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1c7261773b
It is possible that either or both of the LDAP instances are being restarted during the renewal process. Make the script retry if this is the case. It is also safe to re-run this script if it fails. It will take the current ipaCert certificate and attempt to update the agent information in LDAP. https://fedorahosted.org/freeipa/ticket/3179
136 lines
4.6 KiB
Python
136 lines
4.6 KiB
Python
#!/usr/bin/python -E
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#
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# Authors:
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# Rob Crittenden <rcritten@redhat.com>
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#
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# Copyright (C) 2012 Red Hat
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# see file 'COPYING' for use and warranty information
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import sys
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import shutil
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import tempfile
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import syslog
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import time
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from ipapython import services as ipaservices
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from ipapython.certmonger import get_pin
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from ipapython import ipautil
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from ipaserver.install import certs
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from ipaserver.install.cainstance import DEFAULT_DSPORT
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from ipalib import api
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from ipapython.dn import DN
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from ipalib import x509
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from ipalib import errors
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from ipaserver.plugins.ldap2 import ldap2
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import ldap as _ldap
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api.bootstrap(context='restart')
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api.finalize()
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# Fetch the new certificate
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db = certs.CertDB(api.env.realm)
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cert = db.get_cert_from_db('ipaCert', pem=False)
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serial_number = x509.get_serial_number(cert, datatype=x509.DER)
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subject = x509.get_subject(cert, datatype=x509.DER)
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issuer = x509.get_issuer(cert, datatype=x509.DER)
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# Load it into dogtag
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dn = DN(('uid','ipara'),('ou','People'),('o','ipaca'))
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try:
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dm_password = get_pin('internaldb')
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except IOError, e:
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syslog.syslog(syslog.LOG_ERR, 'Unable to determine PIN for CA instance: %s' % e)
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sys.exit(1)
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attempts = 0
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dogtag_uri='ldap://localhost:%d' % DEFAULT_DSPORT
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updated = False
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while attempts < 10:
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conn = None
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try:
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conn = ldap2(shared_instance=False, ldap_uri=dogtag_uri)
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conn.connect(bind_dn=DN(('cn', 'directory manager')), bind_pw=dm_password)
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(entry_dn, entry_attrs) = conn.get_entry(dn, ['usercertificate'], normalize=False)
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entry_attrs['usercertificate'].append(cert)
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entry_attrs['description'] = '2;%d;%s;%s' % (serial_number, issuer, subject)
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conn.update_entry(dn, entry_attrs, normalize=False)
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updated = True
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break
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except errors.NetworkError:
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syslog.syslog(syslog.LOG_ERR, 'Connection to %s failed, sleeping 30s' % dogtag_uri)
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time.sleep(30)
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attempts += 1
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except errors.EmptyModlist:
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updated = True
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break
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except Exception, e:
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syslog.syslog(syslog.LOG_ERR, 'Updating agent entry failed: %s' % e)
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break
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finally:
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if conn.isconnected():
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conn.disconnect()
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if not updated:
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syslog.syslog(syslog.LOG_ERR, '%s: Giving up. This script may be safely re-executed.' % sys.argv[0])
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sys.exit(1)
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attempts = 0
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updated = False
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# Store it in the IPA LDAP server
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while attempts < 10:
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conn = None
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tmpdir = None
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try:
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tmpdir = tempfile.mkdtemp(prefix="tmp-")
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dn = DN(('cn','ipaCert'), ('cn', 'ca_renewal'), ('cn', 'ipa'), ('cn', 'etc'), api.env.basedn)
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principal = str('host/%s@%s' % (api.env.host, api.env.realm))
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ccache = ipautil.kinit_hostprincipal('/etc/krb5.keytab', tmpdir, principal)
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conn = ldap2(shared_instance=False, ldap_uri=api.env.ldap_uri)
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conn.connect(ccache=ccache)
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try:
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(entry_dn, entry_attrs) = conn.get_entry(dn, ['usercertificate'])
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entry_attrs['usercertificate'] = cert
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conn.update_entry(dn, entry_attrs, normalize=False)
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except errors.NotFound:
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entry_attrs = dict(objectclass=['top', 'pkiuser', 'nscontainer'],
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usercertificate=cert)
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conn.add_entry(dn, entry_attrs, normalize=False)
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except errors.EmptyModlist:
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pass
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updated = True
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break
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except Exception, e:
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syslog.syslog(syslog.LOG_ERR, 'Updating renewal certificate failed: %s. Sleeping 30s' % e)
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time.sleep(30)
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attempts += 1
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finally:
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if conn is not None and conn.isconnected():
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conn.disconnect()
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if tmpdir is not None:
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shutil.rmtree(tmpdir)
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if not updated:
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syslog.syslog(syslog.LOG_ERR, '%s: Giving up. This script may be safely re-executed.' % sys.argv[0])
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sys.exit(1)
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# Now restart Apache so the new certificate is available
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try:
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ipaservices.knownservices.httpd.restart()
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except Exception, e:
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syslog.syslog(syslog.LOG_ERR, "Cannot restart httpd: %s" % str(e))
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