Imported Upstream version 4.6.2
This commit is contained in:
738
ipaserver/install/certs.py
Normal file
738
ipaserver/install/certs.py
Normal file
@@ -0,0 +1,738 @@
|
||||
# Authors: Karl MacMillan <kmacmillan@mentalrootkit.com>
|
||||
#
|
||||
# Copyright (C) 2007 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 logging
|
||||
import os
|
||||
import stat
|
||||
import sys
|
||||
import tempfile
|
||||
import shutil
|
||||
import xml.dom.minidom
|
||||
import grp
|
||||
import pwd
|
||||
import base64
|
||||
import fcntl
|
||||
import time
|
||||
import datetime
|
||||
|
||||
import six
|
||||
from six.moves import configparser
|
||||
|
||||
from ipalib.install import certmonger, sysrestore
|
||||
from ipapython import dogtag
|
||||
from ipapython import ipautil
|
||||
from ipapython.certdb import EMPTY_TRUST_FLAGS, IPA_CA_TRUST_FLAGS
|
||||
from ipapython.certdb import get_ca_nickname, find_cert_from_txt, NSSDatabase
|
||||
from ipapython.dn import DN
|
||||
from ipalib import x509, api
|
||||
from ipalib.errors import CertificateOperationError
|
||||
from ipalib.install import certstore
|
||||
from ipalib.util import strip_csr_header
|
||||
from ipalib.text import _
|
||||
from ipaplatform.paths import paths
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
|
||||
def get_cert_nickname(cert):
|
||||
"""
|
||||
Using the subject from cert come up with a nickname suitable
|
||||
for NSS. The caller can decide whether to use just the RDN
|
||||
or the whole subject.
|
||||
|
||||
Returns a tuple of (rdn, subject_dn) when rdn is the string
|
||||
representation of the first RDN in the subject and subject_dn
|
||||
is a DN object.
|
||||
"""
|
||||
dn = DN(cert.subject)
|
||||
return (str(dn[0]), dn)
|
||||
|
||||
|
||||
def install_pem_from_p12(p12_fname, p12_passwd, pem_fname):
|
||||
pwd = ipautil.write_tmp_file(p12_passwd)
|
||||
ipautil.run([paths.OPENSSL, "pkcs12", "-nokeys", "-clcerts",
|
||||
"-in", p12_fname, "-out", pem_fname,
|
||||
"-passin", "file:" + pwd.name])
|
||||
|
||||
|
||||
def install_key_from_p12(p12_fname, p12_passwd, pem_fname):
|
||||
pwd = ipautil.write_tmp_file(p12_passwd)
|
||||
ipautil.run([paths.OPENSSL, "pkcs12", "-nodes", "-nocerts",
|
||||
"-in", p12_fname, "-out", pem_fname,
|
||||
"-passin", "file:" + pwd.name],
|
||||
umask=0o077)
|
||||
|
||||
|
||||
def export_pem_p12(pkcs12_fname, pkcs12_pwd_fname, nickname, pem_fname):
|
||||
ipautil.run([paths.OPENSSL, "pkcs12",
|
||||
"-export", "-name", nickname,
|
||||
"-in", pem_fname, "-out", pkcs12_fname,
|
||||
"-passout", "file:" + pkcs12_pwd_fname])
|
||||
|
||||
|
||||
class CertDB(object):
|
||||
"""An IPA-server-specific wrapper around NSS
|
||||
|
||||
This class knows IPA-specific details such as nssdir location, or the
|
||||
CA cert name.
|
||||
|
||||
``subject_base``
|
||||
Realm subject base DN. This argument is required when creating
|
||||
server or object signing certs.
|
||||
``ca_subject``
|
||||
IPA CA subject DN. This argument is required when importing
|
||||
CA certificates into the certificate database.
