/// <summary>
/// Try to register client. Send response about result.
/// </summary>
/// <param name="client">client.</param>
/// <param name="message">client's message.</param>
private void RegisterClient(MpClient client, RegisterRequestMessage message)
{
Message response;
if (string.IsNullOrEmpty(message.Login) ||
string.IsNullOrEmpty(message.Password) ||
message.Login.Length > 20 ||
message.Password.Length > 30)
{
response = new LoginRegisterResponseMessage { Response = LoginRegisterResponse.Error };
}
else
{
if (DBoperations.Register(message.Login, message.Password))
{
log.Info($"Client registered: {message.Login}");
response = new LoginRegisterResponseMessage { Response = LoginRegisterResponse.Success };
}
else
{
response = new LoginRegisterResponseMessage { Response = LoginRegisterResponse.Fail };
}
}
try
{
// response to client
client.SendMessage(response);
}
catch (ConnectionInterruptedException e)
{
log.Error(e);
}
// close connection
log.Info($"Client disconnected. ip {((IPEndPoint)client.tcpClient.Client.RemoteEndPoint).Address.ToString()}");
try
{
client.Close();
}
catch (ConnectionInterruptedException e)
{
log.Error(e);
}
}
/// <summary>
/// Try to login client. Send response about result.
/// </summary>
/// <param name="client">client.</param>
/// <param name="message">client's message.</param>
private void LoginClient(MpClient client, LoginRequestMessage message)
{
bool isLoggedIn = false;
Message response;
if (string.IsNullOrEmpty(message.Login) ||
string.IsNullOrEmpty(message.Password) ||
message.Login.Length > 20 ||
message.Password.Length > 30)
{
response = new LoginRegisterResponseMessage { Response = LoginRegisterResponse.Error };
}
else if (usersHandler.GetOnlineUser(message.Login) != null)
{
response = new LoginRegisterResponseMessage { Response = LoginRegisterResponse.AlreadyLogin };
}
else
{
int id; // client's id in db
if (DBoperations.Login(message.Login, message.Password, out id))
{
log.Info($"Client login: {message.Login}");
// user is online
OnlineUser user = new OnlineUser(id, message.Login, client);
usersHandler.AddUser(user);
isLoggedIn = true;
response = new LoginRegisterResponseMessage { Response = LoginRegisterResponse.Success };
}
else
{
response = new LoginRegisterResponseMessage { Response = LoginRegisterResponse.Fail };
}
}
try
{
// response to client
client.SendMessage(response);
}
catch (ConnectionInterruptedException e)
{
log.Error(e);
}
// close connection with client if client not logged in
if (!isLoggedIn)
{
log.Info($"Client disconnected. ip {((IPEndPoint)client.tcpClient.Client.RemoteEndPoint).Address.ToString()}");
try
{
client.Close();
}
catch (ConnectionInterruptedException e)
{
log.Error(e);
}
}
}
/// <summary>
/// Create user.
/// </summary>
/// <param name="id">client's id in db.</param>
/// <param name="login">client's login.</param>
/// <param name="client">client.</param>
public OnlineUser(int id, string login, MpClient client)
{
Id = id;
Login = login;
Client = client;
}
/// <summary>
/// Handle client.
/// </summary>
/// <param name="client">Connected client.</param>
private async Task HandleClient(MpClient client)
{
log.Info($"Client connected. ip {((IPEndPoint)client.tcpClient.Client.RemoteEndPoint).Address.ToString()}");
await Task.Run(() =>
{
try
{
// recieve client's message
Message message = client.ReceiveMessage();
// login / register
if (message != null)
{
if (message is LoginRequestMessage)
LoginClient(client, (LoginRequestMessage)message);
else if (message is RegisterRequestMessage)
RegisterClient(client, (RegisterRequestMessage)message);
}
}
catch (ConnectionInterruptedException e)
{
log.Error(e);
log.Info($"Client disconnected. ip {((IPEndPoint)client.tcpClient.Client.RemoteEndPoint).Address.ToString()}");
}
});
}
public Client()
{
// get data from connection.cfg
XDocument doc = XDocument.Load("connection.config");
var _ip = doc.Descendants("ip");
ip = "";
foreach (var i in _ip) ip = i.Value;
var _port = doc.Descendants("port");
port = 0;
foreach (var i in _port) port = int.Parse(i.Value);
OnlineFriendsList = null;
OfflineFriendsList = null;
OnlineUsersList = null;
OfflineUsersList = null;
IncomeRequestsList = null;
OutcomeRequestsList = null;
Name = null;
client = new MpClient();
Conversations = new Conversations();
ConnectionBreaks += delegate { isLoggedIn = false; };
}
