geforkt von SteamWar/PersistentBungeeCore
Merge pull request 'More secure softreload implementation' (#26) from secure-softreload into master
Reviewed-on: SteamWar/PersistentBungeeCore#26 Reviewed-by: YoyoNow <jwsteam@nidido.de>
Dieser Commit ist enthalten in:
Commit
af89693438
@ -19,39 +19,38 @@
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package de.steamwar.bungeecore;
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package de.steamwar.bungeecore;
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import de.steamwar.persistent.Reflection;
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import net.md_5.bungee.api.CommandSender;
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import net.md_5.bungee.api.CommandSender;
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import net.md_5.bungee.api.bungeepluginmanager.ModifiedPluginEventBus;
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import de.steamwar.persistent.ModifiedPluginEventBus;
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import net.md_5.bungee.api.bungeepluginmanager.PluginUtils;
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import de.steamwar.persistent.PluginUtils;
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import net.md_5.bungee.api.bungeepluginmanager.ReflectionUtils;
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import net.md_5.bungee.api.chat.TextComponent;
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import net.md_5.bungee.api.plugin.Command;
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import net.md_5.bungee.api.plugin.Command;
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import net.md_5.bungee.api.plugin.Plugin;
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import net.md_5.bungee.api.plugin.Plugin;
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import net.md_5.bungee.api.plugin.PluginDescription;
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import net.md_5.bungee.api.plugin.PluginManager;
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import net.md_5.bungee.api.plugin.PluginManager;
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import net.md_5.bungee.event.EventBus;
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import java.io.File;
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import java.io.File;
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import java.util.Map;
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import java.util.logging.Level;
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public class Persistent extends Plugin {
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public class Persistent extends Plugin {
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private static Persistent instance;
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public static final String PREFIX = "§eSteam§8War» ";
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private static String chatPrefix = "";
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private static String lobbyServer = "";
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private static final Reflection.FieldAccessor<EventBus> eventBus = Reflection.getField(PluginManager.class, "eventBus", EventBus.class);
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@Override
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@Override
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public void onLoad() {
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public void onLoad() {
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ReflectionUtils.setFieldValue(getProxy().getPluginManager(), "eventBus", new ModifiedPluginEventBus());
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eventBus.set(getProxy().getPluginManager(), new ModifiedPluginEventBus());
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}
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}
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@Override
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@Override
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public void onEnable(){
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public void onEnable(){
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instance = this;
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getProxy().getPluginManager().registerCommand(this, new Command("softreload", "bungeecore.softreload") {
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getProxy().getPluginManager().registerCommand(this, new Command("softreload", "bungeecore.softreload"){
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@Override
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@Override
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public void execute(CommandSender sender, String[] args) {
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public void execute(CommandSender sender, String[] args) {
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// Copied from https://www.spigotmc.org/resources/bungeepluginmanager-manage-your-bungee-plugin-at-runtime.63861/
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softreload();
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PluginManager pluginManager = getProxy().getPluginManager();
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Plugin bungeecore = pluginManager.getPlugin("BungeeCore");
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PluginUtils.unloadPlugin(bungeecore);
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PluginUtils.loadPlugin(new File(getProxy().getPluginsFolder(), "BungeeCore.jar"));
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}
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}
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});
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});
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}
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}
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@ -61,23 +60,30 @@ public class Persistent extends Plugin {
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Subserver.shutdown();
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Subserver.shutdown();
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}
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}
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public static void setLobbyServer(String lobbyServer) {
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public void softreload() {
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Persistent.lobbyServer = lobbyServer;
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Map<String, Command> commandMap = PluginUtils.CommandMap.get(getProxy().getPluginManager());
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Map<String, Plugin> plugins = PluginUtils.Plugins.get(getProxy().getPluginManager());
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Object libraryLoader = PluginUtils.LibraryLoader.get(getProxy().getPluginManager());
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PluginDescription desc = PluginUtils.loadDescription(getProxy().getPluginManager(), new File(getProxy().getPluginsFolder(), "BungeeCore.jar"));
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getProxy().getScheduler().runAsync(this, () -> {
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getProxy().broadcast(TextComponent.fromLegacyText(PREFIX + "§eNetwork update is starting§8."));
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try {
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PluginUtils.unloadPlugin(getProxy(), commandMap, plugins, getProxy().getPluginManager().getPlugin("BungeeCore"));
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PluginUtils.loadPlugin(plugins, libraryLoader, desc);
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} catch (Throwable t) {
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getLogger().log(Level.SEVERE, "Errors during softreload", t);
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getProxy().broadcast(TextComponent.fromLegacyText(PREFIX + "§cNetwork update failed§8, §cexpect network restart soon§8."));
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return;
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}
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}
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public static void setChatPrefix(String prefix){
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getProxy().broadcast(TextComponent.fromLegacyText(PREFIX + "§eNetwork update complete§8."));
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chatPrefix = prefix;
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});
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}
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}
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static String getLobbyServer() {
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@Deprecated
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return lobbyServer;
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public static void setLobbyServer(String lobbyServer) {}
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}
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static String getPrefix(){
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@Deprecated
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return chatPrefix;
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public static void setChatPrefix(String prefix) {}
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}
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static Persistent getInstance() {
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return instance;
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}
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}
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}
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@ -123,7 +123,7 @@ public class Subserver implements Runnable {
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public void sendPlayer(ProxiedPlayer p){
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public void sendPlayer(ProxiedPlayer p){
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if(!started){
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if(!started){
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p.sendMessage(Persistent.getPrefix() + "§7Der Server wird gestartet, einen Moment bitte...");
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p.sendMessage(Persistent.PREFIX + "§7Starting server, please wait...");
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cachedPlayers.add(p);
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cachedPlayers.add(p);
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}else{
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}else{
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p.connect(server);
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p.connect(server);
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@ -171,9 +171,9 @@ public class Subserver implements Runnable {
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private void fatalError(){
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private void fatalError(){
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for(ProxiedPlayer cached : cachedPlayers)
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for(ProxiedPlayer cached : cachedPlayers)
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cached.sendMessage(Persistent.getPrefix() + "§cUnerwarteter Fehler beim Serverstart.");
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cached.sendMessage(Persistent.PREFIX + "§cUnexpected error during server startup.");
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for(ProxiedPlayer player : server.getPlayers())
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for(ProxiedPlayer player : server.getPlayers())
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player.sendMessage(Persistent.getPrefix() + "§cUnerwarteter Fehler im Server.");
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player.sendMessage(Persistent.PREFIX + "§cLost connection to server.");
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}
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}
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private void sendProgress(int progress){
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private void sendProgress(int progress){
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@ -1,23 +1,23 @@
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/*
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/*
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This file is a part of the SteamWar software.
