Make Auth-Token middleware use keystoneclient.

Registered by Jamie Lennox

Currently the auth_token middleware uses httplib to talk directly to the keystone APIs to do token validation. All the functionality that is used here should be accessible to everyone and so we should move this into the keystoneclient and make auth_token use keystoneclient to do its validation.

Blueprint information

Status:
Complete
Approver:
None
Priority:
Undefined
Drafter:
None
Direction:
Needs approval
Assignee:
Jamie Lennox
Definition:
Obsolete
Series goal:
None
Implementation:
Unknown
Milestone target:
None
Completed by
Morgan Fainberg

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(morganfainberg): Marking as obsolete.

Directly related bug: https://bugs.launchpad.net/python-keystoneclient/+bug/1195528

Gerrit topic: https://review.openstack.org/#q,topic:bp/keystoneclient-auth-token,n,z

Addressed by: https://review.openstack.org/38763 (abandoned)
    V2 Client Token Validation.

Gerrit topic: https://review.openstack.org/#q,topic:catalog,n,z

Addressed by: https://review.openstack.org/40175 (WIP)
    V3 Client Token Validation.

Addressed by: https://review.openstack.org/74908
    Convert auth_token to use session

Addressed by: https://review.openstack.org/94529
    Auth Plugin invalidation

(?)

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* Blueprints in grey have been implemented.

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