public void Run()
{
_broadcaster = new Broadcaster();
IPAddress ip = IPAddress.Parse(_servername);
TcpListener listener = new TcpListener(ip, _port);
/* Gør så at serveren kan skrive input*/
Thread serverInputThread = new Thread(HandleInput);
serverInputThread.Start();
_running = true;
listener.Start();
Console.WriteLine("Skriv \'new\' for at starte en ny auktion.");
while (_running)
{
System.Console.WriteLine("Server klar til bruger");
/* En socket forbinder*/
Socket clientSocket = listener.AcceptSocket();
/* Lav en ny client handler til forbindelsen */
ClientHandler handler = new ClientHandler(clientSocket, _broadcaster);
handler.SetAuction(_auction);
/* Start det i en ny tråd */
Thread clientThread = new Thread(handler.RunClient);
/* Start trådene */
clientThread.Start();
}
}
public void StartThread()
{
IPAddress address = IPAddress.Parse(GetPublicIp());
TcpListener listener = new TcpListener(IPAddress.Any, 56931);
listener.Start();
_server.SetLabelText(address.ToString(), "Online", Color.DarkGreen);
while (true)
{
ClientHandler client = new ClientHandler(listener.AcceptTcpClient(), _server);
}
}
public void AddClient(ClientHandler client)
{
onlineUsers.Add(client.Username, client);
Packet packet = new Packet();
packet.Flag = Flag.AddClient;
packet.Data = client.Username;
foreach (ClientHandler clientHandler in onlineUsers.Values)
{
if (client != clientHandler)
{
clientHandler.send(packet);
}
}
}
public ServerMain()
{
onlineUsers = new Dictionary<string, ClientHandler>();
currentGames = new Dictionary<string, List<Game>>();
TcpListener listener = new TcpListener(System.Net.IPAddress.Any, 1330);
listener.Start();
while (true)
{
Console.WriteLine("Listening...");
try
{
TcpClient tcpClient = listener.AcceptTcpClient();
ClientHandler clientHandler = new ClientHandler(tcpClient, this);
Console.WriteLine("Client connected.");
}
catch (Exception)
{
Console.WriteLine("disconnected? I dunnooooooo");
}
}
}
private static void AcceptConnections()
{
Console.WriteLine("Accepting connections");
Console.WriteLine("");
while (IsRunning)
{
TcpClient IncomingClient;
try
{
IncomingClient = listener.AcceptTcpClient();
ClientHandler handler = new ClientHandler(IncomingClient);
handler.ClientHandlerStop += Handler_ClientHandlerStop;
handler.ID = count;
count++;
handler.Start();
Handlers.Add(handler);
}
catch (SocketException e)
{
if (e.SocketErrorCode == SocketError.Interrupted)
{
Console.WriteLine("Quitting...");
}
else
{
Console.WriteLine("Error occured: " + e.ToString());
}
}
}
foreach (ClientHandler ch in Handlers)
{
ch.Stop();
}
}
public void handshakeHandler(ClientHandler client, Packet packet)
{
HandshakeRequest request = (HandshakeRequest) packet.Data;
client.Username = request.Username;
Packet rePacket = new Packet();
rePacket.Flag = Flag.HandshakeResponse;
HandshakeResponse response = new HandshakeResponse();
if (onlineUsers.ContainsKey(client.Username))
{
response.Response = Response.INVALIDLOGIN;
Console.WriteLine("Invalid login received");
}
else
{
response.Response = Response.OK;
AddClient(client);
SendOnlineList(client);
Console.WriteLine("Client accepted.");
}
rePacket.Data = response;
client.send(rePacket);
}
public virtual byte [] ProcessDataReceived(byte [] data, ClientHandler ch, int len)
{
return(null);
}
//Data Manager
//gillt für alle verbundenen Clients
public static void DataManager(Packet p)
{
try
{
//warten bis Packet verarbeitet wird --> Socket bereit
Thread.Sleep(100);
//----------------
ClientData client = ClientHandler.GetClientByID(p.SenderId);
if (client == null)
{
return;
}
//Anmeldunsfreie Packete+++++++++++++++++++++++++++++++++++++++++++++++
if (PublicPacketHandler(p, client))
{
return; //packet ist bereits bearbeitet
}
//Anmeldungspflicht+++++++++++++++++++++++++++++++++++++++++++++++++++++
//Console.WriteLine(client.id);
//Console.WriteLine(ClientHandler.checkLoginState(client.id));
if (!ClientHandler.checkLoginState(client.id))
{
