mirror of
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215 lines
9.5 KiB
Python
215 lines
9.5 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2016 Michael Gruener <michael.gruener@chaosmoon.net>
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'community'}
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DOCUMENTATION = '''
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---
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module: acme_certificate_revoke
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author: "Felix Fontein (@felixfontein)"
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version_added: "2.7"
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short_description: Revoke certificates with the ACME protocol
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description:
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- "Allows to revoke certificates issued by a CA supporting the
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L(ACME protocol,https://tools.ietf.org/html/rfc8555),
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such as L(Let's Encrypt,https://letsencrypt.org/)."
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notes:
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- "Exactly one of C(account_key_src), C(account_key_content),
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C(private_key_src) or C(private_key_content) must be specified."
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- "Trying to revoke an already revoked certificate
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should result in an unchanged status, even if the revocation reason
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was different than the one specified here. Also, depending on the
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server, it can happen that some other error is returned if the
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certificate has already been revoked."
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extends_documentation_fragment:
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- acme
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options:
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certificate:
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description:
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- "Path to the certificate to revoke."
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required: yes
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account_key_src:
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description:
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- "Path to a file containing the ACME account RSA or Elliptic Curve
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key."
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- "RSA keys can be created with C(openssl rsa ...). Elliptic curve keys can
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be created with C(openssl ecparam -genkey ...). Any other tool creating
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private keys in PEM format can be used as well."
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- "Mutually exclusive with C(account_key_content)."
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- "Required if C(account_key_content) is not used."
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account_key_content:
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description:
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- "Content of the ACME account RSA or Elliptic Curve key."
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- "Note that exactly one of C(account_key_src), C(account_key_content),
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C(private_key_src) or C(private_key_content) must be specified."
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- "I(Warning): the content will be written into a temporary file, which will
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be deleted by Ansible when the module completes. Since this is an
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important private key — it can be used to change the account key,
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or to revoke your certificates without knowing their private keys
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—, this might not be acceptable."
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- "In case C(cryptography) is used, the content is not written into a
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temporary file. It can still happen that it is written to disk by
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Ansible in the process of moving the module with its argument to
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the node where it is executed."
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private_key_src:
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description:
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- "Path to the certificate's private key."
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- "Note that exactly one of C(account_key_src), C(account_key_content),
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C(private_key_src) or C(private_key_content) must be specified."
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private_key_content:
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description:
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- "Content of the certificate's private key."
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- "Note that exactly one of C(account_key_src), C(account_key_content),
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C(private_key_src) or C(private_key_content) must be specified."
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- "I(Warning): the content will be written into a temporary file, which will
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be deleted by Ansible when the module completes. Since this is an
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important private key — it can be used to change the account key,
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or to revoke your certificates without knowing their private keys
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—, this might not be acceptable."
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- "In case C(cryptography) is used, the content is not written into a
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temporary file. It can still happen that it is written to disk by
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Ansible in the process of moving the module with its argument to
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the node where it is executed."
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revoke_reason:
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description:
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- "One of the revocation reasonCodes defined in
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L(https://tools.ietf.org/html/rfc5280#section-5.3.1, Section 5.3.1 of RFC5280)."
