Resolved #8972: Blazor WASM: Support applications without authentication.

framework/src/Volo.Abp.AspNetCore.Components.Web.BasicTheme/Themes/Basic/AppWithoutAuth.razor

@@ -0,0 +1,14 @@
+@using Microsoft.Extensions.Options
+@using Volo.Abp.AspNetCore.Components.Web.Theming.Routing
+@inject IOptions<AbpRouterOptions> RouterOptions
+<Router AppAssembly="RouterOptions.Value.AppAssembly"
+        AdditionalAssemblies="RouterOptions.Value.AdditionalAssemblies">
+    <Found Context="routeData">
+        <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
+    </Found>
+    <NotFound>
+        <LayoutView Layout="@typeof(MainLayout)">
+            <p>Sorry, there's nothing at this address.</p>
+        </LayoutView>
+    </NotFound>
+</Router>

framework/src/Volo.Abp.AspNetCore.Components.Web/Volo/Abp/AspNetCore/Components/Web/Security/AbpComponentsClaimsCache.cs

@@ -1,5 +1,6 @@
 using System.Security.Claims;
 using System.Threading.Tasks;
+using JetBrains.Annotations;
 using Microsoft.AspNetCore.Components.Authorization;
 using Microsoft.Extensions.DependencyInjection;
 using Volo.Abp.DependencyInjection;
@@ -14,21 +15,29 @@ namespace Volo.Abp.AspNetCore.Components.Web.Security
     {
         public ClaimsPrincipal Principal { get; private set; }
 
+        [CanBeNull]
         private readonly AuthenticationStateProvider _authenticationStateProvider;
 
-        public AbpComponentsClaimsCache(IClientScopeServiceProviderAccessor clientScopeServiceProviderAccessor)
+        public AbpComponentsClaimsCache(
+            IClientScopeServiceProviderAccessor serviceProviderAccessor)
         {
-            _authenticationStateProvider = clientScopeServiceProviderAccessor.ServiceProvider.GetRequiredService<AuthenticationStateProvider>();
-            _authenticationStateProvider.AuthenticationStateChanged += async (task) =>
+            _authenticationStateProvider = serviceProviderAccessor.ServiceProvider.GetService<AuthenticationStateProvider>();
+            if (_authenticationStateProvider != null)
             {
-                Principal = (await task).User;
-            };
+                _authenticationStateProvider.AuthenticationStateChanged += async (task) =>
+                {
+                    Principal = (await task).User;
+                };
+            }
         }
 
         public virtual async Task InitializeAsync()
         {
-            var authenticationState = await _authenticationStateProvider.GetAuthenticationStateAsync();
-            Principal = authenticationState.User;
+            if (_authenticationStateProvider != null)
+            {
+                var authenticationState = await _authenticationStateProvider.GetAuthenticationStateAsync();
+                Principal = authenticationState.User;
+            }
         }
     }
 }

framework/src/Volo.Abp.AspNetCore.Components.WebAssembly.BasicTheme/BasicThemeToolbarContributor.cs

@@ -1,7 +1,10 @@
 using System.Threading.Tasks;
+using Microsoft.AspNetCore.Components.Authorization;
+using Microsoft.Extensions.DependencyInjection;
 using Volo.Abp.AspNetCore.Components.Web.BasicTheme.Themes.Basic;
 using Volo.Abp.AspNetCore.Components.Web.Theming.Toolbars;
 using Volo.Abp.AspNetCore.Components.WebAssembly.BasicTheme.Themes.Basic;
+using Volo.Abp.DependencyInjection;
 
 namespace Volo.Abp.AspNetCore.Components.WebAssembly.BasicTheme
 {
@@ -12,7 +15,15 @@ namespace Volo.Abp.AspNetCore.Components.WebAssembly.BasicTheme
             if (context.Toolbar.Name == StandardToolbars.Main)
             {
                 context.Toolbar.Items.Add(new ToolbarItem(typeof(LanguageSwitch)));
-                context.Toolbar.Items.Add(new ToolbarItem(typeof(LoginDisplay)));
+         
+                //TODO: Can we find a different way to understand if authentication was configured or not?
+                var authenticationStateProvider = context.ServiceProvider
+                    .GetService<AuthenticationStateProvider>();
+                
+                if (authenticationStateProvider != null)
+                {
+                    context.Toolbar.Items.Add(new ToolbarItem(typeof(LoginDisplay)));
+                }
             }
 
             return Task.CompletedTask;

framework/src/Volo.Abp.AspNetCore.Components.WebAssembly.BasicTheme/Themes/Basic/LoginDisplay.razor

