public override void SendChatMessage(string message) { ServerMessagePacket serverMessage = new ServerMessagePacket() { Message = message }; AssociatedPeer.Send(ServerPacketHandler.Instance.WriteSerializable(PacketType.ServerMessage, serverMessage), DeliveryMethod.ReliableUnordered); }
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e) { if (txtNick.Text != null) { UserPacket user = new UserPacket(txtNick.Text, comboBox1.Text); client.SendMessage(user); ServerMessagePacket server = new ServerMessagePacket(txtNick.Text + " is now " + comboBox1.Text + "."); client.SendMessage(server); } }
private void btnNick_Click_1(object sender, EventArgs e) { //NickNamePacket nickname = new NickNamePacket(txtNick.Text); UserPacket user = new UserPacket(txtNick.Text, "Online"); client.SendMessage(user); ServerMessagePacket message = new ServerMessagePacket(txtNick.Text + " has joined the chat."); client.SendMessage(message); txtNick.Enabled = false; btnNick.Enabled = false; btnSend.Enabled = true; }
static byte[] GetBytesFromPacket(ServerMessagePacket packet) { int size = System.Runtime.InteropServices.Marshal.SizeOf(packet); byte[] bytes = new byte[size]; IntPtr ptr = Marshal.AllocHGlobal(size); Marshal.StructureToPtr(packet, ptr, true); Marshal.Copy(ptr, bytes, 0, size); Marshal.FreeHGlobal(ptr); return(bytes); }
public Packet TCPRead() { try { int numberOfBytes; if ((numberOfBytes = _reader.ReadInt32()) != -1) { byte[] buffer = _reader.ReadBytes(numberOfBytes); MemoryStream memoryStream = new MemoryStream(buffer); Packet packet = _binaryFormatter.Deserialize(memoryStream) as Packet; switch (packet.EPacketType) { case PacketType.CHATMESSAGE: ChatMessagePacket chatMessagePacket = (ChatMessagePacket)packet; return(new ChatMessagePacket(Decrypt(chatMessagePacket.OriginClient), Decrypt(chatMessagePacket.Message))); case PacketType.SERVERMESSAGE: ServerMessagePacket serverMessagePacket = (ServerMessagePacket)packet; return(new ServerMessagePacket(Decrypt(serverMessagePacket.Message))); case PacketType.PRIVATEMESSAGE: PrivateMessagePacket privateMessagePacket = (PrivateMessagePacket)packet; return(new PrivateMessagePacket(Decrypt(privateMessagePacket.OriginClient), Decrypt(privateMessagePacket.PrivateMessage))); case PacketType.ANNOUNCEMESSAGE: AnnouncementMessagePacket announcementMessagePacket = (AnnouncementMessagePacket)packet; return(new AnnouncementMessagePacket(Decrypt(announcementMessagePacket.Message))); } return(packet); } else { return(null); } } catch (Exception e) { Console.WriteLine("[Error] " + e.Message + e.StackTrace); return(null); } }
public void TCPSend(Packet packet) { lock (_writeLock) { try { //encrypt relevant packets switch (packet.EPacketType) { case PacketType.CHATMESSAGE: ChatMessagePacket chatMessagePacket = (ChatMessagePacket)packet; Serialize(new ChatMessagePacket(Encrypt(chatMessagePacket.OriginClient), Encrypt(chatMessagePacket.Message))); break; case PacketType.SERVERMESSAGE: ServerMessagePacket serverMessagePacket = (ServerMessagePacket)packet; Serialize(new ServerMessagePacket(Encrypt(serverMessagePacket.Message))); break; case PacketType.PRIVATEMESSAGE: PrivateMessagePacket privateMessagePacket = (PrivateMessagePacket)packet; Serialize(new PrivateMessagePacket(Encrypt(privateMessagePacket.OriginClient), Encrypt(privateMessagePacket.PrivateMessage))); break; case PacketType.ANNOUNCEMESSAGE: AnnouncementMessagePacket announcementMessagePacket = (AnnouncementMessagePacket)packet; Serialize(new AnnouncementMessagePacket(Encrypt(announcementMessagePacket.Message))); break; default: Serialize(packet); break; } } catch (Exception e) { Console.WriteLine("[Error] " + e.Message + e.StackTrace); } } }
