void socks_connection::on_request_domain_lookup(boost::system::error_code const& ec
, asio::ip::tcp::resolver::iterator iter)
{
if (ec || iter == asio::ip::tcp::resolver::iterator())
{
if (ec)
{
printf("socks_connection::on_request_domain_lookup(%s): (%d) %s\n"
, command(), ec.value(), ec.message().c_str());
}
else
{
printf("socks_connection::on_request_domain_lookup(%s): empty response\n"
, command());
}
// +----+-----+-------+------+----------+----------+
// |VER | REP | RSV | ATYP | BND.ADDR | BND.PORT |
// +----+-----+-------+------+----------+----------+
// | 1 | 1 | X'00' | 1 | Variable | 2 |
// +----+-----+-------+------+----------+----------+
m_in_buffer[0] = m_version; // version
m_in_buffer[1] = 4; // response (host unreachable)
m_in_buffer[2] = 0; // reserved
m_in_buffer[3] = 1; // IPv4
memset(&m_in_buffer[4], 0, 4);
m_in_buffer[8] = 0; // port
m_in_buffer[9] = 0;
auto self = shared_from_this();
asio::async_write(m_client_connection
, asio::const_buffers_1(&m_in_buffer[0], 10)
, [=](boost::system::error_code const& ec, size_t)
{
self->close_connection();
});
return;
}
printf("socks_connection::on_request_domain_lookup(%s): connecting to: %s port: %d\n"
, command()
, iter->endpoint().address().to_string().c_str()
, iter->endpoint().port());
open_forward_connection(iter->endpoint());
}
void http_proxy::on_domain_lookup(boost::system::error_code const& ec
, const asio::ip::tcp::resolver::iterator& iter)
{
if (ec || iter == asio::ip::tcp::resolver::iterator())
{
if (ec)
{
std::printf("http_proxy::on_domain_lookup: (%d) %s\n"
, ec.value(), ec.message().c_str());
}
else
{
std::printf("http_server::on_request_domain_lookup: empty response\n");
}
error(503, "Resource Temporarily Unavailable");
return;
}
open_forward_connection(iter->endpoint());
}