public static void PollInfo(NetState ns, CircularBufferReader reader, ref int packetLength)
{
var version = reader.ReadByte();
if (_token != null)
{
unsafe {
byte *tok = stackalloc byte[_token.Length];
var span = new Span <byte>(tok, _token.Length);
reader.Read(span);
if (!span.SequenceEqual(_token))
{
ns.Disconnect("Invalid token sent for ConnectUO");
return;
}
}
}
ns.LogInfo($"ConnectUO (v{version}) is requesting stats.");
if (version > ConnectUOProtocolVersion)
{
Utility.PushColor(ConsoleColor.Yellow);
ns.LogInfo("Warning! ConnectUO (v{version}) is newer than what is supported.");
Utility.PopColor();
}
ns.SendServerPollInfo();
}
public static void EncodedCommand(NetState state, CircularBufferReader reader, ref int packetLength)
{
var e = World.FindEntity((Serial)reader.ReadUInt32());
int packetId = reader.ReadUInt16();
var ph = IncomingPackets.GetEncodedHandler(packetId);
if (ph == null)
{
reader.Trace(state);
return;
}
if (ph.Ingame && state.Mobile == null)
{
state.LogInfo(
"Sent in-game packet (0xD7x{0:X2}) before being attached to a mobile",
packetId
);
state.Disconnect($"Sent in-game packet (0xD7x{packetId:X2}) before being attached to a mobile.");
}
else if (ph.Ingame && state.Mobile.Deleted)
{
state.Disconnect($"Sent in-game packet(0xD7x{packetId:X2}) but mobile is deleted.");
}
else
{
ph.OnReceive(state, e, new EncodedReader(reader));
}
}
public static void DisplayGumpResponse(NetState state, CircularBufferReader reader, ref int packetLength)
{
var serial = (Serial)reader.ReadUInt32();
var typeID = reader.ReadInt32();
var buttonID = reader.ReadInt32();
foreach (var gump in state.Gumps)
{
if (gump.Serial != serial || gump.TypeID != typeID)
{
continue;
}
var buttonExists = buttonID == 0; // 0 is always 'close'
if (!buttonExists)
{
foreach (var e in gump.Entries)
{
if (e is GumpButton button && button.ButtonID == buttonID)
{
buttonExists = true;
break;
}
if (e is GumpImageTileButton tileButton && tileButton.ButtonID == buttonID)
{
buttonExists = true;
break;
}
}
}
if (!buttonExists)
{
state.LogInfo("Invalid gump response, disconnecting...");
var exception = new InvalidGumpResponseException($"Button {buttonID} doesn't exist");
exception.SetStackTrace(new StackTrace());
NetState.TraceException(exception);
state.Mobile?.SendMessage("Invalid gump response.");
// state.Disconnect("Invalid gump response.");
return;
}
var switchCount = reader.ReadInt32();
if (switchCount < 0 || switchCount > gump.m_Switches)
{
state.LogInfo("Invalid gump response, disconnecting...");
var exception = new InvalidGumpResponseException($"Bad switch count {switchCount}");
exception.SetStackTrace(new StackTrace());
NetState.TraceException(exception);
state.Mobile?.SendMessage("Invalid gump response.");
// state.Disconnect("Invalid gump response.");
return;
}
var switches = new int[switchCount];
for (var i = 0; i < switches.Length; ++i)
{
switches[i] = reader.ReadInt32();
}
var textCount = reader.ReadInt32();
if (textCount < 0 || textCount > gump.m_TextEntries)
{
state.LogInfo("Invalid gump response, disconnecting...");
var exception = new InvalidGumpResponseException($"Bad text entry count {textCount}");
exception.SetStackTrace(new StackTrace());
NetState.TraceException(exception);
state.Mobile?.SendMessage("Invalid gump response.");
// state.Disconnect("Invalid gump response.");
return;
}
var textEntries = new TextRelay[textCount];
for (var i = 0; i < textEntries.Length; ++i)
{
int entryID = reader.ReadUInt16();
int textLength = reader.ReadUInt16();
if (textLength > 239)
{
state.LogInfo("Invalid gump response, disconnecting...");
var exception = new InvalidGumpResponseException($"Text entry {i} is too long ({textLength})");
exception.SetStackTrace(new StackTrace());
NetState.TraceException(exception);
state.Mobile?.SendMessage("Invalid gump response.");
// state.Disconnect("Invalid gump response.");
return;
}
var text = reader.ReadBigUniSafe(textLength);
textEntries[i] = new TextRelay(entryID, text);
}
state.RemoveGump(gump);
var prof = GumpProfile.Acquire(gump.GetType());
prof?.Start();
gump.OnResponse(state, new RelayInfo(buttonID, switches, textEntries));
prof?.Finish();
return;
}
if (typeID == 461)
{
// Virtue gump
var switchCount = reader.Remaining >= 4 ? reader.ReadInt32() : 0;
if (buttonID == 1 && switchCount > 0)
{
var beheld = World.FindMobile((Serial)reader.ReadUInt32());
if (beheld != null)
{
EventSink.InvokeVirtueGumpRequest(state.Mobile, beheld);
}
}
else
{
var beheld = World.FindMobile(serial);
if (beheld != null)
{
EventSink.InvokeVirtueItemRequest(state.Mobile, beheld, buttonID);
}
}
}
}
public static void TextCommand(NetState state, CircularBufferReader reader, ref int packetLength)
{
var from = state.Mobile;
if (from == null)
{
return;
}
int type = reader.ReadByte();
var command = reader.ReadAscii();
switch (type)
{
case 0xC7: // Animate
{
EventSink.InvokeAnimateRequest(from, command);
break;
}
case 0x24: // Use skill
{
var tokenizer = command.Tokenize(' ');
if (!tokenizer.MoveNext() || !int.TryParse(tokenizer.Current, out var skillIndex))
{
break;
}
Skills.UseSkill(from, skillIndex);
break;
}
case 0x43: // Open spellbook
{
if (!int.TryParse(command, out var booktype))
{
booktype = 1;
}
EventSink.InvokeOpenSpellbookRequest(from, booktype);
break;
}
case 0x27: // Cast spell from book
{
var tokenizer = command.Tokenize(' ');
var spellID = (tokenizer.MoveNext() ? Utility.ToInt32(tokenizer.Current) : 0) - 1;
var serial = tokenizer.MoveNext() ? (Serial)Utility.ToUInt32(tokenizer.Current) : Serial.MinusOne;
EventSink.InvokeCastSpellRequest(from, spellID, World.FindItem(serial));
break;
}
case 0x58: // Open door
{
EventSink.InvokeOpenDoorMacroUsed(from);
break;
}
case 0x56: // Cast spell from macro
{
var spellID = Utility.ToInt32(command) - 1;
EventSink.InvokeCastSpellRequest(from, spellID, null);
break;
}
case 0xF4: // Invoke virtues from macro
{
var virtueID = Utility.ToInt32(command) - 1;
EventSink.InvokeVirtueMacroRequest(from, virtueID);
break;
}
case 0x2F: // Old scroll double click
{
/*
* This command is still sent for items 0xEF3 - 0xEF9
*
* Command is one of three, depending on the item ID of the scroll:
* - [scroll serial]
* - [scroll serial] [target serial]
* - [scroll serial] [x] [y] [z]
*/
break;
}
default:
{
state.LogInfo("Unknown text-command type 0x{0:X2}: {1}", state, type, command);
break;
}
}
}