94 lines
2.8 KiB
C++
94 lines
2.8 KiB
C++
//
|
|
// sync_client.cpp
|
|
// ~~~~~~~~~~~~~~~
|
|
//
|
|
// Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
|
|
#include <array>
|
|
#include <iostream>
|
|
#include <iomanip>
|
|
#include <ostream>
|
|
#include <string>
|
|
#include <boost/asio.hpp>
|
|
#include "socks4.hpp"
|
|
|
|
using boost::asio::ip::tcp;
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
try
|
|
{
|
|
if (argc != 4)
|
|
{
|
|
std::cout << "Usage: sync_client <socks4server> <socks4port> <user>\n";
|
|
std::cout << "Examples:\n";
|
|
std::cout << " sync_client 127.0.0.1 1080 chris\n";
|
|
std::cout << " sync_client localhost socks chris\n";
|
|
return 1;
|
|
}
|
|
|
|
boost::asio::io_context io_context;
|
|
|
|
// Get a list of endpoints corresponding to the SOCKS 4 server name.
|
|
tcp::resolver resolver(io_context);
|
|
auto endpoints = resolver.resolve(argv[1], argv[2]);
|
|
|
|
// Try each endpoint until we successfully establish a connection to the
|
|
// SOCKS 4 server.
|
|
tcp::socket socket(io_context);
|
|
boost::asio::connect(socket, endpoints);
|
|
|
|
// Get an endpoint for the Boost website. This will be passed to the SOCKS
|
|
// 4 server. Explicitly specify IPv4 since SOCKS 4 does not support IPv6.
|
|
auto http_endpoint = *resolver.resolve(tcp::v4(), "www.boost.org", "http");
|
|
|
|
// Send the request to the SOCKS 4 server.
|
|
socks4::request socks_request(
|
|
socks4::request::connect, http_endpoint, argv[3]);
|
|
boost::asio::write(socket, socks_request.buffers());
|
|
|
|
// Receive a response from the SOCKS 4 server.
|
|
socks4::reply socks_reply;
|
|
boost::asio::read(socket, socks_reply.buffers());
|
|
|
|
// Check whether we successfully negotiated with the SOCKS 4 server.
|
|
if (!socks_reply.success())
|
|
{
|
|
std::cout << "Connection failed.\n";
|
|
std::cout << "status = 0x" << std::hex << socks_reply.status();
|
|
return 1;
|
|
}
|
|
|
|
// Form the HTTP request. We specify the "Connection: close" header so that
|
|
// the server will close the socket after transmitting the response. This
|
|
// will allow us to treat all data up until the EOF as the response.
|
|
std::string request =
|
|
"GET / HTTP/1.0\r\n"
|
|
"Host: www.boost.org\r\n"
|
|
"Accept: */*\r\n"
|
|
"Connection: close\r\n\r\n";
|
|
|
|
// Send the HTTP request.
|
|
boost::asio::write(socket, boost::asio::buffer(request));
|
|
|
|
// Read until EOF, writing data to output as we go.
|
|
std::array<char, 512> response;
|
|
boost::system::error_code error;
|
|
while (std::size_t s = socket.read_some(
|
|
boost::asio::buffer(response), error))
|
|
std::cout.write(response.data(), s);
|
|
if (error != boost::asio::error::eof)
|
|
throw std::system_error(error);
|
|
}
|
|
catch (std::exception& e)
|
|
{
|
|
std::cout << "Exception: " << e.what() << "\n";
|
|
}
|
|
|
|
return 0;
|
|
}
|