925 lines
28 KiB
Python
925 lines
28 KiB
Python
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# This file is dual licensed under the terms of the Apache License, Version
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# 2.0, and the BSD License. See the LICENSE file in the root of this repository
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# for complete details.
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from __future__ import absolute_import, division, print_function
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import abc
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import hashlib
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import ipaddress
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from enum import Enum
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from pyasn1.codec.der import decoder
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from pyasn1.type import namedtype, univ
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import six
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from cryptography import utils
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from cryptography.hazmat.primitives import constant_time, serialization
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from cryptography.x509.general_name import GeneralName, IPAddress, OtherName
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from cryptography.x509.name import Name
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from cryptography.x509.oid import (
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AuthorityInformationAccessOID, ExtensionOID, ObjectIdentifier
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)
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class _SubjectPublicKeyInfo(univ.Sequence):
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componentType = namedtype.NamedTypes(
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namedtype.NamedType('algorithm', univ.Sequence()),
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namedtype.NamedType('subjectPublicKey', univ.BitString())
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)
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def _key_identifier_from_public_key(public_key):
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# This is a very slow way to do this.
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serialized = public_key.public_bytes(
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serialization.Encoding.DER,
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serialization.PublicFormat.SubjectPublicKeyInfo
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)
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spki, remaining = decoder.decode(
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serialized, asn1Spec=_SubjectPublicKeyInfo()
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)
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assert not remaining
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# the univ.BitString object is a tuple of bits. We need bytes and
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# pyasn1 really doesn't want to give them to us. To get it we'll
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# build an integer and convert that to bytes.
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bits = 0
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for bit in spki.getComponentByName("subjectPublicKey"):
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bits = bits << 1 | bit
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data = utils.int_to_bytes(bits)
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return hashlib.sha1(data).digest()
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class DuplicateExtension(Exception):
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def __init__(self, msg, oid):
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super(DuplicateExtension, self).__init__(msg)
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self.oid = oid
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class UnsupportedExtension(Exception):
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def __init__(self, msg, oid):
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super(UnsupportedExtension, self).__init__(msg)
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self.oid = oid
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class ExtensionNotFound(Exception):
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def __init__(self, msg, oid):
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super(ExtensionNotFound, self).__init__(msg)
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self.oid = oid
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@six.add_metaclass(abc.ABCMeta)
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class ExtensionType(object):
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@abc.abstractproperty
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def oid(self):
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"""
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Returns the oid associated with the given extension type.
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"""
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class Extensions(object):
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def __init__(self, extensions):
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self._extensions = extensions
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def get_extension_for_oid(self, oid):
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for ext in self:
