| | | 1 | | using System.Security.Claims; |
| | | 2 | | using Microsoft.AspNetCore.Authentication; |
| | | 3 | | using Microsoft.Extensions.Logging; |
| | | 4 | | using Services.Authorization.Dtos; |
| | | 5 | | using Services.Authorization.Services; |
| | | 6 | | using Claim = System.Security.Claims.Claim; |
| | | 7 | | |
| | | 8 | | namespace OzonOrdersWeb.Authorization; |
| | | 9 | | |
| | | 10 | | /// <summary> |
| | | 11 | | /// ClaimsTransformation: при каждом запросе обогащает ClaimsPrincipal именами прикладных ролей (AppRoleNames) |
| | | 12 | | /// и отметкой SuperAdmin. Это позволяет использовать стандартные [Authorize(Roles=...)] для быстрых проверок |
| | | 13 | | /// и видеть роли в claims сессии. |
| | | 14 | | /// </summary> |
| | | 15 | | public sealed class PermissionClaimsTransformation : IClaimsTransformation |
| | | 16 | | { |
| | | 17 | | public const string AppRoleClaimType = "app_role"; |
| | | 18 | | public const string SuperAdminClaimType = "app_is_super_admin"; |
| | | 19 | | |
| | | 20 | | private readonly IPermissionService _permissions; |
| | | 21 | | private readonly ILogger<PermissionClaimsTransformation> _logger; |
| | | 22 | | |
| | 0 | 23 | | public PermissionClaimsTransformation( |
| | 0 | 24 | | IPermissionService permissions, |
| | 0 | 25 | | ILogger<PermissionClaimsTransformation> logger) |
| | | 26 | | { |
| | 0 | 27 | | _permissions = permissions; |
| | 0 | 28 | | _logger = logger; |
| | 0 | 29 | | } |
| | | 30 | | |
| | | 31 | | public async Task<ClaimsPrincipal> TransformAsync(ClaimsPrincipal principal) |
| | | 32 | | { |
| | 0 | 33 | | if (principal.Identity?.IsAuthenticated != true) return principal; |
| | | 34 | | |
| | 0 | 35 | | var userId = principal.FindFirst(ClaimTypes.NameIdentifier)?.Value; |
| | 0 | 36 | | if (string.IsNullOrWhiteSpace(userId)) return principal; |
| | | 37 | | |
| | | 38 | | UserPermissionsBundle bundle; |
| | | 39 | | try |
| | | 40 | | { |
| | 0 | 41 | | bundle = await _permissions.GetUserPermissionsAsync(userId); |
| | 0 | 42 | | } |
| | 0 | 43 | | catch (Exception ex) |
| | | 44 | | { |
| | 0 | 45 | | _logger.LogWarning( |
| | 0 | 46 | | ex, |
| | 0 | 47 | | "Не удалось загрузить права для claims (userId={UserId}), запрос продолжится с Identity-ролями", |
| | 0 | 48 | | userId); |
| | 0 | 49 | | return EnsureLegacyUserRole(principal); |
| | | 50 | | } |
| | | 51 | | |
| | 0 | 52 | | var identity = new ClaimsIdentity(); |
| | 0 | 53 | | foreach (var roleName in bundle.RoleNames) |
| | | 54 | | { |
| | 0 | 55 | | identity.AddClaim(new Claim(AppRoleClaimType, roleName)); |
| | 0 | 56 | | identity.AddClaim(new Claim(ClaimTypes.Role, roleName)); |
| | | 57 | | } |
| | 0 | 58 | | if (bundle.IsSuperAdmin) |
| | | 59 | | { |
| | 0 | 60 | | identity.AddClaim(new Claim(SuperAdminClaimType, "true")); |
| | | 61 | | // Обратная совместимость с существующими [Authorize(Roles="Admin")] |
| | 0 | 62 | | if (!principal.IsInRole("Admin")) |
| | 0 | 63 | | identity.AddClaim(new Claim(ClaimTypes.Role, "Admin")); |
| | | 64 | | } |
| | 0 | 65 | | else if (bundle.RoleNames.Count > 0 && !principal.IsInRole("User")) |
| | | 66 | | { |
| | | 67 | | // Обратная совместимость: legacy-контроллеры защищены [Authorize(Roles="User,Admin")]. |
| | | 68 | | // Любой пользователь с прикладной ролью должен проходить проверку "User". |
| | 0 | 69 | | identity.AddClaim(new Claim(ClaimTypes.Role, "User")); |
| | | 70 | | } |
| | | 71 | | |
| | 0 | 72 | | principal.AddIdentity(identity); |
| | 0 | 73 | | return principal; |
| | 0 | 74 | | } |
| | | 75 | | |
| | | 76 | | private static ClaimsPrincipal EnsureLegacyUserRole(ClaimsPrincipal principal) |
| | | 77 | | { |
| | 0 | 78 | | if (principal.IsInRole("User") || principal.IsInRole("Admin")) |
| | | 79 | | { |
| | 0 | 80 | | return principal; |
| | | 81 | | } |
| | | 82 | | |
| | 0 | 83 | | var identity = new ClaimsIdentity(); |
| | 0 | 84 | | identity.AddClaim(new Claim(ClaimTypes.Role, "User")); |
| | 0 | 85 | | principal.AddIdentity(identity); |
| | 0 | 86 | | return principal; |
| | | 87 | | } |
| | | 88 | | } |