community.general/lib/ansible/modules/crypto/openssl_certificate.py

1915 lines
76 KiB
Python

#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright: (c) 2016-2017, Yanis Guenane <yanis+ansible@guenane.org>
# Copyright: (c) 2017, Markus Teufelberger <mteufelberger+ansible@mgit.at>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = r'''
---
module: openssl_certificate
version_added: "2.4"
short_description: Generate and/or check OpenSSL certificates
description:
- This module allows one to (re)generate OpenSSL certificates.
- It implements a notion of provider (ie. C(selfsigned), C(ownca), C(acme), C(assertonly))
for your certificate.
- The C(assertonly) provider is intended for use cases where one is only interested in
checking properties of a supplied certificate.
- The C(ownca) provider is intended for generate OpenSSL certificate signed with your own
CA (Certificate Authority) certificate (self-signed certificate).
- Many properties that can be specified in this module are for validation of an
existing or newly generated certificate. The proper place to specify them, if you
want to receive a certificate with these properties is a CSR (Certificate Signing Request).
- "Please note that the module regenerates existing certificate if it doesn't match the module's
options, or if it seems to be corrupt. If you are concerned that this could overwrite
your existing certificate, consider using the I(backup) option."
- It uses the pyOpenSSL or cryptography python library to interact with OpenSSL.
- If both the cryptography and PyOpenSSL libraries are available (and meet the minimum version requirements)
cryptography will be preferred as a backend over PyOpenSSL (unless the backend is forced with C(select_crypto_backend))
requirements:
- PyOpenSSL >= 0.15 or cryptography >= 1.6 (if using C(selfsigned) or C(assertonly) provider)
- acme-tiny (if using the C(acme) provider)
author:
- Yanis Guenane (@Spredzy)
- Markus Teufelberger (@MarkusTeufelberger)
options:
state:
description:
- Whether the certificate should exist or not, taking action if the state is different from what is stated.
type: str
default: present
choices: [ absent, present ]
path:
description:
- Remote absolute path where the generated certificate file should be created or is already located.
type: path
required: true
provider:
description:
- Name of the provider to use to generate/retrieve the OpenSSL certificate.
- The C(assertonly) provider will not generate files and fail if the certificate file is missing.
type: str
required: true
choices: [ acme, assertonly, ownca, selfsigned ]
force:
description:
- Generate the certificate, even if it already exists.
type: bool
default: no
csr_path:
description:
- Path to the Certificate Signing Request (CSR) used to generate this certificate.
- This is not required in C(assertonly) mode.
type: path
privatekey_path:
description:
- Path to the private key to use when signing the certificate.
type: path
privatekey_passphrase:
description:
- The passphrase for the I(privatekey_path).
- This is required if the private key is password protected.
type: str
selfsigned_version:
description:
- Version of the C(selfsigned) certificate.
- Nowadays it should almost always be C(3).
- This is only used by the C(selfsigned) provider.
type: int
default: 3
version_added: "2.5"
selfsigned_digest:
description:
- Digest algorithm to be used when self-signing the certificate.
- This is only used by the C(selfsigned) provider.
type: str
default: sha256
selfsigned_not_before:
description:
- The point in time the certificate is valid from.
- Time can be specified either as relative time or as absolute timestamp.
- Time will always be interpreted as UTC.
- Valid format is C([+-]timespec | ASN.1 TIME) where timespec can be an integer
+ C([w | d | h | m | s]) (e.g. C(+32w1d2h).
- Note that if using relative time this module is NOT idempotent.
- If this value is not specified, the certificate will start being valid from now.
- This is only used by the C(selfsigned) provider.
type: str
default: +0s
aliases: [ selfsigned_notBefore ]
selfsigned_not_after:
description:
- The point in time at which the certificate stops being valid.
- Time can be specified either as relative time or as absolute timestamp.
- Time will always be interpreted as UTC.
- Valid format is C([+-]timespec | ASN.1 TIME) where timespec can be an integer
+ C([w | d | h | m | s]) (e.g. C(+32w1d2h).
- Note that if using relative time this module is NOT idempotent.
- If this value is not specified, the certificate will stop being valid 10 years from now.
- This is only used by the C(selfsigned) provider.
type: str
default: +3650d
aliases: [ selfsigned_notAfter ]
ownca_path:
description:
- Remote absolute path of the CA (Certificate Authority) certificate.
- This is only used by the C(ownca) provider.
type: path
version_added: "2.7"
ownca_privatekey_path:
description:
- Path to the CA (Certificate Authority) private key to use when signing the certificate.
- This is only used by the C(ownca) provider.
type: path
version_added: "2.7"
ownca_privatekey_passphrase:
description:
- The passphrase for the I(ownca_privatekey_path).
- This is only used by the C(ownca) provider.
type: str
version_added: "2.7"
ownca_digest:
description:
- The digest algorithm to be used for the C(ownca) certificate.
- This is only used by the C(ownca) provider.
type: str
default: sha256
version_added: "2.7"
ownca_version:
description:
- The version of the C(ownca) certificate.
- Nowadays it should almost always be C(3).
- This is only used by the C(ownca) provider.
type: int
default: 3
version_added: "2.7"
ownca_not_before:
description:
- The point in time the certificate is valid from.
- Time can be specified either as relative time or as absolute timestamp.
- Time will always be interpreted as UTC.
- Valid format is C([+-]timespec | ASN.1 TIME) where timespec can be an integer
+ C([w | d | h | m | s]) (e.g. C(+32w1d2h).
- Note that if using relative time this module is NOT idempotent.
- If this value is not specified, the certificate will start being valid from now.
- This is only used by the C(ownca) provider.
type: str
default: +0s
version_added: "2.7"
ownca_not_after:
description:
- The point in time at which the certificate stops being valid.
- Time can be specified either as relative time or as absolute timestamp.
- Time will always be interpreted as UTC.
- Valid format is C([+-]timespec | ASN.1 TIME) where timespec can be an integer
+ C([w | d | h | m | s]) (e.g. C(+32w1d2h).
- Note that if using relative time this module is NOT idempotent.
- If this value is not specified, the certificate will stop being valid 10 years from now.
- This is only used by the C(ownca) provider.
type: str
default: +3650d
version_added: "2.7"
acme_accountkey_path:
description:
- The path to the accountkey for the C(acme) provider.
- This is only used by the C(acme) provider.
type: path
acme_challenge_path:
description:
- The path to the ACME challenge directory that is served on U(http://<HOST>:80/.well-known/acme-challenge/)
- This is only used by the C(acme) provider.
type: path
acme_chain:
description:
- Include the intermediate certificate to the generated certificate
- This is only used by the C(acme) provider.
- Note that this is only available for older versions of C(acme-tiny).
New versions include the chain automatically, and setting I(acme_chain) to C(yes) results in an error.
type: bool
default: no
version_added: "2.5"
signature_algorithms:
description:
- A list of algorithms that you would accept the certificate to be signed with
(e.g. ['sha256WithRSAEncryption', 'sha512WithRSAEncryption']).
- This is only used by the C(assertonly) provider.
type: list
issuer:
description:
- The key/value pairs that must be present in the issuer name field of the certificate.
- If you need to specify more than one value with the same key, use a list as value.
- This is only used by the C(assertonly) provider.
type: dict
issuer_strict:
description:
- If set to C(yes), the I(issuer) field must contain only these values.
- This is only used by the C(assertonly) provider.
type: bool
default: no
version_added: "2.5"
subject:
description:
- The key/value pairs that must be present in the subject name field of the certificate.
- If you need to specify more than one value with the same key, use a list as value.
- This is only used by the C(assertonly) provider.
type: dict
subject_strict:
description:
- If set to C(yes), the I(subject) field must contain only these values.
- This is only used by the C(assertonly) provider.
type: bool
default: no
version_added: "2.5"
has_expired:
description:
- Checks if the certificate is expired/not expired at the time the module is executed.
- This is only used by the C(assertonly) provider.
type: bool
default: no
version:
description:
- The version of the certificate.
