EVEPktDispatch.cpp

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/*
    ------------------------------------------------------------------------------------
    LICENSE:
    ------------------------------------------------------------------------------------
    This file is part of EVEmu: EVE Online Server Emulator
    Copyright 2006 - 2021 The EVEmu Team
    For the latest information visit https://evemu.dev
    ------------------------------------------------------------------------------------
    This program is free software; you can redistribute it and/or modify it under
    the terms of the GNU Lesser General Public License as published by the Free Software
    Foundation; either version 2 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 Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License along with
    this program; if not, write to the Free Software Foundation, Inc., 59 Temple
    Place - Suite 330, Boston, MA 02111-1307, USA, or go to
    http://www.gnu.org/copyleft/lesser.txt.
    ------------------------------------------------------------------------------------
    Author:     Zhur
    Rewrite:    Allan
*/

#include "eve-common.h"

#include "network/EVEPktDispatch.h"
#include "packets/AccountPkts.h"
#include "packets/General.h"
#include "python/PyPacket.h"
#include "python/PyVisitor.h"
#include "python/PyRep.h"

bool EVEPacketDispatcher::DispatchPacket(PyPacket* packet)
{
    switch(packet->type) {
        case AUTHENTICATION_REQ: {
            //check the string part, just for good measure
            if (packet->type_string != "macho.AuthenticationReq") {
                sLog.Error("EVEPacketDispatcher","Received AUTHENTICATION_RSP with invalid type string '%s'", packet->type_string.c_str());
                return false;
            }

            AuthenticationReq req;
            if (!req.Decode(packet->payload))  {
                sLog.Error("EVEPacketDispatcher","Failed to decode AuthenticationReq");
                return false;
            }

            return Handle_AuthenticationReq(packet, req);
        }
        case AUTHENTICATION_RSP: {
            //check the string part, just for good measure
            if (packet->type_string != "macho.AuthenticationRsp") {
                sLog.Error("EVEPacketDispatcher","Received AUTHENTICATION_RSP with invalid type string '%s'", packet->type_string.c_str());
                return false;
            }

            AuthenticationRsp rsp;
            if (!rsp.Decode(packet->payload)) {
                sLog.Error("EVEPacketDispatcher","Failed to decode AuthenticationRsp");
                return false;
            }

            return Handle_AuthenticationRsp(packet, rsp);
        }
        case CALL_REQ: {
            //check the string part, just for good measure
            if (packet->type_string != "macho.CallReq") {
                sLog.Error("EVEPacketDispatcher","Received CALL_REQ with invalid type string '%s'", packet->type_string.c_str());
                return false;
            }

            PyCallStream call;
            if (!call.Decode(packet->type_string, packet->payload)) {
                sLog.Error("EVEPacketDispatcher","Failed to convert packet into a call stream");
                return false;
            }

            return Handle_CallReq(packet, call);
        }
        case CALL_RSP: {
            //check the string part, just for good measure
            if (packet->type_string != "macho.CallRsp") {
                sLog.Error("EVEPacketDispatcher","Received CALL_RSP with invalid type string '%s'", packet->type_string.c_str());
                return false;
            }

            //TODO: decode substream in tuple

            return Handle_CallRsp(packet);
        }
        case NOTIFICATION: {
            //check the string part, just for good measure
            if (packet->type_string != "macho.Notification") {
                sLog.Error("EVEPacketDispatcher","Received NOTIFICATION with invalid type string '%s'", packet->type_string.c_str());
                return false;
            }

            return Handle_Notify(packet);
        }
        case ERRORRESPONSE: {
            //check the string part, just for good measure
            if (packet->type_string != "macho.ErrorResponse") {
                sLog.Error("EVEPacketDispatcher","Received ERRORRESPONSE with invalid type string '%s'", packet->type_string.c_str());
                return false;
            }

            ErrorResponse error;
            if (!error.Decode(packet->payload)) {
                sLog.Error("EVEPacketDispatcher","Failed to decode Error Response");
                return false;
            }

            return Handle_ErrorResponse(packet, error);
        }
        case SESSIONCHANGENOTIFICATION: {
            //check the string part, just for good measure
            if (packet->type_string != "macho.SessionChangeNotification") {
                sLog.Error("EVEPacketDispatcher","Received SESSIONCHANGENOTIFICATION with invalid type string '%s'", packet->type_string.c_str());
                return false;
            }

            SessionChangeNotification sessionChange;
            if (!sessionChange.Decode(packet->payload)) {
                sLog.Error("EVEPacketDispatcher","Failed to decode session change notification");
                return false;
            }

            return Handle_SessionChange(packet, sessionChange);
        }
        case PING_REQ: {
            //check the string part, just for good measure
            if (packet->type_string != "macho.PingReq") {
                sLog.Error("EVEPacketDispatcher","Received PING_REQ with invalid type string '%s'", packet->type_string.c_str());
                return false;
            }

            return Handle_PingReq(packet);
        }
        case PING_RSP: {
            //check the string part, just for good measure
            if (packet->type_string != "macho.PingRsp") {
                sLog.Error("EVEPacketDispatcher","Received PING_RSP with invalid type string '%s'", packet->type_string.c_str());
                return false;
            }

            return Handle_PingRsp(packet);
        }
        default:
            return Handle_Other(packet);
    }
}

/* default handlers do nothing but print */
bool EVEPacketDispatcher::Handle_AuthenticationReq(PyPacket* packet, AuthenticationReq& req)
{
    sLog.Error("EVEPacketDispatcher","Unhandled Authentication Request");
    return false;
}
bool EVEPacketDispatcher::Handle_AuthenticationRsp(PyPacket* packet, AuthenticationRsp& rsp)
{
    sLog.Error("EVEPacketDispatcher","Unhandled Authentication Response");
    return false;
}

bool EVEPacketDispatcher::Handle_CallReq(PyPacket* packet, PyCallStream& req)
{
    sLog.Error("EVEPacketDispatcher","Unhandled Call Request");
    return false;
}
bool EVEPacketDispatcher::Handle_CallRsp(PyPacket* packet)
{
    sLog.Error("EVEPacketDispatcher","Unhandled Call Response");
    return false;
}
bool EVEPacketDispatcher::Handle_ErrorResponse(PyPacket* packet, ErrorResponse& body)
{
    sLog.Error("EVEPacketDispatcher","Unhandled Error Response");
    return false;
}

bool EVEPacketDispatcher::Handle_Notify(PyPacket* packet)
{
    sLog.Error("EVEPacketDispatcher","Unhandled Notification");
    return false;
}
bool EVEPacketDispatcher::Handle_SessionChange(PyPacket* packet, SessionChangeNotification& notify)
{
    sLog.Error("EVEPacketDispatcher","Unhandled SessionChange");
    return false;
}

bool EVEPacketDispatcher::Handle_PingReq(PyPacket* packet)
{
    sLog.Error("EVEPacketDispatcher","Unhandled Ping Request.");
    return false;
}
bool EVEPacketDispatcher::Handle_PingRsp(PyPacket* packet)
{
    sLog.Error("EVEPacketDispatcher","Unhandled Ping Response.");
    return false;
}

bool EVEPacketDispatcher::Handle_Other(PyPacket* packet)
{
    sLog.Error("EVEPacketDispatcher","Unhandled Packet of type %s (%i)", MACHONETMSG_TYPE_NAMES[ packet->type ], (int)packet->type);
    return false;
}