Security fixes for OIDC authentication flow:
1. CSRF state validation (High): State nonce is now stored server-side
and validated on callback (single-use, 600s TTL)
2. PKCE S256 (Medium): code_challenge/code_verifier pair generated per
RFC 9126, sent in authorize URL and token exchange
3. Nonce in ID token (Medium): Random nonce included in authorize URL,
verified against ID token claims to prevent token replay
4. Secure token delivery (Medium): Tokens no longer in URL fragments.
One-time exchange code redirected to frontend, tokens retrieved via
POST /api/auth/oidc/exchange endpoint (60s TTL, single-use)
5. Registration guard (Low): POST /api/auth/register returns 403 when
disable_password_login is active in OIDC-only mode
- Remove Serialize/Deserialize from File, Folder, Session, User, Contact entities
- Create contact_persistence_dto.rs for JSONB persistence in infrastructure layer
- Update contact_pg_repository to use persistence DTOs
- Fix dependency on zip crate (downgrade from 7.2.0 to 2.1.0)
- Fix unused variable warnings in main.rs
- Move PathService import from domain to infrastructure
- Add missing fields to CoreServices and RepositoryServices
- Create proper service initialization in main.rs
Clean Architecture improvements:
- Domain layer no longer depends on serde framework
- Persistence concerns isolated to infrastructure layer
- TokenClaims in auth_service.rs is only exception (required for JWT)
Dionisio