- Nowadays it should almost always be 3.
- This is only used by the C(assertonly) provider.
type: int
valid_at:
description:
- The certificate must be valid at this point in time.
- The timestamp is formatted as an ASN.1 TIME.
- This is only used by the C(assertonly) provider.
type: str
invalid_at:
description:
- The certificate must be invalid at this point in time.
- The timestamp is formatted as an ASN.1 TIME.
- This is only used by the C(assertonly) provider.
type: str
not_before:
description:
- The certificate must start to become valid at this point in time.
- The timestamp is formatted as an ASN.1 TIME.
- This is only used by the C(assertonly) provider.
type: str
aliases: [ notBefore ]
not_after:
description:
- The certificate must expire at this point in time.
- The timestamp is formatted as an ASN.1 TIME.
- This is only used by the C(assertonly) provider.
type: str
aliases: [ notAfter ]
valid_in:
description:
- The certificate must still be valid at this relative time offset from now.
- Valid format is C([+-]timespec | number_of_seconds) where timespec can be an integer
+ C([w | d | h | m | s]) (e.g. C(+32w1d2h).
- Note that if using this parameter, this module is NOT idempotent.
- This is only used by the C(assertonly) provider.
type: str
key_usage:
description:
- The I(key_usage) extension field must contain all these values.
- This is only used by the C(assertonly) provider.
type: list
aliases: [ keyUsage ]
key_usage_strict:
description:
- If set to C(yes), the I(key_usage) extension field must contain only these values.
- This is only used by the C(assertonly) provider.
type: bool
default: no
aliases: [ keyUsage_strict ]
extended_key_usage:
description:
- The I(extended_key_usage) extension field must contain all these values.
- This is only used by the C(assertonly) provider.
type: list
aliases: [ extendedKeyUsage ]
extended_key_usage_strict:
description:
- If set to C(yes), the I(extended_key_usage) extension field must contain only these values.
- This is only used by the C(assertonly) provider.
type: bool
default: no
aliases: [ extendedKeyUsage_strict ]
subject_alt_name:
description:
- The I(subject_alt_name) extension field must contain these values.
- This is only used by the C(assertonly) provider.
type: list
aliases: [ subjectAltName ]
subject_alt_name_strict:
description:
- If set to C(yes), the I(subject_alt_name) extension field must contain only these values.
- This is only used by the C(assertonly) provider.
type: bool
default: no
aliases: [ subjectAltName_strict ]
select_crypto_backend:
description:
- Determines which crypto backend to use.
- The default choice is C(auto), which tries to use C(cryptography) if available, and falls back to C(pyopenssl).
- If set to C(pyopenssl), will try to use the L(pyOpenSSL,https://pypi.org/project/pyOpenSSL/) library.
- If set to C(cryptography), will try to use the L(cryptography,https://cryptography.io/) library.
type: str
default: auto
choices: [ auto, cryptography, pyopenssl ]
version_added: "2.8"
backup:
description:
- Create a backup file including a timestamp so you can get the original
certificate back if you overwrote it with a new one by accident.
- This is not used by the C(assertonly) provider.
type: bool
default: no
version_added: "2.8"
extends_documentation_fragment: files
notes:
- All ASN.1 TIME values should be specified following the YYYYMMDDHHMMSSZ pattern.
- Date specified should be UTC. Minutes and seconds are mandatory.
- For security reason, when you use C(ownca) provider, you should NOT run M(openssl_certificate) on
a target machine, but on a dedicated CA machine. It is recommended not to store the CA private key
on the target machine. Once signed, the certificate can be moved to the target machine.
seealso:
- module: openssl_csr
- module: openssl_dhparam
- module: openssl_pkcs12
- module: openssl_privatekey
- module: openssl_publickey
'''
EXAMPLES = r'''
- name: Generate a Self Signed OpenSSL certificate
openssl_certificate:
path: /etc/ssl/crt/ansible.com.crt
privatekey_path: /etc/ssl/private/ansible.com.pem
csr_path: /etc/ssl/csr/ansible.com.csr
provider: selfsigned
- name: Generate an OpenSSL certificate signed with your own CA certificate
openssl_certificate:
path: /etc/ssl/crt/ansible.com.crt
csr_path: /etc/ssl/csr/ansible.com.csr
ownca_path: /etc/ssl/crt/ansible_CA.crt
ownca_privatekey_path: /etc/ssl/private/ansible_CA.pem
provider: ownca
- name: Generate a Let's Encrypt Certificate
openssl_certificate:
path: /etc/ssl/crt/ansible.com.crt
csr_path: /etc/ssl/csr/ansible.com.csr
provider: acme
acme_accountkey_path: /etc/ssl/private/ansible.com.pem
acme_challenge_path: /etc/ssl/challenges/ansible.com/
- name: Force (re-)generate a new Let's Encrypt Certificate
openssl_certificate:
path: /etc/ssl/crt/ansible.com.crt
csr_path: /etc/ssl/csr/ansible.com.csr
provider: acme
acme_accountkey_path: /etc/ssl/private/ansible.com.pem
acme_challenge_path: /etc/ssl/challenges/ansible.com/
force: yes
# Examples for some checks one could use the assertonly provider for:
# How to use the assertonly provider to implement and trigger your own custom certificate generation workflow:
- name: Check if a certificate is currently still valid, ignoring failures
openssl_certificate:
path: /etc/ssl/crt/example.com.crt
provider: assertonly
has_expired: no
ignore_errors: yes
register: validity_check
- name: Run custom task(s) to get a new, valid certificate in case the initial check failed
command: superspecialSSL recreate /etc/ssl/crt/example.com.crt
when: validity_check.failed
- name: Check the new certificate again for validity with the same parameters, this time failing the play if it is still invalid
openssl_certificate:
path: /etc/ssl/crt/example.com.crt
provider: assertonly
has_expired: no
when: validity_check.failed
# Some other checks that assertonly could be used for:
- name: Verify that an existing certificate was issued by the Let's Encrypt CA and is currently still valid
openssl_certificate:
path: /etc/ssl/crt/example.com.crt
provider: assertonly
issuer:
O: Let's Encrypt
has_expired: no
- name: Ensure that a certificate uses a modern signature algorithm (no SHA1, MD5 or DSA)
openssl_certificate:
path: /etc/ssl/crt/example.com.crt
provider: assertonly
signature_algorithms:
- sha224WithRSAEncryption
- sha256WithRSAEncryption
- sha384WithRSAEncryption
- sha512WithRSAEncryption
- sha224WithECDSAEncryption
- sha256WithECDSAEncryption
- sha384WithECDSAEncryption
- sha512WithECDSAEncryption
- name: Ensure that the existing certificate belongs to the specified private key
openssl_certificate:
path: /etc/ssl/crt/example.com.crt
privatekey_path: /etc/ssl/private/example.com.pem
provider: assertonly
- name: Ensure that the existing certificate is still valid at the winter solstice 2017
openssl_certificate:
path: /etc/ssl/crt/example.com.crt
provider: assertonly
valid_at: 20171221162800Z
- name: Ensure that the existing certificate is still valid 2 weeks (1209600 seconds) from now
openssl_certificate:
path: /etc/ssl/crt/example.com.crt
provider: assertonly
valid_in: 1209600
- name: Ensure that the existing certificate is only used for digital signatures and encrypting other keys
openssl_certificate:
path: /etc/ssl/crt/example.com.crt
provider: assertonly
key_usage:
- digitalSignature
- keyEncipherment
key_usage_strict: true
- name: Ensure that the existing certificate can be used for client authentication
openssl_certificate:
path: /etc/ssl/crt/example.com.crt
provider: assertonly
extended_key_usage:
- clientAuth
- name: Ensure that the existing certificate can only be used for client authentication and time stamping
openssl_certificate:
path: /etc/ssl/crt/example.com.crt
provider: assertonly
extended_key_usage:
- clientAuth
- 1.3.6.1.5.5.7.3.8
extended_key_usage_strict: true
- name: Ensure that the existing certificate has a certain domain in its subjectAltName
openssl_certificate:
path: /etc/ssl/crt/example.com.crt
provider: assertonly
subject_alt_name:
- www.example.com
- test.example.com
'''
RETURN = r'''
filename:
description: Path to the generated Certificate
returned: changed or success
type: str
sample: /etc/ssl/crt/www.ansible.com.crt
backup_file:
description: Name of backup file created.
