private int HandlePerformanceCounter(ConnInfo Conn, List <byte> buf)
{
TGSPerformanceCounter packet = new TGSPerformanceCounter();
int pos = Marshal.SizeOf(packet);
packet = (TGSPerformanceCounter)D2DBS.core.BytesToStruct(buf.ToArray(), Marshal.SizeOf(packet), packet.GetType());
D2DBS.mysql.Execute("INSERT DELAYED INTO performance (`date`,`gs_addr`,`busy_pool`, `idle_pool`, `thread_num`, `handle_num`, `ge_num`) VALUES (UNIX_TIMESTAMP(), '" + Conn.RemoteAddr + "','" + packet.BusyPool.ToString() + "','" + packet.IdlePool.ToString() + "','" + packet.ThreadNum.ToString() + "','" + packet.HandleNum.ToString() + "','" + packet.GENum.ToString() + "')");
return(0);
}
private int HandleSaveCharSave(ConnInfo Conn, List <byte> buf)
{
TGSSaveCharSaveRequest packet = new TGSSaveCharSaveRequest();
int pos = Marshal.SizeOf(packet);
packet = (TGSSaveCharSaveRequest)D2DBS.core.BytesToStruct(buf.ToArray(), Marshal.SizeOf(packet), packet.GetType());
string[] Names = BytesToString(buf.GetRange(pos, buf.Count - pos - packet.datalen)).Split('\0');
string AccountName = Names[0];
string CharName = Names[1];
string GameName = Names[2];
string IPAddr = Names[3];
string ItemLog = Names[4];
string CharVersion = D2DBS.config["char_version"];
byte result = 1;
byte[] data = buf.GetRange(buf.Count - packet.datalen, packet.datalen).ToArray();
if (data[0] != 0x55 || data[1] != 0xAA)
{
D2DBS.log.Write("error", "Invaild charsave `" + CharName + "`(*" + AccountName + ")@" + GameName + " for gs " + Conn.GSId.ToString());
}
else
{
if (D2DBS.charfile.SetCharSave(AccountName, CharName, data) == true)
{
D2DBS.mysql.Execute("UPDATE LOW_PRIORITY charstat SET `ist` = '" + packet.ist.ToString() + "' WHERE version = '" + CharVersion + "' AND charname = '" + CharName + "'");
if (ItemLog.Length > 0)
{
D2DBS.mysql.Execute("INSERT DELAYED INTO itemrecord (`date`,`version`,`game`,`charname`,`accname`,`ipaddr`,`itemchange`,`istchange`) VALUES (UNIX_TIMESTAMP(), '" + CharVersion + "', '" + D2DBS.mysql.Escape(GameName) + "', '" + CharName + "', '" + AccountName + "', '" + IPAddr + "', '" + D2DBS.mysql.Escape(ItemLog) + "','" + packet.changedist.ToString() + "')");
}
result = 0;
D2DBS.log.Write("info", "Saved charsave `" + CharName + "`(*" + AccountName + ") for gs " + Conn.GSId.ToString());
}
else
{
D2DBS.log.Write("info", "Failed to saved charsave `" + CharName + "`(*" + AccountName + ") for gs " + Conn.GSId.ToString());
}
}
TDBSSaveDataReply rpacket = new TDBSSaveDataReply();
byte[] rawcharname = StringToChars(CharName);
rpacket.h.seqno = packet.h.seqno;
rpacket.h.type = (byte)EPacketType.DBSSaveDataReply;
rpacket.h.size = (short)(Marshal.SizeOf(rpacket) + rawcharname.Length);
rpacket.datatype = 1;
rpacket.result = result;
lock (Conn.StreamLocker)
{
Conn.NetWriter.Write(D2DBS.core.StructToBytes(rpacket));
Conn.NetWriter.Write(rawcharname);
Conn.NetWriter.Flush();
}
return(0);
}
private int HandleEmergency(ConnInfo Conn, List <byte> buf)
{
TGSEmergency packet = new TGSEmergency();
int pos = Marshal.SizeOf(packet);
packet = (TGSEmergency)D2DBS.core.BytesToStruct(buf.ToArray(), Marshal.SizeOf(packet), packet.GetType());
