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"""Client annotated ACME challenges.
Please use names such as ``achall`` to distinguish from variables "of type"
:class:`acme.challenges.Challenge` (denoted by ``chall``)
and :class:`.ChallengeBody` (denoted by ``challb``)::
from acme import challenges
from acme import messages
from certbot import achallenges
chall = challenges.DNS(token='foo')
challb = messages.ChallengeBody(chall=chall)
achall = achallenges.DNS(chall=challb, domain='example.com')
Note, that all annotated challenges act as a proxy objects::
achall.token == challb.token
"""
import logging
import josepy as jose
from acme import challenges
logger = logging.getLogger(__name__)
class AnnotatedChallenge(jose.ImmutableMap):
"""Client annotated challenge.
Wraps around server provided challenge and annotates with data
useful for the client.
:ivar challb: Wrapped `~.ChallengeBody`.
"""
__slots__ = ('challb',)
acme_type = NotImplemented
def __getattr__(self, name):
return getattr(self.challb, name)
class KeyAuthorizationAnnotatedChallenge(AnnotatedChallenge):
"""Client annotated `KeyAuthorizationChallenge` challenge."""
__slots__ = ('challb', 'domain', 'account_key')
def response_and_validation(self, *args, **kwargs):
"""Generate response and validation."""
return self.challb.chall.response_and_validation(
self.account_key, *args, **kwargs)
class DNS(AnnotatedChallenge):
"""Client annotated "dns" ACME challenge."""
__slots__ = ('challb', 'domain')
acme_type = challenges.DNS