72 Zeilen
3.8 KiB
Diff
72 Zeilen
3.8 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/server/EnumProtocol.java b/src/main/java/net/minecraft/server/EnumProtocol.java
|
|
index 32f5470baa88c3dc80db1bb547e1c982ac90237d..64df649e8d209246cc836793160eb0a1506826f8 100644
|
|
--- a/src/main/java/net/minecraft/server/EnumProtocol.java
|
|
+++ b/src/main/java/net/minecraft/server/EnumProtocol.java
|
|
@@ -129,6 +129,7 @@ public enum EnumProtocol {
|
|
|
|
@Nullable
|
|
public Packet<?> a(int i) {
|
|
+ if (i < 0 || i >= this.b.size()) return null; // Paper
|
|
Supplier<? extends Packet<T>> supplier = (Supplier) this.b.get(i);
|
|
|
|
return supplier != null ? (Packet) supplier.get() : null;
|
|
diff --git a/src/main/java/net/minecraft/server/PacketSplitter.java b/src/main/java/net/minecraft/server/PacketSplitter.java
|
|
index cdaa8be90d16b0e9e2f92a3e2ed120b856feab54..2aaa8770edfd8acc6861c23176e405863858b275 100644
|
|
--- a/src/main/java/net/minecraft/server/PacketSplitter.java
|
|
+++ b/src/main/java/net/minecraft/server/PacketSplitter.java
|
|
@@ -9,11 +9,21 @@ import java.util.List;
|
|
|
|
public class PacketSplitter extends ByteToMessageDecoder {
|
|
|
|
+ private final byte[] lenBuf = new byte[3]; // Paper
|
|
public PacketSplitter() {}
|
|
|
|
protected void decode(ChannelHandlerContext channelhandlercontext, ByteBuf bytebuf, List<Object> list) throws Exception {
|
|
+ // 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[] abyte = new byte[3];
|
|
+ // Paper start - reuse temporary length buffer
|
|
+ byte[] abyte = lenBuf;
|
|
+ java.util.Arrays.fill(abyte, (byte) 0);
|
|
+ // Paper end
|
|
|
|
for (int i = 0; i < abyte.length; ++i) {
|
|
if (!bytebuf.isReadable()) {
|
|
diff --git a/src/main/java/net/minecraft/server/PlayerConnectionUtils.java b/src/main/java/net/minecraft/server/PlayerConnectionUtils.java
|
|
index eb3269e0ea3ce33d08e9eee3bca7cf434921e991..7ea293f38dedd6066601d94adbe175a31c502e1f 100644
|
|
--- a/src/main/java/net/minecraft/server/PlayerConnectionUtils.java
|
|
+++ b/src/main/java/net/minecraft/server/PlayerConnectionUtils.java
|
|
@@ -22,6 +22,21 @@ public class PlayerConnectionUtils {
|
|
try (Timing ignored = timing.startTiming()) { // Paper - timings
|
|
packet.a(t0);
|
|
} // Paper - timings
|
|
+ // Paper start
|
|
+ catch (Exception e) {
|
|
+ NetworkManager networkmanager = t0.a();
|
|
+ if (networkmanager.getPlayer() != null) {
|
|
+ LOGGER.error("Error whilst processing packet {} for {}[{}]", packet, networkmanager.getPlayer().getName(), networkmanager.getSocketAddress(), e);
|
|
+ } else {
|
|
+ LOGGER.error("Error whilst processing packet {} for connection from {}", packet, networkmanager.getSocketAddress(), e);
|
|
+ }
|
|
+ ChatComponentText error = new ChatComponentText("Packet processing error");
|
|
+ networkmanager.sendPacket(new PacketPlayOutKickDisconnect(error), (future) -> {
|
|
+ networkmanager.close(error);
|
|
+ });
|
|
+ networkmanager.stopReading();
|
|
+ }
|
|
+ // Paper end
|
|
} else {
|
|
PlayerConnectionUtils.LOGGER.debug("Ignoring packet due to disconnection: " + packet);
|
|
}
|