Rob Crittenden
e4470f8165
Let the user, upon installation, set the certificate subject base for the dogtag CA. Certificate requests will automatically be given this subject base, regardless of what is in the CSR. The selfsign plugin does not currently support this dynamic name re-assignment and will reject any incoming requests that don't conform to the subject base. The certificate subject base is stored in cn=ipaconfig but it does NOT dynamically update the configuration, for dogtag at least. The file /var/lib/pki-ca/profiles/ca/caIPAserviceCert.cfg would need to be updated and pki-cad restarted.
239 lines
8.6 KiB
Python
239 lines
8.6 KiB
Python
# Authors:
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# Rob Crittenden <rcritten@@redhat.com>
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# John Dennis <jdennis@redhat.com>
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#
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# Copyright (C) 2009 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
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; version 2 only
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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, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""
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Backend plugin for RA activities.
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The `ra` plugin provides access to the CA to issue, retrieve, and revoke
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certificates via the following methods:
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* `ra.check_request_status()` - check certificate request status.
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* `ra.get_certificate()` - retrieve an existing certificate.
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* `ra.request_certificate()` - request a new certificate.
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* `ra.revoke_certificate()` - revoke a certificate.
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* `ra.take_certificate_off_hold()` - take a certificate off hold.
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"""
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from ipalib import api, SkipPluginModule
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if api.env.ra_plugin != 'selfsign':
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# In this case, abort loading this plugin module...
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raise SkipPluginModule(reason='selfsign is not selected as RA plugin, it is %s' % api.env.ra_plugin)
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from ipalib import Backend
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from ipalib import errors
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from ipalib import x509
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from ipalib import pkcs10
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import subprocess
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import os
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import re
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from ipaserver.plugins import rabase
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from ipaserver.install import certs
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import tempfile
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from pyasn1 import error
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from ipalib.request import ugettext as _
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from pyasn1.codec.der import encoder
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import base64
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from ipalib.plugins.cert import get_csr_hostname
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class ra(rabase.rabase):
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"""
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Request Authority backend plugin.
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"""
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def request_certificate(self, csr, request_type='pkcs10'):
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"""
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:param csr: The certificate signing request.
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:param request_type: The request type (defaults to ``'pkcs10'``).
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Submit certificate signing request.
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The command returns a dict with these possible key/value pairs.
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Some key/value pairs may be absent.
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+---------------+---------------+---------------+
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|result name |result type |comments |
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+===============+===============+===============+
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|serial_number |unicode [1]_ | |
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+---------------+---------------+---------------+
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|certificate |unicode [2]_ | |
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+---------------+---------------+---------------+
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|request_id |unicode | |
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+---------------+---------------+---------------+
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|subject |unicode | |
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+---------------+---------------+---------------+
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.. [1] Passed through XMLRPC as decimal string. Can convert to
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optimal integer type (int or long) via int(serial_number)
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.. [2] Base64 encoded
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"""
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try:
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config = api.Command['config_show']()['result']
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subject_base = config.get('ipacertificatesubjectbase')[0]
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hostname = get_csr_hostname(csr)
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request = pkcs10.load_certificate_request(csr)
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base = re.split(',\s*(?=\w+=)', subject_base)
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base.reverse()
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base.append("CN=%s" % hostname)
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request_subject = request.get_subject().get_components()
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new_request = []
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for r in request_subject:
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new_request.append("%s=%s" % (r[0], r[1]))
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if str(base).lower() != str(new_request).lower():
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subject_base='CN=%s, %s' % (hostname, subject_base)
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new_request.reverse()
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raise errors.CertificateOperationError(error=_('Request subject \'%s\' does not match the form \'%s\'' % (", ".join(new_request), subject_base)))
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except errors.CertificateOperationError, e:
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raise e
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except Exception, e:
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raise errors.CertificateOperationError(error=_('unable to decode csr: %s' % e))
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# certutil wants the CSR to have have a header and footer. Add one
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# if it isn't there.
