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# group.py - group entry lookup routines
#
# Copyright (C) 2010, 2011 Arthur de Jong
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301 USA
import logging
import ldap.filter
import constants
import common
from passwd import dn2uid, uid2dn
def clean(lst):
if lst:
for i in lst:
yield i.replace('\0', '')
attmap = common.Attributes(cn='cn',
userPassword='"*"',
gidNumber='gidNumber',
memberUid='memberUid',
uniqueMember='uniqueMember')
filter = '(|(objectClass=posixGroup)(objectClass=groupOfUniqueNames))'
class GroupRequest(common.Request):
wantmembers = True
def write(self, dn, attributes):
# get group names and check against requested group name
names = attributes['cn']
if self.name:
if self.name not in names:
return
names = ( self.name, )
# get group group password
passwd = attributes['userPassword'][0]
# get group id(s)
gids = ( self.gid, ) if self.gid else attributes['gidNumber']
gids = [ int(x) for x in gids ]
# build member list
members = set()
if self.wantmembers:
# add the memberUid values
for member in clean(attributes['memberUid']):
if common.isvalidname(member):
members.add(member)
# translate and add the uniqueMember values
for memberdn in clean(attributes['uniqueMember']):
member = dn2uid(self.conn, memberdn)
if member and common.isvalidname(member):
members.add(member)
# actually return the results
for name in names:
if not common.isvalidname(name):
print 'Warning: group entry %s contains invalid group name: "%s"' % ( dn, name )
else:
for gid in gids:
self.fp.write_int32(constants.NSLCD_RESULT_BEGIN)
self.fp.write_string(name)
self.fp.write_string(passwd)
self.fp.write_gid_t(gid)
self.fp.write_stringlist(members)
class GroupByNameRequest(GroupRequest):
action = constants.NSLCD_ACTION_GROUP_BYNAME
filter_attrs = dict(cn='name')
def read_parameters(self):
self.name = self.fp.read_string()
common.validate_name(self.name)
class GroupByGidRequest(GroupRequest):
action = constants.NSLCD_ACTION_GROUP_BYGID
filter_attrs = dict(gidNumber='gid')
def read_parameters(self):
self.gid = self.fp.read_gid_t()
class GroupByMemberRequest(GroupRequest):
action = constants.NSLCD_ACTION_GROUP_BYMEMBER
wantmembers = False
def __init__(self, *args, **kwargs):
super(GroupByMemberRequest, self).__init__(*args, **kwargs)
# set up our own attributes that leave out membership attributes
self.attmap = common.Attributes(attmap)
del self.attmap['memberUid']
del self.attmap['uniqueMember']
def read_parameters(self):
self.memberuid = self.fp.read_string()
common.validate_name(self.memberuid)
def attributes(self):
return self.attmap.attributes()
def mk_filter(self):
if attmap['uniqueMember']:
dn = uid2dn(self.conn, self.memberuid)
if dn:
return '(&%s(|(%s=%s)(%s=%s)))' % ( self.filter,
attmap['memberUid'], ldap.filter.escape_filter_chars(self.memberuid),
attmap['uniqueMember'], ldap.filter.escape_filter_chars(dn) )
return '(&%s(%s=%s))' % ( self.filter,
attmap['memberUid'], ldap.filter.escape_filter_chars(self.memberuid) )
class GroupAllRequest(GroupRequest):
action = constants.NSLCD_ACTION_GROUP_ALL
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