mirror of
https://github.com/thegeeklab/ansible-later.git
synced 2024-11-16 10:00:39 +00:00
869 lines
34 KiB
Python
869 lines
34 KiB
Python
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# -*- coding: utf-8 -*-
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# This code is part of Ansible, but is an independent component.
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# This particular file snippet, and this file snippet only, is BSD licensed.
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# Modules you write using this snippet, which is embedded dynamically by Ansible
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# still belong to the author of the module, and may assign their own license
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# to the complete work.
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#
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# Copyright (c), Michael Gruener <michael.gruener@chaosmoon.net>, 2016
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#
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# Simplified BSD License (see licenses/simplified_bsd.txt or https://opensource.org/licenses/BSD-2-Clause)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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import base64
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import binascii
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import copy
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import datetime
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import hashlib
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import json
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import os
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import re
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import shutil
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import sys
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import tempfile
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import traceback
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from ansible.module_utils._text import to_native, to_text, to_bytes
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from ansible.module_utils.urls import fetch_url as _fetch_url
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try:
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import cryptography
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import cryptography.hazmat.backends
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import cryptography.hazmat.primitives.serialization
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import cryptography.hazmat.primitives.asymmetric.rsa
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import cryptography.hazmat.primitives.asymmetric.ec
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import cryptography.hazmat.primitives.asymmetric.padding
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import cryptography.hazmat.primitives.hashes
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import cryptography.hazmat.primitives.asymmetric.utils
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import cryptography.x509
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import cryptography.x509.oid
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from distutils.version import LooseVersion
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CRYPTOGRAPHY_VERSION = cryptography.__version__
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HAS_CURRENT_CRYPTOGRAPHY = (LooseVersion(CRYPTOGRAPHY_VERSION) >= LooseVersion('1.5'))
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if HAS_CURRENT_CRYPTOGRAPHY:
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_cryptography_backend = cryptography.hazmat.backends.default_backend()
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except Exception as _:
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HAS_CURRENT_CRYPTOGRAPHY = False
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class ModuleFailException(Exception):
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'''
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If raised, module.fail_json() will be called with the given parameters after cleanup.
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'''
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def __init__(self, msg, **args):
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super(ModuleFailException, self).__init__(self, msg)
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self.msg = msg
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self.module_fail_args = args
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def do_fail(self, module):
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module.fail_json(msg=self.msg, other=self.module_fail_args)
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def _lowercase_fetch_url(*args, **kwargs):
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'''
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Add lowercase representations of the header names as dict keys
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'''
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response, info = _fetch_url(*args, **kwargs)
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info.update(dict((header.lower(), value) for (header, value) in info.items()))
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return response, info
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fetch_url = _lowercase_fetch_url
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def nopad_b64(data):
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return base64.urlsafe_b64encode(data).decode('utf8').replace("=", "")
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def read_file(fn, mode='b'):
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try:
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with open(fn, 'r' + mode) as f:
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return f.read()
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except Exception as e:
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raise ModuleFailException('Error while reading file "{0}": {1}'.format(fn, e))
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# function source: network/basics/uri.py
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def write_file(module, dest, content):
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'''
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Write content to destination file dest, only if the content
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has changed.
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'''
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changed = False
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# create a tempfile
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fd, tmpsrc = tempfile.mkstemp(text=False)
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f = os.fdopen(fd, 'wb')
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try:
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f.write(content)
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except Exception as err:
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try:
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f.close()
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except Exception as e:
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pass
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os.remove(tmpsrc)
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raise ModuleFailException("failed to create temporary content file: %s" % to_native(err), exception=traceback.format_exc())
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f.close()
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checksum_src = None
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checksum_dest = None
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# raise an error if there is no tmpsrc file
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if not os.path.exists(tmpsrc):
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try:
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os.remove(tmpsrc)
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except Exception as e:
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pass
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raise ModuleFailException("Source %s does not exist" % (tmpsrc))
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if not os.access(tmpsrc, os.R_OK):
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os.remove(tmpsrc)
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raise ModuleFailException("Source %s not readable" % (tmpsrc))
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checksum_src = module.sha1(tmpsrc)
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# check if there is no dest file
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if os.path.exists(dest):
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# raise an error if copy has no permission on dest
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if not os.access(dest, os.W_OK):
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os.remove(tmpsrc)
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raise ModuleFailException("Destination %s not writable" % (dest))
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if not os.access(dest, os.R_OK):
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os.remove(tmpsrc)
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raise ModuleFailException("Destination %s not readable" % (dest))
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checksum_dest = module.sha1(dest)
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else:
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if not os.access(os.path.dirname(dest), os.W_OK):
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os.remove(tmpsrc)
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raise ModuleFailException("Destination dir %s not writable" % (os.path.dirname(dest)))
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if checksum_src != checksum_dest:
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try:
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shutil.copyfile(tmpsrc, dest)
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changed = True
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except Exception as err:
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os.remove(tmpsrc)
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raise ModuleFailException("failed to copy %s to %s: %s" % (tmpsrc, dest, to_native(err)), exception=traceback.format_exc())
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os.remove(tmpsrc)
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return changed
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def pem_to_der(pem_filename):
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'''
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Load PEM file, and convert to DER.
