private void SendButton_Click(object sender, EventArgs e)
{
MethodInvoker methodInvokerDelegate = delegate()
{
if (this.sendMessageTextBox.Text.Length >= 1)
{
this.networkWatcher.Send(ProtocolCreator.Message(this.username, this.sendMessageTextBox.Text, this.sessionkey));
this.sendMessageTextBox.Text = string.Empty;
if (this.sendMessageTextBox.Focused == false)
{
this.sendMessageTextBox.Focus();
}
}
};
if (this.InvokeRequired)
{
this.Invoke(methodInvokerDelegate);
}
else
{
methodInvokerDelegate();
}
}
private void IsAliveWorker()
{
while (this.isReading == true)
{
this.Send(ProtocolCreator.IsAlive());
Thread.Sleep(2000);
}
}
public void EnterMessage()
{
Console.Clear();
Console.Write(">> ");
string message = Console.ReadLine();
Protocol userMessage = ProtocolCreator.Message(this.username, message, this.sessionKey);
NetworkManager.SendMessage(userMessage, outputWindowClient);
}
private void CleanClosing(object sender, FormClosingEventArgs args)
{
DialogResult askIfLogout = MessageBox.Show("Do you want to logout?", "Chat", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2);
if (askIfLogout == DialogResult.No)
{
args.Cancel = true;
}
else if (askIfLogout == DialogResult.Yes)
{
this.networkWatcher.Send(ProtocolCreator.LogOut(this.username, this.sessionkey));
this.networkWatcher.Stop();
}
}
public void ConnectToInputWindow()
{
IPEndPoint outputWindow = new IPEndPoint(IPAddress.Loopback, 90);
this.inputWindowClient = new TcpClient();
NetworkManager.Connect(outputWindow, inputWindowClient);
Protocol sessionData = ProtocolCreator.SessionData(this.username, this.sessionKey);
NetworkManager.SendMessage(sessionData, this.inputWindowClient);
this.forwardMessages = new Thread(ForwardMessagesToServer);
forwardMessages.Start();
}
public ChatWindow(string username, string sessionkey, NetworkWatcher networkWatcher)
{
InitializeComponent();
this.FormClosing += this.CleanClosing;
this.username = username;
this.usernameLabel.Text = username + ":";
this.sessionkey = sessionkey;
onlineUserBoxLocker = new object();
messageBoxLocker = new object();
this.networkWatcher = networkWatcher;
this.networkWatcher.ConnectionLost += this.ConnectionLost;
this.networkWatcher.DataReceived += this.DataReceived;
this.networkWatcher.Send(ProtocolCreator.SessionKeyReceived(this.username, this.sessionkey));
}
private void LoginButton_Click(object sender, EventArgs e)
{
if (this.CheckIfLegalIPAddress(this.ipAddressTextBox.Text) == false)
{
MessageBox.Show("Please enter a legal IPv4 address!", "Chat", MessageBoxButtons.OK, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1);
}
else if (CheckIfLegalPort(this.portTextBox.Text) == false)
{
MessageBox.Show("The port must be between 3000 and 9000!", "Chat", MessageBoxButtons.OK, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1);
}
else if (this.usernameTextBox.Text.ToCharArray().Length < 3)
{
MessageBox.Show("The username must be at least 3 characters long!", "Chat", MessageBoxButtons.OK, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1);
}
else
{
this.networkWatcher = new NetworkWatcher(IPAddress.Parse(this.ipAddressTextBox.Text), int.Parse(this.portTextBox.Text));
this.networkWatcher.ConnectionLost += this.ConnectionLost;
this.networkWatcher.DataReceived += this.DataReceived;
this.networkWatcher.Start();
if (this.networkWatcher.Connected == true)
{
this.networkWatcher.Send(ProtocolCreator.LogIn(this.usernameTextBox.Text));
if (this.WaitForSessionKey(1000) == true)
{
this.networkWatcher.ConnectionLost -= this.ConnectionLost;
this.networkWatcher.DataReceived -= this.DataReceived;
this.Hide();
ChatWindow chatWindow = new ChatWindow(this.usernameTextBox.Text, this.sessionkey, this.networkWatcher);
chatWindow.FormClosed += this.ChatWindowClosed;
chatWindow.Show();
}
}
}
}
public void ForwardMessagesToServer()
{
while (true)
{
string messageProtocol = NetworkManager.ReadMessage(inputWindowClient, 302);
char[] mesageProtocolArray = messageProtocol.ToCharArray();
if (messageProtocol[0] == 'C' && messageProtocol[1] == 'H' && messageProtocol[2] == 'A' && messageProtocol[3] == 'T' && messageProtocol[4] == 'M' && messageProtocol[5] == 'E')
{
string messageString = string.Empty;
for (int i = 6; i < mesageProtocolArray.Length; i++)
{
messageString = messageString + mesageProtocolArray[i];
}
string[] messageProtocolContent = messageString.Split('-');
Protocol message = ProtocolCreator.Message(messageProtocolContent[0], messageProtocolContent[1], messageProtocolContent[2]);
NetworkManager.SendMessage(message, serverClient);
}
}
}
public static void DisplayLoginMenu()
