public static ERequestResult HandleRequest(CGameStateController gs, CPlayer player)
{
if (gs.PlayerState[player] != EPlayerState.UNITIALIZED)
{
return(ERequestResult.PLAYER_INCONSISTENT_STATE);
}
MAccountLoginPacket packet = MyMarshal.GetStructure <MAccountLoginPacket>(player.RecvPacket);
MAccountFile?nAccFile;
AccountCRUD.EErrorMsg accErr = AccountCRUD.TryRead(packet.AccName, out nAccFile);
if (accErr == AccountCRUD.EErrorMsg.NO_ERROR)
{
MLoginSuccessfulPacket answer =
PacketHelper.GetEmptyValid <MLoginSuccessfulPacket>(MLoginSuccessfulPacket.Opcode);
MAccountFile accFile = nAccFile.Value;
answer.AccName = accFile.Info.LoginInfo.AccName;
answer.Cargo = accFile.Cargo;
answer.CargoCoin = accFile.CargoCoin;
for (int i = 0; i < GameBasics.MAXL_ACC_MOB; i++)
{
unsafe
{
answer.SelChar.Coin[i] = accFile.MobCore[i].Coin;
answer.SelChar.Equip[i] = accFile.MobCore[i].Equip;
answer.SelChar.Exp[i] = accFile.MobCore[i].Exp;
answer.SelChar.Guild[i] = accFile.MobCore[i].Guild;
answer.SelChar.Name[i] = accFile.MobCore[i].Name;
answer.SelChar.Score[i] = accFile.MobCore[i].BaseScore;
answer.SelChar.SPosX[i] = accFile.MobCore[i].StellarGemPosition.X;
answer.SelChar.SPosY[i] = accFile.MobCore[i].StellarGemPosition.Y;
}
}
player.SendPacket(MyMarshal.GetBytes(answer));
}
else if (accErr == AccountCRUD.EErrorMsg.ACC_NOT_FOUND)
{
MTextMessagePacket answer =
PacketHelper.GetEmptyValid <MTextMessagePacket>(MTextMessagePacket.Opcode);
answer.Message = "Esta conta não foi encontrada.";
player.SendPacket(MyMarshal.GetBytes(answer));
}
else
{
return(ERequestResult.UNKNOWN);
}
return(ERequestResult.NO_ERROR);
}
/// <summary>
/// Process the newly connected client.
/// </summary>
/// <param name="client">The newly connected client.</param>
private async void ProcessClient_Channel1(TcpClient client)
{
using (client)
using (NetworkStream stream = client.GetStream())
{
pServer GameServer = new pServer(stream);
CCompoundBuffer packet = GameServer.RecvPacket;
try
{
// Iterate processing incoming GameServer packets until he disconnects.
while (GameServer.State != EServerStatus.CLOSED)
{
int readCount = 0;
try
{
readCount = await stream.ReadAsync(packet.RawBuffer, 0, BaseDef.MAXL_PACKET);
}
catch (Exception e)
{
break;
}
if (readCount != 4 && (readCount < 12 || readCount > BaseDef.MAXL_PACKET)) // Invalid game packet.
{
// gameController.DisconnectPlayer(GameServer);
break;
}
else // Possible valid game packet chunk.
{
unsafe
{
packet.Offset = 0;
fixed(byte *PinnedPacketChunk = &packet.RawBuffer[packet.Offset])
{
// Check for the init code.
if (*(uint *)&PinnedPacketChunk[packet.Offset] == BaseDef.INIT_CODE)
{
packet.Offset = 4;
// If a valid index can't be assigned to the GameServer, disconnect him
if (!gameController.TryInsertPlayer(GameServer))
{
GameServer.SendPacket(MTextMessagePacket.Create("O servidor está lotado. Tente novamente mais tarde."));
// gameController.DisconnectPlayer(GameServer);
continue;
}
// If all the received chunk resumes to the INIT_CODE, read the next packet.
if (readCount == 4)
{
continue;
}
}
// Process all possible packets that were possibly sent together.
while (packet.Offset < readCount && GameServer.State != EServerStatus.CLOSED)
{
// Check if the game packet size is bigger than the remaining received chunk.
if (packet.ReadNextUShort(0) > readCount - packet.Offset || packet.ReadNextUShort(0) < 12)
{
throw new Exception("Pacote recebido inválido.O pacote de leitura é maior que o restante do pacote.");
//continue;
}
// Tries to decrypt the packet.
if (!PacketSecurity.Decrypt(packet))
{
throw new Exception($"Não é possível descriptografar um pacote recebido de {client.Client.RemoteEndPoint}.");
}
// W2Log.Write(String.Format("Em processamento recv packet {{0x{0:X}/{1}}} a partir de {2}.", packet.ReadNextUShort(4), packet.ReadNextUShort(0), client.Client.RemoteEndPoint), ELogType.NETWORK);
// Process the incoming packet.
