private void sendMessage(object sender, messageReceptionEventArgs eveArgs)
{
string t = null;
if (eveArgs.Disconnection)
{
foreach (DictionaryEntry item in socketArray)
{
if (eveArgs.theSocket == item.Value)
{
t = (string)item.Key;
}
}
if (t != null)
{
socketArray.Remove(t);
clientConnectionEventArgs sd = new clientConnectionEventArgs(t, true);
clientConnected(this, sd);
}
}
else
{
Socket s;
byte[] id = new byte[10];
byte[] msg = new byte[1014];
for (int i = 0; i < 10; ++i)
if (eveArgs.message[i] != 0)
id[i] = eveArgs.message[i];
for (int j = 10, k = 0; j < 1014; ++j, ++k)
if (eveArgs.message[j] != 0)
msg[k] = eveArgs.message[j];
s = (Socket)socketArray[Encoding.ASCII.GetString(id, 0, id.Length)];
if (s != null) //if the destination user is online
s.Send(eveArgs.message);
}
}
private void showIDs(object sender,clientConnectionEventArgs e)
{
if(e.Connected)
{
listBox1.Items.Remove(e.ID);
}
else
{
if (listBox1.Items.Contains(e.ID) == false)
{
//listBox1.Items.Add(e.ID);
if (this.listBox1.InvokeRequired)
{
// It's on a different thread, so we use Invoke.
SetTextCallback d = new SetTextCallback(showIDs);
this.Invoke(d, this, e);
// new object[] { text + " (Invoke)" }
}
else
{
// It's on the same thread, no need for Invoke
this.listBox1.Items.Add(e.ID);
}
}
}
}
public void connectClients()
{
int a = 1;
byte[] IDpassword;
byte[] idB;
byte[] passB;
string id;
string pass;
bool check = false;
ipep = new IPEndPoint(IPAddress.Any, m_port);
sock1 = new Socket(AddressFamily.InterNetwork,
SocketType.Stream, ProtocolType.Tcp);
try
{
sock1.Bind(ipep);
}
catch (SocketException op)
{
MessageBox.Show(op.Message);
}
for (; ; )
{
IDpassword = new byte[20];
idB = new byte[10];
passB = new byte[10];
sock1.Listen(10); //The argument is the maximum length of the pending connections queue
sock2 = sock1.Accept();
a = sock2.Receive(IDpassword);
if (a == 0)
{
sock2.Shutdown(SocketShutdown.Both);
sock2.Close();
continue;
}
check = checkIDpassword(IDpassword);
if (check == false)
{
byte[] y = new byte[14];
Encoding.ASCII.GetBytes("wrong password", 0, 14, y, 0);
sock2.Send(y);
sock2.Close();
continue;
}
else
{
int i = 0, n = 0, eachItem = 0;
bool flag = false;
string temp;
byte[] x = new byte[1100];
foreach (string item in IDs)
if (item != null)
{
temp = item.TrimEnd();
flag = true;
n = eachItem;
Encoding.ASCII.GetBytes(temp, 0, temp.Length, x, n);
n += temp.Length;
i = 10 - (temp.Length);
for (int w = 0; w < i; ++w)
{
Encoding.ASCII.GetBytes("\0", 0, 1, x, n);
++n;
}
if (isOnline(temp))
{
Encoding.ASCII.GetBytes("$", 0, 1, x, n);
}
else
{
Encoding.ASCII.GetBytes("%", 0, 1, x, n);
}
eachItem += 11;
}
else
{
if (flag == false)
Encoding.ASCII.GetBytes("welcome", 0, 7, x, 0);
}
int p = sock2.Send(x);
if (p == 0)
MessageBox.Show("Agreement was not Sent!");
for (int b = 0; b < 10; ++b)
idB[b] = IDpassword[b];
clientConnectionEventArgs ea = new clientConnectionEventArgs(idB);
clientConnected(this, ea);
//vaghti client be server vasl mishavad yek baste
//be toole 20 byte havie id va pass miferestad
//ke dar code zir be 2 ghesmate id va pass
//joda misgavad
//Fires an event to notify the User of the class
//that a client is connected to the server
//generating the ID and password
//from the received BYTE array
id = Encoding.ASCII.GetString(idB, 0, idB.Length);
try
{
socketArray.Add(id, sock2);
}
catch (ArgumentException m)
{
//eventlog , error
}
//notifying all the users , the Connection of the new user
notify();
receivingThread rt = new receivingThread();
rt.sock = sock2;
rt.Disconnection += new disconnectionHandler(rt_Disconnection);
rt.messageReceived += new messageReceptionHandler(sendMessage);
clientThread = new Thread(new ThreadStart(rt.receiving));
clientThreads.Add(clientThread);
clientThread.Start();
}
}
}
