PaperMC/patches/server/0159-revert-serverside-behavior-of-keepalives.patch
Nassim Jahnke c0936a71bd
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#9440)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
01aa02eb PR-858: Add LivingEntity#playHurtAnimation()
9421320f PR-884: Refinements to new ban API for improved compatibility and correctness
37a60b45 SPIGOT-6455, SPIGOT-7030, PR-750: Improve ban API
4eeb174b All smithing inventories are now the new smithing inventory
f2bb168e PR-880: Add methods to get/set FallingBlock CancelDrop
e7a807fa PR-879: Add Player#sendHealthUpdate()
692b8e96 SPIGOT-7370: Remove float value conversion in plugin.yml
2d033390 SPIGOT-7403: Add direct API for waxed signs
16a08373 PR-876: Add missing Raider API and 'no action ticks'

CraftBukkit Changes:
b60a95c8c PR-1189: Add LivingEntity#playHurtAnimation()
95c335c63 PR-1226: Fix VehicleEnterEvent not being called for certain entities
0a0fc3bee PR-1227: Refinements to new ban API for improved compatibility and correctness
0d0b1e5dc Revert bad change to PathfinderGoalSit causing all cats to sit
648196070 SPIGOT-6455, SPIGOT-7030, PR-1054: Improve ban API
31fe848d6 All smithing inventories are now the new smithing inventory
9a919a143 SPIGOT-7416: SmithItemEvent not firing in Smithing Table
9f64f0d22 PR-1221: Add methods to get/set FallingBlock CancelDrop
3be9ac171 PR-1220: Add Player#sendHealthUpdate()
c1279f775 PR-1209: Clean up various patches
c432e4397 Fix Raider#setCelebrating() implementation
504d96665 SPIGOT-7403: Add direct API for waxed signs
c68c1f1b3 PR-1216: Add missing Raider API and 'no action ticks'
85b89c3dd Increase outdated build delay

Spigot Changes:
9ebce8af Rebuild patches
64b565e6 Rebuild patches
2023-07-04 10:22:56 +02:00

73 lines
4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Sun, 15 Oct 2017 00:29:07 +0100
Subject: [PATCH] revert serverside behavior of keepalives
This patch intends to bump up the time that a client has to reply to the
server back to 30 seconds as per pre 1.12.2, which allowed clients
more than enough time to reply potentially allowing them to be less
tempermental due to lag spikes on the network thread, e.g. that caused
by plugins that are interacting with netty.
We also add a system property to allow people to tweak how long the server
will wait for a reply. There is a compromise here between lower and higher
values, lower values will mean that dead connections can be closed sooner,
whereas higher values will make this less sensitive to issues such as spikes
from networking or during connections flood of chunk packets on slower clients,
at the cost of dead connections being kept open for longer.
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 04bff597b77e37ee90abecc2dabf8919c1ef4082..e206753e5b34b6ab7bd241a77a67e0cdcfa662d1 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -259,7 +259,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
public ServerPlayer player;
private int tickCount;
private int ackBlockChangesUpTo = -1;
- private long keepAliveTime;
+ private long keepAliveTime = Util.getMillis();
private boolean keepAlivePending;
private long keepAliveChallenge;
// CraftBukkit start - multithreaded fields
@@ -297,6 +297,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
private final LastSeenMessagesValidator lastSeenMessages;
private final MessageSignatureCache messageSignatureCache;
private final FutureChain chatMessageChain;
+ private static final long KEEPALIVE_LIMIT = Long.getLong("paper.playerconnection.keepalive", 30) * 1000; // Paper - provide property to set keepalive limit
public ServerGamePacketListenerImpl(MinecraftServer server, Connection connection, ServerPlayer player) {
this.lastChatTimeStamp = new AtomicReference(Instant.EPOCH);
@@ -388,18 +389,25 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
}
this.server.getProfiler().push("keepAlive");
- long i = Util.getMillis();
-
- if (i - this.keepAliveTime >= 25000L) { // CraftBukkit
- if (this.keepAlivePending) {
- this.disconnect(Component.translatable("disconnect.timeout"));
- } else {
+ // Paper Start - give clients a longer time to respond to pings as per pre 1.12.2 timings
+ // This should effectively place the keepalive handling back to "as it was" before 1.12.2
+ long currentTime = Util.getMillis();
+ long elapsedTime = currentTime - this.keepAliveTime;
+
+ if (this.keepAlivePending) {
+ if (!this.processedDisconnect && elapsedTime >= KEEPALIVE_LIMIT) { // check keepalive limit, don't fire if already disconnected
+ ServerGamePacketListenerImpl.LOGGER.warn("{} was kicked due to keepalive timeout!", this.player.getScoreboardName()); // more info
+ this.disconnect(Component.translatable("disconnect.timeout", new Object[0]));
+ }
+ } else {
+ if (elapsedTime >= 15000L) { // 15 seconds
this.keepAlivePending = true;
- this.keepAliveTime = i;
- this.keepAliveChallenge = i;
+ this.keepAliveTime = currentTime;
+ this.keepAliveChallenge = currentTime;
this.send(new ClientboundKeepAlivePacket(this.keepAliveChallenge));
}
}
+ // Paper end
this.server.getProfiler().pop();
// CraftBukkit start