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If PEM contains multiple entities, the first entity will be used.
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'''
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certificate_lines = []
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try:
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with open(pem_filename, "rt") as f:
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header_line_count = 0
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for line in f:
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if line.startswith('-----'):
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header_line_count += 1
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if header_line_count == 2:
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# If certificate file contains other certs appended
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# (like intermediate certificates), ignore these.
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break
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continue
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certificate_lines.append(line.strip())
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except Exception as err:
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raise ModuleFailException("cannot load PEM file {0}: {1}".format(pem_filename, to_native(err)), exception=traceback.format_exc())
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return base64.b64decode(''.join(certificate_lines))
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def _parse_key_openssl(openssl_binary, module, key_file=None, key_content=None):
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'''
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Parses an RSA or Elliptic Curve key file in PEM format and returns a pair
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(error, key_data).
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'''
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# If key_file isn't given, but key_content, write that to a temporary file
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if key_file is None:
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fd, tmpsrc = tempfile.mkstemp()
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module.add_cleanup_file(tmpsrc) # Ansible will delete the file on exit
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f = os.fdopen(fd, 'wb')
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try:
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f.write(key_content.encode('utf-8'))
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key_file = tmpsrc
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except Exception as err:
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try:
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f.close()
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except Exception as e:
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pass
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raise ModuleFailException("failed to create temporary content file: %s" % to_native(err), exception=traceback.format_exc())
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f.close()
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# Parse key
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account_key_type = None
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with open(key_file, "rt") as f:
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for line in f:
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m = re.match(r"^\s*-{5,}BEGIN\s+(EC|RSA)\s+PRIVATE\s+KEY-{5,}\s*$", line)
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if m is not None:
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account_key_type = m.group(1).lower()
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break
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if account_key_type is None:
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# This happens for example if openssl_privatekey created this key
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# (as opposed to the OpenSSL binary). For now, we assume this is
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# an RSA key.
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# FIXME: add some kind of auto-detection
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account_key_type = "rsa"
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if account_key_type not in ("rsa", "ec"):
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return 'unknown key type "%s"' % account_key_type, {}
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openssl_keydump_cmd = [openssl_binary, account_key_type, "-in", key_file, "-noout", "-text"]
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dummy, out, dummy = module.run_command(openssl_keydump_cmd, check_rc=True)
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if account_key_type == 'rsa':
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pub_hex, pub_exp = re.search(
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r"modulus:\n\s+00:([a-f0-9\:\s]+?)\npublicExponent: ([0-9]+)",
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to_text(out, errors='surrogate_or_strict'), re.MULTILINE | re.DOTALL).groups()
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pub_exp = "{0:x}".format(int(pub_exp))
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if len(pub_exp) % 2:
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pub_exp = "0{0}".format(pub_exp)
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return None, {
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'key_file': key_file,
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'type': 'rsa',
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'alg': 'RS256',
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'jwk': {
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"kty": "RSA",
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"e": nopad_b64(binascii.unhexlify(pub_exp.encode("utf-8"))),
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"n": nopad_b64(binascii.unhexlify(re.sub(r"(\s|:)", "", pub_hex).encode("utf-8"))),
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},
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'hash': 'sha256',
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}
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elif account_key_type == 'ec':
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pub_data = re.search(
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r"pub:\s*\n\s+04:([a-f0-9\:\s]+?)\nASN1 OID: (\S+)(?:\nNIST CURVE: (\S+))?",
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to_text(out, errors='surrogate_or_strict'), re.MULTILINE | re.DOTALL)
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if pub_data is None:
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return 'cannot parse elliptic curve key', {}
