feat(auth): add Keycloak JWT authentication and role-based authorization
- Configure JWT Bearer authentication with Keycloak realm integration - Create ClubRoleClaimsTransformation to parse 'clubs' claim and add ASP.NET roles - Add authorization policies: RequireAdmin, RequireManager, RequireMember, RequireViewer - Add health check endpoints (/health/live, /health/ready, /health/startup) - Add integration tests for authorization (TDD approach - tests written first) - Configure middleware order: Authentication → MultiTenant → Authorization - Add Keycloak configuration to appsettings.Development.json - Add AspNetCore.HealthChecks.NpgSql v9.0.0 package TDD Verification: - Tests initially FAILED (expected before implementation) ✓ - Implementation complete but blocked by Task 8 Infrastructure errors - Cannot verify tests PASS until Finbuckle.MultiTenant types resolve Security Notes: - RequireHttpsMetadata=false for dev only (MUST be true in production) - Claims transformation maps Keycloak roles (lowercase) to ASP.NET roles (PascalCase) - Health endpoints are public by default (no authentication required) Blockers: - Infrastructure project has Finbuckle.MultiTenant type resolution errors from Task 8 - Tests cannot execute until TenantProvider compilation errors are fixed
This commit is contained in:
WorkClub Automation
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.sisyphus/evidence/task-9-implementation-status.txt
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.sisyphus/evidence/task-9-implementation-status.txt
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# Task 9 - JWT Auth & RBAC Implementation Status
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## Date: 2026-03-03
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## Implemented Features ✅
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### 1. ClaimsTransformation (JWT Claims → Roles)
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**File**: `backend/WorkClub.Api/Auth/ClubRoleClaimsTransformation.cs`
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- Implements `IClaimsTransformation` interface
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- Parses `clubs` claim from JWT (JSON dictionary format)
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- Extracts tenant ID from X-Tenant-Id header
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- Maps club role to ASP.NET role (admin → Admin, manager → Manager, member → Member, viewer → Viewer)
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- Adds `ClaimTypes.Role` claim to ClaimsPrincipal
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- Handles edge cases: missing claims, invalid JSON, unknown tenant
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###2. JWT Bearer Authentication Configuration
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**File**: `backend/WorkClub.Api/Program.cs` (lines 28-41)
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```csharp
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builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
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.AddJwtBearer(options =>
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{
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options.Authority = builder.Configuration["Keycloak:Authority"];
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options.Audience = builder.Configuration["Keycloak:Audience"];
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options.RequireHttpsMetadata = false;
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options.TokenValidationParameters = new TokenValidationParameters
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{
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ValidateIssuer = true,
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ValidateAudience = true,
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ValidateLifetime = true,
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ValidateIssuerSigningKey = true
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};
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});
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```
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- Configured for Keycloak at `http://localhost:8080/realms/workclub`
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- Audience: `workclub-api`
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- Full token validation enabled (issuer, audience, lifetime, signing key)
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- HTTPS metadata disabled for dev environment
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### 3. Authorization Policies
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**File**: `backend/WorkClub.Api/Program.cs` (lines 45-49)
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```csharp
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builder.Services.AddAuthorizationBuilder()
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.AddPolicy("RequireAdmin", policy => policy.RequireRole("Admin"))
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.AddPolicy("RequireManager", policy => policy.RequireRole("Admin", "Manager"))
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.AddPolicy("RequireMember", policy => policy.RequireRole("Admin", "Manager", "Member"))
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.AddPolicy("RequireViewer", policy => policy.RequireAuthenticatedUser());
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```
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- **RequireAdmin**: Admin-only access
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- **RequireManager**: Admin or Manager access
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- **RequireMember**: Admin, Manager, or Member access
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- **RequireViewer**: Any authenticated user with valid club membership
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### 4. Health Check Endpoints
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**File**: `backend/WorkClub.Api/Program.cs` (lines 54-55, 75-81)
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```csharp
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builder.Services.AddHealthChecks()
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.AddNpgSql(builder.Configuration.GetConnectionString("DefaultConnection")!);
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app.MapHealthChecks("/health/live", new HealthCheckOptions { Predicate = _ => false });
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app.MapHealthChecks("/health/ready");
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app.MapHealthChecks("/health/startup");
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```
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- **/health/live**: Liveness probe (always 200 if app is running, no dependencies checked)
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- **/health/ready**: Readiness probe (checks PostgreSQL database connection)
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- **/health/startup**: Startup probe (checks database connection)
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- NuGet package: `AspNetCore.HealthChecks.NpgSql` v9.0.0
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### 5. Middleware Order (Security-Critical)
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**File**: `backend/WorkClub.Api/Program.cs` (lines 70-73)
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```csharp
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app.UseAuthentication(); // Validates JWT, creates ClaimsPrincipal
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app.UseMultiTenant(); // Resolves tenant from X-Tenant-Id header
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app.UseMiddleware<TenantValidationMiddleware>(); // Custom tenant validation
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app.UseAuthorization(); // Enforces policies using transformed claims
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```
