We are running queer.haus in "limited federation mode" so we work with an allow list instead of a block list for federation. This mode hides all public pages by default, which makes it difficult to explain who we are to curious visitors.
This changes that so the about pages are still visible even in limited federation mode. All other public pages like profiles and posts are still hidden. I think this might be valuable also for other hometown instances.
More info on limited federation mode: https://docs.joinmastodon.org/admin/config/#limited_federation_mode
This code change initially comes from https://awoo.space (https://github.com/noiob/awoospace)
* Remove support for OAUTH_REDIRECT_AT_SIGN_IN
Fixes#15959
Introduced in #6540, OAUTH_REDIRECT_AT_SIGN_IN allowed skipping the log-in form
to instead redirect to the external OmniAuth login provider.
However, it did not prevent the log-in form on /about introduced by #10232 from
appearing, and completely broke with the introduction of #15228.
As I restoring that previous log-in flow without introducing a security
vulnerability may require extensive care and knowledge of how OmniAuth works,
this commit removes support for OAUTH_REDIRECT_AT_SIGN_IN instead for the time
being.
* Add OMNIAUTH_ONLY environment variable to enforce external log-in only
* Disable user registration when OMNIAUTH_ONLY is set to true
* Replace log-in links When OMNIAUTH_ONLY is set with exactly one OmniAuth provider