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# Group Policy Client Side Extension Loader
# Copyright (C) David Mulder <dmulder@suse.com> 2018
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from samba.gp.gpclass import list_gp_extensions
from samba.gp.gpclass import gp_ext
from samba.gp.util.logging import log
try:
import importlib.util
def import_file(name, location):
spec = importlib.util.spec_from_file_location(name, location)
module = importlib.util.module_from_spec(spec)
spec.loader.exec_module(module)
return module
except ImportError:
import imp
def import_file(name, location):
return imp.load_source(name, location)
def get_gp_ext_from_module(name, mod):
if mod:
for k, v in vars(mod).items():
if k == name and issubclass(v, gp_ext):
return v
return None
def get_gp_client_side_extensions(smb_conf):
user_exts = []
machine_exts = []
gp_exts = list_gp_extensions(smb_conf)
for gp_extension in gp_exts.values():
module = import_file(gp_extension['ProcessGroupPolicy'], gp_extension['DllName'])
ext = get_gp_ext_from_module(gp_extension['ProcessGroupPolicy'], module)
if ext and gp_extension['MachinePolicy']:
machine_exts.append(ext)
log.info('Loaded machine extension from %s: %s'
% (gp_extension['DllName'], ext.__name__))
if ext and gp_extension['UserPolicy']:
user_exts.append(ext)
log.info('Loaded user extension from %s: %s'
% (gp_extension['DllName'], ext.__name__))
return (machine_exts, user_exts)
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