398 lines
14 KiB
Python
398 lines
14 KiB
Python
# Copyright (c) 2014 The Johns Hopkins University/Applied Physics Laboratory
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from kmip.core.enums import Tags
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from kmip.core.messages import contents
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from kmip.core.messages.contents import AsynchronousCorrelationValue
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from kmip.core.messages.contents import BatchErrorContinuationOption
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from kmip.core.messages import operations
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from kmip.core.primitives import Struct
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from kmip.core.utils import BytearrayStream
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class RequestHeader(Struct):
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def __init__(self,
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protocol_version=None,
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maximum_response_size=None,
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asynchronous_indicator=None,
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authentication=None,
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batch_error_cont_option=None,
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batch_order_option=None,
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time_stamp=None,
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batch_count=None):
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super(self.__class__, self).__init__(tag=Tags.REQUEST_HEADER)
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self.protocol_version = protocol_version
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self.maximum_response_size = maximum_response_size
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self.asynchronous_indicator = asynchronous_indicator
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self.authentication = authentication
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self.batch_error_cont_option = batch_error_cont_option
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self.batch_order_option = batch_order_option
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self.time_stamp = time_stamp
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self.batch_count = batch_count
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def read(self, istream):
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super(self.__class__, self).read(istream)
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tstream = BytearrayStream(istream.read(self.length))
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self.protocol_version = contents.ProtocolVersion()
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self.protocol_version.read(tstream)
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# Read the maximum response size if it is present
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if self.is_tag_next(Tags.MAXIMUM_RESPONSE_SIZE, tstream):
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self.maximum_response_size = contents.MaximumResponseSize()
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self.maximum_response_size.read(tstream)
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# Read the asynchronous indicator if it is present
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if self.is_tag_next(Tags.ASYNCHRONOUS_INDICATOR, tstream):
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self.asynchronous_indicator = contents.AsynchronousIndicator()
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self.asynchronous_indicator.read(tstream)
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# Read the authentication if it is present
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if self.is_tag_next(Tags.AUTHENTICATION, tstream):
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self.authentication = contents.Authentication()
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self.authentication.read(tstream)
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# Read the batch error continuation option if it is present
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if self.is_tag_next(Tags.BATCH_ERROR_CONTINUATION_OPTION, tstream):
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self.batch_error_cont_option = BatchErrorContinuationOption()
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self.batch_error_cont_option.read(tstream)
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# Read the batch order option if it is present
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if self.is_tag_next(Tags.BATCH_ORDER_OPTION, tstream):
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self.batch_order_option = contents.BatchOrderOption()
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self.batch_order_option.read(tstream)
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# Read the time stamp if it is present
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if self.is_tag_next(Tags.TIME_STAMP, tstream):
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self.time_stamp = contents.TimeStamp()
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self.time_stamp.read(tstream)
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self.batch_count = contents.BatchCount()
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self.batch_count.read(tstream)
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self.is_oversized(tstream)
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def write(self, ostream):
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tstream = BytearrayStream()
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# Write the contents of a request header to the stream
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self.protocol_version.write(tstream)
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if self.maximum_response_size is not None:
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self.maximum_response_size.write(tstream)
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if self.asynchronous_indicator is not None:
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self.asynchronous_indicator.write(tstream)
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if self.authentication is not None:
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self.authentication.write(tstream)
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if self.batch_error_cont_option is not None:
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self.batch_error_cont_option.write(tstream)
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if self.batch_order_option is not None:
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self.batch_order_option.write(tstream)
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if self.time_stamp is not None:
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self.time_stamp.write(tstream)
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self.batch_count.write(tstream)
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# Write the length and value of the request header
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self.length = tstream.length()
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super(self.__class__, self).write(ostream)
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ostream.write(tstream.buffer)
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class ResponseHeader(Struct):
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def __init__(self,
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protocol_version=None,
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time_stamp=None,
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batch_count=None):
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super(self.__class__, self).__init__(tag=Tags.RESPONSE_HEADER)
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self.protocol_version = protocol_version
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self.time_stamp = time_stamp
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self.batch_count = batch_count
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self.validate()
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def read(self, istream):
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super(self.__class__, self).read(istream)
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tstream = BytearrayStream(istream.read(self.length))
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self.protocol_version = contents.ProtocolVersion()
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self.protocol_version.read(tstream)
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self.time_stamp = contents.TimeStamp()
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self.time_stamp.read(tstream)
