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# frozen_string_literal: true
# rubocop:todo all
# Copyright (C) 2019-2020 MongoDB Inc.
#
# 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.
module Mongo
module Crypt
# Wraps a libmongocrypt mongocrypt_kms_ctx_t object. Contains information
# about making an HTTP request to fetch information about a KMS
# data key.
class KmsContext
# Create a new KmsContext object.
#
# @param [ FFI::Pointer ] kms_ctx A pointer to a mongocrypt_kms_ctx_t
# object. This object is managed by the mongocrypt_ctx_t object that
# created it; this class is not responsible for de-allocating resources.
def initialize(kms_ctx)
@kms_ctx_p = kms_ctx
end
# Return the pointer to the underlying mongocrypt_kms_ctx_t object.
#
# @return [ FFI::Pointer ] A pointer to a mongocrypt_kms_ctx_t object.
attr_reader :kms_ctx_p
# Return the endpoint at which to make the HTTP request.
#
# @return [ String ] The endpoint.
def endpoint
Binding.kms_ctx_endpoint(self)
end
# Return the HTTP message to send to fetch information about the relevant
# KMS data key.
#
# @return [ String ] The HTTP message.
def message
Binding.kms_ctx_message(self)
end
# Return the number of bytes still needed by libmongocrypt to complete
# the request for information about the AWS data key.
#
# @return [ Integer ] The number of bytes needed.
def bytes_needed
Binding.kms_ctx_bytes_needed(self)
end
# Feed a response from the HTTP request to libmongocrypt.
#
# @param [ String ] data Data to feed to libmongocrypt.
def feed(data)
Binding.kms_ctx_feed(self, data)
end
end
end
end
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