forked from GeyserMC/Geyser
186d94917a
* Update copyright to 2021 Free commit! * These don't need a copyright * Don't downgrade the mappings
106 lines
5.3 KiB
Java
106 lines
5.3 KiB
Java
/*
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* Copyright (c) 2019-2021 GeyserMC. http://geysermc.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @author GeyserMC
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* @link https://github.com/GeyserMC/Geyser
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*/
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package org.geysermc.connector.network.translators;
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import com.github.steveice10.mc.protocol.packet.ingame.server.ServerPlayerListDataPacket;
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import com.github.steveice10.mc.protocol.packet.ingame.server.world.ServerUpdateLightPacket;
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import com.github.steveice10.packetlib.packet.Packet;
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import com.nukkitx.protocol.bedrock.BedrockPacket;
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import it.unimi.dsi.fastutil.objects.ObjectArrayList;
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import org.geysermc.connector.GeyserConnector;
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import org.geysermc.connector.network.session.GeyserSession;
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import org.geysermc.connector.utils.FileUtils;
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import org.geysermc.connector.utils.LanguageUtils;
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import org.reflections.Reflections;
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import java.util.HashMap;
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import java.util.Map;
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public class PacketTranslatorRegistry<T> {
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private final Map<Class<? extends T>, PacketTranslator<? extends T>> translators = new HashMap<>();
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public static final PacketTranslatorRegistry<Packet> JAVA_TRANSLATOR = new PacketTranslatorRegistry<>();
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public static final PacketTranslatorRegistry<BedrockPacket> BEDROCK_TRANSLATOR = new PacketTranslatorRegistry<>();
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private static final ObjectArrayList<Class<?>> IGNORED_PACKETS = new ObjectArrayList<>();
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static {
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Reflections ref = GeyserConnector.getInstance().useXmlReflections() ? FileUtils.getReflections("org.geysermc.connector.network.translators") : new Reflections("org.geysermc.connector.network.translators");
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for (Class<?> clazz : ref.getTypesAnnotatedWith(Translator.class)) {
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Class<?> packet = clazz.getAnnotation(Translator.class).packet();
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GeyserConnector.getInstance().getLogger().debug("Found annotated translator: " + clazz.getCanonicalName() + " : " + packet.getSimpleName());
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try {
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if (Packet.class.isAssignableFrom(packet)) {
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Class<? extends Packet> targetPacket = (Class<? extends Packet>) packet;
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PacketTranslator<? extends Packet> translator = (PacketTranslator<? extends Packet>) clazz.newInstance();
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JAVA_TRANSLATOR.translators.put(targetPacket, translator);
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} else if (BedrockPacket.class.isAssignableFrom(packet)) {
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Class<? extends BedrockPacket> targetPacket = (Class<? extends BedrockPacket>) packet;
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PacketTranslator<? extends BedrockPacket> translator = (PacketTranslator<? extends BedrockPacket>) clazz.newInstance();
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BEDROCK_TRANSLATOR.translators.put(targetPacket, translator);
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} else {
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GeyserConnector.getInstance().getLogger().error(LanguageUtils.getLocaleStringLog("geyser.network.translator.invalid_target", clazz.getCanonicalName()));
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}
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} catch (InstantiationException | IllegalAccessException e) {
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GeyserConnector.getInstance().getLogger().error(LanguageUtils.getLocaleStringLog("geyser.network.translator.failed", clazz.getCanonicalName()));
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}
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}
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IGNORED_PACKETS.add(ServerUpdateLightPacket.class); // Light is handled on Bedrock for us
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IGNORED_PACKETS.add(ServerPlayerListDataPacket.class); // Cant be implemented in bedrock
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}
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private PacketTranslatorRegistry() {
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}
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public static void init() {
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// no-op
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}
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@SuppressWarnings("unchecked")
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public <P extends T> boolean translate(Class<? extends P> clazz, P packet, GeyserSession session) {
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if (!session.getUpstream().isClosed() && !session.isClosed()) {
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try {
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if (translators.containsKey(clazz)) {
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((PacketTranslator<P>) translators.get(clazz)).translate(packet, session);
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return true;
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} else {
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if (!IGNORED_PACKETS.contains(clazz))
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GeyserConnector.getInstance().getLogger().debug("Could not find packet for " + (packet.toString().length() > 25 ? packet.getClass().getSimpleName() : packet));
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}
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} catch (Throwable ex) {
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GeyserConnector.getInstance().getLogger().error(LanguageUtils.getLocaleStringLog("geyser.network.translator.packet.failed", packet.getClass().getSimpleName()), ex);
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ex.printStackTrace();
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}
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}
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return false;
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}
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}
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