returned: changed and if I(backup) is C(yes)
type: str
sample: /path/to/www.ansible.com.crt.2019-03-09@11:22~
'''
from random import randint
import abc
import datetime
import os
import traceback
from distutils.version import LooseVersion
from ansible.module_utils import crypto as crypto_utils
from ansible.module_utils.basic import AnsibleModule, missing_required_lib
from ansible.module_utils._text import to_native, to_bytes, to_text
MINIMAL_CRYPTOGRAPHY_VERSION = '1.6'
MINIMAL_PYOPENSSL_VERSION = '0.15'
PYOPENSSL_IMP_ERR = None
try:
import OpenSSL
from OpenSSL import crypto
PYOPENSSL_VERSION = LooseVersion(OpenSSL.__version__)
except ImportError:
PYOPENSSL_IMP_ERR = traceback.format_exc()
PYOPENSSL_FOUND = False
else:
PYOPENSSL_FOUND = True
CRYPTOGRAPHY_IMP_ERR = None
try:
import cryptography
from cryptography import x509
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives.serialization import Encoding
from cryptography.x509 import NameAttribute, Name
CRYPTOGRAPHY_VERSION = LooseVersion(cryptography.__version__)
except ImportError:
CRYPTOGRAPHY_IMP_ERR = traceback.format_exc()
CRYPTOGRAPHY_FOUND = False
else:
CRYPTOGRAPHY_FOUND = True
class CertificateError(crypto_utils.OpenSSLObjectError):
pass
class Certificate(crypto_utils.OpenSSLObject):
def __init__(self, module, backend):
super(Certificate, self).__init__(
module.params['path'],
module.params['state'],
module.params['force'],
module.check_mode
)
self.provider = module.params['provider']
self.privatekey_path = module.params['privatekey_path']
self.privatekey_passphrase = module.params['privatekey_passphrase']
self.csr_path = module.params['csr_path']
self.cert = None
self.privatekey = None
self.csr = None
self.backend = backend
self.module = module
self.backup = module.params['backup']
self.backup_file = None
def get_relative_time_option(self, input_string, input_name):
"""Return an ASN1 formatted string if a relative timespec
or an ASN1 formatted string is provided."""
result = input_string
if result.startswith("+") or result.startswith("-"):
result_datetime = crypto_utils.convert_relative_to_datetime(
result)
if self.backend == 'pyopenssl':
return result_datetime.strftime("%Y%m%d%H%M%SZ")
elif self.backend == 'cryptography':
return result_datetime
if result is None:
raise CertificateError(
'The timespec "%s" for %s is not valid' %
input_string, input_name)
if self.backend == 'cryptography':
for date_fmt in ['%Y%m%d%H%M%SZ', '%Y%m%d%H%MZ', '%Y%m%d%H%M%S%z', '%Y%m%d%H%M%z']:
try:
result = datetime.datetime.strptime(input_string, date_fmt)
break
except ValueError:
pass
if not isinstance(result, datetime.datetime):
raise CertificateError(
'The time spec "%s" for %s is invalid' %
(input_string, input_name)
)
return result
def _validate_privatekey(self):
if self.backend == 'pyopenssl':
ctx = OpenSSL.SSL.Context(OpenSSL.SSL.TLSv1_2_METHOD)
ctx.use_privatekey(self.privatekey)
ctx.use_certificate(self.cert)
try:
ctx.check_privatekey()
return True
except OpenSSL.SSL.Error:
return False
elif self.backend == 'cryptography':
return self.cert.public_key().public_numbers() == self.privatekey.public_key().public_numbers()
def _validate_csr(self):
if self.backend == 'pyopenssl':
# Verify that CSR is signed by certificate's private key
try:
self.csr.verify(self.cert.get_pubkey())
except OpenSSL.crypto.Error:
return False
# Check subject
if self.csr.get_subject() != self.cert.get_subject():
return False
# Check extensions
csr_extensions = self.csr.get_extensions()
cert_extension_count = self.cert.get_extension_count()
if len(csr_extensions) != cert_extension_count:
return False
for extension_number in range(0, cert_extension_count):
cert_extension = self.cert.get_extension(extension_number)
csr_extension = filter(lambda extension: extension.get_short_name() == cert_extension.get_short_name(), csr_extensions)
if cert_extension.get_data() != list(csr_extension)[0].get_data():
return False
return True
elif self.backend == 'cryptography':
# Verify that CSR is signed by certificate's private key
if not self.csr.is_signature_valid:
return False
if self.csr.public_key().public_numbers() != self.cert.public_key().public_numbers():
return False
# Check subject
if self.csr.subject != self.cert.subject:
return False
# Check extensions
cert_exts = self.cert.extensions
csr_exts = self.csr.extensions
if len(cert_exts) != len(csr_exts):
return False
for cert_ext in cert_exts:
try:
csr_ext = csr_exts.get_extension_for_oid(cert_ext.oid)
if cert_ext != csr_ext:
return False
except cryptography.x509.ExtensionNotFound as dummy:
return False
return True
def remove(self, module):
if self.backup:
self.backup_file = module.backup_local(self.path)
super(Certificate, self).remove(module)
def check(self, module, perms_required=True):
"""Ensure the resource is in its desired state."""
state_and_perms = super(Certificate, self).check(module, perms_required)
if not state_and_perms:
return False
try:
self.cert = crypto_utils.load_certificate(self.path, backend=self.backend)
except Exception as dummy:
return False
if self.privatekey_path:
try:
self.privatekey = crypto_utils.load_privatekey(
self.privatekey_path,
self.privatekey_passphrase,
backend=self.backend
)
except crypto_utils.OpenSSLBadPassphraseError as exc:
raise CertificateError(exc)
return self._validate_privatekey()
if self.csr_path:
self.csr = crypto_utils.load_certificate_request(self.csr_path, backend=self.backend)
if not self._validate_csr():
return False
return True
class CertificateAbsent(Certificate):
def __init__(self, module):
super(CertificateAbsent, self).__init__(module, 'cryptography') # backend doesn't matter
def generate(self, module):
pass
def dump(self, check_mode=False):
# Use only for absent
result = {
'changed': self.changed,
'filename': self.path,
'privatekey': self.privatekey_path,
'csr': self.csr_path
}
if self.backup_file:
result['backup_file'] = self.backup_file
return result
class SelfSignedCertificateCryptography(Certificate):
"""Generate the self-signed certificate, using the cryptography backend"""
def __init__(self, module):
super(SelfSignedCertificateCryptography, self).__init__(module, 'cryptography')
self.notBefore = self.get_relative_time_option(module.params['selfsigned_not_before'], 'selfsigned_not_before')
self.notAfter = self.get_relative_time_option(module.params['selfsigned_not_after'], 'selfsigned_not_after')
self.digest = crypto_utils.select_message_digest(module.params['selfsigned_digest'])
self.version = module.params['selfsigned_version']
self.serial_number = x509.random_serial_number()
self.csr = crypto_utils.load_certificate_request(self.csr_path, backend=self.backend)
self._module = module
try:
self.privatekey = crypto_utils.load_privatekey(
self.privatekey_path, self.privatekey_passphrase, backend=self.backend
)
except crypto_utils.OpenSSLBadPassphraseError as exc:
module.fail_json(msg=to_native(exc))
if self.digest is None:
raise CertificateError(
'The digest %s is not supported with the cryptography backend' % module.params['selfsigned_digest']
)
def generate(self, module):
if not os.path.exists(self.privatekey_path):
raise CertificateError(
'The private key %s does not exist' % self.privatekey_path
)
if not os.path.exists(self.csr_path):
raise CertificateError(
'The certificate signing request file %s does not exist' % self.csr_path
)
if not self.check(module, perms_required=False) or self.force:
try:
cert_builder = x509.CertificateBuilder()
cert_builder = cert_builder.subject_name(self.csr.subject)
cert_builder = cert_builder.issuer_name(self.csr.subject)
cert_builder = cert_builder.serial_number(self.serial_number)
cert_builder = cert_builder.not_valid_before(self.notBefore)
cert_builder = cert_builder.not_valid_after(self.notAfter)
cert_builder = cert_builder.public_key(self.privatekey.public_key())
for extension in self.csr.extensions:
cert_builder = cert_builder.add_extension(extension.value, critical=extension.critical)
except ValueError as e:
raise CertificateError(str(e))
certificate = cert_builder.sign(
private_key=self.privatekey, algorithm=self.digest,
backend=default_backend()
)
self.cert = certificate
if self.backup:
self.backup_file = module.backup_local(self.path)
crypto_utils.write_file(module, certificate.public_bytes(Encoding.PEM))
self.changed = True
else:
self.cert = crypto_utils.load_certificate(self.path, backend=self.backend)
file_args = module.load_file_common_arguments(module.params)
if module.set_fs_attributes_if_different(file_args, False):
self.changed = True
def dump(self, check_mode=False):
result = {
'changed': self.changed,
'filename': self.path,
'privatekey': self.privatekey_path,
'csr': self.csr_path
}
if self.backup_file:
result['backup_file'] = self.backup_file
if check_mode:
result.update({
'notBefore': self.notBefore.strftime("%Y%m%d%H%M%SZ"),
'notAfter': self.notAfter.strftime("%Y%m%d%H%M%SZ"),
'serial_number': self.serial_number,
})
else:
result.update({
'notBefore': self.cert.not_valid_before.strftime("%Y%m%d%H%M%SZ"),
'notAfter': self.cert.not_valid_after.strftime("%Y%m%d%H%M%SZ"),
'serial_number': self.cert.serial_number,
})
return result
class SelfSignedCertificate(Certificate):
"""Generate the self-signed certificate."""
