public override Task OnDisconnected()
{
if (Context.User != null && Context.User.Identity.IsAuthenticated)
{
using (var chatContext = new ChatContext())
{
User user = chatContext.Users.FirstOrDefault(x => x.Name == Context.User.Identity.Name);
if (user != null)
{
user.LastActivity = DateTime.Now;
var connection = user.HubConnections.FirstOrDefault(x => x.ConnectionId == Context.ConnectionId);
if (connection != null)
chatContext.Entry(connection).State = EntityState.Deleted;
chatContext.Entry(user).State = EntityState.Modified;
chatContext.SaveChanges();
ChatUser chatUser = new ChatUser()
{
Id = user.Id,
Name = WebUtility.HtmlEncode(user.Name)
};
string[] userExistingConnections = user.HubConnections.Select(x => x.ConnectionId).ToArray();
Clients.AllExcept(userExistingConnections).userDisconnected(chatUser);
}
}
}
return base.OnDisconnected();
}
public ActionResult Create(ChatUser model)
{
AjaxTypedResult<ChatUser> result = new AjaxTypedResult<ChatUser>();
if (!User.Identity.IsAuthenticated && ModelState.IsValid)
{
using (var context = new ChatContext())
{
User user = context.Users.FirstOrDefault(x => x.Name == model.Name);
if (user == null)
{
User newUser = new User()
{
Name = model.Name,
LastActivity = DateTime.Now
};
context.Entry(newUser).State = EntityState.Added;
context.SaveChanges();
result.Model = new ChatUser()
{
Name = newUser.Name,
Id = newUser.Id
};
result.Success = true;
result.SuccessMessage = "Użytkownik został dodany.";
FormsAuthentication.SetAuthCookie(model.Name, true);
}
else
result.Errors.Add("Wystąpił błąd. Nazwa użytkownika jest zajęta.");
}
}
else
result.Errors.Add("Wystąpił błąd. Użytkownik jest już zalogowany lub nazwa jest niepoprawna.");
return this.JsonCamelCase(result);
}
public void SendMessage(string message)
{
ChatUser chatUser = null;
if (Context.User != null && Context.User.Identity.IsAuthenticated)
{
using (var chatContext = new ChatContext())
{
User user = chatContext.Users.FirstOrDefault(x => x.Name == Context.User.Identity.Name);
if (user != null)
{
user.LastActivity = DateTime.Now;
chatContext.Entry(user).State = EntityState.Modified;
chatContext.SaveChanges();
chatUser = new ChatUser()
{
Id = user.Id,
Name = user.Name
};
}
}
}
message = WebUtility.HtmlEncode(message);
message = message.Replace("\n", "<br />");
message = message.Replace("\r\n", "<br />");
ExpandUrlsParser urlsParser = new ExpandUrlsParser();
urlsParser.Target = "_blank";
message = urlsParser.ExpandUrls(message);
EmoticonParser emoticonParser = new EmoticonParser();
message = emoticonParser.Parse(message);
if (chatUser != null)
Clients.All.appendMessage(chatUser, message);
}