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pub_hex = binascii.unhexlify(re.sub(r"(\s|:)", "", pub_data.group(1)).encode("utf-8"))
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asn1_oid_curve = pub_data.group(2).lower()
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nist_curve = pub_data.group(3).lower() if pub_data.group(3) else None
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if asn1_oid_curve == 'prime256v1' or nist_curve == 'p-256':
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bits = 256
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alg = 'ES256'
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hash = 'sha256'
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point_size = 32
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curve = 'P-256'
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elif asn1_oid_curve == 'secp384r1' or nist_curve == 'p-384':
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bits = 384
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alg = 'ES384'
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hash = 'sha384'
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point_size = 48
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curve = 'P-384'
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elif asn1_oid_curve == 'secp521r1' or nist_curve == 'p-521':
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# Not yet supported on Let's Encrypt side, see
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# https://github.com/letsencrypt/boulder/issues/2217
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bits = 521
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alg = 'ES512'
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hash = 'sha512'
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point_size = 66
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curve = 'P-521'
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else:
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return 'unknown elliptic curve: %s / %s' % (asn1_oid_curve, nist_curve), {}
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bytes = (bits + 7) // 8
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if len(pub_hex) != 2 * bytes:
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return 'bad elliptic curve point (%s / %s)' % (asn1_oid_curve, nist_curve), {}
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return None, {
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'key_file': key_file,
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'type': 'ec',
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'alg': alg,
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'jwk': {
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"kty": "EC",
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"crv": curve,
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"x": nopad_b64(pub_hex[:bytes]),
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"y": nopad_b64(pub_hex[bytes:]),
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},
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'hash': hash,
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'point_size': point_size,
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}
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def _sign_request_openssl(openssl_binary, module, payload64, protected64, key_data):
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openssl_sign_cmd = [openssl_binary, "dgst", "-{0}".format(key_data['hash']), "-sign", key_data['key_file']]
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sign_payload = "{0}.{1}".format(protected64, payload64).encode('utf8')
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dummy, out, dummy = module.run_command(openssl_sign_cmd, data=sign_payload, check_rc=True, binary_data=True)
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if key_data['type'] == 'ec':
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dummy, der_out, dummy = module.run_command(
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[openssl_binary, "asn1parse", "-inform", "DER"],
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data=out, binary_data=True)
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expected_len = 2 * key_data['point_size']
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sig = re.findall(
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r"prim:\s+INTEGER\s+:([0-9A-F]{1,%s})\n" % expected_len,
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to_text(der_out, errors='surrogate_or_strict'))
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if len(sig) != 2:
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raise ModuleFailException(
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"failed to generate Elliptic Curve signature; cannot parse DER output: {0}".format(
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to_text(der_out, errors='surrogate_or_strict')))
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sig[0] = (expected_len - len(sig[0])) * '0' + sig[0]
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sig[1] = (expected_len - len(sig[1])) * '0' + sig[1]
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out = binascii.unhexlify(sig[0]) + binascii.unhexlify(sig[1])
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return {
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"protected": protected64,
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"payload": payload64,
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"signature": nopad_b64(to_bytes(out)),
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}
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if sys.version_info[0] >= 3:
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# Python 3 (and newer)
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def _count_bytes(n):
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return (n.bit_length() + 7) // 8 if n > 0 else 0
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def _convert_int_to_bytes(count, no):
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return no.to_bytes(count, byteorder='big')
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def _pad_hex(n, digits):
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res = hex(n)[2:]
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if len(res) < digits:
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res = '0' * (digits - len(res)) + res
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return res
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else:
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# Python 2
|
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def _count_bytes(n):
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if n <= 0:
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return 0
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h = '%x' % n
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return (len(h) + 1) // 2
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def _convert_int_to_bytes(count, n):
