如何让C ++使用Boost代理服务器[关闭](How to make a proxy server

我在做一个Web应用程序的fuzzer和我的代理服务器，我使用的是开源的代码（现在）由名为亚历克斯·奥特的人开发的。我注意到，虽然，当我做一些网站，那些没有得到拍摄的请求，所以我真的想用C来写我自己的代理+ +，但我也绝对不知道从哪里开始。可能有人解释给我吗？

最终目标是真正能够捕捉，每一个来通过代理到一个文件，这我已经在做，但我现在已经没有赶上这一切请求代理服务器的请求，那些我知道在那里。

编辑：既然问题是不清楚，那就是：我想知道的代码是什么写在C ++使用升压扩展库代理服务器。在过去的四个月中同样的问题。

嗯，这里是让你开始有点功能的例子。它转发两个连接之间。请注意，这个简单的例子不会为Web浏览器的工作，作为客户端将尝试多个连接，而这个例子只侦听一个。以此为（很简单）的基础上，你应该能够取得一些进展。

有趣的事情发生在handle_read ，这是接收到数据时执行回调。这个函数转发插座之间的数据。请注意，当我们最初称它是订单，我们在颠倒通过套接字的“本地”和“远程”连接（ read_from和write_to ）。

#include <iostream>
using namespace std;

#include <boost/asio.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/thread.hpp>
#include <boost/bind.hpp>

boost::asio::io_service& io_service()
{
   static boost::asio::io_service svc;
   return svc;
}

char local_data[1024] = {0};
char remote_data[1024] = {0};

void handle_read(
   boost::asio::ip::tcp::socket& read_from,
   boost::asio::ip::tcp::socket& write_to,
   char* read_buffer,
   size_t bytes,
   const boost::system::error_code& e)
{
   // this function is called whenever data is received

   // for debugging purposes, show the data in the console window
   // or write to file, or whatever...
   std::string data(read_buffer, read_buffer + bytes);    
   std::cout << data << "\n";

   // forward the received data on to "the other side"    
   write_to.send(
      boost::asio::buffer(read_buffer, bytes));

   // read more data from "this side"
   read_from.async_read_some(
      boost::asio::buffer(read_buffer, 1024),
      boost::bind(handle_read, boost::ref(read_from), boost::ref(write_to), read_buffer, boost::asio::placeholders::bytes_transferred, boost::asio::placeholders::error));
}

int main(int argc, char** argv)
{
   if(argc == 5)
   {
      boost::asio::io_service::work w(io_service());

      boost::thread t(boost::bind(&boost::asio::io_service::run, (&io_service())));

      // extract the connection information from the command line
      boost::asio::ip::address local_address = boost::asio::ip::address::from_string(argv[1]);
      uint16_t local_port = boost::lexical_cast<uint16_t>(argv[2]);
      boost::asio::ip::address remote_address = boost::asio::ip::address::from_string(argv[3]);
      uint16_t remote_port = boost::lexical_cast<uint16_t>(argv[4]);

      boost::asio::ip::tcp::endpoint local_ep(local_address, local_port);
      boost::asio::ip::tcp::endpoint remote_ep(remote_address, remote_port);

      // start listening on the "local" socket -- note this does not
      // have to be local, you could in theory forward through a remote device
      // it's called "local" in the logical sense    
      boost::asio::ip::tcp::acceptor listen(io_service(), local_ep);
      boost::asio::ip::tcp::socket local_socket(io_service());
      listen.accept(local_socket);

      // open the remote connection
      boost::asio::ip::tcp::socket remote_socket(io_service());
      remote_socket.open(remote_ep.protocol());
      remote_socket.connect(remote_ep);

      // start listening for data on the "local" connection
      local_socket.async_receive(
         boost::asio::buffer(local_data, 1024),
         boost::bind(handle_read, boost::ref(local_socket), boost::ref(remote_socket), local_data, boost::asio::placeholders::bytes_transferred, boost::asio::placeholders::error));

      // also listen for data on the "remote" connection
      remote_socket.async_receive(
         boost::asio::buffer(remote_data, 1024),
         boost::bind(handle_read, boost::ref(remote_socket), boost::ref(local_socket), remote_data, boost::asio::placeholders::bytes_transferred, boost::asio::placeholders::error));

      t.join();
   }
   else
   {
      cout << "proxy <local ip> <port> <remote ip> <port>\n";
   }

   return 0;
}