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89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
37 lines
2.3 KiB
Diff
37 lines
2.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Noah van der Aa <ndvdaa@gmail.com>
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Date: Fri, 7 Jan 2022 11:58:26 +0100
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Subject: [PATCH] Don't tick markers
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Fixes https://github.com/PaperMC/Paper/issues/7276 and https://github.com/PaperMC/Paper/issues/8118
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by using a config option that, when set to false, does not add markers to the entity
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tick list at all and ignores them in Spigot's activation range checks. The entity tick
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list is only used in the tick and tickPassenger methods, so we can safely not add the
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markers to it. When the config option is set to true, markers are ticked as normal.
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diff --git a/src/main/java/io/papermc/paper/command/subcommands/EntityCommand.java b/src/main/java/io/papermc/paper/command/subcommands/EntityCommand.java
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index ff99336e0b8131ae161cfa5c4fc83c6905e3dbc8..5e5a018433414af76eaa1e781f61612ddc305b07 100644
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--- a/src/main/java/io/papermc/paper/command/subcommands/EntityCommand.java
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+++ b/src/main/java/io/papermc/paper/command/subcommands/EntityCommand.java
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@@ -109,7 +109,7 @@ public final class EntityCommand implements PaperSubcommand {
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ChunkPos chunk = e.chunkPosition();
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info.left++;
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info.right.put(chunk, info.right.getOrDefault(chunk, 0) + 1);
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- if (!chunkProviderServer.isPositionTicking(e)) {
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+ if (!chunkProviderServer.isPositionTicking(e) || (e instanceof net.minecraft.world.entity.Marker && !world.paperConfig().entities.markers.tick)) { // Paper - Configurable marker ticking
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nonEntityTicking.merge(key, 1, Integer::sum);
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}
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});
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diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index 03a9f82ac2af6cb64081c2bb758cb02a7ffd5b89..024f32155feb31365c8233f94b1e15ed85e929fb 100644
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--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
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+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
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@@ -2235,6 +2235,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
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}
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public void onTickingStart(Entity entity) {
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+ if (entity instanceof net.minecraft.world.entity.Marker && !paperConfig().entities.markers.tick) return; // Paper - Configurable marker ticking
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ServerLevel.this.entityTickList.add(entity);
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}
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