/// <summary>
/// Send the packet via UDP
/// </summary>
/// <param name="packet">Packet to be sent</param>
/// <param name="isForced">Force UDP packet if <code>true</code>, else packet can be sent over TCP</param>
public virtual void SendUDP(GSUDPPacketOut packet, bool isForced)
{
//Fix the packet size
packet.WritePacketLength();
SavePacket(packet);
SendUDP(packet.GetBuffer(), isForced);
}
/// <summary>
/// 1125 UDPinit reply
/// </summary>
public override void SendUDPInitReply()
{
using (var pak = new GSUDPPacketOut(GetPacketCode(eServerPackets.UDPInitReply)))
{
if (!m_gameClient.Socket.Connected) // not using RC4, wont accept UDP packets anyway.
{
return;
}
ulong datetimenow = (ulong)DateTime.Now.Ticks >> 24; //shift 24 bits to match live value
pak.WriteLongLowEndian(datetimenow);
SendUDP(pak, true);
}
}
/// <summary>
/// This is used to build a server side "Position Object"
/// Usually Position Packet Should only be relayed
/// The only purpose of this method is refreshing postion when there is Lag
/// </summary>
public override void SendPlayerForgedPosition(GamePlayer player)
{
using (GSUDPPacketOut pak = new GSUDPPacketOut(GetPacketCode(eServerPackets.PlayerPosition)))
{
int heading = 4096 + player.Heading;
pak.WriteFloatLowEndian(player.X);
pak.WriteFloatLowEndian(player.Y);
pak.WriteFloatLowEndian(player.Z);
pak.WriteFloatLowEndian(player.CurrentSpeed);
pak.WriteInt(0); // needs to be Zaxis speed
pak.WriteShort((ushort)player.Client.SessionID);
pak.WriteShort(player.CurrentZone.ZoneSkinID);
// Write Speed
if (player.Steed != null && player.Steed.ObjectState == GameObject.eObjectState.Active)
{
player.Heading = player.Steed.Heading;
pak.WriteShort(0x1800);
}
else
{
short rSpeed = player.CurrentSpeed;
if (player.IsIncapacitated)
{
rSpeed = 0;
}
ushort content;
if (rSpeed < 0)
{
content = (ushort)((Math.Abs(rSpeed) > 511 ? 511 : Math.Abs(rSpeed)) + 0x200);
}
else
{
content = (ushort)(rSpeed > 511 ? 511 : rSpeed);
}
if (!player.IsAlive)
{
content += 5 << 10;
}
else
{
ushort state = 0;
if (player.IsSwimming)
{
state = 1;
}
if (player.IsClimbing)
{
state = 7;
}
if (player.IsSitting)
{
state = 4;
}
content += (ushort)(state << 10);
}
content += (ushort)(player.IsStrafing ? 1 << 13 : 0 << 13);
pak.WriteShort(content);
}
pak.WriteByte(0);
pak.WriteByte(0);
pak.WriteShort((ushort)heading);
// Write Flags
byte flagcontent = 0;
if (player.IsDiving)
{
flagcontent += 0x04;
}
if (player.IsWireframe)
{
flagcontent += 0x01;
}
if (player.IsStealthed)
{
flagcontent += 0x02;
}
if (player.IsTorchLighted)
{
flagcontent += 0x80;
}
pak.WriteByte(flagcontent);
pak.WriteByte((byte)(player.RPFlag ? 1 : 0));
pak.WriteByte(0);
pak.WriteByte(player.HealthPercent);
pak.WriteByte(player.ManaPercent);
pak.WriteByte(player.EndurancePercent);
SendUDP(pak);
}
// Update Cache
m_gameClient.GameObjectUpdateArray[new Tuple <ushort, ushort>(player.CurrentRegionID, (ushort)player.ObjectID)] = GameTimer.GetTickCount();
}
/// <summary>
/// Send the UDP packet without changing any portion of the packet
/// </summary>
/// <param name="packet">Packet to be sent</param>
public void SendUDPRaw(GSUDPPacketOut packet)
{
SendUDP((byte[]) packet.GetBuffer().Clone(), false);
}
/// <summary>
/// Send the packet via UDP
/// </summary>
/// <param name="packet">Packet to be sent</param>
public virtual void SendUDP(GSUDPPacketOut packet)
{
SendUDP(packet, false);
}
public virtual void SendObjectUpdate(GameObject obj)
{
Zone z = obj.CurrentZone;
if (z == null ||
m_gameClient.Player == null ||
m_gameClient.Player.IsVisibleTo(obj) == false)
{
return;
}
var xOffsetInZone = (ushort) (obj.X - z.XOffset);
var yOffsetInZone = (ushort) (obj.Y - z.YOffset);
ushort xOffsetInTargetZone = 0;
ushort yOffsetInTargetZone = 0;
ushort zOffsetInTargetZone = 0;
int speed = 0;
ushort targetZone = 0;
byte flags = 0;
int targetOID = 0;
if (obj is GameNPC)
{
var npc = obj as GameNPC;
flags = (byte) (GameServer.ServerRules.GetLivingRealm(m_gameClient.Player, npc) << 6);
if (m_gameClient.Account.PrivLevel < 2)
{
// no name only if normal player
if ((npc.Flags & GameNPC.eFlags.CANTTARGET) != 0)
flags |= 0x01;
if ((npc.Flags & GameNPC.eFlags.DONTSHOWNAME) != 0)
flags |= 0x02;
}
if ((npc.Flags & GameNPC.eFlags.STATUE) != 0)
{
flags |= 0x01;
}
if (npc.IsUnderwater)
{
flags |= 0x10;
}
if ((npc.Flags & GameNPC.eFlags.FLYING) != 0)
{
flags |= 0x20;
}
if (npc.IsMoving && !npc.IsAtTargetPosition)
{
speed = npc.CurrentSpeed;
if (npc.TargetPosition.X != 0 || npc.TargetPosition.Y != 0 || npc.TargetPosition.Z != 0)
{
Zone tz = npc.CurrentRegion.GetZone(npc.TargetPosition.X, npc.TargetPosition.Y);
if (tz != null)
{
xOffsetInTargetZone = (ushort) (npc.TargetPosition.X - tz.XOffset);
yOffsetInTargetZone = (ushort) (npc.TargetPosition.Y - tz.YOffset);
zOffsetInTargetZone = (ushort) (npc.TargetPosition.Z);
//Dinberg:Instances - zoneSkinID for object positioning clientside.
