public void RecieveResponse()
{
try
{
byte[] response = new byte[Constants.MaxMessageSize];
var bytesReceived = Socket.Receive(response);
if (bytesReceived == 0)
{
HandleDisconnect("0 bytes read. Disconnected");
return;
}
var trimmedResponse = response.Take(bytesReceived);
TemporaryReceiveBuffer.AddRange(trimmedResponse);
PeerEventData peerEventData;
do
{
var peerEventDataWrapper = PeerEventDataFactory.TryParsePeerEventDataFromEnumerable(TemporaryReceiveBuffer);
TemporaryReceiveBuffer = peerEventDataWrapper.UnusedBytes.ToList(); //Store unused bytes for later use
peerEventData = peerEventDataWrapper.EventData;
HandlePeerEvent(peerEventData);
}while (TemporaryReceiveBuffer.Count != 0 && peerEventData.EventStatus == PeerEventStatus.Ok);
}
catch (Exception ex)
{
HandleDisconnect(ex.Message);
}
}
public bool TryInitiateHandsake()
{
var peerHandshake = new PeerHandshake(Constants.HandshakeProtocolIdentifier, InfoHash, PeerId);
try
{
Socket.Send(peerHandshake.ToHandshakeBytes());
byte[] response = new byte[Constants.MaxMessageSize];
var bytesReceived = Socket.Receive(response);
if (bytesReceived == 0)
{
return(false);
}
var handshakeContent = new PeerHandshake(response.Take(bytesReceived).ToArray());
if (!InfoHash.SequenceEqual(handshakeContent.InfoHash))
{
return(false);
}
var totalHandshakeBytes = handshakeContent.Length + handshakeContent.Reserved.Length + 1 +
handshakeContent.InfoHash.Length + handshakeContent.PeerId.Length;
var leftovers = response.Skip(totalHandshakeBytes).Take(bytesReceived - totalHandshakeBytes);
TemporaryReceiveBuffer.AddRange(leftovers);
return(true);
}
catch
{
return(false);
}
}
