetworkProtocol.Names.TryGetValue(name.ToString(), out Type protocolType))
throw new FormatException(string.Format("The IPFS network protocol '{0}' is unknown.", name.ToString()));
var p = (NetworkProtocol)Activator.CreateInstance(protocolType);
p.ReadValue(stream);
Protocols.Add(p);
}
if (Protocols.Count == 0)
throw new FormatException("The IFPS multiaddr has no protocol specified.");
}
public static void Clear()
{
MemoryCoordinator.Reset();
GpfProgramCompiler.Clear();
Protocols.Clear();
Kernels.Clear();
head = null;
}
/// <summary>
/// Will reset the device information and initialize with the info fromteh DeviceInstance
/// </summary>
/// <param name="pDev">DeviceInstance that has the EPR info</param>
public void ResetDevice(DeviceInstance pDev)
{
HostName = pDev.HostName;
Profile = pDev.Name;
Protocols.Clear();
foreach (ProtocolService _prot in pDev.ImplementedProtocolServices)
{
Protocols.Add(_prot.Protocol);
}
}
/// <summary>
/// Reads the binary representation of the specified <see cref="CodedInputStream"/>.
/// </summary>
/// <param name="stream">
/// The <see cref="CodedInputStream"/> to read from.
/// </param>
/// <remarks>
/// The binary representation is a sequence of <see cref="NetworkProtocol">network protocols</see>.
/// </remarks>
void Read(CodedInputStream stream)
{
Protocols.Clear();
do
{
uint code = (uint)stream.ReadInt64();
if (!NetworkProtocol.Codes.TryGetValue(code, out Type protocolType))
throw new InvalidDataException(string.Format("The IPFS network protocol code '{0}' is unknown.", code));
var p = (NetworkProtocol)Activator.CreateInstance(protocolType);
p.ReadValue(stream);
Protocols.Add(p);
} while (!stream.IsAtEnd);
}
/// <summary>
/// Reads the binary representation of the specified <see cref="Google.Protobuf.CodedInputStream"/>.
/// </summary>
/// <param name="stream">
/// The <see cref="Google.Protobuf.CodedInputStream"/> to read from.
/// </param>
/// <remarks>
/// The binary representation is a sequence of <see cref="NetworkProtocol">network protocols</see>.
/// </remarks>
private void Read(CodedInputStream stream)
{
Protocols.Clear();
do
{
var code = (uint)stream.ReadInt64();
if (!NetworkProtocol.Codes.TryGetValue(code, out var protocolType))
{
throw new InvalidDataException($"The IPFS network protocol code '{code}' is unknown.");
}
var p = (NetworkProtocol)Activator.CreateInstance(protocolType);
p.ReadValue(stream);
Protocols.Add(p);
} while (!stream.IsAtEnd);
}
public void Connect(SCardShareMode shareMode = SCardShareMode.Shared)
{
PCSCResult result;
// Are we already connected?
if (myHandle != IntPtr.Zero)
{
return;
}
// Establish a new session context for this card
result = NativeMethods.SCardEstablishContext(SCardScope.User, IntPtr.Zero, IntPtr.Zero, out myContext);
if (PCSCResult.None != result)
{
throw PCSCException.ThrowByResult(result);
}
// Connect to the card
result = NativeMethods.SCardConnect(myContext, myReaderName, shareMode, DefaultRequestedProtocols, ref myHandle, ref myCommsProtocol);
if (PCSCResult.None != result)
{
// Disconnect (this will gracefully handle the context release)
Disconnect();
throw PCSCException.ThrowByResult(result);
}
// Retrieve our ATR
byte[] readerName = new byte[255];
uint readerLen = 255;
SCardState state = 0;
SCardProtocol cardProtocol = 0;
uint atrLen = NativeMethods.SCARD_ATR_LENGTH;
byte[] atr = new byte[atrLen];
result = NativeMethods.SCardStatus(myHandle, readerName, ref readerLen, out state, out cardProtocol, atr, ref atrLen);
if (result != PCSCResult.None)
{
// Disconnect from the card
Disconnect();
throw PCSCException.ThrowByResult(result);
}
//
// Protocol Enumeration
//
try
{
// Add the default 7816 protocol
Protocols.Add(new PCSCIso7816Protocol(atr, this));
// Determine whether this card is contactless or not
if (SupportsIso14443)
{
// Replace the 7816 protocol with 14443
Protocols.Clear();
var protocol = new PCSCIso14443AProtocol(atr, this);
Protocols.Add(protocol);
// Create our OptionalCommands object
OptionalCommands = new PCSCOptionalCommands(protocol);
//
// HACK: Adding a PCSCMifareProtocol to all ISO14443 cards, what
// we should be doing is somehow determining if this card
// supports Mifare or Mifare emulation
//
Protocols.Add(new PCSCMifareProtocol(this));
}
}
catch (Exception)
{
// Disconnect from the card
Disconnect();
throw PCSCException.ThrowUnsupportedProtocol();
}
}
/// <summary>
/// Utility method that clears the protocol and profile fields - basically making the EPR Instance appear idle
/// or as it would be if it was idle.
/// </summary>
public void ClearDevice()
{
Protocols.Clear();
Profile = NOPROFILE;
}
