#!/usr/bin/python # -*- coding: utf-8 -*- # Copyright: (c) 2016-2017, Yanis Guenane # Copyright: (c) 2017, Markus Teufelberger # 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://: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()