--- phase: 19-app-registration-removal verified: 2026-04-09T00:00:00Z status: passed score: 15/15 must-haves verified re_verification: false --- # Phase 19: App Registration and Removal — Verification Report **Phase Goal:** Automated Entra ID app registration with admin detection, rollback on failure, manual fallback instructions, and MSAL session cleanup. **Verified:** 2026-04-09 **Status:** PASSED **Re-verification:** No — initial verification --- ## Goal Achievement ### Observable Truths #### Plan 01 Truths | # | Truth | Status | Evidence | |---|-------|--------|----------| | 1 | IsGlobalAdminAsync returns true when user has Global Admin directory role | VERIFIED | AppRegistrationService.cs:43–51 — transitiveMemberOf filter + DirectoryRole cast + templateId comparison | | 2 | IsGlobalAdminAsync returns false (not throws) when user lacks role or gets 403 | VERIFIED | AppRegistrationService.cs:53–57 — catch(Exception) returns false with LogWarning | | 3 | RegisterAsync creates Application + ServicePrincipal + OAuth2PermissionGrants in sequence | VERIFIED | AppRegistrationService.cs:61–133 — 4-step sequential flow, all 6 Graph calls present | | 4 | RegisterAsync rolls back (deletes Application) when any intermediate step fails | VERIFIED | AppRegistrationService.cs:136–153 — catch block DELETEs createdApp.Id when non-null, logs rollback failure | | 5 | RemoveAsync deletes the Application by appId and clears MSAL session | VERIFIED | AppRegistrationService.cs:157–169 — DeleteAsync with appId filter, logs warning on failure without throw | | 6 | TenantProfile.AppId is nullable and round-trips through JSON serialization | VERIFIED | TenantProfile.cs:15 — `public string? AppId { get; set; }`; tests AppId_RoundTrips_ViaJson + AppId_Null_RoundTrips_ViaJson pass | | 7 | AppRegistrationResult discriminates Success (with appId), Failure (with message), and Fallback | VERIFIED | AppRegistrationResult.cs:23–32 — 3 static factories with private constructor; tests Success_CarriesAppId, Failure_CarriesMessage, FallbackRequired_SetsFallback all pass | #### Plan 02 Truths | # | Truth | Status | Evidence | |---|-------|--------|----------| | 8 | Register App button visible in profile dialog when a profile is selected and has no AppId | VERIFIED | ProfileManagementDialog.xaml:98–99 — Button bound to RegisterAppCommand; CanRegisterApp() = profile != null && AppId == null && !IsRegistering | | 9 | Remove App button visible when selected profile has a non-null AppId | VERIFIED | ProfileManagementDialog.xaml:100–101 — Button bound to RemoveAppCommand; CanRemoveApp() = profile != null && AppId != null | | 10 | Clicking Register checks Global Admin first; if not admin, shows fallback instructions panel | VERIFIED | ProfileManagementViewModel.cs:302–308 — IsGlobalAdminAsync called, ShowFallbackInstructions = true when false; test RegisterApp_ShowsFallback_WhenNotAdmin passes | | 11 | Clicking Register when admin runs full registration and stores AppId on profile | VERIFIED | ProfileManagementViewModel.cs:310–319 — RegisterAsync called, SelectedProfile.AppId = result.AppId, UpdateProfileAsync persists; test RegisterApp_SetsAppId_OnSuccess passes | | 12 | Clicking Remove deletes the app registration and clears AppId + MSAL session | VERIFIED | ProfileManagementViewModel.cs:336–350 — RemoveAsync + ClearMsalSessionAsync + AppId = null + UpdateProfileAsync; test RemoveApp_ClearsAppId passes | | 13 | Fallback panel shows step-by-step manual registration instructions | VERIFIED | ProfileManagementDialog.xaml:111–125 — Border with 6 TextBlock steps, bound to ShowFallbackInstructions via BooleanToVisibilityConverter | | 14 | Status feedback shown during registration/removal (busy indicator + result message) | VERIFIED | ProfileManagementViewModel.cs:297–341 — RegistrationStatus strings set throughout RegisterAppAsync/RemoveAppAsync, IsRegistering=true during operations; TextBlock at xaml:105 | | 15 | All strings localized in EN and FR | VERIFIED | Strings.resx:416–431 — 11 EN keys; Strings.fr.resx:416–431 — 11 FR keys with proper accents | **Score:** 15/15 truths verified --- ### Required Artifacts | Artifact | Purpose | Status | Details | |----------|---------|--------|---------| | `SharepointToolbox/Core/Models/AppRegistrationResult.cs` | Discriminated result type | VERIFIED | 33 lines, private constructor + 3 factory methods, all 4 properties | | `SharepointToolbox/Core/Models/TenantProfile.cs` | AppId nullable property | VERIFIED | `public string? AppId { get; set; }` present, existing properties unchanged | | `SharepointToolbox/Services/IAppRegistrationService.cs` | Service interface | VERIFIED | 4 method signatures: IsGlobalAdminAsync, RegisterAsync, RemoveAsync, ClearMsalSessionAsync | | `SharepointToolbox/Services/AppRegistrationService.cs` | Service implementation | VERIFIED | 229 lines, implements all 4 methods with rollback logic, BuildRequiredResourceAccess internal helper | | `SharepointToolbox.Tests/Services/AppRegistrationServiceTests.cs` | Service + model unit tests | VERIFIED | 178 lines, 12 tests — factory methods, JSON round-trip, interface check, RequiredResourceAccess structure | | `SharepointToolbox/ViewModels/ProfileManagementViewModel.cs` | ViewModel with register/remove commands | VERIFIED | RegisterAppCommand, RemoveAppCommand, 3 observable properties, CanRegisterApp/CanRemoveApp guards, full RegisterAppAsync/RemoveAppAsync implementations | | `SharepointToolbox/Views/Dialogs/ProfileManagementDialog.xaml` | Registration UI in dialog | VERIFIED | Height=750, 6 RowDefinitions, Row 4 has Register/Remove buttons + status text + fallback panel, Row 5 has original buttons | | `SharepointToolbox/Localization/Strings.resx` | EN localization | VERIFIED | 11 keys from profile.register to profile.fallback.step6 | | `SharepointToolbox/Localization/Strings.fr.resx` | FR localization | VERIFIED | 11 keys with proper accented characters | | `SharepointToolbox.Tests/ViewModels/ProfileManagementViewModelRegistrationTests.cs` | ViewModel unit tests | VERIFIED | 157 lines, 7 tests — CanExecute guards, fallback, AppId set on success, AppId cleared on remove | --- ### Key Link Verification | From | To | Via | Status | Details | |------|----|-----|--------|---------| | `AppRegistrationService.cs` | `GraphClientFactory` | constructor injection (alias AppGraphClientFactory) | WIRED | Line 5: `using AppGraphClientFactory = ...GraphClientFactory;`, field `_graphFactory`, used in all 4 methods | | `AppRegistrationService.cs` | `MsalClientFactory` | constructor injection (alias AppMsalClientFactory) | WIRED | Line 6: `using AppMsalClientFactory = ...MsalClientFactory;`, field `_msalFactory`, used in ClearMsalSessionAsync | | `ProfileManagementViewModel.cs` | `IAppRegistrationService` | constructor injection | WIRED | Line 20: field `_appRegistrationService`, injected at line 71, called in RegisterAppAsync and RemoveAppAsync | | `ProfileManagementDialog.xaml` | `ProfileManagementViewModel` | data binding | WIRED | RegisterAppCommand bound at line 99, RemoveAppCommand at line 101, ShowFallbackInstructions at lines 94+111, RegistrationStatus at line 105 | | `App.xaml.cs` | `AppRegistrationService` | DI singleton registration | WIRED | Line 168: `services.AddSingleton()` | --- ### Requirements Coverage | Requirement | Source Plan | Description | Status | Evidence | |-------------|-------------|-------------|--------|---------| | APPREG-01 | 19-02 | User can register the app from profile dialog | SATISFIED | RegisterAppCommand in ViewModel + Register button in XAML, AppId stored on success | | APPREG-02 | 19-01 | Auto-detect Global Admin before registration | SATISFIED | IsGlobalAdminAsync via transitiveMemberOf called as first step in RegisterAppAsync | | APPREG-03 | 19-01 | Atomic registration with rollback on failure | SATISFIED | Sequential 4-step flow in RegisterAsync, rollback DELETE on any exception | | APPREG-04 | 19-02 | Guided fallback instructions when auto-registration impossible | SATISFIED | ShowFallbackInstructions=true + fallback panel with 6-step instructions | | APPREG-05 | 19-02 | User can remove app registration | SATISFIED | RemoveAppCommand, RemoveAsync deletes by appId | | APPREG-06 | 19-01 | Clear cached tokens/sessions on removal | SATISFIED | ClearMsalSessionAsync: SessionManager.ClearSessionAsync + MSAL account eviction + cache unregister, called in RemoveAppAsync | All 6 requirements satisfied. No orphaned