@@ -1,13 +1,12 @@
-@using Microsoft.AspNetCore.Components.WebAssembly.Authentication
-@using Microsoft.Extensions.Localization
+@using Microsoft.Extensions.Localization
 @using Volo.Abp.Users
 @using Volo.Abp.MultiTenancy
 @using global::Localization.Resources.AbpUi
+@inherits AbpComponentBase
 @inject ICurrentUser CurrentUser
 @inject ICurrentTenant CurrentTenant
 @inject IJSRuntime JsRuntime
 @inject NavigationManager Navigation
-@inject SignOutSessionStateManager SignOutManager
 @inject IStringLocalizer<AbpUiResource> UiLocalizer
 <AuthorizeView>
     <Authorized>
@@ -38,24 +37,4 @@
     <NotAuthorized>
         <a class="nav-link" href="authentication/login">@UiLocalizer["Login"]</a>
     </NotAuthorized>
-</AuthorizeView>
-@code{
-
-    private async Task NavigateToAsync(string uri, string target = null)
-    {
-        if (target == "_blank")
-        {
-            await JsRuntime.InvokeVoidAsync("open", uri, target);
-        }
-        else
-        {
-            Navigation.NavigateTo(uri);
-        }
-    }
-
-    private async Task BeginSignOut()
-    {
-        await SignOutManager.SetSignOutState();
-        await NavigateToAsync("authentication/logout");
-    }
-}
+</AuthorizeView>

framework/src/Volo.Abp.AspNetCore.Components.WebAssembly.BasicTheme/Themes/Basic/LoginDisplay.razor.cs

@@ -1,8 +1,11 @@
 using System;
 using System.Threading.Tasks;
+using JetBrains.Annotations;
 using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Components.Authorization;
 using Microsoft.AspNetCore.Components.Routing;
+using Microsoft.AspNetCore.Components.WebAssembly.Authentication;
+using Microsoft.JSInterop;
 using Volo.Abp.UI.Navigation;
 
 namespace Volo.Abp.AspNetCore.Components.WebAssembly.BasicTheme.Themes.Basic
@@ -11,23 +14,32 @@ namespace Volo.Abp.AspNetCore.Components.WebAssembly.BasicTheme.Themes.Basic
     {
         [Inject]
         protected IMenuManager MenuManager { get; set; }
-        
-        [Inject]
-        protected AuthenticationStateProvider AuthenticationStateProvider { get; set; }
 
-        protected ApplicationMenu Menu { get; set; }
+        [CanBeNull]
+        protected AuthenticationStateProvider AuthenticationStateProvider;
+
+        [CanBeNull]
+        protected SignOutSessionStateManager SignOutManager;
 
+        protected ApplicationMenu Menu { get; set; }
+        
         protected override async Task OnInitializedAsync()
         {
             Menu = await MenuManager.GetAsync(StandardMenus.User);
 
             Navigation.LocationChanged += OnLocationChanged;
 
-            AuthenticationStateProvider.AuthenticationStateChanged += async (task) =>
+            LazyGetService(ref AuthenticationStateProvider);
+            LazyGetService(ref SignOutManager);
+
+            if (AuthenticationStateProvider != null)
             {
-                Menu = await MenuManager.GetAsync(StandardMenus.User);
-                await InvokeAsync(StateHasChanged);
-            };
+                AuthenticationStateProvider.AuthenticationStateChanged += async (task) =>
+                {
+                    Menu = await MenuManager.GetAsync(StandardMenus.User);
+                    await InvokeAsync(StateHasChanged);
+                };
+            }
         }
 
         protected virtual void OnLocationChanged(object sender, LocationChangedEventArgs e)
@@ -39,5 +51,26 @@ namespace Volo.Abp.AspNetCore.Components.WebAssembly.BasicTheme.Themes.Basic
         {
             Navigation.LocationChanged -= OnLocationChanged;
         }
+        
+        private async Task NavigateToAsync(string uri, string target = null)
+        {
+            if (target == "_blank")
+            {
+                await JsRuntime.InvokeVoidAsync("open", uri, target);
+            }
+            else
+            {
+                Navigation.NavigateTo(uri);
+            }
+        }
+
+        private async Task BeginSignOut()
+        {
+            if (SignOutManager != null)
+            {
+                await SignOutManager.SetSignOutState();
+                await NavigateToAsync("authentication/logout");
+            }
+        }
     }
 }

framework/src/Volo.Abp.AspNetCore.Components/Volo/Abp/AspNetCore/Components/AbpComponentBase.cs

