add acme_inspect module (#48444)

pull/49366/head
Felix Fontein 6 years ago committed by René Moser
parent fe147289b7
commit 2bd8e47247

@ -59,8 +59,8 @@ class ModuleFailException(Exception):
self.msg = msg
self.module_fail_args = args
def do_fail(self, module):
module.fail_json(msg=self.msg, other=self.module_fail_args)
def do_fail(self, module, **arguments):
module.fail_json(msg=self.msg, other=self.module_fail_args, **arguments)
def nopad_b64(data):
@ -518,12 +518,16 @@ class ACMEAccount(object):
else:
return _parse_key_openssl(self._openssl_bin, self.module, key_file, key_content)
def sign_request(self, protected, payload, key_data):
def sign_request(self, protected, payload, key_data, encode_payload=True):
try:
if payload is None:
# POST-as-GET
payload64 = ''
else:
payload64 = nopad_b64(self.module.jsonify(payload).encode('utf8'))
# POST
if encode_payload:
payload = self.module.jsonify(payload).encode('utf8')
payload64 = nopad_b64(to_bytes(payload))
protected64 = nopad_b64(self.module.jsonify(protected).encode('utf8'))
except Exception as e:
raise ModuleFailException("Failed to encode payload / headers as JSON: {0}".format(e))
@ -533,7 +537,7 @@ class ACMEAccount(object):
else:
return _sign_request_openssl(self._openssl_bin, self.module, payload64, protected64, key_data)
def send_signed_request(self, url, payload, key_data=None, jws_header=None, parse_json_result=True):
def send_signed_request(self, url, payload, key_data=None, jws_header=None, parse_json_result=True, encode_payload=True):
'''
Sends a JWS signed HTTP POST request to the ACME server and returns
the response as dictionary
@ -551,7 +555,7 @@ class ACMEAccount(object):
if self.version != 1:
protected["url"] = url
data = self.sign_request(protected, payload, key_data)
data = self.sign_request(protected, payload, key_data, encode_payload=encode_payload)
if self.version == 1:
data["header"] = jws_header
data = self.module.jsonify(data)
@ -588,7 +592,7 @@ class ACMEAccount(object):
return result, info
def get_request(self, uri, parse_json_result=True, headers=None, get_only=False):
def get_request(self, uri, parse_json_result=True, headers=None, get_only=False, fail_on_error=True):
'''
Perform a GET-like request. Will try POST-as-GET for ACMEv2, with fallback
to GET if server replies with a status code of 405.
@ -626,7 +630,7 @@ class ACMEAccount(object):
else:
result = content
if info['status'] >= 400:
if fail_on_error and info['status'] >= 400:
raise ModuleFailException("ACME request failed: CODE: {0} RESULT: {1}".format(info['status'], result))
return result, info

@ -51,6 +51,8 @@ notes:
M(acme_challenge_cert_helper) module to prepare the challenge certificate."
- "You can use the M(certificate_complete_chain) module to find the root certificate
for the returned fullchain."
- "In case you want to debug problems, you might be interested in the M(acme_inspect)
module."
extends_documentation_fragment:
- acme
options:

@ -0,0 +1,319 @@
#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2018 Felix Fontein (@felixfontein)
# 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: acme_inspect
author: "Felix Fontein (@felixfontein)"
version_added: "2.8"
short_description: Send direct requests to an ACME server
description:
- "Allows to send direct requests to an ACME server with the
L(ACME protocol,https://tools.ietf.org/html/draft-ietf-acme-acme-14),
which is supported by CAs such as L(Let's Encrypt,https://letsencrypt.org/)."
- "This module can be used to debug failed certificate request attempts,
for example when M(acme_certificate) fails or encounters a problem which
you wish to investigate."
- "The module can also be used to directly access features of an ACME servers
which are not yet supported by the Ansible ACME modules."
notes:
- "The I(account_uri) option must be specified for properly authenticated
ACME v2 requests (except a C(new-account) request)."
- "Using the C(ansible) tool, M(acme_inspect) can be used to directly execute
ACME requests without the need of writing a playbook. For example, the
following command retrieves the ACME account with ID 1 from Let's Encrypt
(assuming C(/path/to/key) is the correct private account key):
C(ansible localhost -m acme_inspect -a \"account_key_src=/path/to/key
acme_directory=https://acme-v02.api.letsencrypt.org/directory acme_version=2
account_uri=https://acme-v02.api.letsencrypt.org/acme/acct/1 method=get
url=https://acme-v02.api.letsencrypt.org/acme/acct/1\")"
extends_documentation_fragment:
- acme
options:
url:
description:
- "The URL to send the request to."
