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# netgroup.py - lookup functions for netgroups
#
# Copyright (C) 2011-2019 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 re
import cache
import common
import constants
import search
_netgroup_triple_re = re.compile(
r'^\s*\(\s*(?P<host>.*)\s*,\s*(?P<user>.*)\s*,\s*(?P<domain>.*)\s*\)\s*$')
attmap = common.Attributes(
cn='cn',
nisNetgroupTriple='nisNetgroupTriple',
memberNisNetgroup='memberNisNetgroup')
filter = '(objectClass=nisNetgroup)'
class Search(search.LDAPSearch):
case_sensitive = ('cn', )
required = ('cn', )
class Cache(cache.Cache):
tables = ('netgroup_cache', 'netgroup_triple_cache', 'netgroup_member_cache')
create_sql = '''
CREATE TABLE IF NOT EXISTS `netgroup_cache`
( `cn` TEXT PRIMARY KEY COLLATE NOCASE,
`mtime` TIMESTAMP NOT NULL );
CREATE TABLE IF NOT EXISTS `netgroup_triple_cache`
( `netgroup` TEXT NOT NULL COLLATE NOCASE,
`nisNetgroupTriple` TEXT NOT NULL COLLATE NOCASE,
FOREIGN KEY(`netgroup`) REFERENCES `netgroup_cache`(`cn`)
ON DELETE CASCADE ON UPDATE CASCADE );
CREATE INDEX IF NOT EXISTS `netgroup_triple_idx` ON `netgroup_triple_cache`(`netgroup`);
CREATE TABLE IF NOT EXISTS `netgroup_member_cache`
( `netgroup` TEXT NOT NULL COLLATE NOCASE,
`memberNisNetgroup` TEXT NOT NULL,
FOREIGN KEY(`netgroup`) REFERENCES `netgroup_cache`(`cn`)
ON DELETE CASCADE ON UPDATE CASCADE );
CREATE INDEX IF NOT EXISTS `netgroup_membe_idx` ON `netgroup_member_cache`(`netgroup`);
'''
retrieve_sql = '''
SELECT `netgroup_cache`.`cn` AS `cn`,
`netgroup_triple_cache`.`nisNetgroupTriple` AS `nisNetgroupTriple`,
`netgroup_member_cache`.`memberNisNetgroup` AS `memberNisNetgroup`,
`netgroup_cache`.`mtime` AS `mtime`
FROM `netgroup_cache`
LEFT JOIN `netgroup_triple_cache`
ON `netgroup_triple_cache`.`netgroup` = `netgroup_cache`.`cn`
LEFT JOIN `netgroup_member_cache`
ON `netgroup_member_cache`.`netgroup` = `netgroup_cache`.`cn`
'''
group_by = (0, ) # cn
group_columns = (1, 2) # nisNetgroupTriple, memberNisNetgroup
class NetgroupRequest(common.Request):
def write(self, name, triples, members):
self.fp.write_string(name)
for triple in triples:
m = _netgroup_triple_re.match(triple)
if m:
self.fp.write_int32(constants.NSLCD_NETGROUP_TYPE_TRIPLE)
self.fp.write_string(m.group('host'))
self.fp.write_string(m.group('user'))
self.fp.write_string(m.group('domain'))
for member in members:
self.fp.write_int32(constants.NSLCD_NETGROUP_TYPE_NETGROUP)
self.fp.write_string(member)
self.fp.write_int32(constants.NSLCD_NETGROUP_TYPE_END)
def convert(self, dn, attributes, parameters):
names = attributes['cn']
triples = attributes['nisNetgroupTriple']
members = attributes['memberNisNetgroup']
for name in names:
yield (name, triples, members)
class NetgroupByNameRequest(NetgroupRequest):
action = constants.NSLCD_ACTION_NETGROUP_BYNAME
def read_parameters(self, fp):
return dict(cn=fp.read_string())
class NetgroupAllRequest(NetgroupRequest):
action = constants.NSLCD_ACTION_NETGROUP_ALL
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