void TcpClientMethod(int index) { Console.WriteLine("Socket opened. (" + _tcpListener.ToString() + ")"); Packet receivedPacket; Client client = _clients[index]; try { while ((receivedPacket = client.TcpRead()) != null) { Console.Write("TCP Receieved: "); // act on packet type switch (receivedPacket._packetType) { case Packet.PacketType.EMPTY: Console.WriteLine("EMPTY"); /* do nothing */ break; case Packet.PacketType.CHATMESSAGE: Console.WriteLine("CHAT"); TcpRespondToAll((ChatMessagePacket)receivedPacket, client); break; case Packet.PacketType.PRIVATEMESSAGE: Console.WriteLine("PRIVATE"); TcpRespondTo((PrivateMessagePacket)receivedPacket, client); break; case Packet.PacketType.SERVERMESSAGE: Console.WriteLine("SERVER"); ServerMessagePacket servPacket = (ServerMessagePacket)receivedPacket; servPacket._messageRecv = GetReturnMessage(servPacket._messageSent); client.TcpSend(servPacket); break; case Packet.PacketType.CLIENTNAME: Console.WriteLine("NAME"); ClientNamePacket namePacket = (ClientNamePacket)receivedPacket; // create message namePacket._message = client._name + " changed name to " + namePacket._name; // change name client._name = namePacket._name; // update client client.TcpSend(namePacket); // notify all clients TcpRespondToAll(new ChatMessagePacket(namePacket._message), client); break; case Packet.PacketType.LOGIN: Console.WriteLine("LOGIN"); LoginPacket loginPacket = (LoginPacket)receivedPacket; client._endPoint = loginPacket._endPoint; loginPacket._serverKey = client.UpdateRSA(loginPacket); client.TcpSend(loginPacket); break; case Packet.PacketType.SECUREMESSAGE: Console.WriteLine("SECURE"); // receive packet SecurePacket safePacket = (SecurePacket)receivedPacket; // transmit packet TcpSecureRespondToAll( client.GetSecureMessage(safePacket), safePacket._packetSrc ); break; case Packet.PacketType.ERROR: //should be for other things, in another place Console.WriteLine("ERROR"); ErrorMessagePacket errPacket = (ErrorMessagePacket)receivedPacket; client.TcpSend(errPacket); break; case Packet.PacketType.ENDSESSION: Console.Write("ENDING TCP SESSION: " + client._name); // signal to client to close connections // and end while loop client.Close(); break; case Packet.PacketType.JOINGAME: Console.Write("JOIN GAME - "); JoinGamePacket joinGame = (JoinGamePacket)receivedPacket; Client host = null; foreach (Client user in _clients.Values) { if (user._name == joinGame._targetHost) { host = user; } } //ChatMessagePacket resultPacket = null; if (GameSession.Instance.JoinSession(ref client, host)) { Console.WriteLine("JOINED A GAME"); //success - msg client PrivateMessagePacket resultPacket = new PrivateMessagePacket(client._name, "Started Game Session") { _packetSrc = _serverName }; TcpRespondTo(resultPacket, client); //launch client's game client.TcpSend(joinGame); } else { Console.WriteLine("FAILED TO JOIN A GAME"); //failed - msg client }; break; case Packet.PacketType.USERLIST: Console.WriteLine("USERLIST"); UserListPacket userList = (UserListPacket)receivedPacket; if (userList._users == null) { List <string> usernames = new List <string>(); // collect user names foreach (KeyValuePair <int, Client> c in _clients) { usernames.Add(c.Value._name); } userList._users = usernames.ToArray(); TcpSendToAll(userList); } // if list is filled, why is it here?! break; case Packet.PacketType.LEAVEGAME: LeaveGamePacket leaveGame = (LeaveGamePacket)receivedPacket; // check game sessions bool wasHost = GameSession.Instance.IsHosting(client); // update game session List <string> players = GameSession.Instance.LeaveSession(ref client); ServerMessagePacket serverMessage = null; if (!leaveGame._wasForced) { serverMessage = new ServerMessagePacket (client._name + " has left