C++ Network Library Code

//            Copyright (c) Glyn Matthews 2009.
// 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)


//[ simple_wget_main
/*
  This is a very basic clone of wget.  It's missing a lot of
  features, such as content-type detection, but it does the
  fundamental things the same.
  
  It demonstrates the use the http::uri and the http::client.
*/


#include <boost/network.hpp>
#include <boost/network/uri/http/uri.hpp>
#include <string>
#include <fstream>
#include <iostream>


namespace http = boost::network::http;
namespace uri = boost::network::uri;


namespace {
std::string get_filename(const char *url) {
    uri::http::uri uri(url);
    std::string path = uri::path(uri);
    std::size_t index = path.find_last_of('/');
    std::string filename = path.substr(index + 1);
    return filename.empty()? "index.html" : filename;
}
}


int
main(int argc, char *argv[]) {
    
    if (argc != 2) {
        std::cerr << "Usage: " << argv[0] << " url" << std::endl;
        return 1;
    }

    try {
        http::client client;
        const char *uri = argv[1];
        http::request request(uri);
        http::response response = client.get(request);

        std::string filename = get_filename(uri);
        std::cout << "Saving to: " << filename << std::endl;
        std::ofstream ofs(filename.c_str());
        ofs << boost::network::body(response) << std::endl;
    }
    catch (std::exception &e) {
        std::cerr << e.what() << std::endl;
        return 1;
    }

    return 0;
}
//]