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* This file is a part of the SteamWar software.
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*
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* Copyright (C) 2023 SteamWar.de-Serverteam
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the 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,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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Copyright (C) 2020 SteamWar.de-Serverteam
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package de.steamwar.persistent;
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package net.md_5.bungee.api.bungeepluginmanager;
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import net.md_5.bungee.api.event.AsyncEvent;
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import net.md_5.bungee.api.event.AsyncEvent;
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import net.md_5.bungee.api.plugin.Plugin;
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import net.md_5.bungee.api.plugin.Plugin;
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@ -33,7 +33,7 @@ public final class ModifiedPluginEventBus extends EventBus {
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private static final Set<AsyncEvent<?>> UNCOMPLETED_EVENTS = Collections.newSetFromMap(new WeakHashMap<>());
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private static final Set<AsyncEvent<?>> UNCOMPLETED_EVENTS = Collections.newSetFromMap(new WeakHashMap<>());
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private static final Object LOCK = new Object();
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private static final Object LOCK = new Object();
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static void completeIntents(Plugin plugin) {
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public static void completeIntents(Plugin plugin) {
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synchronized (LOCK) {
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synchronized (LOCK) {
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UNCOMPLETED_EVENTS.forEach(event -> {
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UNCOMPLETED_EVENTS.forEach(event -> {
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try {
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try {
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183
src/de/steamwar/persistent/PluginUtils.java
Normale Datei
183
src/de/steamwar/persistent/PluginUtils.java
Normale Datei
@ -0,0 +1,183 @@
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/*
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* This file is a part of the SteamWar software.
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*
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* Copyright (C) 2023 SteamWar.de-Serverteam
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*
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* This program is free software: you can redistribute it and/or modify
|
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|
* it under the terms of the GNU Affero General Public License as published by
|
||||||
|
* the 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,
|
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|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU Affero General Public License for more details.
|
||||||
|
*
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|
* You should have received a copy of the GNU Affero General Public License
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||||||
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
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|
*/
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package de.steamwar.persistent;
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import net.md_5.bungee.api.ProxyServer;
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import net.md_5.bungee.api.plugin.Command;
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import net.md_5.bungee.api.plugin.Plugin;
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import net.md_5.bungee.api.plugin.PluginDescription;
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import net.md_5.bungee.api.plugin.PluginManager;
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import org.yaml.snakeyaml.Yaml;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.URLClassLoader;
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import java.util.Map;
|
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import java.util.ResourceBundle;
|
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|
import java.util.Set;
|
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|
import java.util.concurrent.ExecutorService;
|
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|
import java.util.jar.JarEntry;
|
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import java.util.jar.JarFile;
|
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|
import java.util.logging.Handler;
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|
import java.util.logging.Level;
|
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|
|
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|
public final class PluginUtils {
|
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|
//Adapted from https://github.com/Shevchik/BungeePluginManager/blob/master/src/bungeepluginmanager/PluginUtils.java
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||||||
|
|
||||||
|
private static final Class<?> LibraryLoaderClass = Reflection.getClass("net.md_5.bungee.api.plugin.LibraryLoader");
|
||||||
|
private static final Reflection.MethodInvoker createLoader = Reflection.getTypedMethod(LibraryLoaderClass, "createLoader", ClassLoader.class, PluginDescription.class);
|
||||||
|
|
||||||
|
public static final Reflection.FieldAccessor<Map> CommandMap = Reflection.getField(PluginManager.class, "commandMap", Map.class);
|
||||||
|
public static final Reflection.FieldAccessor<Map> Plugins = Reflection.getField(PluginManager.class, "plugins", Map.class);
|
||||||
|
public static final Reflection.FieldAccessor<Yaml> Yaml = Reflection.getField(PluginManager.class, "yaml", Yaml.class);
