private static void Disconnect()
{
stream?.Close();
client?.Close();
Environment.Exit(0);
}
static void Disconnect()
{
reader?.Close();
writer?.Close();
client?.Close();
}
public void Close()
{
stream?.Close();
client?.Close();
}
/// <summary>
/// Closes the stream and the client connection once the window gets closed / exited.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void MainWindow_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
stream?.Close();
client?.Close();
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
stream?.Close();
tcp?.Close();
}
private void getMessage()
{
try
{
while (true)
{
serverStream = clientSocket.GetStream();
byte[] inStream = new byte[10025];
serverStream.Read(inStream, 0, inStream.Length);
List <string> parts = null;
if (!SocketConnected(clientSocket))
{
MessageBox.Show("You've been Disconnected");
ctThread.Abort();
clientSocket.Close();
btnConnect.Enabled = true;
}
parts = (List <string>)ByteArrayToObject(inStream);
switch (parts[0])
{
case "userList":
getUsers(parts);
break;
case "gChat":
readData = "" + parts[1];
msg();
break;
case "pChat":
managePrivateChat(parts);
break;
}
if (readData[0].Equals('\0'))
{
readData = "Reconnect Again";
msg();
this.Invoke((MethodInvoker) delegate // To Write the Received data
{
btnConnect.Enabled = true;
});
ctThread.Abort();
clientSocket.Close();
break;
}
chat.Clear();
}
}
catch (Exception e)
{
ctThread.Abort();
clientSocket.Close();
btnConnect.Enabled = true;
Console.WriteLine(e);
}
}
public void RunClient()
{
TcpClient client = null;
//instantiate TcpClient for sending data to server
try
{
//Create TcpClient for sending data to server
client = new TcpClient();
client.Connect("127.0.0.1", 50000);
//Get NetworkStream associated with TctClient
output = client.GetStream();
//Create objects for writing and reading across stream
writer = new BinaryWriter(output);
reader = new BinaryReader(output);
//Loop until server signals termination
do
{
//Processing phase
try
{
//Read message from server
message = reader.ReadString();
if (message.Equals("SERVER >>> Successful Authentication"))
{
HideLoginPanels();
ShowOperationsPanel();
}
//Check user permissions
if (message.Equals("SERVER >>> Cannot make encryption from guest account."))
{
MessageBox.Show("Cannot make encryptions from guest account.", "Unauthorized Operation");
}
//Check user card
if (message.Equals("SERVER >>> Invalid card number"))
{
MessageBox.Show("The card number you have entered is incorrect. Check if this is your card number.", "Invalid Card Number");
}
//Chech number of times user have encrypted his card
if (message.Equals("SERVER >>> Cannot make more than 12 encryptions"))
{
MessageBox.Show("You cannot make more than 12 ecryptions per card.", "Invalid Operation");
}
//Check permissions for decrypt
if (message.Equals("SERVER >>> Cannot decrypt this card."))
{
MessageBox.Show("You have no permissions to decrypt this card. Check if this is your card encryption.", "Invalid Operation");
}
//Get encryption/Decryption
if (Regex.IsMatch(message, @"^[0-9]+$"))
{
DisplayOutput(message);
}
}
catch (Exception)
{
System.Environment.Exit(System.Environment.ExitCode);
}
} while (message != "SERVER>>> TERMINATE");
}
catch (Exception exception)
{
MessageBox.Show(exception.ToString(), "Connection Error",
MessageBoxButton.OK, MessageBoxImage.Error);
}
finally
{
//Close connection
writer?.Close();
reader?.Close();
output?.Close();
client?.Close();
System.Environment.Exit(System.Environment.ExitCode);
}
}
public void unConnect()
{
tc.Close();
}
