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b6142c13d6
When attempting to import any module that uses zope.interface.implements
in Python 3, a TypeError is raised; it reads:
TypeError: Class advice impossible in Python3. Use the @implementer
class decorator instead.
Following the listed advice seems to function in Python 3.
55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
"""Continuity Authenticator"""
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import zope.interface
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from acme import challenges
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from letsencrypt import achallenges
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from letsencrypt import errors
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from letsencrypt import interfaces
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from letsencrypt import proof_of_possession
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@zope.interface.implementer(interfaces.IAuthenticator)
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class ContinuityAuthenticator(object):
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"""IAuthenticator for
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:const:`~acme.challenges.ContinuityChallenge` class challenges.
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:ivar proof_of_pos: Performs "proofOfPossession" challenges.
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:type proof_of_pos:
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:class:`letsencrypt.proof_of_possession.Proof_of_Possession`
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"""
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# This will have an installer soon for get_key/cert purposes
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def __init__(self, config, installer): # pylint: disable=unused-argument
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"""Initialize Client Authenticator.
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:param config: Configuration.
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:type config: :class:`letsencrypt.interfaces.IConfig`
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:param installer: Let's Encrypt Installer.
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:type installer: :class:`letsencrypt.interfaces.IInstaller`
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"""
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self.proof_of_pos = proof_of_possession.ProofOfPossession(installer)
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def get_chall_pref(self, unused_domain): # pylint: disable=no-self-use
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"""Return list of challenge preferences."""
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return [challenges.ProofOfPossession]
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def perform(self, achalls):
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"""Perform client specific challenges for IAuthenticator"""
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responses = []
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for achall in achalls:
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if isinstance(achall, achallenges.ProofOfPossession):
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responses.append(self.proof_of_pos.perform(achall))
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else:
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raise errors.ContAuthError("Unexpected Challenge")
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return responses
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def cleanup(self, achalls): # pylint: disable=no-self-use
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"""Cleanup call for IAuthenticator."""
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for achall in achalls:
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if not isinstance(achall, achallenges.ProofOfPossession):
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raise errors.ContAuthError("Unexpected Challenge")
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