def __init__(self, module):
super(SelfSignedCertificate, self).__init__(module, 'pyopenssl')
self.notBefore = self.get_relative_time_option(module.params['selfsigned_not_before'], 'selfsigned_not_before')
self.notAfter = self.get_relative_time_option(module.params['selfsigned_not_after'], 'selfsigned_not_after')
self.digest = module.params['selfsigned_digest']
self.version = module.params['selfsigned_version']
self.serial_number = randint(1000, 99999)
self.csr = crypto_utils.load_certificate_request(self.csr_path)
try:
self.privatekey = crypto_utils.load_privatekey(
self.privatekey_path, self.privatekey_passphrase
)
except crypto_utils.OpenSSLBadPassphraseError as exc:
module.fail_json(msg=str(exc))
def generate(self, module):
if not os.path.exists(self.privatekey_path):
raise CertificateError(
'The private key %s does not exist' % self.privatekey_path
)
if not os.path.exists(self.csr_path):
raise CertificateError(
'The certificate signing request file %s does not exist' % self.csr_path
)
if not self.check(module, perms_required=False) or self.force:
cert = crypto.X509()
cert.set_serial_number(self.serial_number)
cert.set_notBefore(to_bytes(self.notBefore))
cert.set_notAfter(to_bytes(self.notAfter))
cert.set_subject(self.csr.get_subject())
cert.set_issuer(self.csr.get_subject())
cert.set_version(self.version - 1)
cert.set_pubkey(self.csr.get_pubkey())
cert.add_extensions(self.csr.get_extensions())
cert.sign(self.privatekey, self.digest)
self.cert = cert
if self.backup:
self.backup_file = module.backup_local(self.path)
crypto_utils.write_file(module, crypto.dump_certificate(crypto.FILETYPE_PEM, self.cert))
self.changed = True
file_args = module.load_file_common_arguments(module.params)
if module.set_fs_attributes_if_different(file_args, False):
self.changed = True
def dump(self, check_mode=False):
result = {
'changed': self.changed,
'filename': self.path,
'privatekey': self.privatekey_path,
'csr': self.csr_path
}
if self.backup_file:
result['backup_file'] = self.backup_file
if check_mode:
result.update({
'notBefore': self.notBefore,
'notAfter': self.notAfter,
'serial_number': self.serial_number,
})
else:
result.update({
'notBefore': self.cert.get_notBefore(),
'notAfter': self.cert.get_notAfter(),
'serial_number': self.cert.get_serial_number(),
})
return result
class OwnCACertificateCryptography(Certificate):
"""Generate the own CA certificate. Using the cryptography backend"""
def __init__(self, module):
super(OwnCACertificateCryptography, self).__init__(module, 'cryptography')
self.notBefore = self.get_relative_time_option(module.params['ownca_not_before'], 'ownca_not_before')
self.notAfter = self.get_relative_time_option(module.params['ownca_not_after'], 'ownca_not_after')
self.digest = crypto_utils.select_message_digest(module.params['ownca_digest'])
self.version = module.params['ownca_version']
self.serial_number = x509.random_serial_number()
self.ca_cert_path = module.params['ownca_path']
self.ca_privatekey_path = module.params['ownca_privatekey_path']
self.ca_privatekey_passphrase = module.params['ownca_privatekey_passphrase']
self.csr = crypto_utils.load_certificate_request(self.csr_path, backend=self.backend)
self.ca_cert = crypto_utils.load_certificate(self.ca_cert_path, backend=self.backend)
try:
self.ca_private_key = crypto_utils.load_privatekey(
self.ca_privatekey_path, self.ca_privatekey_passphrase, backend=self.backend
)
except crypto_utils.OpenSSLBadPassphraseError as exc:
module.fail_json(msg=str(exc))
def generate(self, module):
if not os.path.exists(self.ca_cert_path):
raise CertificateError(
'The CA certificate %s does not exist' % self.ca_cert_path
)
if not os.path.exists(self.ca_privatekey_path):
raise CertificateError(
'The CA private key %s does not exist' % self.ca_privatekey_path
)
if not os.path.exists(self.csr_path):
raise CertificateError(
'The certificate signing request file %s does not exist' % self.csr_path
)
if not self.check(module, perms_required=False) or self.force:
cert_builder = x509.CertificateBuilder()
cert_builder = cert_builder.subject_name(self.csr.subject)
cert_builder = cert_builder.issuer_name(self.ca_cert.subject)
cert_builder = cert_builder.serial_number(self.serial_number)
cert_builder = cert_builder.not_valid_before(self.notBefore)
cert_builder = cert_builder.not_valid_after(self.notAfter)
cert_builder = cert_builder.public_key(self.csr.public_key())
for extension in self.csr.extensions:
cert_builder = cert_builder.add_extension(extension.value, critical=extension.critical)
certificate = cert_builder.sign(
private_key=self.ca_private_key, algorithm=self.digest,
backend=default_backend()
)
self.cert = certificate
if self.backup:
self.backup_file = module.backup_local(self.path)
crypto_utils.write_file(module, certificate.public_bytes(Encoding.PEM))
self.changed = True
else:
self.cert = crypto_utils.load_certificate(self.path, backend=self.backend)
file_args = module.load_file_common_arguments(module.params)
if module.set_fs_attributes_if_different(file_args, False):
self.changed = True
def dump(self, check_mode=False):
result = {
'changed': self.changed,
'filename': self.path,
'privatekey': self.privatekey_path,
'csr': self.csr_path,
'ca_cert': self.ca_cert_path,
'ca_privatekey': self.ca_privatekey_path
}
if self.backup_file:
result['backup_file'] = self.backup_file
if check_mode:
result.update({
'notBefore': self.notBefore.strftime("%Y%m%d%H%M%SZ"),
'notAfter': self.notAfter.strftime("%Y%m%d%H%M%SZ"),
'serial_number': self.serial_number,
})
else:
result.update({
'notBefore': self.cert.not_valid_before.strftime("%Y%m%d%H%M%SZ"),
'notAfter': self.cert.not_valid_after.strftime("%Y%m%d%H%M%SZ"),
'serial_number': self.cert.serial_number,
})
return result
class OwnCACertificate(Certificate):
"""Generate the own CA certificate."""