- "Must be specified if I(method) is not C(directory-only)."
type: str
method:
description:
- "The method to use to access the given URL on the ACME server."
- "The value C(post) executes an authenticated POST request. The content
must be specified in the I(content) option."
- "The value C(get) executes an authenticated POST-as-GET request for ACME v2,
and a regular GET request for ACME v1."
- "The value C(directory-only) only retrieves the directory, without doing
a request."
choices:
- get
- post
- directory-only
default: get
content:
description:
- "An encoded JSON object which will be sent as the content if I(method)
is C(post)."
- "Required when I(method) is C(post), and not allowed otherwise."
type: str
fail_on_acme_error:
description:
- "If I(method) is C(post) or C(get), make the module fail in case an ACME
error is returned."
type: bool
default: yes
'''
EXAMPLES = r'''
- name: Get directory
acme_inspect:
acme_directory: https://acme-staging-v02.api.letsencrypt.org/directory
acme_version: 2
method: directory-only
register: directory
- name: Create an account
acme_inspect:
acme_directory: https://acme-staging-v02.api.letsencrypt.org/directory
acme_version: 2
account_key_src: /etc/pki/cert/private/account.key
url: "{{ directory.newAccount}}"
method: post
content: '{"termsOfServiceAgreed":true}'
register: account_creation
# account_creation.headers.location contains the account URI
# if creation was successful
- name: Get account information
acme_inspect:
acme_directory: https://acme-staging-v02.api.letsencrypt.org/directory
acme_version: 2
account_key_src: /etc/pki/cert/private/account.key
account_uri: "{{ account_creation.headers.location }}"
url: "{{ account_creation.headers.location }}"
method: get
- name: Update account contacts
acme_inspect:
acme_directory: https://acme-staging-v02.api.letsencrypt.org/directory
acme_version: 2
account_key_src: /etc/pki/cert/private/account.key
account_uri: "{{ account_creation.headers.location }}"
url: "{{ account_creation.headers.location }}"
method: post
content: '{{ account_info | to_json }}'
vars:
account_info:
# For valid values, see
# https://tools.ietf.org/html/draft-ietf-acme-acme-16#section-7.3
contact:
- mailto:me@example.com
- name: Create certificate order
acme_certificate:
acme_directory: https://acme-staging-v02.api.letsencrypt.org/directory
acme_version: 2
account_key_src: /etc/pki/cert/private/account.key
account_uri: "{{ account_creation.headers.location }}"
csr: /etc/pki/cert/csr/sample.com.csr
fullchain_dest: /etc/httpd/ssl/sample.com-fullchain.crt
challenge: http-01
register: certificate_request
# Assume something went wrong. certificate_request.order_uri contains
# the order URI.
- name: Get order information
acme_inspect:
acme_directory: https://acme-staging-v02.api.letsencrypt.org/directory
acme_version: 2
account_key_src: /etc/pki/cert/private/account.key
account_uri: "{{ account_creation.headers.location }}"
url: "{{ certificate_request.order_uri }}"
method: get
register: order
- name: Get first authz for order
acme_inspect:
acme_directory: https://acme-staging-v02.api.letsencrypt.org/directory
acme_version: 2
account_key_src: /etc/pki/cert/private/account.key
account_uri: "{{ account_creation.headers.location }}"
url: "{{ order.output_json.authorizations[0] }}"
method: get
register: authz
- name: Get HTTP-01 challenge for authz
acme_inspect:
acme_directory: https://acme-staging-v02.api.letsencrypt.org/directory
acme_version: 2
account_key_src: /etc/pki/cert/private/account.key
account_uri: "{{ account_creation.headers.location }}"
url: "{{ authz.output_json.challenges | selectattr('type', 'equalto', 'http-01') }}"
method: get
register: http01challenge
- name: Activate HTTP-01 challenge manually
acme_inspect:
acme_directory: https://acme-staging-v02.api.letsencrypt.org/directory
acme_version: 2
account_key_src: /etc/pki/cert/private/account.key
account_uri: "{{ account_creation.headers.location }}"
url: "{{ http01challenge.url }}"
method: post
content: '{}'
'''
RETURN = '''
directory:
description: The ACME directory's content
returned: always
type: dict
sample: |
{
"a85k3x9f91A4": "https://community.letsencrypt.org/t/adding-random-entries-to-the-directory/33417",