|
||||||
|
public static final Reflection.FieldAccessor<?> LibraryLoader = Reflection.getField(PluginManager.class, "libraryLoader", LibraryLoaderClass);
|
||||||
|
public static final Reflection.FieldAccessor<ExecutorService> Service = Reflection.getField(Plugin.class, "service", ExecutorService.class);
|
||||||
|
|
||||||
|
private static final Class<?> PluginClassLoaderClass = Reflection.getClass("net.md_5.bungee.api.plugin.PluginClassloader");
|
||||||
|
private static final Reflection.ConstructorInvoker NewPluginClassLoader = Reflection.getConstructor(PluginClassLoaderClass, ProxyServer.class, PluginDescription.class, File.class, ClassLoader.class);
|
||||||
|
|
||||||
|
private static final Reflection.MethodInvoker init = Reflection.getMethod(Plugin.class, "init", ProxyServer.class, PluginDescription.class);
|
||||||
|
|
||||||
|
private static final Set<?> allLoaders = Reflection.getField(PluginClassLoaderClass, "allLoaders", Set.class).get(null);
|
||||||
|
|
||||||
|
private PluginUtils() {}
|
||||||
|
|
||||||
|
public static void unloadPlugin(ProxyServer proxy, Map<String, Command> commandMap, Map<String, Plugin> plugins, Plugin plugin) {
|
||||||
|
IllegalStateException error = new IllegalStateException();
|
||||||
|
|
||||||
|
PluginManager pluginManager = proxy.getPluginManager();
|
||||||
|
ClassLoader pluginClassLoader = plugin.getClass().getClassLoader();
|
||||||
|
|
||||||
|
try {
|
||||||
|
plugin.onDisable();
|
||||||
|
} catch (Exception e) {
|
||||||
|
proxy.getLogger().log(Level.SEVERE, "Exception on disable", e);
|
||||||
|
}
|
||||||
|
|
||||||
|
//unregister event handlers
|
||||||
|
pluginManager.unregisterListeners(plugin);
|
||||||
|
|
||||||
|
//unregister commands
|
||||||
|
pluginManager.unregisterCommands(plugin);
|
||||||
|
//remove incorrectly registered plugins
|
||||||
|
commandMap.entrySet().removeIf(entry -> entry.getValue().getClass().getClassLoader() == pluginClassLoader);
|
||||||
|
|
||||||
|
//cancel scheduled tasks
|
||||||
|
proxy.getScheduler().cancel(plugin);
|
||||||
|
|
||||||
|
//finish uncompleted intents
|
||||||
|
ModifiedPluginEventBus.completeIntents(plugin);
|
||||||
|
|
||||||
|
//shutdown internal executor
|
||||||
|
ExecutorService service = Service.get(plugin);
|
||||||
|
if(service != null)
|
||||||
|
service.shutdownNow();
|
||||||
|
|
||||||
|
//stop all still active threads that belong to a plugin
|
||||||
|
for(Thread thread : Thread.getAllStackTraces().keySet()) {
|
||||||
|
if(thread.getClass().getClassLoader() != pluginClassLoader)
|
||||||
|
continue;
|
||||||
|
|
||||||
|
thread.interrupt();
|
||||||
|
try {
|
||||||
|
thread.join(100);
|
||||||
|
} catch (InterruptedException t) {
|
||||||
|
Thread.currentThread().interrupt();
|
||||||
|
}
|
||||||
|
|
||||||
|
if (thread.isAlive())
|
||||||
|
proxy.getLogger().log(Level.WARNING, () -> "Could not stop thread " + thread.getName() + " of plugin " + plugin.getDescription().getName() + ". Still running");
|
||||||
|
}
|
||||||
|
|
||||||
|
//Clear resource bundle cache
|
||||||
|
ResourceBundle.clearCache(pluginClassLoader);
|
||||||
|
|
||||||
|
//close all log handlers
|
||||||
|
for (Handler handler : plugin.getLogger().getHandlers()) {
|
||||||
|
handler.close();
|
||||||
|
}
|
||||||
|
|
||||||
|
//cleanup internal listener and command maps from plugin refs
|
||||||
|
plugins.values().remove(plugin);
|
||||||
|
|
||||||
|
// Remove classloader
|
||||||
|
allLoaders.remove(pluginClassLoader);
|
||||||
|
|
||||||
|
//close classloader
|
||||||
|
if (pluginClassLoader instanceof URLClassLoader) {
|
||||||
|
try {
|
||||||
|
((URLClassLoader) pluginClassLoader).close();
|
||||||
|
} catch (Exception e) {
|
||||||
|
proxy.getLogger().log(Level.SEVERE, "Exception while closing the classloader", e);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if(error.getSuppressed().length > 0) {
|
||||||
|
throw error;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public static PluginDescription loadDescription(PluginManager pluginManager, File pluginFile) {
|
||||||
|
PluginDescription desc;
|
||||||
|
try (JarFile jar = new JarFile(pluginFile)) {
|
||||||
|
JarEntry pdf = jar.getJarEntry("bungee.yml");
|
||||||
|
|
||||||
|
if (pdf == null) {
|
||||||
|
pdf = jar.getJarEntry("plugin.yml");
|
||||||
|
}
|
||||||
|
|
||||||
|
try (InputStream in = jar.getInputStream(pdf)) {
|
||||||
|
//load description
|
||||||
|
desc = PluginUtils.Yaml.get(pluginManager).loadAs(in, PluginDescription.class);
|
||||||
|
}
|
||||||
|
} catch (IOException e) {
|
||||||
|
throw new IllegalStateException(e);
|
||||||
|
}
|
||||||
|
desc.setFile(pluginFile);
|
||||||
|
|
||||||
|
//check depends
|
||||||
|
Map<String, Plugin> pluginsMap = PluginUtils.Plugins.get(pluginManager);
|
||||||
|
for (String dependency : desc.getDepends()) {
|
||||||
|
if (!pluginsMap.containsKey(dependency)) {
|
||||||
|
throw new IllegalStateException(dependency +" (required by " + desc.getName() + ") is unavailable");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return desc;
|
||||||
|
}
|
||||||
|
|
||||||
|
public static void loadPlugin(Map<String, Plugin> plugins, Object libraryLoader, PluginDescription desc) {
|
||||||
|
URLClassLoader loader = (URLClassLoader)NewPluginClassLoader.invoke(ProxyServer.getInstance(), desc, desc.getFile(), libraryLoader != null ? createLoader.invoke(libraryLoader, desc) : null);
|
||||||
|
|
||||||
|
Plugin plugin;
|
||||||
|
try {
|
||||||
|
Class<?> mainclazz = loader.loadClass(desc.getMain());
|
||||||
|
plugin = (Plugin) Reflection.newInstance(mainclazz);
|
||||||
|
} catch (ClassNotFoundException e) {
|
||||||
|
throw new IllegalStateException(e);
|
||||||
|
}
|
||||||
|
init.invoke(plugin, ProxyServer.getInstance(), desc);
|
||||||
|
|
||||||
|
plugins.put(desc.getName(), plugin);
|
||||||
|
plugin.onLoad();
|
||||||
|
plugin.onEnable();
|
||||||
|
}
|
||||||
|
}
|
||||||
342
src/de/steamwar/persistent/Reflection.java
Normale Datei
342
src/de/steamwar/persistent/Reflection.java
Normale Datei
@ -0,0 +1,342 @@
|
|||||||
|
package de.steamwar.persistent;
|
||||||
|
|
||||||
|
import java.lang.reflect.*;
|
||||||
|
import java.util.Arrays;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* An utility class that simplifies reflection in Bukkit plugins.
