Update Blazor templates to use TempData

src/ProjectTemplates/Web.ProjectTemplates/content/BlazorWeb-CSharp/BlazorWebCSharp.1/Components/Account/IdentityRedirectManager.cs

@@ -1,20 +1,10 @@
 using Microsoft.AspNetCore.Components;
-using Microsoft.AspNetCore.Identity;
-using BlazorWebCSharp._1.Data;
 
 namespace BlazorWebCSharp._1.Components.Account;
 
 internal sealed class IdentityRedirectManager(NavigationManager navigationManager)
 {
-    public const string StatusCookieName = "Identity.StatusMessage";
-
-    private static readonly CookieBuilder StatusCookieBuilder = new()
-    {
-        SameSite = SameSiteMode.Strict,
-        HttpOnly = true,
-        IsEssential = true,
-        MaxAge = TimeSpan.FromSeconds(5),
-    };
+    public const string StatusMessageKey = "Identity.StatusMessage";
 
     public void RedirectTo(string? uri)
     {
@@ -36,19 +26,7 @@ public void RedirectTo(string uri, Dictionary<string, object?> queryParameters)
         RedirectTo(newUri);
     }
 
-    public void RedirectToWithStatus(string uri, string message, HttpContext context)
-    {
-        context.Response.Cookies.Append(StatusCookieName, message, StatusCookieBuilder.Build(context));
-        RedirectTo(uri);
-    }
-
     private string CurrentPath => navigationManager.ToAbsoluteUri(navigationManager.Uri).GetLeftPart(UriPartial.Path);
 
     public void RedirectToCurrentPage() => RedirectTo(CurrentPath);
-
-    public void RedirectToCurrentPageWithStatus(string message, HttpContext context)
-        => RedirectToWithStatus(CurrentPath, message, context);
-
-    public void RedirectToInvalidUser(UserManager<ApplicationUser> userManager, HttpContext context)
-        => RedirectToWithStatus("Account/InvalidUser", $"Error: Unable to load user with ID '{userManager.GetUserId(context.User)}'.", context);
 }

src/ProjectTemplates/Web.ProjectTemplates/content/BlazorWeb-CSharp/BlazorWebCSharp.1/Components/Account/Pages/ConfirmEmailChange.razor

@@ -21,6 +21,9 @@
     [CascadingParameter]
     private HttpContext HttpContext { get; set; } = default!;
 
+    [SupplyParameterFromTempData(Name = IdentityRedirectManager.StatusMessageKey)]
+    private string? IdentityStatusMessage { get; set; }
+
     [SupplyParameterFromQuery]
     private string? UserId { get; set; }
 
@@ -32,17 +35,20 @@
 
     protected override async Task OnInitializedAsync()
     {
+        message = IdentityStatusMessage;
+        IdentityStatusMessage = null;
+
         if (UserId is null || Email is null || Code is null)
         {
-            RedirectManager.RedirectToWithStatus(
-                "Account/Login", "Error: Invalid email change confirmation link.", HttpContext);
+            IdentityStatusMessage = "Error: Invalid email change confirmation link.";
+            RedirectManager.RedirectTo("Account/Login");
             return;
         }
 
         var user = await UserManager.FindByIdAsync(UserId);
         if (user is null)
         {
-            message = "Unable to find user with Id '{userId}'";
+            message = $"Error: Unable to find user with Id '{UserId}'";
             return;
         }
 

src/ProjectTemplates/Web.ProjectTemplates/content/BlazorWeb-CSharp/BlazorWebCSharp.1/Components/Account/Pages/ExternalLogin.razor

@@ -23,7 +23,7 @@
 <h2>Associate your @ProviderDisplayName account.</h2>
 <hr />
 
-<div  class="alert alert-info">
+<div class="alert alert-info">
     You've successfully authenticated with <strong>@ProviderDisplayName</strong>.
     Please enter an email address for this site below and click the Register button to finish
     logging in.
@@ -53,6 +53,9 @@
     [CascadingParameter]
     private HttpContext HttpContext { get; set; } = default!;
 
+    [SupplyParameterFromTempData(Name = IdentityRedirectManager.StatusMessageKey)]
+    private string? IdentityStatusMessage { get; set; }
+
     [SupplyParameterFromForm]
     private InputModel Input { get; set; } = default!;
 
@@ -69,18 +72,22 @@
 
     protected override async Task OnInitializedAsync()
     {
+        message = IdentityStatusMessage;
+        IdentityStatusMessage = null;
         Input ??= new();
 
         if (RemoteError is not null)
         {
-            RedirectManager.RedirectToWithStatus("Account/Login", $"Error from external provider: {RemoteError}", HttpContext);
+            IdentityStatusMessage = $"Error from external provider: {RemoteError}";
+            RedirectManager.RedirectTo("Account/Login");
             return;
         }
 
         var info = await SignInManager.GetExternalLoginInfoAsync();
         if (info is null)
         {
-            RedirectManager.RedirectToWithStatus("Account/Login", "Error loading external login information.", HttpContext);
+            IdentityStatusMessage = "Error loading external login information.";
+            RedirectManager.RedirectTo("Account/Login");
             return;
         }
 
