public override Task OnDisconnected(bool stopCalled)
{
// test log - log user logging out of account
Trace.WriteLine("disconnected..." + Context.ConnectionId);
// init db
Db db = new Db();
// get logged in user's id
UserDTO userDto = db.Users.Where(x => x.Username.Equals(Context.User.Identity.Name)).FirstOrDefault();
int userId = userDto.Id;
// remove from db
if (db.OnlineUser.Any(x => x.Id.Equals(userId)))
{
OnlineUserDto onlineUser = db.OnlineUser.Find(userId);
db.OnlineUser.Remove(onlineUser);
db.SaveChanges();
}
// update chat - display newly logged in friends
UpdateChat();
// Return
return(base.OnDisconnected(stopCalled));
}
public override async Task OnDisconnectedAsync(Exception ex)
{
OnlineUserDto _loggedUser = GetLoggedUser();
if (_loggedUser != null && !string.IsNullOrWhiteSpace(_loggedUser.Id))
{
await _onlineUsersService.RemoveUserAsync(_loggedUser.Id);
}
await base.OnDisconnectedAsync(ex);
}
private void CheckOther(LoginType loginType)
{
var v_user = _userService.GetByUserId(_currentUserID);
if (v_user.RoleID == (int)Role.BlacklistUser)
{
LoginFailed(v_user, "您已被禁止登录", loginType);
return;
}
if (v_user.ExpiryTime <= DateTime.Now)
{
LoginFailed(v_user, "会员到期，请续费后登录", loginType);
return;
}
var onlineUsers = _onlineUserService.GetById(_currentUserID, "Fk_UserID");
int count = onlineUsers.Count;
if (count == 0)
{
}
else if (count < TcpServer.UserMaxLoginCount)
{
string ipAddress = onlineUsers.First().IPAddress;
try
{
IPAddress ip1 = IPAddress.Parse(ipAddress);
IPAddress ip2 = tcpSession.RemoteIPEndPoint.Address;
if (ip1.Equals(ip2) == false)
{
LoginFailed(v_user, "您已在其他设备登录了工具", loginType);
return;
}
}
catch (Exception ex)
{
throw new NetworkException("解析数据库已保存的IP地址错误，ip：" + ipAddress, ex);
}
}
else if (count >= TcpServer.UserMaxLoginCount)
{
LoginFailed(v_user, string.Format("您最多在同一设备上登录 {0} 个相同账号", TcpServer.UserMaxLoginCount), loginType);
return;
}
OnlineUserDto newOnlineUser = V_User2OnlineUser(v_user);
newOnlineUser.Key = Guid.NewGuid().ToString();
_onlineUserToken = newOnlineUser.Key;
_onlineUserService.Add(newOnlineUser);
LoginSuccess(v_user, loginType);
}
private OnlineUserDto GetLoggedUser()
{
try
{
OnlineUserDto user = new OnlineUserDto();
if (Context.User.Claims.Any())
{
user.Id = Context.User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.NameIdentifier).Value;
}
return(user);
}
catch (Exception ex)
{
return(null);
}
}
public override async Task OnConnectedAsync()
{
OnlineUserDto _loggedUser = GetLoggedUser();
if (!string.IsNullOrWhiteSpace(_loggedUser.Id))
{
if (_onlineUsersService.IsUserOnline(_loggedUser.Id))
{
_loggedUser.ConnectionId = Context.ConnectionId;
}
else
{
_loggedUser.ConnectionId = Context.ConnectionId;
await _onlineUsersService.AddOnlineUserAsync(_loggedUser);
}
}
await base.OnConnectedAsync();
}
public async Task <OnlineUserDto> AddOnlineUserAsync(OnlineUserDto onlineUserToAdd)
{
_logger.LogDebug("Trying to add online user.");
if (onlineUserToAdd == null)
{
throw new ArgumentNullException(nameof(onlineUserToAdd));
}
try
{
OnlineUser userToAdd = _mapper.Map <OnlineUser>(onlineUserToAdd);
OnlineUser addedUser = await _onlineUsersRepository.AddAsync(userToAdd);
await _onlineUsersRepository.SaveAsync();
return(_mapper.Map <OnlineUserDto>(addedUser));
}
catch (Exception ex)
{
_logger.LogError(ex, "Error occured during adding the user.");
throw;
}
}
public OnlineUserViewModel(OnlineUserDto dto)
{
Id = dto.Id;
ConnectionId = dto.ConnectionId;
}
public override Task OnConnected()
{
// test log - log user connection
// Trace.WriteLine("here i am..." + Context.ConnectionId);
Db db = new Db();
// get logged in user's id
UserDTO userDto = db.Users.Where(x => x.Username.Equals(Context.User.Identity.Name)).FirstOrDefault();
int userId = userDto.Id;
// get connection id
string connId = Context.ConnectionId;
// add online dto
if (!db.OnlineUser.Any(x => x.Id == userId))
{
OnlineUserDto onlineUser = new OnlineUserDto();
onlineUser.Id = userId;
onlineUser.ConnectionId = connId;
db.OnlineUser.Add(onlineUser);
db.SaveChanges();
}
// get all onnline ids
List <int> onlineIds = db.OnlineUser.ToArray().Select(x => x.Id).ToList();
// get friend ids
List <int> friendsIds1 = db.Friends.Where(x => x.User1 == userId && x.Active == true)
.ToArray().Select(x => x.User2).ToList();
List <int> friendsIds2 = db.Friends.Where(x => x.User2 == userId && x.Active == true)
.ToArray().Select(x => x.User1).ToList();
List <int> allFriendIds = friendsIds1.Concat(friendsIds2).ToList();
// get final set of ids
List <int> resultList = onlineIds.Where((i) => allFriendIds.Contains(i)).ToList();
// create a dictionary of friend ids and usernames
Dictionary <int, string> friends = new Dictionary <int, string>();
foreach (var id in resultList)
{
var users = db.Users.Find(id);
string friend = users.Username;
if (!friends.ContainsKey(id))
{
friends.Add(id, friend);
}
}
var transformed = from key in friends.Keys
select new { id = key, friend = friends[key] };
string json = JsonConvert.SerializeObject(transformed);
// set clients
var clients = Clients.Caller;
// call js function
clients.getonlinefriends(Context.User.Identity.Name, json);
UpdateChat();
// return
return(base.OnConnected());
}
