void HandleSetTradeItem(SetTradeItem setTradeItem)
{
TradeData my_trade = GetPlayer().GetTradeData();
if (my_trade == null)
{
return;
}
TradeStatusPkt info = new TradeStatusPkt();
// invalid slot number
if (setTradeItem.TradeSlot >= (byte)TradeSlots.Count)
{
info.Status = TradeStatus.Cancelled;
SendTradeStatus(info);
return;
}
// check cheating, can't fail with correct client operations
Item item = GetPlayer().GetItemByPos(setTradeItem.PackSlot, setTradeItem.ItemSlotInPack);
if (!item || (setTradeItem.TradeSlot != (byte)TradeSlots.NonTraded && !item.CanBeTraded(false, true)))
{
info.Status = TradeStatus.Cancelled;
SendTradeStatus(info);
return;
}
ObjectGuid iGUID = item.GetGUID();
// prevent place single item into many trade slots using cheating and client bugs
if (my_trade.HasItem(iGUID))
{
// cheating attempt
info.Status = TradeStatus.Cancelled;
SendTradeStatus(info);
return;
}
my_trade.UpdateClientStateIndex();
if (setTradeItem.TradeSlot != (byte)TradeSlots.NonTraded && item.IsBindedNotWith(my_trade.GetTrader()))
{
info.Status = TradeStatus.NotOnTaplist;
info.TradeSlot = setTradeItem.TradeSlot;
SendTradeStatus(info);
return;
}
my_trade.SetItem((TradeSlots)setTradeItem.TradeSlot, item);
}