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h = '%x' % n
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if len(h) > 2 * count:
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raise Exception('Number {1} needs more than {0} bytes!'.format(count, n))
|
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return ('0' * (2 * count - len(h)) + h).decode('hex')
|
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|
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def _pad_hex(n, digits):
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h = '%x' % n
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if len(h) < digits:
|
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h = '0' * (digits - len(h)) + h
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return h
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|
|
def _parse_key_cryptography(module, key_file=None, key_content=None):
|
||
|
|
'''
|
||
|
|
Parses an RSA or Elliptic Curve key file in PEM format and returns a pair
|
||
|
|
(error, key_data).
|
||
|
|
'''
|
||
|
|
# If key_content isn't given, read key_file
|
||
|
|
if key_content is None:
|
||
|
|
key_content = read_file(key_file)
|
||
|
|
else:
|
||
|
|
key_content = to_bytes(key_content)
|
||
|
|
# Parse key
|
||
|
|
try:
|
||
|
|
key = cryptography.hazmat.primitives.serialization.load_pem_private_key(key_content, password=None, backend=_cryptography_backend)
|
||
|
|
except Exception as e:
|
||
|
|
return 'error while loading key: {0}'.format(e), None
|
||
|
|
if isinstance(key, cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateKey):
|
||
|
|
pk = key.public_key().public_numbers()
|
||
|
|
return None, {
|
||
|
|
'key_obj': key,
|
||
|
|
'type': 'rsa',
|
||
|
|
'alg': 'RS256',
|
||
|
|
'jwk': {
|
||
|
|
"kty": "RSA",
|
||
|
|
"e": nopad_b64(_convert_int_to_bytes(_count_bytes(pk.e), pk.e)),
|
||
|
|
"n": nopad_b64(_convert_int_to_bytes(_count_bytes(pk.n), pk.n)),
|
||
|
|
},
|
||
|
|
'hash': 'sha256',
|
||
|
|
}
|
||
|
|
elif isinstance(key, cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePrivateKey):
|
||
|
|
pk = key.public_key().public_numbers()
|
||
|
|
if pk.curve.name == 'secp256r1':
|
||
|
|
bits = 256
|
||
|
|
alg = 'ES256'
|
||
|
|
hash = 'sha256'
|
||
|
|
point_size = 32
|
||
|
|
curve = 'P-256'
|
||
|
|
elif pk.curve.name == 'secp384r1':
|
||
|
|
bits = 384
|
||
|
|
alg = 'ES384'
|
||
|
|
hash = 'sha384'
|
||
|
|
point_size = 48
|
||
|
|
curve = 'P-384'
|
||
|
|
elif pk.curve.name == 'secp521r1':
|
||
|
|
# Not yet supported on Let's Encrypt side, see
|
||
|
|
# https://github.com/letsencrypt/boulder/issues/2217
|
||
|
|
bits = 521
|
||
|
|
alg = 'ES512'
|
||
|
|
hash = 'sha512'
|
||
|
|
point_size = 66
|
||
|
|
curve = 'P-521'
|
||
|
|
else:
|
||
|
|
return 'unknown elliptic curve: {0}'.format(pk.curve.name), {}
|
||
|
|
bytes = (bits + 7) // 8
|
||
|
|
return None, {
|
||
|
|
'key_obj': key,
|
||
|
|
'type': 'ec',
|
||
|
|
'alg': alg,
|
||
|
|
'jwk': {
|
||
|
|
"kty": "EC",
|
||
|
|
"crv": curve,
|
||
|
|
"x": nopad_b64(_convert_int_to_bytes(bytes, pk.x)),
|
||
|
|
"y": nopad_b64(_convert_int_to_bytes(bytes, pk.y)),
|
||
|
|
},
|
||
|
|
'hash': hash,
|
||
|
|
'point_size': point_size,
|
||
|
|
}
|
||
|
|
else:
|
||
|
|
return 'unknown key type "{0}"'.format(type(key)), {}
|
||
|
|
|
||
|
|
|
||
|
|
def _sign_request_cryptography(module, payload64, protected64, key_data):
|
||
|
|
sign_payload = "{0}.{1}".format(protected64, payload64).encode('utf8')
|
||
|
|
if isinstance(key_data['key_obj'], cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateKey):
|
||
|
|
padding = cryptography.hazmat.primitives.asymmetric.padding.PKCS1v15()
|
||
|
|
hash = cryptography.hazmat.primitives.hashes.SHA256()
|
||
|
|
signature = key_data['key_obj'].sign(sign_payload, padding, hash)
|
||
|
|
elif isinstance(key_data['key_obj'], cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePrivateKey):
|
||
|
|
if key_data['hash'] == 'sha256':
|
||
|
|
hash = cryptography.hazmat.primitives.hashes.SHA256
|
||
|
|
elif key_data['hash'] == 'sha384':
|
||
|
|
hash = cryptography.hazmat.primitives.hashes.SHA384
|
||
|
|
elif key_data['hash'] == 'sha512':
|
||
|
|
hash = cryptography.hazmat.primitives.hashes.SHA512
|
||
|
|
ecdsa = cryptography.hazmat.primitives.asymmetric.ec.ECDSA(hash())
|
||
|
|
r, s = cryptography.hazmat.primitives.asymmetric.utils.decode_dss_signature(key_data['key_obj'].sign(sign_payload, ecdsa))
|
||
|
|
rr = _pad_hex(r, 2 * key_data['point_size'])
|
||
|
|
ss = _pad_hex(s, 2 * key_data['point_size'])
|
||
|
|
signature = binascii.unhexlify(rr) + binascii.unhexlify(ss)
|
||
|
|
|
||
|
|
return {
|
||
|
|
"protected": protected64,
|
||
|
|
"payload": payload64,
|
||
|
|
"signature": nopad_b64(signature),
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
class ACMEDirectory(object):
|
||
|
|
'''
|
||
|
|
The ACME server directory. Gives access to the available resources,
|
||
|
|
and allows to obtain a Replay-Nonce. The acme_directory URL
|
||
|
|
needs to support unauthenticated GET requests; ACME endpoints
|
||
|
|
requiring authentication are not supported.
|
||
|
|
https://tools.ietf.org/html/rfc8555#section-7.1.1
|
||
|
|
'''
|
||
|
|
|
||
|
|
def __init__(self, module, account):
|
||
|
|
self.module = module
|
||
|
|
self.directory_root = module.params['acme_directory']
|
||
|
|
self.version = module.params['acme_version']
|
||
|
|
|
||
|
|
self.directory, dummy = account.get_request(self.directory_root, get_only=True)
|
||
|
|
|
||
|
|
# Check whether self.version matches what we expect
|
||
|
|
if self.version == 1:
|
||
|
|
for key in ('new-reg', 'new-authz', 'new-cert'):
|
||
|
|
if key not in self.directory:
|
||
|
|
raise ModuleFailException("ACME directory does not seem to follow protocol ACME v1")
|
||
|
|
if self.version == 2:
|
||
|
|
for key in ('newNonce', 'newAccount', 'newOrder'):
|
||
|
|
if key not in self.directory:
|
||
|
|
raise ModuleFailException("ACME directory does not seem to follow protocol ACME v2")
|
||
|
|
|
||
|
|
def __getitem__(self, key):
|
||
|
|
return self.directory[key]
|
||
|
|
|
||
|
|
def get_nonce(self, resource=None):
|
||
|
|
url = self.directory_root if self.version == 1 else self.directory['newNonce']
|
||
|
|
if resource is not None:
|
||
|
|
url = resource
|
||
|
|
dummy, info = fetch_url(self.module, url, method='HEAD')
|
||
|
|
if info['status'] not in (200, 204):
|
||
|
|
raise ModuleFailException("Failed to get replay-nonce, got status {0}".format(info['status']))
|
||
|
|
return info['replay-nonce']
|
||
|
|
|
||
|
|
|
||
|
|
class ACMEAccount(object):
|
||
|
|
'''
|
||
|
|
ACME account object. Handles the authorized communication with the
|
||
|
|
ACME server. Provides access to account bound information like
|
||
|
|
the currently active authorizations and valid certificates
|
||
|
|
'''
|
||
|
|
|
||
|
|
def __init__(self, module):
|
||
|
|
self.module = module
|
||
|
|
self.version = module.params['acme_version']
|
||
|
|
# account_key path and content are mutually exclusive
|
||
|
|
self.key = module.params['account_key_src']
|
||
|
|
self.key_content = module.params['account_key_content']
