public void ExtractInfoHash()
{
Bencoder bc = new Bencoder();
MnlMessage msg = new MnlMessage
.Builder(ParseTest.ConvertHexStringToByteArray("64313a6164323a696432303a7200ee612a3d17f22d721a8019317eb27c7039c9393a696e666f5f6861736832303af6ef92f7cfa792c050fef70c405ded104771553d363a6e6f7365656469316565313a71393a6765745f7065657273313a74343a9b9427a4313a76343a5554ab14313a79313a7165"))
.Build();
MnlMessage myMsg = new MnlMessage
.Builder(ParseTest.ConvertHexStringToByteArray("64313a74323a3032313a79313a71313a71393a6765745f7065657273313a6164323a696432303a09dc0cea8478d7f285ef674c6a2f931ae3b603f4393a696e666f5f6861736832303a3f4f40163040223f3f063f3a562f603e3f543f3f6565"))
.Build();
Dictionary <string, object> decoded = (Dictionary <string, object>)bc.DecodeElement(ParseTest.ConvertHexStringToByteArray("64313a6164323a696432303ab2dfb21aa9b31c00cdca99bcd9232a7facbc76e2393a696e666f5f6861736832303aa44f7b0766a4e53ebfc0cf79fa9c82778b88d94765313a71393a6765745f7065657273313a74343a67707588313a79313a7165"));
Dictionary <string, object> decodedMy = (Dictionary <string, object>)bc.DecodeElement(ParseTest.ConvertHexStringToByteArray("64313a74323a3034313a79313a71313a71393a6765745f7065657273313a6164323a696432303ae36f5d8ef6928691d9696e02d025e3b8f1a08ca2393a696e666f5f6861736832303a139f69de76a07790ec3ad31cbc3bd5d9058716006565"));
var infoHash = Encoding.UTF8.GetBytes((string)((Dictionary <string, object>)decoded["a"])["info_hash"]);
var bytes = ParseTest.ConvertHexStringToByteArray("3F4F40163040223F3F063F3A562F603E3F543F3F");
//CollectionAssert.AreEqual(infoHash, bytes);
SoapHexBinary hex = new SoapHexBinary(infoHash);
Debug.WriteLine($"Info hash: {hex.ToString()} ");
}
private void ListenIncoming(Node ownerNode)
{
while (!_stopped)
{
try {
IPEndPoint incomingIpEndPoint = new IPEndPoint(IPAddress.Any, EndPoint.Port);
byte[] rawMsg = _udpClient.Receive(ref incomingIpEndPoint);
if (!IsLegitMnlDhtMessage(rawMsg))
{
continue;
}
Message.MnlMessage incomingMsg = null;
try {
incomingMsg = new Message.MnlMessage.Builder(rawMsg).Build();
} catch (Bittorrent.InvalidFieldException ife) {
MnlMessage errMessage = new MnlMessage.Builder()
.SetTranId(GenerateTranId())
.SetType(MessageType.Error)
.SetErrorCode(ErrorType.ProtocolError)
.SetErrorMessage(ife.Message)
.Build();
Debug.WriteLine($"Sending incorrect field message {ife.Message}");
SendMessage(incomingIpEndPoint, errMessage);
continue;
} catch (MalformedPacketException mpe) {
MnlMessage errMessage = new MnlMessage.Builder()
.SetTranId(GenerateTranId())
.SetType(MessageType.Error)
.SetErrorCode(ErrorType.ProtocolError)
.SetErrorMessage(mpe.Message)
.Build();
Debug.WriteLine($"Sending malformed packet message {mpe.Message}");
SendMessage(incomingIpEndPoint, errMessage);
continue;
}
ulong msgIdx = GetMessageId(incomingIpEndPoint.Address, BitConverter.ToUInt16(Encoding.ASCII.GetBytes(incomingMsg.TranId.PadLeft(2, '\0')), 0));
if (_messages.ContainsKey(msgIdx))
{
PendingMnlMessage rqMsg;
if (_messages.TryRemove(msgIdx, out rqMsg))
{
if (incomingMsg.Type == MessageType.Error)
{
Debug.WriteLine($"Recieved error {incomingMsg.ErrorMessage}");
switch (incomingMsg.ErrorCode)
{
case ErrorType.ProtocolError:
case ErrorType.MethodUnknown:
Debug.WriteLine($"!!!Error {incomingMsg.ErrorMessage}");
break;
default:
continue;
}
}
if (rqMsg.ValidateId)
{
if (rqMsg.RecipientId != incomingMsg.OriginatorId)
{
Debug.WriteLine($"Node {incomingIpEndPoint} id mismatch!");
OnMaliciousMessage?.Invoke(incomingIpEndPoint, rqMsg.RecipientId, rqMsg.SentMessage);
continue;
}
}
rqMsg.SentMessage.SetResponse(incomingMsg);
}
}
else
{
if (incomingMsg.Type == MessageType.Query)
{
ownerNode.ProcessQuery(incomingMsg, incomingIpEndPoint);
}
}
} catch (SocketException se) {
if (se.SocketErrorCode != SocketError.Interrupted)
{
throw;
}
}
}
}