#!/usr/bin/python # -*- coding: utf-8 -*- # (c) 2016-2017, Yanis Guenane # (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 = ''' --- module: openssl_certificate author: - Yanis Guenane (@Spredzy) - Markus Teufelberger (@MarkusTeufelberger) 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 'assertonly' provider is intended for use cases where one is only interested in checking properties of a supplied certificate. The '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). It uses the pyOpenSSL python library to interact with OpenSSL." requirements: - python-pyOpenSSL >= 0.15 (if using C(selfsigned) or C(assertonly) provider) - acme-tiny (if using the C(acme) provider) options: state: default: "present" choices: [ present, absent ] description: - Whether the certificate should exist or not, taking action if the state is different from what is stated. path: required: true description: - Remote absolute path where the generated certificate file should be created or is already located. provider: required: true choices: [ 'selfsigned', 'ownca', 'assertonly', 'acme' ] 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. force: default: False type: bool description: - Generate the certificate, even if it already exists. csr_path: description: - Path to the Certificate Signing Request (CSR) used to generate this certificate. This is not required in C(assertonly) mode. privatekey_path: description: - Path to the private key to use when signing the certificate. privatekey_passphrase: description: - The passphrase for the I(privatekey_path). - This is required if the private key is password protected. selfsigned_version: default: 3 description: - Version of the C(selfsigned) certificate. - Nowadays it should almost always be C(3). - This is only used by the C(selfsigned) provider. version_added: "2.5" selfsigned_digest: default: "sha256" description: - Digest algorithm to be used when self-signing the certificate - This is only used by the C(selfsigned) provider. selfsigned_not_before: description: - The timestamp at which the certificate starts being valid. The timestamp is formatted as an ASN.1 TIME. If this value is not specified, certificate will start being valid from now. - This is only used by the C(selfsigned) provider. aliases: [ selfsigned_notBefore ] selfsigned_not_after: description: - The timestamp at which the certificate stops being valid. The timestamp is formatted as an ASN.1 TIME. If this value is not specified, certificate will stop being valid 10 years from now. - This is only used by the C(selfsigned) provider. aliases: [ selfsigned_notAfter ] ownca_path: description: - Remote absolute path of the CA (Certificate Authority) certificate. - This is only used by the C(ownca) provider. 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. 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. version_added: "2.7" ownca_digest: default: "sha256" description: - Digest algorithm to be used for the C(ownca) certificate. - This is only used by the C(ownca) provider. version_added: "2.7" ownca_version: default: 3 description: - Version of the C(ownca) certificate. - Nowadays it should almost always be C(3). - This is only used by the C(ownca) provider. version_added: "2.7" ownca_not_before: description: - The timestamp at which the certificate starts being valid. The timestamp is formatted as an ASN.1 TIME. If this value is not specified, certificate will start being valid from now. - This is only used by the C(ownca) provider. version_added: "2.7" ownca_not_after: description: - The timestamp at which the certificate stops being valid. The timestamp is formatted as an ASN.1 TIME. If this value is not specified, certificate will stop being valid 10 years from now. - This is only used by the C(ownca) provider. version_added: "2.7" acme_accountkey_path: description: - Path to the accountkey for the C(acme) provider - This is only used by the C(acme) provider. acme_challenge_path: description: - 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. acme_chain: default: True description: - Include the intermediate certificate to the generated certificate - This is only used by the C(acme) provider. version_added: "2.5" signature_algorithms: description: - 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. issuer: description: - 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. issuer_strict: default: False type: bool description: - If set to True, the I(issuer) field must contain only these values. - This is only used by the C(assertonly) provider. version_added: "2.5" subject: description: - 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. subject_strict: default: False type: bool description: - If set to True, the I(subject) field must contain only these values. - This is only used by the C(assertonly) provider. 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. 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. 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. 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. 