mirror of
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123 lines
5.4 KiB
Java
123 lines
5.4 KiB
Java
/*
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* Copyright (c) 2019-2022 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.geyser.platform.spigot;
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import com.viaversion.viaversion.api.Via;
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import org.bukkit.Bukkit;
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import org.bukkit.UnsafeValues;
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import org.geysermc.geyser.GeyserLogger;
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import org.geysermc.geyser.network.GameProtocol;
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import org.geysermc.geyser.text.GeyserLocale;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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import java.lang.reflect.Modifier;
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public final class GeyserSpigotVersionChecker {
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private static final String VIAVERSION_DOWNLOAD_URL = "https://ci.viaversion.com/job/ViaVersion/";
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@SuppressWarnings("deprecation")
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public static void checkForSupportedProtocol(GeyserLogger logger, boolean viaversion) {
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if (viaversion) {
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checkViaVersionSupportedVersions(logger);
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return;
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}
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try {
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// This method is only present on later versions of Paper
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UnsafeValues.class.getMethod("getProtocolVersion");
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if (Bukkit.getUnsafe().getProtocolVersion() != GameProtocol.getJavaProtocolVersion()) {
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sendOutdatedMessage(logger);
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}
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return;
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} catch (NoSuchMethodException ignored) {
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}
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// Otherwise, we can just try to find the SharedConstants class
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// It isn't present in all server versions, but if we can't find it, then we're probably not in the latest version
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Class<?> sharedConstants;
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try {
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sharedConstants = Class.forName("net.minecraft.SharedConstants");
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} catch (ClassNotFoundException e) {
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// We're using pre-1.17
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String prefix = Bukkit.getServer().getClass().getPackage().getName().replace("org.bukkit.craftbukkit", "net.minecraft.server");
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try {
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sharedConstants = Class.forName(prefix + ".SharedConstants");
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} catch (ClassNotFoundException e2) {
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sendOutdatedMessage(logger);
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return;
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}
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}
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for (Method method : sharedConstants.getMethods()) {
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if (method.getReturnType() == int.class && Modifier.isStatic(method.getModifiers())) {
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int protocolVersion;
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try {
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protocolVersion = (int) method.invoke(null);
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} catch (IllegalAccessException | InvocationTargetException e) {
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logger.warning("Could not determine server version! This is safe to ignore, but please report to the developers: " + e.getMessage());
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if (logger.isDebug()) {
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e.printStackTrace();
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}
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return;
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}
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if (protocolVersion != GameProtocol.getJavaProtocolVersion()) {
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sendOutdatedMessage(logger);
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}
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return;
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}
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}
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sendOutdatedMessage(logger);
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}
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private static void checkViaVersionSupportedVersions(GeyserLogger logger) {
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// Run after ViaVersion has obtained the server protocol version
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Via.getPlatform().runSync(() -> {
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if (Via.getAPI().getSupportedVersions().contains(GameProtocol.getJavaProtocolVersion())) {
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// Via supports this protocol version; we will be able to connect.
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return;
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}
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if (Via.getAPI().getFullSupportedVersions().contains(GameProtocol.getJavaProtocolVersion())) {
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// ViaVersion supports our protocol, but the user has blocked them from connecting.
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logger.warning(GeyserLocale.getLocaleStringLog("geyser.bootstrap.viaversion.blocked", GameProtocol.getAllSupportedJavaVersions()));
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return;
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}
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// Else, presumably, ViaVersion is not updated.
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sendOutdatedViaVersionMessage(logger);
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});
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}
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public static void sendOutdatedViaVersionMessage(GeyserLogger logger) {
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logger.warning(GeyserLocale.getLocaleStringLog("geyser.bootstrap.viaversion.too_old",
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VIAVERSION_DOWNLOAD_URL));
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}
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private static void sendOutdatedMessage(GeyserLogger logger) {
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logger.warning(GeyserLocale.getLocaleStringLog("geyser.bootstrap.no_supported_protocol", GameProtocol.getAllSupportedJavaVersions(), VIAVERSION_DOWNLOAD_URL));
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}
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private GeyserSpigotVersionChecker() {
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}
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}
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