targetZone = tz.ZoneSkinID;
}
}
if (speed > 0x07FF)
{
speed = 0x07FF;
}
else if (speed < 0)
{
speed = 0;
}
}
GameObject target = npc.TargetObject;
if (npc.AttackState && target != null && target.ObjectState == GameObject.eObjectState.Active && !npc.IsTurningDisabled)
targetOID = (ushort) target.ObjectID;
}
var pak = new GSUDPPacketOut(GetPacketCode(eServerPackets.ObjectUpdate));
pak.WriteShort((ushort) speed);
if (obj is GameNPC)
{
pak.WriteShort((ushort)(obj.Heading & 0xFFF));
}
else
{
pak.WriteShort(obj.Heading);
}
pak.WriteShort(xOffsetInZone);
pak.WriteShort(xOffsetInTargetZone);
pak.WriteShort(yOffsetInZone);
pak.WriteShort(yOffsetInTargetZone);
pak.WriteShort((ushort) obj.Z);
pak.WriteShort(zOffsetInTargetZone);
pak.WriteShort((ushort) obj.ObjectID);
pak.WriteShort((ushort) targetOID);
//health
if (obj is GameLiving)
{
pak.WriteByte((obj as GameLiving).HealthPercent);
}
else
{
pak.WriteByte(0);
}
//Dinberg:Instances - zoneskinID for positioning of objects clientside.
flags |= (byte) (((z.ZoneSkinID & 0x100) >> 6) | ((targetZone & 0x100) >> 5));
pak.WriteByte(flags);
pak.WriteByte((byte) z.ZoneSkinID);
//Dinberg:Instances - targetZone already accomodates for this feat.
pak.WriteByte((byte) targetZone);
SendUDP(pak);
if (obj is GameNPC)
{
(obj as GameNPC).NPCUpdatedCallback();
}
}
//static int lastZ=int.MinValue;
public void HandlePacket(GameClient client, GSPacketIn packet)
{
//Tiv: in very rare cases client send 0xA9 packet before sending S<=C 0xE8 player world initialize
if ((client.Player.ObjectState != GameObject.eObjectState.Active) ||
(client.ClientState != GameClient.eClientState.Playing))
return;
int environmentTick = Environment.TickCount;
int packetVersion;
if (client.Version > GameClient.eClientVersion.Version171)
{
packetVersion = 172;
}
else
{
packetVersion = 168;
}
int oldSpeed = client.Player.CurrentSpeed;
//read the state of the player
packet.Skip(2); //PID
ushort data = packet.ReadShort();
int speed = (data & 0x1FF);
// if(!GameServer.ServerRules.IsAllowedDebugMode(client)
// && (speed > client.Player.MaxSpeed + SPEED_TOL))
if ((data & 0x200) != 0)
speed = -speed;
if (client.Player.IsMezzed || client.Player.IsStunned)
{
// Nidel: updating client.Player.CurrentSpeed instead of speed
client.Player.CurrentSpeed = 0;
}
else
{
client.Player.CurrentSpeed = (short)speed;
}
client.Player.IsStrafing = ((data & 0xe000) != 0);
int realZ = packet.ReadShort();
ushort xOffsetInZone = packet.ReadShort();
ushort yOffsetInZone = packet.ReadShort();
ushort currentZoneID;
if (packetVersion == 168)
{
currentZoneID = (ushort)packet.ReadByte();
packet.Skip(1); //0x00 padding for zoneID
}
else
{
currentZoneID = packet.ReadShort();
}
//Dinberg - Instance considerations.
//Now this gets complicated, so listen up! We have told the client a lie when it comes to the zoneID.
//As a result, every movement update, they are sending a lie back to us. Two liars could get confusing!
//BUT, the lie we sent has a truth to it - the geometry and layout of the zone. As a result, the zones
//x and y offsets will still actually be relevant to our current zone. And for the clones to have been
//created, there must have been a real zone to begin with, of id == instanceZone.SkinID.
//So, although our client is lying to us, and thinks its in another zone, that zone happens to coincide
//exactly with the zone we are instancing - and so all the positions still ring true.
//Philosophically speaking, its like looking in a mirror and saying 'Am I a reflected, or reflector?'