DBResult requestResult = gameController.ProcessPlayerRequest(GameServer);
// Treat the processing packet return.
switch (requestResult)
{
//case DBResult.PACKET_NOT_HANDLED:
//{
// W2Log.Write(String.Format("Recv packet {{0x{0:X}/{1}}} de {2} não foi processado.",
// packet.ReadNextUShort(4), packet.ReadNextUShort(0), client.Client.RemoteEndPoint), ELogType.NETWORK);
// byte[] rawPacket = new byte[packet.ReadNextUShort(0)];
// for (int i = 0; i < rawPacket.Length; i++)
// rawPacket[i] = PinnedPacketChunk[i + packet.Offset];
// File.WriteAllBytes($@"..\..\{packet.ReadNextUShort(4)}.bin",
// rawPacket);
// break;
//}
case DBResult.CHECKSUM_FAIL:
{
W2Log.Write($"Recibo de pacote de { client.Client.RemoteEndPoint} tem soma de verificação inválida.", ELogType.CRITICAL_ERROR);
//gameController.DisconnectPlayer(GameServer);
break;
}
case DBResult.PLAYER_INCONSISTENT_STATE:
{
W2Log.Write($"Um GameServer foi desconectado devido ao DBResult inconsistente.", ELogType.CRITICAL_ERROR);
//gameController.DisconnectPlayer(GameServer);
break;
}
case DBResult.WAIT:
{
break;
}
}
// Correct the offset to process the next packet in the received chunk.
PlayersCount.Text = gameController.PlayerCount.ToString();
GameServer.RecvPacket.Offset += packet.ReadNextUShort(0);
}
}
}
}
}
}
catch (Exception ex)
{
W2Log.Write($"Uma exceção não tratada aconteceu processando o GameServer {GameServer.Index}. MSG: {ex.Message}", ELogType.CRITICAL_ERROR);
}
finally
{
// gameController.DisconnectPlayer(GameServer);
}
}
}
/// <summary>
/// Process the newly connected client.
/// </summary>
/// <param name="client">The newly connected client.</param>
private async void ProcessClient_Channel1(TcpClient client)
{
using (client)
using (NetworkStream stream = client.GetStream())
{
CPlayer player = new CPlayer(stream);
CCompoundBuffer packet = player.RecvPacket;
try
{
// Iterate processing incoming player packets until he disconnects.
while (player.State != EPlayerState.CLOSED)
{
int readCount = await stream.ReadAsync(packet.RawBuffer, 0, NetworkBasics.MAXL_PACKET);
if (readCount != 4 && (readCount < 12 || readCount > NetworkBasics.MAXL_PACKET)) // Invalid game packet.
{
gameController.DisconnectPlayer(player);
break;
}
else // Possible valid game packet chunk.
{
unsafe
{
packet.Offset = 0;
fixed(byte *PinnedPacketChunk = &packet.RawBuffer[packet.Offset])
{
// Check for the init code.
if (*(uint *)&PinnedPacketChunk[packet.Offset] == NetworkBasics.INIT_CODE)
{
packet.Offset = 4;
// If a valid index can't be assigned to the player, disconnect him
if (!gameController.TryInsertPlayer(player))
{
player.SendPacket(MTextMessagePacket.Create("O servidor está lotado. Tente novamente mais tarde."));
gameController.DisconnectPlayer(player);
continue;
}
// If all the received chunk resumes to the INIT_CODE, read the next packet.
if (readCount == 4)
{
continue;
}
}
// Process all possible packets that were possibly sent together.
while (packet.Offset < readCount && player.State != EPlayerState.CLOSED)
{
// Check if the game packet size is bigger than the remaining received chunk.
