124 lines
3.6 KiB
Python
124 lines
3.6 KiB
Python
from abc import ABCMeta, abstractmethod
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from collections import namedtuple
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from six import add_metaclass
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import data.model
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class ServiceKey(namedtuple('ServiceKey', ['name', 'kid', 'service', 'jwk', 'metadata',
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'created_date', 'expiration_date', 'rotation_duration',
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'approval'])):
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"""
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Service Key represents a public key (JWK) being used by an instance of a particular service to
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authenticate with other services.
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"""
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pass
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class ServiceKeyException(Exception):
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pass
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class ServiceKeyDoesNotExist(ServiceKeyException):
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pass
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# TODO(jzelinskie): maybe make this interface support superuser API
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@add_metaclass(ABCMeta)
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class KeyServerDataInterface(object):
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"""
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Interface that represents all data store interactions required by a JWT key service.
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"""
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@abstractmethod
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def list_service_keys(self, service):
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"""
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Returns a list of service keys or an empty list if the service does not exist.
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"""
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pass
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@abstractmethod
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def get_service_key(self, signer_kid, service=None, alive_only=None, approved_only=None):
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"""
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Returns a service kid with the given kid or raises ServiceKeyNotFound.
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"""
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pass
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@abstractmethod
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def create_service_key(self, name, kid, service, jwk, metadata, expiration_date,
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rotation_duration=None):
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"""
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Stores a service key.
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"""
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pass
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@abstractmethod
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def replace_service_key(self, old_kid, kid, jwk, metadata, expiration_date):
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"""
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Replaces a service with a new key or raises ServiceKeyNotFound.
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"""
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pass
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@abstractmethod
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def delete_service_key(self, kid):
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"""
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Deletes and returns a service key with the given kid or raises ServiceKeyNotFound.
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"""
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pass
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class PreOCIModel(KeyServerDataInterface):
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"""
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PreOCIModel implements the data model for JWT key service using a database schema before it was
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changed to support the OCI specification.
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"""
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def list_service_keys(self, service):
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return data.model.service_keys.list_service_keys(service)
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def get_service_key(self, signer_kid, service=None, alive_only=True, approved_only=True):
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try:
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key = data.model.service_keys.get_service_key(signer_kid, service, alive_only, approved_only)
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return _db_key_to_servicekey(key)
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except data.model.ServiceKeyDoesNotExist:
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raise ServiceKeyDoesNotExist()
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def create_service_key(self, name, kid, service, jwk, metadata, expiration_date,
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rotation_duration=None):
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key = data.model.service_keys.create_service_key(name, kid, service, jwk, metadata,
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expiration_date, rotation_duration)
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return _db_key_to_servicekey(key)
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def replace_service_key(self, old_kid, kid, jwk, metadata, expiration_date):
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try:
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data.model.service_keys.replace_service_key(old_kid, kid, jwk, metadata, expiration_date)
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except data.model.ServiceKeyDoesNotExist:
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raise ServiceKeyDoesNotExist()
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def delete_service_key(self, kid):
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try:
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key = data.model.service_keys.delete_service_key(kid)
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return _db_key_to_servicekey(key)
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except data.model.ServiceKeyDoesNotExist:
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raise ServiceKeyDoesNotExist()
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pre_oci_model = PreOCIModel()
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def _db_key_to_servicekey(key):
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"""
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Converts the Pre-OCI database model of a service key into a ServiceKey.
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"""
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return ServiceKey(
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name=key.name,
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kid=key.kid,
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service=key.service,
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jwk=key.jwk,
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metadata=key.metadata,
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created_date=key.created_date,
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expiration_date=key.expiration_date,
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rotation_duration=key.rotation_duration,
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approval=key.approval,
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)
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