C++ WorldPacket::GetOpcode方法代码示例

void WorldSession::HandleForceSpeedChangeAckOpcodes(WorldPacket& recv_data)
{
    Opcodes opcode = recv_data.GetOpcode();
    DEBUG_LOG("WORLD: Received %s (%u, 0x%X) opcode", recv_data.GetOpcodeName(), opcode, opcode);

    /* extract packet */
    ObjectGuid guid;
    MovementInfo movementInfo;
    float  newspeed;

    recv_data >> guid;
    recv_data >> Unused<uint32>();                          // counter or moveEvent
    recv_data >> movementInfo;
    recv_data >> newspeed;

    // now can skip not our packet
    if (_player->GetObjectGuid() != guid)
        return;
    /*----------------*/

    // client ACK send one packet for mounted/run case and need skip all except last from its
    // in other cases anti-cheat check can be fail in false case
    UnitMoveType move_type;
    UnitMoveType force_move_type;

    static char const* move_type_name[MAX_MOVE_TYPE] = {  "Walk", "Run", "RunBack", "Swim", "SwimBack", "TurnRate", "Flight", "FlightBack" };

    switch (opcode)
    {
        case CMSG_FORCE_WALK_SPEED_CHANGE_ACK:          move_type = MOVE_WALK;          force_move_type = MOVE_WALK;        break;
        case CMSG_FORCE_RUN_SPEED_CHANGE_ACK:           move_type = MOVE_RUN;           force_move_type = MOVE_RUN;         break;
        case CMSG_FORCE_RUN_BACK_SPEED_CHANGE_ACK:      move_type = MOVE_RUN_BACK;      force_move_type = MOVE_RUN_BACK;    break;
        case CMSG_FORCE_SWIM_SPEED_CHANGE_ACK:          move_type = MOVE_SWIM;          force_move_type = MOVE_SWIM;        break;
        case CMSG_FORCE_SWIM_BACK_SPEED_CHANGE_ACK:     move_type = MOVE_SWIM_BACK;     force_move_type = MOVE_SWIM_BACK;   break;
        case CMSG_FORCE_TURN_RATE_CHANGE_ACK:           move_type = MOVE_TURN_RATE;     force_move_type = MOVE_TURN_RATE;   break;
        case CMSG_FORCE_FLIGHT_SPEED_CHANGE_ACK:        move_type = MOVE_FLIGHT;        force_move_type = MOVE_FLIGHT;      break;
        case CMSG_FORCE_FLIGHT_BACK_SPEED_CHANGE_ACK:   move_type = MOVE_FLIGHT_BACK;   force_move_type = MOVE_FLIGHT_BACK; break;
        default:
            sLog.outError("WorldSession::HandleForceSpeedChangeAck: Unknown move type opcode: %u", opcode);
            return;
    }

    // skip all forced speed changes except last and unexpected
    // in run/mounted case used one ACK and it must be skipped.m_forced_speed_changes[MOVE_RUN} store both.
    if (_player->m_forced_speed_changes[force_move_type] > 0)
    {
        --_player->m_forced_speed_changes[force_move_type];
        if (_player->m_forced_speed_changes[force_move_type] > 0)
            return;
    }

    if (!_player->GetTransport() && fabs(_player->GetSpeed(move_type) - newspeed) > 0.01f)
    {
        if (_player->GetSpeed(move_type) > newspeed)        // must be greater - just correct
        {
            sLog.outError("%sSpeedChange player %s is NOT correct (must be %f instead %f), force set to correct value",
                          move_type_name[move_type], _player->GetName(), _player->GetSpeed(move_type), newspeed);
            _player->SetSpeedRate(move_type, _player->GetSpeedRate(move_type), true);
        }
        else                                                // must be lesser - cheating
        {
            BASIC_LOG("Player %s from account id %u kicked for incorrect speed (must be %f instead %f)",
                      _player->GetName(), _player->GetSession()->GetAccountId(), _player->GetSpeed(move_type), newspeed);
            _player->GetSession()->KickPlayer();
        }
    }
}

void WorldSession::Handle_ServerSide( WorldPacket& recvPacket )
{
    sLog.outError("SESSION: received server-side opcode %s (0x%.4X)",
        LookupOpcodeName(recvPacket.GetOpcode()),
        recvPacket.GetOpcode());
}

void WorldSession::Handle_Deprecated( WorldPacket& recvPacket )
{
    sLog.outError( "SESSION: received deprecated opcode %s (0x%.4X)",
        LookupOpcodeName(recvPacket.GetOpcode()),
        recvPacket.GetOpcode());
}

void WorldSession::Handle_NULL( WorldPacket& recvPacket )
{
    DEBUG_LOG("SESSION: received unimplemented opcode %s (0x%.4X)",
        LookupOpcodeName(recvPacket.GetOpcode()),
        recvPacket.GetOpcode());
}

void WorldSession::Handle_EarlyProccess( WorldPacket& recvPacket )
{
    sLog.outError( "SESSION: received opcode %s (0x%.4X) that must be processed in WorldSocket::OnRead",
        LookupOpcodeName(recvPacket.GetOpcode()),
        recvPacket.GetOpcode());
}