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if ext.oid == oid:
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return ext
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raise ExtensionNotFound("No {0} extension was found".format(oid), oid)
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def get_extension_for_class(self, extclass):
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for ext in self:
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if isinstance(ext.value, extclass):
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return ext
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raise ExtensionNotFound(
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"No {0} extension was found".format(extclass), extclass.oid
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)
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def __iter__(self):
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return iter(self._extensions)
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def __len__(self):
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return len(self._extensions)
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def __repr__(self):
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return (
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"<Extensions({0})>".format(self._extensions)
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)
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@utils.register_interface(ExtensionType)
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class AuthorityKeyIdentifier(object):
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oid = ExtensionOID.AUTHORITY_KEY_IDENTIFIER
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def __init__(self, key_identifier, authority_cert_issuer,
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authority_cert_serial_number):
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if authority_cert_issuer or authority_cert_serial_number:
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if not authority_cert_issuer or not authority_cert_serial_number:
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raise ValueError(
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"authority_cert_issuer and authority_cert_serial_number "
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"must both be present or both None"
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)
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if not all(
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isinstance(x, GeneralName) for x in authority_cert_issuer
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):
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raise TypeError(
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"authority_cert_issuer must be a list of GeneralName "
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"objects"
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)
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if not isinstance(authority_cert_serial_number, six.integer_types):
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raise TypeError(
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"authority_cert_serial_number must be an integer"
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)
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self._key_identifier = key_identifier
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self._authority_cert_issuer = authority_cert_issuer
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self._authority_cert_serial_number = authority_cert_serial_number
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@classmethod
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def from_issuer_public_key(cls, public_key):
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digest = _key_identifier_from_public_key(public_key)
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return cls(
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key_identifier=digest,
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authority_cert_issuer=None,
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authority_cert_serial_number=None
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)
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def __repr__(self):
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return (
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"<AuthorityKeyIdentifier(key_identifier={0.key_identifier!r}, "
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"authority_cert_issuer={0.authority_cert_issuer}, "
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"authority_cert_serial_number={0.authority_cert_serial_number}"
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")>".format(self)
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)
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def __eq__(self, other):
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if not isinstance(other, AuthorityKeyIdentifier):
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return NotImplemented
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return (
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self.key_identifier == other.key_identifier and
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self.authority_cert_issuer == other.authority_cert_issuer and
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self.authority_cert_serial_number ==
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other.authority_cert_serial_number
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)
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def __ne__(self, other):