D2DBS.mysql.Execute("INSERT DELAYED INTO emergency (`date`,`gs_addr`,`type`, `param`) VALUES (UNIX_TIMESTAMP(), '" + Conn.RemoteAddr + "','" + packet.EmergencyType.ToString() + "','" + packet.Param.ToString() + "')");
return(0);
}
private int HandleRateExceeded(ConnInfo Conn, List <byte> buf)
{
TGSRateExceeded packet = new TGSRateExceeded();
int pos = Marshal.SizeOf(packet);
string[] Names = BytesToString(buf.GetRange(pos, buf.Count - pos)).Split('\0');
packet = (TGSRateExceeded)D2DBS.core.BytesToStruct(buf.ToArray(), Marshal.SizeOf(packet), packet.GetType());
D2DBS.mysql.Execute("INSERT DELAYED INTO rate_exceeded (`date`,`gs_addr`,`charname`, `accname`, `ipaddr`, `rate`) VALUES (UNIX_TIMESTAMP(), '" + Conn.RemoteAddr + "','" + Names[0] + "','" + Names[1] + "','" + Names[2] + "','" + packet.RequestRate.ToString() + "')");
return(0);
}
public int HandlePacket(ConnInfo Conn, List <byte> buf)
{
THeader h = new THeader();
if (buf.Count < Marshal.SizeOf(h))
{
return(-1);
}
h = (THeader)D2DBS.core.BytesToStruct(buf.ToArray(), Marshal.SizeOf(h), h.GetType());
if (buf.Count != h.size)
{
return(-1);
}
switch ((EPacketType)h.type)
{
case EPacketType.GSGetDataRequest:
return(HandleGetDataRequest(Conn, buf));
case EPacketType.GSCloseSignal:
return(HandleCloseSignal(Conn, buf));
case EPacketType.GSCharLock:
return(HandleCharLock(Conn, buf));
case EPacketType.GSKickReply:
return(HandleKickReply(Conn, buf));
case EPacketType.GSSaveCharInfoRequest:
return(HandleSaveCharInfo(Conn, buf));
case EPacketType.GSSaveCharSaveRequest:
return(HandleSaveCharSave(Conn, buf));
case EPacketType.GSUpdateLadder:
return(HandleUpdateLadder(Conn, buf));
case EPacketType.GSPerformanceCounter:
return(HandlePerformanceCounter(Conn, buf));
case EPacketType.GSRateExceeded:
return(HandleRateExceeded(Conn, buf));
case EPacketType.GSEmergency:
return(HandleEmergency(Conn, buf));
case EPacketType.GSSOJCounterUpdate:
return(HandleSOJCounterUpdate(Conn, buf));
case EPacketType.GSEchoReply:
return(0);
default:
return(-1);
}
}
public int DBSHandlePacket(ConnInfo Conn, List<byte> buf)
{
try
{
return D2DBS.packet.HandlePacket(Conn, buf);
}
catch (Exception e)
{
D2DBS.log.Write("error", "Error occured while handling packet: " + e.ToString());
return -1;
}
}
public int DBSHandlePacket(ConnInfo Conn, List <byte> buf)
{
try
{
return(D2DBS.packet.HandlePacket(Conn, buf));
}
catch (Exception e)
{
D2DBS.log.Write("error", "Error occured while handling packet: " + e.ToString());
return(-1);
}
}
private int HandleUpdateLadder(ConnInfo Conn, List <byte> buf)
{
TGSUpdateLadder packet = new TGSUpdateLadder();
int pos = Marshal.SizeOf(packet);
packet = (TGSUpdateLadder)D2DBS.core.BytesToStruct(buf.ToArray(), Marshal.SizeOf(packet), packet.GetType());
string[] Names = BytesToString(buf.GetRange(pos, buf.Count - pos)).Split('\0');
string CharName = Names[0];
D2DBS.ladder.UpdateLadder(packet.charexplow, packet.charstatus, packet.charlevel, packet.charclass, CharName);
D2DBS.log.Write("info", "Ladder of `" + CharName + "`(L=" + packet.charlevel.ToString() + ",C=" + packet.charclass.ToString() + ",S=" + packet.charstatus.ToString() + ") updated for gs " + Conn.GSId.ToString());
return(0);
}
private int HandleKickReply(ConnInfo Conn, List <byte> buf)
{