the game.", null); } else { serverMessage = new ServerMessagePacket ("GAME ERROR: " + client._name + " was forced to leave the game.", null); } foreach (Client user in _clients.Values) { if (players.Contains(user._name)) { user.TcpSend(serverMessage); } } if (wasHost) { leaveGame._wasForced = true; foreach (Client user in _clients.Values) { user.TcpSend(leaveGame); } } break; default: break; } } } catch (Exception e) { Console.WriteLine("Error: " + e.Message); if (client != null) { Console.WriteLine("Client: " + client._name); } } client.Close(); _clients.TryRemove(index, out client); }
private void TCPClientMethod(int index) { Packet receivedPacket; //loop to allow continuous communication while((receivedPacket = _clients[index].TCPRead()) != null) { try { switch (receivedPacket.EPacketType) { case PacketType.EMPTY: EmptyPacket emptyPacket = (EmptyPacket)receivedPacket; break; case PacketType.CHATMESSAGE: ChatMessagePacket chatMessagePacket = (ChatMessagePacket)receivedPacket; try { //reencrypt data into new packet so that all the clients are able to decrypt it with their private key ChatMessagePacket sendPacket = new ChatMessagePacket(UTF8.GetBytes(_clients[index].clientData.clientNickname), chatMessagePacket.Message) { Time = chatMessagePacket.Time }; //send messages to all clients TCPSendPacketToAll(sendPacket); //print client messages to server console OutputLog(chatMessagePacket.Time + " " + _clients[index].clientData.clientNickname + ": " + UTF8.GetString(chatMessagePacket.Message)); } catch (Exception e) { OutputLog("[Error] " + e.Message + e.StackTrace); break; } break; case PacketType.COMMANDMESSAGE: CommandMessagePacket commandMessagePacket = (CommandMessagePacket)receivedPacket; //Process command ProcessCommand(_clients[index], UTF8.GetString(commandMessagePacket.Message)); break; case PacketType.CLIENTNAME: ClientNamePacket clientNamePacket = (ClientNamePacket)receivedPacket; bool uniqueName = true; for(int i = 0; i < _clients.Count; i++) { if(UTF8.GetString(clientNamePacket.ClientName) == _clients[i].clientData.clientNickname) { uniqueName = false; } } if(uniqueName) { OutputLog("[Nickname] " + _clients[index].clientData.clientNickname + " has changed their nickname to " + UTF8.GetString(clientNamePacket.ClientName) + "."); _clients[index].clientData.clientNickname = UTF8.GetString(clientNamePacket.ClientName); //Refresh client list ClientListPacket clientListPacket = new ClientListPacket(GetClientNames(), GetClientAddresses()); TCPSendPacketToAll(clientListPacket); //Send name change confirmation ServerMessagePacket serverMessagePacket = new ServerMessagePacket(UTF8.GetBytes("Your server nickname has been changed to " + UTF8.GetString(clientNamePacket.ClientName) + "!")); _clients[index].TCPSend(serverMessagePacket); } else { //Send name change failed ServerMessagePacket serverMessagePacket = new ServerMessagePacket(UTF8.GetBytes("Someone on this server already has the nickname '" + UTF8.GetString(clientNamePacket.ClientName) + "'. Please choose a different nickname!")); _clients[index].TCPSend(serverMessagePacket); } break; case PacketType.DISCONNECTREQUEST: DisconnectRequestPacket disconnectRequestPacket = (DisconnectRequestPacket)receivedPacket; //Announce client has joined to all clients ServerMessagePacket serverMessagePacket3 = new ServerMessagePacket(UTF8.GetBytes(_clients[index].clientData.clientNickname + " has left the server!")); TCPSendPacketToAll(serverMessagePacket3); _clients[index].Close(); break; case PacketType.LOGIN: LoginPacket loginPacket = (LoginPacket)receivedPacket; try { //set server client ip and client key _clients[index].clientData.ipEndPoint = loginPacket.EndPoint; _clients[index]._clientKey = loginPacket.PublicKey; //send server public key back ServerKeyPacket serverKeyPacket = new ServerKeyPacket(_clients[index]._publicKey, true); _clients[index].TCPSend(serverKeyPacket); _clients[index].successfulLogin = true; //Announce client has joined to all clients ServerMessagePacket serverMessagePacket2 = new ServerMessagePacket(UTF8.GetBytes(_clients[index].clientData.clientNickname + " has joined the server!")); TCPSendPacketToAll(serverMessagePacket2); //Refresh client list ClientListPacket clientListPacket2 = new ClientListPacket(GetClientNames(), GetClientAddresses()); TCPSendPacketToAll(clientListPacket2); break; } catch (Exception e) { OutputLog("[Error] " + e.Message + e.StackTrace); break; } } } catch (Exception e) { OutputLog("[Error] " + e.Message + e.StackTrace); break; } } try { _clients[index].Close(); //Take client out of client ConcurrentBag _clients.TryRemove(index, out Client c); } catch (Exception e) { OutputLog("[Error] " + e.Message + e.StackTrace); } }
private void ProcessCommand(Client client, string command) { try { ServerMessagePacket serverMessagePacket; ChatMessagePacket chatMessagePacket; string[] parameters = SplitCommandIntoParameters(command); ////////////////////////////////// switch ((parameters[0].ToUpper()).TrimStart('/')) { case "HELLO": //send server reponse serverMessagePacket = new ServerMessagePacket(UTF8.GetBytes("Hello!")); client.TCPSend(serverMessagePacket); break; case "PM": int clientDestination = -1; for(int i = 0; i < _clients.Count; i++) { if(parameters[1] == _clients[i].clientData.clientNickname) { //check if the destination is the same as the sender if(_clients[i] == client) { clientDestination = -2; break; } else { clientDestination = i; break; } } } //check if there is a message if(parameters[2] == null) { ServerMessagePacket serverMessagePacket1 = new ServerMessagePacket(UTF8.GetBytes("Please put a message after the nickname!")); client.TCPSend(serverMessagePacket1); } //check if client was found with name else if(clientDestination > -1) { //send private message to destination client PrivateMessagePacket privateMessagePacket = new PrivateMessagePacket(UTF8.GetBytes(client.clientData.clientNickname), UTF8.GetBytes(parameters[2].ToString())); _clients[clientDestination].TCPSend(privateMessagePacket); //send confirmation to user that their private message has been sent and has arrived PrivateMessagePacket privateMessagePacket1 = new PrivateMessagePacket(UTF8.GetBytes(parameters[2].ToString()), UTF8.GetBytes(_clients[clientDestination].clientData.clientNickname)); client.TCPSend(privateMessagePacket1); //log pm to server console OutputLog(privateMessagePacket.Time + " [PM] " + UTF8.GetString(privateMessagePacket.OriginClient) + " -> " + _clients[clientDestination].clientData.clientNickname + ": " + UTF8.GetString(privateMessagePacket.PrivateMessage)); } else if (clientDestination == -1) { ServerMessagePacket serverMessagePacket2 = new ServerMessagePacket(UTF8.GetBytes("Sorry that client does not exist. Please try again with a real nickname!")); client.TCPSend(serverMessagePacket2); } else if (clientDestination == -2) { ServerMessagePacket serverMessagePacket3 = new ServerMessagePacket(UTF8.GetBytes("You can't send private messages to yourself silly!")); client.TCPSend(serverMessagePacket3); } break; case "HELP": ServerMessagePacket serverMessagePacket4 = new ServerMessagePacket(UTF8.GetBytes("\nCommands: \n/HELLO - Hello! \n/PM [NAME] [MSG] - Send private messages! \n/ROLLDICE [NumOfDices] [NumOfFaces] - Roll dice! \n/ANNOUNCE [MSG] - Send an announcement message to everyone on the server!")); client.TCPSend(serverMessagePacket4); break; case "ROLLDICE": ServerMessagePacket serverMessagePacket5; if (!