private DateTime SendHeartbeat()
{
TcpIO.WriteStream(client.GetStream(), new Message()
{
MessageType = MessageType.Heartbeat
});
return(DateTime.Now);
}
public void WriteMessage(Message message)
{
if (State == ConnectionState.Alive || State == ConnectionState.Authenticating)
{
try
{
TcpIO.WriteStream(client.GetStream(), message);
} catch (Exception e)
{
//Logger.GetInstance().NewInfoLine($"Failed to send info to: {Name}");
}
}
}
private Message ReadClient(TcpClient client)
{
try
{
Message message = TcpIO.ReadStream(client.GetStream());
//if (message != null)
// Logger.GetInstance().NewInfoLine(message.ToDebugString());
return(message);
} catch (Exception e)
{
return(null);
}
}
public void SendMessage(string message, string receiver, MessageReceiver receiverType)
{
NetworkStream stream = client.GetStream();
Message msgObject = new Message()
{
MessageType = MessageType.ChatMessage,
ReceiverType = receiverType,
ReceiverName = receiver,
SenderName = Name,
Text = message
};
TcpIO.WriteStream(stream, msgObject);
}
private bool LogInAs(string name)
{
try
{
client = new TcpClient(IP.ToString(), Port);
} catch
{
return(false);
}
//client.LingerState.Enabled = true;
//client.LingerState.LingerTime = 0;
//Debug.WriteLine($"Connected: {client.Connected}");
Message logInMessage = new Message()
{
MessageType = MessageType.LoginInformation,
ReceiverType = MessageReceiver.User,
ReceiverName = null,
SenderName = name,
Text = $"My port is: {client.Client.LocalEndPoint.ToString()}"
};
TcpIO.WriteStream(client.GetStream(), logInMessage);
Message response = null;
Debug.WriteLine("Started login...");
Stopwatch waitingForResponse = Stopwatch.StartNew();
while (response == null && waitingForResponse.Elapsed.TotalSeconds < 3)
{
response = TcpIO.ReadStream(client.GetStream());
Thread.Yield();
}
waitingForResponse.Stop();
Debug.WriteLine("Login-response received!");
if (response.MessageType == MessageType.LoginInformation &&
response.ReceiverName == name)
{
return(true);
}
else
{
return(false);
}
}
private bool AuthenticateClient(TcpClient client)
{
Logger.GetInstance().NewInfoLine("Started authenticating new client.");
Message login = null;
while (login == null)
{
login = TcpIO.ReadStream(client.GetStream());
Thread.Yield();
}
bool loginOK = (login.MessageType == MessageType.LoginInformation) && (!server.HasConnectionWithName(login.SenderName));
Logger.GetInstance().NewInfoLine(login.ToDebugString());
Logger.GetInstance().NewInfoLine($"Authentication ok for {login.SenderName}: {loginOK}");
Message response;
if (loginOK)
{
Name = login.SenderName;
aliveUntil = DateTime.Now.AddSeconds(5);
response = new Message()
{
MessageType = MessageType.LoginInformation,
ReceiverName = Name
};
}
else
{
response = new Message()
{
MessageType = MessageType.LoginInformation,
ReceiverName = null
};
}
TcpIO.WriteStream(client.GetStream(), response);
return(loginOK);
}
private void Loop()
{
NetworkStream stream = client.GetStream();
Message newMessage;
DateTime lastHeartbeat = SendHeartbeat();
while (client.Connected && keepListening)
{
if (client.Connected && stream.DataAvailable && stream.CanRead)
{
newMessage = TcpIO.ReadStream(stream);
ChatData.GetInstance().AddMessage(newMessage);
UIController.GetInstance().Refresh();
}
if (DateTime.Now.Subtract(lastHeartbeat).TotalSeconds >= 2)
{
lastHeartbeat = SendHeartbeat();
}
Thread.Yield();
}
}
public Test()
{
_channel = new TcpIO();
_channel.DataReceived += OnDataReceived;
}