TGSKickReply packet = new TGSKickReply();
int pos = Marshal.SizeOf(packet);
packet = (TGSKickReply)D2DBS.core.BytesToStruct(buf.ToArray(), Marshal.SizeOf(packet), packet.GetType());
string[] Names = BytesToString(buf.GetRange(pos, buf.Count - pos)).Split('\0');
string CharName = Names[0];
if (packet.result == 1)
{
D2DBS.charlock.UnlockChar(CharName);
D2DBS.log.Write("info", "Char `" + CharName + "` kicked from gs " + Conn.GSId.ToString());
}
return(0);
}
private int HandleCharLock(ConnInfo Conn, List <byte> buf)
{
TGSCharLock packet = new TGSCharLock();
int pos = Marshal.SizeOf(packet);
packet = (TGSCharLock)D2DBS.core.BytesToStruct(buf.ToArray(), Marshal.SizeOf(packet), packet.GetType());
string[] Names = BytesToString(buf.GetRange(pos, buf.Count - pos)).Split('\0');
string CharName = Names[0];
D2DBS.log.Write("info", "Charlock `" + CharName + "` set to " + packet.lockstatus.ToString() + " for gs " + Conn.GSId);
if (packet.lockstatus == 0)
{
D2DBS.charlock.UnlockChar(CharName);
}
else
{
D2DBS.charlock.SetCharLock(CharName, Conn.GSId);
}
return(0);
}
public void KickPlayer(ConnInfo Conn, string CharName)
{
if (Conn.Disposed)
{
return;
}
D2DBS.log.Write("info", "Kicking `" + CharName + "`");
TDBSKickRequest kpacket = new TDBSKickRequest();
byte[] RAWCharName = StringToChars(CharName);
kpacket.h.seqno = 0;
kpacket.h.type = (byte)EPacketType.DBSKickRequest;
kpacket.h.size = (short)(Marshal.SizeOf(kpacket.GetType()) + RAWCharName.Length);
lock (Conn.StreamLocker)
{
Conn.NetWriter.Write(D2DBS.core.StructToBytes(kpacket));
Conn.NetWriter.Write(RAWCharName);
Conn.NetWriter.Flush();
}
}
private int HandleSaveCharInfo(ConnInfo Conn, List <byte> buf)
{
TGSSaveCharInfoRequest packet = new TGSSaveCharInfoRequest();
int pos = Marshal.SizeOf(packet);
packet = (TGSSaveCharInfoRequest)D2DBS.core.BytesToStruct(buf.ToArray(), Marshal.SizeOf(packet), packet.GetType());
string[] Names = BytesToString(buf.GetRange(pos, buf.Count - pos - packet.datalen - 1)).Split('\0');
string AccountName = Names[0];
string CharName = Names[1];
string CharVersion = D2DBS.config["char_version"];
byte[] data = buf.GetRange(buf.Count - packet.datalen, packet.datalen).ToArray();
TCharInfo CharInfo = (TCharInfo)D2DBS.core.BytesToStruct(data, typeof(TCharInfo));
TDBSSaveDataReply rpacket = new TDBSSaveDataReply();
byte[] rawcharname = StringToChars(CharName);
rpacket.h.seqno = packet.h.seqno;
rpacket.h.type = (byte)EPacketType.DBSSaveDataReply;
rpacket.h.size = (short)(Marshal.SizeOf(rpacket) + rawcharname.Length);
rpacket.datatype = 2;
if (D2DBS.charfile.SetCharInfo(AccountName, CharName, CharInfo) == true)
{
D2DBS.mysql.Execute("INSERT DELAYED INTO `charstat` (`version`, `charname`, `accname`, `charclass`, `level`, `ist`, `lastupdate`) SELECT '" + CharVersion + "', '" + CharName + "', '" + AccountName + "', '" + CharInfo.summary.charclass.ToString() + "', '" + CharInfo.summary.charlevel.ToString() + "', '0', UNIX_TIMESTAMP() FROM `charstat` WHERE NOT EXISTS (SELECT `charname` FROM `charstat` WHERE `version` = '" + CharVersion + "' `charname` = '" + CharName + "') LIMIT 1");