|
||||||
|
*
|
||||||
|
* @author Kristian
|
||||||
|
*/
|
||||||
|
public final class Reflection {
|
||||||
|
/**
|
||||||
|
* An interface for invoking a specific constructor.
|
||||||
|
*/
|
||||||
|
public interface ConstructorInvoker {
|
||||||
|
/**
|
||||||
|
* Invoke a constructor for a specific class.
|
||||||
|
*
|
||||||
|
* @param arguments - the arguments to pass to the constructor.
|
||||||
|
* @return The constructed object.
|
||||||
|
*/
|
||||||
|
Object invoke(Object... arguments);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* An interface for invoking a specific method.
|
||||||
|
*/
|
||||||
|
public interface MethodInvoker {
|
||||||
|
/**
|
||||||
|
* Invoke a method on a specific target object.
|
||||||
|
*
|
||||||
|
* @param target - the target object, or NULL for a static method.
|
||||||
|
* @param arguments - the arguments to pass to the method.
|
||||||
|
* @return The return value, or NULL if is void.
|
||||||
|
*/
|
||||||
|
Object invoke(Object target, Object... arguments);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* An interface for retrieving the field content.
|
||||||
|
*
|
||||||
|
* @param <T> - field type.
|
||||||
|
*/
|
||||||
|
public interface FieldAccessor<T> {
|
||||||
|
/**
|
||||||
|
* Retrieve the content of a field.
|
||||||
|
*
|
||||||
|
* @param target - the target object, or NULL for a static field.
|
||||||
|
* @return The value of the field.
|
||||||
|
*/
|
||||||
|
T get(Object target);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Set the content of a field.
|
||||||
|
*
|
||||||
|
* @param target - the target object, or NULL for a static field.
|
||||||
|
* @param value - the new value of the field.
|
||||||
|
*/
|
||||||
|
void set(Object target, Object value);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Determine if the given object has this field.
|
||||||
|
*
|
||||||
|
* @param target - the object to test.
|
||||||
|
* @return TRUE if it does, FALSE otherwise.
|
||||||
|
*/
|
||||||
|
boolean hasField(Object target);
|
||||||
|
}
|
||||||
|
|
||||||
|
private Reflection() {
|
||||||
|
// Seal class
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Retrieve a field accessor for a specific field type and name.
|
||||||
|
*
|
||||||
|
* @param target - the target type.
|
||||||
|
* @param name - the name of the field, or NULL to ignore.
|
||||||
|
* @param fieldType - a compatible field type.
|
||||||
|
* @return The field accessor.
|
||||||
|
*/
|
||||||
|
public static <T> FieldAccessor<T> getField(Class<?> target, String name, Class<T> fieldType) {
|
||||||
|
return getField(target, name, fieldType, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Retrieve a field accessor for a specific field type and name.
|
||||||
|
*
|
||||||
|
* @param className - lookup name of the class, see {@link #getClass(String)}.
|
||||||
|
* @param name - the name of the field, or NULL to ignore.
|
||||||
|
* @param fieldType - a compatible field type.
|
||||||
|
* @return The field accessor.
|
||||||
|
*/
|
||||||
|
public static <T> FieldAccessor<T> getField(String className, String name, Class<T> fieldType) {
|
||||||
|
return getField(getClass(className), name, fieldType, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Retrieve a field accessor for a specific field type and name.
|
||||||
|
*
|
||||||
|
* @param target - the target type.
|
||||||
|
* @param fieldType - a compatible field type.
|
||||||
|
* @param index - the number of compatible fields to skip.
|
||||||
|
* @return The field accessor.
|
||||||
|
*/
|
||||||
|
public static <T> FieldAccessor<T> getField(Class<?> target, Class<T> fieldType, int index) {
|
||||||
|
return getField(target, null, fieldType, index);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Retrieve a field accessor for a specific field type and name.
|
||||||
|
*
|
||||||
|
* @param className - lookup name of the class, see {@link #getClass(String)}.
|
||||||
|
* @param fieldType - a compatible field type.
|
||||||
|
* @param index - the number of compatible fields to skip.
|
||||||
|
* @return The field accessor.
