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# alias.py - lookup functions for email aliases
#
# Copyright (C) 2010-2019 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',
rfc822MailMember='rfc822MailMember')
filter = '(objectClass=nisMailAlias)'
class Search(search.LDAPSearch):
case_insensitive = ('cn', )
limit_attributes = ('cn', )
required = ('cn', 'rfc822MailMember')
class Cache(cache.Cache):
tables = ('alias_cache', 'alias_member_cache')
create_sql = '''
CREATE TABLE IF NOT EXISTS `alias_cache`
( `cn` TEXT PRIMARY KEY COLLATE NOCASE,
`mtime` TIMESTAMP NOT NULL );
CREATE TABLE IF NOT EXISTS `alias_member_cache`
( `alias` TEXT NOT NULL COLLATE NOCASE,
`rfc822MailMember` TEXT NOT NULL,
FOREIGN KEY(`alias`) REFERENCES `alias_cache`(`cn`)
ON DELETE CASCADE ON UPDATE CASCADE );
CREATE INDEX IF NOT EXISTS `alias_member_idx` ON `alias_member_cache`(`alias`);
'''
retrieve_sql = '''
SELECT `alias_cache`.`cn` AS `cn`,
`alias_member_cache`.`rfc822MailMember` AS `rfc822MailMember`,
`alias_cache`.`mtime` AS `mtime`
FROM `alias_cache`
LEFT JOIN `alias_member_cache`
ON `alias_member_cache`.`alias` = `alias_cache`.`cn`
'''
retrieve_by = dict(
rfc822MailMember='''
`cn` IN (
SELECT `a`.`alias`
FROM `alias_member_cache` `a`
WHERE `a`.`rfc822MailMember` = ?)
''',
)
group_by = (0, ) # cn
group_columns = (1, ) # rfc822MailMember
class AliasRequest(common.Request):
def write(self, name, members):
self.fp.write_string(name)
self.fp.write_stringlist(members)
def convert(self, dn, attributes, parameters):
names = attributes['cn']
members = attributes['rfc822MailMember']
for name in names:
yield (name, members)
class AliasByNameRequest(AliasRequest):
action = constants.NSLCD_ACTION_ALIAS_BYNAME
def read_parameters(self, fp):
return dict(cn=fp.read_string())
class AliasAllRequest(AliasRequest):
action = constants.NSLCD_ACTION_ALIAS_ALL
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