def __init__(self, module):
super(OwnCACertificate, self).__init__(module, 'pyopenssl')
self.notBefore = self.get_relative_time_option(module.params['ownca_not_before'], 'ownca_not_before')
self.notAfter = self.get_relative_time_option(module.params['ownca_not_after'], 'ownca_not_after')
self.digest = module.params['ownca_digest']
self.version = module.params['ownca_version']
self.serial_number = randint(1000, 99999)
self.ca_cert_path = module.params['ownca_path']
self.ca_privatekey_path = module.params['ownca_privatekey_path']
self.ca_privatekey_passphrase = module.params['ownca_privatekey_passphrase']
self.csr = crypto_utils.load_certificate_request(self.csr_path)
self.ca_cert = crypto_utils.load_certificate(self.ca_cert_path)
try:
self.ca_privatekey = crypto_utils.load_privatekey(
self.ca_privatekey_path, self.ca_privatekey_passphrase
)
except crypto_utils.OpenSSLBadPassphraseError as exc:
module.fail_json(msg=str(exc))
def generate(self, module):
if not os.path.exists(self.ca_cert_path):
raise CertificateError(
'The CA certificate %s does not exist' % self.ca_cert_path
)
if not os.path.exists(self.ca_privatekey_path):
raise CertificateError(
'The CA private key %s does not exist' % self.ca_privatekey_path
)
if not os.path.exists(self.csr_path):
raise CertificateError(
'The certificate signing request file %s does not exist' % self.csr_path
)
if not self.check(module, perms_required=False) or self.force:
cert = crypto.X509()
cert.set_serial_number(self.serial_number)
cert.set_notBefore(to_bytes(self.notBefore))
cert.set_notAfter(to_bytes(self.notAfter))
cert.set_subject(self.csr.get_subject())
cert.set_issuer(self.ca_cert.get_subject())
cert.set_version(self.version - 1)
cert.set_pubkey(self.csr.get_pubkey())
cert.add_extensions(self.csr.get_extensions())
cert.sign(self.ca_privatekey, self.digest)
self.cert = cert
if self.backup:
self.backup_file = module.backup_local(self.path)
crypto_utils.write_file(module, crypto.dump_certificate(crypto.FILETYPE_PEM, self.cert))
self.changed = True
file_args = module.load_file_common_arguments(module.params)
if module.set_fs_attributes_if_different(file_args, False):
self.changed = True
def dump(self, check_mode=False):
result = {
'changed': self.changed,
'filename': self.path,
'privatekey': self.privatekey_path,
'csr': self.csr_path,
'ca_cert': self.ca_cert_path,
'ca_privatekey': self.ca_privatekey_path
}
if self.backup_file:
result['backup_file'] = self.backup_file
if check_mode:
result.update({
'notBefore': self.notBefore,
'notAfter': self.notAfter,
'serial_number': self.serial_number,
})
else:
result.update({
'notBefore': self.cert.get_notBefore(),
'notAfter': self.cert.get_notAfter(),
'serial_number': self.cert.get_serial_number(),
})
return result
def compare_sets(subset, superset, equality=False):
if equality:
return set(subset) == set(superset)
else:
return all(x in superset for x in subset)
def compare_dicts(subset, superset, equality=False):
if equality:
return subset == superset
else:
return all(superset.get(x) == v for x, v in subset.items())
NO_EXTENSION = 'no extension'
class AssertOnlyCertificateBase(Certificate):
def __init__(self, module, backend):
super(AssertOnlyCertificateBase, self).__init__(module, backend)
self.signature_algorithms = module.params['signature_algorithms']
if module.params['subject']:
self.subject = crypto_utils.parse_name_field(module.params['subject'])
else:
self.subject = []
self.subject_strict = module.params['subject_strict']
if module.params['issuer']:
self.issuer = crypto_utils.parse_name_field(module.params['issuer'])
else:
self.issuer = []
self.issuer_strict = module.params['issuer_strict']
self.has_expired = module.params['has_expired']
self.version = module.params['version']
self.key_usage = module.params['key_usage']
self.key_usage_strict = module.params['key_usage_strict']
self.extended_key_usage = module.params['extended_key_usage']
self.extended_key_usage_strict = module.params['extended_key_usage_strict']
self.subject_alt_name = module.params['subject_alt_name']
self.subject_alt_name_strict = module.params['subject_alt_name_strict']
self.not_before = module.params['not_before']
self.not_after = module.params['not_after']
self.valid_at = module.params['valid_at']
self.invalid_at = module.params['invalid_at']
self.valid_in = module.params['valid_in']
if self.valid_in and not self.valid_in.startswith("+") and not self.valid_in.startswith("-"):
try:
int(self.valid_in)
except ValueError:
module.fail_json(msg='The supplied value for "valid_in" (%s) is not an integer or a valid timespec' % self.valid_in)
self.valid_in = "+" + self.valid_in + "s"
# Load objects
self.cert = crypto_utils.load_certificate(self.path, backend=self.backend)
if self.privatekey_path is not None:
try:
self.privatekey = crypto_utils.load_privatekey(
self.privatekey_path,
self.privatekey_passphrase,
backend=self.backend
)
except crypto_utils.OpenSSLBadPassphraseError as exc:
raise CertificateError(exc)
if self.csr_path is not None:
self.csr = crypto_utils.load_certificate_request(self.csr_path, backend=self.backend)
@abc.abstractmethod
def _validate_privatekey(self):
pass
@abc.abstractmethod
def _validate_csr_signature(self):
pass
@abc.abstractmethod
def _validate_csr_subject(self):
pass
@abc.abstractmethod
def _validate_csr_extensions(self):
pass
@abc.abstractmethod
def _validate_signature_algorithms(self):
pass
@abc.abstractmethod
def _validate_subject(self):
pass
@abc.abstractmethod
def _validate_issuer(self):
pass
@abc.abstractmethod
def _validate_has_expired(self):
pass
@abc.abstractmethod
def _validate_version(self):
pass
@abc.abstractmethod
def _validate_key_usage(self):
pass
@abc.abstractmethod
def _validate_extended_key_usage(self):
pass
@abc.abstractmethod
def _validate_subject_alt_name(self):
pass
@abc.abstractmethod
def _validate_not_before(self):
pass
@abc.abstractmethod
def _validate_not_after(self):
pass
@abc.abstractmethod
def _validate_valid_at(self):
pass
@abc.abstractmethod
def _validate_invalid_at(self):
pass
@abc.abstractmethod
def _validate_valid_in(self):
pass
def assertonly(self, module):
messages = []
if self.privatekey_path is not None:
if not self._validate_privatekey():
messages.append(
'Certificate %s and private key %s do not match' %
(self.path, self.privatekey_path)
)
if self.csr_path is not None:
if not self._validate_csr_signature():
messages.append(
'Certificate %s and CSR %s do not match: private key mismatch' %
(self.path, self.csr_path)
)
if not self._validate_csr_subject():
messages.append(
'Certificate %s and CSR %s do not match: subject mismatch' %
(self.path, self.csr_path)
)
if not self._validate_csr_extensions():
messages.append(
'Certificate %s and CSR %s do not match: extensions mismatch' %
(self.path, self.csr_path)
)
if self.signature_algorithms is not None:
wrong_alg = self._validate_signature_algorithms()
if wrong_alg:
messages.append(
'Invalid signature algorithm (got %s, expected one of %s)' %
(wrong_alg, self.signature_algorithms)
)
if self.subject is not None:
failure = self._validate_subject()
if failure:
dummy, cert_subject = failure
messages.append(
'Invalid subject component (got %s, expected all of %s to be present)' %
(cert_subject, self.subject)
)
if self.issuer is not None:
failure = self._validate_issuer()
if failure:
dummy, cert_issuer = failure
messages.append(
'Invalid issuer component (got %s, expected all of %s to be present)' % (cert_issuer, self.issuer)
)
if self.has_expired is not None:
cert_expired = self._validate_has_expired()
if cert_expired != self.has_expired:
messages.append(
'Certificate expiration check failed (certificate expiration is %s, expected %s)' %
(cert_expired, self.has_expired)
)
if self.version is not None:
cert_version = self._validate_version()
if cert_version != self.version:
messages.append(
'Invalid certificate version number (got %s, expected %s)' %
(cert_version, self.version)
)
if self.key_usage is not None:
failure = self._validate_key_usage()
