Current File : //lib/python3/dist-packages/samba/gp_sudoers_ext.py
# gp_sudoers_ext samba gpo policy
# Copyright (C) David Mulder <dmulder@suse.com> 2020
#
# 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/>.
import os
from samba.gpclass import gp_pol_ext
from base64 import b64encode
from tempfile import NamedTemporaryFile
from subprocess import Popen, PIPE
def find_executable(executable, path):
paths = path.split(os.pathsep)
for p in paths:
f = os.path.join(p, executable)
if os.path.isfile(f):
return f
return None
intro = '''
### autogenerated by samba
#
# This file is generated by the gp_sudoers_ext Group Policy
# Client Side Extension. To modify the contents of this file,
# modify the appropriate Group Policy objects which apply
# to this machine. DO NOT MODIFY THIS FILE DIRECTLY.
#
'''
visudo = find_executable('visudo',
path='%s:%s' % (os.environ['PATH'], '/usr/sbin'))
class gp_sudoers_ext(gp_pol_ext):
def __str__(self):
return 'Unix Settings/Sudo Rights'
def process_group_policy(self, deleted_gpo_list, changed_gpo_list,
sdir='/etc/sudoers.d'):
for guid, settings in deleted_gpo_list:
self.gp_db.set_guid(guid)
if str(self) in settings:
for attribute, sudoers in settings[str(self)].items():
if os.path.exists(sudoers):
os.unlink(sudoers)
self.gp_db.delete(str(self), attribute)
self.gp_db.commit()
for gpo in changed_gpo_list:
if gpo.file_sys_path:
section = 'Software\\Policies\\Samba\\Unix Settings\\Sudo Rights'
self.gp_db.set_guid(gpo.name)
pol_file = 'MACHINE/Registry.pol'
path = os.path.join(gpo.file_sys_path, pol_file)
pol_conf = self.parse(path)
if not pol_conf:
continue
for e in pol_conf.entries:
if e.keyname == section and e.data.strip():
attribute = b64encode(e.data.encode()).decode()
old_val = self.gp_db.retrieve(str(self), attribute)
if not old_val:
contents = intro
contents += '%s\n' % e.data
with NamedTemporaryFile() as f:
with open(f.name, 'w') as w:
w.write(contents)
sudo_validation = \
Popen([visudo, '-c', '-f', f.name],
stdout=PIPE, stderr=PIPE).wait()
if sudo_validation == 0:
with NamedTemporaryFile(prefix='gp_',
delete=False,
dir=sdir) as f:
with open(f.name, 'w') as w:
w.write(contents)
self.gp_db.store(str(self),
attribute,
f.name)
else:
self.logger.warn('Sudoers apply "%s" failed'
% e.data)
self.gp_db.commit()
def rsop(self, gpo):
output = {}
pol_file = 'MACHINE/Registry.pol'
if gpo.file_sys_path:
path = os.path.join(gpo.file_sys_path, pol_file)
pol_conf = self.parse(path)
if not pol_conf:
return output
for e in pol_conf.entries:
key = e.keyname.split('\\')[-1]
if key.endswith('Sudo Rights') and e.data.strip():
if key not in output.keys():
output[key] = []
output[key].append(e.data)
return output
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