private void ReceiveCallback(IAsyncResult ar)
{
try {
sendDone.Set();
// Retrieve the state object and the client socket
// from the asynchronous state object.
StateObject state = (StateObject)ar.AsyncState;
Socket client = state.workSocket;
state.sb = new StringBuilder();
// Read data from the remote device.
int bytesRead = client.EndReceive(ar);
if (bytesRead > 0)
{
// There might be more data, so store the data received so far.
state.sb.Append(Encoding.UTF8.GetString(state.buffer, 0, bytesRead));
string content = state.sb.ToString();
if (content.IndexOf("}end") > -1)
{
// All the data has been read from the
// client. Display it on the console.
Console.WriteLine("Read {0} bytes from socket. \n Data : {1}", content.Length, content);
// Echo the data back to the client.
int begin = content.IndexOf("beg{");
int ende = content.IndexOf("}end");
string contentOhneHeaderUndTailer = "";
for (int j = begin + 4; j < ende; j++)
{
contentOhneHeaderUndTailer += content[j];
}
int aktion = -1;
aktion = Int32.Parse("" + contentOhneHeaderUndTailer[0]);
if (aktion == (int)aktionEnum.chatMessage)
{
string[] aufgeteilteNachricht = content.Split('☻');
string empfangenerChatText = aufgeteilteNachricht[3];
foreach (StateObject item in Form1.chatObjekte)
{
if (item.peerName.Contains(aufgeteilteNachricht[1]))
{
try {
item.chatForm.Invoke((MethodInvoker) delegate {
item.chatForm.Activate();
item.chatForm.chatText.Text = item.chatForm.chatText.Text + Environment.NewLine + Environment.NewLine + aufgeteilteNachricht[1] + ": " + empfangenerChatText;
item.chatForm.chatText.SelectionStart = item.chatForm.chatText.Text.Length;
item.chatForm.chatText.ScrollToCaret();
});
} catch (Exception ex) {
Console.WriteLine(ex.ToString());
try {
ChatForm chatformNeu = new ChatForm();
chatformNeu.Text = "Chat mit " + aufgeteilteNachricht[1];
item.chatForm = chatformNeu;
chatformNeu.chatText.Text = item.chatForm.chatText.Text + Environment.NewLine + Environment.NewLine + aufgeteilteNachricht[1] + ": " + empfangenerChatText;
chatformNeu.ShowDialog();
item.chatForm.Activate();
//Application.Run(chatform);
} catch (Exception ex2) {
Console.WriteLine(ex2.ToString());
}
}
break;
}
}
}
}
}
client.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReceiveCallback), state);
} catch (Exception ex) {
Console.WriteLine(ex.ToString());
}
}
private void chatButton_Click(object sender, EventArgs e)
{
string NameDesAusgewaehltenPeers = "";
try{
NameDesAusgewaehltenPeers = peersListe.SelectedItems[0].SubItems[1].Text;
}
catch (Exception ex) {
Console.WriteLine(ex.ToString());
}
if (IpOfSelectedPeer.Equals("") || NameDesAusgewaehltenPeers.Equals(""))
{
MessageBox.Show("Es wurde kein Peer ausgewählt...", "Achtung", MessageBoxButtons.OK);
return;
}
bool gefunden = false;
StateObject tmpObjekt = null;
foreach (StateObject item in chatObjekte)
{
if (item.peerName.Equals(NameDesAusgewaehltenPeers))
{
tmpObjekt = item;
gefunden = true;
break;
}
}
if (gefunden)
{
//ChatForm chatform = new ChatForm();
try {
ChatForm chatformNeu = new ChatForm();
chatformNeu.Text = "Chat mit " + tmpObjekt.peerName;
tmpObjekt.chatForm = chatformNeu;
chatformNeu.Show();
//Application.Run(chatform);
} catch (Exception ex) {
Console.WriteLine(ex.ToString());
}
//chatform.Text = "Chat mit " + tmpObjekt.peerName;
//chatform.Show();
//tmpObjekt.chatForm = chatform;
}
else
{
ChatForm chatform = new ChatForm();
chatform.Text = "Chat mit " + NameDesAusgewaehltenPeers;
chatform.Show();
IPEndPoint remoteEP = new IPEndPoint(IPAddress.Parse(IpOfSelectedPeer), peersPort);
Socket client = new Socket(SocketType.Stream, ProtocolType.Tcp);
client.BeginConnect(remoteEP, new AsyncCallback(ConnectCallback), client);
//connectDone.WaitOne();
StateObject state = new StateObject();
state.workSocket = client;
state.chatForm = chatform;
state.peerName = NameDesAusgewaehltenPeers;
chatObjekte.Add(state);
Thread.Sleep(100);
try {
client.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReceiveCallbackChat), state);
} catch (Exception ex) {
Console.WriteLine(ex.ToString());
}
Thread.Sleep(100);
//sendDone.WaitOne();
sendThreadChat(client);
}
}