|
||||||
|
*/
|
||||||
|
public static <T> FieldAccessor<T> getField(String className, Class<T> fieldType, int index) {
|
||||||
|
return getField(getClass(className), fieldType, index);
|
||||||
|
}
|
||||||
|
|
||||||
|
public static <T> FieldAccessor<T> getField(Class<?> target, Class<T> fieldType, int index, Class<?>... parameters) {
|
||||||
|
return getField(target, null, fieldType, index, parameters);
|
||||||
|
}
|
||||||
|
|
||||||
|
private static <T> FieldAccessor<T> getField(Class<?> target, String name, Class<T> fieldType, int index, Class<?>... parameters) {
|
||||||
|
for (final Field field : target.getDeclaredFields()) {
|
||||||
|
if(matching(field, name, fieldType, parameters) && index-- <= 0) {
|
||||||
|
field.setAccessible(true);
|
||||||
|
|
||||||
|
return new FieldAccessor<T>() {
|
||||||
|
@Override
|
||||||
|
@SuppressWarnings("unchecked")
|
||||||
|
public T get(Object target) {
|
||||||
|
try {
|
||||||
|
return (T) field.get(target);
|
||||||
|
} catch (IllegalAccessException e) {
|
||||||
|
throw new IllegalArgumentException("Cannot access reflection.", e);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public void set(Object target, Object value) {
|
||||||
|
try {
|
||||||
|
field.set(target, value);
|
||||||
|
} catch (IllegalAccessException e) {
|
||||||
|
throw new IllegalArgumentException("Cannot access reflection.", e);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public boolean hasField(Object target) {
|
||||||
|
// target instanceof DeclaringClass
|
||||||
|
return field.getDeclaringClass().isAssignableFrom(target.getClass());
|
||||||
|
}
|
||||||
|
};
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Search in parent classes
|
||||||
|
if (target.getSuperclass() != null)
|
||||||
|
return getField(target.getSuperclass(), name, fieldType, index);
|
||||||
|
|
||||||
|
throw new IllegalArgumentException("Cannot find field with type " + fieldType);
|
||||||
|
}
|
||||||
|
|
||||||
|
private static <T> boolean matching(Field field, String name, Class<T> fieldType, Class<?>... parameters) {
|
||||||
|
if(name != null && !field.getName().equals(name))
|
||||||
|
return false;
|
||||||
|
|
||||||
|
if(!fieldType.isAssignableFrom(field.getType()))
|
||||||
|
return false;
|
||||||
|
|
||||||
|
if(parameters.length > 0) {
|
||||||
|
Type[] arguments = ((ParameterizedType)field.getGenericType()).getActualTypeArguments();
|
||||||
|
|
||||||
|
for(int i = 0; i < parameters.length; i++) {
|
||||||
|
if(arguments[i] instanceof ParameterizedType ? ((ParameterizedType) arguments[i]).getRawType() != parameters[i] : arguments[i] != parameters[i])
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Search for the first publicly and privately defined method of the given name and parameter count.
|
||||||
|
*
|
||||||
|
* @param className - lookup name of the class, see {@link #getClass(String)}.
|
||||||
|
* @param methodName - the method name, or NULL to skip.
|
||||||
|
* @param params - the expected parameters.
|
||||||
|
* @return An object that invokes this specific method.
|
||||||
|
* @throws IllegalStateException If we cannot find this method.
|
||||||
|
*/
|
||||||
|
public static MethodInvoker getMethod(String className, String methodName, Class<?>... params) {
|
||||||
|
return getTypedMethod(getClass(className), methodName, null, params);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Search for the first publicly and privately defined method of the given name and parameter count.
|
||||||
|
*
|
||||||
|
* @param clazz - a class to start with.
|
||||||
|
* @param methodName - the method name, or NULL to skip.
|
||||||
|
* @param params - the expected parameters.
|
||||||
|
* @return An object that invokes this specific method.
|
||||||
|
* @throws IllegalStateException If we cannot find this method.
|
||||||
|
*/
|
||||||
|
public static MethodInvoker getMethod(Class<?> clazz, String methodName, Class<?>... params) {
|
||||||
|
return getTypedMethod(clazz, methodName, null, params);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Search for the first publicly and privately defined method of the given name and parameter count.
|
||||||
|
*
|
||||||
|
* @param clazz - a class to start with.
|
||||||
|
* @param methodName - the method name, or NULL to skip.
|
||||||
|
* @param returnType - the expected return type, or NULL to ignore.
|
||||||
|
* @param params - the expected parameters.
|
||||||
|
* @return An object that invokes this specific method.
|
||||||
|
* @throws IllegalStateException If we cannot find this method.
|
||||||
|
*/
|
||||||
|
public static MethodInvoker getTypedMethod(Class<?> clazz, String methodName, Class<?> returnType, Class<?>... params) {
|
||||||
|
for (final Method method : clazz.getDeclaredMethods()) {
|
||||||
|
if ((methodName == null || method.getName().equals(methodName))
|
||||||
|
&& (returnType == null || method.getReturnType().equals(returnType))
|
||||||
|
&& Arrays.equals(method.getParameterTypes(), params)) {
|
||||||
|
method.setAccessible(true);
|
||||||
|
|
||||||
|
return (target, arguments) -> {
|
||||||
|
try {
|
||||||
|
return method.invoke(target, arguments);
|
||||||
|
} catch (Exception e) {
|
||||||
|
throw new IllegalArgumentException("Cannot invoke method " + method, e);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Search in every superclass
|
||||||
|
if (clazz.getSuperclass() != null)
|
||||||
|
return getTypedMethod(clazz.getSuperclass(), methodName, returnType, params);
|
||||||
|
|
||||||
|
throw new IllegalStateException(String.format("Unable to find method %s (%s).", methodName, Arrays.asList(params)));
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Search for the first publically and privately defined constructor of the given name and parameter count.
|
||||||
|
*
|
||||||
|
* @param className - lookup name of the class, see {@link #getClass(String)}.
|
||||||
|
* @param params - the expected parameters.
|
||||||
|
* @return An object that invokes this constructor.
|
||||||
|
* @throws IllegalStateException If we cannot find this method.
|
||||||
|
*/
|
||||||
|
public static ConstructorInvoker getConstructor(String className, Class<?>... params) {
|
||||||
|
return getConstructor(getClass(className), params);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Search for the first publically and privately defined constructor of the given name and parameter count.
|
||||||
|
*
|
||||||
|
* @param clazz - a class to start with.
|
||||||
|
* @param params - the expected parameters.
|
||||||
|
* @return An object that invokes this constructor.
|
||||||
|
* @throws IllegalStateException If we cannot find this method.
