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#
# Copyright (C) 2015 FreeIPA Contributors see COPYING for license
#
from __future__ import print_function
import os.path
from ipaserver.install import cainstance, custodiainstance, dsinstance, bindinstance
from ipapython import ipautil, certdb
from ipapython.admintool import ScriptError
from ipaplatform import services
from ipaplatform.paths import paths
from ipaserver.install import installutils, certs
from ipaserver.install.replication import replica_conn_check
from ipalib import api, certstore, x509
from ipapython.dn import DN
from ipapython.ipa_log_manager import root_logger
external_cert_file = None
external_ca_file = None
def install_check(standalone, replica_config, options):
global external_cert_file
global external_ca_file
if replica_config is not None and not replica_config.setup_ca:
return
realm_name = options.realm_name
host_name = options.host_name
subject_base = options.subject
if replica_config is not None:
if standalone and api.env.ra_plugin == 'selfsign':
raise ScriptError('A selfsign CA can not be added')
cafile = os.path.join(replica_config.dir, 'cacert.p12')
if not options.promote and not ipautil.file_exists(cafile):
raise ScriptError('CA cannot be installed in CA-less setup.')
if standalone and not options.skip_conncheck:
principal = options.principal
replica_conn_check(
replica_config.ca_host_name, host_name, realm_name, True,
replica_config.ca_ds_port, options.admin_password,
principal=principal, ca_cert_file=options.ca_cert_file)
if options.skip_schema_check:
root_logger.info("Skipping CA DS schema check")
else:
cainstance.replica_ca_install_check(replica_config, options.promote)
return
if standalone:
if api.Command.ca_is_enabled()['result']:
raise ScriptError(
"One or more CA masters are already present in IPA realm "
"'%s'.\nIf you wish to replicate CA to this host, please "
"re-run 'ipa-ca-install'\nwith a replica file generated on "
"an existing CA master as argument." % realm_name
)
if options.external_cert_files:
if not cainstance.is_step_one_done():
# This can happen if someone passes external_ca_file without
# already having done the first stage of the CA install.
raise ScriptError(
"CA is not installed yet. To install with an external CA "
"is a two-stage process.\nFirst run the installer with "
"--external-ca.")
external_cert_file, external_ca_file = installutils.load_external_cert(
options.external_cert_files, options.subject)
elif options.external_ca:
if cainstance.is_step_one_done():
raise ScriptError(
"CA is already installed.\nRun the installer with "
"--external-cert-file.")
if ipautil.file_exists(paths.ROOT_IPA_CSR):
raise ScriptError(
"CA CSR file %s already exists.\nIn order to continue "
"remove the file and run the installer again." %
paths.ROOT_IPA_CSR)
if not options.external_cert_files:
if not cainstance.check_port():
print("IPA requires port 8443 for PKI but it is currently in use.")
raise ScriptError("Aborting installation")
if standalone:
dirname = dsinstance.config_dirname(
installutils.realm_to_serverid(realm_name))
cadb = certs.CertDB(realm_name, subject_base=subject_base)
dsdb = certs.CertDB(realm_name, nssdir=dirname, subject_base=subject_base)
for db in (cadb, dsdb):
for nickname, _trust_flags in db.list_certs():
if nickname in (certdb.get_ca_nickname(realm_name),
'ipaCert'):
raise ScriptError(
"Certificate with nickname %s is present in %s, "
"cannot continue." % (nickname, db.secdir))
cert = db.get_cert_from_db(nickname)
if not cert:
continue
subject = DN(x509.load_certificate(cert).subject)
if subject in (DN('CN=Certificate Authority', subject_base),
DN('CN=IPA RA', subject_base)):
raise ScriptError(
"Certificate with subject %s is present in %s, "
"cannot continue." % (subject, db.secdir))
def install(standalone, replica_config, options):
install_step_0(standalone, replica_config, options)
install_step_1(standalone, replica_config, options)
def install_step_0(standalone, replica_config, options):
realm_name = options.realm_name
dm_password = options.dm_password
host_name = options.host_name
if replica_config is None:
subject_base = options.subject
ca_signing_algorithm = options.ca_signing_algorithm
