Files
TimeTracker/env.example
Dries Peeters 20824dbcb1 feat: Add customizable Kanban board columns and enhance CSRF configuration
This commit introduces a comprehensive Kanban board customization system and
improves CSRF token configuration for Docker deployments.

## Major Features

### 1. Customizable Kanban Board Columns
Add complete kanban column customization system allowing users to define
custom workflow states beyond the default columns.

**New Components:**
- Add KanbanColumn model with full CRUD operations (app/models/kanban_column.py)
- Add kanban routes blueprint with admin endpoints (app/routes/kanban.py)
- Add kanban column management templates (app/templates/kanban/)
- Add migration 019 for kanban_columns table (migrations/)

**Features:**
- Create unlimited custom columns with unique keys, labels, icons, and colors
- Drag-and-drop column reordering with position persistence
- Toggle column visibility without deletion
- Protected system columns (todo, in_progress, done) prevent accidental deletion
- Complete state marking for columns that should mark tasks as done
- Real-time updates via SocketIO broadcasts when columns change
- Font Awesome icon support (5000+ icons)
- Bootstrap color scheme integration
- Comprehensive validation and error handling

**Integration:**
- Update Task model to work with dynamic column statuses (app/models/task.py)
- Update task routes to use kanban column API (app/routes/tasks.py)
- Update project routes to fetch active columns (app/routes/projects.py)
- Add kanban column management links to base template (app/templates/base.html)
- Update kanban board templates to render dynamic columns (app/templates/tasks/)
- Add cache prevention headers to force fresh column data

**API Endpoints:**
- GET /api/kanban/columns - Fetch all active columns
- POST /api/kanban/columns/reorder - Reorder columns
- GET /kanban/columns - Column management interface (admin only)
- POST /kanban/columns/create - Create new column (admin only)
- POST /kanban/columns/<id>/edit - Edit column (admin only)
- POST /kanban/columns/<id>/delete - Delete column (admin only)
- POST /kanban/columns/<id>/toggle - Toggle column visibility (admin only)

### 2. Enhanced CSRF Configuration
Improve CSRF token configuration and documentation for Docker deployments.

**Configuration Updates:**
- Add WTF_CSRF_ENABLED environment variable to all docker-compose files
- Add WTF_CSRF_TIME_LIMIT environment variable with 1-hour default
- Update app/config.py to read CSRF settings from environment
- Add SECRET_KEY validation in app/__init__.py to prevent production deployment
  with default keys

**Docker Compose Updates:**
- docker-compose.yml: CSRF enabled by default for security testing
- docker-compose.remote.yml: CSRF always enabled in production
- docker-compose.remote-dev.yml: CSRF enabled with production-like settings
- docker-compose.local-test.yml: CSRF can be disabled for local testing
- Add helpful comments explaining each CSRF-related environment variable
- Update env.example with CSRF configuration examples

**Verification Scripts:**
- Add scripts/verify_csrf_config.sh for Unix systems
- Add scripts/verify_csrf_config.bat for Windows systems
- Scripts check SECRET_KEY, CSRF_ENABLED, and CSRF_TIME_LIMIT settings

### 3. Database Initialization Improvements
- Update app/__init__.py to run pending migrations on startup
- Add automatic kanban column initialization after migrations
- Improve error handling and logging during database setup

### 4. Configuration Management
- Update app/config.py with new CSRF and kanban-related settings
- Add environment variable parsing with sensible defaults
- Improve configuration validation and error messages

## Documentation

### New Documentation Files
- CUSTOM_KANBAN_README.md: Quick start guide for kanban customization
- KANBAN_CUSTOMIZATION.md: Detailed technical documentation
- IMPLEMENTATION_SUMMARY.md: Implementation details and architecture
- KANBAN_AUTO_REFRESH_COMPLETE.md: Real-time update system documentation
- KANBAN_REFRESH_FINAL_FIX.md: Cache and refresh troubleshooting
- KANBAN_REFRESH_SOLUTION.md: Technical solution for data freshness
- docs/CSRF_CONFIGURATION.md: Comprehensive CSRF setup guide
- CSRF_DOCKER_CONFIGURATION_SUMMARY.md: Docker-specific CSRF setup
- CSRF_TROUBLESHOOTING.md: Common CSRF issues and solutions
- APPLY_KANBAN_MIGRATION.md: Migration application guide
- APPLY_FIXES_NOW.md: Quick fix reference
- DEBUG_KANBAN_COLUMNS.md: Debugging guide
- DIAGNOSIS_STEPS.md: System diagnosis procedures
- BROWSER_CACHE_FIX.md: Browser cache troubleshooting
- FORCE_NO_CACHE_FIX.md: Cache prevention solutions
- SESSION_CLOSE_ERROR_FIX.md: Session handling fixes
- QUICK_FIX.md: Quick reference for common fixes

### Updated Documentation
- README.md: Add kanban customization feature description
- Update project documentation with new features

