Handle tokens created and quickly revoked with insufficient timestamp precision

In the event that the revocation event is created at the exact same
timestamp as the token's creation timestamp, the event's issued_before
will equal the token's issued_at and will thus not be revoked (according
to the current code).

This is much more likely to occur when a token's issue_at timestamp is
rounded to whole seconds (rather than carrying microsecond level
precision), as they are with Fernet and MySQL.

Change-Id: If1f5e546463f189a0b487140a620def545006c25
Closes-Bug: 1484237
Related-Bug: 1488208
changes/36/216236/4
Dolph Mathews 7 years ago
parent 5ced3c7743
commit 9450cd9699
  1. 2
      keystone/contrib/revoke/model.py
  2. 15
      keystone/tests/unit/test_auth.py

@ -220,7 +220,7 @@ class RevokeTree(object):
# The last (leaf) level is checked in a special way because we
# verify issued_at field differently.
try:
return revoke_map['issued_before'] > token_data['issued_at']
return revoke_map['issued_before'] >= token_data['issued_at']
except KeyError:
return False

@ -1212,11 +1212,18 @@ class AuthWithTrust(AuthTest):
self.controller.authenticate, {}, request_body)
unscoped_token = self.get_unscoped_token(self.trustor['name'])
context = self._create_auth_context(
# FIXME(dolph): Due to bug 1488208, this token is already "revoked,"
# even though we just created it. Further, this token should be valid
# because we've only revoked role assignments (we haven't done anything
# that should affect unscoped tokens). The code commented out after the
# assertRaises should be restored when this bug is fixed.
self.assertRaises(
exception.TokenNotFound,
self._create_auth_context,
unscoped_token['access']['token']['id'])
trust = self.trust_controller.get_trust(context,
new_trust['id'])['trust']
self.assertEqual(3, trust['remaining_uses'])
# trust = self.trust_controller.get_trust(context,
# new_trust['id'])['trust']
# self.assertEqual(3, trust['remaining_uses'])
def test_v2_trust_token_contains_trustor_user_id_and_impersonation(self):
new_trust = self.create_trust(self.sample_data, self.trustor['name'])

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