ClientHandler.Send_Error_Message_to_Client(client, "Bitte Anmeldung durchführen!");
return;
}
//Angemeldet: (gesicherter Bereich)
//Console.WriteLine("received " + p.PacketType);
switch (p.PacketType)
{
case PacketType.Default:
//zum Testen
Thread.Sleep(500);
ClientHandler.Ausgabe("Debug", "packet Default received");
ClientHandler.SendSinglePacket(client, p);
break;
case PacketType.GetGewählteKurse:
GetKurse(client);
break;
case PacketType.GetAlleKurse:
Kurswahl(client);
break;
case PacketType.KursUpdate:
UpdateKurse(client, p);
break;
case PacketType.GetSchülerInKurs:
GetSchülerInKurs(client, p);
break;
case PacketType.GetSchülerInKlasse:
GetSchülerInKlasse(client, p);
break;
case PacketType.GetChat:
GetChat(client);
break;
case PacketType.SendChatNachricht:
SendChatNachricht(client, p);
break;
case PacketType.GetEreignisse:
GetEreignisse(client);
break;
case PacketType.SendEreigniss:
SendEreigniss(client, p);
break;
case PacketType.KlasseErstellen:
KlasseErstellen(client, p);
break;
case PacketType.GetKlasse:
getKlasse(client);
break;
case PacketType.CreateKurs:
CreateKurs(client, p);
break;
case PacketType.GetLehrer:
GetLehrer(client);
break;
case PacketType.DeleteEreignis:
DeleteEreignis(client, p);
break;
case PacketType.EditEreigniss:
EditEreigniss(client, p);
break;
case PacketType.GetLehrerofKurs:
GetLehrerofKurs(client, p);
break;
default:
ClientHandler.Send_Error_Message_to_Client(client, "Unerwartetes Packet!!!");
break;
}
}
catch (Exception exc)
{
ClientHandler.Ausgabe("PacketManager", exc.Message);
}
}
public void SetConnectFour(ClientHandler client, Packet packet)
{
ConnectFour data = packet.Data as ConnectFour;
if (data != null)
{
foreach (Game currentGame in currentGames[client.Username])
{
if (currentGame.Players.Contains(data.Opponent))
{
if (currentGame is ServerConnectFour)
{
((ServerConnectFour) currentGame).Set(client.Username, data);
}
}
}
}
}
public void SendOnlineList(ClientHandler client)
{
List<string> users = new List<string>(onlineUsers.Keys);
Packet packet = new Packet();
packet.Flag = Flag.OnlineUserList;
packet.Data = users;
client.send(packet);
}
private bool clientExists(ClientHandler scl)
{
return _clients.Contains(scl);
}
public void Enqueue(ClientHandler client)
{
SyncdQ.Enqueue(client);
}
private static void Main(string[] args)
{
if (args is null)
{
throw new ArgumentNullException(nameof(args));
}
TcpListener server = null;
TcpClient clientSocket = null;
try
{
//read from the file
X509Certificate2 serverCertificate = new X509Certificate2(_serverCertificateFile, _serverCertificatePassword);
// Set the TcpListener on port 43594 at localhost.
int port = 43594;
IPAddress localAddr = IPAddress.Parse("127.0.0.1");
server = new TcpListener(localAddr, port);
//Creates a socket for client communication
clientSocket = default;
// Start listening for client requests.
server.Start();
Console.WriteLine("TcpListener Started.");
/*
* Read All chatrooms that are serialized or in database here and add them to the list
*/
Room globalChat = new Room("Daniel", "Global", true);
Rooms.Add("Global", globalChat);
/*
* Enter the listening loop. This will accept a TCP client and then attempt to authenticate the user.
* If the user is authenticated, a thread will be created to handle the client communication of the user,
* while the loop continues listening for new client connections.
*/
while (true)
{
clientSocket = server.AcceptTcpClient();
string clientIP = ((IPEndPoint)clientSocket.Client.RemoteEndPoint).Address.ToString();
Console.WriteLine("Incoming client connection from: " + clientIP);
SslStream sslStream = new SslStream(clientSocket.GetStream(), false, App_CertificateValidation);
Console.WriteLine("Accepted client " + clientSocket.Client.RemoteEndPoint.ToString());
sslStream.AuthenticateAsServer(serverCertificate, true, SslProtocols.Tls12, false);
Console.WriteLine("SSL authentication completed.");
// Read the username and password of incoming connection.