D2DBS.mysql.Execute("UPDATE LOW_PRIORITY `charstat` SET `accname` = '" + AccountName + "', `charclass` = '" + CharInfo.summary.charclass.ToString() + "', `level` = '" + CharInfo.summary.charlevel.ToString() + "', `lastupdate` = UNIX_TIMESTAMP() WHERE version = '" + CharVersion + "' AND charname = '" + CharName + "'");
rpacket.result = 0;
D2DBS.log.Write("info", "Saved charinfo `" + CharName + "`(*" + AccountName + ") for gs " + Conn.GSId.ToString());
}
else
{
rpacket.result = 1;
D2DBS.log.Write("info", "Failed to saved charinfo `" + CharName + "`(*" + AccountName + ") for gs " + Conn.GSId.ToString());
}
lock (Conn.StreamLocker)
{
Conn.NetWriter.Write(D2DBS.core.StructToBytes(rpacket));
Conn.NetWriter.Write(rawcharname);
Conn.NetWriter.Flush();
}
return(0);
}
private int HandleCloseSignal(ConnInfo Conn, List <byte> buf)
{
TGSCloseSignal packet = new TGSCloseSignal();
int pos = Marshal.SizeOf(packet);
packet = (TGSCloseSignal)D2DBS.core.BytesToStruct(buf.ToArray(), Marshal.SizeOf(packet), packet.GetType());
string[] Names = BytesToString(buf.GetRange(pos, buf.Count - pos)).Split('\0');
string GameName = Names[0];
string CharVersion = D2DBS.config["char_version"];
if (packet.ifclose == 0)
{
D2DBS.mysql.Execute("INSERT DELAYED INTO game (`version`, `name`,`startdate`,`enddate`) VALUES ('" + CharVersion + "', '" + D2DBS.mysql.Escape(GameName) + "', UNIX_TIMESTAMP(), '0')");
D2DBS.log.Write("info", "Game `" + GameName + "` closed on gs " + Conn.GSId.ToString());
}
else
{
D2DBS.mysql.Execute("UPDATE LOW_PRIORITY `game` SET `enddate` = UNIX_TIMESTAMP() WHERE `version` = '" + CharVersion + " AND `name` = '" + D2DBS.mysql.Escape(GameName) + "' ORDER BY startdate DESC LIMIT 1");
D2DBS.log.Write("info", "Game `" + GameName + "` started on gs " + Conn.GSId.ToString());
}
return(0);
}
private int HandleSOJCounterUpdate(ConnInfo Conn, List <byte> buf)
{
TGSSOJCounterUpdate packet = new TGSSOJCounterUpdate();
int pos = Marshal.SizeOf(packet);
string[] Names = BytesToString(buf.GetRange(pos, buf.Count - pos)).Split('\0');
packet = (TGSSOJCounterUpdate)D2DBS.core.BytesToStruct(buf.ToArray(), Marshal.SizeOf(packet), packet.GetType());
D2DBS.diabloClone.Increment(packet.increment, Names[0]);
TDBSSOJCounterUpdate rpacket = new TDBSSOJCounterUpdate();
rpacket.h.seqno = packet.h.seqno;
rpacket.h.type = (byte)EPacketType.DBSSOJCounterUpdate;
rpacket.h.size = (short)(Marshal.SizeOf(rpacket));
rpacket.soj_counter = D2DBS.diabloClone.Get();
lock (Conn.StreamLocker)
{
Conn.NetWriter.Write(D2DBS.core.StructToBytes(rpacket));
Conn.NetWriter.Flush();
}
return(0);
}
private int HandleGetDataRequest(ConnInfo Conn, List <byte> buf)
{
TGSGetDataRequest packet = new TGSGetDataRequest();
int pos = Marshal.SizeOf(packet);
packet = (TGSGetDataRequest)D2DBS.core.BytesToStruct(buf.ToArray(), Marshal.SizeOf(packet), packet.GetType());
string[] Names = BytesToString(buf.GetRange(pos, buf.Count - pos)).Split('\0');
string AccountName = Names[0];
string CharName = Names[1];
TCharInfo CharInfo = new TCharInfo();
byte result = 1;
byte[] data = null;
if (packet.datatype == 1)
{
if (D2DBS.charlock.SetCharLock(CharName, Conn.GSId))
{
data = D2DBS.charfile.GetCharSave(AccountName, CharName);
if (data == null)
{
result = 1;
D2DBS.log.Write("error", "Failed to load charsave `" + CharName + "`(*" + AccountName + ") for gs " + Conn.GSId.ToString());
