missing X-Auth-Token Header yields Internal Server Error (500) instead of 401

[Ralf Haferkamp]

Example:

curl http://<keystone>:35357/v2.0/tenants
{"error": {"message": "An unexpected error prevented the server from fulfilling your request. object of type 'NoneType' has no len()", "code": 500, "title": "Internal Server Error"}}

Expected result (and the actual behavior of essex):
{"error": {"message": "The request you have made requires authentication.", "code": 401, "title": "Not Authorized"}}

This seems to be specific to the sql and memcache backends.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/13368

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/13368
Committed: http://github.com/openstack/keystone/commit/c9a4141ab776427c5f77693630542450cd5167a7
Submitter: Jenkins
Branch: master

commit c9a4141ab776427c5f77693630542450cd5167a7
Author: Ralf Haferkamp <email address hidden>
Date: Thu Sep 20 17:29:12 2012 +0200

    Return a meaningful Error when token_id is missing

    To make keystone return HTTP 401 Unauthorized instead of 500 Internal Server
    Error when processing request that miss the X-Auth-Token Header.

    Fixes Bug 1053474

    Change-Id: Ib830fce7bb3b29fa1bc385f64c7c0ecdf5cd1644