Summary:
For self-hosted Grist, forward auth has proven useful, where
some proxy wrapped around Grist manages authentication, and
passes on user information to Grist in a trusted header.
The current implementation is adequate when Grist is the
only place where the user logs in or out, but is confusing
otherwise (see https://github.com/gristlabs/grist-core/issues/207).
Here we take some steps to broaden the scenarios Grist's
forward auth support can be used with:
* When a trusted header is present and is blank, treat
that as the user not being logged in, and don't look
any further for identity information. Specifically,
don't look in Grist's session information.
* Add a `GRIST_IGNORE_SESSION` flag to entirely prevent
Grist from picking up identity information from a cookie,
in order to avoid confusion between multiple login methods.
* Add tests for common scenarios.
Test Plan: added tests
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3482
Summary:
Previously, absence of `GRIST_DOCS_S3_BUCKET` was equated with absence
of external storage, but that is no longer true now that Azure is
available. Azure could be used by setting `GRIST_DOCS_S3_BUCKET`
but the alternative `GRIST_AZURE_CONTAINER` flag is friendlier.
Test Plan:
confirmed manually that Azure can be configured and
used now without `GRIST_DOCS_S3_BUCKET`
Reviewers: alexmojaki
Reviewed By: alexmojaki
Subscribers: alexmojaki
Differential Revision: https://phab.getgrist.com/D3448