|
||||||
|
*/
|
||||||
|
public static ConstructorInvoker getConstructor(Class<?> clazz, Class<?>... params) {
|
||||||
|
for (final Constructor<?> constructor : clazz.getDeclaredConstructors()) {
|
||||||
|
if (Arrays.equals(constructor.getParameterTypes(), params)) {
|
||||||
|
constructor.setAccessible(true);
|
||||||
|
|
||||||
|
return arguments -> {
|
||||||
|
try {
|
||||||
|
return constructor.newInstance(arguments);
|
||||||
|
} catch (Exception e) {
|
||||||
|
throw new IllegalArgumentException("Cannot invoke constructor " + constructor, e);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
throw new IllegalStateException(String.format("Unable to find constructor for %s (%s).", clazz, Arrays.asList(params)));
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Retrieve a class from its full name, without knowing its type on compile time.
|
||||||
|
* <p>
|
||||||
|
* This is useful when looking up fields by a NMS or OBC type.
|
||||||
|
* <p>
|
||||||
|
*
|
||||||
|
* @param lookupName - the class name with variables.
|
||||||
|
* @return The class.
|
||||||
|
*/
|
||||||
|
public static Class<Object> getUntypedClass(String lookupName) {
|
||||||
|
@SuppressWarnings({ "rawtypes", "unchecked" })
|
||||||
|
Class<Object> clazz = (Class) getClass(lookupName);
|
||||||
|
return clazz;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Retrieve a class from its full name.
|
||||||
|
* <p>
|
||||||
|
* Strings enclosed with curly brackets - such as {TEXT} - will be replaced according to the following table:
|
||||||
|
* <p>
|
||||||
|
* <table border="1">
|
||||||
|
* <tr>
|
||||||
|
* <th>Variable</th>
|
||||||
|
* <th>Content</th>
|
||||||
|
* </tr>
|
||||||
|
* <tr>
|
||||||
|
* <td>{nms}</td>
|
||||||
|
* <td>Actual package name of net.minecraft.server.VERSION</td>
|
||||||
|
* </tr>
|
||||||
|
* <tr>
|
||||||
|
* <td>{obc}</td>
|
||||||
|
* <td>Actual pacakge name of org.bukkit.craftbukkit.VERSION</td>
|
||||||
|
* </tr>
|
||||||
|
* <tr>
|
||||||
|
* <td>{version}</td>
|
||||||
|
* <td>The current Minecraft package VERSION, if any.</td>
|
||||||
|
* </tr>
|
||||||
|
* </table>
|
||||||
|
*
|
||||||
|
* @param lookupName - the class name with variables.
|
||||||
|
* @return The looked up class.
|
||||||
|
* @throws IllegalArgumentException If a variable or class could not be found.
|
||||||
|
*/
|
||||||
|
public static Class<?> getClass(String lookupName) {
|
||||||
|
try {
|
||||||
|
return Class.forName(lookupName);
|
||||||
|
} catch (ClassNotFoundException e) {
|
||||||
|
throw new IllegalArgumentException("Cannot find " + lookupName, e);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
@SuppressWarnings("deprecation")
|
||||||
|
public static Object newInstance(Class<?> clazz) {
|
||||||
|
try {
|
||||||
|
return clazz.newInstance();
|
||||||
|
} catch (InstantiationException | IllegalAccessException e) {
|
||||||
|
throw new SecurityException("Could not create object", e);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -1,203 +0,0 @@
|
|||||||
/*
|
|
||||||
This file is a part of the SteamWar software.
|
|
||||||
|
|
||||||
Copyright (C) 2020 SteamWar.de-Serverteam
|
|
||||||
|
|
||||||
This program is free software: you can redistribute it and/or modify
|
|
||||||
it under the terms of the GNU Affero General Public License as published by
|
|
||||||
the Free Software Foundation, either version 3 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 Affero General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Affero General Public License
|
|
||||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
package net.md_5.bungee.api.bungeepluginmanager;
|
|
||||||
|
|
||||||
import com.google.common.base.Preconditions;
|
|
||||||
import com.google.common.collect.Multimap;
|
|
||||||
import net.md_5.bungee.api.ProxyServer;
|
|
||||||
import net.md_5.bungee.api.plugin.*;
|
|
||||||
import org.yaml.snakeyaml.Yaml;
|
|
||||||
import org.yaml.snakeyaml.constructor.Constructor;
|
|
||||||
import org.yaml.snakeyaml.representer.Representer;
|
|
||||||
|
|
||||||
import java.io.File;
|
|
||||||
import java.io.InputStream;
|
|
||||||
import java.net.URLClassLoader;
|
|
||||||
import java.util.Map;
|
|
||||||
import java.util.ResourceBundle;
|
|
||||||
import java.util.Set;
|
|
||||||
import java.util.jar.JarEntry;
|
|
||||||
import java.util.jar.JarFile;
|
|
||||||
import java.util.logging.Handler;
|
|
||||||
import java.util.logging.Level;
|
|
||||||
|
|
||||||
public final class PluginUtils {
|
|
||||||
private PluginUtils() {
|
|
||||||
throw new IllegalStateException("Utility class");
|
|
||||||
}
|
|
||||||
|
|
||||||
@SuppressWarnings("deprecation")
|
|
||||||
public static void unloadPlugin(Plugin plugin) {
|
|
||||||
|
|
||||||
PluginManager pluginManager = ProxyServer.getInstance().getPluginManager();
|
|
||||||
ClassLoader pluginClassLoader = plugin.getClass().getClassLoader();
|
|
||||||
|
|
||||||
try {
|
|
||||||
//call onDisable
|
|
||||||
plugin.onDisable();
|
|
||||||
//close all log handlers
|
|
||||||
for (Handler handler : plugin.getLogger().getHandlers()) {
|
|
||||||
handler.close();
|
|
||||||
}
|
|
||||||
} catch (Exception t) {
