khanat-opennel-code/code/nel/samples/net/login_system/frontend_service.cpp
2014-09-13 10:30:58 -07:00

213 lines
4.6 KiB
C++

// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
/*
* Layer 4 and Service example, front-end server.
*
* To run this program, ensure there is a file "frontend_service.cfg"
* containing the location of the naming service (NSHost, NSPort)
* in the working directory.
* The NeL naming_service, time_service, login_service, welcome_service must be running.
*/
// We're using the NeL Service framework and layer 5.
#include "nel/misc/config_file.h"
#include "nel/misc/bit_mem_stream.h"
#include "nel/net/callback_server.h"
#include "nel/net/service.h"
#include "nel/net/login_server.h"
#ifdef NL_OS_WINDOWS
# ifndef NL_COMP_MINGW
# define NOMINMAX
# endif
# include <windows.h>
#endif // NL_OS_WINDOWS
using namespace std;
using namespace NLNET;
using namespace NLMISC;
#ifndef NL_LS_CFG
#define NL_LS_CFG ""
#endif // NL_LS_CFG
//#define USE_UDP
#undef USE_UDP
#ifndef USE_UDP
//
// TCP server mode
//
/*
* Connection callback for a client
*/
void onConnectionClient (TSockId from, const CLoginCookie &cookie)
{
nlinfo ("The client with uniq Id %d is connected", cookie.getUserId ());
// store the user id in appId
from->setAppId (cookie.getUserId ());
}
/*
* Disconnection callback for a client
*/
void onDisconnectClient (TSockId from, void *arg)
{
nlinfo ("A client with uniq Id %d has disconnected", from->appId ());
// tell the login system that this client is disconnected
CLoginServer::clientDisconnected ((uint32) from->appId ());
}
/*
* CFrontEndService, based on IService
*/
class CFrontEndService : public IService
{
private:
/// The server on which the clients connect
CCallbackServer _FServer;
public:
/*
* Initialization
*/
void init()
{
// connect the front end login system
uint16 fsPort = 37373;
try
{
fsPort = IService::ConfigFile.getVar("FSPort").asInt();
}
catch (const EUnknownVar&)
{
}
_FServer.init(fsPort);
CLoginServer::init (_FServer, onConnectionClient);
//
_FServer.setDisconnectionCallback(onDisconnectClient, NULL);
}
bool update()
{
_FServer.update();
return true;
}
};
#else // USE_UDP
//
// UDP server mode
//
#include "nel/net/udp_sock.h"
/*
* CFrontEndService, based on IService
*/
class CFrontEndService : public IService
{
private:
/// The server on which the clients connect
CUdpSock *_FServer;
public:
/*
* Initialization
*/
void init()
{
// connect the front end login system
uint16 fesPort = 37373;
try
{
fesPort = IService5::ConfigFile.getVar("FESPort").asInt();
}
catch (const EUnknownVar&)
{
}
// Socket
_FServer = new CUdpSock( false );
nlassert( _FServer );
// Test of multihomed host
vector<CInetAddress> addrlist;
addrlist = CInetAddress::localAddresses();
vector<CInetAddress>::iterator ivi;
for ( ivi=addrlist.begin(); ivi!=addrlist.end(); ++ivi )
{
nlinfo( "%s", (*ivi).asIPString().c_str() );
}
addrlist[0].setPort( fesPort );
_FServer->bind( addrlist[0] );
CLoginServer::init (*_FServer, NULL);
}
bool update()
{
uint8 buf[64000];
uint len;
CInetAddress addr;
while (_FServer->dataAvailable ())
{
len = 64000;
_FServer->receivedFrom (buf, len, addr);
CBitMemStream msgin (true);
msgin.clear ();
memcpy (msgin.bufferToFill (len), &buf[0], len);
CLoginCookie lc;
msgin.serial (lc);
nlinfo ("Receive the cookie %s from %s", lc.toString ().c_str(), addr.asString ().c_str());
string res = CLoginServer::isValidCookie (lc);
// send the result
CBitMemStream msgout;
msgout.serial (res);
uint32 l = msgout.length ();
_FServer->sendTo (msgout.buffer (), l, addr);
}
return true;
}
};
#endif // USE_UDP
/*
* Declare a service with the class CFrontEndService, the names "FS" (short) and "frontend_service" (long).
* The port is dynamically find and there's no callback array.
*/
NLNET_SERVICE_MAIN (CFrontEndService, "FS", "frontend_service", 0, EmptyCallbackArray, NL_LS_CFG, "")