//What it boils down to has no bearing whatsoever on the result of anything, so long as someone sitting
//outside of the unvierse knows not to listen to whether you say which you are, and knows the truth to the
//answer. Then, he need only know what you are doing ;)
Zone newZone = WorldMgr.GetZone(currentZoneID);
if (newZone == null)
{
if(client.Player==null) return;
if(!client.Player.TempProperties.getProperty("isbeingbanned",false))
{
if (log.IsErrorEnabled)
log.Error(client.Player.Name + "'s position in unknown zone! => " + currentZoneID);
GamePlayer player=client.Player;
player.TempProperties.setProperty("isbeingbanned", true);
player.MoveToBind();
}
return; // TODO: what should we do? player lost in space
}
// move to bind if player fell through the floor
if (realZ == 0)
{
client.Player.MoveTo(
(ushort)client.Player.BindRegion,
client.Player.BindXpos,
client.Player.BindYpos,
(ushort)client.Player.BindZpos,
(ushort)client.Player.BindHeading
);
return;
}
int realX = newZone.XOffset + xOffsetInZone;
int realY = newZone.YOffset + yOffsetInZone;
bool zoneChange = newZone != client.Player.LastPositionUpdateZone;
if (zoneChange)
{
//If the region changes -> make sure we don't take any falling damage
if (client.Player.LastPositionUpdateZone != null && newZone.ZoneRegion.ID != client.Player.LastPositionUpdateZone.ZoneRegion.ID)
client.Player.MaxLastZ = int.MinValue;
// Update water level and diving flag for the new zone
client.Out.SendPlayerPositionAndObjectID();
zoneChange = true;
/*
* "You have entered Burial Tomb."
* "Burial Tomb"
* "Current area is adjusted for one level 1 player."
* "Current area has a 50% instance bonus."
*/
string description = newZone.Description;
string screenDescription = description;
var translation = client.GetTranslation(newZone) as DBLanguageZone;
if (translation != null)
{
if (!Util.IsEmpty(translation.Description))
description = translation.Description;
if (!Util.IsEmpty(translation.ScreenDescription))
screenDescription = translation.ScreenDescription;
}
client.Out.SendMessage(LanguageMgr.GetTranslation(client.Account.Language, "PlayerPositionUpdateHandler.Entered", description),
eChatType.CT_System, eChatLoc.CL_SystemWindow);
client.Out.SendMessage(screenDescription, eChatType.CT_ScreenCenterSmaller, eChatLoc.CL_SystemWindow);
client.Player.LastPositionUpdateZone = newZone;
}
int coordsPerSec = 0;
int jumpDetect = 0;
int timediff = Environment.TickCount - client.Player.LastPositionUpdateTick;
int distance = 0;
if (timediff > 0)
{
distance = client.Player.LastPositionUpdatePoint.GetDistanceTo(new Point3D(realX, realY, realZ));
coordsPerSec = distance * 1000 / timediff;
if (distance < 100 && client.Player.LastPositionUpdatePoint.Z > 0)
{
jumpDetect = realZ - client.Player.LastPositionUpdatePoint.Z;
}
}
#region DEBUG
#if OUTPUT_DEBUG_INFO
if (client.Player.LastPositionUpdatePoint.X != 0 && client.Player.LastPositionUpdatePoint.Y != 0)
{
log.Debug(client.Player.Name + ": distance = " + distance + ", speed = " + oldSpeed + ", coords/sec=" + coordsPerSec);
}
if (jumpDetect > 0)
{
log.Debug(client.Player.Name + ": jumpdetect = " + jumpDetect);
}
#endif
#endregion DEBUG
client.Player.LastPositionUpdateTick = Environment.TickCount;
client.Player.LastPositionUpdatePoint.X = realX;
client.Player.LastPositionUpdatePoint.Y = realY;
client.Player.LastPositionUpdatePoint.Z = realZ;
int tolerance = ServerProperties.Properties.CPS_TOLERANCE;
if (client.Player.Steed != null && client.Player.Steed.MaxSpeed > 0)
{
tolerance += client.Player.Steed.MaxSpeed;
}
else if (client.Player.MaxSpeed > 0)
{
tolerance += client.Player.MaxSpeed;
}
if (client.Player.IsJumping)
{
coordsPerSec = 0;
jumpDetect = 0;
client.Player.IsJumping = false;
}
if (client.Player.IsAllowedToFly == false && (coordsPerSec > tolerance || jumpDetect > ServerProperties.Properties.JUMP_TOLERANCE))
{
bool isHackDetected = true;
if (coordsPerSec > tolerance)
{
// check to see if CPS time tolerance is exceeded
int lastCPSTick = client.Player.TempProperties.getProperty<int>(LASTCPSTICK, 0);
if (environmentTick - lastCPSTick > ServerProperties.Properties.CPS_TIME_TOLERANCE)
{
isHackDetected = false;
}
}
if (isHackDetected)
{
StringBuilder builder = new StringBuilder();
builder.Append("MOVEHACK_DETECT");
builder.Append(": CharName=");
builder.Append(client.Player.Name);
builder.Append(" Account=");
builder.Append(client.Account.Name);
builder.Append(" IP=");
builder.Append(client.TcpEndpointAddress);
builder.Append(" CPS:=");
builder.Append(coordsPerSec);
builder.Append(" JT=");
builder.Append(jumpDetect);
