PaperMC/patches/server/0624-Fix-dangerous-end-portal-logic.patch
Nassim Jahnke 275173e538
Updated Upstream (Bukkit/CraftBukkit)
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:
0c5d8709 SPIGOT-7400: Downgrade maven-resolver due to issues resolving certain depends
255c4fdb SPIGOT-7380: Add PlayerInteractEvent#getClickedPosition and ChiseledBookshelf#getSlot

CraftBukkit Changes:
b6b514b7e SPIGOT-7400: Downgrade maven-resolver due to issues resolving certain depends
fcff84de9 SPIGOT-7399: Revert null check in CraftMetaItem#safelyAdd
44a4b5649 SPIGOT-7380: Add PlayerInteractEvent#getClickedPosition and ChiseledBookshelf#getSlot
676969d01 SPIGOT-7389: Handle setting null items in ChiseledBookshelf Inventory
2023-06-18 13:18:11 +02:00

86 lines
4.2 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 44d8e9659e111e6f9ca4e403ff4cb4e57c712ea4..6a7b3a54a29b1632061c241b89058729c2b3e036 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -515,6 +515,36 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
return chunkMap.playerEntityTrackerTrackMaps[type.ordinal()].getObjectsInRange(MCUtil.getCoordinateKey(this));
}
// 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() == LevelStem.END ? 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();
@@ -2850,6 +2880,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
}
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 45b427f314da778cc13da9ad6e4e1316790bf1b1..41d7cff39fc37955877668337689b4b26cd8c7cf 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
}
}