120 lines
3.7 KiB
Java
120 lines
3.7 KiB
Java
/*
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* WorldGuard, a suite of tools for Minecraft
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* Copyright (C) sk89q <http://www.sk89q.com>
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* Copyright (C) WorldGuard team and contributors
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.sk89q.worldguard.bukkit.util;
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import com.google.common.base.Function;
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import org.bukkit.Bukkit;
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import org.bukkit.entity.Player;
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import java.lang.reflect.Method;
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import java.util.UUID;
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import javax.annotation.Nullable;
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public final class InteropUtils {
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@Nullable
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private static final Class<?> forgeFakePlayerClass;
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// This UUID is from Minecraft Forge (see FakePlayerFactory)
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private static final UUID forgeFakePlayerUuid = UUID.fromString("41c82c87-7afb-4024-ba57-13d2c99cae77");
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private static final PlayerHandleFunction playerHandleFunction;
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static {
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forgeFakePlayerClass = findClass("net.minecraftforge.common.util.FakePlayer");
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PlayerHandleFunction function;
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try {
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function = new PlayerHandleFunction();
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} catch (Exception e) {
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function = null;
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}
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playerHandleFunction = function;
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}
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@Nullable
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private static Class<?> findClass(String name) {
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try {
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return Class.forName(name);
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} catch (Throwable ignored) {
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return null;
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}
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}
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private InteropUtils() {
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}
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/**
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* Return whether the given player is a fake player.
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*
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* @param player the player
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* @return true if a fake player
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*/
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public static boolean isFakePlayer(Player player) {
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UUID uuid = player.getUniqueId();
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String name = player.getName();
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if (Entities.isNPC(player)) {
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return true;
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}
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if (uuid.equals(forgeFakePlayerUuid)) {
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return true;
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}
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if (forgeFakePlayerClass != null && playerHandleFunction != null) {
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Object handle = playerHandleFunction.apply(player);
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if (handle != null) {
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if (forgeFakePlayerClass.isAssignableFrom(handle.getClass())) {
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return true;
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}
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}
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}
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if (name.length() >= 3 && name.charAt(0) == '[' && name.charAt(name.length() - 1) == ']') {
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return true;
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}
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return false;
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}
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private static final class PlayerHandleFunction implements Function<Object, Object> {
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private final Class<?> craftPlayerClass;
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private final Method getHandleMethod;
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private PlayerHandleFunction() throws NoSuchMethodException, ClassNotFoundException {
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craftPlayerClass = Class.forName(Bukkit.getServer().getClass().getCanonicalName().replaceAll("CraftServer$", "entity.CraftPlayer"));
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getHandleMethod = craftPlayerClass.getMethod("getHandle");
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}
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@Nullable
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@Override
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public Object apply(Object o) {
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if (craftPlayerClass.isAssignableFrom(o.getClass())) {
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try {
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return getHandleMethod.invoke(o);
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} catch (Throwable ignored) {
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}
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}
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return null;
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}
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}
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}
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