if failure == NO_EXTENSION:
messages.append('Found no keyUsage extension')
elif failure:
dummy, cert_key_usage = failure
messages.append(
'Invalid keyUsage components (got %s, expected all of %s to be present)' %
(cert_key_usage, self.key_usage)
)
if self.extended_key_usage is not None:
failure = self._validate_extended_key_usage()
if failure == NO_EXTENSION:
messages.append('Found no extendedKeyUsage extension')
elif failure:
dummy, ext_cert_key_usage = failure
messages.append(
'Invalid extendedKeyUsage component (got %s, expected all of %s to be present)' % (ext_cert_key_usage, self.extended_key_usage)
)
if self.subject_alt_name is not None:
failure = self._validate_subject_alt_name()
if failure == NO_EXTENSION:
messages.append('Found no subjectAltName extension')
elif failure:
dummy, cert_san = failure
messages.append(
'Invalid subjectAltName component (got %s, expected all of %s to be present)' %
(cert_san, self.subject_alt_name)
)
if self.not_before is not None:
cert_not_valid_before = self._validate_not_before()
if cert_not_valid_before != self.get_relative_time_option(self.not_before, 'not_before'):
messages.append(
'Invalid not_before component (got %s, expected %s to be present)' %
(cert_not_valid_before, self.not_before)
)
if self.not_after is not None:
cert_not_valid_after = self._validate_not_after()
if cert_not_valid_after != self.get_relative_time_option(self.not_after, 'not_after'):
messages.append(
'Invalid not_after component (got %s, expected %s to be present)' %
(cert_not_valid_after, self.not_after)
)
if self.valid_at is not None:
not_before, valid_at, not_after = self._validate_valid_at()
if not (not_before <= valid_at <= not_after):
messages.append(
'Certificate is not valid for the specified date (%s) - not_before: %s - not_after: %s' %
(self.valid_at, not_before, not_after)
)
if self.invalid_at is not None:
not_before, invalid_at, not_after = self._validate_invalid_at()
if (invalid_at <= not_before) or (invalid_at >= not_after):
messages.append(
'Certificate is not invalid for the specified date (%s) - not_before: %s - not_after: %s' %
(self.invalid_at, not_before, not_after)
)
if self.valid_in is not None:
not_before, valid_in, not_after = self._validate_valid_in()
if not not_before <= valid_in <= not_after:
messages.append(
'Certificate is not valid in %s from now (that would be %s) - not_before: %s - not_after: %s' %
(self.valid_in, valid_in, not_before, not_after)
)
return messages
def generate(self, module):
"""Don't generate anything - only assert"""
messages = self.assertonly(module)
if messages:
module.fail_json(msg=' | '.join(messages))
def check(self, module, perms_required=False):
"""Ensure the resource is in its desired state."""
messages = self.assertonly(module)
return len(messages) == 0
def dump(self, check_mode=False):
result = {
'changed': self.changed,
'filename': self.path,
'privatekey': self.privatekey_path,
'csr': self.csr_path,
}
return result
class AssertOnlyCertificateCryptography(AssertOnlyCertificateBase):
"""Validate the supplied cert, using the cryptography backend"""
def __init__(self, module):
super(AssertOnlyCertificateCryptography, self).__init__(module, 'cryptography')
def _validate_privatekey(self):
return self.cert.public_key().public_numbers() == self.privatekey.public_key().public_numbers()
def _validate_csr_signature(self):
if not self.csr.is_signature_valid:
return False
if self.csr.public_key().public_numbers() != self.cert.public_key().public_numbers():
return False
def _validate_csr_subject(self):
if self.csr.subject != self.cert.subject:
return False
def _validate_csr_extensions(self):
cert_exts = self.cert.extensions
csr_exts = self.csr.extensions
if len(cert_exts) != len(csr_exts):
return False
for cert_ext in cert_exts:
try:
csr_ext = csr_exts.get_extension_for_oid(cert_ext.oid)
if cert_ext != csr_ext:
return False
except cryptography.x509.ExtensionNotFound as dummy:
return False
return True
def _validate_signature_algorithms(self):
if self.cert.signature_algorithm_oid._name not in self.signature_algorithms:
return self.cert.signature_algorithm_oid._name
def _validate_subject(self):
expected_subject = Name([NameAttribute(oid=crypto_utils.cryptography_name_to_oid(sub[0]), value=to_text(sub[1]))
for sub in self.subject])
cert_subject = self.cert.subject
if not compare_sets(expected_subject, cert_subject, self.subject_strict):
return expected_subject, cert_subject
def _validate_issuer(self):
expected_issuer = Name([NameAttribute(oid=crypto_utils.cryptography_name_to_oid(iss[0]), value=to_text(iss[1]))
for iss in self.issuer])
cert_issuer = self.cert.issuer
if not compare_sets(expected_issuer, cert_issuer, self.issuer_strict):
return self.issuer, cert_issuer
def _validate_has_expired(self):
cert_not_after = self.cert.not_valid_after
cert_expired = cert_not_after < datetime.datetime.utcnow()
return cert_expired
def _validate_version(self):
if self.cert.version == x509.Version.v1:
return 1
if self.cert.version == x509.Version.v3:
return 3
return "unknown"
def _validate_key_usage(self):
try:
current_key_usage = self.cert.extensions.get_extension_for_class(x509.KeyUsage).value
test_key_usage = dict(
digital_signature=current_key_usage.digital_signature,
content_commitment=current_key_usage.content_commitment,
key_encipherment=current_key_usage.key_encipherment,
data_encipherment=current_key_usage.data_encipherment,
key_agreement=current_key_usage.key_agreement,
key_cert_sign=current_key_usage.key_cert_sign,
crl_sign=current_key_usage.crl_sign,
encipher_only=False,
decipher_only=False
)
if test_key_usage['key_agreement']:
test_key_usage.update(dict(
encipher_only=current_key_usage.encipher_only,
decipher_only=current_key_usage.decipher_only
))
key_usages = crypto_utils.cryptography_parse_key_usage_params(self.key_usage)
if not compare_dicts(key_usages, test_key_usage, self.key_usage_strict):
return self.key_usage, [x for x in test_key_usage if x is True]
except cryptography.x509.ExtensionNotFound:
# This is only bad if the user specified a non-empty list
if self.key_usage:
return NO_EXTENSION
def _validate_extended_key_usage(self):
try:
current_ext_keyusage = self.cert.extensions.get_extension_for_class(x509.ExtendedKeyUsage).value
usages = [crypto_utils.cryptography_name_to_oid(usage) for usage in self.extended_key_usage]
expected_ext_keyusage = x509.ExtendedKeyUsage(usages)
if not compare_sets(expected_ext_keyusage, current_ext_keyusage, self.extended_key_usage_strict):
return [eku.value for eku in expected_ext_keyusage], [eku.value for eku in current_ext_keyusage]
except cryptography.x509.ExtensionNotFound:
# This is only bad if the user specified a non-empty list
if self.extended_key_usage:
return NO_EXTENSION
def _validate_subject_alt_name(self):
try:
current_san = self.cert.extensions.get_extension_for_class(x509.SubjectAlternativeName).value
expected_san = [crypto_utils.cryptography_get_name(san) for san in self.subject_alt_name]
if not compare_sets(expected_san, current_san, self.subject_alt_name_strict):
return self.subject_alt_name, current_san
except cryptography.x509.ExtensionNotFound:
# This is only bad if the user specified a non-empty list
if self.subject_alt_name:
return NO_EXTENSION
def _validate_not_before(self):
return self.cert.not_valid_before
def _validate_not_after(self):
return self.cert.not_valid_after
def _validate_valid_at(self):
rt = self.get_relative_time_option(self.valid_at, 'valid_at')
return self.cert.not_valid_before, rt, self.cert.not_valid_after
def _validate_invalid_at(self):
rt = self.get_relative_time_option(self.valid_at, 'valid_at')
return self.cert.not_valid_before, rt, self.cert.not_valid_after
def _validate_valid_in(self):
valid_in_date = self.get_relative_time_option(self.valid_in, "valid_in")
return self.cert.not_valid_before, valid_in_date, self.cert.not_valid_after
class AssertOnlyCertificate(AssertOnlyCertificateBase):
"""validate the supplied certificate."""
