Paper/Spigot-Server-Patches/0302-Vanished-players-don-t-have-rights.patch
Aikar 2a2d9fb508
Improvements to Logging Warnings/Dupe Entities - Resolves #1544
1) Removed "Regen" mode of Dupe UUID resolver, forced safe.
Some servers who updated before we had safe mode added still had this value.

There's really no reason to keep this mode, as we've seen that vanilla
triggers this often and 99.9999999% of cases will be an actual duplicate
that needs to be deleted.

2) Made Vanilla Debug messages about dupe UUIDs and dupe uuid resolve messages
only show up if the debug.entities flag is on. This will stop server owners
from panicing from seeing these logs, and stop opening bug reports on this,
only for us to tell you "don't worry about it".

3) Avoid adding entities to world that are already added to world.

This can be triggered by anything that causes an entity to be added
to the world during the chunk load process, such as chunk conversions.

Issue #1544 was a case of this.

4) Removed debug warning about ExpiringMap.

Nothing more I know to do about this anyways. We recover from it,
stop warning to reduce noise of issues to us.
2018-10-07 15:10:23 -04:00

130 lines
6.5 KiB
Diff

From f94f20cf19c01d396b884f087d96197a74349396 Mon Sep 17 00:00:00 2001
From: Hugo Manrique <hugmanrique@gmail.com>
Date: Mon, 23 Jul 2018 14:22:26 +0200
Subject: [PATCH] Vanished players don't have rights
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 57adaf2a4c..0381f8e658 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -94,7 +94,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
private static int entityCount;
private final EntityTypes<?> g; public EntityTypes<?> getEntityType() { return g; } // Paper - OBFHELPER
private int id;
- public boolean j;
+ public boolean j; public boolean blocksEntitySpawning() { return j; } // Paper - OBFHELPER
public final List<Entity> passengers;
protected int k;
private Entity vehicle;
diff --git a/src/main/java/net/minecraft/server/IBlockData.java b/src/main/java/net/minecraft/server/IBlockData.java
index 24ce9137ae..bf06a90312 100644
--- a/src/main/java/net/minecraft/server/IBlockData.java
+++ b/src/main/java/net/minecraft/server/IBlockData.java
@@ -165,6 +165,7 @@ public interface IBlockData extends IBlockDataHolder<IBlockData> {
return this.getBlock().a(this, iblockaccess, blockposition);
}
+ default VoxelShape getBlockShape(IBlockAccess iblockaccess, BlockPosition blockposition) { return h(iblockaccess, blockposition); } // Paper - OBFHELPER
default VoxelShape h(IBlockAccess iblockaccess, BlockPosition blockposition) {
return this.getBlock().f(this, iblockaccess, blockposition);
}
diff --git a/src/main/java/net/minecraft/server/ItemBlock.java b/src/main/java/net/minecraft/server/ItemBlock.java
index 1cecccef23..afc881d9af 100644
--- a/src/main/java/net/minecraft/server/ItemBlock.java
+++ b/src/main/java/net/minecraft/server/ItemBlock.java
@@ -70,7 +70,8 @@ public class ItemBlock extends Item {
protected boolean b(BlockActionContext blockactioncontext, IBlockData iblockdata) {
// CraftBukkit start - store default return
- boolean defaultReturn = iblockdata.canPlace(blockactioncontext.getWorld(), blockactioncontext.getClickPosition()) && blockactioncontext.getWorld().a(iblockdata, blockactioncontext.getClickPosition());
+ final World world = blockactioncontext.getWorld(); // Paper
+ boolean defaultReturn = iblockdata.canPlace(world, blockactioncontext.getClickPosition()) && world.a(iblockdata, blockactioncontext.getClickPosition()) && world.checkNoVisiblePlayerCollisions(blockactioncontext.getEntity(), iblockdata.getBlockShape(world, blockactioncontext.getClickPosition())); // Paper - Use our entity search
BlockCanBuildEvent event = new BlockCanBuildEvent(CraftBlock.at(blockactioncontext.getWorld(), blockactioncontext.getClickPosition()), CraftBlockData.fromData(iblockdata), defaultReturn);
blockactioncontext.getWorld().getServer().getPluginManager().callEvent(event);
diff --git a/src/main/java/net/minecraft/server/VoxelShape.java b/src/main/java/net/minecraft/server/VoxelShape.java
index ea8f1c170a..fdfc0d442e 100644
--- a/src/main/java/net/minecraft/server/VoxelShape.java
+++ b/src/main/java/net/minecraft/server/VoxelShape.java
@@ -24,6 +24,7 @@ public abstract class VoxelShape {
return i <= 0 ? Double.NEGATIVE_INFINITY : this.a(enumdirection$enumaxis, i);
}
+ public AxisAlignedBB getBounds() { return a(); } // Paper - OBFHELPER
public AxisAlignedBB a() {
if (this.b()) {
throw new UnsupportedOperationException("No bounds for empty shape.");
@@ -38,6 +39,7 @@ public abstract class VoxelShape {
protected abstract DoubleList a(EnumDirection.EnumAxis var1);
+ public boolean isEmpty() { return b(); } // Paper - OBFHELPER
public boolean b() {
return this.a.a();
}
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index d58de13028..b3eaac23a6 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -1595,6 +1595,37 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
}
}
+ // Paper start - Based on method below
+ /**
+ * @param entity causing the action ex. block placer
+ * @param voxelshape area to search within
+ * @return if there are no visible players colliding
+ */
+ public boolean checkNoVisiblePlayerCollisions(@Nullable Entity entity, VoxelShape voxelshape) {
+ if (voxelshape.isEmpty()) {
+ return true;
+ } else {
+ List list = this.getEntities((Entity) null, voxelshape.getBounds());
+
+ for (int i = 0; i < list.size(); ++i) {
+ Entity entity1 = (Entity) list.get(i);
+
+ if (entity instanceof EntityPlayer && entity1 instanceof EntityPlayer) {
+ if (!((EntityPlayer) entity).getBukkitEntity().canSee(((EntityPlayer) entity1).getBukkitEntity())) {
+ continue;
+ }
+ }
+
+ if (!entity1.dead && entity1.blocksEntitySpawning()) {
+ return false;
+ }
+ }
+
+ return true;
+ }
+ }
+ // Paper end
+
public boolean a(@Nullable Entity entity, VoxelShape voxelshape) {
if (voxelshape.b()) {
return true;
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index f04fb045eb..9bef0e5bb7 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -821,6 +821,14 @@ public class CraftEventFactory {
Projectile projectile = (Projectile) entity.getBukkitEntity();
org.bukkit.entity.Entity collided = position.entity.getBukkitEntity();
com.destroystokyo.paper.event.entity.ProjectileCollideEvent event = new com.destroystokyo.paper.event.entity.ProjectileCollideEvent(projectile, collided);
+
+ if (projectile.getShooter() instanceof Player && collided instanceof Player) {
+ if (!((Player) projectile.getShooter()).canSee((Player) collided)) {
+ event.setCancelled(true);
+ return event;
+ }
+ }
+
Bukkit.getPluginManager().callEvent(event);
return event;
}
--
2.19.0