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gpupdate/gpoa/backend/samba_backend.py

90 lines
3.3 KiB
Python

import logging
import os
# Facility to determine GPTs for user
from samba.gpclass import check_safe_path, check_refresh_gpo_list
from .applier_backend import applier_backend
from storage import cache_factory, registry_factory
from gpt import gpt, get_local_gpt
import util
import util.preg
class samba_backend(applier_backend):
__default_policy_path = '/usr/share/local-policy/default'
def __init__(self, sambacreds, username, domain):
self.storage = registry_factory('registry')
self.storage.set_info('domain', domain)
self.storage.set_info('machine_name', util.get_machine_name())
self.storage.set_info('machine_sid', util.get_sid(domain, self.storage.get_info('machine_name')))
# User SID to work with HKCU hive
self.username = username
self._is_machine_username = util.is_machine_name(self.username)
self.sid = util.get_sid(self.storage.get_info('domain'), self.username)
self.cache = cache_factory('regpol_cache')
self.gpo_names = cache_factory('gpo_names')
# Samba objects - LoadParm() and CredentialsOptions()
self.sambacreds = sambacreds
self.cache_dir = self.sambacreds.get_cache_dir()
logging.debug('Cache directory is: {}'.format(self.cache_dir))
def retrieve_and_store(self):
'''
Retrieve settings and strore it in a database
'''
# Get policies for machine at first.
machine_gpts = self._get_gpts(util.get_machine_name(), self.storage.get_info('machine_sid'))
self.storage.wipe_hklm()
self.storage.wipe_user(self.storage.get_info('machine_sid'))
for gptobj in machine_gpts:
gptobj.merge()
# Load user GPT values in case user's name specified
# This is a buggy implementation and should be tested more
if not self._is_machine_username:
user_gpts = self._get_gpts(self.username, self.sid)
self.storage.wipe_user(self.sid)
for gptobj in user_gpts:
gptobj.merge()
def _check_sysvol_present(self, gpo):
'''
Check if there is SYSVOL path for GPO assigned
'''
if not gpo.file_sys_path:
# GPO named "Local Policy" has no entry by its nature so
# no reason to print warning.
if 'Local Policy' != gpo.name:
logging.warning('No SYSVOL entry assigned to GPO {}'.format(gpo.name))
return False
return True
def _get_gpts(self, username, sid):
gpts = list()
gpos = self.sambacreds.update_gpos(username)
for gpo in gpos:
if self._check_sysvol_present(gpo):
logging.debug('Found SYSVOL entry "{}" for GPO "{}"'.format(gpo.file_sys_path, gpo.display_name))
path = check_safe_path(gpo.file_sys_path).upper()
logging.debug('Path: {}'.format(path))
gpt_abspath = os.path.join(self.cache_dir, 'gpo_cache', path)
obj = gpt(gpt_abspath, sid)
obj.set_name(gpo.display_name)
gpts.append(obj)
else:
if 'Local Policy' == gpo.name:
gpts.append(get_local_gpt(sid))
logging.debug('GPTs found:')
for gptobj in gpts:
logging.debug(gptobj)
logging.debug('---')
return gpts