changement du template pour inclure l'authentification

src/LudikZoneBlazor/Components/Account/IdentityRevalidatingAuthenticationStateProvider.cs

@@ -0,0 +1,47 @@
+using System.Security.Claims;
+using Microsoft.AspNetCore.Components.Authorization;
+using Microsoft.AspNetCore.Components.Server;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.Extensions.Options;
+using LudikZoneBlazor.Data;
+
+namespace LudikZoneBlazor.Components.Account;
+
+// This is a server-side AuthenticationStateProvider that revalidates the security stamp for the connected user
+// every 30 minutes an interactive circuit is connected.
+internal sealed class IdentityRevalidatingAuthenticationStateProvider(
+        ILoggerFactory loggerFactory,
+        IServiceScopeFactory scopeFactory,
+        IOptions<IdentityOptions> options)
+    : RevalidatingServerAuthenticationStateProvider(loggerFactory)
+{
+    protected override TimeSpan RevalidationInterval => TimeSpan.FromMinutes(30);
+
+    protected override async Task<bool> ValidateAuthenticationStateAsync(
+        AuthenticationState authenticationState, CancellationToken cancellationToken)
+    {
+        // Get the user manager from a new scope to ensure it fetches fresh data
+        await using var scope = scopeFactory.CreateAsyncScope();
+        var userManager = scope.ServiceProvider.GetRequiredService<UserManager<ApplicationUser>>();
+        return await ValidateSecurityStampAsync(userManager, authenticationState.User);
+    }
+
+    private async Task<bool> ValidateSecurityStampAsync(UserManager<ApplicationUser> userManager, ClaimsPrincipal principal)
+    {
+        var user = await userManager.GetUserAsync(principal);
+        if (user is null)
+        {
+            return false;
+        }
+        else if (!userManager.SupportsUserSecurityStamp)
+        {
+            return true;
+        }
+        else
+        {
+            var principalStamp = principal.FindFirstValue(options.Value.ClaimsIdentity.SecurityStampClaimType);
+            var userStamp = await userManager.GetSecurityStampAsync(user);
+            return principalStamp == userStamp;
+        }
+    }
+}