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# Authors:
# Martin Kosek <mkosek@redhat.com>
#
# Copyright (C) 2012 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_service_principalalias(PostUpdate):
"""
Update all services which do not have ipakrbprincipalalias attribute
used for case-insensitive principal searches filled. This applies for
all services created prior IPA 3.0.
"""
order = MIDDLE
def execute(self, **options):
ldap = self.obj.backend
base_dn = DN(api.env.container_service, api.env.basedn)
search_filter = ("(&(objectclass=krbprincipal)(objectclass=ipaservice)"
"(!(objectclass=ipakrbprincipal)))")
root_logger.debug("update_service_principalalias: search for affected "
"services")
while True:
# run the search in loop to avoid issues when LDAP limits are hit
# during update
try:
(entries, truncated) = ldap.find_entries(search_filter,
['objectclass', 'krbprincipalname'], base_dn,
time_limit=0, size_limit=0)
except errors.NotFound:
root_logger.debug("update_service_principalalias: no service "
"to update found")
return (False, False, [])
except errors.ExecutionError, e:
root_logger.error("update_service_principalalias: cannot "
"retrieve list of affected services: %s", e)
return (False, False, [])
if not entries:
# no entry was returned, rather break than continue cycling
root_logger.debug("update_service_principalalias: no service "
"was returned")
return (False, False, [])
root_logger.debug("update_service_principalalias: found %d "
"services to update, truncated: %s",
len(entries), truncated)
error = False
for dn, entry in entries:
update = {}
update['objectclass'] = (entry['objectclass'] +
['ipakrbprincipal'])
update['ipakrbprincipalalias'] = entry['krbprincipalname']
try:
ldap.update_entry(dn, update)
except (errors.EmptyModlist, errors.NotFound):
pass
except errors.ExecutionError, e:
root_logger.debug("update_service_principalalias: cannot "
"update service: %s", e)
error = True
if error:
# exit loop to avoid infinite cycles
root_logger.error("update_service_principalalias: error(s)"
"detected during service update")
return (False, False, [])
elif not truncated:
# all affected entries updated, exit the loop
root_logger.debug("update_service_principalalias: all affected"
" services updated")
return (False, False, [])
return (False, False, [])
api.register(update_service_principalalias)
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