Paper/patches/server/0414-Fix-deop-kicking-non-whitelisted-player-when-white-l.patch
Bjarne Koll c5a10665b8
Remove wall-time / unused skip tick protection (#11412)
Spigot still maintains some partial implementation of "tick skipping", a
practice in which the MinecraftServer.currentTick field is updated not
by an increment of one per actual tick, but instead set to
System.currentTimeMillis() / 50. This behaviour means that the tracked
tick may "skip" a tick value in case a previous tick took more than the
expected 50ms.

To compensate for this in important paths, spigot/craftbukkit
implements "wall-time". Instead of incrementing/decrementing ticks on
block entities/entities by one for each call to their tick() method,
they instead increment/decrement important values, like
an ItemEntity's age or pickupDelay, by the difference of
`currentTick - lastTick`, where `lastTick` is the value of
`currentTick` during the last tick() call.

These "fixes" however do not play nicely with minecraft's simulation
distance as entities/block entities implementing the above behaviour
would "catch up" their values when moving from a non-ticking chunk to a
ticking one as their `lastTick` value remains stuck on the last tick in
a ticking chunk and hence lead to a large "catch up" once ticked again.

Paper completely removes the "tick skipping" behaviour (See patch
"Further-improve-server-tick-loop"), making the above precautions
completely unnecessary, which also rids paper of the previous described
incompatibility with non-ticking chunks.
2024-09-19 16:36:07 +02:00

28 lines
1.7 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Sat, 3 Oct 2020 22:00:27 -0500
Subject: [PATCH] Fix deop kicking non-whitelisted player when white list is
not enabled
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index d2866b9f7e6c8f0ca30d451c93c56caefb2c1b5c..05aa3323e9ae971fba5ab8c6c319c7805a3808aa 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -2270,13 +2270,14 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
if (this.isEnforceWhitelist()) {
PlayerList playerlist = source.getServer().getPlayerList();
UserWhiteList whitelist = playerlist.getWhiteList();
+ if (!((DedicatedServer) getServer()).getProperties().whiteList.get()) return; // Paper - whitelist not enabled
List<ServerPlayer> list = Lists.newArrayList(playerlist.getPlayers());
Iterator iterator = list.iterator();
while (iterator.hasNext()) {
ServerPlayer entityplayer = (ServerPlayer) iterator.next();
- if (!whitelist.isWhiteListed(entityplayer.getGameProfile())) {
+ if (!whitelist.isWhiteListed(entityplayer.getGameProfile()) && !this.getPlayerList().isOp(entityplayer.getGameProfile())) { // Paper - Fix kicking ops when whitelist is reloaded (MC-171420)
entityplayer.connection.disconnect((Component) Component.translatable("multiplayer.disconnect.not_whitelisted"));
}
}