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Edit File: 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.gp.gpclass import gp_pol_ext from base64 import b64encode from tempfile import NamedTemporaryFile from subprocess import Popen, PIPE from samba.gp.util.logging import log 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: log.error('Sudoers apply 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