예제 #1
0
def enforce(context, action, target):
    """Verifies that the action is valid on the target in this context.

       :param context: monitor context
       :param action: string representing the action to be checked
           this should be colon separated for clarity.
           i.e. ``compute:create_instance``,
           ``compute:attach_servicemanage``,
           ``servicemanage:attach_servicemanage``

       :param object: dictionary representing the object of the action
           for object creation this should be a dictionary representing the
           location of the object e.g. ``{'project_id': context.project_id}``

       :raises monitor.exception.PolicyNotAuthorized: if verification fails.

    """
    init()

    match_list = ('rule:%s' % action,)
    credentials = context.to_dict()

    policy.enforce(match_list, target, credentials,
                   exception.PolicyNotAuthorized, action=action)
예제 #2
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def check_is_admin(roles):
    """Whether or not roles contains 'admin' role according to policy setting.

    """
    init()

    action = 'context_is_admin'
    match_list = ('rule:%s' % action,)
    # include project_id on target to avoid KeyError if context_is_admin
    # policy definition is missing, and default admin_or_owner rule
    # attempts to apply.  Since our credentials dict does not include a
    # project_id, this target can never match as a generic rule.
    target = {'project_id': ''}
    credentials = {'roles': roles}

    return policy.enforce(match_list, target, credentials)