(String.IsNullOrEmpty(parameters[1]) || String.IsNullOrEmpty(parameters[2]))) { serverMessagePacket5 = new ServerMessagePacket(UTF8.GetBytes(RollDice(Int32.Parse(parameters[1]), Int32.Parse(parameters[2])))); } else { serverMessagePacket5 = new ServerMessagePacket(UTF8.GetBytes("Please input a value for all parameters!")); OutputLog(client.clientData.clientNickname + " has tried to roll dice without the correct number of parameters! (" + command + ")"); } client.TCPSend(serverMessagePacket5); break; case "ANNOUNCE": //get full announcement message int start = command.IndexOf(" "); string msg = command.Substring(start + 1, command.Length - (start + 1)); //send announcement message to all clients and server logs AnnouncementMessagePacket announcementMessagePacket = new AnnouncementMessagePacket(UTF8.GetBytes(msg)); TCPSendPacketToAll(announcementMessagePacket); OutputLog(msg); break; default: //send client chat message chatMessagePacket = new ChatMessagePacket(UTF8.GetBytes(client.clientData.clientNickname + ": "), UTF8.GetBytes(command)); client.TCPSend(chatMessagePacket); //send server reponse serverMessagePacket = new ServerMessagePacket(UTF8.GetBytes("Sorry that is not a command! For a list of commands type '/help'.")); client.TCPSend(serverMessagePacket); break; } } catch (Exception e) { OutputLog("[Error] " + e.Message + e.StackTrace); } }
private void TCPProcessServerResponse() { Packet receivedPacket; while ((receivedPacket = TCPRead()) != null) { try { switch (receivedPacket.EPacketType) { case PacketType.EMPTY: EmptyPacket emptyPacket = (EmptyPacket)receivedPacket; break; case PacketType.CHATMESSAGE: ChatMessagePacket chatMessagePacket = (ChatMessagePacket)receivedPacket; //Write message to client console Console.WriteLine(chatMessagePacket.Time + " " + UTF8.GetString(chatMessagePacket.OriginClient) + ": " + UTF8.GetString(chatMessagePacket.Message)); //Write message to client form _clientForm.UpdateChatWindow(chatMessagePacket.Time + " " + UTF8.GetString(chatMessagePacket.OriginClient) + ": " + UTF8.GetString(chatMessagePacket.Message)); break; case PacketType.PRIVATEMESSAGE: PrivateMessagePacket privateMessagePacket = (PrivateMessagePacket)receivedPacket; //Write pm to client console Console.WriteLine(privateMessagePacket.Time + " [PM] " + UTF8.GetString(privateMessagePacket.OriginClient) + " -> " + UTF8.GetString(privateMessagePacket.PrivateMessage)); //Write message to client form _clientForm.UpdateChatWindow(privateMessagePacket.Time + " [PM] " + UTF8.GetString(privateMessagePacket.OriginClient) + " -> " + UTF8.GetString(privateMessagePacket.PrivateMessage)); break; case PacketType.SERVERMESSAGE: ServerMessagePacket serverMessagePacket = (ServerMessagePacket)receivedPacket; //Write server response to client console Console.WriteLine(serverMessagePacket.Time + " [Server] -> " + UTF8.GetString(serverMessagePacket.Message)); //Write server response to client form _clientForm.UpdateChatWindow(serverMessagePacket.Time + " [Server] -> " + UTF8.GetString(serverMessagePacket.Message)); break; case PacketType.ANNOUNCEMESSAGE: AnnouncementMessagePacket announcementMessagePacket = (AnnouncementMessagePacket)receivedPacket; //Write announcement to client console Console.WriteLine(announcementMessagePacket.Time + " " + "[Announcement] -> " + UTF8.GetString(announcementMessagePacket.Message)); //Write announcement to client form _clientForm.UpdateChatWindow(announcementMessagePacket.Time + " " + "[Announcement] -> " + UTF8.GetString(announcementMessagePacket.Message)); break; case PacketType.SERVERKEY: ServerKeyPacket serverKeyPacket = (ServerKeyPacket)receivedPacket; _serverKey = serverKeyPacket.ServerKey; successfulLogin = serverKeyPacket.Successful; Console.WriteLine("Server Key Packet Received!"); break; case PacketType.CLIENTLIST: ClientListPacket clientListPacket = (ClientListPacket)receivedPacket; _clientForm.RefreshClientList(clientListPacket.ClientList, clientListPacket.ClientIPS); break; } } catch (SocketException e) { Console.WriteLine("[Error] " + e.Message + e.StackTrace); break; } } }
