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#!/usr/bin/python2 -E
#
# Authors:
#   Rob Crittenden <rcritten@redhat.com>
#   Jan Cholasta <jcholast@redhat.com>
#
# Copyright (C) 2013  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 sys
import os
import syslog
import tempfile
import shutil
import traceback

from ipalib.install.kinit import kinit_keytab
from ipalib import api
from ipaserver.install import certs, cainstance, krainstance
from ipaplatform.paths import paths


def _main():
    nickname = 'ipaCert'

    api.bootstrap(in_server=True, context='restart', confdir=paths.ETC_IPA)
    api.finalize()
    api.Backend.ldap2.connect()

    tmpdir = tempfile.mkdtemp(prefix="tmp-")
    try:
        principal = str('host/%s@%s' % (api.env.host, api.env.realm))
        ccache_filename = os.path.join(tmpdir, 'ccache')
        kinit_keytab(principal, paths.KRB5_KEYTAB, ccache_filename)
        os.environ['KRB5CCNAME'] = ccache_filename

        ca = cainstance.CAInstance(host_name=api.env.host)
        if ca.is_renewal_master():
            # Fetch the new certificate
            db = certs.CertDB(api.env.realm)
            dercert = db.get_cert_from_db(nickname, pem=False)
            if not dercert:
                syslog.syslog(
                    syslog.LOG_ERR, "No certificate %s found." % nickname)
                sys.exit(1)

            # Load it into dogtag
            cainstance.update_people_entry(dercert)

        if api.Command.kra_is_enabled()['result']:
            krainstance.export_kra_agent_pem()
    finally:
        shutil.rmtree(tmpdir)
        api.Backend.ldap2.disconnect()


def main():
    try:
        _main()
    finally:
        # lock acquired in renew_ra_cert_pre
        certs.renewal_lock.release('renew_ra_cert')


try:
    main()
except Exception:
    syslog.syslog(syslog.LOG_ERR, traceback.format_exc())