public bool setKeyWithString(string input)
{
byte[] bytes = SharedEncoding.encodeString(input);
if (bytes.Length == 16)
{
this.key = bytes;
return(true);
}
else
{
return(false);
}
}
public void sendMessage(BroadcastRequest request)
{
byte[] packet = SharedEncoding.encryptBroadcastRequest(request, config.key);
if (stream != null)
{
try
{
stream.WriteAsync(packet, 0, packet.Length);
}
catch (Exception e)
{
MessageBox.Show("ERROR: Cannot send message");
}
}
else
{
MessageBox.Show("ERROR: Cannot send message");
}
}
public void disconnect()
{
if (stream != null && client != null)
{
DisconnectionRequest request = new DisconnectionRequest()
{
userName = config.userName
};
byte[] packet = SharedEncoding.encodeDisconnectionRequest(request);
try
{
stream.Write(packet, 0, packet.Length);
}
finally
{
ClientEvents.messageSent -= sendMessage;
client.Close();
}
}
}
private bool connect()
{
if (config == null || config.serverIP == default(string) || config.userName == default(string))
{
MessageBox.Show("Cannot connect to server without proper configuration");
return(false);
}
else
{
try
{
client = new TcpClient(config.serverIP, 2056);
stream = client.GetStream();
ConnectionRequest connReq = new ConnectionRequest {
userName = config.userName
};
byte[] connReqPacket = SharedEncoding.encodeConnectionRequest(connReq);
stream.Write(connReqPacket, 0, connReqPacket.Length);
ClientEvents.messageSent += sendMessage;
Thread connThread = new Thread(Main);
connThread.IsBackground = true;
connThread.Start();
return(true);
}
catch (Exception exe)
{
MessageBox.Show(exe.ToString());
return(false);
}
}
}
private void Main()
{
while (client.Connected)
{
if (stream.DataAvailable)
{
byte[] buffer = new byte[1024];
stream.Read(buffer, 0, buffer.Length);
if (SharedPacketTranslation.isBrodcastRequest(buffer))
{
BroadcastRequest request = SharedEncoding.decryptBroadcastRequest(buffer, config.key);
ClientEvents.invokeMessageRecived(request);
}
else if (SharedPacketTranslation.isNotificationRequest(buffer))
{
NotificationRequest notification = SharedEncoding.decodeNotificationRequest(buffer);
ClientEvents.invokeNotificationReceived(notification);
}
}
Thread.Sleep(100);
}
}
public string getKeyString()
{
return(SharedEncoding.decodeString(key));
}
private void handleClient(TcpClient client)
{
Client user = null;
while (client.Connected)
{
NetworkStream stream = client.GetStream();
if (stream.DataAvailable)
{
byte[] buffer = new byte[1024];
stream.Read(buffer, 0, buffer.Length);
if (SharedPacketTranslation.isConnectionRequest(buffer))
{
IPAddress clientIP = IPAddress.Parse(client.Client.RemoteEndPoint.ToString().Split(':')[0]);
string username = SharedEncoding.decodeConnectionRequest(buffer).userName;
Client thisClient = null;
foreach (Client clide in clients)
{
if (clide.userName == username && clide.publicIP.ToString() == clientIP.ToString())
{
thisClient = clide;
break;
}
}
if (thisClient != null)
{
user = thisClient;
thisClient.tcpClient = client;
thisClient.isConnected = true;
log.Add($"{user.userName} reconnected at: {DateTime.Now.ToString()}");
}
else
{
Client newClient = new Client()
{
userName = username, isConnected = true, publicIP = clientIP, tcpClient = client
};
user = newClient;
clients.Add(newClient);
log.Add($"{user.userName} connected at: {DateTime.Now.ToString()}");
}
sendMessageToAllConnectedClients(SharedEncoding.encodeNotificationRequest(new NotificationRequest()
{
message = $"{user.userName} has connected"
}));
}
else if (SharedPacketTranslation.isDisconnectRequest(buffer))
{
user.isConnected = false;
log.Add($"{user.userName} disconnected at: {DateTime.Now.ToString()}");
sendMessageToAllConnectedClients(SharedEncoding.encodeNotificationRequest(new NotificationRequest()
{
message = $"{user.userName} has disconnected"
}));
}
else if (SharedPacketTranslation.isBrodcastRequest(buffer))
{
sendMessageToAllConnectedClients(buffer);
}
}
Thread.Sleep(100);
}
user.isConnected = false;
}