|
||
|
|
|
||
|
|
# Grab account URI from module parameters.
|
||
|
|
# Make sure empty string is treated as None.
|
||
|
|
self.uri = module.params.get('account_uri') or None
|
||
|
|
|
||
|
|
self._openssl_bin = module.get_bin_path('openssl', True)
|
||
|
|
|
||
|
|
if self.key is not None or self.key_content is not None:
|
||
|
|
error, self.key_data = self.parse_key(self.key, self.key_content)
|
||
|
|
if error:
|
||
|
|
raise ModuleFailException("error while parsing account key: %s" % error)
|
||
|
|
self.jwk = self.key_data['jwk']
|
||
|
|
self.jws_header = {
|
||
|
|
"alg": self.key_data['alg'],
|
||
|
|
"jwk": self.jwk,
|
||
|
|
}
|
||
|
|
if self.uri:
|
||
|
|
# Make sure self.jws_header is updated
|
||
|
|
self.set_account_uri(self.uri)
|
||
|
|
|
||
|
|
self.directory = ACMEDirectory(module, self)
|
||
|
|
|
||
|
|
def get_keyauthorization(self, token):
|
||
|
|
'''
|
||
|
|
Returns the key authorization for the given token
|
||
|
|
https://tools.ietf.org/html/rfc8555#section-8.1
|
||
|
|
'''
|
||
|
|
accountkey_json = json.dumps(self.jwk, sort_keys=True, separators=(',', ':'))
|
||
|
|
thumbprint = nopad_b64(hashlib.sha256(accountkey_json.encode('utf8')).digest())
|
||
|
|
return "{0}.{1}".format(token, thumbprint)
|
||
|
|
|
||
|
|
def parse_key(self, key_file=None, key_content=None):
|
||
|
|
'''
|
||
|
|
Parses an RSA or Elliptic Curve key file in PEM format and returns a pair
|
||
|
|
(error, key_data).
|
||
|
|
'''
|
||
|
|
if key_file is None and key_content is None:
|
||
|
|
raise AssertionError('One of key_file and key_content must be specified!')
|
||
|
|
if HAS_CURRENT_CRYPTOGRAPHY:
|
||
|
|
return _parse_key_cryptography(self.module, key_file, key_content)
|
||
|
|
else:
|
||
|
|
return _parse_key_openssl(self._openssl_bin, self.module, key_file, key_content)
|
||
|
|
|
||
|
|
def sign_request(self, protected, payload, key_data):
|
||
|
|
try:
|
||
|
|
if payload is None:
|
||
|
|
payload64 = ''
|
||
|
|
else:
|
||
|
|
payload64 = nopad_b64(self.module.jsonify(payload).encode('utf8'))
|
||
|
|
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))
|
||
|
|
|
||
|
|
if HAS_CURRENT_CRYPTOGRAPHY:
|
||
|
|
return _sign_request_cryptography(self.module, payload64, protected64, key_data)
|
||
|
|
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):
|
||
|
|
'''
|
||
|
|
Sends a JWS signed HTTP POST request to the ACME server and returns
|
||
|
|
the response as dictionary
|
||
|
|
https://tools.ietf.org/html/rfc8555#section-6.2
|
||
|
|
|
||
|
|
If payload is None, a POST-as-GET is performed.