{
Console.Clear();
ShowHeader();
Console.WriteLine();
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine("[!] Enter your user information below to login or press [ESC] to go back!");
Console.WriteLine();
Console.WriteLine(" " + "Username: "******" " + "Password: "******"The username must not be empty and between 3 and 10 characters!");
}
Console.CursorVisible = false;
Console.SetCursorPosition(23, 11);
Console.CursorVisible = true;
string password = GetStringWithASpecificLength(12, 23, 11, out exit, false);
if (exit == false)
{
if (CheckIfLegalString(password, 6, 12) == false)
{
throw new ArgumentException("The password must not be empty and between 6 and 12 characters!");
}
settings.CheckConfigFile();
IPEndPoint server = new IPEndPoint(settings.ServerIP, settings.ServerPort);
TcpClient client = new TcpClient();
NetworkManager.Connect(server, client);
Protocol loginRequest = ProtocolCreator.LoginRequest(username, password);
NetworkManager.SendMessage(loginRequest, client);
string loginResponse = NetworkManager.ReadMessage(client, 38);
if (loginResponse == "CHATLI")
{
throw new ArgumentException("The username or the password is invalid!");
}
else
{
char[] loginResponseArray = loginResponse.ToCharArray();
if (loginResponseArray[0] == 'C' && loginResponseArray[1] == 'H' && loginResponseArray[2] == 'A' && loginResponseArray[3] == 'T' && loginResponseArray[4] == 'L' && loginResponseArray[5] == 'O')
{
string sessionKey = string.Empty;
for (int i = 6; i < loginResponseArray.Length; i++)
{
sessionKey = sessionKey + loginResponseArray[i];
}
Process.Start("Client.exe", "OpenInputWindow" + " " + settings.ServerIP + " " + settings.ServerPort);
OutputWindow outputWindow = new OutputWindow(username, sessionKey, client);
outputWindow.Start();
}
}
}
}
}
catch (Exception e)
{
Console.SetCursorPosition(0, 12);
Console.WriteLine();
Console.WriteLine(e.Message);
Console.WriteLine();
Console.WriteLine("Press any key to continue!");
Console.CursorVisible = false;
Console.ReadKey(true);
DisplayLoginMenu();
}
Console.CursorVisible = false;
Console.ResetColor();
}
public static void DisplayRegisterMenu()
{
Console.Clear();
ShowHeader();
Console.WriteLine();
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine("[!] Enter a username and a password below to register or press [ESC] to go back!");
Console.WriteLine(" If you have problems registering, press [F12] to open the help!");
Console.WriteLine();
Console.WriteLine(" " + "Username: "******" " + "Password: "******" " + "Confirm Password: "******"The username must not be empty and between 3 and 10 characters!");
}
Console.CursorVisible = false;
Console.SetCursorPosition(23, 12);
Console.CursorVisible = true;
string password = GetStringWithASpecificLength(12, 23, 12, out exit, false);
if (exit == false)
{
if (CheckIfLegalString(password, 6, 12) == false)
{
throw new ArgumentException("The password must not be empty and between 6 and 12 characters!");
}
Console.CursorVisible = false;
Console.SetCursorPosition(31, 14);
Console.CursorVisible = true;
string confirmPassword = GetStringWithASpecificLength(12, 31, 14, out exit, false);
if (exit == false)
{
if (CheckIfLegalString(confirmPassword, 6, 12) == false)
{
throw new ArgumentException("The confirmation password must not be empty and between 6 and 12 characters!");
}
else if (password != confirmPassword)
{
throw new ArgumentException("The password must match the confirmation password!");
}
settings.CheckConfigFile();
IPEndPoint server = new IPEndPoint(settings.ServerIP, settings.ServerPort);
TcpClient client = new TcpClient();
NetworkManager.Connect(server, client);
Protocol registrationRequest = ProtocolCreator.RegistrationRequest(username, password);
NetworkManager.SendMessage(registrationRequest, client);
string registrationResponse = NetworkManager.ReadMessage(client, 6);
if (registrationResponse == "CHATRI")
{
throw new ArgumentException("The username already exists! Please try another one!");
}
else if (registrationResponse == "CHATRO")
{
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("The registration was successful! You can login now!");
Console.WriteLine();
Console.WriteLine("Press any key to continue!");
Console.CursorVisible = false;
Console.ReadKey(true);
}
}
}
}
}
catch (Exception e)
{
Console.SetCursorPosition(0, 15);
Console.WriteLine();
Console.WriteLine(e.Message);
Console.WriteLine();
Console.WriteLine("Press any key to continue!");
Console.CursorVisible = false;
Console.ReadKey(true);
DisplayRegisterMenu();
}
Console.CursorVisible = false;
Console.ResetColor();
}
