/*
* wclient.cpp
*
* Author, Copyright: Oleg Borodin <onborodin@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
*/
#include <iostream>
#include <istream>
#include <ostream>
#include <string>
#include <regex>
#include <boost/asio.hpp>
#include <boost/bind.hpp>
using namespace boost::asio;
class wclient {
public:
boost::asio::streambuf request_buffer;
boost::asio::streambuf response_buffer;
std::string hostname = "localhost";
std::string url = "/";
std::string port = "http";
wclient(std::string _hostname, std::string _url) : hostname(_hostname), url(_url) {
/* nope */
}
void run() {
boost::asio::io_service io_service;
try {
std::cout << "# try http get host " << hostname << " port " << port << "\n";
ip::tcp::resolver resolver(io_service);
ip::tcp::resolver::query query(hostname, "http");
ip::tcp::resolver::iterator endpoint_iterator = resolver.resolve(query);
ip::tcp::socket socket(io_service);
std::ostream request_stream(&request_buffer);
request_stream << "GET "<< url <<" HTTP/1.0\r\n";
request_stream << "Host: " << hostname << "\r\n";
request_stream << "Accept: */*\r\n";
request_stream << "Connection: close\r\n\r\n";
std::cout << "# try async connect\n";
boost::asio::async_connect(
socket,
endpoint_iterator,
boost::bind(
&wclient::handle_connect,
this,
boost::asio::placeholders::error,
&socket
)
);
io_service.run();
} catch (std::exception& e) {
std::cout << "# exception: " << e.what() << "\n";
}
}
void handle_connect(const boost::system::error_code& err, ip::tcp::socket *socket) {
if (err) {
std::cout << "# error while connect action: " << err.message() << "\n";
return;
}
std::cout << "# try handle connect action\n";
boost::asio::async_write(
*socket,
request_buffer,
boost::bind(
&wclient::handle_write,
this,
boost::asio::placeholders::error,
socket
)
);
}
void handle_write(const boost::system::error_code& err, ip::tcp::socket *socket) {
if (err) {
std::cout << "# error while write action: " << err.message() << "\n";
return;
}
std::cout << "# try handle write action\n";
boost::asio::async_read_until(
*socket,
response_buffer,
"\r\n",
boost::bind(
&wclient::handle_read,
this,
boost::asio::placeholders::error,
socket
)
);
}
void handle_read(const boost::system::error_code& err, ip::tcp::socket *socket) {
if (err) {
std::cout << "# error while read action: " << err.message() << "\n";
return;
}
std::cout << "# try handle read action\n";
std::istream response_stream(&response_buffer);
std::regex re("^HTTP[/]1.[01]");
std::smatch ma;
std::string header;
while (std::getline(response_stream, header) && header != "\r") {
std::regex_search(header, ma, re);
if (ma.size() > 0) {
std::cout << "# result: " << header << "\n";
}
}
std::cout << "# the end\n";
}
};
int main(int argc, char* argv[]) {
wclient wclient("wiki.unix7.org", "/");
wclient.run();
return 0;
}