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# vgp_issue_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_xml_ext, gp_misc_applier
class vgp_issue_ext(gp_xml_ext, gp_misc_applier):
def unapply(self, guid, issue, attribute, value):
if attribute != 'issue':
raise ValueError('"%s" is not a message attribute' % attribute)
msg = value
data = self.parse_value(value)
if os.path.exists(issue):
with open(issue, 'r') as f:
current = f.read()
else:
current = ''
# Only overwrite the msg if it hasn't been modified. It may have been
# modified by another GPO.
if 'new_val' not in data or current.strip() == data['new_val'].strip():
msg = data['old_val']
with open(issue, 'w') as w:
if msg:
w.write(msg)
else:
w.truncate()
self.cache_remove_attribute(guid, attribute)
def apply(self, guid, issue, text):
if os.path.exists(issue):
with open(issue, 'r') as f:
current = f.read()
else:
current = ''
if current != text.text:
with open(issue, 'w') as w:
w.write(text.text)
data = self.generate_value(old_val=current, new_val=text.text)
self.cache_add_attribute(guid, 'issue', data)
def __str__(self):
return 'Unix Settings/Issue'
def process_group_policy(self, deleted_gpo_list, changed_gpo_list,
issue='/etc/issue'):
for guid, settings in deleted_gpo_list:
if str(self) in settings:
for attribute, msg in settings[str(self)].items():
self.unapply(guid, issue, attribute, msg)
for gpo in changed_gpo_list:
if gpo.file_sys_path:
xml = 'MACHINE/VGP/VTLA/Unix/Issue/manifest.xml'
path = os.path.join(gpo.file_sys_path, xml)
xml_conf = self.parse(path)
if not xml_conf:
continue
policy = xml_conf.find('policysetting')
data = policy.find('data')
text = data.find('text')
self.apply(gpo.name, issue, text)
def rsop(self, gpo):
output = {}
if gpo.file_sys_path:
xml = 'MACHINE/VGP/VTLA/Unix/Issue/manifest.xml'
path = os.path.join(gpo.file_sys_path, xml)
xml_conf = self.parse(path)
if not xml_conf:
return output
policy = xml_conf.find('policysetting')
data = policy.find('data')
filename = data.find('filename')
text = data.find('text')
mfile = os.path.join('/etc', filename.text)
output[mfile] = text.text
return output
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