rCTF is a platform for hosting cybersecurity capture-the-flag competitions.

rCTF keeps deployment simple without locking organizers into one set of services. The platform runs as a single bundle, and its major integrations use replaceable providers with a common configuration format. An event can use only what it needs and change providers later without rewriting the platform.

To get started with rCTF, visit the documentation. A live demo is also available for viewing. If you need help with rCTF, start a discussion.

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Development

rCTF requires Bun v1.0+.

1. Install dependencies:

   bun i
   

2. Start the development containers:

   docker compose -f compose.dev.yml up -d
   

3. Create rctf.d/00-development.yaml and enter the following configuration:

   Open me!

   ctfName: rCTF Development
   meta:
     description: 'Example rCTF instance'
     imageUrl: 'https://example.com'
   homeContent: "A description of your CTF. Markdown supported.\n\n<timer></timer>"
   
   origin: http://127.0.0.1:5173
   divisions:
     open: Open
   tokenKey: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
   startTime: 0
   endTime: 99999999999999
   
   database:
     sql:
       host: 127.0.0.1
       port: 5432
       # host: postgres
       user: rctf
       password: DO_NOT_USE_ME
       database: rctf
     redis:
       host: 127.0.0.1
       port: 6379
       # host: redis
       password: DO_NOT_USE_ME
     migrate: before
   
   # email:
   #   from: [email protected]
   #   provider:
   #     name: 'emails/smtp'
   #     options:
   #       smtpUrl: 'smtp://es3n1n%es3n1n.eu:[email protected]:587'
   
   # ctftime:
   #   clientId: 2288
   #   clientSecret: secret
   
   # instancers:
   #   docker:
   #     name: 'instancers/docker'
   #     options:
   #       authToken: 'changeme!'
   #       apiUrl: 'http://tiny-instancer:1337'
   # defaultInstancer: docker
   
   # captcha:
   #   provider:
   #     name: 'captcha/hcaptcha'
   #     options:
   #       siteKey: 'key'
   #       secretKey: 'secret'
   
   # bloodBot:
   #   bloodsCount: 1
   #   destinations:
   #     - provider:
   #         name: 'messages/discord'
   #         options:
   #           url: 'webhook-url'
   #     - provider:
   #         name: 'messages/telegram'
   #         options:
   #           botToken: 'bot-token'
   #           chatId: 1337
   
   # adminBot:
   #   provider:
   #     name: 'admin-bots/rctf-ts'
   #     options:
   #       secretKey: beans
   #       endpoint: 'http://admin-bot:21337'
   
   # avatarsModeration:
   #   provider:
   #     name: 'moderation/openai'
   #     options:
   #         apiKey: 'key'
   
   # globalSiteTag: 'G-1337'
   
   # uploadProvider:
   #   name: 'uploads/gcs'
   #   options:
   #     projectId: project-id
   #     bucketName: bucket-name
   #     credentials:
   #       private_key: |-
   #         key
   #       client_email: [email protected]
   

4. Start the development server:

   bun dev
   

   For frontend work, run bun dev:mock to seed the database with a reproducible set of mock teams, challenges, and solves.