ChatUtil.SendDebugMessage(client, builder.ToString());
if (client.Account.PrivLevel == 1)
{
GameServer.Instance.LogCheatAction(builder.ToString());
if (ServerProperties.Properties.ENABLE_MOVEDETECT)
{
if (ServerProperties.Properties.BAN_HACKERS && false) // banning disabled until this technique is proven accurate
{
DBBannedAccount b = new DBBannedAccount();
b.Author = "SERVER";
b.Ip = client.TcpEndpointAddress;
b.Account = client.Account.Name;
b.DateBan = DateTime.Now;
b.Type = "B";
b.Reason = string.Format("Autoban MOVEHACK:(CPS:{0}, JT:{1}) on player:{2}", coordsPerSec, jumpDetect, client.Player.Name);
GameServer.Database.AddObject(b);
GameServer.Database.SaveObject(b);
string message = "";
message = "You have been auto kicked and banned due to movement hack detection!";
for (int i = 0; i < 8; i++)
{
client.Out.SendMessage(message, eChatType.CT_Help, eChatLoc.CL_SystemWindow);
client.Out.SendMessage(message, eChatType.CT_Help, eChatLoc.CL_ChatWindow);
}
client.Out.SendPlayerQuit(true);
client.Player.SaveIntoDatabase();
client.Player.Quit(true);
}
else
{
string message = "";
message = "You have been auto kicked due to movement hack detection!";
for (int i = 0; i < 8; i++)
{
client.Out.SendMessage(message, eChatType.CT_Help, eChatLoc.CL_SystemWindow);
client.Out.SendMessage(message, eChatType.CT_Help, eChatLoc.CL_ChatWindow);
}
client.Out.SendPlayerQuit(true);
client.Player.SaveIntoDatabase();
client.Player.Quit(true);
}
client.Disconnect();
return;
}
}
}
client.Player.TempProperties.setProperty(LASTCPSTICK, environmentTick);
}
ushort headingflag = packet.ReadShort();
client.Player.Heading = (ushort)(headingflag & 0xFFF);
ushort flyingflag = packet.ReadShort();
byte flags = (byte)packet.ReadByte();
if (client.Player.X != realX || client.Player.Y != realY)
{
client.Player.TempProperties.setProperty(LASTMOVEMENTTICK, client.Player.CurrentRegion.Time);
}
client.Player.X = realX;
client.Player.Y = realY;
client.Player.Z = realZ;
if (zoneChange)
{
// update client zone information for waterlevel and diving
client.Out.SendPlayerPositionAndObjectID();
}
// used to predict current position, should be before
// any calculation (like fall damage)
client.Player.MovementStartTick = Environment.TickCount;
// Begin ---------- New Area System -----------
if (client.Player.CurrentRegion.Time > client.Player.AreaUpdateTick) // check if update is needed
{
var oldAreas = client.Player.CurrentAreas;
// Because we may be in an instance we need to do the area check from the current region
// rather than relying on the zone which is in the skinned region. - Tolakram
var newAreas = client.Player.CurrentRegion.GetAreasOfZone(newZone, client.Player);
// Check for left areas
if (oldAreas != null)
{
foreach (IArea area in oldAreas)
{
if (!newAreas.Contains(area))
{
area.OnPlayerLeave(client.Player);
}
}
}
// Check for entered areas
foreach (IArea area in newAreas)
{
if (oldAreas == null || !oldAreas.Contains(area))
{
area.OnPlayerEnter(client.Player);
}
}
// set current areas to new one...
client.Player.CurrentAreas = newAreas;
client.Player.AreaUpdateTick = client.Player.CurrentRegion.Time + 2000; // update every 2 seconds
}
// End ---------- New Area System -----------
client.Player.TargetInView = ((flags & 0x10) != 0);
client.Player.GroundTargetInView = ((flags & 0x08) != 0);
client.Player.IsTorchLighted = ((flags & 0x80) != 0);
//7 6 5 4 3 2 1 0
//15 14 13 12 11 10 9 8
// 1 1
const string SHLASTUPDATETICK = "SHPLAYERPOSITION_LASTUPDATETICK";
const string SHLASTFLY = "SHLASTFLY_STRING";
const string SHLASTSTATUS = "SHLASTSTATUS_STRING";
int SHlastTick = client.Player.TempProperties.getProperty<int>(SHLASTUPDATETICK);
int SHlastFly = client.Player.TempProperties.getProperty<int>(SHLASTFLY);
int SHlastStatus = client.Player.TempProperties.getProperty<int>(SHLASTSTATUS);
int SHcount = client.Player.TempProperties.getProperty<int>(SHSPEEDCOUNTER);
int status = (data & 0x1FF ^ data) >> 8;
int fly = (flyingflag & 0x1FF ^ flyingflag) >> 8;
if (client.Player.IsJumping)
{
SHcount = 0;
}
if (SHlastTick != 0 && SHlastTick != environmentTick)
{
if (((SHlastStatus == status || (status & 0x8) == 0)) && ((fly & 0x80) != 0x80) && (SHlastFly == fly || (SHlastFly & 0x10) == (fly & 0x10) || !((((SHlastFly & 0x10) == 0x10) && ((fly & 0x10) == 0x0) && (flyingflag & 0x7FF) > 0))))
{
if ((environmentTick - SHlastTick) < 400)
{
SHcount++;
if (SHcount > 1 && client.Account.PrivLevel > 1)
{
//Apo: ?? no idea how to name the first parameter for language translation: 1: ??, 2: {detected} ?, 3: {count} ?
