factoriauth - an unofficial Factorio authentication server

Let's say you and your friends are

on an oil rig,
in space, or
in the far future,

and you want to host a Factorio server. Because you don't have an internet connection (or the official authentication servers don't exist anymore), your only option is to disable require_user_verification in the server config - but this allows anyone to connect as any user, which is no good, especially for PvP scenarios! Wouldn't it be great if you could set up your own authentication server?

factoriauth is exactly that. It allows clients to log in as custom users provided by one of several authentication backends (e.g. LDAP or a passwd-style file), and allows servers to validate that these custom users are properly authenticated.

Roadmap

Complete

Nothing yet!

Planned

user token generation (POST /api-login)
- auth backends: LDAP, user file, PAM(?)
server padlock generation (POST /generate-server-padlock-2)
user_server_key generation (POST /generate-user-server-key-2)
server padlock proxying (to allow e.g. factorio.com users to join servers using a custom auth server)

Unplanned

Setup

Configuring factoriauth

TBD

Configuring clients/servers

To use the auth server, the following snippet needs to be added to the clients' and servers' config.ini, replacing the URL of the server as appropriate:

[servers]
auth-server=https://my-auth-server.example/

Unless your clients are really offline, you also need to override the updater server to an invalid/unreachable address, otherwise the client will contact it with an invalid token on startup and prompt for a re-login:

[servers]
updater-server=http://invalid.example

Running factoriauth

TBD

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