|
||
|
|
(https://tools.ietf.org/html/rfc8555#section-6.3)
|
||
|
|
'''
|
||
|
|
key_data = key_data or self.key_data
|
||
|
|
jws_header = jws_header or self.jws_header
|
||
|
|
failed_tries = 0
|
||
|
|
while True:
|
||
|
|
protected = copy.deepcopy(jws_header)
|
||
|
|
protected["nonce"] = self.directory.get_nonce()
|
||
|
|
if self.version != 1:
|
||
|
|
protected["url"] = url
|
||
|
|
|
||
|
|
data = self.sign_request(protected, payload, key_data)
|
||
|
|
if self.version == 1:
|
||
|
|
data["header"] = jws_header
|
||
|
|
data = self.module.jsonify(data)
|
||
|
|
|
||
|
|
headers = {
|
||
|
|
'Content-Type': 'application/jose+json',
|
||
|
|
}
|
||
|
|
resp, info = fetch_url(self.module, url, data=data, headers=headers, method='POST')
|
||
|
|
result = {}
|
||
|
|
try:
|
||
|
|
content = resp.read()
|
||
|
|
except AttributeError:
|
||
|
|
content = info.pop('body', None)
|
||
|
|
|
||
|
|
if content or not parse_json_result:
|
||
|
|
if (parse_json_result and info['content-type'].startswith('application/json')) or 400 <= info['status'] < 600:
|
||
|
|
try:
|
||
|
|
decoded_result = self.module.from_json(content.decode('utf8'))
|
||
|
|
# In case of badNonce error, try again (up to 5 times)
|
||
|
|
# (https://tools.ietf.org/html/rfc8555#section-6.7)
|
||
|
|
if (400 <= info['status'] < 600 and
|
||
|
|
decoded_result.get('type') == 'urn:ietf:params:acme:error:badNonce' and
|
||
|
|
failed_tries <= 5):
|
||
|
|
failed_tries += 1
|
||
|
|
continue
|
||
|
|
if parse_json_result:
|
||
|
|
result = decoded_result
|
||
|
|
else:
|
||
|
|
result = content
|
||
|
|
except ValueError:
|
||
|
|
raise ModuleFailException("Failed to parse the ACME response: {0} {1}".format(url, content))
|
||
|
|
else:
|
||
|
|
result = content
|
||
|
|
|
||
|
|
return result, info
|
||
|
|
|
||
|
|
def get_request(self, uri, parse_json_result=True, headers=None, get_only=False):
|
||
|
|
'''
|
||
|
|
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.
|
||
|
|
'''
|
||
|
|
if not get_only and self.version != 1:
|
||
|
|
# Try POST-as-GET
|
||
|
|
content, info = self.send_signed_request(uri, None, parse_json_result=False)
|
||
|
|
if info['status'] == 405:
|
||
|
|
# Instead, do unauthenticated GET
|
||
|
|
get_only = True
|
||
|
|
else:
|
||
|
|
# Do unauthenticated GET
|
||
|
|
get_only = True
|
||
|
|
|
||
|
|
if get_only:
|
||
|
|
# Perform unauthenticated GET
|
||
|
|
resp, info = fetch_url(self.module, uri, method='GET', headers=headers)
|
||
|
|
|
||
|
|
try:
|
||
|
|
content = resp.read()
|
||
|
|
except AttributeError:
|
||
|
|
content = info.pop('body', None)
|
||
|
|
|
||
|
|
# Process result
|
||
|
|
if parse_json_result:
|
||
|
|
result = {}
|
||
|
|
if content:
|
||
|
|
if info['content-type'].startswith('application/json'):
|
||
|
|
try:
|
||
|
|
result = self.module.from_json(content.decode('utf8'))
|
||
|
|
except ValueError:
|
||
|
|
raise ModuleFailException("Failed to parse the ACME response: {0} {1}".format(uri, content))
|
||
|
|
else:
|
||
|
|
result = content
|
||
|
|
else:
|
||
|
|
result = content
|
||
|
|
|
||
|
|
if info['status'] >= 400:
|
||
|
|
raise ModuleFailException("ACME request failed: CODE: {0} RESULT: {1}".format(info['status'], result))
|
||
|
|
return result, info
|
||
|
|
|
||
|
|
def set_account_uri(self, uri):
|
||
|
|
'''
|
||
|
|
Set account URI. For ACME v2, it needs to be used to sending signed
|
||
|
|
requests.
|
||
|
|
'''
|
||
|
|
self.uri = uri
|
||
|
|
if self.version != 1:
|
||
|
|
self.jws_header.pop('jwk')
|
||
|
|
self.jws_header['kid'] = self.uri
|
||
|
|
|
||
|
|
def _new_reg(self, contact=None, agreement=None, terms_agreed=False, allow_creation=True):
|
||
|
|
'''
|
||
|
|
Registers a new ACME account. Returns True if the account was
|
||
|
|
created and False if it already existed (e.g. it was not newly
|
||
|
|
created).
|
||
|
|
https://tools.ietf.org/html/rfc8555#section-7.3
|
||
|
|
'''
|
||
|
|
contact = [] if contact is None else contact
|
||
|
|
|
||
|
|
if self.version == 1:
|
||
|
|
new_reg = {
|
||
|
|
'resource': 'new-reg',
|
||
|
|
'contact': contact
|
||
|
|
}
|
||
|
|
if agreement:
|
||
|
|
new_reg['agreement'] = agreement
|
||
|
|
else:
|
||
|
|
new_reg['agreement'] = self.directory['meta']['terms-of-service']
|
||
|
|
url = self.directory['new-reg']
|
||
|
|
else:
|
||
|
|
new_reg = {
|
||
|
|
'contact': contact
|
||
|
|
}
|
||
|
|
if not allow_creation:
|
||
|
|
new_reg['onlyReturnExisting'] = True
|
||
|
|
if terms_agreed:
|
||
|
|
new_reg['termsOfServiceAgreed'] = True
|
||
|
|
url = self.directory['newAccount']
|
||
|
|
|
||
|
|
result, info = self.send_signed_request(url, new_reg)
|
||
|
|
|
||
|
|
if info['status'] in ([200, 201] if self.version == 1 else [201]):
|
||
|
|
# Account did not exist
|
||
|
|
if 'location' in info:
|
||
|
|
self.set_account_uri(info['location'])
|
||
|
|
return True
|
||
|
|
elif info['status'] == (409 if self.version == 1 else 200):
|
||
|
|
# Account did exist
|
||
|
|
if result.get('status') == 'deactivated':
