105 lines
4.2 KiB
Java
105 lines
4.2 KiB
Java
/*
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* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
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* Copyright (C) 2016-2023 ViaVersion and contributors
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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 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 General Public License for more details.
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*
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* You should have received a copy of the GNU 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.viaversion.viaversion.bukkit.compat;
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import com.viaversion.viaversion.ViaVersionPlugin;
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import com.viaversion.viaversion.api.Via;
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import com.viaversion.viaversion.bukkit.util.NMSUtil;
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import java.util.logging.Level;
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import org.bukkit.Bukkit;
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import org.bukkit.event.Event;
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import org.bukkit.event.EventPriority;
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import org.bukkit.event.Listener;
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public final class ProtocolSupportCompat {
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public static void registerPSConnectListener(ViaVersionPlugin plugin) {
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Via.getPlatform().getLogger().info("Registering ProtocolSupport compat connection listener");
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try {
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//noinspection unchecked
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Class<? extends Event> connectionOpenEvent = (Class<? extends Event>) Class.forName("protocolsupport.api.events.ConnectionOpenEvent");
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Bukkit.getPluginManager().registerEvent(connectionOpenEvent, new Listener() {
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}, EventPriority.HIGH, (listener, event) -> {
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try {
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Object connection = event.getClass().getMethod("getConnection").invoke(event);
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ProtocolSupportConnectionListener connectListener = new ProtocolSupportConnectionListener(connection);
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ProtocolSupportConnectionListener.ADD_PACKET_LISTENER_METHOD.invoke(connection, connectListener);
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} catch (ReflectiveOperationException e) {
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Via.getPlatform().getLogger().log(Level.WARNING, "Error when handling ProtocolSupport event", e);
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}
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}, plugin);
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} catch (ClassNotFoundException e) {
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Via.getPlatform().getLogger().log(Level.WARNING, "Unable to register ProtocolSupport listener", e);
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}
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}
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public static boolean isMultiplatformPS() {
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try {
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Class.forName("protocolsupport.zplatform.impl.spigot.network.pipeline.SpigotPacketEncoder");
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return true;
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} catch (ClassNotFoundException e) {
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return false;
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}
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}
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static HandshakeProtocolType handshakeVersionMethod() {
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Class<?> clazz = null;
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// Check for the mapped method
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try {
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clazz = NMSUtil.nms(
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"PacketHandshakingInSetProtocol",
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"net.minecraft.network.protocol.handshake.PacketHandshakingInSetProtocol"
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);
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clazz.getMethod("getProtocolVersion");
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return HandshakeProtocolType.MAPPED;
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} catch (ClassNotFoundException e) {
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throw new RuntimeException(e);
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} catch (NoSuchMethodException ignored) {
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}
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// Check for obfuscated b/c methods
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try {
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if (clazz.getMethod("b").getReturnType() == int.class) {
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return HandshakeProtocolType.OBFUSCATED_B;
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} else if (clazz.getMethod("c").getReturnType() == int.class) {
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return HandshakeProtocolType.OBFUSCATED_C;
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}
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throw new UnsupportedOperationException("Protocol version method not found in " + clazz.getSimpleName());
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} catch (ReflectiveOperationException e) {
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throw new RuntimeException(e);
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}
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}
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enum HandshakeProtocolType {
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MAPPED("getProtocolVersion"),
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OBFUSCATED_B("b"),
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OBFUSCATED_C("c");
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private final String methodName;
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HandshakeProtocolType(String methodName) {
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this.methodName = methodName;
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}
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public String methodName() {
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return methodName;
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}
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}
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}
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