public void ChannelWin_FormClosing(object sender, FormClosingEventArgs e)
{
if (online)
{
if (MessageBox.Show("Are you sure you want to disconnect?", "Bismark Chat", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No)
{
e.Cancel = true;
return;
}
try
{
IMData msgToSend = new IMData();
msgToSend.Command = CmdType.Logout;
msgToSend.User = userName;
msgToSend.Message = null;
byte[] b = msgToSend.ToByte();
clientSocket.Send(b, 0, b.Length, SocketFlags.None);
clientSocket.Shutdown(SocketShutdown.Both);
clientSocket.Close();
}
catch (SocketException)
{
}
catch (Exception ex)
{
//MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
private void OnConnect(IAsyncResult ar)
{
try
{
clientSocket.EndConnect(ar);
// We are connected so we login into the server
IMData msgToSend = new IMData();
msgToSend.Command = CmdType.Login;
msgToSend.User = userName;
msgToSend.Message = null;
byte[] b = msgToSend.ToByte();
// Send the message to the server
clientSocket.BeginSend(b, 0, b.Length, SocketFlags.None, new AsyncCallback(OnSend), null);
Online(true);
}
catch (SocketException ex)
{
UpdateLog("[" + DateTime.Now.ToShortTimeString() + "] [ERROR] " + "Unable to connect to the server. The server has either refused the connection, " +
"or it is not online. Please check with your administrator.");
}
catch (Exception ex)
{
UpdateLog("[" + DateTime.Now.ToShortTimeString() + "] [ERROR] " + ex.Message);
}
}
private void Online(bool value)
{
try
{
if (value)
{
online = true;
toolStripButton1.Text = "Disconnect";
toolStripButton1.Image = Properties.Resources.disconnect;
IMData msgToSend = new IMData();
msgToSend.Command = CmdType.List;
msgToSend.User = userName;
msgToSend.Message = null;
byteData = msgToSend.ToByte();
clientSocket.BeginSend(byteData, 0, byteData.Length, SocketFlags.None, new AsyncCallback(OnSend), null);
byteData = new byte[1024];
clientSocket.BeginReceive(byteData, 0, byteData.Length, SocketFlags.None, new AsyncCallback(OnReceive), null);
UpdateLog("[" + DateTime.Now.ToShortTimeString() + "] [CONNECTED]");
}
else
{
online = false;
ClearClientList();
toolStripButton1.Text = "Connect";
toolStripButton1.Image = Properties.Resources.connect;
IMData msgToSend = new IMData();
msgToSend.Command = CmdType.Logout;
msgToSend.User = userName;
msgToSend.Message = null;
byteData = msgToSend.ToByte();
clientSocket.BeginSend(byteData, 0, byteData.Length, SocketFlags.None, new AsyncCallback(OnSend), null);
clientSocket.Shutdown(SocketShutdown.Both);
clientSocket.Close();
UpdateLog("[" + DateTime.Now.ToShortTimeString() + "] [DISCONNECTED]");
}
}
catch (Exception ex)
{
UpdateLog("[" + DateTime.Now.ToShortTimeString() + "] [ERROR] " + ex.Message);
}
}
private void OnReceive(IAsyncResult ar)
{
try
{
clientSocket.EndReceive(ar);
IMData msgReceived = new IMData(byteData);
switch (msgReceived.Command)
{
case CmdType.Login:
AddUser(msgReceived.User);
break;
case CmdType.Logout:
RemoveUser(msgReceived.User);
break;
case CmdType.Message:
break;
case CmdType.List:
ListUsers(msgReceived.Message);
break;
}
if (msgReceived.Message != null && msgReceived.Command != CmdType.List)
{
UpdateLog(msgReceived.Message);
if (!msgReceived.Message.Contains("SERVER:") && msgReceived.User != userName && !this.Focused)
{
//fxMessageReceived.Play();
}
}
byteData = new byte[1024];
clientSocket.BeginReceive(byteData, 0, byteData.Length, SocketFlags.None, new AsyncCallback(OnReceive), null);
}
catch (SocketException)
{
Online(false);
}
catch (Exception ex)
{
// MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void txtMessage_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
e.SuppressKeyPress = true;
if (txtMessage.Focused && txtMessage.Text.Trim() != string.Empty)
{
try
{
if (txtMessage.Text.Trim().StartsWith("/clear"))
{
txtLog.Clear();
txtMessage.Clear();
e.Handled = true;
return;
}
// fxSendMessage.Play();
IMData msgToSend = new IMData();
msgToSend.User = userName;
msgToSend.Message = txtMessage.Text.Trim();
msgToSend.Command = CmdType.Message;
byte[] byteData = msgToSend.ToByte();
clientSocket.BeginSend(byteData, 0, byteData.Length, SocketFlags.None, new AsyncCallback(OnSend), null);
txtMessage.Clear();
e.Handled = true;
}
catch (Exception ex)
{
UpdateLog("[" + DateTime.Now.ToShortTimeString() + "] [ERROR] " + ex.Message);
}
}
}
}
