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/*
* Listener.cpp
*
* Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "Listener.h"
#include "FdManager.h"
#include "ServerConnection.h"
#include <Common/Logger.h>
#include <cerrno>
#include <cstring>
#include <fcntl.h>
namespace Mad {
namespace Net {
void Listener::acceptHandler(int) {
int sd;
struct sockaddr_in sa;
socklen_t addrlen = sizeof(sa);
while((sd = accept(sock, (struct sockaddr*)&sa, &addrlen)) >= 0) {
ServerConnection *con = new ServerConnection(sd, IPAddress(sa), dh_params, x905CertFile, x905KeyFile);
boost::signals::connection con1 = con->signalConnected().connect(boost::bind(&Listener::connectHandler, this, con));
boost::signals::connection con2 = con->signalDisconnected().connect(boost::bind(&Listener::disconnectHandler, this, con));
connections.insert(std::make_pair(con, std::make_pair(con1, con2)));
addrlen = sizeof(sa);
}
}
void Listener::connectHandler(ServerConnection *con) {
std::map<ServerConnection*, std::pair<boost::signals::connection, boost::signals::connection> >::iterator it = connections.find(con);
if(it == connections.end())
return;
// Disconnect signal handlers
it->second.first.disconnect();
it->second.second.disconnect();
connections.erase(it);
signal(con);
}
void Listener::disconnectHandler(ServerConnection *con) {
std::map<ServerConnection*, std::pair<boost::signals::connection, boost::signals::connection> >::iterator it = connections.find(con);
if(it == connections.end())
return;
delete it->first;
connections.erase(it);
}
Listener::Listener(const std::string &x905CertFile0, const std::string &x905KeyFile0, const IPAddress &address0) throw(Exception)
: x905CertFile(x905CertFile0), x905KeyFile(x905KeyFile0), address(address0) {
gnutls_dh_params_init(&dh_params);
gnutls_dh_params_generate2(dh_params, 768);
sock = socket(PF_INET, SOCK_STREAM, 0);
if(sock < 0)
throw Exception("socket()", Exception::INTERNAL_ERRNO, errno);
// Set non-blocking flag
int flags = fcntl(sock, F_GETFL, 0);
if(flags < 0) {
close(sock);
throw Exception("fcntl()", Exception::INTERNAL_ERRNO, errno);
}
fcntl(sock, F_SETFL, flags | O_NONBLOCK);
// Don't linger
struct linger linger = {1, 0};
setsockopt(sock, SOL_SOCKET, SO_LINGER, &linger, sizeof(linger));
if(bind(sock, address.getSockAddr(), address.getSockAddrLength()) < 0) {
close(sock);
throw Exception("bind()", Exception::INTERNAL_ERRNO, errno);
}
if(listen(sock, 64) < 0) {
close(sock);
throw Exception("listen()", Exception::INTERNAL_ERRNO, errno);
}
FdManager::get()->registerFd(sock, boost::bind(&Listener::acceptHandler, this, _1), POLLIN);
}
Listener::~Listener() {
for(std::map<ServerConnection*,std::pair<boost::signals::connection, boost::signals::connection> >::iterator con = connections.begin(); con != connections.end(); ++con) {
con->first->disconnect();
delete con->first;
}
shutdown(sock, SHUT_RDWR);
close(sock);
gnutls_dh_params_deinit(dh_params);
}
}
}
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