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self.batch_count = contents.BatchCount()
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self.batch_count.read(tstream)
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self.is_oversized(tstream)
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self.validate()
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def write(self, ostream):
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tstream = BytearrayStream()
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# Write the contents of a response header to the stream
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self.protocol_version.write(tstream)
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self.time_stamp.write(tstream)
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self.batch_count.write(tstream)
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# Write the length and value of the request header
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self.length = tstream.length()
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super(self.__class__, self).write(ostream)
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ostream.write(tstream.buffer)
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def validate(self):
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if self.protocol_version is not None:
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# TODO (peter-hamilton) conduct type check
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self.protocol_version.validate()
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if self.time_stamp is not None:
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# TODO (peter-hamilton) conduct type check
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self.time_stamp.validate()
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if self.batch_count is not None:
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# TODO (peter-hamilton) conduct type check
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self.batch_count.validate()
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class RequestBatchItem(Struct):
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def __init__(self,
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operation=None,
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unique_batch_item_id=None,
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request_payload=None,
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message_extension=None):
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super(self.__class__, self).__init__(tag=Tags.REQUEST_BATCH_ITEM)
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self.operation = operation
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self.unique_batch_item_id = unique_batch_item_id
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self.request_payload = request_payload
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self.message_extension = message_extension
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def read(self, istream):
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super(self.__class__, self).read(istream)
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tstream = BytearrayStream(istream.read(self.length))
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# Read the batch item operation
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self.operation = contents.Operation()
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self.operation.read(tstream)
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# Read the unique batch item ID if it is present
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if self.is_tag_next(Tags.UNIQUE_BATCH_ITEM_ID, tstream):
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self.unique_batch_item_id = contents.UniqueBatchItemID()
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self.unique_batch_item_id.read(tstream)
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# Lookup the response payload class that belongs to the operation
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cls = operations.REQUEST_MAP.get(self.operation.enum)
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self.request_payload = cls()
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self.request_payload.read(tstream)
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# Read the message extension if it is present
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if self.is_tag_next(Tags.MESSAGE_EXTENSION, tstream):
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self.message_extension = contents.MessageExtension()
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self.message_extension.read(tstream)
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self.is_oversized(tstream)
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def write(self, ostream):
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tstream = BytearrayStream()
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# Write the contents of the batch item to the stream
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self.operation.write(tstream)
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if self.unique_batch_item_id is not None:
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self.unique_batch_item_id.write(tstream)
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self.request_payload.write(tstream)
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if self.message_extension is not None:
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self.message_extension.write(tstream)
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# Write the length and value of the batch item
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self.length = tstream.length()
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super(self.__class__, self).write(ostream)
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ostream.write(tstream.buffer)
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class ResponseBatchItem(Struct):
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def __init__(self,
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operation=None,
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unique_batch_item_id=None,
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result_status=None,
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result_reason=None,
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result_message=None,
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async_correlation_value=None,
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response_payload=None,
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message_extension=None):
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super(self.__class__, self).__init__(tag=Tags.RESPONSE_BATCH_ITEM)
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self.operation = operation
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self.unique_batch_item_id = unique_batch_item_id
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self.result_status = result_status
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self.result_reason = result_reason
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self.result_message = result_message
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self.async_correlation_value = async_correlation_value
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self.response_payload = response_payload
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self.message_extension = message_extension
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self.validate()
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def read(self, istream):
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super(self.__class__, self).read(istream)
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tstream = BytearrayStream(istream.read(self.length))
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# Read the batch item operation if it is present
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if self.is_tag_next(Tags.OPERATION, tstream):
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self.operation = contents.Operation()
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self.operation.read(tstream)
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# Read the unique batch item ID if it is present
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if self.is_tag_next(Tags.UNIQUE_BATCH_ITEM_ID, tstream):
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self.unique_batch_item_id = contents.UniqueBatchItemID()
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self.unique_batch_item_id.read(tstream)
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# Read the batch item result status
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self.result_status = contents.ResultStatus()
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self.result_status.read(tstream)
