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# Authors:
# Alexander Bokovoy <abokovoy@redhat.com>
#
# Copyright (C) 2014 Red Hat
# see file 'COPYING' for use and warranty information
#
# 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/>.
from ipaserver.install.plugins import MIDDLE
from ipaserver.install.plugins.baseupdate import PostUpdate
from ipalib import api, errors
from ipapython.dn import DN
from ipapython.ipa_log_manager import *
class update_uid_uniqueness(PostUpdate):
"""
Create plugin configuration to ensure uid uniqueness
"""
order = MIDDLE
uid_uniqueness_dn = DN(('cn', 'uid uniqueness'), ('cn', 'plugins'), ('cn', 'config'))
uid_uniqueness_template = {
'objectClass' : ["top", "nsSlapdPlugin", "extensibleObject"],
'cn' : 'uid uniqueness',
'nsslapd-pluginPath' : 'libattr-unique-plugin',
'nsslapd-pluginInitfunc' : 'NSUniqueAttr_Init',
'nsslapd-pluginType' : 'betxnpreoperation',
'nsslapd-pluginEnabled' : 'on',
'uniqueness-attribute-name' : 'uid',
'uniqueness-subtrees' : 'dc=example,dc=com',
'uniqueness-across-all-subtrees': 'off',
'uniqueness-subtree-entries-oc' : 'posixAccount',
'nsslapd-plugin-depends-on-type': 'database',
'nsslapd-pluginId' : 'none',
'nsslapd-pluginVersion' : 'none',
'nsslapd-pluginVendor' : 'none',
'nsslapd-pluginDescription' : 'none',
}
def execute(self, **options):
ldap = self.obj.backend
config_dn = DN(('cn','config'))
search_filter = ("(&(objectclass=nsslapdplugin)"
"(nsslapd-pluginpath=libattr-unique-plugin)"
"(nsslapd-pluginInitfunc=NSUniqueAttr_Init)"
"(!(nsslapd-pluginenabled=off))"
"(|(uniqueness-attribute-name=uid)(nsslapd-plugarg0=uid)))")
root_logger.debug("update_uid_uniqueness: search for existing uid uniqueness "
"configuration")
try:
(entries, truncated) = ldap.find_entries(search_filter, ['*'], config_dn,
time_limit=0, size_limit=0)
except errors.NotFound:
# add entry
entries = []
except errors.ExecutionError, e:
root_logger.error("update_uid_uniqueness: cannot retrieve "
"list of uniqueness plugin instances: %s", e)
return (False, False, [])
if len(entries) > 1:
root_logger.error("update_uid_uniqueness: found more than one uid "
"uniqueness plugin definition: %s", [str(x.dn) for x in entries])
return (False, False, [])
error = False
if not entries:
root_logger.debug("update_uid_uniqueness: adding new uid uniqueness "
"plugin definition")
uid_uniqueness_plugin_attrs = dict(self.uid_uniqueness_template)
uid_uniqueness_plugin_attrs['uniqueness-subtrees'] = api.env.basedn
uid_uniqueness_plugin = ldap.make_entry(self.uid_uniqueness_dn, uid_uniqueness_plugin_attrs)
try:
ldap.add_entry(uid_uniqueness_plugin)
except errors.ExecutionError, e:
root_logger.debug("update_uid_uniqueness: cannot "
"create uid uniqueness plugin entry: %s", e)
error = True
else:
root_logger.debug("update_uid_uniqueness: updating existing uid uniqueness "
"plugin definition")
uid_uniqueness_plugin_attrs = dict(self.uid_uniqueness_template)
uid_uniqueness_plugin_attrs['uniqueness-subtrees'] = api.env.basedn
uid_uniqueness_plugin_attrs['cn'] = entries[0]['cn']
uid_uniqueness_plugin = ldap.make_entry(entries[0].dn, uid_uniqueness_plugin_attrs)
try:
ldap.update_entry(uid_uniqueness_plugin)
except errors.ExecutionError, e:
root_logger.debug("update_uid_uniqueness: cannot "
"update uid uniqueness plugin entry: %s", e)
error = True
if error:
root_logger.error("update_uid_uniqueness: error(s)"
"detected during plugin update")
return (True, False, [])
api.register(update_uid_uniqueness)
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