private void OnTcpPacketAssembled(Socket sender, byte[] buffer, int offset, int size)
{
lock (this) {
if (_closed)
{
return;
}
DoubleServerClient client = _tcpClients[sender];
_receiveBuffer.SetContents(buffer, offset, size);
if (client.State == ClientState.TcpAuthenticating)
{
if (_handler.TcpAuthenticateClient(client, _receiveBuffer, out byte[] encryptionKey, out byte errorCode))
/// <summary>
/// Sends the specified payload over TCP to the specified client.
/// </summary>
/// <param name="recipient">The client in question.</param>
/// <param name="payloadWriter">The action which writes the payload to a buffer.</param>
public void SendTcp(IDoubleServerClient recipient, Action <BitBuffer> payloadWriter)
{
lock (this) {
if (_closed)
{
return;
}
DoubleServerClient client = (DoubleServerClient)recipient;
SendEncryptedLengthPrefixOnlyTcp(client.TcpSocket, client.EncryptionKey, buffer => {
buffer.Write(client.NextSendSequenceId());
payloadWriter(buffer);
});
}
}
/// <summary>
/// Sends the specified payload over UDP to the specified client.
/// </summary>
/// <param name="recipient">The client in question.</param>
/// <param name="payloadWriter">The action which writes the payload to a buffer.</param>
public void SendUdp(IDoubleServerClient recipient, Action <BitBuffer> payloadWriter)
{
lock (this) {
if (_closed)
{
return;
}
DoubleServerClient client = (DoubleServerClient)recipient;
using (_sendBuffer) {
UdpHelper.WritePrefix(_sendBuffer, client.ConnectionStartTimestamp, payloadWriter);
byte[] encrypted = _crypto.Encrypt(client.EncryptionKey, _sendBuffer.Array, 0, _sendBuffer.Size);
_udp.Send(client.UdpEndPoint, encrypted, 0, encrypted.Length);
}
}
}
private void OnTcpConnected(Socket socket)
{
lock (this) {
if (_closed)
{
return;
}
DoubleServerClient client = new DoubleServerClient(socket);
_tcpClients.Add(socket, client);
Task.Delay(TcpAuthenticationTimeout).ContinueWith(task => {
lock (this) {
if (client.State == ClientState.TcpAuthenticating)
{
Disconnect(client);
}
}
});
}
}
/// <summary>
/// Kicks a specific client.
/// </summary>
/// <param name="client">The client in question.</param>
public void Disconnect(IDoubleServerClient client)
{
lock (this) {
if (_closed)
{
return;
}
DoubleServerClient impl = (DoubleServerClient)client;
impl.Disconnected();
_tcpClients.Remove(impl.TcpSocket);
_tcp.Disconnect(impl.TcpSocket);
if (impl.UdpEndPoint != null)
{
_udpClients.Remove(impl.UdpEndPoint);
}
if (impl.State != ClientState.TcpAuthenticating && _authenticatedCount-- == _maxAuthenticatedCount)
{
_tcp.StartAccepting();
}
}
}