def __init__(self, module):
super(AssertOnlyCertificate, self).__init__(module, 'pyopenssl')
# Ensure inputs are properly sanitized before comparison.
for param in ['signature_algorithms', 'key_usage', 'extended_key_usage',
'subject_alt_name', 'subject', 'issuer', 'not_before',
'not_after', 'valid_at', 'invalid_at']:
attr = getattr(self, param)
if isinstance(attr, list) and attr:
if isinstance(attr[0], str):
setattr(self, param, [to_bytes(item) for item in attr])
elif isinstance(attr[0], tuple):
setattr(self, param, [(to_bytes(item[0]), to_bytes(item[1])) for item in attr])
elif isinstance(attr, tuple):
setattr(self, param, dict((to_bytes(k), to_bytes(v)) for (k, v) in attr.items()))
elif isinstance(attr, dict):
setattr(self, param, dict((to_bytes(k), to_bytes(v)) for (k, v) in attr.items()))
elif isinstance(attr, str):
setattr(self, param, to_bytes(attr))
def _validate_privatekey(self):
ctx = OpenSSL.SSL.Context(OpenSSL.SSL.TLSv1_2_METHOD)
ctx.use_privatekey(self.privatekey)
ctx.use_certificate(self.cert)
try:
ctx.check_privatekey()
return True
except OpenSSL.SSL.Error:
return False
def _validate_csr_signature(self):
try:
self.csr.verify(self.cert.get_pubkey())
except OpenSSL.crypto.Error:
return False
def _validate_csr_subject(self):
if self.csr.get_subject() != self.cert.get_subject():
return False
def _validate_csr_extensions(self):
csr_extensions = self.csr.get_extensions()
cert_extension_count = self.cert.get_extension_count()
if len(csr_extensions) != cert_extension_count:
return False
for extension_number in range(0, cert_extension_count):
cert_extension = self.cert.get_extension(extension_number)
csr_extension = filter(lambda extension: extension.get_short_name() == cert_extension.get_short_name(), csr_extensions)
if cert_extension.get_data() != list(csr_extension)[0].get_data():
return False
return True
def _validate_signature_algorithms(self):
if self.cert.get_signature_algorithm() not in self.signature_algorithms:
return self.cert.get_signature_algorithm()
def _validate_subject(self):
expected_subject = [(OpenSSL._util.lib.OBJ_txt2nid(sub[0]), sub[1]) for sub in self.subject]
cert_subject = self.cert.get_subject().get_components()
current_subject = [(OpenSSL._util.lib.OBJ_txt2nid(sub[0]), sub[1]) for sub in cert_subject]
if not compare_sets(expected_subject, current_subject, self.subject_strict):
return expected_subject, current_subject
def _validate_issuer(self):
expected_issuer = [(OpenSSL._util.lib.OBJ_txt2nid(iss[0]), iss[1]) for iss in self.issuer]
cert_issuer = self.cert.get_issuer().get_components()
current_issuer = [(OpenSSL._util.lib.OBJ_txt2nid(iss[0]), iss[1]) for iss in cert_issuer]
if not compare_sets(expected_issuer, current_issuer, self.issuer_strict):
return self.issuer, cert_issuer
def _validate_has_expired(self):
# The following 3 lines are the same as the current PyOpenSSL code for cert.has_expired().
# Older version of PyOpenSSL have a buggy implementation,
# to avoid issues with those we added the code from a more recent release here.
time_string = to_native(self.cert.get_notAfter())
not_after = datetime.datetime.strptime(time_string, "%Y%m%d%H%M%SZ")
cert_expired = not_after < datetime.datetime.utcnow()
return cert_expired
def _validate_version(self):
# Version numbers in certs are off by one:
# v1: 0, v2: 1, v3: 2 ...
return self.cert.get_version() + 1
def _validate_key_usage(self):
found = False
for extension_idx in range(0, self.cert.get_extension_count()):
extension = self.cert.get_extension(extension_idx)
if extension.get_short_name() == b'keyUsage':
found = True
key_usage = [OpenSSL._util.lib.OBJ_txt2nid(key_usage) for key_usage in self.key_usage]
current_ku = [OpenSSL._util.lib.OBJ_txt2nid(usage.strip()) for usage in
to_bytes(extension, errors='surrogate_or_strict').split(b',')]
if not compare_sets(key_usage, current_ku, self.key_usage_strict):
return self.key_usage, str(extension).split(', ')
if not found:
# This is only bad if the user specified a non-empty list
if self.key_usage:
return NO_EXTENSION
def _validate_extended_key_usage(self):
found = False
for extension_idx in range(0, self.cert.get_extension_count()):
extension = self.cert.get_extension(extension_idx)
if extension.get_short_name() == b'extendedKeyUsage':
found = True
extKeyUsage = [OpenSSL._util.lib.OBJ_txt2nid(keyUsage) for keyUsage in self.extended_key_usage]
current_xku = [OpenSSL._util.lib.OBJ_txt2nid(usage.strip()) for usage in
to_bytes(extension, errors='surrogate_or_strict').split(b',')]
if not compare_sets(extKeyUsage, current_xku, self.extended_key_usage_strict):
return self.extended_key_usage, str(extension).split(', ')
if not found:
# This is only bad if the user specified a non-empty list
if self.extended_key_usage:
return NO_EXTENSION
def _validate_subject_alt_name(self):
found = False
for extension_idx in range(0, self.cert.get_extension_count()):
extension = self.cert.get_extension(extension_idx)
if extension.get_short_name() == b'subjectAltName':
found = True
l_altnames = [altname.replace(b'IP Address', b'IP') for altname in
to_bytes(extension, errors='surrogate_or_strict').split(b', ')]
if not compare_sets(self.subject_alt_name, l_altnames, self.subject_alt_name_strict):
return self.subject_alt_name, l_altnames
if not found:
# This is only bad if the user specified a non-empty list
if self.subject_alt_name:
return NO_EXTENSION
def _validate_not_before(self):
return self.cert.get_notBefore()
def _validate_not_after(self):
return self.cert.get_notAfter()
def _validate_valid_at(self):
return self.cert.get_notBefore(), self.valid_at, self.cert.get_notAfter()
def _validate_invalid_at(self):
return self.cert.get_notBefore(), self.valid_at, self.cert.get_notAfter()
def _validate_valid_in(self):
valid_in_asn1 = self.get_relative_time_option(self.valid_in, "valid_in")
valid_in_date = to_bytes(valid_in_asn1, errors='surrogate_or_strict')
return self.cert.get_notBefore(), valid_in_date, self.cert.get_notAfter()
class AcmeCertificate(Certificate):
"""Retrieve a certificate using the ACME protocol."""