if options.external_ca:
ca_type = options.external_ca_type
csr_file = paths.ROOT_IPA_CSR
else:
ca_type = None
csr_file = None
if options.external_cert_files:
cert_file = external_cert_file.name
cert_chain_file = external_ca_file.name
else:
cert_file = None
cert_chain_file = None
pkcs12_info = None
master_host = None
master_replication_port = None
ra_p12 = None
ra_only = False
promote = False
else:
cafile = os.path.join(replica_config.dir, 'cacert.p12')
if options.promote:
custodia = custodiainstance.CustodiaInstance(
replica_config.host_name,
replica_config.realm_name)
custodia.get_ca_keys(
replica_config.ca_host_name,
cafile,
replica_config.dirman_password)
subject_base = replica_config.subject_base
ca_signing_algorithm = None
ca_type = None
csr_file = None
cert_file = None
cert_chain_file = None
pkcs12_info = (cafile,)
master_host = replica_config.ca_host_name
master_replication_port = replica_config.ca_ds_port
ra_p12 = os.path.join(replica_config.dir, 'ra.p12')
ra_only = not replica_config.setup_ca
promote = options.promote
ca = cainstance.CAInstance(realm_name, certs.NSS_DIR,
host_name=host_name)
ca.configure_instance(host_name, dm_password, dm_password,
subject_base=subject_base,
ca_signing_algorithm=ca_signing_algorithm,
ca_type=ca_type,
csr_file=csr_file,
cert_file=cert_file,
cert_chain_file=cert_chain_file,
pkcs12_info=pkcs12_info,
master_host=master_host,
master_replication_port=master_replication_port,
ra_p12=ra_p12,
ra_only=ra_only,
promote=promote)
def install_step_1(standalone, replica_config, options):
if replica_config is not None and not replica_config.setup_ca:
return
realm_name = options.realm_name
dm_password = options.dm_password
host_name = options.host_name
subject_base = options.subject
basedn = ipautil.realm_to_suffix(realm_name)
ca = cainstance.CAInstance(realm_name, certs.NSS_DIR, host_name=host_name)
ca.stop('pki-tomcat')
# This is done within stopped_service context, which restarts CA
ca.enable_client_auth_to_db(paths.CA_CS_CFG_PATH)
# Lightweight CA key retrieval is configured in step 1 instead
# of CAInstance.configure_instance (which is invoked from step
# 0) because kadmin_addprinc fails until krb5.conf is installed
# by krb.create_instance.
#
ca.setup_lightweight_ca_key_retrieval()
serverid = installutils.realm_to_serverid(realm_name)
if standalone and replica_config is None:
dirname = dsinstance.config_dirname(serverid)
# Store the new IPA CA cert chain in DS NSS database and LDAP
cadb = certs.CertDB(realm_name, subject_base=subject_base)
dsdb = certs.CertDB(realm_name, nssdir=dirname, subject_base=subject_base)
trust_flags = dict(reversed(cadb.list_certs()))
trust_chain = cadb.find_root_cert('ipaCert')[:-1]
for nickname in trust_chain[:-1]:
cert = cadb.get_cert_from_db(nickname, pem=False)
dsdb.add_cert(cert, nickname, trust_flags[nickname])
certstore.put_ca_cert_nss(api.Backend.ldap2, api.env.basedn,
cert, nickname, trust_flags[nickname])
nickname = trust_chain[-1]
cert = cadb.get_cert_from_db(nickname, pem=False)
dsdb.add_cert(cert, nickname, trust_flags[nickname])
certstore.put_ca_cert_nss(api.Backend.ldap2, api.env.basedn,
cert, nickname, trust_flags[nickname],
config_ipa=True, config_compat=True)
# Store DS CA cert in Dogtag NSS database
dogtagdb = certs.CertDB(realm_name, nssdir=paths.PKI_TOMCAT_ALIAS_DIR)
trust_flags = dict(reversed(dsdb.list_certs()))
server_certs = dsdb.find_server_certs()
trust_chain = dsdb.find_root_cert(server_certs[0][0])[:-1]
nickname = trust_chain[-1]
cert = dsdb.get_cert_from_db(nickname)
dogtagdb.add_cert(cert, nickname, trust_flags[nickname])
installutils.restart_dirsrv()
ca.start('pki-tomcat')
if standalone or replica_config is not None:
# We need to restart apache as we drop a new config file in there
services.knownservices.httpd.restart(capture_output=True)
if standalone:
# Install CA DNS records
if bindinstance.dns_container_exists(host_name, basedn, dm_password):
bind = bindinstance.BindInstance()
bind.update_system_records()
def uninstall():
ca_instance = cainstance.CAInstance(
api.env.realm, certs.NSS_DIR)
ca_instance.stop_tracking_certificates()
if ca_instance.is_configured():
ca_instance.uninstall()
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