Jeremy Daer
ee37809220
Message content is delivered over turbo streams, which ran on the stock Turbo::StreamsChannel. That channel verifies the signature on the stream name and nothing else. The name carries no expiry and no binding to a user, so one read off the page while a member kept working after the membership was revoked. Revocation made this worse rather than better. Membership#after_destroy_commit disconnects the user with reconnect: true, and the client replays its subscriptions on the new socket: RoomChannel re-checks membership and rejects, while the turbo subscription re-verified only the signature and was accepted. RoomMessagesChannel re-checks membership on every subscribe, deriving the room from the verified stream name so there is no parameter to point elsewhere. Since the subscriber names the channel it wants, the stock channel would otherwise be a way around that check, so it now turns these stream names away and this is the only door.
Campfire
Campfire is a web-based chat application. It supports many of the features you'd expect, including:
- Multiple rooms, with access controls
- Direct messages
- File attachments with previews
- Search
- Notifications (via Web Push)
- @mentions
- API, with support for bot integrations
Running your own Campfire instance
Campfire's Docker image contains everything needed for a fully-functional,
single-machine deployment. This includes the web app, background jobs, caching,
file serving, and SSL. You can use our pre-built image at
ghcr.io/basecamp/once-campfire:latest, or build your own from this repo.
Deploying with ONCE
The easiest way to self-host Campfire is with ONCE. It will guide you through the initial set up and then keep your instance up to date automatically.
If you don't already have once installed, run this on the machine you want to run Campfire on:
curl https://get.once.com | sh
once will launch as soon as the install is finished.
Choose Campfire from the list of applications, follow the instructions, and ONCE will take care of the rest.
If you prefer the command line to the dashboard, you can deploy directly:
once deploy ghcr.io/basecamp/once-campfire --host chat.example.com
Deploying with Docker
If you'd rather run the Docker image yourself, you can read more about that in the self-hosting guide.
Tip
When you start Campfire for the first time, you'll be guided through a wizard to create an admin account. The email address that you enter for the admin account will be visible on the sign-in page, it's there so that people have someone to contact if they need help with their account. If that bothers you, put in any email address you want and create yourself a new admin account.
Development
You are welcome - and encouraged - to modify Campfire to your liking. Please see our development guide for how to get Campfire set up for local development.
Security
See SECURITY.md for how to report a vulnerability and a description of our trust model.