client.Out.SendMessage(string.Format("SH: ({0}) detected: {1}, count {2}", 500 / (environmentTick - SHlastTick), environmentTick - SHlastTick, SHcount), eChatType.CT_Staff, eChatLoc.CL_SystemWindow);
}
if (SHcount % 5 == 0)
{
StringBuilder builder = new StringBuilder();
builder.Append("TEST_SH_DETECT[");
builder.Append(SHcount);
builder.Append("] (");
builder.Append(environmentTick - SHlastTick);
builder.Append("): CharName=");
builder.Append(client.Player.Name);
builder.Append(" Account=");
builder.Append(client.Account.Name);
builder.Append(" IP=");
builder.Append(client.TcpEndpointAddress);
GameServer.Instance.LogCheatAction(builder.ToString());
if (client.Account.PrivLevel > 1)
{
client.Out.SendMessage("SH: Logging SH cheat.", eChatType.CT_Damaged, eChatLoc.CL_SystemWindow);
if (SHcount >= ServerProperties.Properties.SPEEDHACK_TOLERANCE)
client.Out.SendMessage("SH: Player would have been banned!", eChatType.CT_Damaged, eChatLoc.CL_SystemWindow);
}
if ((client.Account.PrivLevel == 1) && SHcount >= ServerProperties.Properties.SPEEDHACK_TOLERANCE)
{
if (ServerProperties.Properties.BAN_HACKERS)
{
DBBannedAccount b = new DBBannedAccount();
b.Author = "SERVER";
b.Ip = client.TcpEndpointAddress;
b.Account = client.Account.Name;
b.DateBan = DateTime.Now;
b.Type = "B";
b.Reason = string.Format("Autoban SH:({0},{1}) on player:{2}", SHcount, environmentTick - SHlastTick, client.Player.Name);
GameServer.Database.AddObject(b);
GameServer.Database.SaveObject(b);
string message = "";
message = "You have been auto kicked and banned for speed hacking!";
for (int i = 0; i < 8; i++)
{
client.Out.SendMessage(message, eChatType.CT_Help, eChatLoc.CL_SystemWindow);
client.Out.SendMessage(message, eChatType.CT_Help, eChatLoc.CL_ChatWindow);
}
client.Out.SendPlayerQuit(true);
client.Player.SaveIntoDatabase();
client.Player.Quit(true);
}
else
{
string message = "";
message = "You have been auto kicked for speed hacking!";
for (int i = 0; i < 8; i++)
{
client.Out.SendMessage(message, eChatType.CT_Help, eChatLoc.CL_SystemWindow);
client.Out.SendMessage(message, eChatType.CT_Help, eChatLoc.CL_ChatWindow);
}
client.Out.SendPlayerQuit(true);
client.Player.SaveIntoDatabase();
client.Player.Quit(true);
}
client.Disconnect();
return;
}
}
}
else
{
SHcount = 0;
}
SHlastTick = environmentTick;
}
}
else
{
SHlastTick = environmentTick;
}
int state = ((data >> 10) & 7);
client.Player.IsClimbing = (state == 7);
client.Player.IsSwimming = (state == 1);
if (state == 3 && client.Player.TempProperties.getProperty<bool>(GamePlayer.DEBUG_MODE_PROPERTY, false) == false && client.Player.IsAllowedToFly == false) //debugFly on, but player not do /debug on (hack)
{
StringBuilder builder = new StringBuilder();
builder.Append("HACK_FLY");
builder.Append(": CharName=");
builder.Append(client.Player.Name);
builder.Append(" Account=");
builder.Append(client.Account.Name);
builder.Append(" IP=");
builder.Append(client.TcpEndpointAddress);
GameServer.Instance.LogCheatAction(builder.ToString());
{
if (ServerProperties.Properties.BAN_HACKERS)
{
DBBannedAccount b = new DBBannedAccount();
b.Author = "SERVER";
b.Ip = client.TcpEndpointAddress;
b.Account = client.Account.Name;
b.DateBan = DateTime.Now;
b.Type = "B";
b.Reason = string.Format("Autoban flying hack: on player:{0}", client.Player.Name);
GameServer.Database.AddObject(b);
GameServer.Database.SaveObject(b);
}
string message = "";
message = "Client Hack Detected!";
for (int i = 0; i < 6; i++)
{
client.Out.SendMessage(message, eChatType.CT_System, eChatLoc.CL_SystemWindow);
client.Out.SendMessage(message, eChatType.CT_System, eChatLoc.CL_ChatWindow);
}
client.Out.SendPlayerQuit(true);
client.Disconnect();
return;
}
}
SHlastFly = fly;
SHlastStatus = status;
client.Player.TempProperties.setProperty(SHLASTUPDATETICK, SHlastTick);
client.Player.TempProperties.setProperty(SHLASTFLY, SHlastFly);
client.Player.TempProperties.setProperty(SHLASTSTATUS, SHlastStatus);
client.Player.TempProperties.setProperty(SHSPEEDCOUNTER, SHcount);
lock (client.Player.LastUniqueLocations)
{
GameLocation[] locations = client.Player.LastUniqueLocations;
GameLocation loc = locations[0];
if (loc.X != realX || loc.Y != realY || loc.Z != realZ || loc.RegionID != client.Player.CurrentRegionID)
{
loc = locations[locations.Length - 1];
Array.Copy(locations, 0, locations, 1, locations.Length - 1);
locations[0] = loc;
loc.X = realX;
loc.Y = realY;
loc.Z = realZ;
loc.Heading = client.Player.Heading;
loc.RegionID = client.Player.CurrentRegionID;
}
}
//**************//
//FALLING DAMAGE//
//**************//
if (GameServer.ServerRules.CanTakeFallDamage(client.Player) && client.Player.IsSwimming == false)
{
int maxLastZ = client.Player.MaxLastZ;
/* Are we on the ground? */
if ((flyingflag >> 15) != 0)
{
int safeFallLevel = client.Player.GetAbilityLevel(Abilities.SafeFall);
int fallSpeed = (flyingflag & 0xFFF) - 100 * safeFallLevel; // 0x7FF fall speed and 0x800 bit = fall speed overcaped
int fallMinSpeed = 400;
int fallDivide = 6;
if (client.Version >= GameClient.eClientVersion.Version188)
{
fallMinSpeed = 500;
fallDivide = 15;
}
int fallPercent = Math.Min(99, (fallSpeed - (fallMinSpeed + 1)) / fallDivide);
if (fallSpeed > fallMinSpeed)
{
client.Out.SendMessage(LanguageMgr.GetTranslation(client.Account.Language, "PlayerPositionUpdateHandler.FallingDamage"),
eChatType.CT_Damaged, eChatLoc.CL_SystemWindow);
client.Player.CalcFallDamage(fallPercent);
}
client.Player.MaxLastZ = client.Player.Z;
}
else
{
// always set Z if on the ground
if (flyingflag == 0)
client.Player.MaxLastZ = client.Player.Z;
// set Z if in air and higher than old Z
else if (maxLastZ < client.Player.Z)
client.Player.MaxLastZ = client.Player.Z;
}
}
//**************//
byte[] con168 = packet.ToArray();
con168[0] = (byte)(client.SessionID >> 8);
con168[1] = (byte)(client.SessionID & 0xff);
//Riding is set here!
