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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 <Core/Logger.h>
#include <Core/ThreadManager.h>

#include <cerrno>
#include <cstring>
#include <fcntl.h>

namespace Mad {
namespace Net {

void Listener::handleAccept(const boost::system::error_code &error, boost::shared_ptr<Connection> con) {
  if(error)
    return;

  boost::lock_guard<boost::mutex> lock(mutex);

  {
    boost::lock_guard<boost::shared_mutex> conLock(con->connectionLock);

    con->_setState(Connection::CONNECT);

    Core::Signals::Connection con1 = con->connectSignalConnected(boost::bind(&Listener::handleConnect, this, con));
    Core::Signals::Connection con2 = con->connectSignalDisconnected(boost::bind(&Listener::handleDisconnect, this, con));

    connections.insert(std::make_pair(con, std::make_pair(con1, con2)));

    con->socket.async_handshake(boost::asio::ssl::stream_base::server, boost::bind(&Connection::handleHandshake, con, boost::asio::placeholders::error));
  }

  con.reset(new Connection(sslContext));
  acceptor.async_accept(con->socket.lowest_layer(), boost::bind(&Listener::handleAccept, this, boost::asio::placeholders::error, con));
}

void Listener::handleConnect(boost::shared_ptr<Connection> con) {
  {
    boost::lock_guard<boost::mutex> lock(mutex);
    std::map<boost::shared_ptr<Connection>, std::pair<Core::Signals::Connection, Core::Signals::Connection> >::iterator it = connections.find(con);

    if(it == connections.end())
      return;

    // Disconnect signal handlers

    con->disconnectSignalConnected(it->second.first);
    con->disconnectSignalDisconnected(it->second.second);
    connections.erase(it);
  }

  signal.emit(con);
}

void Listener::handleDisconnect(boost::shared_ptr<Connection> con) {
  boost::lock_guard<boost::mutex> lock(mutex);
  connections.erase(con);
}


Listener::Listener(const std::string &x905CertFile0, const std::string &x905KeyFile0,
    const boost::asio::ip::tcp::endpoint &address0) throw(Core::Exception)
: x905CertFile(x905CertFile0), x905KeyFile(x905KeyFile0), address(address0), acceptor(Core::ThreadManager::get()->getIOService(), address),
sslContext(Core::ThreadManager::get()->getIOService(), boost::asio::ssl::context::sslv23)
{
  sslContext.set_options(boost::asio::ssl::context::default_workarounds
      | boost::asio::ssl::context::no_sslv2
      | boost::asio::ssl::context::single_dh_use);
  sslContext.use_certificate_chain_file(x905CertFile0);
  sslContext.use_private_key_file(x905KeyFile0, boost::asio::ssl::context::pem);



  boost::shared_ptr<Connection> con(new Connection(sslContext));
  acceptor.async_accept(con->socket.lowest_layer(), boost::bind(&Listener::handleAccept, this, boost::asio::placeholders::error, con));
}

Listener::~Listener() {
  for(std::map<boost::shared_ptr<Connection>,std::pair<Core::Signals::Connection, Core::Signals::Connection> >::iterator con = connections.begin(); con != connections.end(); ++con) {
    con->first->disconnect();
    con->first->waitWhileConnected();
    // TODO Optimize
  }
}

}
}