python/samba/gp_msgs_ext.py

   1 # gp_msgs_ext samba gpo policy
   2 # Copyright (C) David Mulder <dmulder@suse.com> 2020
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 import os
  18 from samba.gpclass import gp_pol_ext
  19
  20 class gp_msgs_ext(gp_pol_ext):
  21     def __str__(self):
  22         return 'Unix Settings/Messages'
  23
  24     def process_group_policy(self, deleted_gpo_list, changed_gpo_list,
  25                              cdir='/etc'):
  26         for guid, settings in deleted_gpo_list:
  27             self.gp_db.set_guid(guid)
  28             if str(self) in settings:
  29                 for attribute, msg in settings[str(self)].items():
  30                     if attribute == 'motd':
  31                         mfile = os.path.join(cdir, 'motd')
  32                     elif attribute == 'issue':
  33                         mfile = os.path.join(cdir, 'issue')
  34                     else:
  35                         continue
  36                     with open(mfile, 'w') as w:
  37                         if msg:
  38                             w.write(msg)
  39                         else:
  40                             w.truncate()
  41                     self.gp_db.delete(str(self), attribute)
  42             self.gp_db.commit()
  43
  44         for gpo in changed_gpo_list:
  45             if gpo.file_sys_path:
  46                 section_name = 'Software\\Policies\\Samba\\Unix Settings\\Messages'
  47                 self.gp_db.set_guid(gpo.name)
  48                 pol_file = 'MACHINE/Registry.pol'
  49                 path = os.path.join(gpo.file_sys_path, pol_file)
  50                 pol_conf = self.parse(path)
  51                 if not pol_conf:
  52                     continue
  53                 for e in pol_conf.entries:
  54                     if e.keyname == section_name and e.data.strip():
  55                         if e.valuename == 'motd':
  56                             mfile = os.path.join(cdir, 'motd')
  57                         elif e.valuename == 'issue':
  58                             mfile = os.path.join(cdir, 'issue')
  59                         else:
  60                             continue
  61                         if os.path.exists(mfile):
  62                             old_val = open(mfile, 'r').read()
  63                         else:
  64                             old_val = ''
  65                         with open(mfile, 'w') as w:
  66                             w.write(e.data)
  67                             self.gp_db.store(str(self), e.valuename, old_val)
  68                         self.gp_db.commit()