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# user management
#
# user setprimarygroup command
#
# Copyright Jelmer Vernooij 2010 <jelmer@samba.org>
# Copyright Theresa Halloran 2011 <theresahalloran@gmail.com>
#
# 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 samba.getopt as options
from samba import ldb
from samba.auth import system_session
from samba.dcerpc import security
from samba.ndr import ndr_unpack
from samba.netcmd import Command, CommandError, Option
from samba.samdb import SamDB
class cmd_user_setprimarygroup(Command):
"""Set the primary group a user account.
This command sets the primary group a user account. The username specified on
the command is the sAMAccountName. The primarygroupname is the sAMAccountName
of the new primary group. The user must be a member of the group.
The command may be run from the root userid or another authorized userid. The
-H or --URL= option can be used to execute the command against a remote server.
Example1:
samba-tool user setprimarygroup TestUser1 newPrimaryGroup --URL=ldap://samba.samdom.example.com -Uadministrator%passw1rd
Example1 shows how to set the primary group for TestUser1 on a remote LDAP
server. The --URL parameter is used to specify the remote target server. The
-U option is used to pass the username and password of a user that exists on
the remote server and is authorized to update the server.
"""
synopsis = "%prog <username> <primarygroupname> [options]"
takes_optiongroups = {
"sambaopts": options.SambaOptions,
"versionopts": options.VersionOptions,
"credopts": options.CredentialsOptions,
}
takes_options = [
Option("-H", "--URL", help="LDB URL for database or target server", type=str,
metavar="URL", dest="H"),
]
takes_args = ["username", "primarygroupname"]
def run(self, username, primarygroupname, credopts=None, sambaopts=None,
versionopts=None, H=None):
lp = sambaopts.get_loadparm()
creds = credopts.get_credentials(lp)
samdb = SamDB(url=H, session_info=system_session(),
credentials=creds, lp=lp)
filter = ("(&(sAMAccountName=%s)(objectClass=user))" %
ldb.binary_encode(username))
try:
res = samdb.search(base=samdb.domain_dn(),
expression=filter,
scope=ldb.SCOPE_SUBTREE,
controls=["extended_dn:1:1"],
attrs=["objectSid",
"memberOf",
"primaryGroupID"])
user_sid_binary = res[0].get('objectSid', idx=0)
user_sid = ndr_unpack(security.dom_sid, user_sid_binary)
(user_dom_sid, user_rid) = user_sid.split()
user_sid_dn = "<SID=%s>" % user_sid
user_pgid = int(res[0].get('primaryGroupID', idx=0))
user_groups = res[0].get('memberOf')
if user_groups is None:
user_groups = []
except IndexError:
raise CommandError("Unable to find user '%s'" % (username))
user_group_sids = []
for user_group in user_groups:
user_group_dn = ldb.Dn(samdb, str(user_group))
user_group_binary_sid = user_group_dn.get_extended_component("SID")
user_group_sid = ndr_unpack(security.dom_sid, user_group_binary_sid)
user_group_sids.append(user_group_sid)
filter = ("(&(sAMAccountName=%s)(objectClass=group))" %
ldb.binary_encode(primarygroupname))
try:
res = samdb.search(base=samdb.domain_dn(),
expression=filter,
scope=ldb.SCOPE_SUBTREE,
attrs=["objectSid"])
group_sid_binary = res[0].get('objectSid', idx=0)
except IndexError:
raise CommandError("Unable to find group '%s'" % (primarygroupname))
primarygroup_sid = ndr_unpack(security.dom_sid, group_sid_binary)
(primarygroup_dom_sid, primarygroup_rid) = primarygroup_sid.split()
if user_dom_sid != primarygroup_dom_sid:
raise CommandError("Group '%s' does not belong to the user's "
"domain" % primarygroupname)
if primarygroup_rid != user_pgid and primarygroup_sid not in user_group_sids:
raise CommandError("User '%s' is not member of group '%s'" %
(username, primarygroupname))
setprimarygroup_ldif = """
dn: %s
changetype: modify
delete: primaryGroupID
primaryGroupID: %u
add: primaryGroupID
primaryGroupID: %u
""" % (user_sid_dn, user_pgid, primarygroup_rid)
try:
samdb.modify_ldif(setprimarygroup_ldif)
except Exception as msg:
raise CommandError("Failed to set primary group '%s' "
"for user '%s': %s" %
(primarygroupname, username, msg))
self.outf.write("Changed primary group to '%s'\n" % primarygroupname)
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