|
||||
|
||||
"""
|
||||
# TODO: Remove all selfsign code
|
||||
def __init__(self, realm, nssdir, fstore=None,
|
||||
host_name=None, subject_base=None, ca_subject=None,
|
||||
user=None, group=None, mode=None, create=False):
|
||||
self.nssdb = NSSDatabase(nssdir)
|
||||
|
||||
self.secdir = nssdir
|
||||
self.realm = realm
|
||||
|
||||
self.noise_fname = self.secdir + "/noise.txt"
|
||||
self.certdb_fname = self.secdir + "/cert8.db"
|
||||
self.keydb_fname = self.secdir + "/key3.db"
|
||||
self.secmod_fname = self.secdir + "/secmod.db"
|
||||
self.pk12_fname = self.secdir + "/cacert.p12"
|
||||
self.pin_fname = self.secdir + "/pin.txt"
|
||||
self.reqdir = None
|
||||
self.certreq_fname = None
|
||||
self.certder_fname = None
|
||||
self.host_name = host_name
|
||||
self.ca_subject = ca_subject
|
||||
self.subject_base = subject_base
|
||||
|
||||
try:
|
||||
self.cwd = os.path.abspath(os.getcwd())
|
||||
except OSError as e:
|
||||
raise RuntimeError(
|
||||
"Unable to determine the current directory: %s" % str(e))
|
||||
|
||||
self.cacert_name = get_ca_nickname(self.realm)
|
||||
|
||||
self.user = user
|
||||
self.group = group
|
||||
self.mode = mode
|
||||
self.uid = 0
|
||||
self.gid = 0
|
||||
|
||||
if not create:
|
||||
if os.path.isdir(self.secdir):
|
||||
# We are going to set the owner of all of the cert
|
||||
# files to the owner of the containing directory
|
||||
# instead of that of the process. This works when
|
||||
# this is called by root for a daemon that runs as
|
||||
# a normal user
|
||||
mode = os.stat(self.secdir)
|
||||
self.uid = mode[stat.ST_UID]
|
||||
self.gid = mode[stat.ST_GID]
|
||||
else:
|
||||
if user is not None:
|
||||
pu = pwd.getpwnam(user)
|
||||
self.uid = pu.pw_uid
|
||||
self.gid = pu.pw_gid
|
||||
if group is not None:
|
||||
self.gid = grp.getgrnam(group).gr_gid
|
||||
self.create_certdbs()
|
||||
|
||||
if fstore:
|
||||
self.fstore = fstore
|
||||
else:
|
||||
self.fstore = sysrestore.FileStore(paths.SYSRESTORE)
|
||||
|
||||
ca_subject = ipautil.dn_attribute_property('_ca_subject')
|
||||
subject_base = ipautil.dn_attribute_property('_subject_base')
|
||||
|
||||
@property
|
||||
def passwd_fname(self):
|
||||
return self.nssdb.pwd_file
|
||||
|
||||
def exists(self):
|
||||
"""
|
||||
Checks whether all NSS database files + our pwd_file exist
|
||||
"""
|
||||
db_files = (
|
||||
self.secdir,
|
||||
self.certdb_fname,
|
||||
self.keydb_fname,
|
||||
self.secmod_fname,
|
||||
self.nssdb.pwd_file,
|
||||
)
|
||||
|
||||
for f in db_files:
|
||||
if not os.path.exists(f):
|
||||
return False
|
||||
return True
|
||||
|
||||
def __del__(self):
|
||||
if self.reqdir is not None:
|
||||
shutil.rmtree(self.reqdir, ignore_errors=True)
|
||||
self.reqdir = None
|
||||
self.nssdb.close()
|
||||
try:
|
||||
os.chdir(self.cwd)
|
||||
except OSError:
|
||||
pass
|
||||
|
||||
def setup_cert_request(self):
|
||||
"""
|
||||
Create a temporary directory to store certificate requests and
|
||||
certificates. This should be called before requesting certificates.
|
||||
|
||||
This is set outside of __init__ to avoid creating a temporary
|
||||
directory every time we open a cert DB.
