lib/mongo/auth/ldap/conversation.rb
# frozen_string_literal: true
# rubocop:todo all
# Copyright (C) 2014-2020 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 Auth
class LDAP
# Defines behavior around a single PLAIN conversation between the
# client and server.
#
# @since 2.0.0
# @api private
class Conversation < ConversationBase
# The login message.
#
# @since 2.0.0
LOGIN = { saslStart: 1, autoAuthorize: 1 }.freeze
# Start the PLAIN conversation. This returns the first message that
# needs to be sent to the server.
#
# @param [ Server::Connection ] connection The connection being
# authenticated.
#
# @return [ Protocol::Query ] The first PLAIN conversation message.
#
# @since 2.0.0
def start(connection)
validate_external_auth_source
selector = LOGIN.merge(payload: payload, mechanism: LDAP::MECHANISM)
build_message(connection, '$external', selector)
end
private
def payload
BSON::Binary.new("\x00#{user.name}\x00#{user.password}")
end
end
end
end
end