mirror of
https://github.com/boostorg/mqtt5.git
synced 2025-11-03 17:31:37 +01:00
3abacf7a41
Summary: related to T12804 Reviewers: ivica Reviewed By: ivica Subscribers: miljen, iljazovic Differential Revision: https://repo.mireo.local/D28182
86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
//[hello_world_over_tls
|
|
#include <iostream>
|
|
|
|
#include <boost/asio/io_context.hpp>
|
|
#include <boost/asio/detached.hpp>
|
|
#include <boost/asio/ssl.hpp>
|
|
#include <boost/asio/ip/tcp.hpp>
|
|
|
|
#include <async_mqtt5.hpp>
|
|
|
|
// External customization point.
|
|
namespace async_mqtt5 {
|
|
|
|
template <typename StreamBase>
|
|
struct tls_handshake_type<boost::asio::ssl::stream<StreamBase>> {
|
|
static constexpr auto client = boost::asio::ssl::stream_base::client;
|
|
static constexpr auto server = boost::asio::ssl::stream_base::server;
|
|
};
|
|
|
|
// This client uses this function to indicate which hostname it is
|
|
// attempting to connect to at the start of the handshaking process.
|
|
template <typename StreamBase>
|
|
void assign_tls_sni(
|
|
const authority_path& ap,
|
|
boost::asio::ssl::context& ctx,
|
|
boost::asio::ssl::stream<StreamBase>& stream
|
|
) {
|
|
SSL_set_tlsext_host_name(stream.native_handle(), ap.host.c_str());
|
|
}
|
|
|
|
} // end namespace async_mqtt5
|
|
|
|
// The certificate file in the PEM format.
|
|
constexpr char ca_cert[] =
|
|
"-----BEGIN CERTIFICATE-----\n"
|
|
"...........................\n"
|
|
"-----END CERTIFICATE-----\n"
|
|
;
|
|
|
|
int main() {
|
|
boost::asio::io_context ioc;
|
|
|
|
// Context satisfying ``__TlsContext__`` requirements that the underlying SSL stream will use.
|
|
// The purpose of the context is to allow us to set up TLS/SSL-related options.
|
|
// See ``__SSL__`` for more information and options.
|
|
boost::asio::ssl::context context(boost::asio::ssl::context::tls_client);
|
|
|
|
async_mqtt5::error_code ec;
|
|
|
|
// Add the trusted certificate authority for performing verification.
|
|
context.add_certificate_authority(boost::asio::buffer(ca_cert), ec);
|
|
if (ec)
|
|
std::cout << "Failed to add certificate authority!" << std::endl;
|
|
ec.clear();
|
|
|
|
// Set peer verification mode used by the context.
|
|
// This will verify that the server's certificate is valid and signed by a trusted certificate authority.
|
|
context.set_verify_mode(boost::asio::ssl::verify_peer, ec);
|
|
if (ec)
|
|
std::cout << "Failed to set peer verification mode!" << std::endl;
|
|
ec.clear();
|
|
|
|
// Construct the Client with ``__SSL_STREAM__`` as the underlying stream
|
|
// with ``__SSL_CONTEXT__`` as the ``__TlsContext__`` type.
|
|
async_mqtt5::mqtt_client<
|
|
boost::asio::ssl::stream<boost::asio::ip::tcp::socket>,
|
|
boost::asio::ssl::context
|
|
> client(ioc, std::move(context));
|
|
|
|
// 8883 is the default TLS MQTT port.
|
|
client.brokers("<your-mqtt-broker>", 8883)
|
|
.async_run(boost::asio::detached);
|
|
|
|
client.async_publish<async_mqtt5::qos_e::at_most_once>(
|
|
"<topic>", "Hello world!",
|
|
async_mqtt5::retain_e::no, async_mqtt5::publish_props{},
|
|
[&client](async_mqtt5::error_code ec) {
|
|
std::cout << ec.message() << std::endl;
|
|
client.async_disconnect(boost::asio::detached);
|
|
}
|
|
);
|
|
|
|
ioc.run();
|
|
}
|
|
//]
|