|
||||
"""
|
||||
if self.reqdir is not None:
|
||||
return
|
||||
|
||||
self.reqdir = tempfile.mkdtemp('', 'ipa-', paths.VAR_LIB_IPA)
|
||||
self.certreq_fname = self.reqdir + "/tmpcertreq"
|
||||
self.certder_fname = self.reqdir + "/tmpcert.der"
|
||||
|
||||
# When certutil makes a request it creates a file in the cwd, make
|
||||
# sure we are in a unique place when this happens
|
||||
os.chdir(self.reqdir)
|
||||
|
||||
def set_perms(self, fname, write=False):
|
||||
perms = stat.S_IRUSR
|
||||
if write:
|
||||
perms |= stat.S_IWUSR
|
||||
if hasattr(fname, 'fileno'):
|
||||
os.fchown(fname.fileno(), self.uid, self.gid)
|
||||
os.fchmod(fname.fileno(), perms)
|
||||
else:
|
||||
os.chown(fname, self.uid, self.gid)
|
||||
os.chmod(fname, perms)
|
||||
|
||||
def run_certutil(self, args, stdin=None, **kwargs):
|
||||
return self.nssdb.run_certutil(args, stdin, **kwargs)
|
||||
|
||||
def create_noise_file(self):
|
||||
if os.path.isfile(self.noise_fname):
|
||||
os.remove(self.noise_fname)
|
||||
with open(self.noise_fname, "w") as f:
|
||||
self.set_perms(f)
|
||||
f.write(ipautil.ipa_generate_password())
|
||||
|
||||
def create_passwd_file(self, passwd=None):
|
||||
ipautil.backup_file(self.passwd_fname)
|
||||
with open(self.passwd_fname, "w") as f:
|
||||
self.set_perms(f)
|
||||
if passwd is not None:
|
||||
f.write("%s\n" % passwd)
|
||||
else:
|
||||
f.write(ipautil.ipa_generate_password())
|
||||
|
||||
def create_certdbs(self):
|
||||
self.nssdb.create_db(user=self.user, group=self.group, mode=self.mode,
|
||||
backup=True)
|
||||
self.set_perms(self.passwd_fname, write=True)
|
||||
|
||||
def restore(self):
|
||||
self.nssdb.restore()
|
||||
|
||||
def list_certs(self):
|
||||
"""
|
||||
Return a tuple of tuples containing (nickname, trust)
|
||||
"""
|
||||
return self.nssdb.list_certs()
|
||||
|
||||
def has_nickname(self, nickname):
|
||||
"""
|
||||
Returns True if nickname exists in the certdb, False otherwise.
|
||||
|
||||
This could also be done directly with:
|
||||
certutil -L -d -n <nickname> ...
|
||||
"""
|
||||
|
||||
certs = self.list_certs()
|
||||
|
||||
for cert in certs:
|
||||
if nickname == cert[0]:
|
||||
return True
|
||||
|
||||
return False
|
||||
|
||||
def export_ca_cert(self, nickname, create_pkcs12=False):
|
||||
"""create_pkcs12 tells us whether we should create a PKCS#12 file
|
||||
of the CA or not. If we are running on a replica then we won't
|
||||
have the private key to make a PKCS#12 file so we don't need to
|
||||
do that step."""
|
||||
cacert_fname = paths.IPA_CA_CRT
|
||||
# export the CA cert for use with other apps
|
||||
ipautil.backup_file(cacert_fname)
|
||||
root_nicknames = self.find_root_cert(nickname)[:-1]
|
||||
with open(cacert_fname, "w") as f:
|
||||
os.fchmod(f.fileno(), stat.S_IRUSR | stat.S_IRGRP | stat.S_IROTH)
|
||||
for root in root_nicknames:
|
||||
result = self.run_certutil(["-L", "-n", root, "-a"],
|
||||
capture_output=True)
|
||||
f.write(result.output)
|
||||
|
||||
if create_pkcs12:
|
||||
ipautil.backup_file(self.pk12_fname)
|
||||
ipautil.run([paths.PK12UTIL, "-d", self.secdir,
|
||||
"-o", self.pk12_fname,
|
||||
"-n", self.cacert_name,
|
||||
"-w", self.passwd_fname,
|
||||
"-k", self.passwd_fname])
|
||||
self.set_perms(self.pk12_fname)
|
||||
|
||||
def load_cacert(self, cacert_fname, trust_flags):
|
||||
"""
|
||||
Load all the certificates from a given file. It is assumed that
|
||||
this file creates CA certificates.
|
||||
"""
|
||||
with open(cacert_fname) as f:
|
||||
certs = f.read()
|
||||
|
||||
st = 0
|
||||
while True:
|
||||
try:
|
||||
(cert, st) = find_cert_from_txt(certs, st)
|
||||
_rdn, subject_dn = get_cert_nickname(cert)
|
||||
if subject_dn == self.ca_subject:
|
||||
nick = get_ca_nickname(self.realm)
|
||||
else:
|
||||
nick = str(subject_dn)
|
||||
self.nssdb.add_cert(cert, nick, trust_flags)
|
||||
except RuntimeError:
|
||||
break
|
||||
|
||||
def get_cert_from_db(self, nickname):
|
||||
"""
|
||||
Retrieve a certificate from the current NSS database for nickname.
