# GDPR Compliance Checklist

This document tracks GDPR compliance implementation for the KoproGo platform.

## ✅ Implemented Features

### Article 15: Right to Access (Data Export)
- [x] **Endpoint**: `GET /api/v1/gdpr/export`
- [x] **Authentication**: JWT-based, self-service + SuperAdmin bypass
- [x] **Authorization**: Users can only export their own data (unless SuperAdmin)
- [x] **Data Included**:
  - [x] User profile (email, name, role, created_at, updated_at)
  - [x] Owner profiles (all linked via email)
  - [x] Related data (buildings, units, expenses, meetings, documents)
  - [x] Ownership history (unit_owners with temporal tracking)
- [x] **Export Format**: JSON with structured data
- [x] **Metadata**: Total items count, export date (RFC3339)
- [x] **Audit Logging**: Success and failure events persisted to database
- [x] **Tests**: Unit tests (use cases, DTOs) + E2E tests

### Article 17: Right to Erasure (Data Deletion)
- [x] **Endpoint**: `DELETE /api/v1/gdpr/erase`
- [x] **Authentication**: JWT-based, self-service + SuperAdmin bypass
- [x] **Authorization**: Users can only erase their own data (unless SuperAdmin)
- [x] **Anonymization Strategy**:
  - [x] Users: `is_anonymized=true`, email/name/phone replaced with `anonymized_*`
  - [x] Owners: Same anonymization pattern
  - [x] Preserves referential integrity (7-year retention for financial records)
- [x] **Legal Holds Validation**:
  - [x] Checks for unpaid expenses before erasure
  - [x] Returns 409 Conflict if legal obligations prevent deletion
- [x] **Audit Logging**: Success and failure events persisted to database
- [x] **Tests**: Unit tests (use cases, DTOs, repositories) + E2E tests planned

### Article 17: Erasure Eligibility Check
- [x] **Endpoint**: `GET /api/v1/gdpr/can-erase`
- [x] **Functionality**: Pre-flight check for legal holds
- [x] **Returns**: Boolean `can_erase` with user_id
- [x] **Audit Logging**: GdprErasureCheckRequested event logged

### Article 20: Right to Data Portability
- [x] **Machine-Readable Format**: JSON export with consistent structure
- [x] **Complete Data Set**: All personal data included in export
- [x] **Timestamp Standardization**: RFC3339 format for all dates

### Article 30: Records of Processing Activities
- [x] **Audit Log Table**: `audit_logs` with comprehensive tracking
- [x] **Retention Policy**: 7-year retention (Belgium GDPR requirement)
  - [x] `retention_until` field with default NOW() + 7 years
  - [x] Index on retention_until for efficient cleanup
- [x] **Event Types**: 5 GDPR-specific event types
  - [x] GdprDataExported
  - [x] GdprDataExportFailed
  - [x] GdprDataErased
  - [x] GdprDataErasureFailed
  - [x] GdprErasureCheckRequested
- [x] **Audit Data Captured**:
  - [x] Event type, timestamp, user_id, organization_id
  - [x] Resource type and ID
  - [x] Success/failure status
  - [x] Error messages (for failures)
  - [x] Metadata (operation-specific details)
  - [x] IP address and user agent (infrastructure fields ready)
- [x] **Persistence**: Async logging to database via `AuditLogger`
- [x] **Repository Methods**: 7 methods for querying/managing audit logs
  - [x] create, find_by_id, find_all_paginated
  - [x] find_recent, find_failed_operations
  - [x] delete_older_than, count_by_filters
- [x] **Tests**: E2E tests verify persistence and retention

## 🚧 Partially Implemented / TODO

### General GDPR Requirements
- [ ] **Privacy Policy**: Document data processing activities
- [ ] **Consent Management**: Cookie consent, data processing consent
- [ ] **Data Protection Officer (DPO)**: Designate DPO contact
- [ ] **Data Breach Notification**: 72-hour breach notification procedure
- [ ] **Data Minimization**: Review data collection practices
- [ ] **Purpose Limitation**: Document purpose for each data field
- [ ] **Storage Limitation**: Automated cleanup of expired data
- [ ] **Security Measures**: Encryption at rest, encryption in transit
- [ ] **Data Processing Agreements**: Contracts with third-party processors

### Article 13-14: Information to be Provided
- [ ] **Transparency**: Inform users about data processing at registration
- [ ] **Privacy Notice**: Clear explanation of data usage

### Article 16: Right to Rectification
- [ ] **Endpoint**: `PATCH /api/v1/gdpr/rectify` (user profile updates)
- [ ] **Functionality**: Allow users to correct inaccurate data

### Article 18: Right to Restriction
- [ ] **Endpoint**: `POST /api/v1/gdpr/restrict`
- [ ] **Functionality**: Temporarily restrict data processing

### Article 21: Right to Object
- [ ] **Endpoint**: `POST /api/v1/gdpr/object`
- [ ] **Functionality**: Allow users to object to data processing

### Article 25: Data Protection by Design and Default
- [ ] **Pseudonymization**: Hash or mask sensitive data where possible
- [ ] **Access Controls**: Role-based access control (RBAC) - partially implemented
- [ ] **Encryption**: Encrypt sensitive fields in database

### Article 32: Security of Processing
- [ ] **Encryption at Rest**: Database encryption (PostgreSQL TDE)
- [ ] **Encryption in Transit**: HTTPS enforced (production)
- [ ] **Password Security**: Bcrypt with proper cost factor (implemented)
- [ ] **Session Management**: Secure JWT handling (implemented)
- [ ] **Audit Log Security**: Access-controlled audit log viewing
- [ ] **Backup Encryption**: Encrypted backups with retention