@@ -104,7 +111,8 @@
     {
         if (externalLoginInfo is null)
         {
-            RedirectManager.RedirectToWithStatus("Account/Login", "Error loading external login information.", HttpContext);
+            IdentityStatusMessage = "Error loading external login information.";
+            RedirectManager.RedirectTo("Account/Login");
             return;
         }
 
@@ -141,7 +149,8 @@
     {
         if (externalLoginInfo is null)
         {
-            RedirectManager.RedirectToWithStatus("Account/Login", "Error loading external login information during confirmation.", HttpContext);
+            IdentityStatusMessage = "Error loading external login information during confirmation.";
+            RedirectManager.RedirectTo("Account/Login");
             return;
         }
 

src/ProjectTemplates/Web.ProjectTemplates/content/BlazorWeb-CSharp/BlazorWebCSharp.1/Components/Account/Pages/InvalidUser.razor

@@ -1,7 +1,23 @@
 @page "/Account/InvalidUser"
 
+@using Microsoft.AspNetCore.Identity
+@using BlazorWebCSharp._1.Data
+@inject UserManager<ApplicationUser> UserManager
+
 <PageTitle>Invalid user</PageTitle>
 
 <h3>Invalid user</h3>
 
-<StatusMessage />
+<StatusMessage Message="@message" />
+
+@code {
+    private string? message;
+
+    [CascadingParameter]
+    private HttpContext HttpContext { get; set; } = default!;
+
+    protected override void OnInitialized()
+    {
+        message = $"Error: Unable to load user with ID '{UserManager.GetUserId(HttpContext.User)}'.";
+    }
+}

src/ProjectTemplates/Web.ProjectTemplates/content/BlazorWeb-CSharp/BlazorWebCSharp.1/Components/Account/Pages/Login.razor

@@ -82,6 +82,9 @@
     [CascadingParameter]
     private HttpContext HttpContext { get; set; } = default!;
 
+    [SupplyParameterFromTempData(Name = IdentityRedirectManager.StatusMessageKey)]
+    private string? IdentityStatusMessage { get; set; }
+
     [SupplyParameterFromForm]
     private InputModel Input { get; set; } = default!;
 
@@ -90,6 +93,8 @@
 
     protected override async Task OnInitializedAsync()
     {
+        errorMessage = IdentityStatusMessage;
+        IdentityStatusMessage = null;
         Input ??= new();
 
         editContext = new EditContext(Input);

src/ProjectTemplates/Web.ProjectTemplates/content/BlazorWeb-CSharp/BlazorWebCSharp.1/Components/Account/Pages/Manage/ChangePassword.razor

@@ -52,17 +52,22 @@
     [CascadingParameter]
     private HttpContext HttpContext { get; set; } = default!;
 
+    [SupplyParameterFromTempData(Name = IdentityRedirectManager.StatusMessageKey)]
+    private string? IdentityStatusMessage { get; set; }
+
     [SupplyParameterFromForm]
     private InputModel Input { get; set; } = default!;
 
     protected override async Task OnInitializedAsync()
     {
+        message = IdentityStatusMessage;
+        IdentityStatusMessage = null;
         Input ??= new();
 
         user = await UserManager.GetUserAsync(HttpContext.User);
         if (user is null)
         {
-            RedirectManager.RedirectToInvalidUser(UserManager, HttpContext);
+            RedirectManager.RedirectTo("Account/InvalidUser");
             return;
         }
 
@@ -77,7 +82,7 @@
     {
         if (user is null)
         {
-            RedirectManager.RedirectToInvalidUser(UserManager, HttpContext);
+            RedirectManager.RedirectTo("Account/InvalidUser");
             return;
         }
 
@@ -91,7 +96,8 @@
         await SignInManager.RefreshSignInAsync(user);
         Logger.LogInformation("User changed their password successfully.");
 
-        RedirectManager.RedirectToCurrentPageWithStatus("Your password has been changed", HttpContext);
+        IdentityStatusMessage = "Your password has been changed";
+        RedirectManager.RedirectToCurrentPage();
     }
 
     private sealed class InputModel

src/ProjectTemplates/Web.ProjectTemplates/content/BlazorWeb-CSharp/BlazorWebCSharp.1/Components/Account/Pages/Manage/DeletePersonalData.razor

