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# Copyright (c) 2017 Pure Storage, Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from kmip.core import attributes
from kmip.core import enums
from kmip.core import exceptions
from kmip.core.enums import Tags
from kmip.core.messages.payloads import base
from kmip.core.objects import Data, MACData
from kmip.core.utils import BytearrayStream
# 4.33
class MACRequestPayload(base.RequestPayload):
def __init__(self,
unique_identifier=None,
cryptographic_parameters=None,
data=None):
super(MACRequestPayload, self).__init__()
self._unique_identifier = None
self._cryptographic_parameters = None
self._data = None
self.unique_identifier = unique_identifier
self.cryptographic_parameters = cryptographic_parameters
self.data = data
@property
def unique_identifier(self):
return self._unique_identifier
@unique_identifier.setter
def unique_identifier(self, value):
if value is None:
self._unique_identifier = None
elif isinstance(value, attributes.UniqueIdentifier):
self._unique_identifier = value
else:
raise TypeError("unique identifier must be UniqueIdentifier type")
@property
def cryptographic_parameters(self):
return self._cryptographic_parameters
@cryptographic_parameters.setter
def cryptographic_parameters(self, value):
if value is None:
self._cryptographic_parameters = None
elif isinstance(value, attributes.CryptographicParameters):
self._cryptographic_parameters = value
else:
raise TypeError("cryptographic parameters must "
"be CryptographicParameters type")
@property
def data(self):
return self._data
@data.setter
def data(self, value):
if value is None:
self._data = None
elif isinstance(value, Data):
self._data = value
else:
raise TypeError("data must be Data type")
def read(self, istream, kmip_version=enums.KMIPVersion.KMIP_1_0):
super(MACRequestPayload, self).read(
istream,
kmip_version=kmip_version
)
tstream = BytearrayStream(istream.read(self.length))
if self.is_tag_next(Tags.UNIQUE_IDENTIFIER, tstream):
self.unique_identifier = attributes.UniqueIdentifier()
self.unique_identifier.read(tstream, kmip_version=kmip_version)
if self.is_tag_next(Tags.CRYPTOGRAPHIC_PARAMETERS, tstream):
self.cryptographic_parameters = \
attributes.CryptographicParameters()
self.cryptographic_parameters.read(
tstream,
kmip_version=kmip_version
)
if self.is_tag_next(Tags.DATA, tstream):
self.data = Data()
self.data.read(tstream, kmip_version=kmip_version)
else:
raise exceptions.InvalidKmipEncoding(
"expected mac request data not found"
)
self.is_oversized(tstream)
def write(self, ostream, kmip_version=enums.KMIPVersion.KMIP_1_0):
tstream = BytearrayStream()
if self._unique_identifier is not None:
self._unique_identifier.write(tstream, kmip_version=kmip_version)
if self._cryptographic_parameters is not None:
self._cryptographic_parameters.write(
tstream,
kmip_version=kmip_version
)
if self._data is not None:
self.data.write(tstream, kmip_version=kmip_version)
else:
raise exceptions.InvalidField(
"The mac request data is required"
)
self.length = tstream.length()
super(MACRequestPayload, self).write(
ostream,
kmip_version=kmip_version
)
ostream.write(tstream.buffer)
class MACResponsePayload(base.ResponsePayload):
def __init__(self,
unique_identifier=None,
mac_data=None):
super(MACResponsePayload, self).__init__()
self._unique_identifier = None
self._mac_data = None
self.unique_identifier = unique_identifier
self.mac_data = mac_data
@property
def unique_identifier(self):
return self._unique_identifier
@unique_identifier.setter
def unique_identifier(self, value):
if value is None:
self._unique_identifier = None
elif isinstance(value, attributes.UniqueIdentifier):
self._unique_identifier = value
else:
raise TypeError("unique identifier must be UniqueIdentifier type")
@property
def mac_data(self):
return self._mac_data
@mac_data.setter
def mac_data(self, value):
if value is None:
self._mac_data = None
elif isinstance(value, MACData):
self._mac_data = value
else:
raise TypeError("mac_data must be MACData type")
def read(self, istream, kmip_version=enums.KMIPVersion.KMIP_1_0):
super(MACResponsePayload, self).read(
istream,
kmip_version=kmip_version
)
tstream = BytearrayStream(istream.read(self.length))
if self.is_tag_next(Tags.UNIQUE_IDENTIFIER, tstream):
self._unique_identifier = attributes.UniqueIdentifier()
self._unique_identifier.read(tstream, kmip_version=kmip_version)
else:
raise exceptions.InvalidKmipEncoding(
"expected mac response unique identifier not found"
)
if self.is_tag_next(Tags.MAC_DATA, tstream):
self._mac_data = MACData()
self._mac_data.read(tstream, kmip_version=kmip_version)
else:
raise exceptions.InvalidKmipEncoding(
"expected mac response mac data not found"
)
self.is_oversized(tstream)
def write(self, ostream, kmip_version=enums.KMIPVersion.KMIP_1_0):
tstream = BytearrayStream()
if self._unique_identifier is not None:
self._unique_identifier.write(tstream, kmip_version=kmip_version)
else:
raise exceptions.InvalidField(
"The mac response unique identifier is required"
)
if self._mac_data is not None:
self._mac_data.write(tstream, kmip_version=kmip_version)
else:
raise exceptions.InvalidField(
"The mac response mac data is required"
)
self.length = tstream.length()
super(MACResponsePayload, self).write(
ostream,
kmip_version=kmip_version
)
ostream.write(tstream.buffer)
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