Login

[HttpPost]
        public IActionResult Login(UserLoggingInBindingModel model)
        {
            if (this.User.IsAuthenticated)
            {
                return this.RedirectToHome();
            }

            if (!this.IsValidModel(model))
            {
                this.BuildErrorView();
                return View();
            }

            User user;
            var passwordHash = PasswordUtilities.GetPasswordHash(model.Password);
            using (this.Context)
            {
                var users = this.Context.Users.AsQueryable();

                user = users
                    .AsEnumerable()
                    .FirstOrDefault(t => t.Username == model.Username && t.PasswordHash == passwordHash);
            }

            if (user == null)
            {
                this.BuildErrorView();
                return View();
            }

            this.SignIn(user.Username, user.Id);
            return this.RedirectToHome();
        }