Is there any work or planned work around enterprise authentication and access? For instance, indexing Sharepoint in such a way where a user of Danswer isn't exposed to sharepoint information they wouldn't otherwise have access to?
Yes, there are several options for user authentication (Basic Auth, Google OAuth, OIDC, SAML).
Currently the RBAC is managed via the Danswer and this controls who has access to which documents (it's done at the connector level as it would be untenable to assign access to documents individually).
We're also working on automatically sync-ing permissions from the sources. Basically seeing which emails have access to each doc and mapping it to the Danswer users.