"keyChange": "https://acme-v02.api.letsencrypt.org/acme/key-change",
"meta": {
"caaIdentities": [
"letsencrypt.org"
],
"termsOfService": "https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf",
"website": "https://letsencrypt.org"
},
"newAccount": "https://acme-v02.api.letsencrypt.org/acme/new-acct",
"newNonce": "https://acme-v02.api.letsencrypt.org/acme/new-nonce",
"newOrder": "https://acme-v02.api.letsencrypt.org/acme/new-order",
"revokeCert": "https://acme-v02.api.letsencrypt.org/acme/revoke-cert"
}
headers:
description: The request's HTTP headers (with lowercase keys)
returned: always
type: dict
sample: |
{
"boulder-requester": "12345",
"cache-control": "max-age=0, no-cache, no-store",
"connection": "close",
"content-length": "904",
"content-type": "application/json",
"cookies": {},
"cookies_string": "",
"date": "Wed, 07 Nov 2018 12:34:56 GMT",
"expires": "Wed, 07 Nov 2018 12:44:56 GMT",
"link": "<https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf>;rel=\"terms-of-service\"",
"msg": "OK (904 bytes)",
"pragma": "no-cache",
"replay-nonce": "1234567890abcdefghijklmnopqrstuvwxyzABCDEFGH",
"server": "nginx",
"status": 200,
"strict-transport-security": "max-age=604800",
"url": "https://acme-v02.api.letsencrypt.org/acme/acct/46161",
"x-frame-options": "DENY"
}
output_text:
description: The raw text output
returned: always
type: string
sample: "{\\n \\\"id\\\": 12345,\\n \\\"key\\\": {\\n \\\"kty\\\": \\\"RSA\\\",\\n ..."
output_json:
description: The output parsed as JSON
returned: if output can be parsed as JSON
type: dict
sample:
- id: 12345
- key:
- kty: RSA
- ...
'''
from ansible.module_utils.acme import (
ModuleFailException, ACMEAccount, set_crypto_backend,
)
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils._text import to_native, to_bytes
import json
def main():
module = AnsibleModule(
argument_spec=dict(
account_key_src=dict(type='path', aliases=['account_key']),
account_key_content=dict(type='str', no_log=True),
account_uri=dict(required=False, type='str'),
acme_directory=dict(required=False, default='https://acme-staging.api.letsencrypt.org/directory', type='str'),
acme_version=dict(required=False, default=1, choices=[1, 2], type='int'),
validate_certs=dict(required=False, default=True, type='bool'),
url=dict(required=False, type='str'),
method=dict(required=False, type='str', choices=['get', 'post', 'directory-only'], default='get'),
content=dict(required=False, type='str'),
fail_on_acme_error=dict(required=False, type='bool', default=True),
select_crypto_backend=dict(required=False, choices=['auto', 'openssl', 'cryptography'], default='auto', type='str'),
),
mutually_exclusive=(
['account_key_src', 'account_key_content'],
),
required_if=(
['method', 'get', ['url']],
['method', 'post', ['url', 'content']],
['method', 'get', ['account_key_src', 'account_key_content'], True],
['method', 'post', ['account_key_src', 'account_key_content'], True],
),
)
set_crypto_backend(module)
if not module.params.get('validate_certs'):
module.warn(warning='Disabling certificate validation for communications with ACME endpoint. ' +
'This should only be done for testing against a local ACME server for ' +
'development purposes, but *never* for production purposes.')
result = dict()
changed = False
try:
# Get hold of ACMEAccount object (includes directory)
account = ACMEAccount(module)
method = module.params['method']
result['directory'] = account.directory.directory
# Do we have to do more requests?
if method != 'directory-only':
url = module.params['url']
fail_on_acme_error = module.params['fail_on_acme_error']
# Do request
if method == 'get':
data, info = account.get_request(url, parse_json_result=False, fail_on_error=False)
elif method == 'post':
changed = True # only POSTs can change
data, info = account.send_signed_request(url, to_bytes(module.params['content']), parse_json_result=False, encode_payload=False)
# Update results
result.update(dict(
headers=info,
output_text=to_native(data),
))
# See if we can parse the result as JSON
try:
result['output_json'] = json.loads(data)
except Exception as dummy:
pass
# Fail if error was returned
if fail_on_acme_error and info['status'] >= 400:
raise ModuleFailException("ACME request failed: CODE: {0} RESULT: {1}".format(info['status'], data))