# Since there's no real use of the backend,
# other than the 'self.check' function, we just pass the backend to the constructor
def __init__(self, module, backend):
super(AcmeCertificate, self).__init__(module, backend)
self.accountkey_path = module.params['acme_accountkey_path']
self.challenge_path = module.params['acme_challenge_path']
self.use_chain = module.params['acme_chain']
def generate(self, module):
if not os.path.exists(self.privatekey_path):
raise CertificateError(
'The private key %s does not exist' % self.privatekey_path
)
if not os.path.exists(self.csr_path):
raise CertificateError(
'The certificate signing request file %s does not exist' % self.csr_path
)
if not os.path.exists(self.accountkey_path):
raise CertificateError(
'The account key %s does not exist' % self.accountkey_path
)
if not os.path.exists(self.challenge_path):
raise CertificateError(
'The challenge path %s does not exist' % self.challenge_path
)
if not self.check(module, perms_required=False) or self.force:
acme_tiny_path = self.module.get_bin_path('acme-tiny', required=True)
command = [acme_tiny_path]
if self.use_chain:
command.append('--chain')
command.extend(['--account-key', self.accountkey_path])
command.extend(['--csr', self.csr_path])
command.extend(['--acme-dir', self.challenge_path])
try:
crt = module.run_command(command, check_rc=True)[1]
if self.backup:
self.backup_file = module.backup_local(self.path)
crypto_utils.write_file(module, to_bytes(crt))
self.changed = True
except OSError as exc:
raise CertificateError(exc)
file_args = module.load_file_common_arguments(module.params)
if module.set_fs_attributes_if_different(file_args, False):
self.changed = True
def dump(self, check_mode=False):
result = {
'changed': self.changed,
'filename': self.path,
'privatekey': self.privatekey_path,
'accountkey': self.accountkey_path,
'csr': self.csr_path,
}
if self.backup_file:
result['backup_file'] = self.backup_file
return result
def main():
module = AnsibleModule(
argument_spec=dict(
state=dict(type='str', default='present', choices=['present', 'absent']),
path=dict(type='path', required=True),
provider=dict(type='str', choices=['acme', 'assertonly', 'ownca', 'selfsigned']),
force=dict(type='bool', default=False,),
csr_path=dict(type='path'),
backup=dict(type='bool', default=False),
select_crypto_backend=dict(type='str', default='auto', choices=['auto', 'cryptography', 'pyopenssl']),
# General properties of a certificate
privatekey_path=dict(type='path'),
privatekey_passphrase=dict(type='str', no_log=True),
# provider: assertonly
signature_algorithms=dict(type='list', elements='str'),
subject=dict(type='dict'),
subject_strict=dict(type='bool', default=False),
issuer=dict(type='dict'),
issuer_strict=dict(type='bool', default=False),
has_expired=dict(type='bool', default=False),
version=dict(type='int'),
key_usage=dict(type='list', elements='str', aliases=['keyUsage']),
key_usage_strict=dict(type='bool', default=False, aliases=['keyUsage_strict']),
extended_key_usage=dict(type='list', elements='str', aliases=['extendedKeyUsage']),
extended_key_usage_strict=dict(type='bool', default=False, aliases=['extendedKeyUsage_strict']),
subject_alt_name=dict(type='list', elements='str', aliases=['subjectAltName']),
subject_alt_name_strict=dict(type='bool', default=False, aliases=['subjectAltName_strict']),
not_before=dict(type='str', aliases=['notBefore']),
not_after=dict(type='str', aliases=['notAfter']),
valid_at=dict(type='str'),
invalid_at=dict(type='str'),
valid_in=dict(type='str'),
# provider: selfsigned
selfsigned_version=dict(type='int', default=3),
selfsigned_digest=dict(type='str', default='sha256'),
selfsigned_not_before=dict(type='str', default='+0s', aliases=['selfsigned_notBefore']),
selfsigned_not_after=dict(type='str', default='+3650d', aliases=['selfsigned_notAfter']),
# provider: ownca
ownca_path=dict(type='path'),
ownca_privatekey_path=dict(type='path'),
ownca_privatekey_passphrase=dict(type='str', no_log=True),
ownca_digest=dict(type='str', default='sha256'),
ownca_version=dict(type='int', default=3),
ownca_not_before=dict(type='str', default='+0s'),
ownca_not_after=dict(type='str', default='+3650d'),
# provider: acme
acme_accountkey_path=dict(type='path'),
acme_challenge_path=dict(type='path'),
acme_chain=dict(type='bool', default=False),
),
supports_check_mode=True,
add_file_common_args=True,
)
try:
if module.params['state'] == 'absent':
certificate = CertificateAbsent(module)
else:
if module.params['provider'] != 'assertonly' and module.params['csr_path'] is None:
module.fail_json(msg='csr_path is required when provider is not assertonly')
base_dir = os.path.dirname(module.params['path']) or '.'
if not os.path.isdir(base_dir):
module.fail_json(
name=base_dir,
msg='The directory %s does not exist or the file is not a directory' % base_dir
)
provider = module.params['provider']
backend = module.params['select_crypto_backend']
if backend == 'auto':
# Detect what backend we can use
can_use_cryptography = CRYPTOGRAPHY_FOUND and CRYPTOGRAPHY_VERSION >= LooseVersion(MINIMAL_CRYPTOGRAPHY_VERSION)
can_use_pyopenssl = PYOPENSSL_FOUND and PYOPENSSL_VERSION >= LooseVersion(MINIMAL_PYOPENSSL_VERSION)
# If cryptography is available we'll use it
if can_use_cryptography:
backend = 'cryptography'
elif can_use_pyopenssl:
backend = 'pyopenssl'
if module.params['selfsigned_version'] == 2 or module.params['ownca_version'] == 2:
module.warn('crypto backend forced to pyopenssl. The cryptography library does not support v2 certificates')
backend = 'pyopenssl'
# Fail if no backend has been found
if backend == 'auto':
module.fail_json(msg=("Can't detect any of the required Python libraries "
"cryptography (>= {0}) or PyOpenSSL (>= {1})").format(
MINIMAL_CRYPTOGRAPHY_VERSION,
MINIMAL_PYOPENSSL_VERSION))
if backend == 'pyopenssl':
if not PYOPENSSL_FOUND:
module.fail_json(msg=missing_required_lib('pyOpenSSL'), exception=PYOPENSSL_IMP_ERR)
if module.params['provider'] in ['selfsigned', 'ownca', 'assertonly']:
try:
getattr(crypto.X509Req, 'get_extensions')
except AttributeError:
module.fail_json(msg='You need to have PyOpenSSL>=0.15')
if provider == 'selfsigned':
certificate = SelfSignedCertificate(module)
elif provider == 'acme':
certificate = AcmeCertificate(module, 'pyopenssl')
elif provider == 'ownca':
certificate = OwnCACertificate(module)
else:
certificate = AssertOnlyCertificate(module)
elif backend == 'cryptography':
if not CRYPTOGRAPHY_FOUND:
module.fail_json(msg=missing_required_lib('cryptography'), exception=CRYPTOGRAPHY_IMP_ERR)
if module.params['selfsigned_version'] == 2 or module.params['ownca_version'] == 2:
module.fail_json(msg='The cryptography backend does not support v2 certificates, '
'use select_crypto_backend=pyopenssl for v2 certificates')
if provider == 'selfsigned':
certificate = SelfSignedCertificateCryptography(module)
elif provider == 'acme':
certificate = AcmeCertificate(module, 'cryptography')
elif provider == 'ownca':
certificate = OwnCACertificateCryptography(module)
else:
certificate = AssertOnlyCertificateCryptography(module)
if module.params['state'] == 'present':
if module.check_mode:
result = certificate.dump(check_mode=True)
result['changed'] = module.params['force'] or not certificate.check(module)
module.exit_json(**result)
certificate.generate(module)
else:
if module.check_mode:
result = certificate.dump(check_mode=True)
result['changed'] = os.path.exists(module.params['path'])
module.exit_json(**result)
certificate.remove(module)
result = certificate.dump()
module.exit_json(**result)
except crypto_utils.OpenSSLObjectError as exc:
module.fail_json(msg=to_native(exc))
if __name__ == "__main__":
main()