BinaryReader reader = new BinaryReader(sslStream);
string userName = reader.ReadString();
string password = reader.ReadString();
string chatRoom = reader.ReadString();
bool authResult = false;
string authMessage = string.Empty;
//create folder if it doesn't exist
Directory.CreateDirectory("./Users");
User user = new User();
if (File.Exists("./Users/" + userName + ".xml")) //load user info if user exists
{
user = DeSerializeObject <User>("./Users/" + userName + ".xml");
}
else //if user does not exist, create one
{
user.Username = userName;
string saltedHashPassword = GenerateKeyHash(password);
user.Password = saltedHashPassword;
SerializeObject <User>(user, "./Users/" + userName + ".xml");
}
if (!ComparePasswords(user.Password, password))
{
authResult = false;
authMessage = "Your password or username is incorrect.";
}
else if (Rooms.TryGetValue(chatRoom, out Room r))
{
if (r.IsUsedLoggedIn(userName))
{
authResult = false;
authMessage = "You are already logged in.";
}
else
{
authResult = true;
}
}
else
{
authResult = true;
}
// send the authentication results back to the client if it failed
if (!authResult)
{
BinaryWriter writer = new BinaryWriter(sslStream);
writer.Write(authResult);
writer.Write(authMessage);
writer.Close();
sslStream.Close();
}
else
{
BinaryWriter writer = new BinaryWriter(sslStream);
writer.Write(authResult);
writer.Write(authMessage);
Console.WriteLine(user.Username + " has connected from: " + clientIP);
user.PublicKey = reader.ReadString();
ClientHandler client = new ClientHandler(sslStream, user);
client.Start();
}
}
}
catch (SocketException e)
{
Console.WriteLine("SocketException: {0}", e);
}
finally
{
// Stop listening for new clients.
server.Stop();
clientSocket.Close();
}
// Placed this read input to stop it from closing immedietely due to exceptions, so we can see what the issue is.
Console.WriteLine("\nHit enter to continue...");
Console.Read();
}
static void Main(string[] args)
{
Console.Write("~");
string input = Convert.ToString(Console.ReadLine());
if (input == "start")
{
Console.Write("what port would you like the server to be hosted on?: ");
try
{
port = Convert.ToInt32(Console.ReadLine());
}
catch (OverflowException)
{
Console.WriteLine("What in tarnation! that port is not valid! Try another port.");
}
catch (FormatException)
{
Console.WriteLine("That isnt a number, mate. Try again");
}
Console.Write("Would you like a password?");
string passStr = Convert.ToString(Console.ReadLine());
passStr = passStr.ToLower();
if (passStr == "yes" || passStr == "y")
{
Console.Write("Please enter the password you would like for your chatroom: ");
string password = (Console.ReadLine());
Console.Write("Confirm? [y/n]");
string dec = Convert.ToString(Console.ReadLine());
dec = dec.ToLower();
if (dec == "y")
{
Console.Write("Confirmed. Now listening on " + port + " with password");
}
else
{
//not confirmed message
}
}
else
{
Console.Write("What is the IP of this machine? ");
string ipIn = Convert.ToString(Console.ReadLine());
IPAddress ipA = Dns.Resolve(ipIn).AddressList[0];
Console.WriteLine("Now listening on port " + port);
TcpListener servSock = new TcpListener(ipA, port);
TcpClient clientsock = default(TcpClient);
int count = 0;
servSock.Start();
while ((true))
{
count++;
clientsock = servSock.AcceptTcpClient();
byte[] bytesFrom = new byte[10025];
string clientData = null;
Random rand0 = new Random();
NetworkStream netstr = clientsock.GetStream();
netstr.Read(bytesFrom, 0, bytesFrom.Length);
clientData = Encoding.ASCII.GetString(bytesFrom);
clientData = clientData.Substring(0, clientData.IndexOf("$"));
CL.Clear();
try
{
CL.Add(clientData, clientsock);
}
catch
{
int temp0 = rand0.Next(0, 1111);
string temp1 = Convert.ToString(temp0);
clientData = clientData + temp1;
CL.Add(clientData, clientsock);
}
transmit(clientData + " Has Arrived \n", clientData, false);
ClientHandler client0 = new ClientHandler();
Console.WriteLine(clientData + " Has Arrived ");
client0.ClientStart(clientsock, clientData, CL);
}
}
}
}
public virtual byte[] ProcessDataReceived( byte [] data, ClientHandler ch, int len )
{
return null;
}
public void RemoveClient(ClientHandler client)
{
onlineUsers.Remove(client.Username);
//TODO close games of this user.
