public void Start()
{
int currentId = Constants.FirstUserId;
TcpListener ServerSocket = new TcpListener(IPAddress.Any, Port);
ServerSocket.Start();
Logger.Info($"Server \"{ServerUser.Name}\" started at {GlobalIPAddress.GetGlobalIPAddress()}:{Port}");
while (true)
{
TcpClient client = ServerSocket.AcceptTcpClient();
var chatClient = ChatClient.Create(currentId, client);
chatClient.Locker = Locker;
lock (Locker)
Clients.Add(chatClient);
ChatMail.SendMessage(ChatMessage.Create(MessageCode.ServerName, ServerUser,
new ChatUser(currentId), DateTime.Now, ChatMessageText.CreateEmpty()), currentId);
Logger.Info($"#{currentId} connected!");
Thread t = new Thread(HandleClients);
t.Start(currentId);
currentId += Constants.UserIdIncrementValue;
}
}
private void OnRegistration(ChatMessage message)
{
Logger.Debug($"Registration new user: {message.Sender.Name}.");
Clients[message.Sender.Id].Name = message.Sender.Name;
ChatMail.SendMessage(ChatMessage.Create(MessageCode.NewUser, ServerUser, null, DateTime.Now, ChatMessageText.Create(message.Sender.ToString())));
ChatMail.SendMessage(ChatMessage.Create(MessageCode.ServerUsers, ServerUser, message.Sender,
DateTime.Now, ChatMessageText.Create(String.Join(" ", Clients.RegestredUsers.Where(user => user.Id != message.Sender.Id).Select(user => user.User)))), message.Sender.Id);
}
public TCPChatServer(int port, string serverName, ILogger logger)
{
lock (Locker)
{
Port = port;
ServerUser = new ChatUser(Constants.ServerId, serverName);
Logger = logger;
}
ChatMail = new ChatMail(Clients);
mMessageHandlers = new MessageHandlersService(this);
}
private void OnNewUserMessage(ChatMessage message)
{
if (message.Recipient is null)
{
throw new ArgumentException(nameof(message));
}
if (!message.Sender.Equals(message.Recipient))
{
ChatMail.SendMessage(ChatMessage.Create(MessageCode.RepeatMessage, message.Sender,
message.Recipient, message.Date, message.Message), message.Sender.Id);
}
ChatMail.SendMessage(message, message.Recipient.Id);
}
private void HandleClients(object clientId)
{
int id = (int)clientId;
TcpClient client;
lock (Locker)
client = (Clients[id] as ChatClient)?.Client;
try
{
while (true)
{
NetworkStream stream = client.GetStream();
byte[] buffer = new byte[Constants.MessageSize];
int byte_count = stream.Read(buffer, 0, buffer.Length);
if (byte_count == 0)
{
break;
}
string data = Encoding.UTF8.GetString(buffer, 0, byte_count);
HandleMessage(ChatMessage.Parse(data));
}
}
catch (Exception e)
{
Logger.Error(e.Message);
Logger.Error($"Error: #{id} lost connection.");
}
finally
{
lock (Locker)
Clients.Remove(id);
ChatMail.SendMessage(ChatMessage.Create(MessageCode.UserLeave, ServerUser,
null, DateTime.Now, ChatMessageText.Create(id.ToString())));
Logger.Info($"#{id} has left.");
client.Client.Shutdown(SocketShutdown.Both);
client.Close();
}
}
private void OnNewUserPublicMessage(ChatMessage message)
{
ChatMail.SendMessage(message);
}