@@ -108,6 +108,18 @@ namespace Volo.Abp.AspNetCore.Components
 
             return reference;
         }
+        
+        protected TService LazyGetService<TService>(ref TService reference) => LazyGetService(typeof(TService), ref reference);
+
+        protected TRef LazyGetService<TRef>(Type serviceType, ref TRef reference)
+        {
+            if (reference == null)
+            {
+                reference = (TRef)ScopedServices.GetService(serviceType);
+            }
+
+            return reference;
+        }
 
         protected TService LazyGetNonScopedRequiredService<TService>(ref TService reference) => LazyGetNonScopedRequiredService(typeof(TService), ref reference);
 
@@ -120,6 +132,18 @@ namespace Volo.Abp.AspNetCore.Components
 
             return reference;
         }
+        
+        protected TService LazyGetNonScopedService<TService>(ref TService reference) => LazyGetNonScopedService(typeof(TService), ref reference);
+
+        protected TRef LazyGetNonScopedService<TRef>(Type serviceType, ref TRef reference)
+        {
+            if (reference == null)
+            {
+                reference = (TRef)NonScopedServices.GetService(serviceType);
+            }
+
+            return reference;
+        }
 
         [Inject]
         protected IServiceProvider NonScopedServices { get; set; }

framework/src/Volo.Abp.Http.Client.IdentityModel.WebAssembly/Volo/Abp/Http/Client/IdentityModel/WebAssembly/AccessTokenProviderIdentityModelRemoteServiceHttpClientAuthenticator.cs

@@ -1,6 +1,9 @@
-using System.Threading.Tasks;
+using System;
+using System.Threading.Tasks;
 using IdentityModel.Client;
+using JetBrains.Annotations;
 using Microsoft.AspNetCore.Components.WebAssembly.Authentication;
+using Microsoft.Extensions.DependencyInjection;
 using Volo.Abp.DependencyInjection;
 using Volo.Abp.Http.Client.Authentication;
 using Volo.Abp.IdentityModel;
@@ -8,16 +11,18 @@ using Volo.Abp.IdentityModel;
 namespace Volo.Abp.Http.Client.IdentityModel.WebAssembly
 {
     [Dependency(ReplaceServices = true)]
-    public class AccessTokenProviderIdentityModelRemoteServiceHttpClientAuthenticator : IdentityModelRemoteServiceHttpClientAuthenticator
+    public class AccessTokenProviderIdentityModelRemoteServiceHttpClientAuthenticator
+        : IdentityModelRemoteServiceHttpClientAuthenticator
     {
+        [CanBeNull]
         protected IAccessTokenProvider AccessTokenProvider { get; }
 
         public AccessTokenProviderIdentityModelRemoteServiceHttpClientAuthenticator(
             IIdentityModelAuthenticationService identityModelAuthenticationService,
-            IAccessTokenProvider accessTokenProvider)
+            IServiceProvider serviceProvider)
             : base(identityModelAuthenticationService)
         {
-            AccessTokenProvider = accessTokenProvider;
+            AccessTokenProvider = serviceProvider.GetService<IAccessTokenProvider>();
         }
 
         public override async Task Authenticate(RemoteServiceHttpClientAuthenticateContext context)
@@ -37,6 +42,11 @@ namespace Volo.Abp.Http.Client.IdentityModel.WebAssembly
 
         protected virtual async Task<string> GetAccessTokenFromAccessTokenProviderOrNullAsync()
         {
+            if (AccessTokenProvider == null)
+            {
+                return null;
+            }
+            
             var result = await AccessTokenProvider.RequestAccessToken();
             if (result.Status != AccessTokenResultStatus.Success)
             {