|
||
|
|
# A probable bug in Pebble (https://github.com/letsencrypt/pebble/issues/179)
|
||
|
|
# and Boulder: this should not return a valid account object according to
|
||
|
|
# https://tools.ietf.org/html/rfc8555#section-7.3.6:
|
||
|
|
# "Once an account is deactivated, the server MUST NOT accept further
|
||
|
|
# requests authorized by that account's key."
|
||
|
|
if not allow_creation:
|
||
|
|
return False
|
||
|
|
else:
|
||
|
|
raise ModuleFailException("Account is deactivated")
|
||
|
|
if 'location' in info:
|
||
|
|
self.set_account_uri(info['location'])
|
||
|
|
return False
|
||
|
|
elif info['status'] == 400 and result['type'] == 'urn:ietf:params:acme:error:accountDoesNotExist' and not allow_creation:
|
||
|
|
# Account does not exist (and we didn't try to create it)
|
||
|
|
return False
|
||
|
|
else:
|
||
|
|
raise ModuleFailException("Error registering: {0} {1}".format(info['status'], result))
|
||
|
|
|
||
|
|
def get_account_data(self):
|
||
|
|
'''
|
||
|
|
Retrieve account information. Can only be called when the account
|
||
|
|
URI is already known (such as after calling init_account).
|
||
|
|
Return None if the account was deactivated, or a dict otherwise.
|
||
|
|
'''
|
||
|
|
if self.uri is None:
|
||
|
|
raise ModuleFailException("Account URI unknown")
|
||
|
|
if self.version == 1:
|
||
|
|
data = {}
|
||
|
|
data['resource'] = 'reg'
|
||
|
|
result, info = self.send_signed_request(self.uri, data)
|
||
|
|
else:
|
||
|
|
# try POST-as-GET first (draft-15 or newer)
|
||
|
|
data = None
|
||
|
|
result, info = self.send_signed_request(self.uri, data)
|
||
|
|
# check whether that failed with a malformed request error
|
||
|
|
if info['status'] >= 400 and result.get('type') == 'urn:ietf:params:acme:error:malformed':
|
||
|
|
# retry as a regular POST (with no changed data) for pre-draft-15 ACME servers
|
||
|
|
data = {}
|
||
|
|
result, info = self.send_signed_request(self.uri, data)
|
||
|
|
if info['status'] in (400, 403) and result.get('type') == 'urn:ietf:params:acme:error:unauthorized':
|
||
|
|
# Returned when account is deactivated
|
||
|
|
return None
|
||
|
|
if info['status'] in (400, 404) and result.get('type') == 'urn:ietf:params:acme:error:accountDoesNotExist':
|
||
|
|
# Returned when account does not exist
|
||
|
|
return None
|
||
|
|
if info['status'] < 200 or info['status'] >= 300:
|
||
|
|
raise ModuleFailException("Error getting account data from {2}: {0} {1}".format(info['status'], result, self.uri))
|
||
|
|
return result
|
||
|
|
|
||
|
|
def init_account(self, contact, agreement=None, terms_agreed=False, allow_creation=True, update_contact=True, remove_account_uri_if_not_exists=False):
|
||
|
|
'''
|
||
|
|
Create or update an account on the ACME server. For ACME v1,
|
||
|
|
as the only way (without knowing an account URI) to test if an
|
||
|
|
account exists is to try and create one with the provided account
|
||
|
|
key, this method will always result in an account being present
|
||
|
|
(except on error situations). For ACME v2, a new account will
|
||
|
|
only be created if allow_creation is set to True.
|
||
|
|
|
||
|
|
For ACME v2, check_mode is fully respected. For ACME v1, the account
|
||
|
|
might be created if it does not yet exist.
|
||
|
|
|
||
|
|
If the account already exists and if update_contact is set to
|
||
|
|
True, this method will update the contact information.
|
||
|
|
|
||
|
|
Return True in case something changed (account was created, contact
|
||
|
|
info updated) or would be changed (check_mode). The account URI
|
||
|
|
will be stored in self.uri; if it is None, the account does not
|
||
|
|
exist.
|
||
|
|
|
||
|
|
https://tools.ietf.org/html/rfc8555#section-7.3
|
||
|
|
'''
|
||
|
|
|
||
|
|
new_account = True
|
||
|
|
changed = False
|
||
|
|
if self.uri is not None:
|
||
|
|
new_account = False
|
||
|
|
if not update_contact:
|
||
|
|
# Verify that the account key belongs to the URI.
|
||
|
|
# (If update_contact is True, this will be done below.)
|
||
|
|
if self.get_account_data() is None:
|
||
|
|
if remove_account_uri_if_not_exists and not allow_creation:
|
||
|
|
self.uri = None
|
||
|
|
return False
|
||
|
|
raise ModuleFailException("Account is deactivated or does not exist!")
