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https://github.com/ViaVersion/ViaProxy.git
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Updated block connection update packet spam fix
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parent
e225383f51
commit
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@ -27,7 +27,7 @@ import org.objectweb.asm.tree.*;
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public abstract class ConnectionDataTransformer {
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public abstract class ConnectionDataTransformer {
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@CASM("update")
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@CASM("update")
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public static void preventBlockChangeSpam1(MethodNode method) {
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public static void preventBlockChangeSpam(MethodNode method) {
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LabelNode continueLabel = new LabelNode();
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LabelNode continueLabel = new LabelNode();
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InsnList checkCode = new InsnList();
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InsnList checkCode = new InsnList();
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checkCode.add(new VarInsnNode(Opcodes.ILOAD, 7));
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checkCode.add(new VarInsnNode(Opcodes.ILOAD, 7));
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@ -48,22 +48,4 @@ public abstract class ConnectionDataTransformer {
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}
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}
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}
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}
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@CASM("updateBlock")
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public static void preventBlockChangeSpam2(MethodNode method) {
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LabelNode addLabel = new LabelNode();
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InsnList checkCode = new InsnList();
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checkCode.add(new VarInsnNode(Opcodes.ILOAD, 3));
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checkCode.add(new VarInsnNode(Opcodes.ILOAD, 5));
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checkCode.add(new JumpInsnNode(Opcodes.IF_ICMPNE, addLabel));
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checkCode.add(new InsnNode(Opcodes.RETURN));
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checkCode.add(addLabel);
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for (AbstractInsnNode insn : method.instructions.toArray()) {
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if (insn.getOpcode() == Opcodes.INVOKEINTERFACE) {
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method.instructions.insertBefore(insn, checkCode);
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break;
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}
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}
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}
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}
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}
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@ -0,0 +1,35 @@
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/*
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* This file is part of ViaProxy - https://github.com/RaphiMC/ViaProxy
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* Copyright (C) 2023 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.injection.transformer;
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import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.blockconnections.ConnectionData;
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import net.lenni0451.classtransform.InjectionCallback;
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import net.lenni0451.classtransform.annotations.CLocalVariable;
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import net.lenni0451.classtransform.annotations.CTarget;
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import net.lenni0451.classtransform.annotations.CTransformer;
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import net.lenni0451.classtransform.annotations.injection.CInject;
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@CTransformer(ConnectionData.NeighbourUpdater.class)
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public class ConnectionData_NeighbourUpdaterTransformer {
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@CInject(method = "updateBlock", target = @CTarget(value = "INVOKE", target = "Ljava/util/List;add(Ljava/lang/Object;)Z", shift = CTarget.Shift.BEFORE), cancellable = true)
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public void preventBlockChangeSpam(InjectionCallback ic, @CLocalVariable(name = "blockState") int blockState, @CLocalVariable(name = "newBlockState") int newBlockState) {
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if (blockState == newBlockState) ic.setCancelled(true);
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}
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}
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