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# Read the batch item result reason if it is present
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if self.is_tag_next(Tags.RESULT_REASON, tstream):
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self.result_reason = contents.ResultReason()
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self.result_reason.read(tstream)
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# Read the batch item result message if it is present
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if self.is_tag_next(Tags.RESULT_MESSAGE, tstream):
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self.result_message = contents.ResultMessage()
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self.result_message.read(tstream)
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# Read the batch item asynchronous correlation value if it is present
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if self.is_tag_next(Tags.ASYNCHRONOUS_CORRELATION_VALUE, tstream):
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self.async_correlation_value = AsynchronousCorrelationValue()
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self.async_correlation_value.read(tstream)
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# Lookup the response payload class that belongs to the operation
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cls = operations.RESPONSE_MAP.get(self.operation.enum)
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expected = cls()
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if self.is_tag_next(expected.tag, tstream):
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self.response_payload = cls()
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self.response_payload.read(tstream)
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# Read the message extension if it is present
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if self.is_tag_next(Tags.MESSAGE_EXTENSION, tstream):
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self.message_extension = contents.MessageExtension()
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self.message_extension.read(tstream)
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self.is_oversized(tstream)
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self.validate()
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def write(self, ostream):
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tstream = BytearrayStream()
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# Write the contents of the batch item to the stream
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if self.operation is not None:
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self.operation.write(tstream)
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if self.unique_batch_item_id is not None:
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self.unique_batch_item_id.write(tstream)
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self.result_status.write(tstream)
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if self.result_reason is not None:
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self.result_reason.write(tstream)
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if self.result_message is not None:
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self.result_message.write(tstream)
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if self.async_correlation_value is not None:
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self.async_correlation_value.write(tstream)
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if self.response_payload is not None:
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self.response_payload.write(tstream)
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if self.message_extension is not None:
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self.message_extension.write(tstream)
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# Write the length and value of the batch item
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self.length = tstream.length()
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super(self.__class__, self).write(ostream)
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ostream.write(tstream.buffer)
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def validate(self):
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pass
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class RequestMessage(Struct):
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def __init__(self, request_header=None, batch_items=None,):
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super(self.__class__, self).__init__(tag=Tags.REQUEST_MESSAGE)
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self.request_header = request_header
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self.batch_items = batch_items
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def read(self, istream):
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super(self.__class__, self).read(istream)
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self.request_header = RequestHeader()
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self.request_header.read(istream)
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self.batch_items = []
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for _ in range(self.request_header.batch_count.value):
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batch_item = RequestBatchItem()
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batch_item.read(istream)
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self.batch_items.append(batch_item)
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def write(self, ostream):
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tstream = BytearrayStream()
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# Write the request header and all batch items
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self.request_header.write(tstream)
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for batch_item in self.batch_items:
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batch_item.write(tstream)
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# Write the TTLV encoding of the request message
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self.length = tstream.length()
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super(self.__class__, self).write(ostream)
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ostream.write(tstream.buffer)
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class ResponseMessage(Struct):
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def __init__(self, response_header=None, batch_items=None,):
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super(self.__class__, self).__init__(tag=Tags.RESPONSE_MESSAGE)
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self.response_header = response_header
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self.batch_items = batch_items
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self.validate()
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def read(self, istream):
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super(self.__class__, self).read(istream)
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self.response_header = ResponseHeader()
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self.response_header.read(istream)
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self.batch_items = []
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for _ in range(self.response_header.batch_count.value):
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batch_item = ResponseBatchItem()
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batch_item.read(istream)
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self.batch_items.append(batch_item)
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self.validate()
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def write(self, ostream):
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tstream = BytearrayStream()
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# Write the request header and all batch items
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self.response_header.write(tstream)
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for batch_item in self.batch_items:
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batch_item.write(tstream)
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# Write the TTLV encoding of the request message
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self.length = tstream.length()
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super(self.__class__, self).write(ostream)
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ostream.write(tstream.buffer)
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def validate(self):
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pass
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