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return not self == other
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key_identifier = utils.read_only_property("_key_identifier")
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authority_cert_issuer = utils.read_only_property("_authority_cert_issuer")
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authority_cert_serial_number = utils.read_only_property(
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"_authority_cert_serial_number"
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)
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@utils.register_interface(ExtensionType)
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class SubjectKeyIdentifier(object):
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oid = ExtensionOID.SUBJECT_KEY_IDENTIFIER
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def __init__(self, digest):
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self._digest = digest
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@classmethod
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def from_public_key(cls, public_key):
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return cls(_key_identifier_from_public_key(public_key))
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digest = utils.read_only_property("_digest")
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def __repr__(self):
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return "<SubjectKeyIdentifier(digest={0!r})>".format(self.digest)
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def __eq__(self, other):
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if not isinstance(other, SubjectKeyIdentifier):
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return NotImplemented
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return constant_time.bytes_eq(self.digest, other.digest)
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def __ne__(self, other):
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return not self == other
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@utils.register_interface(ExtensionType)
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class AuthorityInformationAccess(object):
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oid = ExtensionOID.AUTHORITY_INFORMATION_ACCESS
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def __init__(self, descriptions):
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if not all(isinstance(x, AccessDescription) for x in descriptions):
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raise TypeError(
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"Every item in the descriptions list must be an "
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"AccessDescription"
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)
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self._descriptions = descriptions
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def __iter__(self):
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return iter(self._descriptions)
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def __len__(self):
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return len(self._descriptions)
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def __repr__(self):
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return "<AuthorityInformationAccess({0})>".format(self._descriptions)
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def __eq__(self, other):
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if not isinstance(other, AuthorityInformationAccess):
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return NotImplemented
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return self._descriptions == other._descriptions
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def __ne__(self, other):
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return not self == other
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class AccessDescription(object):
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def __init__(self, access_method, access_location):
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if not (access_method == AuthorityInformationAccessOID.OCSP or
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access_method == AuthorityInformationAccessOID.CA_ISSUERS):
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raise ValueError(
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"access_method must be OID_OCSP or OID_CA_ISSUERS"
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)
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if not isinstance(access_location, GeneralName):
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raise TypeError("access_location must be a GeneralName")
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self._access_method = access_method
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self._access_location = access_location
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def __repr__(self):
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return (
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"<AccessDescription(access_method={0.access_method}, access_locati"
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"on={0.access_location})>".format(self)
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)
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def __eq__(self, other):
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if not isinstance(other, AccessDescription):
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return NotImplemented
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return (