# Done!
module.exit_json(changed=changed, **result)
except ModuleFailException as e:
e.do_fail(module, **result)
if __name__ == '__main__':
main()

@ -0,0 +1,2 @@
shippable/cloud/group1
cloud/acme

@ -0,0 +1,150 @@
---
- name: Generate account key
command: openssl ecparam -name prime256v1 -genkey -out {{ output_dir }}/accountkey.pem
- name: Parse account key (to ease debugging some test failures)
command: openssl ec -in {{ output_dir }}/accountkey.pem -noout -text
- name: Get directory
acme_inspect:
acme_directory: https://{{ acme_host }}:14000/dir
acme_version: 2
validate_certs: no
method: directory-only
register: directory
- debug: var=directory
- name: Create an account
acme_inspect:
acme_directory: https://{{ acme_host }}:14000/dir
acme_version: 2
validate_certs: no
account_key_src: "{{ output_dir }}/accountkey.pem"
url: "{{ directory.directory.newAccount}}"
method: post
content: '{"termsOfServiceAgreed":true}'
register: account_creation
# account_creation.headers.location contains the account URI
# if creation was successful
- debug: var=account_creation
- name: Get account information
acme_inspect:
acme_directory: https://{{ acme_host }}:14000/dir
acme_version: 2
validate_certs: no
account_key_src: "{{ output_dir }}/accountkey.pem"
account_uri: "{{ account_creation.headers.location }}"
url: "{{ account_creation.headers.location }}"
method: get
register: account_get
- debug: var=account_get
- name: Update account contacts
acme_inspect:
acme_directory: https://{{ acme_host }}:14000/dir
acme_version: 2
validate_certs: no
account_key_src: "{{ output_dir }}/accountkey.pem"
account_uri: "{{ account_creation.headers.location }}"
url: "{{ account_creation.headers.location }}"
method: post
content: '{{ account_info | to_json }}'
vars:
account_info:
# For valid values, see
# https://tools.ietf.org/html/draft-ietf-acme-acme-16#section-7.3
contact:
- mailto:me@example.com
register: account_update
- debug: var=account_update
- name: Create certificate order
acme_inspect:
acme_directory: https://{{ acme_host }}:14000/dir
acme_version: 2
validate_certs: no
account_key_src: "{{ output_dir }}/accountkey.pem"
account_uri: "{{ account_creation.headers.location }}"
url: "{{ directory.directory.newOrder }}"
method: post
content: '{{ create_order | to_json }}'
vars:
create_order:
# For valid values, see
# https://tools.ietf.org/html/draft-ietf-acme-acme-16#section-7.4
identifiers:
- type: dns
value: example.com
- type: dns
value: example.org
register: new_order
- debug: var=new_order
- name: Get order information
acme_inspect:
acme_directory: https://{{ acme_host }}:14000/dir
acme_version: 2
validate_certs: no
account_key_src: "{{ output_dir }}/accountkey.pem"
account_uri: "{{ account_creation.headers.location }}"
url: "{{ new_order.headers.location }}"
method: get
register: order
- debug: var=order
- name: Get authzs for order
acme_inspect:
acme_directory: https://{{ acme_host }}:14000/dir
acme_version: 2
validate_certs: no
account_key_src: "{{ output_dir }}/accountkey.pem"
account_uri: "{{ account_creation.headers.location }}"
url: "{{ item }}"
method: get
loop: "{{ order.output_json.authorizations }}"
register: authz
- debug: var=authz
- name: Get HTTP-01 challenge for authz
acme_inspect:
acme_directory: https://{{ acme_host }}:14000/dir
acme_version: 2
validate_certs: no
account_key_src: "{{ output_dir }}/accountkey.pem"
account_uri: "{{ account_creation.headers.location }}"
url: "{{ (item.challenges | selectattr('type', 'equalto', 'http-01') | list)[0].url }}"
method: get
register: http01challenge
loop: "{{ authz.results | map(attribute='output_json') | list }}"
- debug: var=http01challenge
- name: Activate HTTP-01 challenge manually
acme_inspect:
acme_directory: https://{{ acme_host }}:14000/dir
acme_version: 2
validate_certs: no
account_key_src: "{{ output_dir }}/accountkey.pem"
account_uri: "{{ account_creation.headers.location }}"
url: "{{ item.url }}"
method: post
content: '{}'
register: activation
loop: "{{ http01challenge.results | map(attribute='output_json') | list }}"
- debug: var=activation
- name: Get HTTP-01 challenge results
acme_inspect:
acme_directory: https://{{ acme_host }}:14000/dir
acme_version: 2
validate_certs: no
account_key_src: "{{ output_dir }}/accountkey.pem"
account_uri: "{{ account_creation.headers.location }}"
url: "{{ item.url }}"
method: get
register: validation_result
loop: "{{ http01challenge.results | map(attribute='output_json') | list }}"
until: "validation_result.output_json.status != 'pending'"
retries: 20
