Mirror von
https://github.com/PaperMC/Paper.git
synchronisiert 2024-12-16 19:40:07 +01:00
d5f1ffc2e6
With the new chunk system it doesn't hurt too much to (temporarily) remove this until implemented in a safer manner
69 Zeilen
4.2 KiB
Diff
69 Zeilen
4.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Andrew Steinborn <git@steinborn.me>
|
|
Date: Sun, 5 Jul 2020 22:38:18 -0400
|
|
Subject: [PATCH] Optimize NetworkManager Exception Handling
|
|
|
|
|
|
diff --git a/src/main/java/net/minecraft/network/ConnectionProtocol.java b/src/main/java/net/minecraft/network/ConnectionProtocol.java
|
|
index 1c243b60bf955841d69d1a5ace9d243edf88a6fb..19f05a2d202e3b71391d20acbf54392f644978e4 100644
|
|
--- a/src/main/java/net/minecraft/network/ConnectionProtocol.java
|
|
+++ b/src/main/java/net/minecraft/network/ConnectionProtocol.java
|
|
@@ -300,6 +300,7 @@ public enum ConnectionProtocol {
|
|
|
|
@Nullable
|
|
public Packet<?> createPacket(int id, FriendlyByteBuf buf) {
|
|
+ if (id < 0 || id >= this.idToDeserializer.size()) return null; // Paper
|
|
Function<FriendlyByteBuf, ? extends Packet<T>> function = this.idToDeserializer.get(id);
|
|
return function != null ? function.apply(buf) : null;
|
|
}
|
|
diff --git a/src/main/java/net/minecraft/network/Varint21FrameDecoder.java b/src/main/java/net/minecraft/network/Varint21FrameDecoder.java
|
|
index 99b581052f937b0f2d6b5d73de699008c1d51774..81ec2011a93bb94200ad750f4666ba1cd8be11c5 100644
|
|
--- a/src/main/java/net/minecraft/network/Varint21FrameDecoder.java
|
|
+++ b/src/main/java/net/minecraft/network/Varint21FrameDecoder.java
|
|
@@ -8,9 +8,20 @@ import io.netty.handler.codec.CorruptedFrameException;
|
|
import java.util.List;
|
|
|
|
public class Varint21FrameDecoder extends ByteToMessageDecoder {
|
|
+ private final byte[] lenBuf = new byte[3]; // Paper
|
|
+ @Override
|
|
protected void decode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, List<Object> list) {
|
|
+ // Paper start - if channel is not active just discard the packet
|
|
+ if (!channelHandlerContext.channel().isActive()) {
|
|
+ byteBuf.skipBytes(byteBuf.readableBytes());
|
|
+ return;
|
|
+ }
|
|
+ // Paper end
|
|
byteBuf.markReaderIndex();
|
|
- byte[] bs = new byte[3];
|
|
+ // Paper start - reuse temporary length buffer
|
|
+ byte[] bs = lenBuf;
|
|
+ java.util.Arrays.fill(bs, (byte) 0);
|
|
+ // Paper end
|
|
|
|
for(int i = 0; i < bs.length; ++i) {
|
|
if (!byteBuf.isReadable()) {
|
|
diff --git a/src/main/java/net/minecraft/network/protocol/PacketUtils.java b/src/main/java/net/minecraft/network/protocol/PacketUtils.java
|
|
index 049e64c355d5f064009b1107ad15d28c44f999dd..acfa1907bfc9c29d261cfccc00d65bad9ad1a002 100644
|
|
--- a/src/main/java/net/minecraft/network/protocol/PacketUtils.java
|
|
+++ b/src/main/java/net/minecraft/network/protocol/PacketUtils.java
|
|
@@ -30,11 +30,15 @@ public class PacketUtils {
|
|
try (co.aikar.timings.Timing ignored = timing.startTiming()) { // Paper - timings
|
|
packet.handle(listener);
|
|
} catch (Exception exception) {
|
|
- if (listener.shouldPropagateHandlingExceptions()) {
|
|
- throw exception;
|
|
+ net.minecraft.network.Connection networkmanager = listener.getConnection();
|
|
+ if (networkmanager.getPlayer() != null) {
|
|
+ LOGGER.error("Error whilst processing packet {} for {}[{}]", packet, networkmanager.getPlayer().getScoreboardName(), networkmanager.getRemoteAddress(), exception);
|
|
+ } else {
|
|
+ LOGGER.error("Error whilst processing packet {} for connection from {}", packet, networkmanager.getRemoteAddress(), exception);
|
|
}
|
|
-
|
|
- PacketUtils.LOGGER.error("Failed to handle packet {}, suppressing error", packet, exception);
|
|
+ net.minecraft.network.chat.Component error = net.minecraft.network.chat.Component.literal("Packet processing error");
|
|
+ networkmanager.send(new net.minecraft.network.protocol.game.ClientboundDisconnectPacket(error), net.minecraft.network.PacketSendListener.thenRun(() -> networkmanager.disconnect(error)));
|
|
+ networkmanager.setReadOnly();
|
|
}
|
|
} else {
|
|
PacketUtils.LOGGER.debug("Ignoring packet due to disconnection: {}", packet);
|