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Summary: Ref T7303. Currently, our handling of "scope" is fairly rigid and adheres to the spec, but some of these behaviors don't make much sense in practice. Soften some behaviors and make them more flexible: **Soft Failure on Unknown Permissions**: If a client asks for a permission we don't know about, just warn that we don't recognize it instead of fataling. In particular, I plan to make `offline_access` and `whoami` implicit. Older clients that request these permissions will still work fine as long as we don't hard-fatal. **Move `user.whoami` to ALWAYS scope**: Make `whoami` a default permission. We've already done this, in effect; this just formalizes it. **Tokens no longer expire**: Make `offline_access` (infinite-duration tokens) a default permission. I think the OAuth model doesn't map well to reality. It is common for other providers to issue "temporary" tokens with a duration of multiple years, and the refesh workflow is sort of silly. We can add a "temporary" scope later if we need temporary tokens. This flow was potentially extra silly with the "log out of Phacility" use case, where we might need to have you log in again before we could log you out, which is bizarre and senseless. Avoid this nonsense. **Move away from granular permissions**: Users currently get to pick-and-choose which permissions they grant, but this likely rarely/never works in practice and is fairly hostile since applications can't communicate which permissions they need. Applications which can actually operate with only some subset of permissions can make separate requests (e.g., when you activate "cool feature X", it asks for X permission). I think applications that do this are rare; pretty much everything just asks for tons of permissions and everyone grants them. Making this all-or-nothing is better for well-behaved applications and better for users. It's also slightly better for overzealous applications that ask for more than they need, but whatever. Users can make an informed decision, hopefully, and I plan to let administrators force applications to a subset of permissions once we introduce meaningful scopes. Test Plan: - Generated tokens. - Used tokens. - Authorized an instance. - Faked some bogus scopes, got clean authorization. Reviewers: chad Reviewed By: chad Maniphest Tasks: T7303 Differential Revision: https://secure.phabricator.com/D15621 |
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