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Security: SyncFXPro/DFYT

Security

SECURITY.md

Security Considerations

Current Security Posture

This application is designed for local network use only. It has no authentication and should not be exposed to the internet.

Security Features

  • ✅ Runs on local network IP (not exposed to internet)
  • ✅ Temporary files are automatically cleaned up
  • ✅ Input validation for YouTube URLs
  • ✅ No persistent data storage

Security Limitations

  • ⚠️ No authentication - Anyone on your local network can use the server
  • ⚠️ CORS allows all origins - Configured for local development
  • ⚠️ No rate limiting - Could be abused by local network users
  • ⚠️ No input sanitization beyond URL validation - Relies on yt-dlp for safety

Recommendations

For Local Network Use (Current Setup)

  • Keep the server on your local network only
  • Don't expose port 2847 to the internet
  • Be aware that anyone on your WiFi/network can access it

If You Need Internet Access

  1. Add Authentication:

    # Add API key or basic auth
  2. Restrict CORS:

    allow_origins=["https://yourdomain.com"]  # Instead of "*"
  3. Add Rate Limiting:

    from slowapi import Limiter
    limiter = Limiter(key_func=get_remote_address)
  4. Use HTTPS:

    • Set up SSL/TLS certificates
    • Use a reverse proxy (nginx, Caddy)
  5. Add Input Validation:

    • Validate URL format more strictly
    • Sanitize all inputs
    • Add request size limits

Best Practices

  • ✅ Only run the server when needed
  • ✅ Don't leave it running 24/7 unless necessary
  • ✅ Use a firewall to restrict access if needed
  • ✅ Monitor server logs for suspicious activity
  • ✅ Keep dependencies updated: pip install --upgrade -r requirements.txt

Reporting Security Issues

If you discover a security vulnerability, please handle it responsibly and don't publish exploits publicly.

There aren't any published security advisories