if (client.Player.Steed != null && client.Player.Steed.ObjectState == GameObject.eObjectState.Active)
{
client.Player.Heading = client.Player.Steed.Heading;
con168[2] = 0x18; // Set ride flag 00011000
con168[3] = 0; // player speed = 0 while ride
con168[12] = (byte)(client.Player.Steed.ObjectID >> 8); //heading = steed ID
con168[13] = (byte)(client.Player.Steed.ObjectID & 0xFF);
con168[14] = (byte)0;
con168[15] = (byte)(client.Player.Steed.RiderSlot(client.Player)); // there rider slot this player
}
else if (!client.Player.IsAlive)
{
con168[2] &= 0xE3; //11100011
con168[2] |= 0x14; //Set dead flag 00010100
}
//diving is set here
con168[16] &= 0xFB; //11 11 10 11
if ((con168[16] & 0x02) != 0x00)
{
client.Player.IsDiving = true;
con168[16] |= 0x04;
}
else
client.Player.IsDiving = false;
con168[16] &= 0xFC; //11 11 11 00 cleared Wireframe & Stealth bits
if (client.Player.IsWireframe)
{
con168[16] |= 0x01;
}
//stealth is set here
if (client.Player.IsStealthed)
{
con168[16] |= 0x02;
}
con168[17] = (byte)((con168[17] & 0x80) | client.Player.HealthPercent);
// zone ID has changed in 1.72, fix bytes 11 and 12
byte[] con172 = (byte[])con168.Clone();
if (packetVersion == 168)
{
// client sent v168 pos update packet, fix 172 version
con172[10] = 0;
con172[11] = con168[10];
}
else
{
// client sent v172 pos update packet, fix 168 version
con168[10] = con172[11];
con168[11] = 0;
}
GSUDPPacketOut outpak168 = new GSUDPPacketOut(client.Out.GetPacketCode(eServerPackets.PlayerPosition));
//Now copy the whole content of the packet
outpak168.Write(con168, 0, 18/*con168.Length*/);
outpak168.WritePacketLength();
GSUDPPacketOut outpak172 = new GSUDPPacketOut(client.Out.GetPacketCode(eServerPackets.PlayerPosition));
//Now copy the whole content of the packet
outpak172.Write(con172, 0, 18/*con172.Length*/);
outpak172.WritePacketLength();
// byte[] pak168 = outpak168.GetBuffer();
// byte[] pak172 = outpak172.GetBuffer();
// outpak168 = null;
// outpak172 = null;
GSUDPPacketOut outpak190 = null;
GSUDPPacketOut outpak1112 = new GSUDPPacketOut(client.Out.GetPacketCode(eServerPackets.PlayerPosition));
outpak1112.Write(con172, 0, 18/*con172.Length*/);
outpak1112.WriteByte(client.Player.ManaPercent);
outpak1112.WriteByte(client.Player.EndurancePercent);
outpak1112.WriteByte((byte)(client.Player.RPFlag ? 1 : 0));
outpak1112.WriteByte(0); //outpak1112.WriteByte((con168.Length == 22) ? con168[21] : (byte)0);
outpak1112.WritePacketLength();
foreach (GamePlayer player in client.Player.GetPlayersInRadius(WorldMgr.VISIBILITY_DISTANCE))
{
if (player == null)
continue;
//No position updates for ourselves
if (player == client.Player)
{
// Update Player Cache (Client sending Packet is admitting he's already having it)
player.Client.GameObjectUpdateArray[new Tuple<ushort, ushort>(client.Player.CurrentRegionID, (ushort)client.Player.ObjectID)] = GameTimer.GetTickCount();
continue;
}
//no position updates in different houses
if ((client.Player.InHouse || player.InHouse) && player.CurrentHouse != client.Player.CurrentHouse)
continue;
if (client.Player.MinotaurRelic != null)
{
MinotaurRelic relic = client.Player.MinotaurRelic;
if (!relic.Playerlist.Contains(player) && player != client.Player)
{
relic.Playerlist.Add(player);
player.Out.SendMinotaurRelicWindow(client.Player, client.Player.MinotaurRelic.Effect, true);
}
}
if (!client.Player.IsStealthed || player.CanDetect(client.Player))
{
// Update Player Cache
player.Client.GameObjectUpdateArray[new Tuple<ushort, ushort>(client.Player.CurrentRegionID, (ushort)client.Player.ObjectID)] = GameTimer.GetTickCount();
//forward the position packet like normal!