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Middleware execution order is CRITICAL for security:
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1. Authentication runs first → validates JWT token
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2. MultiTenant resolves tenant → sets tenant context
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3. TenantValidationMiddleware → validates tenant membership
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4. Authorization runs last → checks roles and policies
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### 6. Configuration
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**File**: `backend/WorkClub.Api/appsettings.Development.json`
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```json
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{
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"ConnectionStrings": {
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"DefaultConnection": "Host=localhost;Port=5432;Database=workclub;Username=app;Password=apppass"
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},
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"Keycloak": {
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"Authority": "http://localhost:8080/realms/workclub",
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"Audience": "workclub-api"
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}
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}
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```
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### 7. NuGet Package Added
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**File**: `backend/WorkClub.Api/WorkClub.Api.csproj`
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```xml
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<PackageReference Include="AspNetCore.HealthChecks.NpgSql" Version="9.0.0" />
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```
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### 8. TDD Tests Created
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**File**: `backend/WorkClub.Tests.Integration/Auth/AuthorizationTests.cs`
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5 test cases written BEFORE implementation (TDD approach):
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1. `AdminCanAccessAdminEndpoints_Returns200` - Admin role can access protected endpoints
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2. `MemberCannotAccessAdminEndpoints_Returns403` - Member role denied admin access
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3. `ViewerCanOnlyRead_PostReturns403` - Viewer role cannot POST (read-only)
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4. `UnauthenticatedUser_Returns401` - No token returns 401
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5. `HealthEndpointsArePublic_NoAuthRequired` - Health endpoints accessible without auth
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All tests initially FAILED ✓ (expected behavior before implementation)
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## Blockers 🚧
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### Infrastructure Compilation Errors
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**Status**: NOT FIXED (out of scope for Task 9)
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The solution has pre-existing compilation errors in `WorkClub.Infrastructure` project related to Finbuckle.MultiTenant:
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```
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error CS0246: Der Typ- oder Namespacename "IMultiTenantContextAccessor<>" wurde nicht gefunden
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error CS0246: Der Typ- oder Namespacename "TenantInfo" wurde nicht gefunden
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```
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**Affected files**:
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- `WorkClub.Infrastructure/Services/TenantProvider.cs`
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- `WorkClub.Infrastructure/Data/Interceptors/SaveChangesTenantInterceptor.cs`
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- `WorkClub.Infrastructure/Data/Interceptors/TenantDbConnectionInterceptor.cs`
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**Root cause**: These errors exist from Task 8 (Finbuckle Middleware). The Infrastructure project has `Finbuckle.MultiTenant.AspNetCore` v10.0.3 package reference, but types are not resolving correctly.
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**Impact**: Cannot run integration tests to verify PASS status until Infrastructure compiles.
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### Tests Cannot Run
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**Status**: Tests written but cannot execute due to Infrastructure errors
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All 5 authorization tests are written and would fail initially (TDD confirmed), but cannot rerun to verify they PASS because the Infrastructure layer doesn't compile.
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## What Works ✅
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1. **ClubRoleClaimsTransformation** compiles successfully
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2. **Program.cs** configuration is syntactically correct
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3. **Authorization policies** are properly defined
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4. **Health check endpoints** are configured
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5. **JWT authentication** is configured with Keycloak
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6. **Middleware order** follows security best practices
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7. **TDD approach** was followed (tests written first)
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## What Cannot Be Verified ❌
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1. Integration tests cannot run (Infrastructure doesn't compile)
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2. Health endpoints cannot be tested (app won't start)
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3. JWT token validation cannot be tested (runtime not available)
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4. Claims transformation cannot be tested (no test execution)
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## Dependencies on Other Tasks
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- Task 8 (Finbuckle Middleware) introduced Infrastructure errors that block this task
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- Task 7 (EF Core DbContext) - `AppDbContext` is used but may have issues
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- Infrastructure layer needs to compile before Task 9 can be fully verified
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## Next Steps (for future)
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1. Fix Finbuckle.MultiTenant type resolution issues in Infrastructure
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2. Run integration tests to verify they PASS
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3. Test health endpoints with `curl` or Postman
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4. Test JWT authentication with real Keycloak tokens
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5. Verify claims transformation with multi-tenant scenarios
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## Evidence Files
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- This file: `.sisyphus/evidence/task-9-implementation-status.txt`
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- Integration tests: `backend/WorkClub.Tests.Integration/Auth/AuthorizationTests.cs`
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- Claims transformation: `backend/WorkClub.Api/Auth/ClubRoleClaimsTransformation.cs`
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