void ReceiveData(object clientSocketObj)
{
ClientSocketObj obj = (ClientSocketObj)clientSocketObj;
Socket clientSocket = obj.socket;
ChatBox cb = new ChatBox(clientSocket);
FileTransfer ft = new FileTransfer();
bool cbOpen = false;
int len;
string data;
string clientName = string.Empty;
byte[] buffer = new byte[1024];
int flag = 0;
string receivedPath = string.Empty;
int fileNameLen = 0;
int fileLen = 0;
int received = 0;
bool newClient = true;
while (true)
{
try
{
len = clientSocket.Receive(buffer);
}
catch (Exception ex)
{
//MessageBox.Show(ex.Message);
clientSocket.Close();
return;
}
data = Encoding.UTF8.GetString(buffer, 0, len);
try
{
if (data != "RCVD" && data != "[X]\r\n")
{
if (data == "/quit\n" || data == "/quit")
{
clientSocket.Send(Encoding.UTF8.GetBytes("Bye"));
AppendTextBox(cb, clientSocket.RemoteEndPoint.ToString() + " Left\r\n", true);
clientSocket.Close();
if (cb.IsHandleCreated)
{
CloseForm(cb);
}
return;
}
else if (data == "AreYouThere?")
{
if (online)
clientSocket.Send(Encoding.UTF8.GetBytes("yeah"));
else
clientSocket.Send(Encoding.UTF8.GetBytes("no"));
continue;
}
else if (data.Length > 2 && data.Substring(0, 2) == "/s")
{
if (!online && !obj.initiatedByUs)
{
clientSocket.Close();
return;
}
if (!cbOpen)
{
cbOpen = true;
OpenNewChatBox(cb);
}
newClient = false;
string addr = data.Substring(3, data.Length - 3).Split('|').GetValue(0).ToString();
string ip = addr.Split(':')[0].ToString();
int port = int.Parse(addr.Split(':')[1].ToString());
cb.RIpAddr = ip;
cb.Rport = port;
string name =data.Split('|').GetValue(1).ToString();
clientName = name.Substring(6, name.Length - 6);
SetFormText(cb, clientName);
continue;
}
else if (data.Contains("/name"))
{
clientName = data.Substring(data.IndexOf("/name") + 6, data.Length - 6);
SetFormText(cb, clientName);
//SetFormText(cb, "Friend");
continue;
}
else if (newClient)
{
if (len > 0)
{
if (flag == 0)
{
fileNameLen = BitConverter.ToInt32(buffer, 0);
string fileName = Encoding.UTF8.GetString(buffer, 4, fileNameLen);
receivedPath = fileName;
fileLen = BitConverter.ToInt32(buffer, 4 + fileNameLen);
flag++;
ft = new FileTransfer();
OpenFileTransferForm(ft);
FileTransferSetStatus(ft, string.Format("Receiving '{0}' [{1} Bytes]", Path.GetFileName(receivedPath), fileLen));
}
if (flag >= 1)
{
BinaryWriter writer = new BinaryWriter(File.Open(Path.GetFileName(receivedPath), FileMode.Append));
if (flag == 1)
{
writer.Write(buffer, 8 + fileNameLen, len - (8 + fileNameLen));
flag++;
}
else
writer.Write(buffer, 0, len);
received += len;
if (received > fileLen)
{
received = fileLen;
}
FileTransferSetStatus(ft, string.Format("Receiving '{0}' [{1}/{2} Bytes]", Path.GetFileName(receivedPath), received, fileLen));
FileTransferSetPBar(ft, fileLen, received);
if (received == fileLen)
{
//clientSocket.Send(Encoding.UTF8.GetBytes("filereceived"));
FileTransferCompleted(ft, receivedPath);
}
writer.Close();
}
}
continue;
}
clientSocket.Send(Encoding.UTF8.GetBytes("RCVD"));
AppendTextBox(cb, clientName + ": " + data + "\r\n", true);
}
else
AppendTextBox(cb, " [X]\r\n", true); //ACK
}
catch (Exception ex)
{
if (cb.IsHandleCreated)
{
CloseForm(cb);
}
}
}
}
void OpenNewChatBox(ChatBox cb)
{
if (InvokeRequired)
{
this.BeginInvoke((Action)delegate
{
cb.Show();
});
}
}