Open Stack

Fix proposed to branch: stable/queens
Review: https://review.openstack.org/564219

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https://bugs.launchpad.net/bugs/1703369

Title:
  get_identity_providers policy should be singular

Status in OpenStack Dashboard (Horizon):
  Fix Released
Status in OpenStack Identity (keystone):
  Fix Released
Status in OpenStack Identity (keystone) newton series:
  Fix Committed
Status in OpenStack Identity (keystone) ocata series:
  Fix Committed
Status in OpenStack Security Advisory:
  Won't Fix
Status in OpenStack Security Notes:
  Fix Released

Bug description:
  identity:get_identity_providers should be
  identity:get_identity_provider (singular) since a GET is targeted on a
  single provider and the code is setup to check for
  identity:get_identity_provider (singular). See
  https://github.com/openstack/keystone/blob/c7e29560b7bf7a44e44722eea0645bf18ad56af3/keystone/federation/controllers.py#L112

  found in master (pike)

  The ocata default policy.json also has this problem. Unless someone
  manually overrode policy to specify identity:get_identity_provider
  (singular), the result would be that the default rule was actually
  used for that check instead of identity:get_identity_providers. We
  could go back and fix the default policy.json for past releases, but
  the default actually has the same value as
  identity:get_identity_providers, and if nobody has complained it's
  probably safer to just leave it. It is, after all, just defaults there
  and anyone can override by specifying the correct value.

  But we must fix in pike to go along with the shift of policy into
  code. Policy defaults in code definitely need to match up with what
  the code actually checks. There should no longer be any reliance on
  the default rule.

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