ASP.NET MVC 5 Example

This is for cshtml code

@model Models.LoginViewModel
@{
    Layout = null;
}



    
        
            
                
                    
                        @using (Html.BeginForm("Login", "Account", new { ReturnUrl = ViewBag.ReturnUrl }, FormMethod.Post, new { @class = "form-horizontal", role = "form" }))
                            {
                                @Html.AntiForgeryToken()
                        
                            
                        

Welcome to PCX

                            Not a member? @Html.ActionLink("Sign up now »", "SignUpForGuestUser", "Account", routeValues: null, htmlAttributes: new { id = "registerLink" })
                            
                        

Or

                            
                                Login with your account
                                @Html.ValidationSummary(true, String.Empty, new { @class = "alert-danger" })
                                @Html.ValidationMessageFor(m => m.UserName, String.Empty, new { @class = "alert-danger" })
                                @Html.TextBoxFor(m => m.UserName, new { @class = "form-control", placeholder = "User Name" })
                                @Html.ValidationMessageFor(m => m.Password, String.Empty, new { @class = "alert-danger" })
                                @Html.PasswordFor(m => m.Password, new { @class = "form-control", placeholder = "Password" })
                                
                                
                            
@Html.ActionLink("Forgot your password?", "ForgotPassword", null, new { @class = "forgot-pass" })
                        
}

This is Login controller with contain HttpPost, AllowAnonymous and ValidateAntiForgeryToken attribute.

        [HttpPost]
        [AllowAnonymous]
        [ValidateAntiForgeryToken]
        public async Task Login(LoginViewModel model, string returnUrl)
        {
            if (ModelState.IsValid)
            {
                var user = await UserManager.FindAsync(model.UserName, model.Password);
                if (user != null)
                {
                    await SignInAsync(user, model.RememberMe);
                    // Encrypt the ticket and Create the cookie.
                    EncryptTicketCookies(model);
                    return RedirectToLocal(returnUrl);
                }
                else
                {
                    ModelState.AddModelError("", Messages.InvalidUidPwd);
                }
            }

            // If we got this far, something failed, redisplay form
            return View(model);
        }

This is used for user Authentication.

        private async Task SignInAsync(ApplicationUser user, bool isPersistent)
        {
            AuthenticationManager.SignOut(DefaultAuthenticationTypes.ExternalCookie);
            var identity = await UserManager.CreateIdentityAsync(user, DefaultAuthenticationTypes.ApplicationCookie);
            AuthenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = isPersistent }, identity);
        }

This is used for Forms Authentication Ticket.

        private static void EncryptTicketCookies(LoginViewModel model)
        {
            bool createPersistentCookie = false;
            string UserData = GetUserData(model);
            //// Create and tuck away the cookie
            FormsAuthenticationTicket authTicket = new FormsAuthenticationTicket(1, model.UserName, DateTime.Now,   DateTime.Now.AddDays(1), createPersistentCookie, UserData);
            //// Encrypt the ticket.
            string encTicket = FormsAuthentication.Encrypt(authTicket);

            ////// Create the cookie.
            HttpCookie faCookie = new HttpCookie(FormsAuthentication.FormsCookieName, encTicket);
            System.Web.HttpContext.Current.Response.Cookies.Add(faCookie);
        }

This is used for RedirectToAction.

        private ActionResult RedirectToLocal(string returnUrl)
        {
            if (Url.IsLocalUrl(returnUrl))
            {
                return Redirect(returnUrl);
            }
            else
            {
                return RedirectToAction("Index", "Home");
            }
        }

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