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s = csr.find('-----BEGIN NEW CERTIFICATE REQUEST-----')
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if s == -1:
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s = csr.find('-----BEGIN CERTIFICATE REQUEST-----')
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if s == -1:
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csr = '-----BEGIN NEW CERTIFICATE REQUEST-----\n' + csr + \
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'\n-----END NEW CERTIFICATE REQUEST-----\n'
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try:
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(csr_fd, csr_name) = tempfile.mkstemp()
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os.write(csr_fd, csr)
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os.close(csr_fd)
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except Exception, e:
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try:
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os.remove(csr_name)
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except:
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pass
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self.log.error('unable to create temporary csr file: %s' % e)
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raise errors.CertificateOperationError(error=_('file operation'))
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try:
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(cert_fd, cert_name) = tempfile.mkstemp()
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os.close(cert_fd)
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except Exception, e:
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try:
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os.remove(csr_name)
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except:
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pass
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try:
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os.remove(cert_name)
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except:
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pass
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self.log.error('unable to create temporary certificate file: %s' % e)
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raise errors.CertificateOperationError(error=_('file operation'))
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try:
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serialno = certs.next_serial(self.serial_file)
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except Exception, e:
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try:
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os.remove(csr_name)
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except:
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pass
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try:
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os.remove(cert_name)
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except:
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pass
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self.log.error('next_serial() failed: %s' % e)
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raise errors.CertificateOperationError(error=_('cannot obtain next serial number'))
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try:
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args = [
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"/usr/bin/certutil",
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"-C",
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"-d", self.sec_dir,
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"-c", "CA certificate",
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"-i", csr_name,
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"-o", cert_name,
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"-m", str(serialno),
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"-v", "60",
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"-1",
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"-5",
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"-6",
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"-a",
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"-f", self.pwd_file]
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self.log.debug("issue cert: %s" % str(args))
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p = subprocess.Popen(args,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE, close_fds=True)
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p.stdin.write("0\n1\n2\n3\n9\ny\n")
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p.stdin.write("0\n9\nn\n")
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p.stdin.write("1\n9\nn\n")
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(stdout, stderr) = p.communicate()
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status = p.returncode
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self.log.debug("stdout = %s" % stdout)
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self.log.debug("stderr = %s" % stderr)
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if status != 0:
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try:
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os.remove(cert_name)
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except:
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pass
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self.log.error('certutil failed: %s' % stderr)
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raise errors.CertificateOperationError(error=_('certutil failure'))
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finally:
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try:
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os.remove(csr_name)
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except:
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pass
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try:
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cert_fd = open(cert_name)
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cert = cert_fd.read()
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cert_fd.close()
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finally:
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try:
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os.remove(cert_name)
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except:
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pass
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try:
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# Grab the subject, reverse it, combine it and return it
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sub = list(x509.get_subject_components(cert))
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sub.reverse()
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subject = ""
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for s in sub:
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subject = subject + "%s=%s," % (s[0], s[1])
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subject = subject[:-1]
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serial = x509.get_serial_number(cert)
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except error.PyAsn1Error, e:
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self.log.error('Unable to decode certificate in entry: %s' % str(e))
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raise errors.CertificateOperationError(error='Unable to decode certificate in entry: %s' % str(e))
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# To make it look like dogtag return just the base64 data.
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cert = cert.replace('\n','')
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cert = cert.replace('\r','')
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s = cert.find('-----BEGIN CERTIFICATE-----')
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e = cert.find('-----END CERTIFICATE-----')
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s = s + 27
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cert = cert[s:e]
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cmd_result = {}
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cmd_result['serial_number'] = unicode(serial) # convert long to decimal unicode string
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cmd_result['certificate'] = unicode(cert)
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cmd_result['subject'] = unicode(subject)
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return cmd_result
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api.register(ra)
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