requirements. --- ### Test Results 19/19 tests pass (12 service/model + 7 ViewModel). ``` Passed AppRegistrationServiceTests.Success_CarriesAppId Passed AppRegistrationServiceTests.Failure_CarriesMessage Passed AppRegistrationServiceTests.FallbackRequired_SetsFallback Passed AppRegistrationServiceTests.AppId_DefaultsToNull Passed AppRegistrationServiceTests.AppId_RoundTrips_ViaJson Passed AppRegistrationServiceTests.AppId_Null_RoundTrips_ViaJson Passed AppRegistrationServiceTests.AppRegistrationService_ImplementsInterface Passed AppRegistrationServiceTests.BuildRequiredResourceAccess_ContainsTwoResources Passed AppRegistrationServiceTests.BuildRequiredResourceAccess_GraphResource_HasFourScopes Passed AppRegistrationServiceTests.BuildRequiredResourceAccess_SharePointResource_HasOneScope Passed AppRegistrationServiceTests.BuildRequiredResourceAccess_AllScopes_HaveScopeType Passed AppRegistrationServiceTests.BuildRequiredResourceAccess_GraphResource_ContainsUserReadScope Passed ProfileManagementViewModelRegistrationTests.RegisterAppCommand_CanExecute_WhenProfileSelected_AndNoAppId Passed ProfileManagementViewModelRegistrationTests.RegisterAppCommand_CannotExecute_WhenNoProfile Passed ProfileManagementViewModelRegistrationTests.RemoveAppCommand_CanExecute_WhenProfileHasAppId Passed ProfileManagementViewModelRegistrationTests.RemoveAppCommand_CannotExecute_WhenNoAppId Passed ProfileManagementViewModelRegistrationTests.RegisterApp_ShowsFallback_WhenNotAdmin Passed ProfileManagementViewModelRegistrationTests.RegisterApp_SetsAppId_OnSuccess Passed ProfileManagementViewModelRegistrationTests.RemoveApp_ClearsAppId ``` --- ### Anti-Patterns Found | File | Line | Pattern | Severity | Impact | |------|------|---------|----------|--------| | `AppRegistrationService.cs` | 223 | LOW confidence GUID comment for SharePoint AllSites.FullControl (`56680e0d-...`) | INFO | Code comment documents this; GUID must be verified against a live tenant before production use. Does not block current phase goal. | No TODO/FIXME/placeholder comments. No stub return values. No orphaned implementations. --- ### Human Verification Required #### 1. Live Entra ID Registration Flow **Test:** On a tenant where the signed-in user is a Global Admin, open a profile with no AppId, click "Register App". **Expected:** Application and ServicePrincipal are created in Entra ID, permissions granted, AppId stored on profile. **Why human:** Requires live Entra ID tenant; Graph API calls cannot be verified programmatically without connectivity. #### 2. SharePoint AllSites.FullControl GUID **Test:** On a live tenant, query `GET /servicePrincipals?$filter=appId eq '00000003-0000-0ff1-ce00-000000000000'&$select=oauth2PermissionScopes` and verify the GUID `56680e0d-d2a3-4ae1-80d8-3c4a5c70c4a6` matches AllSites.FullControl. **Expected:** GUID matches the delegated permission scope in the tenant's SharePoint SP. **Why human:** GUID is tenant-side stable but marked LOW confidence in the codebase. Structural tests pass; semantic correctness requires live verification. #### 3. Fallback Panel Visibility Toggle **Test:** Open profile dialog with a profile that has no AppId, click "Register App" while signed in as a non-admin user (or mock non-admin). **Expected:** Fallback instructions panel becomes visible below the buttons. **Why human:** WPF BooleanToVisibilityConverter binding behavior requires visual runtime verification. #### 4. MSAL Session Eviction **Test:** After removing an app registration, verify that attempting to re-authenticate with the same clientId prompts for credentials rather than using a cached token. **Expected:** Token cache is fully cleared; user must re-authenticate. **Why human:** MSAL cache state after eviction cannot be verified without a live auth session. --- ### Commits | Commit | Description | |--------|-------------| | `93dbb8c` | feat(19-01): AppRegistrationService, models, interface | | `8083cdf` | test(19-01): unit tests for service and models | | `42b5eda` | feat(19-02): RegisterApp/RemoveApp commands, DI, localization | | `809ac86` | feat(19-02): dialog XAML, ViewModel tests | All 4 commits verified in git history. --- _Verified: 2026-04-09_ _Verifier: Claude (gsd-verifier)_