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1e57b3b8a6
Summary: related to T13767, #15 Reviewers: ivica Reviewed By: ivica Subscribers: iljazovic, miljen Differential Revision: https://repo.mireo.local/D31707
96 lines
3.1 KiB
C++
96 lines
3.1 KiB
C++
//
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// Copyright (c) 2023-2024 Ivica Siladic, Bruno Iljazovic, Korina Simicevic
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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//[hello_world_over_websocket_tls
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#include <iostream>
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#include <boost/asio/io_context.hpp>
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#include <boost/asio/detached.hpp>
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#include <boost/asio/ssl.hpp>
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#include <boost/asio/ip/tcp.hpp>
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#include <boost/beast/websocket.hpp>
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#include <boost/beast/ssl/ssl_stream.hpp> // async_teardown specialization for websocket ssl stream
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#include <async_mqtt5.hpp>
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// External customization point.
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namespace async_mqtt5 {
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template <typename StreamBase>
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struct tls_handshake_type<boost::asio::ssl::stream<StreamBase>> {
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static constexpr auto client = boost::asio::ssl::stream_base::client;
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static constexpr auto server = boost::asio::ssl::stream_base::server;
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};
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// This client uses this function to indicate which hostname it is
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// attempting to connect to at the start of the handshaking process.
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template <typename StreamBase>
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void assign_tls_sni(
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const authority_path& ap,
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boost::asio::ssl::context& /*ctx*/,
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boost::asio::ssl::stream<StreamBase>& stream
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) {
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SSL_set_tlsext_host_name(stream.native_handle(), ap.host.c_str());
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}
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} // end namespace async_mqtt5
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// The certificate file in the PEM format.
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constexpr char ca_cert[] =
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"-----BEGIN CERTIFICATE-----\n"
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"...........................\n"
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"-----END CERTIFICATE-----\n"
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;
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int main() {
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boost::asio::io_context ioc;
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// Context satisfying ``__TlsContext__`` requirements that the underlying SSL stream will use.
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// The purpose of the context is to allow us to set up TLS/SSL-related options.
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// See ``__SSL__`` for more information and options.
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boost::asio::ssl::context context(boost::asio::ssl::context::tls_client);
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async_mqtt5::error_code ec;
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// Add the trusted certificate authority for performing verification.
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context.add_certificate_authority(boost::asio::buffer(ca_cert), ec);
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if (ec)
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std::cout << "Failed to add certificate authority!" << std::endl;
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ec.clear();
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// Set peer verification mode used by the context.
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// This will verify that the server's certificate is valid and signed by a trusted certificate authority.
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context.set_verify_mode(boost::asio::ssl::verify_peer, ec);
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if (ec)
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std::cout << "Failed to set peer verification mode!" << std::endl;
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ec.clear();
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// Construct the Client with WebSocket/SSL as the underlying stream
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// with ``__SSL_CONTEXT__`` as the ``__TlsContext__`` type.
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async_mqtt5::mqtt_client<
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boost::beast::websocket::stream<boost::asio::ssl::stream<boost::asio::ip::tcp::socket>>,
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boost::asio::ssl::context
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> client(ioc, std::move(context));
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// 8884 is the default Websocket/TLS MQTT port.
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client.brokers("<your-mqtt-broker-path>", 8884) // Path example: localhost/mqtt
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.async_run(boost::asio::detached);
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client.async_publish<async_mqtt5::qos_e::at_most_once>(
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"<topic>", "Hello world!",
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async_mqtt5::retain_e::no, async_mqtt5::publish_props{},
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[&client](async_mqtt5::error_code ec) {
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std::cout << ec.message() << std::endl;
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client.async_disconnect(boost::asio::detached);
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}
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);
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ioc.run();
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}
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//]
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