if (packet.ReadNextUShort(0) > readCount - packet.Offset || packet.ReadNextUShort(0) < 12)
{
throw new Exception("Invalid received packet. Reading packet is bigger than the remaining chunk.");
}
// Tries to decrypt the packet.
if (!PacketSecurity.Decrypt(packet))
{
throw new Exception($"Can't decrypt a packet received from {client.Client.RemoteEndPoint}.");
}
W2Log.Write(String.Format("Processing recv packet {{0x{0:X}/{1}}} from {2}.",
packet.ReadNextUShort(4), packet.ReadNextUShort(0), client.Client.RemoteEndPoint), ELogType.NETWORK);
// Process the incoming packet.
EPlayerRequestResult requestResult = gameController.ProcessPlayerRequest(player);
// Treat the processing packet return.
switch (requestResult)
{
case EPlayerRequestResult.PACKET_NOT_HANDLED:
{
W2Log.Write(String.Format("Recv packet {{0x{0:X}/{1}}} from {2} didn't was processed.",
packet.ReadNextUShort(4), packet.ReadNextUShort(0), client.Client.RemoteEndPoint), ELogType.NETWORK);
byte[] rawPacket = new byte[packet.ReadNextUShort(0)];
for (int i = 0; i < rawPacket.Length; i++)
{
rawPacket[i] = PinnedPacketChunk[i + packet.Offset];
}
File.WriteAllBytes($@"..\..\Dumped Packets\Inner Packets\{packet.ReadNextUShort(4)}.bin",
rawPacket);
break;
}
case EPlayerRequestResult.CHECKSUM_FAIL:
{
W2Log.Write($"Recv packet from {client.Client.RemoteEndPoint} have invalid checksum.", ELogType.CRITICAL_ERROR);
gameController.DisconnectPlayer(player);
break;
}
case EPlayerRequestResult.PLAYER_INCONSISTENT_STATE:
{
W2Log.Write($"A player was disconnected due to inconsistent PlayerState.", ELogType.CRITICAL_ERROR);
gameController.DisconnectPlayer(player);
break;
}
}
// Correct the offset to process the next packet in the received chunk.
player.RecvPacket.Offset += packet.ReadNextUShort(0);
}
}
}
}
}
}
catch (Exception ex)
{
W2Log.Write($"An unhandled exception happened processing the player {player.Index}. MSG: {ex.Message}", ELogType.CRITICAL_ERROR);
}
finally
{
gameController.DisconnectPlayer(player);
}
}
}
private EPlayerRequestResult CGameStateController_OnProcessPacket(CGameStateController gs, CPlayer player)
{
switch (player.RecvPacket.ReadNextUShort(4))
{
case MAccountLoginPacket.Opcode:
{
if (player.State != EPlayerState.WAITING_TO_LOGIN)
{
return(EPlayerRequestResult.PLAYER_INCONSISTENT_STATE);
}
MAccountLoginPacket packet = W2Marshal.GetStructure <MAccountLoginPacket>(player.RecvPacket);
MAccountFile? nAccFile;
AccountCRUD.EResult accErr = AccountCRUD.TryRead(packet.AccName, out nAccFile);
if (accErr != AccountCRUD.EResult.NO_ERROR)
{
// if account doesn't exist...