|
||||
"""
|
||||
try:
|
||||
args = ["-L", "-n", nickname, "-a"]
|
||||
result = self.run_certutil(args, capture_output=True)
|
||||
return x509.load_pem_x509_certificate(result.raw_output)
|
||||
except ipautil.CalledProcessError:
|
||||
return None
|
||||
|
||||
def track_server_cert(self, nickname, principal, password_file=None, command=None):
|
||||
"""
|
||||
Tell certmonger to track the given certificate nickname.
|
||||
"""
|
||||
try:
|
||||
request_id = certmonger.start_tracking(
|
||||
self.secdir, nickname=nickname, pinfile=password_file,
|
||||
post_command=command)
|
||||
except RuntimeError as e:
|
||||
logger.error("certmonger failed starting to track certificate: %s",
|
||||
str(e))
|
||||
return
|
||||
|
||||
cert = self.get_cert_from_db(nickname)
|
||||
subject = str(DN(cert.subject))
|
||||
certmonger.add_principal(request_id, principal)
|
||||
certmonger.add_subject(request_id, subject)
|
||||
|
||||
def untrack_server_cert(self, nickname):
|
||||
"""
|
||||
Tell certmonger to stop tracking the given certificate nickname.
|
||||
"""
|
||||
try:
|
||||
certmonger.stop_tracking(self.secdir, nickname=nickname)
|
||||
except RuntimeError as e:
|
||||
logger.error("certmonger failed to stop tracking certificate: %s",
|
||||
str(e))
|
||||
|
||||
def create_server_cert(self, nickname, hostname, subject=None):
|
||||
"""
|
||||
If we are using a dogtag CA then other_certdb contains the RA agent key
|
||||
that will issue our cert.
|
||||
|
||||
You can override the certificate Subject by specifying a subject.
|
||||
|
||||
Returns a certificate in DER format.
|
||||
"""
|
||||
if subject is None:
|
||||
subject=DN(('CN', hostname), self.subject_base)
|
||||
self.request_cert(subject, san_dnsnames=[hostname])
|
||||
try:
|
||||
self.issue_server_cert(self.certreq_fname, self.certder_fname)
|
||||
self.import_cert(self.certder_fname, nickname)
|
||||
|
||||
with open(self.certder_fname, "rb") as f:
|
||||
dercert = f.read()
|
||||
return x509.load_der_x509_certificate(dercert)
|
||||
finally:
|
||||
for fname in (self.certreq_fname, self.certder_fname):
|
||||
try:
|
||||
os.unlink(fname)
|
||||
except OSError:
|
||||
pass
|
||||
|
||||
def request_cert(
|
||||
self, subject, certtype="rsa", keysize="2048",
|
||||
san_dnsnames=None):
|
||||
assert isinstance(subject, DN)
|
||||
self.create_noise_file()
|
||||
self.setup_cert_request()
|
||||
args = ["-R", "-s", str(subject),
|
||||
"-o", self.certreq_fname,
|
||||
"-k", certtype,
|
||||
"-g", keysize,
|
||||
"-z", self.noise_fname,
|
||||
"-f", self.passwd_fname,
|
||||
"-a"]
|
||||
if san_dnsnames is not None and len(san_dnsnames) > 0:
|
||||
args += ['-8', ','.join(san_dnsnames)]
|
||||
result = self.run_certutil(args,
|
||||
capture_output=True, capture_error=True)
|
||||
os.remove(self.noise_fname)
|
||||
return (result.output, result.error_output)
|
||||
|
||||
def issue_server_cert(self, certreq_fname, cert_fname):
|
||||
self.setup_cert_request()
|
||||
|
||||
if self.host_name is None:
|
||||
raise RuntimeError("CA Host is not set.")