private static void HandlePacket(Client client, Packet packet) { Console.WriteLine("Transferred to handler"); switch (packet.packettype) { case PacketType.USER: client.clientNickname = ((UserPacket)packet).nickname; client.clientStatus = ((UserPacket)packet).status; userList(); break; case PacketType.CHATMESSAGE: string message = ((ChatMessagePacket)packet).message; ChatMessagePacket chatMessage = new ChatMessagePacket("[" + client.clientNickname + "]: " + message); foreach (Client c in clients) { c.send(chatMessage); } break; case PacketType.SERVER_MESSAGE: string servermessage = ((ServerMessagePacket)packet).message; ServerMessagePacket serverMessage = new ServerMessagePacket(serverPrefix + servermessage); foreach (Client c in clients) { c.send(serverMessage); } break; case PacketType.POKE: Console.WriteLine("got poker"); string poker = ((PokePacket)packet).poker; string pokee = ((PokePacket)packet).pokee; foreach (Client c in clients) { if (c.clientNickname == pokee) { c.send(new PokePacket(poker, pokee)); Console.WriteLine(c.clientNickname); } } break; case PacketType.COMMAND: switch (((CommandPacket)packet).command) { case "!roll": Random rnd = new Random(); int roll = rnd.Next(1, 99); ServerMessagePacket rollres = new ServerMessagePacket(serverPrefix + client.clientNickname + " rolled: " + roll); { foreach (Client c in clients) { c.send(rollres); } } break; default: break; } break; case PacketType.DISCONNECT: foreach (Client c in clients) { Console.WriteLine("Sending"); c.send(new ServerMessagePacket(serverPrefix + client.clientNickname + " has left the server.")); } break; } }
private void TcpProcessServerPacket() { Packet packet = new Packet(); while (_net.IsTcpConnected) { packet = _net.TcpReadPacket(); Debug("TcpProcessServerPacket: packet = " + packet); if (packet != null) { switch (packet._packetType) { case Packet.PacketType.EMPTY: /* do nothing */ break; case Packet.PacketType.CLIENTNAME: ClientNamePacket namePacket = (ClientNamePacket)packet; _win.name = namePacket._name; _nick = namePacket._name; break; case Packet.PacketType.CHATMESSAGE: ChatMessagePacket chatPacket = (ChatMessagePacket)packet; _win.UpdateChat(chatPacket._message); break; case Packet.PacketType.PRIVATEMESSAGE: PrivateMessagePacket privPacket = (PrivateMessagePacket)packet; _win.UpdateChat(privPacket._packetSrc + ": " + privPacket._message); break; case Packet.PacketType.LOGIN: Console.WriteLine("Logged in to server."); _net.TcpFinishLogin((LoginPacket)packet); break; case Packet.PacketType.SECUREMESSAGE: SecurePacket safePacket = (SecurePacket)packet; _win.UpdateChat( "Secure Message Received [" + safePacket._packetSrc + "]: " + _net.DecryptString(safePacket._data) ); break; case Packet.PacketType.ENDSESSION: Console.WriteLine("Disconnecting from server."); _net.Close(); break; case Packet.PacketType.JOINGAME: _win.StartGame(this); break; case Packet.PacketType.USERLIST: UserListPacket userList = (UserListPacket)packet; _win.UserList = userList._users; break; case Packet.PacketType.LEAVEGAME: LeaveGamePacket leaveGame = (LeaveGamePacket)packet; if (leaveGame._wasForced) { _win.StopGame(); } break; case Packet.PacketType.SERVERMESSAGE: ServerMessagePacket serverMessage = (ServerMessagePacket)packet; _win.UpdateChat(serverMessage._messageSent); break; } } } }