How to send a https request with boost beast

[aikuimail]

Dear vinniefalco:
I really love this library, but I don't know how to send a https with the beast, the server dose not have a certificate with the https

[vinniefalco]

There are HTTPS examples for both clients and servers in the example/ directory, have you tried them? Here: https://github.com/boostorg/beast/tree/develop/example/http

[aikuimail]

`#include "example/common/root_certificates.hpp"

#include <boost/beast/core.hpp>

#include <boost/beast/http.hpp>

#include <boost/beast/version.hpp>

#include <boost/asio/connect.hpp>

#include <boost/asio/ip/tcp.hpp>

#include <boost/asio/ssl/stream.hpp>

#include

#include

#include

#pragma comment(lib, "libeay32")
#pragma comment(lib, "ssleay32")

using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>

namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>

namespace http = boost::beast::http; // from <boost/beast/http.hpp>

									// Performs an HTTP GET and prints the response

int main(int argc, char** argv)

{

try

{

	// Check command line arguments.

	auto const host = "192.168.31.175";
	auto const port = "8443";
	auto const target = "/NetCafe/servlet/ConsoleBasicServiceServlet";
	std::string paramOn = "?operator=mofei&serviceid=50025&param=mofei|GjVWhIsUjqFCHVTfJ2IuNw==|0|0|0|0|0";
	// The io_service is required for all I/O

	boost::asio::io_service ios;



	// The SSL context is required, and holds certificates

	ssl::context ctx{ ssl::context::sslv23_client };



	// This holds the root certificate used for verification

	load_root_certificates(ctx);



	// These objects perform our I/O

	tcp::resolver resolver{ ios };

	ssl::stream<tcp::socket> stream{ ios, ctx };



	// Look up the domain name

	auto const lookup = resolver.resolve({ host, port });



	// Make the connection on the IP address we get from a lookup

	boost::asio::connect(stream.next_layer(), lookup);



	// Perform the SSL handshake

	stream.handshake(ssl::stream_base::client);



	// Set up an HTTP GET request message

	http::request<http::string_body> req{ http::verb::get, target+paramOn, 11 };

	req.set(http::field::host, host);

	req.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);



	// Send the HTTP request to the remote host

	http::write(stream, req);



	// This buffer is used for reading and must be persisted

	boost::beast::flat_buffer buffer;



	// Declare a container to hold the response

	http::response<http::dynamic_body> res;



	// Receive the HTTP response

	http::read(stream, buffer, res);



	// Write the message to standard out

	std::cout << res << std::endl;



	// Gracefully close the stream

	boost::system::error_code ec;

	stream.shutdown(ec);

	if (ec == boost::asio::error::eof)

	{

		// Rationale:

		// http://stackoverflow.com/questions/25587403/boost-asio-ssl-async-shutdown-always-finishes-with-an-error

		ec.assign(0, ec.category());

	}

	if (ec)

		throw boost::system::system_error{ ec };



	// If we get here then the connection is closed gracefully

}

catch (std::exception const& e)

{

	std::cerr << "Error: " << e.what() << std::endl;

	return EXIT_FAILURE;

}

return EXIT_SUCCESS;

}`

Error: handshake: dh key too small

[aikuimail]

the server dose not have a certificate with the https！

[vinniefalco]

The beat example only comes with a couple of root certificates. Most likely your server was signed with a root certificate that is not one that comes with the example code. You will need to do more sophisticated certificate verification. Unfortunately that is beyond the scope of the beast examples.

[vinniefalco]

If you're going to quote code please use triple backqoutes ```

[vinniefalco]

Has this issue been resolved?

[vinniefalco]

It looks like there is nothing more than I can do to help with this issue so I will go ahead and close it. Feel free to create a new issue if you continue to encounter difficulties. Also, when quoting code, consider surrounding it with triple backquotes (```) in order that it be correctly formatted.