if (accErr == AccountCRUD.EResult.ACC_NOT_FOUND)
{
// create a new account file
MAccountFile newAccFile = W2Marshal.CreateEmpty <MAccountFile>();
// set the username & password
newAccFile.Info.LoginInfo.AccName = packet.AccName;
newAccFile.Info.LoginInfo.Password = packet.Password;
AccountCRUD.EResult createAccErr = AccountCRUD.TrySaveAccount(ref newAccFile);
if (createAccErr == AccountCRUD.EResult.NO_ERROR)
{
accErr = AccountCRUD.TryRead(packet.AccName, out nAccFile);
if (accErr != AccountCRUD.EResult.NO_ERROR)
{
return(EPlayerRequestResult.UNKNOWN);
}
}
else if (createAccErr == AccountCRUD.EResult.ACC_NOT_SAVED)
{
MTextMessagePacket createFailedAnswer =
W2Marshal.GetEmptyValid <MTextMessagePacket>(MTextMessagePacket.Opcode);
createFailedAnswer.Message = "Não foi possível criar a conta.";
player.SendPacket(createFailedAnswer);
return(EPlayerRequestResult.NO_ERROR);
}
else if (createAccErr == AccountCRUD.EResult.UNKNOWN)
{
return(EPlayerRequestResult.UNKNOWN);
}
}
else
{
return(EPlayerRequestResult.UNKNOWN);
}
}
MLoginSuccessfulPacket answer =
W2Marshal.GetEmptyValid <MLoginSuccessfulPacket>(MLoginSuccessfulPacket.Opcode);
MAccountFile accFile = nAccFile.Value;
answer.AccName = accFile.Info.LoginInfo.AccName;
answer.Cargo = accFile.Cargo;
answer.CargoCoin = accFile.CargoCoin;
for (int i = 0; i < GameBasics.MAXL_ACC_MOB; i++)
{
unsafe
{
answer.SelChar.Coin[i] = accFile.MobCore[i].Coin;
answer.SelChar.Equip[i] = accFile.MobCore[i].Equip;
answer.SelChar.Exp[i] = accFile.MobCore[i].Exp;
answer.SelChar.Guild[i] = accFile.MobCore[i].Guild;
answer.SelChar.Name[i] = accFile.MobCore[i].Name;
answer.SelChar.Score[i] = accFile.MobCore[i].BaseScore;
answer.SelChar.SPosX[i] = accFile.MobCore[i].StellarGemPosition.X;
answer.SelChar.SPosY[i] = accFile.MobCore[i].StellarGemPosition.Y;
}
}
player.SendPacket(answer);
player.State = EPlayerState.SEL_CHAR;
return(EPlayerRequestResult.NO_ERROR);
}
default: return(EPlayerRequestResult.PACKET_NOT_HANDLED);
}
}
private EPlayerRequestResult CGameStateController_OnProcessPacket(CGameStateController gs, CPlayer player)
{
switch (player.RecvPacket.ReadNextUShort(4))
{
case MAccountLoginPacket.Opcode:
{
if (player.State != EPlayerState.WAITING_TO_LOGIN)
{
return(EPlayerRequestResult.PLAYER_INCONSISTENT_STATE);
}
MAccountLoginPacket packet = W2Marshal.GetStructure <MAccountLoginPacket>(player.RecvPacket);
MAccountFile? nAccFile;
AccountCRUD.EResult accErr = AccountCRUD.TryRead(packet.AccName, out nAccFile);
if (accErr == AccountCRUD.EResult.NO_ERROR)
{
MLoginSuccessfulPacket answer =
W2Marshal.GetEmptyValid <MLoginSuccessfulPacket>(MLoginSuccessfulPacket.Opcode);
MAccountFile accFile = nAccFile.Value;
answer.AccName = accFile.Info.LoginInfo.AccName;
answer.Cargo = accFile.Cargo;
answer.CargoCoin = accFile.CargoCoin;
for (int i = 0; i < GameBasics.MAXL_ACC_MOB; i++)
{
unsafe
{
answer.SelChar.Coin[i] = accFile.MobCore[i].Coin;
answer.SelChar.Equip[i] = accFile.MobCore[i].Equip;
answer.SelChar.Exp[i] = accFile.MobCore[i].Exp;
answer.SelChar.Guild[i] = accFile.MobCore[i].Guild;
answer.SelChar.Name[i] = accFile.MobCore[i].Name;
answer.SelChar.Score[i] = accFile.MobCore[i].BaseScore;
answer.SelChar.SPosX[i] = accFile.MobCore[i].StellarGemPosition.X;
answer.SelChar.SPosY[i] = accFile.MobCore[i].StellarGemPosition.Y;
}
}
player.SendPacket(answer);
player.State = EPlayerState.SEL_CHAR;
}
else if (accErr == AccountCRUD.EResult.ACC_NOT_FOUND)
{
MTextMessagePacket answer =
W2Marshal.GetEmptyValid <MTextMessagePacket>(MTextMessagePacket.Opcode);
answer.Message = "Esta conta não foi encontrada.";
player.SendPacket(answer);
}
else
{
return(EPlayerRequestResult.UNKNOWN);
}
return(EPlayerRequestResult.NO_ERROR);
}
default: return(EPlayerRequestResult.PACKET_NOT_HANDLED);
}
}