Source code for acme.fields

"""ACME JSON fields."""
import logging

import josepy as jose
import pyrfc3339

logger = logging.getLogger(__name__)


[docs]class Fixed(jose.Field): """Fixed field.""" def __init__(self, json_name, value): self.value = value super(Fixed, self).__init__( json_name=json_name, default=value, omitempty=False)
[docs] def decode(self, value): if value != self.value: raise jose.DeserializationError('Expected {0!r}'.format(self.value)) return self.value
[docs] def encode(self, value): if value != self.value: logger.warning( 'Overriding fixed field (%s) with %r', self.json_name, value) return value
[docs]class RFC3339Field(jose.Field): """RFC3339 field encoder/decoder. Handles decoding/encoding between RFC3339 strings and aware (not naive) `datetime.datetime` objects (e.g. ``datetime.datetime.now(pytz.utc)``). """
[docs] @classmethod def default_encoder(cls, value): return pyrfc3339.generate(value)
[docs] @classmethod def default_decoder(cls, value): try: return pyrfc3339.parse(value) except ValueError as error: raise jose.DeserializationError(error)
[docs]class Resource(jose.Field): """Resource MITM field.""" def __init__(self, resource_type, *args, **kwargs): self.resource_type = resource_type super(Resource, self).__init__( 'resource', default=resource_type, *args, **kwargs)
[docs] def decode(self, value): if value != self.resource_type: raise jose.DeserializationError( 'Wrong resource type: {0} instead of {1}'.format( value, self.resource_type)) return value