delay: 1
- debug: var=validation_result

@ -0,0 +1,31 @@
---
- block:
- name: Running tests with OpenSSL backend
include_tasks: impl.yml
vars:
select_crypto_backend: openssl
- import_tasks: ../tests/validate.yml
# Old 0.9.8 versions have insufficient CLI support for signing with EC keys
when: openssl_version.stdout is version('1.0.0', '>=')
- name: Remove output directory
file:
path: "{{ output_dir }}"
state: absent
- name: Re-create output directory
file:
path: "{{ output_dir }}"
state: directory
- block:
- name: Running tests with cryptography backend
include_tasks: impl.yml
vars:
select_crypto_backend: cryptography
- import_tasks: ../tests/validate.yml
when: cryptography_version.stdout is version('1.5', '>=')

@ -0,0 +1,131 @@
---
- name: Check directory output
assert:
that:
- directory is not changed
- "'directory' in directory"
- "'newAccount' in directory.directory"
- "'newOrder' in directory.directory"
- "'newNonce' in directory.directory"
- "'headers' not in directory"
- "'output_text' not in directory"
- "'output_json' not in directory"
- name: Check account creation output
assert:
that:
- account_creation is changed
- "'directory' in account_creation"
- "'headers' in account_creation"
- "'output_text' in account_creation"
- "'output_json' in account_creation"
- account_creation.headers.status == 201
- "'location' in account_creation.headers"
- account_creation.output_json.status == 'valid'
- not account_creation.output_json.contact
- account_creation.output_text | from_json == account_creation.output_json
- name: Check account get output
assert:
that:
- account_get is not changed
- "'directory' in account_get"
- "'headers' in account_get"
- "'output_text' in account_get"
- "'output_json' in account_get"
- account_get.headers.status == 200
- account_get.output_json == account_creation.output_json
- name: Check account update output
assert:
that:
- account_update is changed
- "'directory' in account_update"
- "'headers' in account_update"
- "'output_text' in account_update"
- "'output_json' in account_update"
- account_update.output_json.status == 'valid'
- account_update.output_json.contact | length == 1
- account_update.output_json.contact[0] == 'mailto:me@example.com'
- name: Check certificate request output
assert:
that:
- new_order is changed
- "'directory' in new_order"
- "'headers' in new_order"
- "'output_text' in new_order"
- "'output_json' in new_order"
- new_order.output_json.authorizations | length == 2
- new_order.output_json.identifiers | length == 2
- new_order.output_json.status == 'pending'
- "'finalize' in new_order.output_json"
- name: Check get order output
assert:
that:
- order is not changed
- "'directory' in order"
- "'headers' in order"
- "'output_text' in order"
- "'output_json' in order"
# The order of identifiers and authorizations is randomized!
# - new_order.output_json == order.output_json
- name: Check get authz output
assert:
that:
- item is not changed
- "'directory' in item"
- "'headers' in item"
- "'output_text' in item"
- "'output_json' in item"
- item.output_json.challenges | length >= 3
- item.output_json.identifier.type == 'dns'
- item.output_json.status == 'pending'
loop: "{{ authz.results }}"
- name: Check get challenge output
assert:
that:
- item is not changed
- "'directory' in item"
- "'headers' in item"
- "'output_text' in item"
- "'output_json' in item"
- item.output_json.status == 'pending'
- item.output_json.type == 'http-01'
- item.output_json.url == item.invocation.module_args.url
- "'token' in item.output_json"
loop: "{{ http01challenge.results }}"
- name: Check challenge activation output
assert:
that:
- item is changed
- "'directory' in item"
- "'headers' in item"
- "'output_text' in item"
- "'output_json' in item"
- item.output_json.status == 'pending'
- item.output_json.type == 'http-01'
- item.output_json.url == item.invocation.module_args.url
- "'token' in item.output_json"
loop: "{{ activation.results }}"
- name: Check validation result
assert:
that:
- item is not changed
- "'directory' in item"
- "'headers' in item"
- "'output_text' in item"
- "'output_json' in item"
- item.output_json.status == 'invalid'
- item.output_json.type == 'http-01'
- item.output_json.url == item.invocation.module_args.url
- "'token' in item.output_json"
- "'validated' in item.output_json"
- "'error' in item.output_json"
- item.output_json.error.type == 'urn:ietf:params:acme:error:unauthorized'
loop: "{{ validation_result.results }}"
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