if (player.Client.Version >= GameClient.eClientVersion.Version1112)
{
player.Out.SendUDPRaw(outpak1112);
}
else if (player.Client.Version >= GameClient.eClientVersion.Version190)
{
if (outpak190 == null)
{
outpak190 = new GSUDPPacketOut(client.Out.GetPacketCode(eServerPackets.PlayerPosition));
outpak190.Write(con172, 0, 18/*con172.Length*/);
outpak190.WriteByte(client.Player.ManaPercent);
outpak190.WriteByte(client.Player.EndurancePercent);
outpak190.FillString(client.Player.CharacterClass.Name, 32);
// roleplay flag, if == 1, show name (RP) with gray color
if (client.Player.RPFlag)
outpak190.WriteByte(1);
else outpak190.WriteByte(0);
outpak190.WriteByte((con168.Length == 54) ? con168[53] : (byte) 0); // send last byte for 190+ packets
outpak190.WritePacketLength();
}
player.Out.SendUDPRaw(outpak190);
}
else if (player.Client.Version >= GameClient.eClientVersion.Version172)
player.Out.SendUDPRaw(outpak172);
else
player.Out.SendUDPRaw(outpak168);
}
else
player.Out.SendObjectDelete(client.Player); //remove the stealthed player from view
}
if (client.Player.CharacterClass.ID == (int)eCharacterClass.Warlock)
{
//Send Chamber effect
client.Player.Out.SendWarlockChamberEffect(client.Player);
}
//handle closing of windows
//trade window
if (client.Player.TradeWindow != null)
{
if (client.Player.TradeWindow.Partner != null)
{
if (!client.Player.IsWithinRadius(client.Player.TradeWindow.Partner, WorldMgr.GIVE_ITEM_DISTANCE))
client.Player.TradeWindow.CloseTrade();
}
}
}
/// <summary>
/// Send the packet via UDP
/// </summary>
/// <param name="packet">Packet to be sent</param>
/// <param name="isForced">Force UDP packet if <code>true</code>, else packet can be sent over TCP</param>
public virtual void SendUDP(GSUDPPacketOut packet, bool isForced)
{
m_gameClient.PacketProcessor.SendUDP(packet, isForced);
}
/// <summary>
/// Send the UDP packet without changing any portion of the packet
/// </summary>
/// <param name="packet">Packet to be sent</param>
public void SendUDPRaw(GSUDPPacketOut packet)
{
SendUDP((byte[]) packet.GetBuffer().Clone(), false);
}
public void SendUDPRaw(GSUDPPacketOut packet) { }
/// <summary>
/// Send the packet via UDP
/// </summary>
/// <param name="packet">Packet to be sent</param>
/// <param name="isForced">Force UDP packet if <code>true</code>, else packet can be sent over TCP</param>
public virtual void SendUDP(GSUDPPacketOut packet, bool isForced)
{
//Fix the packet size
packet.WritePacketLength();
SavePacket(packet);
SendUDP(packet.GetBuffer(), isForced);
}
public void SendUDPRaw(GSUDPPacketOut packet)
{
if (SendUDPRawPacket != null) SendUDPRawPacket(this, packet);
}
/// <summary>
/// Send the packet via UDP
/// </summary>
/// <param name="packet">Packet to be sent</param>
/// <param name="isForced">Force UDP packet if <code>true</code>, else packet can be sent over TCP</param>
public virtual void SendUDP(GSUDPPacketOut packet, bool isForced)
{
m_gameClient.PacketProcessor.SendUDP(packet, isForced);
}
/// <summary>
/// Send the UDP packet without changing any portion of the packet
/// </summary>
/// <param name="packet">Packet to be sent</param>
public void SendUDPRaw(GSUDPPacketOut packet)
{
m_gameClient.PacketProcessor.SendUDPRaw(packet);
}
/// <summary>
/// This is used to build a server side "Position Object"
/// Usually Position Packet Should only be relayed
/// The only purpose of this method is refreshing postion when there is Lag
/// </summary>
/// <param name="player"></param>
public virtual void SendPlayerForgedPosition(GamePlayer player)
{
using (GSUDPPacketOut pak = new GSUDPPacketOut(GetPacketCode(eServerPackets.PlayerPosition)))
{
// PID
pak.WriteShort((ushort)player.Client.SessionID);
// Write Speed
if (player.Steed != null && player.Steed.ObjectState == GameObject.eObjectState.Active)
{
player.Heading = player.Steed.Heading;
pak.WriteShort(0x1800);
}
else
{
short rSpeed = player.CurrentSpeed;
if (player.IsIncapacitated)
rSpeed = 0;
ushort content;
if (rSpeed < 0)
{
content = (ushort)((Math.Abs(rSpeed) > 511 ? 511 : Math.Abs(rSpeed)) + 0x200);
}
else
{
content = (ushort)(rSpeed > 511 ? 511 : rSpeed);
}
if (!player.IsAlive)
{
content += 5 << 10;
}
else
{
ushort state = 0;
if (player.IsSwimming)
state = 1;
if (player.IsClimbing)
state = 7;
if (player.IsSitting)
state = 4;
content += (ushort)(state << 10);
}
content += (ushort)(player.IsStrafing ? 1 << 13 : 0 << 13);
pak.WriteShort(content);
}
// Get Off Corrd
int offX = player.X - player.CurrentZone.XOffset;
int offY = player.Y - player.CurrentZone.YOffset;
pak.WriteShort((ushort)player.Z);
pak.WriteShort((ushort)offX);
pak.WriteShort((ushort)offY);
// Write Zone
pak.WriteByte((byte)player.CurrentZone.ZoneSkinID);
pak.WriteByte(0);
// Copy Heading && Falling or Write Steed
if (player.Steed != null && player.Steed.ObjectState == GameObject.eObjectState.Active)
{
pak.WriteShort((ushort)player.Steed.ObjectID);
pak.WriteShort((ushort)player.Steed.RiderSlot(player));
}
else
{
// Set Player always on ground, this is an "anti lag" packet
ushort contenthead = (ushort)(player.Heading + (true ? 0x1000 : 0));
pak.WriteShort(contenthead);
// No Fall Speed.