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. aliases: [ notAfter ] valid_in: description: - The certificate must still be valid in I(valid_in) seconds from now. - This is only used by the C(assertonly) provider. key_usage: description: - The I(key_usage) extension field must contain all these values. - This is only used by the C(assertonly) provider. aliases: [ keyUsage ] key_usage_strict: default: False type: bool description: - If set to True, the I(key_usage) extension field must contain only these values. - This is only used by the C(assertonly) provider. 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. aliases: [ extendedKeyUsage ] extended_key_usage_strict: default: False type: bool description: - If set to True, the I(extended_key_usage) extension field must contain only these values. - This is only used by the C(assertonly) provider. 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. aliases: [ subjectAltName ] subject_alt_name_strict: default: False type: bool description: - If set to True, the I(subject_alt_name) extension field must contain only these values. - This is only used by the C(assertonly) provider. aliases: [ subjectAltName_strict ] 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. ''' EXAMPLES = ''' - 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: True # 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: False ignore_errors: True 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: False 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: False - 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 = ''' filename: description: Path to the generated Certificate returned: changed or success type: string sample: /etc/ssl/crt/www.ansible.com.crt ''' from random import randint import datetime import os from ansible.module_utils import crypto as crypto_utils from ansible.module_utils.basic import AnsibleModule from ansible.module_utils._text import to_native, to_bytes try: import OpenSSL from OpenSSL import crypto except ImportError: pyopenssl_found = False else: pyopenssl_found = True class CertificateError(crypto_utils.OpenSSLObjectError): pass class Certificate(crypto_utils.OpenSSLObject): def __init__(self, module): 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.module = 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) def _validate_privatekey(): if self.privatekey_path: 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(): try: self.csr.verify(self.cert.get_pubkey()) except OpenSSL.crypto.Error: return False if self.csr.get_subject() != self.cert.get_subject(): return False 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 if not state_and_perms: return False self.cert = crypto_utils.load_certificate(self.path) if self.privatekey_path: self.privatekey = crypto_utils.load_privatekey( self.privatekey_path, self.privatekey_passphrase ) return _validate_privatekey() if self.csr_path: self.csr = crypto_utils.load_certificate_request(self.csr_path) if not _validate_csr(): return False return True class CertificateAbsent(Certificate): def __init__(self, module): super(CertificateAbsent, self).__init__(module) 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 } return result class SelfSignedCertificate(Certificate): """Generate the self-signed certificate.""" def __init__(self, module): super(SelfSignedCertificate, self).__init__(module) self.notBefore = module.params['selfsigned_notBefore'] self.notAfter = module.params['selfsigned_notAfter'] 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) self.privatekey = crypto_utils.load_privatekey( self.privatekey_path, self.privatekey_passphrase ) 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) if self.notBefore: cert.set_notBefore(to_bytes(self.notBefore)) else: cert.gmtime_adj_notBefore(0) if self.notAfter: cert.set_notAfter(to_bytes(self.notAfter)) else: # If no NotAfter specified, expire in # 10 years. 315360000 is 10 years in seconds. cert.gmtime_adj_notAfter(315360000) 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 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 check_mode: now = datetime.datetime.utcnow() ten = now.replace(now.year + 10) result.update({ 'notBefore': self.notBefore if self.notBefore else now.strftime("%Y%m%d%H%M%SZ"), 'notAfter': self.notAfter if self.notAfter else ten.strftime("%Y%m%d%H%M%SZ"), '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 OwnCACertificate(Certificate): """Generate the own CA certificate.""" def __init__(self, module): super(OwnCACertificate, self).__init__(module) self.notBefore = module.params['ownca_not_before'] self.notAfter = module.params['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) self.ca_privatekey = crypto_utils.load_privatekey( self.ca_privatekey_path, self.ca_privatekey_passphrase ) 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) if self.notBefore: cert.set_notBefore(to_bytes(self.notBefore)) else: cert.gmtime_adj_notBefore(0) if self.notAfter: cert.set_notAfter(to_bytes(self.notAfter)) else: # If no NotAfter specified, expire in # 10 years. 315360000 is 10 years in seconds. cert.gmtime_adj_notAfter(315360000) 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 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 check_mode: now = datetime.datetime.utcnow() ten = now.replace(now.year + 10) result.update({ 'notBefore': self.notBefore if self.notBefore else now.strftime("%Y%m%d%H%M%SZ"), 'notAfter': self.notAfter if self.notAfter else ten.strftime("%Y%m%d%H%M%SZ"), '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 AssertOnlyCertificate(Certificate): """validate the supplied certificate.""" def __init__(self, module): super(AssertOnlyCertificate, self).