@@ -45,17 +45,22 @@
     [CascadingParameter]
     private HttpContext HttpContext { get; set; } = default!;
 
+    [SupplyParameterFromTempData(Name = IdentityRedirectManager.StatusMessageKey)]
+    private string? IdentityStatusMessage { get; set; }
+
     [SupplyParameterFromForm]
     private InputModel Input { get; set; } = default!;
 
     protected override async Task OnInitializedAsync()
     {
+        message = IdentityStatusMessage;
+        IdentityStatusMessage = null;
         Input ??= new();
 
         user = await UserManager.GetUserAsync(HttpContext.User);
         if (user is null)
         {
-            RedirectManager.RedirectToInvalidUser(UserManager, HttpContext);
+            RedirectManager.RedirectTo("Account/InvalidUser");
             return;
         }
         requirePassword = await UserManager.HasPasswordAsync(user);
@@ -65,7 +70,7 @@
     {
         if (user is null)
         {
-            RedirectManager.RedirectToInvalidUser(UserManager, HttpContext);
+            RedirectManager.RedirectTo("Account/InvalidUser");
             return;
         }
 

src/ProjectTemplates/Web.ProjectTemplates/content/BlazorWeb-CSharp/BlazorWebCSharp.1/Components/Account/Pages/Manage/Disable2fa.razor

@@ -9,7 +9,7 @@
 
 <PageTitle>Disable two-factor authentication (2FA)</PageTitle>
 
-<StatusMessage />
+<StatusMessage Message="@message" />
 <h3>Disable two-factor authentication (2FA)</h3>
 
 <div class="alert alert-warning" role="alert">
@@ -30,17 +30,24 @@
 </div>
 
 @code {
+    private string? message;
     private ApplicationUser? user;
 
     [CascadingParameter]
     private HttpContext HttpContext { get; set; } = default!;
 
+    [SupplyParameterFromTempData(Name = IdentityRedirectManager.StatusMessageKey)]
+    private string? IdentityStatusMessage { get; set; }
+
     protected override async Task OnInitializedAsync()
     {
+        message = IdentityStatusMessage;
+        IdentityStatusMessage = null;
+
         user = await UserManager.GetUserAsync(HttpContext.User);
         if (user is null)
         {
-            RedirectManager.RedirectToInvalidUser(UserManager, HttpContext);
+            RedirectManager.RedirectTo("Account/InvalidUser");
             return;
         }
 
@@ -54,7 +61,7 @@
     {
         if (user is null)
         {
-            RedirectManager.RedirectToInvalidUser(UserManager, HttpContext);
+            RedirectManager.RedirectTo("Account/InvalidUser");
             return;
         }
 
@@ -66,9 +73,7 @@
 
         var userId = await UserManager.GetUserIdAsync(user);
         Logger.LogInformation("User with ID '{UserId}' has disabled 2fa.", userId);
-        RedirectManager.RedirectToWithStatus(
-            "Account/Manage/TwoFactorAuthentication",
-            "2fa has been disabled. You can reenable 2fa when you setup an authenticator app",
-            HttpContext);
+        IdentityStatusMessage = "2fa has been disabled. You can reenable 2fa when you setup an authenticator app";
+        RedirectManager.RedirectTo("Account/Manage/TwoFactorAuthentication");
     }
 }

src/ProjectTemplates/Web.ProjectTemplates/content/BlazorWeb-CSharp/BlazorWebCSharp.1/Components/Account/Pages/Manage/Email.razor

@@ -64,17 +64,22 @@
     [CascadingParameter]
     private HttpContext HttpContext { get; set; } = default!;
 
+    [SupplyParameterFromTempData(Name = IdentityRedirectManager.StatusMessageKey)]
+    private string? IdentityStatusMessage { get; set; }
+
     [SupplyParameterFromForm(FormName = "change-email")]
     private InputModel Input { get; set; } = default!;
 
     protected override async Task OnInitializedAsync()
     {
+        message = IdentityStatusMessage;
+        IdentityStatusMessage = null;
         Input ??= new();
 
         user = await UserManager.GetUserAsync(HttpContext.User);
         if (user is null)
         {
-            RedirectManager.RedirectToInvalidUser(UserManager, HttpContext);
+            RedirectManager.RedirectTo("Account/InvalidUser");
             return;
         }
 
@@ -94,7 +99,7 @@
 
         if (user is null)
         {
-            RedirectManager.RedirectToInvalidUser(UserManager, HttpContext);
+            RedirectManager.RedirectTo("Account/InvalidUser");
             return;
         }
 
@@ -119,7 +124,7 @@
 
         if (user is null)
         {
-            RedirectManager.RedirectToInvalidUser(UserManager, HttpContext);
+            RedirectManager.RedirectTo("Account/InvalidUser");
             return;
         }