|
|
||||||
severe("Exception disabling plugin", t, plugin.getDescription().getName());
|
|
||||||
}
|
|
||||||
|
|
||||||
//unregister event handlers
|
|
||||||
pluginManager.unregisterListeners(plugin);
|
|
||||||
//unregister commands
|
|
||||||
pluginManager.unregisterCommands(plugin);
|
|
||||||
//cancel tasks
|
|
||||||
ProxyServer.getInstance().getScheduler().cancel(plugin);
|
|
||||||
//shutdown internal executor
|
|
||||||
plugin.getExecutorService().shutdownNow();
|
|
||||||
//stop all still active threads that belong to a plugin
|
|
||||||
Thread.getAllStackTraces().keySet().stream()
|
|
||||||
.filter(thread -> (thread.getClass().getClassLoader() == pluginClassLoader))
|
|
||||||
.forEach(thread -> {
|
|
||||||
try {
|
|
||||||
thread.interrupt();
|
|
||||||
thread.join(100);
|
|
||||||
if (thread.isAlive()) {
|
|
||||||
ProxyServer.getInstance().getLogger().log(Level.SEVERE, "Could not stop thread " + thread.getName() + " of plugin " + plugin.getDescription().getName() + ". Still running");
|
|
||||||
}
|
|
||||||
} catch (InterruptedException t) {
|
|
||||||
Thread.currentThread().interrupt();
|
|
||||||
}
|
|
||||||
});
|
|
||||||
|
|
||||||
//finish uncompleted intents
|
|
||||||
ModifiedPluginEventBus.completeIntents(plugin);
|
|
||||||
//remove commands that were registered by plugin not through normal means
|
|
||||||
try {
|
|
||||||
Map<String, Command> commandMap = ReflectionUtils.getFieldValue(pluginManager, "commandMap");
|
|
||||||
if (checkReflectionNotNull(commandMap, "commandMap")) {
|
|
||||||
commandMap.entrySet().removeIf(entry -> entry.getValue().getClass().getClassLoader() == pluginClassLoader);
|
|
||||||
}
|
|
||||||
} catch (Exception t) {
|
|
||||||
severe("Failed to cleanup commandMap", t, plugin.getDescription().getName());
|
|
||||||
}
|
|
||||||
//cleanup internal listener and command maps from plugin refs
|
|
||||||
try {
|
|
||||||
Map<String, Plugin> pluginsMap = ReflectionUtils.getFieldValue(pluginManager, "plugins");
|
|
||||||
Multimap<Plugin, Command> commands = ReflectionUtils.getFieldValue(pluginManager, "commandsByPlugin");
|
|
||||||
Multimap<Plugin, Listener> listeners = ReflectionUtils.getFieldValue(pluginManager, "listenersByPlugin");
|
|
||||||
|
|
||||||
if (checkReflectionNotNull(pluginsMap, "plugin")
|
|
||||||
&& checkReflectionNotNull(commands, "commandByPlugin")
|
|
||||||
&& checkReflectionNotNull(listeners, "listenersByPlugin")) {
|
|
||||||
pluginsMap.values().remove(plugin);
|
|
||||||
commands.removeAll(plugin);
|
|
||||||
listeners.removeAll(plugin);
|
|
||||||
}
|
|
||||||
} catch (Exception t) {
|
|
||||||
severe("Failed to cleanup bungee internal maps from plugin refs", t, plugin.getDescription().getName());
|
|
||||||
}
|
|
||||||
|
|
||||||
ResourceBundle.clearCache(pluginClassLoader);
|
|
||||||
|
|
||||||
//close classloader
|
|
||||||
if (pluginClassLoader instanceof URLClassLoader) {
|
|
||||||
try {
|
|
||||||
((URLClassLoader) pluginClassLoader).close();
|
|
||||||
} catch (Exception t) {
|
|
||||||
severe("Failed to close the classloader for plugin", t, plugin.getDescription().getName());
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// Remove classloader
|
|
||||||
try {
|
|
||||||
Class<?> PluginClassLoader = Class.forName("net.md_5.bungee.api.plugin.PluginClassloader");
|
|
||||||
Set<?> allLoaders = ReflectionUtils.getStaticFieldValue(PluginClassLoader, "allLoaders");
|
|
||||||
Preconditions.checkNotNull(allLoaders);
|
|
||||||
allLoaders.remove(pluginClassLoader);
|
|
||||||
} catch (ClassNotFoundException e) {
|
|
||||||
e.printStackTrace();
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
private static boolean checkReflectionNotNull(Object obj, String field) {
|
|
||||||
if (obj == null) {
|
|
||||||
ProxyServer.getInstance().getLogger().log(Level.SEVERE, "Could not get field {} by reflections: are you using the latest version of BungeePluginManager?", field);
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
@SuppressWarnings("resource")
|
|
||||||
public static boolean loadPlugin(File pluginFile) {
|
|
||||||
|
|
||||||
try (JarFile jar = new JarFile(pluginFile)) {
|
|
||||||
|
|
||||||
JarEntry pdf = jar.getJarEntry("bungee.yml");
|
|
||||||
|
|
||||||
if (pdf == null) {
|
|
||||||
pdf = jar.getJarEntry("plugin.yml");
|
|
||||||
}
|
|
||||||
|
|
||||||
try (InputStream in = jar.getInputStream(pdf)) {
|
|
||||||
//load description
|
|
||||||
|
|
||||||
Representer representer = new Representer();
|
|
||||||
representer.getPropertyUtils().setSkipMissingProperties(true);
|
|
||||||
PluginDescription desc = new Yaml(new Constructor(PluginDescription.class), representer).loadAs(in, PluginDescription.class);
|
|
||||||
desc.setFile(pluginFile);
|
|
||||||
|
|
||||||
|
|
||||||
//check depends
|
|
||||||
Map<String, Plugin> pluginsMap = ReflectionUtils.getFieldValue(ProxyServer.getInstance().getPluginManager(), "plugins");
|
|
||||||
Preconditions.checkNotNull(pluginsMap);
|
|
||||||
|
|
||||||
for (String dependency : desc.getDepends()) {
|
|
||||||
if (!pluginsMap.containsKey(dependency)) {
|
|
||||||