__init__(module) 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.keyUsage = module.params['keyUsage'] self.keyUsage_strict = module.params['keyUsage_strict'] self.extendedKeyUsage = module.params['extendedKeyUsage'] self.extendedKeyUsage_strict = module.params['extendedKeyUsage_strict'] self.subjectAltName = module.params['subjectAltName'] self.subjectAltName_strict = module.params['subjectAltName_strict'] self.notBefore = module.params['notBefore'] self.notAfter = module.params['notAfter'] self.valid_at = module.params['valid_at'] self.invalid_at = module.params['invalid_at'] self.valid_in = module.params['valid_in'] self.message = [] self._sanitize_inputs() def _sanitize_inputs(self): """Ensure inputs are properly sanitized before comparison.""" for param in ['signature_algorithms', 'keyUsage', 'extendedKeyUsage', 'subjectAltName', 'subject', 'issuer', 'notBefore', 'notAfter', '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 assertonly(self): self.cert = crypto_utils.load_certificate(self.path) def _validate_signature_algorithms(): if self.signature_algorithms: if self.cert.get_signature_algorithm() not in self.signature_algorithms: self.message.append( 'Invalid signature algorithm (got %s, expected one of %s)' % (self.cert.get_signature_algorithm(), self.signature_algorithms) ) def _validate_subject(): if self.subject: 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 self.subject_strict and not all(x in current_subject for x in expected_subject)) or \ (self.subject_strict and not set(expected_subject) == set(current_subject)): self.message.append( 'Invalid subject component (got %s, expected all of %s to be present)' % (cert_subject, self.subject) ) def _validate_issuer(): if self.issuer: 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 self.issuer_strict and not all(x in current_issuer for x in expected_issuer)) or \ (self.issuer_strict and not set(expected_issuer) == set(current_issuer)): self.message.append( 'Invalid issuer component (got %s, expected all of %s to be present)' % (cert_issuer, self.issuer) ) def _validate_has_expired(): # 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() if self.has_expired != cert_expired: self.message.append( 'Certificate expiration check failed (certificate expiration is %s, expected %s)' % (cert_expired, self.has_expired) ) def _validate_version(): if self.version: # Version numbers in certs are off by one: # v1: 0, v2: 1, v3: 2 ... if self.version != self.cert.get_version() + 1: self.message.append( 'Invalid certificate version number (got %s, expected %s)' % (self.cert.get_version() + 1, self.version) ) def _validate_keyUsage(): if self.keyUsage: 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 keyUsage = [OpenSSL._util.lib.OBJ_txt2nid(keyUsage) for keyUsage in self.keyUsage] current_ku = [OpenSSL._util.lib.OBJ_txt2nid(usage.strip()) for usage in to_bytes(extension, errors='surrogate_or_strict').split(b',')] if (not self.keyUsage_strict and not all(x in current_ku for x in keyUsage)) or \ (self.keyUsage_strict and not set(keyUsage) == set(current_ku)): self.message.append( 'Invalid keyUsage component (got %s, expected all of %s to be present)' % (str(extension).split(', '), self.keyUsage) ) if not found: self.message.append('Found no keyUsage extension') def _validate_extendedKeyUsage(): if self.extendedKeyUsage: 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.extendedKeyUsage] current_xku = [OpenSSL._util.lib.OBJ_txt2nid(usage.strip()) for usage in to_bytes(extension, errors='surrogate_or_strict').split(b',')] if (not self.extendedKeyUsage_strict and not all(x in current_xku for x in extKeyUsage)) or \ (self.extendedKeyUsage_strict and not set(extKeyUsage) == set(current_xku)): self.message.append( 'Invalid extendedKeyUsage component (got %s, expected all of %s to be present)' % (str(extension).split(', '), self.extendedKeyUsage) ) if not found: self.message.append('Found no extendedKeyUsage extension') def _validate_subjectAltName(): if self.subjectAltName: 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 self.subjectAltName_strict and not all(x in l_altnames for x in self.subjectAltName)) or \ (self.subjectAltName_strict and not set(self.subjectAltName) == set(l_altnames)): self.message.append( 'Invalid subjectAltName component (got %s, expected all of %s to be present)' % (l_altnames, self.subjectAltName) ) if not found: self.message.append('Found no subjectAltName extension') def _validate_notBefore(): if self.notBefore: if self.cert.get_notBefore() != self.notBefore: self.message.append( 'Invalid notBefore component (got %s, expected %s to be present)' % (self.cert.get_notBefore(), self.notBefore) ) def _validate_notAfter(): if self.notAfter: if self.cert.get_notAfter() != self.notAfter: self.message.append( 'Invalid notAfter component (got %s, expected %s to be present)' % (self.cert.get_notAfter(), self.notAfter) ) def _validate_valid_at(): if self.valid_at: if not (self.cert.get_notBefore() <= self.valid_at <= self.cert.get_notAfter()): self.message.append( 'Certificate is not valid for the specified date (%s) - notBefore: %s - notAfter: %s' % (self.valid_at, self.cert.get_notBefore(), self.cert.get_notAfter()) ) def _validate_invalid_at(): if