/// Update the WorldSession (triggered by World update)
bool WorldSession::Update(PacketFilter& updater)
{
    ///- Retrieve packets from the receive queue and call the appropriate handlers
    /// not process packets if socket already closed
    WorldPacket* packet;
    while (m_Socket && !m_Socket->IsClosed() && _recvQueue.next(packet, updater))
    {
        /*#if 1
        sLog.outError( "MOEP: %s (0x%.4X)",
                        LookupOpcodeName(packet->GetOpcode()),
                        packet->GetOpcode());
        #endif*/

        OpcodeHandler const& opHandle = opcodeTable[packet->GetOpcode()];
        try
        {
            switch (opHandle.status)
            {
                case STATUS_LOGGEDIN:
                    if(!_player)
                    {
                        // skip STATUS_LOGGEDIN opcode unexpected errors if player logout sometime ago - this can be network lag delayed packets
                        if(!m_playerRecentlyLogout)
                            LogUnexpectedOpcode(packet, "the player has not logged in yet");
                    }
                    else if(_player->IsInWorld())
                        ExecuteOpcode(opHandle, packet);

                    // lag can cause STATUS_LOGGEDIN opcodes to arrive after the player started a transfer
                    break;
                case STATUS_LOGGEDIN_OR_RECENTLY_LOGGEDOUT:
                    if(!_player && !m_playerRecentlyLogout)
                    {
                        LogUnexpectedOpcode(packet, "the player has not logged in yet and not recently logout");
                    }
                    else
                        // not expected _player or must checked in packet hanlder
                        ExecuteOpcode(opHandle, packet);
                    break;
                case STATUS_TRANSFER:
                    if(!_player)
                        LogUnexpectedOpcode(packet, "the player has not logged in yet");
                    else if(_player->IsInWorld())
                        LogUnexpectedOpcode(packet, "the player is still in world");
                    else
                        ExecuteOpcode(opHandle, packet);
                    break;
                case STATUS_AUTHED:
                    // prevent cheating with skip queue wait
                    if(m_inQueue)
                    {
                        LogUnexpectedOpcode(packet, "the player not pass queue yet");
                        break;
                    }

                    // single from authed time opcodes send in to after logout time
                    // and before other STATUS_LOGGEDIN_OR_RECENTLY_LOGGOUT opcodes.
                    if (packet->GetOpcode() != CMSG_SET_ACTIVE_VOICE_CHANNEL)
                        m_playerRecentlyLogout = false;

                    ExecuteOpcode(opHandle, packet);
                    break;
                case STATUS_NEVER:
                    sLog.outError( "SESSION: received not allowed opcode %s (0x%.4X)",
                        LookupOpcodeName(packet->GetOpcode()),
                        packet->GetOpcode());
                    break;
                case STATUS_UNHANDLED:
                    DEBUG_LOG("SESSION: received not handled opcode %s (0x%.4X)",
                        LookupOpcodeName(packet->GetOpcode()),
                        packet->GetOpcode());
                    break;
                default:
                    sLog.outError("SESSION: received wrong-status-req opcode %s (0x%.4X)",
                        LookupOpcodeName(packet->GetOpcode()),
                        packet->GetOpcode());
                    break;
            }
        }
        catch (ByteBufferException &)
        {
            sLog.outError("WorldSession::Update ByteBufferException occured while parsing a packet (opcode: %u) from client %s, accountid=%i.",
                    packet->GetOpcode(), GetRemoteAddress().c_str(), GetAccountId());
            if (sLog.HasLogLevelOrHigher(LOG_LVL_DEBUG))
            {
                DEBUG_LOG("Dumping error causing packet:");
                packet->hexlike();
            }

            if (sWorld.getConfig(CONFIG_BOOL_KICK_PLAYER_ON_BAD_PACKET))
            {
                DETAIL_LOG("Disconnecting session [account id %u / address %s] for badly formatted packet.",
                    GetAccountId(), GetRemoteAddress().c_str());

