76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
// GNU Lesser General Public License v3.0
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// Copyright (c) 2025 Bart Beumer <bart@4beumer.nl>
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//
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// This program is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License v3.0 as published by
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// the Free Software Foundation.
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//
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#pragma once
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#include <boost/asio/io_context.hpp>
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#include <boost/asio/ip/tcp.hpp>
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#include <boost/beast.hpp>
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#include <functional>
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#include <utility>
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namespace bmrshared::web
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{
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class response_promise final
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{
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private:
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class response_writer_interface
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{
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public:
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virtual ~response_writer_interface() = default;
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virtual void write_response(boost::beast::tcp_stream&) = 0;
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};
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template<typename TResponse>
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class response_writer : public response_writer_interface
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{
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public:
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template<typename... TArgs>
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response_writer(TArgs... args)
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: m_response(args...)
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{}
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~response_writer() override = default;
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void write_response(boost::beast::tcp_stream& stream) override
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{
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boost::beast::http::write(stream, m_response);
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}
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TResponse& response()
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{
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return m_response;
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}
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private:
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TResponse m_response;
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};
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public:
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using response_sender = std::function<void(boost::beast::tcp_stream& stream)>;
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using callback_on_response = std::function<void(response_sender fnSendResponse)>;
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response_promise() = delete;
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explicit response_promise(callback_on_response cbOnResponse);
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~response_promise();
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template<typename TResponse, typename... TArgs>
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TResponse& CreateResponse(TArgs&&... args)
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{
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auto created = std::make_unique<response_writer<TResponse>>(std::forward<TArgs>(args)...);
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auto& resp = created->response();
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m_response_writer = std::move(created);
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return resp;
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}
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private:
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callback_on_response m_call_on_response;
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std::shared_ptr<response_writer_interface> m_response_writer;
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};
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} // namespace bmrshared::web
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