/*private void createChat(User chatuser, String username){
if(mainControl != null && mainControl.InvokeRequired){
mainControl.Invoke(createChat)*/
private void messageListen()
{
while (true)
{
msgClient.Client.ReceiveTimeout = 100;
try
{
byte[] rcv = msgClient.Receive(ref msgRCVEP);
char[] rcvCStr = Encoding.ASCII.GetChars(rcv, 0, rcv.Length);
String rcvStr = new String(rcvCStr);
String uName = rcvStr.Substring(4, 32).Trim('\0');
bool isEncrypted = false;
if(rcvStr.Substring(41, 1)[0] != '\0')
isEncrypted = (Int32.Parse(rcvStr.Substring(41, 1)) == 1);
if (rcvStr.StartsWith("MESG"))
{
IPAddress rcvIP = msgRCVEP.Address;
User chatUser = checkAndAddUser(uName, rcvIP);
ChatFrm thisChat = null;
bool chatOpen = false;
int sequenceID = Int32.Parse(rcvStr.Substring(36, 5));
char[] mackMSGStr = Message.setupPacket("MACK", username,
sequenceID.ToString(), '0', "");
IPEndPoint sendTo = new IPEndPoint(rcvIP, StaticVars.msgPort);
UdpClient sendMACK = new UdpClient();
sendMACK.Send(Encoding.ASCII.GetBytes(mackMSGStr),
mackMSGStr.Length, sendTo);
if(chatUser.chatExists() && !chatUser.chatHidden()){
thisChat = chatUser.getChat();
threadSafeActivateChat(thisChat);
chatOpen = true;
}
if(!chatOpen){
thisChat = new ChatFrm(chatUser, username, this);
newChats.Add(thisChat);
chatUser.openChat(ref thisChat);
}
if (isEncrypted && !chatUser.isPasswordProtected())
{
GetPassword window = new GetPassword(chatUser.username);
while (window.ShowDialog() != DialogResult.OK) ;
chatUser.setPassword(window.password);
}
String messageStr = rcvStr.Substring(42, 140).Trim('\0');
Message receivedMessage = new Message(messageStr,
thisChat.chatUser);
if (!chatUser.receivedSequences.Contains(sequenceID))
{
chatUser.receivedSequences.Add(sequenceID);
chatUser.receivedMessages.Add(receivedMessage);
}
}
else if (rcvStr.StartsWith("MACK"))
{
foreach (User user in UserList)
{
if (user.username == uName)
{
int sequenceID = Int32.Parse(rcvStr.Substring(36, 5));
SendMessage temp = null;
user.touchAwaitingMACK(false, ref temp, sequenceID);
break;
}
}
}
// Manage memory
rcvCStr = null;
rcvStr = null;
uName = null;
rcv = null;
}
// Catch the exception for when the receive times out
// If the thread needs to be killed, exit the thread
catch (SocketException)
{
if (rcvThreadKill)
Application.ExitThread();
}
}
}
private void cmUser_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
{
int selectedIndex = lbUsers.SelectedIndex;
String selectedUsername = lbUsers.Items[selectedIndex].ToString();
GetPassword window = new GetPassword(selectedUsername);
if(window.ShowDialog() != DialogResult.OK)
return;
foreach (User user in UserList)
{
if (user.username == selectedUsername)
{
if (user.chatExists())
{
if (user.chatHidden())
{
user.setPassword(window.password);
user.getChat().Show();
}
user.getChat().Activate();
}
else
{
ChatFrm newChat = new ChatFrm(user, username, this);
user.setPassword(window.password);
user.openChat(ref newChat);
newChat.Show();
}
}
}
}