                KickPlayer();
            }
        }

        delete packet;
//.........这里部分代码省略.........

void WorldSession::SizeError(WorldPacket const& packet, uint32 size) const
{
    sLog.outError("Client (account %u) send packet %s (%u) with size " SIZEFMTD " but expected %u (attempt crash server?), skipped",
        GetAccountId(),LookupOpcodeName(packet.GetOpcode()),packet.GetOpcode(),packet.size(),size);
}

void WorldSession::HandleForceSpeedChangeAck(WorldPacket &recv_data)
{
    uint32 opcode = recv_data.GetOpcode();
    sLog->outDebug(LOG_FILTER_NETWORKIO, "WORLD: Recvd %s (%u, 0x%X) opcode", LookupOpcodeName(opcode), opcode, opcode);

    /* extract packet */
    uint64 guid;
    uint32 unk1;
    float  newspeed;

    recv_data.readPackGUID(guid);

    // now can skip not our packet
    if (_player->GetGUID() != guid)
    {
        recv_data.rfinish();                   // prevent warnings spam
        return;
    }

    // continue parse packet

    recv_data >> unk1;                                      // counter or moveEvent

    MovementInfo movementInfo;
    movementInfo.guid = guid;
    ReadMovementInfo(recv_data, &movementInfo);

    recv_data >> newspeed;
    /*----------------*/

    // client ACK send one packet for mounted/run case and need skip all except last from its
    // in other cases anti-cheat check can be fail in false case
    UnitMoveType move_type;
    UnitMoveType force_move_type;

    static char const* move_type_name[MAX_MOVE_TYPE] = {  "Walk", "Run", "RunBack", "Swim", "SwimBack", "TurnRate", "Flight", "FlightBack", "PitchRate" };

    switch (opcode)
    {
        case CMSG_FORCE_WALK_SPEED_CHANGE_ACK:          move_type = MOVE_WALK;          force_move_type = MOVE_WALK;        break;
        case CMSG_FORCE_RUN_SPEED_CHANGE_ACK:           move_type = MOVE_RUN;           force_move_type = MOVE_RUN;         break;
        case CMSG_FORCE_RUN_BACK_SPEED_CHANGE_ACK:      move_type = MOVE_RUN_BACK;      force_move_type = MOVE_RUN_BACK;    break;
        case CMSG_FORCE_SWIM_SPEED_CHANGE_ACK:          move_type = MOVE_SWIM;          force_move_type = MOVE_SWIM;        break;
        case CMSG_FORCE_SWIM_BACK_SPEED_CHANGE_ACK:     move_type = MOVE_SWIM_BACK;     force_move_type = MOVE_SWIM_BACK;   break;
        case CMSG_FORCE_TURN_RATE_CHANGE_ACK:           move_type = MOVE_TURN_RATE;     force_move_type = MOVE_TURN_RATE;   break;
        case CMSG_FORCE_FLIGHT_SPEED_CHANGE_ACK:        move_type = MOVE_FLIGHT;        force_move_type = MOVE_FLIGHT;      break;
        case CMSG_FORCE_FLIGHT_BACK_SPEED_CHANGE_ACK:   move_type = MOVE_FLIGHT_BACK;   force_move_type = MOVE_FLIGHT_BACK; break;
        case CMSG_FORCE_PITCH_RATE_CHANGE_ACK:          move_type = MOVE_PITCH_RATE;    force_move_type = MOVE_PITCH_RATE;  break;
        default:
            sLog->outError("WorldSession::HandleForceSpeedChangeAck: Unknown move type opcode: %u", opcode);
            return;
    }

    // skip all forced speed changes except last and unexpected
    // in run/mounted case used one ACK and it must be skipped.m_forced_speed_changes[MOVE_RUN} store both.
    if (_player->m_forced_speed_changes[force_move_type] > 0)
    {
        --_player->m_forced_speed_changes[force_move_type];
        if (_player->m_forced_speed_changes[force_move_type] > 0)
            return;
    }

    if (!_player->GetTransport() && fabs(_player->GetSpeed(move_type) - newspeed) > 0.01f && _player->GetSession()->GetSecurity() == SEC_PLAYER)
    {
        if (_player->GetSpeed(move_type) > newspeed)         // must be greater - just correct
        {
            sLog->outError("%sSpeedChange player %s is NOT correct (must be %f instead %f), force set to correct value",
                move_type_name[move_type], _player->GetName(), _player->GetSpeed(move_type), newspeed);
            _player->SetSpeed(move_type, _player->GetSpeedRate(move_type), true);
        }
        else                                                // must be lesser - cheating
        {
            sLog->outBasic("Player %s from account id %u kicked for incorrect speed (must be %f instead %f)",
                _player->GetName(), _player->GetSession()->GetAccountId(), _player->GetSpeed(move_type), newspeed);
            _player->GetSession()->KickPlayer();
        }
    }
}

void WorldSession::HandleMovementOpcodes(WorldPacket & recv_data)
{
    uint32 opcode = recv_data.GetOpcode();

