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Claire bddd9ba36d
Add OMNIAUTH_ONLY environment variable to enforce externa log-in (#17288)
* 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
2022-01-23 15:52:58 +01:00
..
two_factor Add WebAuthn as an alternative 2FA method (#14466) 2020-08-24 16:46:27 +02:00
new.html.haml Add OMNIAUTH_ONLY environment variable to enforce externa log-in (#17288) 2022-01-23 15:52:58 +01:00
sign_in_token.html.haml Add e-mail-based sign in challenge for users with disabled 2FA (#14013) 2020-06-09 10:23:06 +02:00
two_factor.html.haml Add subresource integrity for JS and CSS assets (#15096) 2020-11-06 11:56:31 +01:00