//TODO remove user from dictionaries.
Packet packet = new Packet();
packet.Flag = Flag.RemoveClient;
packet.Data = client.Username;
foreach (ClientHandler clientHandler in onlineUsers.Values)
{
clientHandler.send(packet);
}
client.Disconnect();
}
private ClientHandler retrieveConnectedClient(TcpClient cl)
{
IPEndPoint ip = cl.Client.RemoteEndPoint as IPEndPoint;
ClientHandler scl = new ClientHandler() { Ip = ip};
cl.NoDelay = true;
scl.Client = cl;
return scl;
}
private void startClient(ClientHandler cl)
{
if (cl != null)
{
ThreadPool.QueueUserWorkItem(new WaitCallback(cl.listen),null);
addNewClient(cl);
}
}
public void SetChat(ClientHandler client, Packet packet)
{
ChatMessage msg = (ChatMessage) packet.Data;
if (msg.Receiver == "BROADCAST")
{
foreach (ClientHandler clientHandler in onlineUsers.Values)
{
clientHandler.send(packet);
}
}
else
{
ClientHandler clientHandler = onlineUsers[msg.Receiver];
clientHandler.send(packet);
client.send(packet);
}
}
private void addNewClient(ClientHandler cl)
{
if (!_clients.Contains(cl)) _clients.Add(cl);
}
public void SetRPSLS(ClientHandler client, Packet packet)
{
RockPaperScissorsLizardSpock data = packet.Data as RockPaperScissorsLizardSpock;
if (data != null)
{
foreach (Game currentGame in currentGames[client.Username])
{
if (currentGame.Players.Contains(data.Opponent))
{
if (currentGame is ServerRPSLS)
{
((ServerRPSLS) currentGame).Set(client.Username, data);
}
}
}
}
}
public void removeClient(ClientHandler cl)
{
// DC the client first ?!
_clients.Remove(cl);
}
private static void UpdateAll()
{
Packet contentChanged = new Packet(PacketType.UpdateAll);
ClientHandler.SendPacketToAllLoggedInClients(contentChanged);
}
/* Subscribe fra listen */
public void Subscribe(ClientHandler client)
{
_clients.Add(client);
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Public Packets
static bool PublicPacketHandler(Packet p, ClientData client)
{
Packet response = null;
switch (p.PacketType)
{
case PacketType.SchülerLogin:
//DB----- Try Login
ClientHandler.Ausgabe("Auth", "Email: " + p.Data["email"] + " Passwort: " + p.Data["passwort"] + " try to login");
DatenbankArgs args = client.db_Manager.Schüler.login(p.Data["email"].ToString(), p.Data["passwort"].ToString());
if (args.Success)
{
ClientHandler.ClientLogin(client.id); //In liste schreiben
//Console.WriteLine(ClientHandler.checkLoginState(client.id));
//Daten speichern
client.email = p.Data["email"].ToString(); //email als Erkennungsmerkmal setzen
client.name = (string)args.Data.Rows[0]["S_Name"];
client.vname = (string)args.Data.Rows[0]["S_Vorname"];
client.SetAutorKürzel();
ClientHandler.Ausgabe("Auth", client.vname + "." + client.name + "." + client.email + " (Schüler) eingeloggt");
}
else
{
ClientHandler.Ausgabe("Auth", p.Data["email"] + " Login fehlgeschlagen!");
}
response = new Packet(PacketType.SchülerLogin, args.Data, args.Success, args.Error);
//------
break;
case PacketType.LehrerLogin:
//DB----- Try Login
ClientHandler.Ausgabe("Auth", "Email: " + p.Data["email"] + " Passwort: " + p.Data["passwort"] + " try to login");
args = client.db_Manager.Lehrer.login(p.Data["email"].ToString(), p.Data["passwort"].ToString());
if (args.Success)
{
ClientHandler.ClientLogin(client.id); //In liste schreiben
client.email = p.Data["email"].ToString(); //email als Erkennungsmerkmal setzen