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self.access_method == other.access_method and
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self.access_location == other.access_location
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)
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def __ne__(self, other):
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return not self == other
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access_method = utils.read_only_property("_access_method")
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access_location = utils.read_only_property("_access_location")
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@utils.register_interface(ExtensionType)
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class BasicConstraints(object):
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oid = ExtensionOID.BASIC_CONSTRAINTS
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def __init__(self, ca, path_length):
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if not isinstance(ca, bool):
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raise TypeError("ca must be a boolean value")
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if path_length is not None and not ca:
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raise ValueError("path_length must be None when ca is False")
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if (
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path_length is not None and
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(not isinstance(path_length, six.integer_types) or path_length < 0)
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):
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raise TypeError(
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"path_length must be a non-negative integer or None"
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)
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self._ca = ca
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self._path_length = path_length
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ca = utils.read_only_property("_ca")
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path_length = utils.read_only_property("_path_length")
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def __repr__(self):
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return ("<BasicConstraints(ca={0.ca}, "
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"path_length={0.path_length})>").format(self)
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def __eq__(self, other):
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if not isinstance(other, BasicConstraints):
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return NotImplemented
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return self.ca == other.ca and self.path_length == other.path_length
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def __ne__(self, other):
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return not self == other
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@utils.register_interface(ExtensionType)
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class CRLDistributionPoints(object):
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oid = ExtensionOID.CRL_DISTRIBUTION_POINTS
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def __init__(self, distribution_points):
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if not all(
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isinstance(x, DistributionPoint) for x in distribution_points
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):
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raise TypeError(
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"distribution_points must be a list of DistributionPoint "
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"objects"
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)
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self._distribution_points = distribution_points
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def __iter__(self):
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return iter(self._distribution_points)
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def __len__(self):
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return len(self._distribution_points)
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def __repr__(self):
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return "<CRLDistributionPoints({0})>".format(self._distribution_points)
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def __eq__(self, other):
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if not isinstance(other, CRLDistributionPoints):
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return NotImplemented
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return self._distribution_points == other._distribution_points
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def __ne__(self, other):
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return not self == other
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class DistributionPoint(object):
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def __init__(self, full_name, relative_name, reasons, crl_issuer):
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if full_name and relative_name:
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raise ValueError(
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"You cannot provide both full_name and relative_name, at "
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"least one must be None."
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)