|
||||
|
||||
with open(certreq_fname, "rb") as f:
|
||||
csr = f.read()
|
||||
|
||||
# We just want the CSR bits, make sure there is no thing else
|
||||
csr = strip_csr_header(csr).decode('utf8')
|
||||
|
||||
params = {'profileId': dogtag.DEFAULT_PROFILE,
|
||||
'cert_request_type': 'pkcs10',
|
||||
'requestor_name': 'IPA Installer',
|
||||
'cert_request': csr,
|
||||
'xmlOutput': 'true'}
|
||||
|
||||
# Send the request to the CA
|
||||
result = dogtag.https_request(
|
||||
self.host_name, 8443,
|
||||
url="/ca/ee/ca/profileSubmitSSLClient",
|
||||
cafile=api.env.tls_ca_cert,
|
||||
client_certfile=paths.RA_AGENT_PEM,
|
||||
client_keyfile=paths.RA_AGENT_KEY,
|
||||
**params)
|
||||
http_status, _http_headers, http_body = result
|
||||
logger.debug("CA answer: %r", http_body)
|
||||
|
||||
if http_status != 200:
|
||||
raise CertificateOperationError(
|
||||
error=_('Unable to communicate with CMS (status %d)') % http_status)
|
||||
|
||||
# The result is an XML blob. Pull the certificate out of that
|
||||
doc = xml.dom.minidom.parseString(http_body)
|
||||
item_node = doc.getElementsByTagName("b64")
|
||||
try:
|
||||
try:
|
||||
cert = item_node[0].childNodes[0].data
|
||||
except IndexError:
|
||||
raise RuntimeError("Certificate issuance failed")
|
||||
finally:
|
||||
doc.unlink()
|
||||
|
||||
# base64-decode the result for uniformity
|
||||
cert = base64.b64decode(cert)
|
||||
|
||||
# Write the certificate to a file. It will be imported in a later
|
||||
# step. This file will be read later to be imported.
|
||||
with open(cert_fname, "wb") as f:
|
||||
f.write(cert)
|
||||
|
||||
def add_cert(self, cert, nick, flags):
|
||||
self.nssdb.add_cert(cert, nick, flags)
|
||||
|
||||
def import_cert(self, cert_fname, nickname):
|
||||
"""
|
||||
Load a certificate from a PEM file and add minimal trust.
|
||||
"""
|
||||
args = ["-A", "-n", nickname,
|
||||
"-t", "u,u,u",
|
||||
"-i", cert_fname,
|
||||
"-f", self.passwd_fname]
|
||||
self.run_certutil(args)
|
||||
|
||||
def delete_cert(self, nickname):
|
||||
self.nssdb.delete_cert(nickname)
|
||||
|
||||
def create_pin_file(self):
|
||||
"""
|
||||
This is the format of Directory Server pin files.
|
||||
"""
|
||||
ipautil.backup_file(self.pin_fname)
|
||||
with open(self.pin_fname, "w") as pinfile:
|
||||
self.set_perms(pinfile)
|
||||
pinfile.write("Internal (Software) Token:")
|
||||
with open(self.passwd_fname) as pwdfile:
|
||||
pinfile.write(pwdfile.read())
|
||||
|
||||
def find_root_cert(self, nickname):
|
||||
"""
|
||||
Given a nickname, return a list of the certificates that make up
|
||||
the trust chain.
|
||||
"""
|
||||
root_nicknames = self.nssdb.get_trust_chain(nickname)
|
||||
|
||||
return root_nicknames
|
||||
|
||||
def trust_root_cert(self, root_nickname, trust_flags):
|
||||
if root_nickname is None:
|
||||
logger.debug("Unable to identify root certificate to trust. "
|
||||
"Continuing but things are likely to fail.")
|
||||
return
|
||||
|
||||
try:
|
||||
self.nssdb.trust_root_cert(root_nickname, trust_flags)
|
||||
except RuntimeError:
|
||||
pass
|
||||
|
||||
def find_server_certs(self):
|
||||
return self.nssdb.find_server_certs()
|
||||
|
||||
def import_pkcs12(self, pkcs12_fname, pkcs12_passwd=None):
|
||||
return self.nssdb.import_pkcs12(pkcs12_fname,
|
||||
pkcs12_passwd=pkcs12_passwd)
|
||||
|
||||
def export_pkcs12(self, pkcs12_fname, pkcs12_pwd_fname, nickname=None):
|
||||
if nickname is None:
|
||||
nickname = get_ca_nickname(api.env.realm)
|
||||
|
||||
ipautil.run([paths.PK12UTIL, "-d", self.secdir,
|
||||
"-o", pkcs12_fname,
|
||||
"-n", nickname,
|
||||
"-k", self.passwd_fname,
|
||||
"-w", pkcs12_pwd_fname])
|
||||
|
||||
def create_from_cacert(self):
|
||||
cacert_fname = paths.IPA_CA_CRT
|
||||
if os.path.isfile(self.certdb_fname):
