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/*
* The Mana World Server
* Copyright 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World 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 any later version.
*
* The Mana World 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 The Mana World; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*/
#include "connectionhandler.h"
#include "chatchannelmanager.h"
#include "messagein.h"
#include "messageout.h"
#include "netcomputer.h"
#include "utils/logger.h"
#ifdef SCRIPT_SUPPORT
#include "script.h"
#endif
std::string
ip4ToString(unsigned int ip4addr)
{
std::stringstream ss;
ss << (ip4addr & 0x000000ff) << "."
<< ((ip4addr & 0x0000ff00) >> 8) << "."
<< ((ip4addr & 0x00ff0000) >> 16) << "."
<< ((ip4addr & 0xff000000) >> 24);
return ss.str();
}
////////////////
ClientData::ClientData():
inp(0)
{
}
bool ConnectionHandler::startListen(enet_uint16 port)
{
// Bind the server to the default localhost.
address.host = ENET_HOST_ANY;
address.port = port;
LOG_INFO("Listening on port " << port << "...", 0);
host = enet_host_create(&address /* the address to bind the server host to */,
MAX_CLIENTS /* allow up to MAX_CLIENTS clients and/or outgoing connections */,
0 /* assume any amount of incoming bandwidth */,
0 /* assume any amount of outgoing bandwidth */);
return host;
}
void ConnectionHandler::stopListen()
{
// - Disconnect all clients (close sockets)
// TODO: probably there's a better way.
ENetPeer *currentPeer;
for (currentPeer = host->peers;
currentPeer < &host->peers[host->peerCount];
++currentPeer)
{
if (currentPeer->state == ENET_PEER_STATE_CONNECTED)
{
enet_peer_disconnect(currentPeer, 0);
enet_host_flush(host);
enet_peer_reset(currentPeer);
}
}
enet_host_destroy(host);
// FIXME: memory leak on NetComputers
}
void ConnectionHandler::flush()
{
enet_host_flush(host);
}
void ConnectionHandler::process()
{
ENetEvent event;
// Process Enet events and do not block.
while (enet_host_service(host, &event, 0) > 0) {
switch (event.type) {
case ENET_EVENT_TYPE_CONNECT:
{
LOG_INFO("A new client connected from " <<
ip4ToString(event.peer->address.host) << ":" <<
event.peer->address.port, 0);
NetComputer *comp = computerConnected(event.peer);
clients.push_back(comp);
/*LOG_INFO(ltd->host->peerCount <<
" client(s) connected", 0);*/
// Store any relevant client information here.
event.peer->data = (void *)comp;
} break;
case ENET_EVENT_TYPE_RECEIVE:
{
// Convert the client IP address to string
// representation
std::string ipaddr = ip4ToString(event.peer->address.host);
NetComputer *comp = (NetComputer *)event.peer->data;
#ifdef SCRIPT_SUPPORT
// This could be good if you wanted to extend the
// server protocol using a scripting language. This
// could be attained by using allowing scripts to
// "hook" certain messages.
//script->message(buffer);
#endif
// If the scripting subsystem didn't hook the message
// it will be handled by the default message handler.
// Make sure that the packet is big enough (> short)
if (event.packet->dataLength >= 2) {
MessageIn msg((char *)event.packet->data,
event.packet->dataLength);
LOG_INFO("Received message " << msg.getId() << " ("
<< event.packet->dataLength << " B) from "
<< ipaddr, 2);
processMessage(comp, msg);
} else {
LOG_ERROR("Message too short from " << ipaddr, 0);
}
/* Clean up the packet now that we're done using it. */
enet_packet_destroy(event.packet);
} break;
case ENET_EVENT_TYPE_DISCONNECT:
{
NetComputer *comp = (NetComputer *)event.peer->data;
LOG_INFO(ip4ToString(event.peer->address.host) << " disconnected.", 0);
// Reset the peer's client information.
computerDisconnected(comp);
clients.erase(std::find(clients.begin(), clients.end(), comp));
event.peer->data = NULL;
} break;
default: break;
}
}
}
void ConnectionHandler::sendToEveryone(const MessageOut &msg)
{
for (NetComputers::iterator i = clients.begin(), i_end = clients.end();
i != i_end; ++i) {
(*i)->send(msg);
}
}
unsigned int ConnectionHandler::getClientNumber()
{
return clients.size();
}
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