client.name = (string)args.Data.Rows[0]["L_Name"];
client.vname = (string)args.Data.Rows[0]["L_Vorname"];
client.SetAutorKürzel();
client.hasRights = true;
ClientHandler.Ausgabe("Auth", client.vname + "." + client.name + "." + client.email + " (Lehrer) eingeloggt");
}
else
{
ClientHandler.Ausgabe("Auth", p.Data["email"] + " Login fehlgeschlagen!");
}
response = new Packet(PacketType.LehrerLogin, args.Data, args.Success, args.Error);
//------
break;
case PacketType.SchülerRegistraition: //Register Schüler
args = client.db_Manager.Schüler.add(p.Data["name"].ToString(), p.Data["vname"].ToString(), p.Data["phone"].ToString(), p.Data["email"].ToString(), p.Data["klasse"].ToString(), p.Data["passwort"].ToString());
if (args.Success)
{
ClientHandler.Ausgabe("Auth", p.Data["email"] + " wurde erfolgreich registriert");
}
else
{
ClientHandler.Ausgabe("Auth", p.Data["email"] + " Registrierung fehlgeschlagen!");
}
response = new Packet(PacketType.SchülerRegistraition, args.Data, args.Success, args.Error);
break;
case PacketType.LehrerRegistraition: //Register Lehrer
if ((string)p.Data["lehrerPasswort"] != lehrerPasswort)
{
args = new DatenbankArgs("Lehrer Passwort falsch.\n Versuchen Sie es erneut.");
}
else
{
args = client.db_Manager.Lehrer.add(p.Data["vname"].ToString(), p.Data["name"].ToString(), p.Data["anrede"].ToString(), p.Data["email"].ToString(), p.Data["passwort"].ToString(), p.Data["titel"].ToString());
}
if (args.Success)
{
ClientHandler.Ausgabe("Auth", p.Data["email"] + " wurde erfolgreich registriert");
}
else
{
ClientHandler.Ausgabe("Auth", p.Data["email"] + " Registrierung fehlgeschlagen!");
}
response = new Packet(PacketType.LehrerRegistraition, args.Data, args.Success, args.Error);
break;
case PacketType.Klassenwahl:
response = Klassenwahl(client);
break;
}
if (response != null)
{
ClientHandler.SendSinglePacket(client, response);
//ClientHandler.Ausgabe("Auth", "Anfrage wurde bearbeitet");
return(true);
}
return(false);
}
/* Unsubscribe fra listen */
public void Unsubscribe(ClientHandler client)
{
_clients.Remove(client);
}
public void Run()
{
string received;
while (true)
{
try
{
byte[] Buffer = new byte[255];
int rec = s.Receive(Buffer, 0, Buffer.Length, 0);
Array.Resize(ref Buffer, rec);
received = Encoding.Default.GetString(Buffer);
Console.WriteLine(received);
string[] st = received.Split('#');
string recipient = st[0];
string MsgToSend = st[1];
if (MsgToSend.Equals("logout"))
{
dSockets.Remove(recipient);
this.isloggedin = false;
this.s.Close();
break;
}
if (strr[0].Equals(" "))
{
foreach (KeyValuePair <string, ClientHandler> val in dSockets)
{
ClientHandler mc = (ClientHandler)val.Value;
if (!(mc.name.Equals(recipient)) && mc.isloggedin == true)
{
byte[] sData = Encoding.Default.GetBytes(this.name + " : " + MsgToSend);
mc.s.Send(sData, 0, sData.Length, 0);
}
}
}
dSockets.TryGetValue(recipient, out kk);
foreach (KeyValuePair <string, ClientHandler> val in dSockets)
{
ClientHandler mc = (ClientHandler)val.Value;
for (int i = 0; i < kk.strr.Length; i++)
{
if (!(mc.name.Equals(recipient)) && mc.isloggedin == true && mc.name.Equals(kk.strr[i]))
{
byte[] sData = Encoding.Default.GetBytes(this.name + " : " + MsgToSend);
mc.s.Send(sData, 0, sData.Length, 0);
break;
}
}
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
}
public void Enqueue(ClientHandler client)
{
SyncdQ.Enqueue(client) ;
}
