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# Unix SMB/CIFS implementation.
#
# Computer model.
#
# Copyright (C) Catalyst.Net Ltd. 2023
#
# Written by Rob van der Linde <rob@catalyst.net.nz>
#
# 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/>.
#
from ldb import Dn
from samba.dsdb import DS_GUID_COMPUTERS_CONTAINER
from .user import User
class Computer(User):
"""A Computer is a type of User."""
def __init__(self, **kwargs):
"""Computer constructor automatically adds "$" to account_name.
The various ways a Computer can be constructed:
>>> Computer(name="pc")
>>> Computer(account_name="pc$")
>>> Computer(cn="pc")
>>> Computer(account_name="pc$", name="pc")
In each case the constructor does its best to ensure the
account name ends with a "$" and the name doesn't.
Also applies to GroupManagedServiceAccount subclass."""
name = kwargs.get("name", kwargs.pop("cn", None))
account_name = kwargs.get("account_name")
# First make sure the account_name always has a "$".
if account_name and not account_name.endswith("$"):
account_name += "$"
# The name is present but not account name.
# If the name already has a "$" don't add two.
if name and not account_name:
if name.endswith("$"):
account_name = name
else:
account_name = name + "$"
# The account name is present but not the name.
# Use the account name, stripping the "$" character.
elif account_name and not name:
name = account_name.rstrip("$")
kwargs["name"] = name
kwargs["account_name"] = account_name
super().__init__(**kwargs)
@staticmethod
def get_base_dn(samdb):
"""Return base Dn for Computers.
:param samdb: SamDB connection
:return: Dn to use for searching
"""
return samdb.get_wellknown_dn(samdb.get_default_basedn(),
DS_GUID_COMPUTERS_CONTAINER)
@staticmethod
def get_object_class():
return "computer"
@classmethod
def find(cls, samdb, name):
"""Helper function to find a computer, first by Dn then sAMAccountName.
If the Dn can't be parsed use sAMAccountName, automatically add the $.
"""
try:
query = {"dn": Dn(samdb, name)}
except ValueError:
if name.endswith("$"):
query = {"account_name": name}
else:
query = {"account_name": name + "$"}
return cls.get(samdb, **query)
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