update nach Schuelererfassung

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

@@ -0,0 +1,56 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+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 DownloadPersonalDataModel : PageModel
+    {
+        private readonly UserManager<IdentityUser> _userManager;
+        private readonly ILogger<DownloadPersonalDataModel> _logger;
+
+        public DownloadPersonalDataModel(
+            UserManager<IdentityUser> userManager,
+            ILogger<DownloadPersonalDataModel> logger)
+        {
+            _userManager = userManager;
+            _logger = logger;
+        }
+
+        public async Task<IActionResult> OnPostAsync()
+        {
+            var user = await _userManager.GetUserAsync(User);
+            if (user == null)
+            {
+                return NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'.");
+            }
+
+            _logger.LogInformation("User with ID '{UserId}' asked for their personal data.", _userManager.GetUserId(User));
+
+            // Only include personal data for download
+            var personalData = new Dictionary<string, string>();
+            var personalDataProps = typeof(IdentityUser).GetProperties().Where(
+                            prop => Attribute.IsDefined(prop, typeof(PersonalDataAttribute)));
+            foreach (var p in personalDataProps)
+            {
+                personalData.Add(p.Name, p.GetValue(user)?.ToString() ?? "null");
+            }
+
+            var logins = await _userManager.GetLoginsAsync(user);
+            foreach (var l in logins)
+            {
+                personalData.Add($"{l.LoginProvider} external login provider key", l.ProviderKey);
+            }
+
+            Response.Headers.Add("Content-Disposition", "attachment; filename=PersonalData.json");
+            return new FileContentResult(JsonSerializer.SerializeToUtf8Bytes(personalData), "application/json");
+        }
+    }
+}