/*
* ItemDisguise - A simple Bukkit plugin that illustrates how to use ProtocolLib.
* Copyright (C) 2012 Kristian S. Stangeland
*
* This program is free software; you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with this program;
* if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA
*/
package com.comphenix.itemdisguise;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.bukkit.Server;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.inventory.ItemStack;
import org.bukkit.plugin.java.JavaPlugin;
import com.comphenix.protocol.ProtocolManager;
import com.comphenix.protocol.events.ConnectionSide;
import com.comphenix.protocol.events.PacketAdapter;
import com.comphenix.protocol.events.PacketContainer;
import com.comphenix.protocol.events.PacketEvent;
import com.comphenix.protocol.reflect.FieldAccessException;
public class HideEnchantmentsListener {
private final Server server;
private final Logger logger;
public HideEnchantmentsListener(Server server, Logger logger) {
this.server = server;
this.logger = logger;
}
public void addListener(ProtocolManager protocolManager, JavaPlugin plugin) {
// Hide all enchantments
protocolManager.addPacketListener(new PacketAdapter(plugin, ConnectionSide.SERVER_SIDE, 0x67, 0x68, 0x3E) {
@Override
public void onPacketSending(PacketEvent event) {
PacketContainer packet = event.getPacket();
try {
// Item packets
switch (event.getPacketID()) {
case 0x67: // Set slot
removeEnchantments(packet.getItemModifier().read(0));
break;
case 0x68: // Set Window Items
ItemStack[] elements = packet.getItemArrayModifier().read(0);
for (int i = 0; i < elements.length; i++) {
if (elements[i] != null) {
removeEnchantments(elements[i]);
}
}
break;
case 0x3E: // Sound effect
event.setCancelled(true);
break;
}
} catch (FieldAccessException e) {
logger.log(Level.SEVERE, "Couldn't access field.", e);
}
}
});
// Censor
protocolManager.addPacketListener(new PacketAdapter(plugin, ConnectionSide.CLIENT_SIDE, 0x3) {
@Override
public void onPacketReceiving(PacketEvent event) {
if (event.getPacketID() == 0x3) {
try {
String message = event.getPacket().
getSpecificModifier(String.class).read(0);
if (message.contains("shit") || message.contains("fuck")) {
event.setCancelled(true);
event.getPlayer().sendMessage("Bad manners!");
}
} catch (FieldAccessException e) {
logger.log(Level.SEVERE, "Couldn't access field.", e);
}
}
}
});
}
public Server getServer() {
return server;
}
public void removeListener(ProtocolManager protocolManager, JavaPlugin plugin) {
// Just remove every adapter with this plugin
protocolManager.removePacketListeners(plugin);
}
private void removeEnchantments(ItemStack stack) {
if (stack == null)
return;
Object[] copy = stack.getEnchantments().keySet().toArray();
for (Object enchantment : copy) {
stack.removeEnchantment((Enchantment) enchantment);
}
}
}