Exemple #1
0
        public void RunClient()
        {
            TcpClient cliente;
            Protocol  protocol = new Protocol();
            User      user;

            string clientTable = "";
            string clientId;
            string clientNick;

            bool clientNumberFlag   = false;
            bool clientNickNameflag = false;

            byte[] messageRcv = new byte[2048];

            try
            {
                cliente = new TcpClient();

                cliente.Connect(ip, Convert.ToInt32(port));

                connection = cliente.Client;

                do
                {
                    try
                    {
                        if (connection != null)
                        {
                            int received = connection.Receive(messageRcv);

                            var data = new byte[received];

                            Array.Copy(messageRcv, data, received);

                            if (received > 0)
                            {
                                //manda dados recebidos para serem separados e se retonar verdadeiro, trata
                                if (protocol.unParseData(data))
                                {
                                    switch (protocol.opcode)
                                    {
                                    case 0x01:

                                        //verifica se veio do servidor
                                        if (protocol.idOrigin == 0xFF)
                                        {
                                            myID = protocol.idDestination[0];

                                            if (connection != null)
                                            {
                                                //manda o nickname para o servidor
                                                connection.Send(protocol.parseData(0x01, myID, Enumerable.Repeat((byte)0x00, 8).ToArray(), Encoding.UTF8.GetBytes(txtBxNick.Text)));
                                            }
                                        }

                                        break;

                                    case 0x02:

                                        if (protocol.idOrigin == 0xFF)
                                        {
                                            clientTable = "";

                                            clientUsers.Clear();

                                            char[] messageChars = protocol.message.ToCharArray();

                                            clientId   = "";
                                            clientNick = "";

                                            //busca os caracteres e atualiza a tabela de usuários
                                            foreach (char c in messageChars)
                                            {
                                                if (c == ']')
                                                {
                                                    clientNumberFlag = false;
                                                }
                                                else if (c == '}')
                                                {
                                                    clientNickNameflag = false;
                                                    clientTable       += Environment.NewLine;

                                                    user = new User(null, Convert.ToUInt16(clientId));
                                                    user.userSetNick(clientNick);

                                                    clientUsers.Add(user);

                                                    clientId   = "";
                                                    clientNick = "";
                                                }

                                                if (clientNumberFlag)
                                                {
                                                    clientId += c;
                                                }
                                                if (clientNickNameflag)
                                                {
                                                    clientNick += c;
                                                }

                                                if (c == '[')
                                                {
                                                    clientNumberFlag = true;
                                                }
                                                else if (c == '{')
                                                {
                                                    clientNickNameflag = true;
                                                    clientTable       += " ";
                                                }
                                                else if (c != ']' && c != '}')
                                                {
                                                    clientTable += c;
                                                }
                                            }

                                            sendToUsersBox("", clientTable);
                                        }

                                        break;

                                    case 0x03:

                                        if (protocol.idOrigin == 0xFF)
                                        {
                                            sendToChatBox("Append", "Server: " + protocol.message.Replace("\0", string.Empty));
                                        }
                                        else
                                        {
                                            sendToChatBox("Append", clientUsers.Find(c => c.userGetID() == protocol.idOrigin).userGetNick() + ": " + protocol.message.Replace("\0", string.Empty));
                                        }

                                        break;
                                    }
                                }
                            }

                            messageRcv = new byte[2048];
                        }
                    }

                    catch (Exception)
                    {
                        Environment.Exit(Environment.ExitCode);
                    }
                } while (true);
            }

            catch (Exception error)
            {
                MessageBox.Show(error.ToString());
            }
        }
Exemple #2
0
        private void ReceiveCallback(IAsyncResult AR)
        {
            Socket   current  = (Socket)AR.AsyncState;
            Protocol protocol = new Protocol();

            User localUser;

            int received;

            try
            {
                received = current.EndReceive(AR);
            }
            catch (SocketException)
            {
                sendToChatBox("Append", "Cliente desconectado " + current.RemoteEndPoint.ToString());

                // Don't shutdown because the socket may be disposed and its disconnected anyway.
                current.Close();

                //procura o usuário cujo socket é igual ao que está sendo finalizado
                if (clientUsers.Count > 0)
                {
                    clientUsers.Remove(clientUsers.Find(x => x.socket == current));
                    clientSockets.Remove(current);
                    updateClientTable();
                }

                return;
            }

            byte[] recBuf = new byte[received];

            Array.Copy(buffer, recBuf, received);

            /*
             * Aqui vai uma função que deve separar a mensagem e trata-la de acordo com os usuarios recebidos
             */

            if (protocol.unParseData(recBuf))
            {
                switch (protocol.opcode)
                {
                case 0x01:

                    for (int count = 0; count < clientUsers.Count; count++)
                    {
                        if (clientUsers[count].userGetID() == Convert.ToByte(protocol.idOrigin))
                        {
                            clientUsers[count].userSetNick(protocol.message.Replace("\0", string.Empty));

                            //setou o nick name corretamente, agora precisa mandar a tabela atualizada para todos os clientes
                            updateClientTable();

                            break;
                        }
                    }

                    break;

                case 0x02:



                    break;

                case 0x03:

                    for (uint count = 0; count < 8; count++)
                    {
                        if (clientUsers.Count > count)
                        {
                            localUser = clientUsers.Find(client => client.userGetID() == protocol.idDestination[count]);

                            if (localUser != null && localUser.socket.Connected)
                            {
                                localUser.socket.Send(protocol.parseData(0x03, protocol.idOrigin, protocol.idDestination, Encoding.UTF8.GetBytes(protocol.message)));
                            }
                        }
                    }

                    sendToChatBox("Append", clientUsers.Find(c => c.userGetID() == protocol.idOrigin).userGetNick() + ": " + protocol.message.Replace("\0", string.Empty));

                    break;
                }
            }

            current.BeginReceive(buffer, 0, 2048, SocketFlags.None, ReceiveCallback, current);
        }