## Testing

### New Test Files
- test_kanban_refresh.py: Test kanban column refresh functionality

## Technical Details

**Database Changes:**
- New table: kanban_columns with 11 columns
- Indexes on: key, position
- Default data: 4 system columns (todo, in_progress, review, done)
- Support for both SQLite (development) and PostgreSQL (production)

**Real-Time Updates:**
- SocketIO events: 'kanban_columns_updated' with action type
- Automatic page refresh when columns are created/updated/deleted/reordered
- Prevents stale data by expiring SQLAlchemy caches after changes

**Security:**
- Admin-only access to column management
- CSRF protection on all column mutation endpoints
- API endpoints exempt from CSRF (use JSON and other auth mechanisms)
- System column protection prevents data integrity issues
- Validation prevents deletion of columns with active tasks

**Performance:**
- Efficient querying with position-based ordering
- Cached column data with cache invalidation on changes
- No-cache headers on API responses to prevent stale data
- Optimized database indexes for fast lookups

## Breaking Changes

None. This is a fully backward-compatible addition.

Existing workflows continue to work with the default columns.
Custom columns are opt-in via the admin interface.

## Migration Notes

1. Run migration 019 to create kanban_columns table
2. Default columns are initialized automatically on first run
3. No data migration needed for existing tasks
4. Existing task statuses map to new column keys

## Environment Variables

New environment variables (all optional with defaults):
- WTF_CSRF_ENABLED: Enable/disable CSRF protection (default: true)
- WTF_CSRF_TIME_LIMIT: CSRF token expiration in seconds (default: 3600)
- SECRET_KEY: Required in production, must be cryptographically secure

See env.example for complete configuration reference.

## Deployment Notes
2025-10-11 19:56:45 +02:00

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# Flask settings
# CRITICAL: Change SECRET_KEY in production! Used for sessions, cookies, and CSRF tokens.
# Generate a secure key with: python -c "import secrets; print(secrets.token_hex(32))"
# The same key must be used across restarts and all app replicas.
SECRET_KEY=your-secret-key-here
FLASK_ENV=production
FLASK_DEBUG=false
# Database settings
DATABASE_URL=postgresql+psycopg2://timetracker:timetracker@db:5432/timetracker
POSTGRES_DB=timetracker
POSTGRES_USER=timetracker
POSTGRES_PASSWORD=timetracker
POSTGRES_HOST=db
# Session settings
SESSION_COOKIE_SECURE=false
SESSION_COOKIE_HTTPONLY=true
PERMANENT_SESSION_LIFETIME=86400
# Application settings
TZ=Europe/Rome
CURRENCY=EUR
ROUNDING_MINUTES=1
SINGLE_ACTIVE_TIMER=true
IDLE_TIMEOUT_MINUTES=30
# User management
ALLOW_SELF_REGISTER=true
ADMIN_USERNAMES=admin
# Authentication
# Options: local | oidc | both
AUTH_METHOD=local
# OIDC (used when AUTH_METHOD=oidc or both)
# OIDC_ISSUER=https://login.microsoftonline.com/<tenant>/v2.0
# OIDC_CLIENT_ID=
# OIDC_CLIENT_SECRET=
# OIDC_REDIRECT_URI=https://yourapp.example.com/auth/oidc/callback
# OIDC_SCOPES=openid profile email
# OIDC_USERNAME_CLAIM=preferred_username
# OIDC_FULL_NAME_CLAIM=name
# OIDC_EMAIL_CLAIM=email
# OIDC_GROUPS_CLAIM=groups
# OIDC_ADMIN_GROUP=
# OIDC_ADMIN_EMAILS=
# OIDC_POST_LOGOUT_REDIRECT_URI=https://yourapp.example.com/
# Backup settings
BACKUP_RETENTION_DAYS=30
BACKUP_TIME=02:00
# File upload settings
MAX_CONTENT_LENGTH=16777216
UPLOAD_FOLDER=/data/uploads
# CSRF protection
# IMPORTANT: Keep CSRF enabled in production for security
# Only disable for development/testing if needed
WTF_CSRF_ENABLED=true
WTF_CSRF_TIME_LIMIT=3600
# TROUBLESHOOTING CSRF issues ("CSRF token missing or invalid" errors):
# 1. SECRET_KEY changed? All CSRF tokens become invalid when SECRET_KEY changes
# 2. Cookies blocked? Check browser settings and allow cookies from your domain
# 3. Behind a proxy? Ensure proxy forwards cookies and doesn't strip them
# 4. Token expired? Increase WTF_CSRF_TIME_LIMIT (in seconds)
# 5. Multiple app instances? All must use the SAME SECRET_KEY
# 6. Clock skew? Ensure server time is synchronized (use NTP)
# 7. Still broken? Try: docker-compose restart app
# 8. For testing only: Set WTF_CSRF_ENABLED=false (NOT for production!)
# See docs/CSRF_CONFIGURATION.md for detailed troubleshooting
# Logging
LOG_LEVEL=INFO
LOG_FILE=/data/logs/timetracker.log