D2DBS.charlock.UnlockChar(CharName);
}
else
{
result = 0;
D2DBS.log.Write("info", "Loaded charsave `" + CharName + "`(*" + AccountName + ") for gs " + Conn.GSId.ToString());
}
}
else
{
int LockGSId = D2DBS.charlock.GetGSIdByLock(CharName);
result = 1;
D2DBS.log.Write("warn", "Char `" + CharName + "`(*" + AccountName + ") already locked on gs " + LockGSId.ToString() + " for gs " + Conn.GSId.ToString());
//KickPlayer(D2DBS.net.GetConnByGSId(LockGSId), CharName);
}
}
else
{
data = D2DBS.charfile.GetCharInfoRaw(AccountName, CharName);
D2DBS.log.Write("info", "Loaded charinfo `" + CharName + "`(*" + AccountName + ") for gs " + Conn.GSId.ToString());
}
if (result == 0)
{
byte[] RAWCharInfo = D2DBS.charfile.GetCharInfoRaw(AccountName, CharName);
if (RAWCharInfo == null)
{
D2DBS.log.Write("error", "Failed to load charinfo `" + CharName + "`(*" + AccountName + ") for gs " + Conn.GSId.ToString());
D2DBS.charlock.UnlockChar(CharName);
result = 1;
}
else
{
CharInfo = (TCharInfo)D2DBS.core.BytesToStruct(RAWCharInfo, typeof(TCharInfo));
}
}
TDBSGetDataReply rpacket = new TDBSGetDataReply();
if (result == 0)
{
int ladder_time = int.Parse(D2DBS.config["ladderinit_time"]);
if (D2DBS.charfile.GetLadder((ushort)CharInfo.summary.charstatus) == 1)
{
if (CharInfo.header.create_time < ladder_time)
{
rpacket.allowladder = 0;
D2DBS.log.Write("info", "Char `" + CharName + "`(*" + AccountName + ") expired for ladder, converting to non-ladder");
}
else
{
rpacket.allowladder = 1;
}
}
else
{
rpacket.allowladder = 0;
}
rpacket.charcreatetime = CharInfo.header.create_time;
rpacket.datalen = (short)data.Length;
}
else
{
rpacket.allowladder = 0;
rpacket.charcreatetime = 0;
rpacket.datalen = 0;
}
byte[] rawcharname = StringToChars(CharName);
rpacket.h.seqno = packet.h.seqno;
rpacket.h.type = (byte)EPacketType.DBSGetDataReply;
rpacket.h.size = (short)(Marshal.SizeOf(rpacket) + rawcharname.Length + rpacket.datalen);
rpacket.datatype = packet.datatype;
rpacket.result = result;
lock (Conn.StreamLocker)
{
Conn.NetWriter.Write(D2DBS.core.StructToBytes(rpacket));
Conn.NetWriter.Write(rawcharname);
if (rpacket.datalen > 0)
{
Conn.NetWriter.Write(data);
}
Conn.NetWriter.Flush();
}
return(0);
}
private void ClientLoop(object Param)
{
ConnInfo Conn = new ConnInfo((TcpClient)Param);
TcpClient Client = Conn.Client;
string RemoteAddr = Conn.RemoteAddr;
NetworkStream NetStream = Conn.NetStream;
BinaryReader NetReader = Conn.NetReader;
BinaryWriter NetWriter = Conn.NetWriter;
try
{
Client.ReceiveBufferSize = 65535;
Client.SendBufferSize = 65535;
int ConnState = 0;
while (Conn.Disposed == false && Client.Connected == true)
{
if (ConnState == 0)
{
byte ConnClass = NetReader.ReadByte();
if (ConnClass == 0x88)
{
for (int i = 0; i < GSAddr.Count; i++)
{
if (GSAddr[i] == RemoteAddr)
{
if (GSConn.ContainsKey(i))
{
D2DBS.log.Write("warn", "Previous D2GS connection found, dispose.");
GSConn[i].Dispose();
}
if (GSConn.ContainsKey(i) == false)
GSConn.Add(i, Conn);
else
GSConn[i] = Conn;
ConnState = 1;
Conn.GSId = i;
D2DBS.log.Write("info", "D2GS connection from " + RemoteAddr + " accepted (GSId: " + i.ToString() + ")");
break;
}
}
if (ConnState == 0)
