Paper/patches/server/0706-Fix-dangerous-end-portal-logic.patch
Jason bc127ea819
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#6222)
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:
eec4aab0 SPIGOT-6657: Add getPlayer to SheepDyeWoolEvent
205213c6 SPIGOT-6656: CauldronLevelChangeEvent is not fired correctly when dripstone fills the cauldron

CraftBukkit Changes:
b8c522d5 SPIGOT-6657: Add getPlayer to SheepDyeWoolEvent
f04a77dc SPIGOT-6656: CauldronLevelChangeEvent is not fired correctly when dripstone fills the cauldron
d1dbcebc SPIGOT-6653: Canceling snow bucket placement removes snow from bucket
4f34a67b #891: Fix scheduler task ID overflow and duplication issues

Spigot Changes:
d03d7f12 BUILDTOOLS-604: Rebuild patches
2021-07-18 09:41:53 +02:00

88 Zeilen
4.1 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <spottedleaf@users.noreply.github.com>
Date: Fri, 4 Jun 2021 17:06:52 -0400
Subject: [PATCH] Fix dangerous end portal logic
End portals could teleport entities during move calls. Stupid
logic given the caller will never expect that kind of thing,
and will result in all kinds of dupes.
Move the tick logic into the post tick, where portaling was
designed to happen in the first place.
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 9b4bbdec896fa8c37d68604f095cc3cd54c8cab2..a11507c630248b98153275f78c15ebee59a6b0a3 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -361,6 +361,37 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
}
// Paper end - optimise entity tracking
+ // Paper start - make end portalling safe
+ public BlockPos portalBlock;
+ public ServerLevel portalWorld;
+ public void tickEndPortal() {
+ BlockPos pos = this.portalBlock;
+ ServerLevel world = this.portalWorld;
+ this.portalBlock = null;
+ this.portalWorld = null;
+
+ if (pos == null || world == null || world != this.level) {
+ return;
+ }
+
+ if (this.isPassenger() || this.isVehicle() || !this.canChangeDimensions() || this.isRemoved() || !this.valid || !this.isAlive()) {
+ return;
+ }
+
+ ResourceKey<Level> resourcekey = world.getTypeKey() == DimensionType.END_LOCATION ? Level.OVERWORLD : Level.END; // CraftBukkit - SPIGOT-6152: send back to main overworld in custom ends
+ ServerLevel worldserver = world.getServer().getLevel(resourcekey);
+
+ org.bukkit.event.entity.EntityPortalEnterEvent event = new org.bukkit.event.entity.EntityPortalEnterEvent(this.getBukkitEntity(), new org.bukkit.Location(world.getWorld(), pos.getX(), pos.getY(), pos.getZ()));
+ event.callEvent();
+
+ if (this instanceof ServerPlayer) {
+ ((ServerPlayer)this).changeDimension(worldserver, PlayerTeleportEvent.TeleportCause.END_PORTAL);
+ return;
+ }
+ this.teleportTo(worldserver, null);
+ }
+ // Paper end - make end portalling safe
+
public Entity(EntityType<?> type, Level world) {
this.id = Entity.ENTITY_COUNTER.incrementAndGet();
this.passengers = ImmutableList.of();
@@ -2511,6 +2542,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
}
this.processPortalCooldown();
+ this.tickEndPortal(); // Paper - make end portalling safe
}
}
diff --git a/src/main/java/net/minecraft/world/level/block/EndPortalBlock.java b/src/main/java/net/minecraft/world/level/block/EndPortalBlock.java
index 739c9c3a49fd3893ac39962a02a5e3620dc4fe06..62c2f947a77570228dfdf4dae16c64eb97ee2f40 100644
--- a/src/main/java/net/minecraft/world/level/block/EndPortalBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/EndPortalBlock.java
@@ -53,16 +53,10 @@ public class EndPortalBlock extends BaseEntityBlock {
// return; // CraftBukkit - always fire event in case plugins wish to change it
}
- // CraftBukkit start - Entity in portal
- EntityPortalEnterEvent event = new EntityPortalEnterEvent(entity.getBukkitEntity(), new org.bukkit.Location(world.getWorld(), pos.getX(), pos.getY(), pos.getZ()));
- world.getCraftServer().getPluginManager().callEvent(event);
-
- if (entity instanceof ServerPlayer) {
- ((ServerPlayer) entity).changeDimension(worldserver, PlayerTeleportEvent.TeleportCause.END_PORTAL);
- return;
- }
- // CraftBukkit end
- entity.changeDimension(worldserver);
+ // Paper start - move all of this logic into portal tick
+ entity.portalWorld = ((ServerLevel)world);
+ entity.portalBlock = pos.immutable();
+ // Paper end - move all of this logic into portal tick
}
}