pak.WriteShort(0);
}
// Write Flags
byte flagcontent = 0;
if (player.IsDiving)
{
flagcontent += 0x04;
}
if (player.IsWireframe)
{
flagcontent += 0x01;
}
if (player.IsStealthed)
{
flagcontent += 0x02;
}
if (player.IsTorchLighted)
{
flagcontent += 0x80;
}
pak.WriteByte(flagcontent);
// Write health + Attack
byte healthcontent = (byte)(player.HealthPercent + (player.AttackState ? 0x80 : 0));
pak.WriteByte(healthcontent);
SendUDP(pak);
}
// Update Cache
m_gameClient.GameObjectUpdateArray[new Tuple<ushort, ushort>(player.CurrentRegionID, (ushort)player.ObjectID)] = GameTimer.GetTickCount();
}
/// <summary>
/// Send the packet via UDP
/// </summary>
/// <param name="packet">Packet to be sent</param>
public virtual void SendUDP(GSUDPPacketOut packet)
{
SendUDP(packet, false);
}
public virtual void SendUDPInitReply()
{
var pak = new GSUDPPacketOut(GetPacketCode(eServerPackets.UDPInitReply));
Region playerRegion = null;
if (!m_gameClient.Socket.Connected)
return;
if (m_gameClient.Player != null && m_gameClient.Player.CurrentRegion != null)
playerRegion = m_gameClient.Player.CurrentRegion;
if (playerRegion == null)
pak.Fill(0x0, 0x18);
else
{
//Try to fix the region ip so UDP is enabled!
string ip = playerRegion.ServerIP;
if (ip == "any" || ip == "0.0.0.0" || ip == "127.0.0.1" || ip.StartsWith("10.13.") || ip.StartsWith("192.168."))
ip = ((IPEndPoint) m_gameClient.Socket.LocalEndPoint).Address.ToString();
pak.FillString(ip, 22);
pak.WriteShort(playerRegion.ServerPort);
}
SendUDP(pak, true);
}
/// <summary>
/// This is used to build a server side "Position Object"
/// Usually Position Packet Should only be relayed
/// The only purpose of this method is refreshing postion when there is Lag
/// </summary>
/// <param name="player"></param>
public override void SendPlayerForgedPosition(GamePlayer player)
{
using (GSUDPPacketOut pak = new GSUDPPacketOut(GetPacketCode(eServerPackets.PlayerPosition)))
{
// PID
pak.WriteShort((ushort)player.Client.SessionID);
// Write Speed
if (player.Steed != null && player.Steed.ObjectState == GameObject.eObjectState.Active)
{
player.Heading = player.Steed.Heading;
pak.WriteShort(0x1800);
}
else
{
short rSpeed = player.CurrentSpeed;
if (player.IsIncapacitated)
{
rSpeed = 0;
}
ushort content;
if (rSpeed < 0)
{
content = (ushort)((Math.Abs(rSpeed) > 511 ? 511 : Math.Abs(rSpeed)) + 0x200);
}
else
{
content = (ushort)(rSpeed > 511 ? 511 : rSpeed);
}
if (!player.IsAlive)
{
content += 5 << 10;
}
else
{
ushort state = 0;
if (player.IsSwimming)
{
state = 1;
}
if (player.IsClimbing)
{
state = 7;
}
if (player.IsSitting)
{
state = 4;
}
content += (ushort)(state << 10);
}
content += (ushort)(player.IsStrafing ? 1 << 13 : 0 << 13);
pak.WriteShort(content);
}
// Get Off Corrd
var offX = player.Position.X - player.CurrentZone.XOffset;
var offY = player.Position.Y - player.CurrentZone.YOffset;
pak.WriteShort((ushort)player.Position.Z);
pak.WriteShort((ushort)offX);
pak.WriteShort((ushort)offY);
// Write Zone
pak.WriteShort(player.CurrentZone.ZoneSkinID);
// Copy Heading && Falling or Write Steed
if (player.Steed != null && player.Steed.ObjectState == GameObject.eObjectState.Active)
{
pak.WriteShort((ushort)player.Steed.ObjectID);
pak.WriteShort((ushort)player.Steed.RiderSlot(player));
}
else
{
// Set Player always on ground, this is an "anti lag" packet
ushort contenthead = (ushort)(player.Heading + (true ? 0x1000 : 0));
pak.WriteShort(contenthead);
// No Fall Speed.
pak.WriteShort(0);
}
// Write Flags
byte flagcontent = 0;
if (player.IsDiving)
{
flagcontent += 0x04;
}
if (player.IsWireframe)
{
flagcontent += 0x01;
}
if (player.IsStealthed)
{
flagcontent += 0x02;
}
if (player.IsTorchLighted)
{
flagcontent += 0x80;
}
pak.WriteByte(flagcontent);
// Write health + Attack
byte healthcontent = (byte)(player.HealthPercent + (player.AttackState ? 0x80 : 0));
pak.WriteByte(healthcontent);
// Write Remainings.
pak.WriteByte(player.ManaPercent);
pak.WriteByte(player.EndurancePercent);
pak.FillString(player.CharacterClass.Name, 32);
pak.WriteByte((byte)(player.RPFlag ? 1 : 0));
pak.WriteByte(0); // send last byte for 190+ packets
SendUDP(pak);
}
// Update Cache
m_gameClient.GameObjectUpdateArray[new Tuple <ushort, ushort>(player.CurrentRegionID, (ushort)player.ObjectID)] = GameTimer.GetTickCount();
}
/// <summary>
/// Send the UDP packet without changing any portion of the packet
/// </summary>
/// <param name="packet">Packet to be sent</param>
public void SendUDPRaw(GSUDPPacketOut packet)
{
m_gameClient.PacketProcessor.SendUDPRaw(packet);
}