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- "Possible values are C(0) (unspecified), C(1) (keyCompromise),
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C(2) (cACompromise), C(3) (affiliationChanged), C(4) (superseded),
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C(5) (cessationOfOperation), C(6) (certificateHold),
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C(8) (removeFromCRL), C(9) (privilegeWithdrawn),
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C(10) (aACompromise)"
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'''
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EXAMPLES = '''
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- name: Revoke certificate with account key
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acme_certificate_revoke:
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account_key_src: /etc/pki/cert/private/account.key
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certificate: /etc/httpd/ssl/sample.com.crt
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- name: Revoke certificate with certificate's private key
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acme_certificate_revoke:
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private_key_src: /etc/httpd/ssl/sample.com.key
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certificate: /etc/httpd/ssl/sample.com.crt
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'''
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RETURN = '''
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'''
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from ansible.module_utils.acme import (
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ModuleFailException, ACMEAccount, nopad_b64, pem_to_der, set_crypto_backend,
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)
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from ansible.module_utils.basic import AnsibleModule
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def main():
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module = AnsibleModule(
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argument_spec=dict(
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account_key_src=dict(type='path', aliases=['account_key']),
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account_key_content=dict(type='str', no_log=True),
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account_uri=dict(required=False, type='str'),
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acme_directory=dict(required=False, default='https://acme-staging.api.letsencrypt.org/directory', type='str'),
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acme_version=dict(required=False, default=1, choices=[1, 2], type='int'),
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validate_certs=dict(required=False, default=True, type='bool'),
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private_key_src=dict(type='path'),
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private_key_content=dict(type='str', no_log=True),
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certificate=dict(required=True, type='path'),
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revoke_reason=dict(required=False, type='int'),
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select_crypto_backend=dict(required=False, choices=['auto', 'openssl', 'cryptography'], default='auto', type='str'),
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),
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required_one_of=(
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['account_key_src', 'account_key_content', 'private_key_src', 'private_key_content'],
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),
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mutually_exclusive=(
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['account_key_src', 'account_key_content', 'private_key_src', 'private_key_content'],
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),
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supports_check_mode=False,
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)
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set_crypto_backend(module)
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if not module.params.get('validate_certs'):
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module.warn(warning='Disabling certificate validation for communications with ACME endpoint. ' +
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'This should only be done for testing against a local ACME server for ' +
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'development purposes, but *never* for production purposes.')
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try:
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account = ACMEAccount(module)
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# Load certificate
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certificate = pem_to_der(module.params.get('certificate'))
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certificate = nopad_b64(certificate)
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# Construct payload
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payload = {
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'certificate': certificate
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}
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if module.params.get('revoke_reason') is not None:
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payload['reason'] = module.params.get('revoke_reason')
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# Determine endpoint
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if module.params.get('acme_version') == 1:
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endpoint = account.directory['revoke-cert']
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payload['resource'] = 'revoke-cert'
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else:
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endpoint = account.directory['revokeCert']
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# Get hold of private key (if available) and make sure it comes from disk
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private_key = module.params.get('private_key_src')
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private_key_content = module.params.get('private_key_content')
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# Revoke certificate
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if private_key or private_key_content:
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# Step 1: load and parse private key
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error, private_key_data = account.parse_key(private_key, private_key_content)
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if error:
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raise ModuleFailException("error while parsing private key: %s" % error)
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# Step 2: sign revokation request with private key
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jws_header = {
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"alg": private_key_data['alg'],
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"jwk": private_key_data['jwk'],
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}
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result, info = account.send_signed_request(endpoint, payload, key_data=private_key_data, jws_header=jws_header)
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else:
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# Step 1: get hold of account URI
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changed = account.init_account(
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[],
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allow_creation=False,
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update_contact=False,
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)
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if changed:
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raise AssertionError('Unwanted account change')
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# Step 2: sign revokation request with account key
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result, info = account.send_signed_request(endpoint, payload)
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if info['status'] != 200:
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already_revoked = False
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# Standarized error from draft 14 on (https://tools.ietf.org/html/rfc8555#section-7.6)
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if result.get('type') == 'urn:ietf:params:acme:error:alreadyRevoked':
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already_revoked = True
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else:
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# Hack for Boulder errors
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if module.params.get('acme_version') == 1:
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error_type = 'urn:acme:error:malformed'
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else:
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error_type = 'urn:ietf:params:acme:error:malformed'
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if result.get('type') == error_type and result.get('detail') == 'Certificate already revoked':
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# Fallback: boulder returns this in case the certificate was already revoked.
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already_revoked = True
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# If we know the certificate was already revoked, we don't fail,
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# but successfully terminate while indicating no change
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if already_revoked:
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module.exit_json(changed=False)
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raise ModuleFailException('Error revoking certificate: {0} {1}'.format(info['status'], result))
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module.exit_json(changed=True)
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except ModuleFailException as e:
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e.do_fail(module)
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if __name__ == '__main__':
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main()
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