private void ReceiveCallback(IAsyncResult result)
{
var currentResult = (result.AsyncState as KeyValuePair <int, Socket>?).GetValueOrDefault();
int received = -1;
try
{
received = currentResult.Value.EndReceive(result);
}
catch (SocketException)
{
}
var currentUser = GetUser(currentResult.Key);
var currentSocket = currentResult.Value;
if (received == -1)
{
currentSocket.Shutdown(SocketShutdown.Both);
ConnectedClients.RemoveAll(c => c.Socket.Equals(currentResult.Value));
ClientDisconnected?.Invoke(this, currentUser);
_serverSocket.BeginAccept(AcceptCallback, null);
return;
}
byte[] recBuf = new byte[received];
Array.Copy(_buffer, recBuf, received);
if (Received != null)
{
var responsePacket = new ResponsePacket();
try
{
var sentPacket = WrappedPacket.FromJson(Encoding.UTF8.GetString(recBuf)).GetPacket();
responsePacket.SentPacketData = JToken.FromObject(sentPacket);
responsePacket.SentPacketType = sentPacket.GetType().ToString();
}
catch
{
responsePacket.SentPacketData = JToken.FromObject(new
{
content = Encoding.UTF8.GetString(recBuf)
});
responsePacket.SentPacketType = typeof(JToken).ToString();
}
responsePacket.Accepted = Received.Invoke(this, currentUser, recBuf);
var wrappedPacket = new WrappedPacket()
{
PacketType = responsePacket.GetType().ToString(),
PacketData = JObject.FromObject(responsePacket)
};
currentResult.Value.Send(Encoding.UTF8.GetBytes(JObject.FromObject(wrappedPacket).ToString()));
}
currentResult.Value.BeginReceive(_buffer, 0, _bufferSize, SocketFlags.None, ReceiveCallback, currentResult);
}