    Unit* mover = _player->m_mover;

    ASSERT(mover != NULL);                                  // there must always be a mover

    Player* plMover = mover->GetTypeId() == TYPEID_PLAYER ? (Player*)mover : NULL;

    // ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
    if (plMover && plMover->IsBeingTeleported())
    {
        recv_data.rfinish();                   // prevent warnings spam
        return;
    }

    /* extract packet */
    uint64 guid;

    recv_data.readPackGUID(guid);

    MovementInfo movementInfo;
    movementInfo.guid = guid;
    ReadMovementInfo(recv_data, &movementInfo);

    recv_data.rfinish();                   // prevent warnings spam

    // prevent tampered movement data
    if (guid != mover->GetGUID())
        return;

    if (!movementInfo.pos.IsPositionValid())
    {
        recv_data.rfinish();                   // prevent warnings spam
        return;
    }

    /* handle special cases */
    if (movementInfo.flags & MOVEMENTFLAG_ONTRANSPORT)
    {
        // transports size limited
        // (also received at zeppelin leave by some reason with t_* as absolute in continent coordinates, can be safely skipped)
        if (movementInfo.t_pos.GetPositionX() > 50 || movementInfo.t_pos.GetPositionY() > 50 || movementInfo.t_pos.GetPositionZ() > 50)
        {
            recv_data.rfinish();                   // prevent warnings spam
            return;
        }

        if (!Trinity::IsValidMapCoord(movementInfo.pos.GetPositionX() + movementInfo.t_pos.GetPositionX(), movementInfo.pos.GetPositionY() + movementInfo.t_pos.GetPositionY(),
            movementInfo.pos.GetPositionZ() + movementInfo.t_pos.GetPositionZ(), movementInfo.pos.GetOrientation() + movementInfo.t_pos.GetOrientation()))
        {
            recv_data.rfinish();                   // prevent warnings spam
            return;
        }

        // if we boarded a transport, add us to it
        if (plMover && !plMover->GetTransport())
        {
            // elevators also cause the client to send MOVEMENTFLAG_ONTRANSPORT - just unmount if the guid can be found in the transport list
            for (MapManager::TransportSet::const_iterator iter = sMapMgr->m_Transports.begin(); iter != sMapMgr->m_Transports.end(); ++iter)
            {
                if ((*iter)->GetGUID() == movementInfo.t_guid)
                {
                    plMover->m_transport = (*iter);
                    (*iter)->AddPassenger(plMover);
                    break;
                }
            }
        }

        if (!mover->GetTransport() && !mover->GetVehicle())
        {
            GameObject* go = mover->GetMap()->GetGameObject(movementInfo.t_guid);
            if (!go || go->GetGoType() != GAMEOBJECT_TYPE_TRANSPORT)
                movementInfo.flags &= ~MOVEMENTFLAG_ONTRANSPORT;
        }
    }
    else if (plMover && plMover->GetTransport())                // if we were on a transport, leave
    {
        plMover->m_transport->RemovePassenger(plMover);
        plMover->m_transport = NULL;
        movementInfo.t_pos.Relocate(0.0f, 0.0f, 0.0f, 0.0f);
        movementInfo.t_time = 0;
        movementInfo.t_seat = -1;
    }

    // fall damage generation (ignore in flight case that can be triggered also at lags in moment teleportation to another map).
    if (opcode == MSG_MOVE_FALL_LAND && plMover && !plMover->isInFlight())
        plMover->HandleFall(movementInfo);

    if (plMover && ((movementInfo.flags & MOVEMENTFLAG_SWIMMING) != 0) != plMover->IsInWater())
    {
        // now client not include swimming flag in case jumping under water
        plMover->SetInWater(!plMover->IsInWater() || plMover->GetBaseMap()->IsUnderWater(movementInfo.pos.GetPositionX(), movementInfo.pos.GetPositionY(), movementInfo.pos.GetPositionZ()));
    }

    /*----------------------*/

    /* process position-change */
//.........这里部分代码省略.........