78 lines
2.9 KiB
Java
78 lines
2.9 KiB
Java
/*
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* This file is part of ViaProxy - https://github.com/RaphiMC/ViaProxy
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* Copyright (C) 2021-2024 RK_01/RaphiMC 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 net.raphimc.viaproxy.proxy.util;
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import com.viaversion.viaversion.exception.InformativeException;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.handler.codec.DecoderException;
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import io.netty.handler.codec.EncoderException;
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import net.raphimc.viaproxy.proxy.session.ProxyConnection;
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import net.raphimc.viaproxy.util.logging.Logger;
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import java.io.IOException;
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import java.lang.reflect.Field;
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import java.nio.channels.ClosedChannelException;
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public class ExceptionUtil {
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private static Field infoField;
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static {
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try {
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infoField = InformativeException.class.getDeclaredField("info");
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infoField.setAccessible(true);
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} catch (Throwable e) {
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e.printStackTrace();
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}
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}
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public static void handleNettyException(ChannelHandlerContext ctx, Throwable cause, ProxyConnection proxyConnection) {
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if (!ctx.channel().isOpen()) return;
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if (cause instanceof ClosedChannelException) return;
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if (cause instanceof IOException) return;
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if (cause instanceof CloseAndReturn) {
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ctx.channel().close();
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return;
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}
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Logger.LOGGER.error("Caught unhandled netty exception", cause);
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try {
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if (proxyConnection != null) {
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proxyConnection.kickClient("§cAn unhandled error occurred in your connection and it has been closed.\n§aError details for report:§f" + ExceptionUtil.prettyPrint(cause));
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}
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} catch (Throwable ignored) {
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}
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ctx.channel().close();
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}
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public static String prettyPrint(Throwable t) {
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final StringBuilder msg = new StringBuilder();
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if (t instanceof EncoderException) t = t.getCause();
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if (t instanceof DecoderException) t = t.getCause();
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while (t != null) {
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msg.append("\n");
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msg.append("§c").append(t.getClass().getSimpleName()).append("§7: §f").append(t.getMessage());
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t = t.getCause();
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if (t != null) {
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msg.append(" §9Caused by");
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}
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}
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return msg.toString();
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}
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}
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