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if full_name and not all(
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isinstance(x, GeneralName) for x in full_name
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):
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raise TypeError(
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"full_name must be a list of GeneralName objects"
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)
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if relative_name and not isinstance(relative_name, Name):
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raise TypeError("relative_name must be a Name")
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if crl_issuer and not all(
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isinstance(x, GeneralName) for x in crl_issuer
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):
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raise TypeError(
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"crl_issuer must be None or a list of general names"
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)
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if reasons and (not isinstance(reasons, frozenset) or not all(
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isinstance(x, ReasonFlags) for x in reasons
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)):
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raise TypeError("reasons must be None or frozenset of ReasonFlags")
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if reasons and (
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ReasonFlags.unspecified in reasons or
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ReasonFlags.remove_from_crl in reasons
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):
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raise ValueError(
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"unspecified and remove_from_crl are not valid reasons in a "
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"DistributionPoint"
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)
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if reasons and not crl_issuer and not (full_name or relative_name):
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raise ValueError(
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"You must supply crl_issuer, full_name, or relative_name when "
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"reasons is not None"
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)
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self._full_name = full_name
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self._relative_name = relative_name
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self._reasons = reasons
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self._crl_issuer = crl_issuer
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def __repr__(self):
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return (
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"<DistributionPoint(full_name={0.full_name}, relative_name={0.rela"
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||
|
|
"tive_name}, reasons={0.reasons}, crl_issuer={0.crl_is"
|
||
|
|
"suer})>".format(self)
|
||
|
|
)
|
||
|
|
|
||
|
|
def __eq__(self, other):
|
||
|
|
if not isinstance(other, DistributionPoint):
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
return (
|
||
|
|
self.full_name == other.full_name and
|
||
|
|
self.relative_name == other.relative_name and
|
||
|
|
self.reasons == other.reasons and
|
||
|
|
self.crl_issuer == other.crl_issuer
|
||
|
|
)
|
||
|
|
|
||
|
|
def __ne__(self, other):
|
||
|
|
return not self == other
|
||
|
|
|
||
|
|
full_name = utils.read_only_property("_full_name")
|
||
|
|
relative_name = utils.read_only_property("_relative_name")
|
||
|
|
reasons = utils.read_only_property("_reasons")
|
||
|
|
crl_issuer = utils.read_only_property("_crl_issuer")
|
||
|
|
|
||
|
|
|
||
|
|
class ReasonFlags(Enum):
|
||
|
|
unspecified = "unspecified"
|
||
|
|
key_compromise = "keyCompromise"
|
||
|
|
ca_compromise = "cACompromise"
|
||
|
|
affiliation_changed = "affiliationChanged"
|
||
|
|
superseded = "superseded"
|
||
|
|
cessation_of_operation = "cessationOfOperation"
|
||
|
|
certificate_hold = "certificateHold"
|
||
|
|
privilege_withdrawn = "privilegeWithdrawn"
|
||
|
|
aa_compromise = "aACompromise"
|
||
|
|
remove_from_crl = "removeFromCRL"
|
||
|
|
|
||
|
|
|
||
|
|
@utils.register_interface(ExtensionType)
|
||
|
|
class CertificatePolicies(object):
|
||
|
|
oid = ExtensionOID.CERTIFICATE_POLICIES
|
||
|
|
|
||
|
|
def __init__(self, policies):
|
||
|
|
if not all(isinstance(x, PolicyInformation) for x in policies):
|
||
|
|
raise TypeError(
|
||
|
|
"Every item in the policies list must be a "
|
||
|
|
"PolicyInformation"
|
||
|
|
)
|
||
|
|
|
||
|
|
self._policies = policies
|
||
|
|
|
||
|
|
def __iter__(self):
|
||
|
|
return iter(self._policies)
|
||
|
|
|
||
|
|
def __len__(self):
|
||
|
|
return len(self._policies)
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
return "<CertificatePolicies({0})>".format(self._policies)
|
||
|
|
|
||
|
|
def __eq__(self, other):
|
||
|
|
if not isinstance(other, CertificatePolicies):
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
return self._policies == other._policies
|
||
|
|
|
||
|
|
def __ne__(self, other):
|
||
|
|
return not self == other
|
||
|
|
|
||
|
|
|
||
|
|
class PolicyInformation(object):
|
||
|
|
def __init__(self, policy_identifier, policy_qualifiers):
|
||
|
|
if not isinstance(policy_identifier, ObjectIdentifier):
|
||
|
|
raise TypeError("policy_identifier must be an ObjectIdentifier")
