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8a24829093
Signed-off-by: David Mulder <dmulder@samba.org> Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
92 lines
3.9 KiB
Python
92 lines
3.9 KiB
Python
# gp_msgs_ext samba gpo policy
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# Copyright (C) David Mulder <dmulder@suse.com> 2020
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import os
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from samba.gp.gpclass import gp_pol_ext, gp_misc_applier
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class gp_msgs_ext(gp_pol_ext, gp_misc_applier):
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def unapply(self, guid, cdir, attribute, value):
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if attribute not in ['motd', 'issue']:
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raise ValueError('"%s" is not a message attribute' % attribute)
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data = self.parse_value(value)
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mfile = os.path.join(cdir, attribute)
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current = open(mfile, 'r').read() if os.path.exists(mfile) else ''
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# Only overwrite the msg if it hasn't been modified. It may have been
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# modified by another GPO.
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if 'new_val' not in data or current.strip() == data['new_val'].strip():
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msg = data['old_val']
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with open(mfile, 'w') as w:
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if msg:
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w.write(msg)
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else:
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w.truncate()
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self.cache_remove_attribute(guid, attribute)
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def apply(self, guid, cdir, entries):
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section_name = 'Software\\Policies\\Samba\\Unix Settings\\Messages'
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for e in entries:
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if e.keyname == section_name and e.data.strip():
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if e.valuename not in ['motd', 'issue']:
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raise ValueError('"%s" is not a message attribute' % \
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e.valuename)
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mfile = os.path.join(cdir, e.valuename)
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if os.path.exists(mfile):
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old_val = open(mfile, 'r').read()
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else:
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old_val = ''
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# If policy is already applied, skip application
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if old_val.strip() == e.data.strip():
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return
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with open(mfile, 'w') as w:
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w.write(e.data)
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data = self.generate_value(old_val=old_val, new_val=e.data)
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self.cache_add_attribute(guid, e.valuename, data)
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def __str__(self):
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return 'Unix Settings/Messages'
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def process_group_policy(self, deleted_gpo_list, changed_gpo_list,
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cdir='/etc'):
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for guid, settings in deleted_gpo_list:
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if str(self) in settings:
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for attribute, msg in settings[str(self)].items():
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self.unapply(guid, cdir, attribute, msg)
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for gpo in changed_gpo_list:
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if gpo.file_sys_path:
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section_name = 'Software\\Policies\\Samba\\Unix Settings\\Messages'
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pol_file = 'MACHINE/Registry.pol'
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path = os.path.join(gpo.file_sys_path, pol_file)
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pol_conf = self.parse(path)
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if not pol_conf:
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continue
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self.apply(gpo.name, cdir, pol_conf.entries)
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def rsop(self, gpo):
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output = {}
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if gpo.file_sys_path:
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section_name = 'Software\\Policies\\Samba\\Unix Settings\\Messages'
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pol_file = 'MACHINE/Registry.pol'
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path = os.path.join(gpo.file_sys_path, pol_file)
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pol_conf = self.parse(path)
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if not pol_conf:
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return output
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for e in pol_conf.entries:
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if e.keyname == section_name and e.data.strip():
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mfile = os.path.join('/etc', e.valuename)
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output[mfile] = e.data
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return output
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