self.invalid_at: if not (self.invalid_at <= self.cert.get_notBefore() or self.invalid_at >= self.cert.get_notAfter()): self.message.append( 'Certificate is not invalid for the specified date (%s) - notBefore: %s - notAfter: %s' % (self.invalid_at, self.cert.get_notBefore(), self.cert.get_notAfter()) ) def _validate_valid_in(): if self.valid_in: valid_in_date = datetime.datetime.utcnow() + datetime.timedelta(seconds=self.valid_in) valid_in_date = to_bytes(valid_in_date.strftime('%Y%m%d%H%M%SZ'), errors='surrogate_or_strict') if not (self.cert.get_notBefore() <= valid_in_date <= self.cert.get_notAfter()): self.message.append( 'Certificate is not valid in %s seconds from now (%s) - notBefore: %s - notAfter: %s' % (self.valid_in, valid_in_date, self.cert.get_notBefore(), self.cert.get_notAfter()) ) for validation in ['signature_algorithms', 'subject', 'issuer', 'has_expired', 'version', 'keyUsage', 'extendedKeyUsage', 'subjectAltName', 'notBefore', 'notAfter', 'valid_at', 'invalid_at', 'valid_in']: f_name = locals()['_validate_%s' % validation] f_name() def generate(self, module): """Don't generate anything - assertonly""" self.assertonly() if self.privatekey_path and \ not super(AssertOnlyCertificate, self).check(module, perms_required=False): self.message.append( 'Certificate %s and private key %s does not match' % (self.path, self.privatekey_path) ) if len(self.message): module.fail_json(msg=' | '.join(self.message)) def check(self, module, perms_required=True): """Ensure the resource is in its desired state.""" parent_check = super(AssertOnlyCertificate, self).check(module, perms_required) self.assertonly() assertonly_check = not len(self.message) self.message = [] return parent_check and assertonly_check def dump(self, check_mode=False): result = { 'changed': self.changed, 'filename': self.path, 'privatekey': self.privatekey_path, 'csr': self.csr_path, } return result class AcmeCertificate(Certificate): """Retrieve a certificate using the ACME protocol.""" def __init__(self, module): super(AcmeCertificate, self).__init__(module) 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) chain = '' if self.use_chain: chain = '--chain' try: crt = module.run_command("%s %s --account-key %s --csr %s " "--acme-dir %s" % (acme_tiny_path, chain, self.accountkey_path, self.csr_path, self.challenge_path), check_rc=True)[1] 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, } return result def main(): module = AnsibleModule( argument_spec=dict( state=dict(type='str', choices=['present', 'absent'], default='present'), path=dict(type='path', required=True), provider=dict(type='str', choices=['selfsigned', 'ownca', 'assertonly', 'acme']), force=dict(type='bool', default=False,), csr_path=dict(type='path'), # 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'), 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'), keyUsage=dict(type='list', aliases=['key_usage']), keyUsage_strict=dict(type='bool', default=False, aliases=['key_usage_strict']), extendedKeyUsage=dict(type='list', aliases=['extended_key_usage'], ), extendedKeyUsage_strict=dict(type='bool', default=False, aliases=['extended_key_usage_strict']), subjectAltName=dict(type='list', aliases=['subject_alt_name']), subjectAltName_strict=dict(type='bool', default=False, aliases=['subject_alt_name_strict']), notBefore=dict(type='str', aliases=['not_before']), notAfter=dict(type='str', aliases=['not_after']), valid_at=dict(type='str'), invalid_at=dict(type='str'), valid_in=dict(type='int'), # provider: selfsigned selfsigned_version=dict(type='int', default='3'), selfsigned_digest=dict(type='str', default='sha256'), selfsigned_notBefore=dict(type='str', aliases=['selfsigned_not_before']), selfsigned_notAfter=dict(type='str', aliases=['selfsigned_not_after']), # provider: ownca ownca_path=dict(type='path'), ownca_privatekey_path=dict(type='path'), ownca_privatekey_passphrase=dict(type='path', no_log=True), ownca_digest=dict(type='str', default='sha256'), ownca_version=dict(type='int', default='3'), ownca_not_before=dict(type='str'), ownca_not_after=dict(type='str'), # provider: acme acme_accountkey_path=dict(type='path'), acme_challenge_path=dict(type='path'), acme_chain=dict(type='bool', default=True), ), supports_check_mode=True, add_file_common_args=True, ) if not pyopenssl_found: module.fail_json(msg='The python pyOpenSSL library is required') 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') 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 ) 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') provider = module.params['provider'] if provider == 'selfsigned': certificate = SelfSignedCertificate(module) elif provider == 'acme': certificate = AcmeCertificate(module) elif provider == 'ownca': certificate = OwnCACertificate(module) else: certificate = AssertOnlyCertificate(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) try: certificate.generate(module) except CertificateError as exc: module.fail_json(msg=to_native(exc)) else: if module.check_mode: result = certificate.dump(check_mode=True) result['changed'] = os.path.exists(module.params['path']) module.exit_json(**result) try: certificate.remove() except CertificateError as exc: module.fail_json(msg=to_native(exc)) result = certificate.dump() module.exit_json(**result) if __name__ == "__main__": main()