i2pd/UPnP.cpp
2014-02-09 15:15:47 -05:00

69 lines
2.0 KiB
C++

#include <string>
#include <boost/lexical_cast.hpp>
#include <boost/bind.hpp>
#include "Log.h"
#include "UPnP.h"
namespace i2p
{
UPnP::UPnP (): m_Timer (m_Service),
m_Endpoint (boost::asio::ip::udp::v4 (), UPNP_REPLY_PORT),
m_MulticastEndpoint (boost::asio::ip::address::from_string (UPNP_GROUP), UPNP_PORT),
m_Socket (m_Service, m_Endpoint.protocol ())
{
m_Socket.set_option (boost::asio::socket_base::receive_buffer_size (65535));
m_Socket.set_option (boost::asio::socket_base::send_buffer_size (65535));
m_Socket.set_option(boost::asio::ip::udp::socket::reuse_address(true));
}
UPnP::~UPnP ()
{
}
void UPnP::Run ()
{
DiscoverRouter ();
m_Service.run ();
}
void UPnP::DiscoverRouter ()
{
m_Timer.expires_from_now (boost::posix_time::seconds(5)); // 5 seconds
m_Timer.async_wait (boost::bind (&UPnP::HandleTimer, this, boost::asio::placeholders::error));
std::string address = UPNP_GROUP;
address += ":" + boost::lexical_cast<std::string>(UPNP_PORT);
std::string request = "M-SEARCH * HTTP/1.1\r\n"
"HOST: " + address + "\r\n"
"ST:" + UPNP_ROUTER + "\r\n"
"MAN:\"ssdp:discover\"\r\n"
"MX:3\r\n"
"\r\n\r\n";
m_Socket.send_to (boost::asio::buffer (request.c_str (), request.length ()), m_MulticastEndpoint);
Receive ();
}
void UPnP::Receive ()
{
m_Socket.async_receive_from (boost::asio::buffer (m_ReceiveBuffer, UPNP_MAX_PACKET_LEN), m_SenderEndpoint,
boost::bind (&UPnP::HandleReceivedFrom, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred));
}
void UPnP::HandleReceivedFrom (const boost::system::error_code& ecode, size_t bytes_transferred)
{
LogPrint ("UPnP: ", bytes_transferred, " received from ", m_SenderEndpoint.address ());
std::string str (m_ReceiveBuffer, bytes_transferred);
LogPrint (str);
m_Timer.cancel ();
}
void UPnP::HandleTimer (const boost::system::error_code& ecode)
{
if (ecode != boost::asio::error::operation_aborted)
{
LogPrint ("UPnP: timeout expired");
m_Service.stop ();
}
}
}