|
||
|
|
else:
|
||
|
|
new_account = self._new_reg(
|
||
|
|
contact,
|
||
|
|
agreement=agreement,
|
||
|
|
terms_agreed=terms_agreed,
|
||
|
|
allow_creation=allow_creation and not self.module.check_mode
|
||
|
|
)
|
||
|
|
if self.module.check_mode and self.uri is None and allow_creation:
|
||
|
|
return True
|
||
|
|
if not new_account and self.uri and update_contact:
|
||
|
|
result = self.get_account_data()
|
||
|
|
if result is None:
|
||
|
|
if not allow_creation:
|
||
|
|
self.uri = None
|
||
|
|
return False
|
||
|
|
raise ModuleFailException("Account is deactivated or does not exist!")
|
||
|
|
|
||
|
|
# ...and check if update is necessary
|
||
|
|
if result.get('contact', []) != contact:
|
||
|
|
if not self.module.check_mode:
|
||
|
|
upd_reg = result
|
||
|
|
upd_reg['contact'] = contact
|
||
|
|
result, dummy = self.send_signed_request(self.uri, upd_reg)
|
||
|
|
changed = True
|
||
|
|
return new_account or changed
|
||
|
|
|
||
|
|
|
||
|
|
def cryptography_get_csr_domains(module, csr_filename):
|
||
|
|
'''
|
||
|
|
Return a set of requested domains (CN and SANs) for the CSR.
|
||
|
|
'''
|
||
|
|
domains = set([])
|
||
|
|
csr = cryptography.x509.load_pem_x509_csr(read_file(csr_filename), _cryptography_backend)
|
||
|
|
for sub in csr.subject:
|
||
|
|
if sub.oid == cryptography.x509.oid.NameOID.COMMON_NAME:
|
||
|
|
domains.add(sub.value)
|
||
|
|
for extension in csr.extensions:
|
||
|
|
if extension.oid == cryptography.x509.oid.ExtensionOID.SUBJECT_ALTERNATIVE_NAME:
|
||
|
|
for name in extension.value:
|
||
|
|
if isinstance(name, cryptography.x509.DNSName):
|
||
|
|
domains.add(name.value)
|
||
|
|
return domains
|
||
|
|
|
||
|
|
|
||
|
|
def cryptography_get_cert_days(module, cert_file):
|
||
|
|
'''
|
||
|
|
Return the days the certificate in cert_file remains valid and -1
|
||
|
|
if the file was not found. If cert_file contains more than one
|
||
|
|
certificate, only the first one will be considered.
|
||
|
|
'''
|
||
|
|
if not os.path.exists(cert_file):
|
||
|
|
return -1
|
||
|
|
|
||
|
|
try:
|
||
|
|
cert = cryptography.x509.load_pem_x509_certificate(read_file(cert_file), _cryptography_backend)
|
||
|
|
except Exception as e:
|
||
|
|
raise ModuleFailException('Cannot parse certificate {0}: {1}'.format(cert_file, e))
|
||
|
|
now = datetime.datetime.now()
|
||
|
|
return (cert.not_valid_after - now).days
|
||
|
|
|
||
|
|
|
||
|
|
def set_crypto_backend(module):
|
||
|
|
'''
|
||
|
|
Sets which crypto backend to use (default: auto detection).
|
||
|
|
|
||
|
|
Does not care whether a new enough cryptoraphy is available or not. Must
|
||
|
|
be called before any real stuff is done which might evaluate
|
||
|
|
``HAS_CURRENT_CRYPTOGRAPHY``.
|
||
|
|
'''
|
||
|
|
global HAS_CURRENT_CRYPTOGRAPHY
|
||
|
|
# Choose backend
|
||
|
|
backend = module.params['select_crypto_backend']
|
||
|
|
if backend == 'auto':
|
||
|
|
pass
|
||
|
|
elif backend == 'openssl':
|
||
|
|
HAS_CURRENT_CRYPTOGRAPHY = False
|
||
|
|
elif backend == 'cryptography':
|
||
|
|
try:
|
||
|
|
cryptography.__version__
|
||
|
|
except Exception as _:
|
||
|
|
module.fail_json(msg='Cannot find cryptography module!')
|
||
|
|
HAS_CURRENT_CRYPTOGRAPHY = True
|
||
|
|
else:
|
||
|
|
module.fail_json(msg='Unknown crypto backend "{0}"!'.format(backend))
|
||
|
|
# Inform about choices
|
||
|
|
if HAS_CURRENT_CRYPTOGRAPHY:
|
||
|
|
module.debug('Using cryptography backend (library version {0})'.format(CRYPTOGRAPHY_VERSION))
|
||
|
|
else:
|
||
|
|
module.debug('Using OpenSSL binary backend')
|