### Article 33-34: Data Breach Procedures
- [ ] **Breach Detection**: Monitoring and alerting system
- [ ] **Breach Response Plan**: Documented incident response procedure
- [ ] **Notification Templates**: Email templates for breach notifications

## 📊 Test Coverage

### Unit Tests
- [x] **Domain Layer**: 9 tests for GDPR entities
- [x] **Application Layer**:
  - [x] GDPR DTOs: 6 tests
  - [x] GDPR Use Cases: 9 tests (mocked repository)
  - [x] AuditLogger: 1 test
- [x] **Infrastructure Layer**:
  - [x] PostgresGdprRepository: Compile-time verified queries
  - [x] GDPR Handlers: 3 structural tests
- [x] **Total**: 180 unit tests passing

### Integration Tests
- [x] **E2E GDPR Tests**: 2 tests in `tests/e2e_gdpr_audit.rs`
  - [x] Audit log persistence for export
  - [x] Audit log persistence for erasure check
  - [x] 7-year retention validation
- [ ] **E2E GDPR Workflows**: Full GDPR export/erase scenarios (planned)

### Planned Tests
- [ ] **BDD Scenarios**: Cucumber tests for user-facing GDPR workflows (Phase 9)
- [ ] **Playwright E2E**: Frontend GDPR interface tests (Phase 12)
- [ ] **Performance Tests**: Load testing for audit log writes

## 🔒 Security Considerations

### Implemented
- [x] **Authentication**: JWT-based with role enforcement
- [x] **Authorization**: Self-service + SuperAdmin bypass
- [x] **Input Validation**: UUID validation, DTO validation
- [x] **SQL Injection Prevention**: sqlx with parameterized queries
- [x] **Error Handling**: Generic error messages, detailed logging
- [x] **Audit Logging**: All GDPR operations logged

### TODO
- [ ] **Rate Limiting**: Prevent abuse of GDPR endpoints
- [ ] **IP Address Logging**: Capture client IP in audit logs
- [ ] **User Agent Logging**: Capture client user agent in audit logs
- [ ] **MFA for Erasure**: Require additional verification for data erasure
- [ ] **Email Confirmation**: Send confirmation email after export/erase
- [ ] **Cooldown Period**: Prevent repeated export requests (e.g., 1 per day)

## 📅 Retention Policies

### Implemented
- [x] **Audit Logs**: 7-year retention (Article 30, Belgium requirement)
  - [x] Database field: `retention_until`
  - [x] Index for efficient cleanup queries
  - [x] Repository method: `delete_older_than()`

### TODO
- [ ] **Automated Cleanup Job**: Cron job to delete expired audit logs
- [ ] **Anonymized User Cleanup**: Determine retention for anonymized data
- [ ] **Document Retention**: Define retention for uploaded documents
- [ ] **Financial Data Retention**: 7-year minimum for Belgium law

## 🌍 Multi-Tenancy Considerations

### Implemented
- [x] **Organization Isolation**: All GDPR operations scoped to organization_id
- [x] **SuperAdmin Override**: SuperAdmin can export across organizations
- [x] **User-Owner Linking**: Email-based discovery of related owners
- [x] **Partial Anonymization**: Only anonymize owners linked to user email

### TODO
- [ ] **Cross-Tenant Data Leakage Prevention**: Security audit
- [ ] **Organization-Level GDPR Settings**: Custom retention policies per org

## 📋 Next Steps (Priority Order)

1. **Phase 6**: Admin endpoints for GDPR management
   - [ ] `GET /api/v1/admin/gdpr/audit-logs` (with pagination/filters)
   - [ ] `GET /api/v1/admin/gdpr/users/:id/export` (admin-initiated export)
   - [ ] `DELETE /api/v1/admin/gdpr/users/:id/erase` (admin-initiated erasure)

2. **Phase 7**: Rate limiting and security hardening
   - [ ] Implement rate limiting for GDPR endpoints
   - [ ] Add IP address and user agent capture in handlers
   - [ ] Email notifications for export/erase operations

3. **Phase 8**: Additional GDPR rights
   - [ ] Right to Rectification (Article 16)
   - [ ] Right to Restriction (Article 18)
   - [ ] Right to Object (Article 21)

4. **Phase 9**: BDD scenarios (Cucumber)
   - [ ] GDPR export workflow
   - [ ] GDPR erase workflow with legal holds
   - [ ] Audit log verification

5. **Phase 10-11**: Frontend implementation
   - [ ] Privacy settings page (`/settings/privacy`)
   - [ ] GDPR export button + download
   - [ ] GDPR erase button + confirmation modal
   - [ ] Admin dashboard for GDPR operations

6. **Phase 12**: Playwright E2E tests
   - [ ] Complete export workflow (button → download)
   - [ ] Complete erase workflow (button → confirmation → success)
   - [ ] Admin GDPR management interface

7. **Phase 13**: Documentation
   - [ ] Privacy Policy
   - [ ] Terms of Service
   - [ ] Cookie Policy
   - [ ] GDPR Compliance Guide for administrators

8. **Phase 14**: Automated cleanup and monitoring
   - [ ] Cron job for audit log retention
   - [ ] Monitoring dashboard for GDPR requests
   - [ ] Alerting for failed GDPR operations

## 📚 References

- [GDPR Official Text](https://gdpr-info.eu/)
- [Belgian Data Protection Authority](https://www.autoriteprotectiondonnees.be/)
- [ICO GDPR Guidance](https://ico.org.uk/for-organisations/guide-to-data-protection/guide-to-the-general-data-protection-regulation-gdpr/)

## ✅ Sign-Off

- **Last Updated**: 2025-10-30
- **Reviewed By**: Development Team
- **GDPR Compliance Status**: ⚠️ Partial (Core features implemented, additional requirements pending)
- **Recommended Actions**: Proceed with Phase 6-8 before production deployment