public void Start()
{
IPEndPoint my_ip = new IPEndPoint(Tools.GetMyIP(), PORT);
Socket nw_obj = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
nw_obj.Bind(my_ip);
nw_obj.Listen(MAX_REQUEST_COUNT);
log.WriteLog("Сервер запущен. Ожидание подключений.");
ThreadPool.SetMaxThreads(MAX_REQUEST_COUNT, MAX_REQUEST_COUNT);
while (true)
{
Socket client_connection = nw_obj.Accept();
//Может быть косяк
log.WriteLog(Tools.GetIPFromSocket(client_connection) + " - Подключен");
ThreadPool.QueueUserWorkItem(new WaitCallback(delegate
{
ClientHandler client = new ClientHandler(client_connection, db, log, connections);
client.Start();
}));
}
}
catch (Exception ex) { /*дописать*/ MessageBox.Show(ex.Message); }
}
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();
}
}
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();
}
