Feature/admin (#831)

* fix redirect to login for admin page
fix logout

* add admin part url

Co-authored-by: cedri <cedri@BAS>

src/BlazorAdmin/CustomAuthStateProvider.cs

@@ -63,7 +63,7 @@ public class CustomAuthStateProvider : AuthenticationStateProvider
 
         if (user == null || !user.IsAuthenticated)
         {
-            return null;
+            return new ClaimsPrincipal(new ClaimsIdentity());
         }
 
         var identity = new ClaimsIdentity(

src/BlazorAdmin/Pages/Logout.razor

@@ -7,7 +7,7 @@
 
     protected override async Task OnInitializedAsync()
     {
-        await HttpClient.PostAsync("Identity/Account/Logout", null);
+        await HttpClient.PostAsync("User/Logout", null);
         await new Route(JSRuntime).RouteOutside("/Identity/Account/Login");
     }
 

src/BlazorAdmin/Shared/RedirectToLogin.razor

@@ -1,9 +1,12 @@
-@inject NavigationManager Navigation
+@using System.Web;
+
+@inject NavigationManager Navigation
+@inject IJSRuntime JsRuntime
 
 @code {
     protected override void OnInitialized()
-    {
-        Navigation.NavigateTo($"Identity/Account/Login?returnUrl=" +
-            $"/{Uri.EscapeDataString(Navigation.ToBaseRelativePath(Navigation.Uri))}");
+    {       
+        var returnUrl = HttpUtility.UrlEncode($"/{Uri.EscapeDataString(Navigation.ToBaseRelativePath(Navigation.Uri))}");
+        JsRuntime.InvokeVoidAsync("location.replace", $"Identity/Account/Login?returnUrl={returnUrl}");
     }
 }