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os-collect-config/os_collect_config/local.py

103 lines
3.6 KiB

# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
#
# 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 json
import locale
import os
import stat
from oslo_config import cfg
from oslo_log import log
from os_collect_config import exc
LOCAL_DEFAULT_PATHS = ['/var/lib/os-collect-config/local-data']
CONF = cfg.CONF
opts = [
cfg.MultiStrOpt('path',
default=LOCAL_DEFAULT_PATHS,
help='Local directory to scan for Metadata files.')
]
name = 'local'
logger = log.getLogger(__name__)
def _dest_looks_insecure(local_path):
'''We allow group writable so owner can let others write.'''
looks_insecure = False
uid = os.getuid()
st = os.stat(local_path)
if uid != st[stat.ST_UID]:
logger.error('%s is owned by another user. This is a'
' security risk.' % local_path)
looks_insecure = True
if st.st_mode & stat.S_IWOTH:
logger.error('%s is world writable. This is a security risk.'
% local_path)
looks_insecure = True
return looks_insecure
class Collector(object):
def __init__(self, requests_impl=None):
pass
def collect(self):
if len(cfg.CONF.local.path) == 0:
raise exc.LocalMetadataNotAvailable
final_content = []
for local_path in cfg.CONF.local.path:
try:
os.stat(local_path)
except OSError:
logger.warn("%s not found. Skipping", local_path)
continue
if _dest_looks_insecure(local_path):
raise exc.LocalMetadataNotAvailable
for data_file in os.listdir(local_path):
if data_file.startswith('.'):
continue
data_file = os.path.join(local_path, data_file)
if os.path.isdir(data_file):
continue
st = os.stat(data_file)
if st.st_mode & stat.S_IWOTH:
logger.error(
'%s is world writable. This is a security risk.' %
data_file)
raise exc.LocalMetadataNotAvailable
with open(data_file) as metadata:
try:
value = json.loads(metadata.read())
except ValueError as e:
logger.error(
'%s is not valid JSON (%s)' % (data_file, e))
raise exc.LocalMetadataNotAvailable
basename = os.path.basename(data_file)
final_content.append((basename, value))
if not final_content:
logger.info('No local metadata found (%s)' %
cfg.CONF.local.path)
# Now sort specifically by C locale
def locale_aware_by_first_item(data):
return locale.strxfrm(data[0])
save_locale = locale.getdefaultlocale()
locale.setlocale(locale.LC_ALL, 'C')
sorted_content = sorted(final_content, key=locale_aware_by_first_item)
locale.setlocale(locale.LC_ALL, save_locale)
return sorted_content