|
||
|
|
|
||
|
|
self._policy_identifier = policy_identifier
|
||
|
|
if policy_qualifiers and not all(
|
||
|
|
isinstance(
|
||
|
|
x, (six.text_type, UserNotice)
|
||
|
|
) for x in policy_qualifiers
|
||
|
|
):
|
||
|
|
raise TypeError(
|
||
|
|
"policy_qualifiers must be a list of strings and/or UserNotice"
|
||
|
|
" objects or None"
|
||
|
|
)
|
||
|
|
|
||
|
|
self._policy_qualifiers = policy_qualifiers
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
return (
|
||
|
|
"<PolicyInformation(policy_identifier={0.policy_identifier}, polic"
|
||
|
|
"y_qualifiers={0.policy_qualifiers})>".format(self)
|
||
|
|
)
|
||
|
|
|
||
|
|
def __eq__(self, other):
|
||
|
|
if not isinstance(other, PolicyInformation):
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
return (
|
||
|
|
self.policy_identifier == other.policy_identifier and
|
||
|
|
self.policy_qualifiers == other.policy_qualifiers
|
||
|
|
)
|
||
|
|
|
||
|
|
def __ne__(self, other):
|
||
|
|
return not self == other
|
||
|
|
|
||
|
|
policy_identifier = utils.read_only_property("_policy_identifier")
|
||
|
|
policy_qualifiers = utils.read_only_property("_policy_qualifiers")
|
||
|
|
|
||
|
|
|
||
|
|
class UserNotice(object):
|
||
|
|
def __init__(self, notice_reference, explicit_text):
|
||
|
|
if notice_reference and not isinstance(
|
||
|
|
notice_reference, NoticeReference
|
||
|
|
):
|
||
|
|
raise TypeError(
|
||
|
|
"notice_reference must be None or a NoticeReference"
|
||
|
|
)
|
||
|
|
|
||
|
|
self._notice_reference = notice_reference
|
||
|
|
self._explicit_text = explicit_text
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
return (
|
||
|
|
"<UserNotice(notice_reference={0.notice_reference}, explicit_text="
|
||
|
|
"{0.explicit_text!r})>".format(self)
|
||
|
|
)
|
||
|
|
|
||
|
|
def __eq__(self, other):
|
||
|
|
if not isinstance(other, UserNotice):
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
return (
|
||
|
|
self.notice_reference == other.notice_reference and
|
||
|
|
self.explicit_text == other.explicit_text
|
||
|
|
)
|
||
|
|
|
||
|
|
def __ne__(self, other):
|
||
|
|
return not self == other
|
||
|
|
|
||
|
|
notice_reference = utils.read_only_property("_notice_reference")
|
||
|
|
explicit_text = utils.read_only_property("_explicit_text")
|
||
|
|
|
||
|
|
|
||
|
|
class NoticeReference(object):
|
||
|
|
def __init__(self, organization, notice_numbers):
|
||
|
|
self._organization = organization
|
||
|
|
if not isinstance(notice_numbers, list) or not all(
|
||
|
|
isinstance(x, int) for x in notice_numbers
|
||
|
|
):
|
||
|
|
raise TypeError(
|
||
|
|
"notice_numbers must be a list of integers"
|
||
|
|
)
|
||
|
|
|
||
|
|
self._notice_numbers = notice_numbers
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
return (
|
||
|
|
"<NoticeReference(organization={0.organization!r}, notice_numbers="
|
||
|
|
"{0.notice_numbers})>".format(self)
|
||
|
|
)
|
||
|
|
|
||
|
|
def __eq__(self, other):
|
||
|
|
if not isinstance(other, NoticeReference):
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
return (
|
||
|
|
self.organization == other.organization and
|
||
|
|
self.notice_numbers == other.notice_numbers
|
||
|
|
)
|
||
|
|
|
||
|
|
def __ne__(self, other):
|
||
|
|
return not self == other
|
||
|
|
|
||
|
|
organization = utils.read_only_property("_organization")
|
||
|
|
notice_numbers = utils.read_only_property("_notice_numbers")
|
||
|
|
|
||
|
|
|
||
|
|
@utils.register_interface(ExtensionType)
|
||
|
|
class ExtendedKeyUsage(object):
|
||
|
|
oid = ExtensionOID.EXTENDED_KEY_USAGE
|
||
|
|
|
||
|
|
def __init__(self, usages):
|
||
|
|
if not all(isinstance(x, ObjectIdentifier) for x in usages):
|
||
|
|
raise TypeError(
|
||
|
|
"Every item in the usages list must be an ObjectIdentifier"
|
||
|
|
)
|
||
|
|
|
||
|
|
self._usages = usages
|
||
|
|
|
||
|
|
def __iter__(self):
|
||
|
|
return iter(self._usages)
|
||
|
|
|
||
|
|
def __len__(self):
|
||
|
|
return len(self._usages)
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
return "<ExtendedKeyUsage({0})>".format(self._usages)
|
||
|
|
|
||
|
|
def __eq__(self, other):
|
||
|
|
if not isinstance(other, ExtendedKeyUsage):
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
return self._usages == other._usages
|
||
|
|
|
||
|
|
def __ne__(self, other):
|
||
|
|
return not self == other
|
||
|
|
|
||
|
|
|
||
|
|
@utils.register_interface(ExtensionType)
|
||
|
|
class OCSPNoCheck(object):
|
||
|
|
oid = ExtensionOID.OCSP_NO_CHECK
|
||
|
|
|
||
|
|
|
||
|
|
@utils.register_interface(ExtensionType)
|
||
|
|
class InhibitAnyPolicy(object):
|
||
|
|
oid = ExtensionOID.INHIBIT_ANY_POLICY
|
||
|
|
|
||
|
|
def __init__(self, skip_certs):
|
||
|
|
if not isinstance(skip_certs, six.integer_types):
|
||
|
|
raise TypeError("skip_certs must be an integer")
|
||
|
|
|
||
|
|
if skip_certs < 0:
|
||
|
|
raise ValueError("skip_certs must be a non-negative integer")
|
||
|
|
|
||
|
|
self._skip_certs = skip_certs
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
return "<InhibitAnyPolicy(skip_certs={0.skip_certs})>".format(self)
|
||
|
|
|
||
|
|
def __eq__(self, other):
|
||
|
|
if not isinstance(other, InhibitAnyPolicy):
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
return self.skip_certs == other.skip_certs
|
||
|
|
|
||
|
|
def __ne__(self, other):
|
||
|
|
return not self == other
|
||
|
|
|
||
|
|
skip_certs = utils.read_only_property("_skip_certs")
|
||
|
|
|
||
|
|
|
||
|
|
@utils.register_interface(ExtensionType)
|
||
|
|
class KeyUsage(object):
|
||
|
|
oid = ExtensionOID.KEY_USAGE
|
||
|
|
|
||
|
|
def __init__(self, digital_signature, content_commitment, key_encipherment,
|
||
|
|
data_encipherment, key_agreement, key_cert_sign, crl_sign,
