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# network.py - lookup functions for network names and addresses
#
# 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 cache
import common
import constants
import search
attmap = common.Attributes(
cn='cn',
ipNetworkNumber='ipNetworkNumber')
filter = '(objectClass=ipNetwork)'
class Search(search.LDAPSearch):
canonical_first = ('cn', )
required = ('cn', )
class Cache(cache.Cache):
tables = ('network_cache', 'network_alias_cache', 'network_address_cache')
create_sql = '''
CREATE TABLE IF NOT EXISTS `network_cache`
( `cn` TEXT PRIMARY KEY COLLATE NOCASE,
`mtime` TIMESTAMP NOT NULL );
CREATE TABLE IF NOT EXISTS `network_alias_cache`
( `network` TEXT NOT NULL COLLATE NOCASE,
`cn` TEXT NOT NULL COLLATE NOCASE,
FOREIGN KEY(`network`) REFERENCES `network_cache`(`cn`)
ON DELETE CASCADE ON UPDATE CASCADE );
CREATE INDEX IF NOT EXISTS `network_alias_idx` ON `network_alias_cache`(`network`);
CREATE TABLE IF NOT EXISTS `network_address_cache`
( `network` TEXT NOT NULL COLLATE NOCASE,
`ipNetworkNumber` TEXT NOT NULL,
FOREIGN KEY(`network`) REFERENCES `network_cache`(`cn`)
ON DELETE CASCADE ON UPDATE CASCADE );
CREATE INDEX IF NOT EXISTS `network_address_idx` ON `network_address_cache`(`network`);
'''
retrieve_sql = '''
SELECT `network_cache`.`cn` AS `cn`,
`network_alias_cache`.`cn` AS `alias`,
`network_address_cache`.`ipNetworkNumber` AS `ipNetworkNumber`,
`network_cache`.`mtime` AS `mtime`
FROM `network_cache`
LEFT JOIN `network_alias_cache`
ON `network_alias_cache`.`network` = `network_cache`.`cn`
LEFT JOIN `network_address_cache`
ON `network_address_cache`.`network` = `network_cache`.`cn`
'''
retrieve_by = dict(
cn='''
( `network_cache`.`cn` = ? OR
`network_cache`.`cn` IN (
SELECT `by_alias`.`network`
FROM `network_alias_cache` `by_alias`
WHERE `by_alias`.`cn` = ?))
''',
ipNetworkNumber='''
`network_cache`.`cn` IN (
SELECT `by_ipNetworkNumber`.`network`
FROM `network_address_cache` `by_ipNetworkNumber`
WHERE `by_ipNetworkNumber`.`ipNetworkNumber` = ?)
''',
)
group_by = (0, ) # cn
group_columns = (1, 2) # alias, ipNetworkNumber
class NetworkRequest(common.Request):
def write(self, networkname, aliases, addresses):
self.fp.write_string(networkname)
self.fp.write_stringlist(aliases)
self.fp.write_int32(len(addresses))
for address in addresses:
self.fp.write_address(address)
def convert(self, dn, attributes, parameters):
netnames = attributes['cn']
yield (netnames[0], netnames[1:], attributes['ipNetworkNumber'])
class NetworkByNameRequest(NetworkRequest):
action = constants.NSLCD_ACTION_NETWORK_BYNAME
def read_parameters(self, fp):
return dict(cn=fp.read_string())
class NetworkByAddressRequest(NetworkRequest):
action = constants.NSLCD_ACTION_NETWORK_BYADDR
def read_parameters(self, fp):
return dict(ipNetworkNumber=fp.read_address())
class NetworkAllRequest(NetworkRequest):
action = constants.NSLCD_ACTION_NETWORK_ALL
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