ProxyServer.getInstance().getLogger().log(Level.WARNING, "{0} (required by {1}) is unavailable", new Object[]{dependency, desc.getName()});
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
Object libraryLoader = ReflectionUtils.getFieldValue(ProxyServer.getInstance().getPluginManager(), "libraryLoader");
|
|
||||||
|
|
||||||
//load plugin
|
|
||||||
Class<?> pluginClassLoader = Class.forName("net.md_5.bungee.api.plugin.PluginClassloader");
|
|
||||||
java.lang.reflect.Constructor<?> constructor = pluginClassLoader.getConstructor(ProxyServer.class, PluginDescription.class, File.class, ClassLoader.class);
|
|
||||||
constructor.setAccessible(true);
|
|
||||||
URLClassLoader loader = (URLClassLoader) constructor.newInstance(ProxyServer.getInstance(), desc, pluginFile, libraryLoader != null ? ReflectionUtils.invokeMethod(libraryLoader, "createLoader", desc) : null);
|
|
||||||
Class<?> mainclazz = loader.loadClass(desc.getMain());
|
|
||||||
Plugin plugin = (Plugin) mainclazz.getDeclaredConstructor().newInstance();
|
|
||||||
ReflectionUtils.invokeMethod(plugin, "init", ProxyServer.getInstance(), desc);
|
|
||||||
|
|
||||||
pluginsMap.put(desc.getName(), plugin);
|
|
||||||
plugin.onLoad();
|
|
||||||
plugin.onEnable();
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
} catch (Exception t) {
|
|
||||||
severe("Failed to load plugin", t, pluginFile.getName());
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
private static void severe(String message, Exception t, String pluginName) {
|
|
||||||
ProxyServer.getInstance().getLogger().log(Level.SEVERE, message + " " + pluginName, t);
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
@ -1,90 +0,0 @@
|
|||||||
/*
|
|
||||||
This file is a part of the SteamWar software.
|
|
||||||
|
|
||||||
Copyright (C) 2020 SteamWar.de-Serverteam
|
|
||||||
|
|
||||||
This program is free software: you can redistribute it and/or modify
|
|
||||||
it under the terms of the GNU Affero General Public License as published by
|
|
||||||
the Free Software Foundation, either version 3 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 Affero General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Affero General Public License
|
|
||||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
package net.md_5.bungee.api.bungeepluginmanager;
|
|
||||||
|
|
||||||
import java.lang.reflect.Field;
|
|
||||||
import java.lang.reflect.InvocationTargetException;
|
|
||||||
import java.lang.reflect.Method;
|
|
||||||
|
|
||||||
public final class ReflectionUtils {
|
|
||||||
private ReflectionUtils() {
|
|
||||||
throw new IllegalStateException("Utility class");
|
|
||||||
}
|
|
||||||
|
|
||||||
@SuppressWarnings("unchecked")
|
|
||||||
static <T> T getFieldValue(Object obj, String fieldName) {
|
|
||||||
Class<?> clazz = obj.getClass();
|
|
||||||
do {
|
|
||||||
try {
|
|
||||||
Field field = clazz.getDeclaredField(fieldName);
|
|
||||||
field.setAccessible(true);
|
|
||||||
return (T) field.get(obj);
|
|
||||||
} catch (NoSuchFieldException | SecurityException | IllegalArgumentException | IllegalAccessException error) {
|
|
||||||
// Ignored
|
|
||||||
}
|
|
||||||
} while ((clazz = clazz.getSuperclass()) != null);
|
|
||||||
return null;
|
|
||||||
}
|
|
||||||
|
|
||||||
public static void setFieldValue(Object obj, String fieldName, Object value) {
|
|
||||||
Class<?> clazz = obj.getClass();
|
|
||||||
do {
|
|
||||||
try {
|
|
||||||
Field field = clazz.getDeclaredField(fieldName);
|
|
||||||
field.setAccessible(true);
|
|
||||||
field.set(obj, value);
|
|
||||||
} catch (NoSuchFieldException | SecurityException | IllegalArgumentException | IllegalAccessException error) {
|
|
||||||
// Ignored
|
|
||||||
}
|
|
||||||
} while ((clazz = clazz.getSuperclass()) != null);
|
|
||||||
}
|
|
||||||
|
|
||||||
@SuppressWarnings("unchecked")
|
|
||||||
static <T> T getStaticFieldValue(Class<?> clazz, String fieldName) {
|
|
||||||
do {
|
|
||||||
try {
|
|
||||||
Field field = clazz.getDeclaredField(fieldName);
|
|
||||||
field.setAccessible(true);
|
|
||||||
return (T) field.get(null);
|
|
||||||
} catch (NoSuchFieldException | SecurityException | IllegalArgumentException | IllegalAccessException error) {
|
|
||||||
// Ignored
|
|
||||||
}
|
|
||||||
} while ((clazz = clazz.getSuperclass()) != null);
|
|
||||||
return null;
|
|
||||||
}
|
|
||||||
|
|
||||||
static Object invokeMethod(Object obj, String methodName, Object... args) {
|
|
||||||
Class<?> clazz = obj.getClass();
|
|
||||||
do {
|
|
||||||
try {
|
|
||||||
for (Method method : clazz.getDeclaredMethods()) {
|
|
||||||
if (method.getName().equals(methodName) && method.getParameterTypes().length == args.length) {
|
|
||||||
method.setAccessible(true);
|
|
||||||
return method.invoke(obj, args);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
} catch (SecurityException | IllegalAccessException | IllegalArgumentException | InvocationTargetException error) {
|
|
||||||
// Ignore
|
|
||||||
}
|
|
||||||
} while ((clazz = clazz.getSuperclass()) != null);
|
|
||||||
throw new SecurityException("Method could not be found!");
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
In neuem Issue referenzieren
Einen Benutzer sperren