Bdtjtk

I'm routing users to a login-view if the session has expired, using an ActionFilterAttribute, like shown below.

Now, I want to keep the route data from the original request, so that I can route the user back to that view after logging in.

How can I send the original route data to the Login action method?

public class BaseController : Controller

{

    public int? BranchId {get => HttpContext.Session.GetInt32("BranchId") as int?;}

    public string Admin {get => HttpContext.Session.GetString("Admin") as string;}



    public BaseController() {}

}



public class AdminOrBranchesAccessAttribute : ActionFilterAttribute

{

    public override void OnActionExecuting(ActionExecutingContext context)

    {

        base.OnActionExecuting(context);



        if ((context.Controller as BaseController).Admin == null &&

            (context.Controller as BaseController).BranchId == null)

        {

            context.Result = new RedirectToRouteResult(new RouteValueDictionary(new

            {

                controller = "Home",

                action = "Login"

            }));

        }

    }

}



[AdminOrBranchesAccess]

public async Task<IActionResult> Details(int? id)

{

    // Some stuff going on

    return View();

}

For rediecting to previous action after login successfully, you need to provide return url for login action and set its value in OnActionExecuting.

1. 
   

   Change Login method like below with parameter returnUrl

   
   
   

   [HttpGet]
   
   [AllowAnonymous]
   
   public async Task<IActionResult> Login(string returnUrl = null)
   
   {
   
       // Clear the existing external cookie to ensure a clean login process
   
       await HttpContext.SignOutAsync(IdentityConstants.ExternalScheme);
   
   
   
       ViewData["ReturnUrl"] = returnUrl;
   
       return View();
   
   }
   
   
   
   [HttpPost]
   
   [AllowAnonymous]
   
   [ValidateAntiForgeryToken]
   
   public async Task<IActionResult> Login(LoginViewModel model, string returnUrl = null)
   
   {
   
       ViewData["ReturnUrl"] = returnUrl;
   
       if (ModelState.IsValid)
   
       {
   
           // This doesn't count login failures towards account lockout
   
           // To enable password failures to trigger account lockout, set lockoutOnFailure: true
   
           var result = await _signInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, lockoutOnFailure: true);
   
           if (result.Succeeded)
   
           {
   
               _logger.LogInformation("User logged in.");
   
               return RedirectToLocal(returnUrl);
   
           }
   
           if (result.RequiresTwoFactor)
   
           {
   
               return RedirectToAction(nameof(LoginWith2fa), new { returnUrl, model.RememberMe });
   
           }
   
           if (result.IsLockedOut)
   
           {
   
               _logger.LogWarning("User account locked out.");
   
               return RedirectToAction(nameof(Lockout));
   
           }
   
           else
   
           {
   
               ModelState.AddModelError(string.Empty, "Invalid login attempt.");
   
               return View(model);
   
           }
   
       }
   
   
   
       // If we got this far, something failed, redisplay form
   
       return View(model);
   
   }
   
   

   
   


2. 
   

   AdminOrBranchesAccessAttribute

   
   
   

   public class AdminOrBranchesAccessAttribute : ActionFilterAttribute
   
   {
   
       public override void OnActionExecuting(ActionExecutingContext context)
   
       {
   
           base.OnActionExecuting(context);
   
   
   
           if ((context.Controller as BaseController).Admin == null &&
   
               (context.Controller as BaseController).BranchId == null)
   
           {
   
               context.Result = new RedirectToRouteResult(new RouteValueDictionary(new
   
               {
   
                   controller = "Home",
   
                   action = "Login",
   
                   returnUrl = context.HttpContext.Request.Path
   
               }));
   
           }
   
       }
   
   }