Geyser/bootstrap/bungeecord/src/main/java/org/geysermc/geyser/platform/bungeecord/GeyserBungeeCompressionDisa...

61 lines
2.6 KiB
Java

/*
* Copyright (c) 2019-2021 GeyserMC. http://geysermc.org
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @author GeyserMC
* @link https://github.com/GeyserMC/Geyser
*/
package org.geysermc.geyser.platform.bungeecord;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelOutboundHandlerAdapter;
import io.netty.channel.ChannelPromise;
import net.md_5.bungee.protocol.packet.LoginSuccess;
import net.md_5.bungee.protocol.packet.SetCompression;
public class GeyserBungeeCompressionDisabler extends ChannelOutboundHandlerAdapter {
private boolean compressionDisabled = false;
@Override
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
if (!(msg instanceof SetCompression)) {
// Fixes https://github.com/GeyserMC/Geyser/issues/4281
// The server may send a LoginDisconnect packet after compression is set.
if (!compressionDisabled) {
if (ctx.pipeline().get("compress") != null) {
ctx.pipeline().remove("compress");
compressionDisabled = true;
}
if (ctx.pipeline().get("decompress") != null) {
ctx.pipeline().remove("decompress");
compressionDisabled = true;
}
}
if (msg instanceof LoginSuccess) {
// We're past the point that compression can be enabled
ctx.pipeline().remove(this);
}
super.write(ctx, msg, promise);
}
}
}