/// <summary>
/// Waits for more data to arrive
/// </summary>
/// <param name="pSocketInfo">Info about data to be received</param>
private void WaitForData(SocketInfo pSocketInfo)
{
try {
mSocket.BeginReceive(pSocketInfo.DataBuffer, pSocketInfo.Index, pSocketInfo.DataBuffer.Length - pSocketInfo.Index, SocketFlags.None, new AsyncCallback(OnDataReceived), pSocketInfo);
} catch (Exception se) {
Console.WriteLine("[Error] Session.WaitForData: " + se);
}
}
/// <summary>
/// Waits for more data to arrive
/// </summary>
/// <param name="socketInfo">Info about data to be received</param>
private void WaitForData(SocketInfo socketInfo)
{
try
{
Socket.BeginReceive(socketInfo.DataBuffer,
socketInfo.Index,
socketInfo.DataBuffer.Length - socketInfo.Index,
SocketFlags.None,
OnDataReceived,
socketInfo);
}
catch (Exception se)
{
Log.LogError("Session.WaitForData", se);
}
}
/// <summary>
/// Waits for more data to arrive
/// </summary>
/// <param name="socketInfo">Info about data to be received</param>
private void WaitForData(SocketInfo socketInfo)
{
try
{
_socket.BeginReceive(socketInfo.DataBuffer,
socketInfo.Index,
socketInfo.DataBuffer.Length - socketInfo.Index,
SocketFlags.None,
new AsyncCallback(OnDataReceived),
socketInfo);
}
catch (Exception se)
{
Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.WaitForData: " + se);
//Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.WaitForData: " + se);
}
}
private void OnDataReceived(IAsyncResult iar)
{
SocketInfo socketInfo = (SocketInfo)iar.AsyncState;
try
{
int received = socketInfo.Socket.EndReceive(iar);
if (received == 0)
{
if (OnClientDisconnected != null)
{
OnClientDisconnected(this);
}
return;
}
socketInfo.Index += received;
byte[] dataa = new byte[received];
Buffer.BlockCopy(socketInfo.DataBuffer, 0, dataa, 0, received);
if (OnPacketReceived != null)
{
OnPacketReceived.Invoke(new PacketReader(dataa));
}
//Console.WriteLine(BitConverter.ToString(dataa));
//Console.WriteLine(HexEncoding.ToStringFromAscii(dataa));
WaitForData();
/*if (socketInfo.Index == socketInfo.DataBuffer.Length) {
* switch (socketInfo.State) {
* case SocketInfo.StateEnum.Header:
* PacketReader headerReader = new PacketReader(socketInfo.DataBuffer);
* byte[] packetHeaderB = headerReader.ToArray();
* int packetHeader = headerReader.ReadInt();
* short packetLength = (short)MapleCrypto.getPacketLength(packetHeader);
* if (!_RIV.checkPacket(packetHeader)) {
* Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Packet check failed. Disconnecting client.");
* this.Socket.Close();
* }
* socketInfo.State = SocketInfo.StateEnum.Content;
* socketInfo.DataBuffer = new byte[packetLength];
* socketInfo.Index = 0;
* WaitForData(socketInfo);
* break;
* case SocketInfo.StateEnum.Content:
* byte[] data = socketInfo.DataBuffer;
*
* _RIV.crypt(data);
* MapleCustomEncryption.Decrypt(data);
*
* if (data.Length != 0 && OnPacketReceived != null) {
* OnPacketReceived(new PacketReader(data));
* }
* WaitForData();
* break;
* }
* } else {
* Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Warning] Not enough data");
* WaitForData(socketInfo);
* }*/
}
catch (ObjectDisposedException)
{
Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.OnDataReceived: Socket has been closed");
//Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.OnDataReceived: Socket has been closed");
}
catch (SocketException se)
{
if (se.ErrorCode != 10054)
{
Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.OnDataReceived: " + se);
//Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.OnDataReceived: " + se);
}
}
catch (Exception e)
{
Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.OnDataReceived: " + e);
//Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.OnDataReceived: " + e);
}
}
/// <summary>
/// Waits for more data to arrive
/// </summary>
/// <param name="socketInfo">Info about data to be received</param>
private void WaitForData(SocketInfo socketInfo)
{
try
{
_socket.BeginReceive(socketInfo.DataBuffer,
socketInfo.Index,
socketInfo.DataBuffer.Length - socketInfo.Index,
SocketFlags.None,
new AsyncCallback(OnDataReceived),
socketInfo);
}
catch (Exception se)
{
Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.WaitForData: " + se);
//Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.WaitForData: " + se);
}
}
/// <summary>
/// Data received event handler
/// </summary>
/// <param name="iar">IAsyncResult of the data received event</param>
private void OnDataReceived(IAsyncResult iar)
{
SocketInfo socketInfo = (SocketInfo)iar.AsyncState;
try
{
int received = socketInfo.Socket.EndReceive(iar);
if (received == 0)
{
if (OnClientDisconnected != null)
{
OnClientDisconnected(this);
}
return;
}
socketInfo.Index += received;
if (socketInfo.Index == socketInfo.DataBuffer.Length)
{
switch (socketInfo.State)
{
case SocketInfo.StateEnum.Header:
if (socketInfo.NoEncryption)
{
PacketReader headerReader = new PacketReader(socketInfo.DataBuffer);
short packetHeader = headerReader.ReadShort();
socketInfo.State = SocketInfo.StateEnum.Content;
socketInfo.DataBuffer = new byte[packetHeader];
socketInfo.Index = 0;
WaitForData(socketInfo);
}
else
{
PacketReader headerReader = new PacketReader(socketInfo.DataBuffer);
byte[] packetHeaderB = headerReader.ToArray();
int packetHeader = headerReader.ReadInt();
short packetLength = (short)MapleCrypto.getPacketLength(packetHeader);
if (_type == SessionType.SERVER_TO_CLIENT && !_RIV.checkPacketToServer(BitConverter.GetBytes(packetHeader)))
{
Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Packet check failed. Disconnecting client.");
//this.Socket.Close();
}
socketInfo.State = SocketInfo.StateEnum.Content;
socketInfo.DataBuffer = new byte[packetLength];
socketInfo.Index = 0;
WaitForData(socketInfo);
}
break;
case SocketInfo.StateEnum.Content:
byte[] data = socketInfo.DataBuffer;
if (socketInfo.NoEncryption)
{
socketInfo.NoEncryption = false;
PacketReader reader = new PacketReader(data);
short version = reader.ReadShort();
string unknown = reader.ReadMapleString();
_SIV = new MapleCrypto(reader.ReadBytes(4), version);
_RIV = new MapleCrypto(reader.ReadBytes(4), version);
byte serverType = reader.ReadByte();
if (_type == SessionType.CLIENT_TO_SERVER)
{
OnInitPacketReceived(version, serverType);
}
OnPacketReceived(new PacketReader(data), true);
WaitForData();
}
else
{
_RIV.crypt(data);
MapleCustomEncryption.Decrypt(data);
if (data.Length != 0 && OnPacketReceived != null)
{
OnPacketReceived(new PacketReader(data), false);
}
WaitForData();
}
break;
}
}
else
{
Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Warning] Not enough data");
WaitForData(socketInfo);
}
}
catch (ObjectDisposedException)
{
Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.OnDataReceived: Socket has been closed");
}
catch (SocketException se)
{
if (se.ErrorCode != 10054)
{
Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.OnDataReceived: " + se);
}
}
catch (Exception e)
{
Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.OnDataReceived: " + e);
}
}