|
||
|
|
encipher_only, decipher_only):
|
||
|
|
if not key_agreement and (encipher_only or decipher_only):
|
||
|
|
raise ValueError(
|
||
|
|
"encipher_only and decipher_only can only be true when "
|
||
|
|
"key_agreement is true"
|
||
|
|
)
|
||
|
|
|
||
|
|
self._digital_signature = digital_signature
|
||
|
|
self._content_commitment = content_commitment
|
||
|
|
self._key_encipherment = key_encipherment
|
||
|
|
self._data_encipherment = data_encipherment
|
||
|
|
self._key_agreement = key_agreement
|
||
|
|
self._key_cert_sign = key_cert_sign
|
||
|
|
self._crl_sign = crl_sign
|
||
|
|
self._encipher_only = encipher_only
|
||
|
|
self._decipher_only = decipher_only
|
||
|
|
|
||
|
|
digital_signature = utils.read_only_property("_digital_signature")
|
||
|
|
content_commitment = utils.read_only_property("_content_commitment")
|
||
|
|
key_encipherment = utils.read_only_property("_key_encipherment")
|
||
|
|
data_encipherment = utils.read_only_property("_data_encipherment")
|
||
|
|
key_agreement = utils.read_only_property("_key_agreement")
|
||
|
|
key_cert_sign = utils.read_only_property("_key_cert_sign")
|
||
|
|
crl_sign = utils.read_only_property("_crl_sign")
|
||
|
|
|
||
|
|
@property
|
||
|
|
def encipher_only(self):
|
||
|
|
if not self.key_agreement:
|
||
|
|
raise ValueError(
|
||
|
|
"encipher_only is undefined unless key_agreement is true"
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
return self._encipher_only
|
||
|
|
|
||
|
|
@property
|
||
|
|
def decipher_only(self):
|
||
|
|
if not self.key_agreement:
|
||
|
|
raise ValueError(
|
||
|
|
"decipher_only is undefined unless key_agreement is true"
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
return self._decipher_only
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
try:
|
||
|
|
encipher_only = self.encipher_only
|
||
|
|
decipher_only = self.decipher_only
|
||
|
|
except ValueError:
|
||
|
|
encipher_only = None
|
||
|
|
decipher_only = None
|
||
|
|
|
||
|
|
return ("<KeyUsage(digital_signature={0.digital_signature}, "
|
||
|
|
"content_commitment={0.content_commitment}, "
|
||
|
|
"key_encipherment={0.key_encipherment}, "
|
||
|
|
"data_encipherment={0.data_encipherment}, "
|
||
|
|
"key_agreement={0.key_agreement}, "
|
||
|
|
"key_cert_sign={0.key_cert_sign}, crl_sign={0.crl_sign}, "
|
||
|
|
"encipher_only={1}, decipher_only={2})>").format(
|
||
|
|
self, encipher_only, decipher_only)
|
||
|
|
|
||
|
|
def __eq__(self, other):
|
||
|
|
if not isinstance(other, KeyUsage):
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
return (
|
||
|
|
self.digital_signature == other.digital_signature and
|
||
|
|
self.content_commitment == other.content_commitment and
|
||
|
|
self.key_encipherment == other.key_encipherment and
|
||
|
|
self.data_encipherment == other.data_encipherment and
|
||
|
|
self.key_agreement == other.key_agreement and
|
||
|
|
self.key_cert_sign == other.key_cert_sign and
|
||
|
|
self.crl_sign == other.crl_sign and
|
||
|
|
self._encipher_only == other._encipher_only and
|
||
|
|
self._decipher_only == other._decipher_only
|
||
|
|
)
|
||
|
|
|
||
|
|
def __ne__(self, other):
|
||
|
|
return not self == other
|
||
|
|
|
||
|
|
|
||
|
|
@utils.register_interface(ExtensionType)
|
||
|
|
class NameConstraints(object):
|
||
|
|
oid = ExtensionOID.NAME_CONSTRAINTS
|
||
|
|
|
||
|
|
def __init__(self, permitted_subtrees, excluded_subtrees):
|
||
|
|
if permitted_subtrees is not None:
|
||
|
|
if not all(
|
||
|
|
isinstance(x, GeneralName) for x in permitted_subtrees
|
||
|
|
):
|
||
|
|
raise TypeError(
|
||
|
|
"permitted_subtrees must be a list of GeneralName objects "
|
||
|
|
"or None"
|
||
|
|
)
|
||
|
|
|
||
|
|
self._validate_ip_name(permitted_subtrees)
|
||
|
|
|
||
|
|
if excluded_subtrees is not None:
|
||
|
|
if not all(
|
||
|
|
isinstance(x, GeneralName) for x in excluded_subtrees
|
||
|
|
):
|
||
|
|
raise TypeError(
|
||
|
|
"excluded_subtrees must be a list of GeneralName objects "
|
||
|
|
"or None"
|
||
|
|
)
|
||
|
|
|
||
|
|
self._validate_ip_name(excluded_subtrees)
|
||
|
|
|
||
|
|
if permitted_subtrees is None and excluded_subtrees is None:
|
||
|
|
raise ValueError(
|
||
|
|
"At least one of permitted_subtrees and excluded_subtrees "
|
||
|
|
"must not be None"
|
||
|
|
)
|
||
|
|
|
||
|
|
self._permitted_subtrees = permitted_subtrees
|
||
|
|
self._excluded_subtrees = excluded_subtrees
|
||
|
|
|
||
|
|
def __eq__(self, other):
|
||
|
|
if not isinstance(other, NameConstraints):
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
return (
|
||
|
|
self.excluded_subtrees == other.excluded_subtrees and
|
||
|
|
self.permitted_subtrees == other.permitted_subtrees
|
||
|
|
)
|
||
|
|
|
||
|
|
def __ne__(self, other):
|
||
|
|
return not self == other
|
||
|
|
|
||
|
|
def _validate_ip_name(self, tree):
|
||
|
|
if any(isinstance(name, IPAddress) and not isinstance(
|
||
|
|
name.value, (ipaddress.IPv4Network, ipaddress.IPv6Network)
|
||
|
|
) for name in tree):
|
||
|
|
raise TypeError(
|
||
|
|
"IPAddress name constraints must be an IPv4Network or"
|
||
|
|
" IPv6Network object"
|
||
|
|
)
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
return (
|
||
|
|
u"<NameConstraints(permitted_subtrees={0.permitted_subtrees}, "
|
||
|
|
u"excluded_subtrees={0.excluded_subtrees})>".format(self)
|
||
|
|
)
|
||
|
|
|
||
|
|
permitted_subtrees = utils.read_only_property("_permitted_subtrees")
|
||
|
|
excluded_subtrees = utils.read_only_property("_excluded_subtrees")
|
||
|
|
|
||
|
|
|
||
|
|
class Extension(object):
|
||
|
|
def __init__(self, oid, critical, value):
|
||
|
|
if not isinstance(oid, ObjectIdentifier):
|
||
|
|
raise TypeError(
|
||
|
|
"oid argument must be an ObjectIdentifier instance."