{
throw new Exception("D2GS connection from " + RemoteAddr + " not authorized");
}
}
else
{
throw new Exception("Unknown connection class 0x" + ConnClass.ToString("X"));
}
}
else
{
int size;
while ((size = NetReader.ReadInt16()) > 0)
{
byte[] buf = new byte[size];
int leftsize = size;
int pos = 0;
buf[0] = (byte)(size & 0xFF);
buf[1] = (byte)((size >> 8) & 0xFF);
pos += 2;
leftsize -= 2;
while (Conn.Disposed == false && Client.Connected == true && leftsize > 0)
{
int readlen = NetReader.Read(buf, pos, leftsize);
leftsize -= readlen;
pos += readlen;
}
if (leftsize == 0)
{
List<byte> packetbuf = new List<byte>(buf);
int Code = D2DBS.core.DBSHandlePacket(Conn, packetbuf);
if (Code == -1)
{
throw new Exception("Failed to handle packet");
}
}
else
{
throw new Exception("Error occured while receiving packet");
}
}
}
}
}
catch (Exception e)
{
D2DBS.log.Write("error", "Connection from " + RemoteAddr + " closed: " + e.Message + " (GSId: " + Conn.GSId.ToString() + ")");
}
D2DBS.log.Write("error", "D2GS Connection from " + RemoteAddr + " closed (GSId: " + Conn.GSId.ToString() + ")");
Conn.Dispose();
}
private void ClientLoop(object Param)
{
ConnInfo Conn = new ConnInfo((TcpClient)Param);
TcpClient Client = Conn.Client;
string RemoteAddr = Conn.RemoteAddr;
NetworkStream NetStream = Conn.NetStream;
BinaryReader NetReader = Conn.NetReader;
BinaryWriter NetWriter = Conn.NetWriter;
try
{
Client.ReceiveBufferSize = 65535;
Client.SendBufferSize = 65535;
int ConnState = 0;
while (Conn.Disposed == false && Client.Connected == true)
{
if (ConnState == 0)
{
byte ConnClass = NetReader.ReadByte();
if (ConnClass == 0x88)
{
for (int i = 0; i < GSAddr.Count; i++)
{
if (GSAddr[i] == RemoteAddr)
{
if (GSConn.ContainsKey(i))
{
D2DBS.log.Write("warn", "Previous D2GS connection found, dispose.");
GSConn[i].Dispose();
}
if (GSConn.ContainsKey(i) == false)
{
GSConn.Add(i, Conn);
}
else
{
GSConn[i] = Conn;
}
ConnState = 1;
Conn.GSId = i;
D2DBS.log.Write("info", "D2GS connection from " + RemoteAddr + " accepted (GSId: " + i.ToString() + ")");
break;
}
}
if (ConnState == 0)
{
throw new Exception("D2GS connection from " + RemoteAddr + " not authorized");
}
}
else
{
throw new Exception("Unknown connection class 0x" + ConnClass.ToString("X"));
}
}
else
{
int size;
while ((size = NetReader.ReadInt16()) > 0)
{
byte[] buf = new byte[size];
int leftsize = size;
int pos = 0;
buf[0] = (byte)(size & 0xFF);
buf[1] = (byte)((size >> 8) & 0xFF);
pos += 2;
leftsize -= 2;
while (Conn.Disposed == false && Client.Connected == true && leftsize > 0)
{
int readlen = NetReader.Read(buf, pos, leftsize);
leftsize -= readlen;
pos += readlen;
}
if (leftsize == 0)
{
List <byte> packetbuf = new List <byte>(buf);
int Code = D2DBS.core.DBSHandlePacket(Conn, packetbuf);
if (Code == -1)
{
throw new Exception("Failed to handle packet");
}
}
else
{
throw new Exception("Error occured while receiving packet");
}
}
}
}
}
catch (Exception e)
{
D2DBS.log.Write("error", "Connection from " + RemoteAddr + " closed: " + e.Message + " (GSId: " + Conn.GSId.ToString() + ")");
}
D2DBS.log.Write("error", "D2GS Connection from " + RemoteAddr + " closed (GSId: " + Conn.GSId.ToString() + ")");
Conn.Dispose();
}