CTFd-TrackFilter

A CTFd plugin that filters challenges by team track (red-team / blue-team).

Designed for Operation Vercors where two parallel tracks exist:

• Red Team (GRANITE STORM) — 50 attacker challenges
• Blue Team (VEM-CERT) — 45 defender challenges

How it works

1. Teams choose their track at creation time via an extended team creation form
2. An after_request hook filters GET /api/v1/challenges to show only challenges whose category starts with the team's track prefix ("Red Team" or "Blue Team")
3. Direct access to individual challenges (/api/v1/challenges/<id>) from the wrong track returns 404
4. CSS theming changes the navbar and accent colors based on the team's track
5. An admin page at /admin/track_filter lets admins view and reassign team tracks

Installation

Mount the track_filter/ directory into CTFd's plugins folder:

# docker-compose.yml
ctfd:
  volumes:
    - ./CTFd-TrackFilter/track_filter:/opt/CTFd/CTFd/plugins/track_filter

The plugin auto-creates its database table (team_tracks) on first load.

Category convention

Challenges must use category prefixes matching the track:

• Red Team — reconnaissance
• Blue Team — forensics
• [Optional] Red Team — bonus (optional prefix is stripped before matching)

Testing

cd CTFd-TrackFilter
PYTHONPATH=. python3 -m pytest tests/ -v

Tests run standalone with a minimal Flask+SQLAlchemy environment (no CTFd installation required).