|
||||
# We already have a cert db, see if it is for the same CA.
|
||||
# If it is we leave things as they are.
|
||||
with open(cacert_fname, "r") as f:
|
||||
newca = f.read()
|
||||
|
||||
newca, _st = find_cert_from_txt(newca)
|
||||
|
||||
cacert = self.get_cert_from_db(self.cacert_name)
|
||||
|
||||
if newca == cacert:
|
||||
return
|
||||
|
||||
# The CA certificates are different or something went wrong. Start with
|
||||
# a new certificate database.
|
||||
self.create_passwd_file()
|
||||
self.create_certdbs()
|
||||
self.load_cacert(cacert_fname, IPA_CA_TRUST_FLAGS)
|
||||
|
||||
def create_from_pkcs12(self, pkcs12_fname, pkcs12_passwd,
|
||||
ca_file, trust_flags):
|
||||
"""Create a new NSS database using the certificates in a PKCS#12 file.
|
||||
|
||||
pkcs12_fname: the filename of the PKCS#12 file
|
||||
pkcs12_pwd_fname: the file containing the pin for the PKCS#12 file
|
||||
nickname: the nickname/friendly-name of the cert we are loading
|
||||
|
||||
The global CA may be added as well in case it wasn't included in the
|
||||
PKCS#12 file. Extra certs won't hurt in any case.
|
||||
|
||||
The global CA may be specified in ca_file, as a PEM filename.
|
||||
"""
|
||||
self.create_noise_file()
|
||||
self.create_passwd_file()
|
||||
self.create_certdbs()
|
||||
self.init_from_pkcs12(
|
||||
pkcs12_fname,
|
||||
pkcs12_passwd,
|
||||
ca_file=ca_file,
|
||||
trust_flags=trust_flags)
|
||||
|
||||
def init_from_pkcs12(self, pkcs12_fname, pkcs12_passwd,
|
||||
ca_file, trust_flags):
|
||||
self.import_pkcs12(pkcs12_fname, pkcs12_passwd)
|
||||
server_certs = self.find_server_certs()
|
||||
if len(server_certs) == 0:
|
||||
raise RuntimeError("Could not find a suitable server cert in import in %s" % pkcs12_fname)
|
||||
|
||||
if ca_file:
|
||||
try:
|
||||
with open(ca_file) as fd:
|
||||
certs = fd.read()
|
||||
except IOError as e:
|
||||
raise RuntimeError(
|
||||
"Failed to open %s: %s" % (ca_file, e.strerror))
|
||||
st = 0
|
||||
num = 1
|
||||
while True:
|
||||
try:
|
||||
cert, st = find_cert_from_txt(certs, st)
|
||||
except RuntimeError:
|
||||
break
|
||||
self.add_cert(cert, 'CA %s' % num, EMPTY_TRUST_FLAGS)
|
||||
num += 1
|
||||
|
||||
# We only handle one server cert
|
||||
nickname = server_certs[0][0]
|
||||
|
||||
ca_names = self.find_root_cert(nickname)[:-1]
|
||||
if len(ca_names) == 0:
|
||||
raise RuntimeError("Could not find a CA cert in %s" % pkcs12_fname)
|
||||
|
||||
self.cacert_name = ca_names[-1]
|
||||
self.trust_root_cert(self.cacert_name, trust_flags)
|
||||
|
||||
self.export_ca_cert(nickname, False)
|
||||
|
||||
def export_pem_cert(self, nickname, location):
|
||||
return self.nssdb.export_pem_cert(nickname, location)
|
||||
|
||||
def request_service_cert(self, nickname, principal, host):
|
||||
certmonger.request_and_wait_for_cert(certpath=self.secdir,
|
||||
nickname=nickname,
|
||||
principal=principal,
|
||||
subject=host,
|
||||
passwd_fname=self.passwd_fname)
|
||||
|
||||
def is_ipa_issued_cert(self, api, nickname):
|
||||
"""
|
||||
Return True if the certificate contained in the CertDB with the
|
||||
provided nickname has been issued by IPA.
