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# Authors: Rob Crittenden <rcritten@redhat.com>
#
# Copyright (C) 2010 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/>.
#
import os
import sys
import shutil
import random
import traceback
from ipapython.ipa_log_manager import *
from ipaserver.install import installutils
from ipaserver.install import dsinstance
from ipaserver.install import ldapupdate
from ipaserver.install import service
DSBASE = '/etc/dirsrv/slapd-'
DSE = 'dse.ldif'
class IPAUpgrade(service.Service):
"""
Update the LDAP data in an instance by turning off all network
listeners and updating over ldapi. This way we know the server is
quiet.
"""
def __init__(self, realm_name, files=[], live_run=True):
"""
realm_name: kerberos realm name, used to determine DS instance dir
files: list of update files to process. If none use UPDATEDIR
live_run: boolean that defines if we are in test or live mode.
"""
ext = ''
rand = random.Random()
for i in range(8):
h = "%02x" % rand.randint(0,255)
ext += h
service.Service.__init__(self, "dirsrv")
serverid = dsinstance.realm_to_serverid(realm_name)
self.filename = '%s%s/%s' % (DSBASE, serverid, DSE)
self.savefilename = '%s%s/%s.ipa.%s' % (DSBASE, serverid, DSE, ext)
self.live_run = live_run
self.files = files
self.modified = False
self.badsyntax = False
self.upgradefailed = False
self.serverid = serverid
def __start_nowait(self):
# Don't wait here because we've turned off port 389. The connection
# we make will wait for the socket.
super(IPAUpgrade, self).start(wait=False)
def __stop_instance(self):
"""Stop only the main DS instance"""
super(IPAUpgrade, self).stop(self.serverid)
def create_instance(self):
self.step("stopping directory server", self.__stop_instance)
self.step("saving configuration", self.__save_config)
self.step("disabling listeners", self.__disable_listeners)
self.step("starting directory server", self.__start_nowait)
self.step("upgrading server", self.__upgrade)
self.step("stopping directory server", self.__stop_instance)
self.step("restoring configuration", self.__restore_config)
self.step("starting directory server", self.start)
self.start_creation(start_message="Upgrading IPA:",
show_service_name=False)
def __save_config(self):
shutil.copy2(self.filename, self.savefilename)
port = installutils.get_directive(self.filename, 'nsslapd-port',
separator=':')
security = installutils.get_directive(self.filename, 'nsslapd-security',
separator=':')
self.backup_state('nsslapd-port', port)
self.backup_state('nsslapd-security', security)
def __restore_config(self):
port = self.restore_state('nsslapd-port')
security = self.restore_state('nsslapd-security')
installutils.set_directive(self.filename, 'nsslapd-port',
port, quotes=False, separator=':')
installutils.set_directive(self.filename, 'nsslapd-security',
security, quotes=False, separator=':')
def __disable_listeners(self):
installutils.set_directive(self.filename, 'nsslapd-port',
0, quotes=False, separator=':')
installutils.set_directive(self.filename, 'nsslapd-security',
'off', quotes=False, separator=':')
installutils.set_directive(self.filename, 'nsslapd-ldapientrysearchbase',
None, quotes=False, separator=':')
def __upgrade(self):
try:
ld = ldapupdate.LDAPUpdate(dm_password='', ldapi=True, live_run=self.live_run, plugins=True)
if len(self.files) == 0:
self.files = ld.get_all_files(ldapupdate.UPDATES_DIR)
self.modified = ld.update(self.files)
except ldapupdate.BadSyntax, e:
root_logger.error('Bad syntax in upgrade %s' % str(e))
self.modified = False
self.badsyntax = True
except Exception, e:
# Bad things happened, return gracefully
self.modified = False
self.upgradefailed = True
root_logger.error('Upgrade failed with %s' % str(e))
root_logger.debug('%s', traceback.format_exc())
def main():
if os.getegid() != 0:
print "Must be root to set up server"
return 1
update = IPAUpgrade('EXAMPLE.COM')
update.create_instance()
return 0
try:
if __name__ == "__main__":
sys.exit(main())
except SystemExit, e:
sys.exit(e)
except KeyboardInterrupt, e:
sys.exit(1)
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