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module;
#include <boost/asio/connect.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <boost/asio/ssl.hpp>
#include <boost/beast/core.hpp>
#include <boost/beast/http.hpp>
export module routemon:http.client;
export import :http.common;
namespace net = boost::asio;
namespace ssl = net::ssl;
using tcp = net::ip::tcp;
namespace routemon::http {
export class client {
net::io_context& ioc_;
ssl::context sslc_{ssl::context::tlsv12_client};
tcp::resolver resolver_;
public:
explicit client(net::io_context& ioc)
: ioc_{ioc}, resolver_{ioc}
{
sslc_.set_default_verify_paths();
sslc_.set_verify_mode(net::ssl::verify_peer | net::ssl::verify_fail_if_no_peer_cert);
}
template<class ReqBody>
auto do_request(bhttp::request<ReqBody>& req) -> bhttp::response<bhttp::dynamic_body> {
auto stream = ssl::stream<beast::tcp_stream>{ioc_, sslc_};
auto host = std::string{req.at(bhttp::field::host)};
if (!SSL_set_tlsext_host_name(stream.native_handle(), host.c_str())) {
throw beast::system_error(static_cast<int>(::ERR_get_error()),
net::error::get_ssl_category());
}
stream.set_verify_callback(ssl::host_name_verification(host));
auto const results = resolver_.resolve(host, "443");
beast::get_lowest_layer(stream).connect(results);
stream.handshake(ssl::stream_base::client);
req.set(bhttp::field::user_agent, "routemon/1.0");
bhttp::write(stream, req);
auto buffer = beast::flat_buffer{};
auto res = bhttp::response<bhttp::dynamic_body>{};
bhttp::read(stream, buffer, res);
auto ec = beast::error_code{};
stream.shutdown(ec);
if (ec != net::ssl::error::stream_truncated)
throw beast::system_error{ec};
return res;
}
};
} // namespace routemon::http
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