|
||||
|
||||
Note that this method can only be executed if api has been initialized
|
||||
"""
|
||||
# This method needs to compare the cert issuer (from the NSS DB
|
||||
# and the subject from the CA (from LDAP), because nicknames are not
|
||||
# always aligned.
|
||||
|
||||
cacert_subject = certstore.get_ca_subject(
|
||||
api.Backend.ldap2,
|
||||
api.env.container_ca,
|
||||
api.env.basedn)
|
||||
|
||||
# The cert can be issued directly by IPA. In this case, the cert
|
||||
# issuer is IPA CA subject.
|
||||
cert = self.get_cert_from_db(nickname)
|
||||
if cert is None:
|
||||
raise RuntimeError("Could not find the cert %s in %s"
|
||||
% (nickname, self.secdir))
|
||||
|
||||
return DN(cert.issuer) == cacert_subject
|
||||
|
||||
|
||||
class _CrossProcessLock(object):
|
||||
_DATETIME_FORMAT = '%Y%m%d%H%M%S%f'
|
||||
|
||||
def __init__(self, filename):
|
||||
self._filename = filename
|
||||
|
||||
def __enter__(self):
|
||||
self.acquire()
|
||||
|
||||
def __exit__(self, exc_type, exc_value, traceback):
|
||||
self.release()
|
||||
|
||||
def acquire(self, owner=None):
|
||||
self._do(self._acquire, owner)
|
||||
|
||||
def release(self, owner=None):
|
||||
self._do(self._release, owner)
|
||||
|
||||
def _acquire(self, owner):
|
||||
now = datetime.datetime.utcnow()
|
||||
|
||||
if self._locked and now >= self._expire:
|
||||
self._locked = False
|
||||
|
||||
if self._locked:
|
||||
return False
|
||||
|
||||
self._locked = True
|
||||
self._owner = owner
|
||||
self._expire = now + datetime.timedelta(hours=1)
|
||||
|
||||
return True
|
||||
|
||||
def _release(self, owner):
|
||||
if not self._locked or self._owner != owner:
|
||||
raise RuntimeError("lock not acquired by %s" % owner)
|
||||
|
||||
self._locked = False
|
||||
self._owner = None
|
||||
self._expire = None
|
||||
|
||||
return True
|
||||
|
||||
def _do(self, func, owner):
|
||||
if owner is None:
|
||||
owner = '%s[%s]' % (os.path.basename(sys.argv[0]), os.getpid())
|
||||
|
||||
while True:
|
||||
with open(self._filename, 'a+') as f:
|
||||
fcntl.flock(f, fcntl.LOCK_EX)
|
||||
|
||||
f.seek(0)
|
||||
self._read(f)
|
||||
|
||||
if func(owner):
|
||||
f.seek(0)
|
||||
f.truncate()
|
||||
self._write(f)
|
||||
return
|
||||
|
||||
time.sleep(10)
|
||||
|
||||
def _read(self, fileobj):
|
||||
p = configparser.RawConfigParser()
|
||||
if six.PY2:
|
||||
p.readfp(fileobj) # pylint: disable=deprecated-method
|
||||
else:
|
||||
p.read_file(fileobj) # pylint: disable=no-member
|
||||
|
||||
try:
|
||||
self._locked = p.getboolean('lock', 'locked')
|
||||
|
||||
if self._locked:
|
||||
self._owner = p.get('lock', 'owner')
|
||||
|
||||
expire = p.get('lock', 'expire')
|
||||
try:
|
||||
self._expire = datetime.datetime.strptime(
|
||||
expire, self._DATETIME_FORMAT)
|
||||
except ValueError:
|
||||
raise configparser.Error
|
||||
except configparser.Error:
|
||||
self._locked = False
|
||||
self._owner = None
|
||||
self._expire = None
|
||||
|
||||
def _write(self, fileobj):
|
||||
p = configparser.RawConfigParser()
|
||||
p.add_section('lock')
|
||||
|
||||
locked = '1' if self._locked else '0'
|
||||
p.set('lock', 'locked', locked)
|
||||
|
||||
if self._locked:
|
||||
expire = self._expire.strftime(self._DATETIME_FORMAT)
|
||||
p.set('lock', 'owner', self._owner)
|
||||
p.set('lock', 'expire', expire)
|
||||
|
||||
p.write(fileobj)
|
||||
|
||||
renewal_lock = _CrossProcessLock(paths.IPA_RENEWAL_LOCK)
|
||||
Reference in New Issue
Block a user