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# Copyright 2013 IBM Corp.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
import hashlib
import uuid
from debtcollector import removals
from oslo_config import cfg
CONF = cfg.CONF
opts = [
cfg.StrOpt('namespace',
default='openstack',
help='namespace prefix for generated id'),
]
CONF.register_opts(opts, group='audit')
AUDIT_NS = None
if CONF.audit.namespace:
md5_hash = hashlib.md5(CONF.audit.namespace.encode('utf-8'))
AUDIT_NS = uuid.UUID(md5_hash.hexdigest())
def generate_uuid():
"""Generate a CADF identifier
"""
if AUDIT_NS:
return str(uuid.uuid5(AUDIT_NS, str(uuid.uuid4())))
return str(uuid.uuid4())
@removals.remove
def norm_ns(str_id):
"""Apply a namespace to the identifier """
prefix = CONF.audit.namespace + ':' if CONF.audit.namespace else ''
return prefix + str_id
def is_valid(value):
"""Validation to ensure Identifier is correct.
"""
if value in ['target', 'initiator', 'observer']:
return True
try:
uuid.UUID(value)
except ValueError:
return False
else:
return True
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