|
||
|
|
)
|
||
|
|
|
||
|
|
if not isinstance(critical, bool):
|
||
|
|
raise TypeError("critical must be a boolean value")
|
||
|
|
|
||
|
|
self._oid = oid
|
||
|
|
self._critical = critical
|
||
|
|
self._value = value
|
||
|
|
|
||
|
|
oid = utils.read_only_property("_oid")
|
||
|
|
critical = utils.read_only_property("_critical")
|
||
|
|
value = utils.read_only_property("_value")
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
return ("<Extension(oid={0.oid}, critical={0.critical}, "
|
||
|
|
"value={0.value})>").format(self)
|
||
|
|
|
||
|
|
def __eq__(self, other):
|
||
|
|
if not isinstance(other, Extension):
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
return (
|
||
|
|
self.oid == other.oid and
|
||
|
|
self.critical == other.critical and
|
||
|
|
self.value == other.value
|
||
|
|
)
|
||
|
|
|
||
|
|
def __ne__(self, other):
|
||
|
|
return not self == other
|
||
|
|
|
||
|
|
|
||
|
|
class GeneralNames(object):
|
||
|
|
def __init__(self, general_names):
|
||
|
|
if not all(isinstance(x, GeneralName) for x in general_names):
|
||
|
|
raise TypeError(
|
||
|
|
"Every item in the general_names list must be an "
|
||
|
|
"object conforming to the GeneralName interface"
|
||
|
|
)
|
||
|
|
|
||
|
|
self._general_names = general_names
|
||
|
|
|
||
|
|
def __iter__(self):
|
||
|
|
return iter(self._general_names)
|
||
|
|
|
||
|
|
def __len__(self):
|
||
|
|
return len(self._general_names)
|
||
|
|
|
||
|
|
def get_values_for_type(self, type):
|
||
|
|
# Return the value of each GeneralName, except for OtherName instances
|
||
|
|
# which we return directly because it has two important properties not
|
||
|
|
# just one value.
|
||
|
|
objs = (i for i in self if isinstance(i, type))
|
||
|
|
if type != OtherName:
|
||
|
|
objs = (i.value for i in objs)
|
||
|
|
return list(objs)
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
return "<GeneralNames({0})>".format(self._general_names)
|
||
|
|
|
||
|
|
def __eq__(self, other):
|
||
|
|
if not isinstance(other, GeneralNames):
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
return self._general_names == other._general_names
|
||
|
|
|
||
|
|
def __ne__(self, other):
|
||
|
|
return not self == other
|
||
|
|
|
||
|
|
|
||
|
|
@utils.register_interface(ExtensionType)
|
||
|
|
class SubjectAlternativeName(object):
|
||
|
|
oid = ExtensionOID.SUBJECT_ALTERNATIVE_NAME
|
||
|
|
|
||
|
|
def __init__(self, general_names):
|
||
|
|
self._general_names = GeneralNames(general_names)
|
||
|
|
|
||
|
|
def __iter__(self):
|
||
|
|
return iter(self._general_names)
|
||
|
|
|
||
|
|
def __len__(self):
|
||
|
|
return len(self._general_names)
|
||
|
|
|
||
|
|
def get_values_for_type(self, type):
|
||
|
|
return self._general_names.get_values_for_type(type)
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
return "<SubjectAlternativeName({0})>".format(self._general_names)
|
||
|
|
|
||
|
|
def __eq__(self, other):
|
||
|
|
if not isinstance(other, SubjectAlternativeName):
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
return self._general_names == other._general_names
|
||
|
|
|
||
|
|
def __ne__(self, other):
|
||
|
|
return not self == other
|
||
|
|
|
||
|
|
|
||
|
|
@utils.register_interface(ExtensionType)
|
||
|
|
class IssuerAlternativeName(object):
|
||
|
|
oid = ExtensionOID.ISSUER_ALTERNATIVE_NAME
|
||
|
|
|
||
|
|
def __init__(self, general_names):
|
||
|
|
self._general_names = GeneralNames(general_names)
|
||
|
|
|
||
|
|
def __iter__(self):
|
||
|
|
return iter(self._general_names)
|
||
|
|
|
||
|
|
def __len__(self):
|
||
|
|
return len(self._general_names)
|
||
|
|
|
||
|
|
def get_values_for_type(self, type):
|
||
|
|
return self._general_names.get_values_for_type(type)
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
return "<IssuerAlternativeName({0})>".format(self._general_names)
|
||
|
|
|
||
|
|
def __eq__(self, other):
|
||
|
|
if not isinstance(other, IssuerAlternativeName):
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
return self._general_names == other._general_names
|
||
|
|
|
||
|
|
def __ne__(self, other):
|
||
|
|
return not self == other
|