update nach Schuelererfassung

BlazorApp - Kopie (4)/Areas/Identity/Pages/Account/Manage/GenerateRecoveryCodes.cshtml.cs

@@ -0,0 +1,72 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using Microsoft.Extensions.Logging;
+
+namespace BlazorApp.Areas.Identity.Pages.Account.Manage
+{
+    public class GenerateRecoveryCodesModel : PageModel
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly ILogger<GenerateRecoveryCodesModel> _logger;
+
+        public GenerateRecoveryCodesModel(
+            UserManager<IdentityUser> userManager,
+            ILogger<GenerateRecoveryCodesModel> logger)
+        {
+            _userManager = userManager;
+            _logger = logger;
+        }
+
+        [TempData]
+        public string[] RecoveryCodes { get; set; }
+
+        [TempData]
+        public string StatusMessage { get; set; }
+
+        public async Task<IActionResult> OnGetAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            var isTwoFactorEnabled = await _userManager.GetTwoFactorEnabledAsync(user);
+            if (!isTwoFactorEnabled)
+            {
+                var userId = await _userManager.GetUserIdAsync(user);
+                throw new InvalidOperationException($"Cannot generate recovery codes for user with ID '{userId}' because they do not have 2FA enabled.");
+            }
+
+            return Page();
+        }
+
+        public async Task<IActionResult> OnPostAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            var isTwoFactorEnabled = await _userManager.GetTwoFactorEnabledAsync(user);
+            var userId = await _userManager.GetUserIdAsync(user);
+            if (!isTwoFactorEnabled)
+            {
+                throw new InvalidOperationException($"Cannot generate recovery codes for user with ID '{userId}' as they do not have 2FA enabled.");
+            }
+
+            var recoveryCodes = await _userManager.GenerateNewTwoFactorRecoveryCodesAsync(user, 10);
+            RecoveryCodes = recoveryCodes.ToArray();
+
+            _logger.LogInformation("User with ID '{UserId}' has generated new 2FA recovery codes.", userId);
+            StatusMessage = "You have generated new recovery codes.";
+            return RedirectToPage("./ShowRecoveryCodes");
+        }
+    }
+}