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# Authors: Karl MacMillan <kmacmillan@mentalrootkit.com>
# Jan Cholasta <jcholast@redhat.com>
#
# Copyright (C) 2007-2013 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 os
import os.path
import pwd
import optparse # pylint: disable=deprecated-module
from ipaplatform.constants import constants
from ipaplatform.paths import paths
from ipapython import admintool
from ipapython.certdb import get_ca_nickname, NSSDatabase
from ipapython.dn import DN
from ipalib import api, errors
from ipaserver.install import certs, dsinstance, installutils
class ServerCertInstall(admintool.AdminTool):
command_name = 'ipa-server-certinstall'
usage = "%prog <-d|-w> [options] <file> ..."
description = "Install new SSL server certificates."
@classmethod
def add_options(cls, parser):
super(ServerCertInstall, cls).add_options(parser)
parser.add_option(
"-d", "--dirsrv",
dest="dirsrv", action="store_true", default=False,
help="install certificate for the directory server")
parser.add_option(
"-w", "--http",
dest="http", action="store_true", default=False,
help="install certificate for the http server")
parser.add_option(
"--pin",
dest="pin", metavar="PIN", sensitive=True,
help="The password of the PKCS#12 file")
parser.add_option(
"--dirsrv_pin", "--http_pin",
dest="pin",
help=optparse.SUPPRESS_HELP)
parser.add_option(
"--cert-name",
dest="cert_name", metavar="NAME",
help="Name of the certificate to install")
parser.add_option(
"-p", "--dirman-password",
dest="dirman_password",
help="Directory Manager password")
def validate_options(self):
super(ServerCertInstall, self).validate_options(needs_root=True)
installutils.check_server_configuration()
if not self.options.dirsrv and not self.options.http:
self.option_parser.error("you must specify dirsrv and/or http")
if not self.args:
self.option_parser.error("you must provide certificate filename")
def ask_for_options(self):
super(ServerCertInstall, self).ask_for_options()
if not self.options.dirman_password:
self.options.dirman_password = installutils.read_password(
"Directory Manager", confirm=False, validate=False, retry=False)
if self.options.dirman_password is None:
raise admintool.ScriptError(
"Directory Manager password required")
if self.options.pin is None:
self.options.pin = installutils.read_password(
"Enter private key unlock",
confirm=False, validate=False, retry=False)
if self.options.pin is None:
raise admintool.ScriptError(
"Private key unlock password required")
def run(self):
api.bootstrap(in_server=True, confdir=paths.ETC_IPA)
api.finalize()
api.Backend.ldap2.connect(bind_pw=self.options.dirman_password)
if self.options.dirsrv:
self.install_dirsrv_cert()
if self.options.http:
self.install_http_cert()
api.Backend.ldap2.disconnect()
def install_dirsrv_cert(self):
serverid = installutils.realm_to_serverid(api.env.realm)
dirname = dsinstance.config_dirname(serverid)
conn = api.Backend.ldap2
entry = conn.get_entry(DN(('cn', 'RSA'), ('cn', 'encryption'),
('cn', 'config')),
['nssslpersonalityssl'])
old_cert = entry.single_value['nssslpersonalityssl']
server_cert = self.import_cert(dirname, self.options.pin,
old_cert, 'ldap/%s' % api.env.host,
'restart_dirsrv %s' % serverid)
entry['nssslpersonalityssl'] = [server_cert]
try:
conn.update_entry(entry)
except errors.EmptyModlist:
pass
def install_http_cert(self):
dirname = paths.HTTPD_ALIAS_DIR
old_cert = installutils.get_directive(paths.HTTPD_NSS_CONF,
'NSSNickname')
unquoted_cert = installutils.unquote_directive_value(
old_cert, quote_char="'")
server_cert = self.import_cert(dirname, self.options.pin,
unquoted_cert, 'HTTP/%s' % api.env.host,
'restart_httpd')
quoted_server_cert = installutils.quote_directive_value(
server_cert, quote_char="'")
installutils.set_directive(
paths.HTTPD_NSS_CONF,
'NSSNickname',
quoted_server_cert,
quotes=False)
# Fix the database permissions
os.chmod(os.path.join(dirname, 'cert8.db'), 0o640)
os.chmod(os.path.join(dirname, 'key3.db'), 0o640)
os.chmod(os.path.join(dirname, 'secmod.db'), 0o640)
pent = pwd.getpwnam(constants.HTTPD_USER)
os.chown(os.path.join(dirname, 'cert8.db'), 0, pent.pw_gid)
os.chown(os.path.join(dirname, 'key3.db'), 0, pent.pw_gid)
os.chown(os.path.join(dirname, 'secmod.db'), 0, pent.pw_gid)
def check_chain(self, pkcs12_filename, pkcs12_pin, nssdb):
# create a temp nssdb
with NSSDatabase() as tempnssdb:
tempnssdb.create_db()
# import the PKCS12 file, then delete all CA certificates
# this leaves only the server certs in the temp db
tempnssdb.import_pkcs12(pkcs12_filename, pkcs12_pin)
for nickname, flags in tempnssdb.list_certs():
if 'u' not in flags:
while tempnssdb.has_nickname(nickname):
tempnssdb.delete_cert(nickname)
# import all the CA certs from nssdb into the temp db
for nickname, flags in nssdb.list_certs():
if 'u' not in flags:
cert = nssdb.get_cert_from_db(nickname)
tempnssdb.add_cert(cert, nickname, flags)
# now get the server certs from tempnssdb and check their validity
try:
for nick, flags in tempnssdb.find_server_certs():
tempnssdb.verify_server_cert_validity(nick, api.env.host)
except ValueError as e:
raise admintool.ScriptError(
"Peer's certificate issuer is not trusted (%s). "
"Please run ipa-cacert-manage install and ipa-certupdate "
"to install the CA certificate." % str(e))
def import_cert(self, dirname, pkcs12_passwd, old_cert, principal, command):
pkcs12_file, pin, ca_cert = installutils.load_pkcs12(
cert_files=self.args,
key_password=pkcs12_passwd,
key_nickname=self.options.cert_name,
ca_cert_files=[paths.IPA_CA_CRT],
host_name=api.env.host)
dirname = os.path.normpath(dirname)
cdb = certs.CertDB(api.env.realm, nssdir=dirname)
# Check that the ca_cert is known and trusted
self.check_chain(pkcs12_file.name, pin, cdb)
try:
ca_enabled = api.Command.ca_is_enabled()['result']
if ca_enabled:
cdb.untrack_server_cert(old_cert)
cdb.delete_cert(old_cert)
prevs = cdb.find_server_certs()
cdb.import_pkcs12(pkcs12_file.name, pin)
news = cdb.find_server_certs()
server_certs = [item for item in news if item not in prevs]
server_cert = server_certs[0][0]
if ca_enabled:
# Start tracking only if the cert was issued by IPA CA
# Retrieve IPA CA
ipa_ca_cert = cdb.get_cert_from_db(
get_ca_nickname(api.env.realm),
pem=False)
# And compare with the CA which signed this certificate
if ca_cert == ipa_ca_cert:
cdb.track_server_cert(server_cert,
principal,
cdb.passwd_fname,
command)
except RuntimeError as e:
raise admintool.ScriptError(str(e))
return server_cert
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