70 lines
2.9 KiB
Java
70 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.protocolhack.providers;
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import com.viaversion.viaversion.api.connection.UserConnection;
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import io.netty.channel.Channel;
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import net.raphimc.netminecraft.constants.MCPipeline;
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import net.raphimc.viabedrock.netty.AesEncryption;
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import net.raphimc.viabedrock.netty.SnappyCompression;
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import net.raphimc.viabedrock.netty.ZLibCompression;
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import net.raphimc.viabedrock.protocol.providers.NettyPipelineProvider;
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import net.raphimc.vialoader.netty.VLPipeline;
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import net.raphimc.viaproxy.proxy.session.ProxyConnection;
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import javax.crypto.SecretKey;
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public class ViaProxyNettyPipelineProvider extends NettyPipelineProvider {
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@Override
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public void enableCompression(UserConnection user, int threshold, int algorithm) {
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final ProxyConnection proxyConnection = ProxyConnection.fromUserConnection(user);
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final Channel channel = proxyConnection.getChannel();
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try {
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channel.pipeline().remove(MCPipeline.COMPRESSION_HANDLER_NAME);
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switch (algorithm) {
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case 0:
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channel.pipeline().addBefore(MCPipeline.SIZER_HANDLER_NAME, MCPipeline.COMPRESSION_HANDLER_NAME, new ZLibCompression());
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break;
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case 1:
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channel.pipeline().addBefore(MCPipeline.SIZER_HANDLER_NAME, MCPipeline.COMPRESSION_HANDLER_NAME, new SnappyCompression());
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break;
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default:
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throw new IllegalStateException("Invalid compression algorithm: " + algorithm);
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}
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} catch (Throwable e) {
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throw new RuntimeException(e);
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}
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}
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@Override
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public void enableEncryption(UserConnection user, SecretKey key) {
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final ProxyConnection proxyConnection = ProxyConnection.fromUserConnection(user);
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final Channel channel = proxyConnection.getChannel();
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try {
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channel.pipeline().remove(MCPipeline.ENCRYPTION_HANDLER_NAME);
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channel.pipeline().addAfter(VLPipeline.VIABEDROCK_FRAME_ENCAPSULATION_HANDLER_NAME, MCPipeline.ENCRYPTION_HANDLER_NAME, new AesEncryption(key));
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} catch (Throwable e) {
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throw new RuntimeException(e);
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}
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}
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}
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