public void Talk(ChatMessage message) {
if (_ns == null || !_ns.CanWrite) {
return;
}
var bytes = message.ToBytes();
_ns.Write(bytes, 0, bytes.Length);
}
public static ChatMessage FromBytes(byte[] bytes)
{
var ret = new ChatMessage();
using (var stream = new MemoryStream(bytes))
using (var reader = new BinaryReader(stream, Encoding.UTF8)) {
ret.Command = (Commands)reader.ReadInt16();
ret.Sender = reader.ReadString();
ret.Body = reader.ReadString();
var iconLength = reader.ReadInt32();
if (iconLength > 0) {
ret.Icon = reader.ReadBytes(iconLength);
}
}
return ret;
}
public MessageReceivedEventArgs(ChatMessage message)
{
Message = message;
}
private void HandleClient(Object state) {
using (var client = _listener.AcceptTcpClient())
using (var ns = client.GetStream()) {
if (ns.CanTimeout) {
ns.ReadTimeout = Timeout * 1000;
ns.WriteTimeout = Timeout * 1000;
}
var endPoint = client.Client.RemoteEndPoint as IPEndPoint;
var clientAddress = endPoint != null ?
endPoint.Address.ToString() + ":" + endPoint.Port.ToString() :
null;
Message = "Connected: " + clientAddress;
try {
var isDisconnected = false;
while (!isDisconnected &&
client.GetState() == TcpState.Established &&
_listener.Active) {
Thread.Sleep(100);
if (!ns.DataAvailable) {
continue;
}
ChatMessage message = new ChatMessage();
using (var ms = new MemoryStream()) {
var receiveBuffer = new byte[BufferSize];
do {
var receiveSize = ns.Read(receiveBuffer, 0, receiveBuffer.Length);
if (receiveSize == 0) {
isDisconnected = true;
break;
}
ms.Write(receiveBuffer, 0, receiveSize);
} while (ns.DataAvailable);
if (!isDisconnected) {
message = ChatMessage.FromBytes(ms.GetBuffer());
}
}
var response = this.NotifyMessageReceived(message);
if (!isDisconnected) {
var bytes = response.ToBytes();
ns.Write(bytes, 0, bytes.Length);
}
}
}
catch (Exception ex) {
var socketException = ex.InnerException as SocketException;
var message = socketException == null ?
ex.GetAllMessages() :
((SocketError)socketException.ErrorCode).ToString() + ": " + clientAddress;
Message = message;
}
Message = "Disconnected: " + clientAddress;
}
}
public static ChatMessage NotifyMessageReceived(this INotifyMessageReceived sender, ChatMessage message)
{
var e = new MessageReceivedEventArgs(message);
sender.NotifyMessageReceived(e);
return e.Response;
}