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Paper/Spigot-Server-Patches/0248-Vanished-players-don-t-have-rights.patch
Aikar c953e51dd7
[Auto] Updated Upstream (CraftBukkit/Spigot) 
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

CraftBukkit Changes:
221aed6cf SPIGOT-6413: Server Corruption Changing Blocks in Piston Events
721c4966b SPIGOT-6411: The PlayerEditBookEvent is not called when the player edits a book in the off-hand.
be0e94581 Add mc-dev imports

Spigot Changes:
a25e8ed2 Remove mc-dev imports
2021-04-07 01:17:32 -04:00

195 lines
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From 0000000000000000000000000000000000000000 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/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index c88eea18e2e219f242c53ffb4e28cfc6d7bf318a..3a46a5001cda7402a97ac8552650cf64e7881fad 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -184,7 +184,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, ne
private static double e = 1.0D;
private final EntityTypes<?> f;
private int id;
- public boolean i;
+ public boolean i; public final boolean blocksEntitySpawning() { return this.i; } // Paper - OBFHELPER
public final List<Entity> passengers;
protected int j;
@Nullable
diff --git a/src/main/java/net/minecraft/world/entity/projectile/IProjectile.java b/src/main/java/net/minecraft/world/entity/projectile/IProjectile.java
index 65cea9282467cb362ac6e9e0bb03c5d36085ee43..65cee640040bdd1229149409ff046b765ee08c34 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/IProjectile.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/IProjectile.java
@@ -4,6 +4,7 @@ import java.util.Iterator;
import java.util.UUID;
import javax.annotation.Nullable;
import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.server.level.EntityPlayer;
import net.minecraft.server.level.WorldServer;
import net.minecraft.util.MathHelper;
import net.minecraft.world.entity.Entity;
@@ -140,8 +141,14 @@ public abstract class IProjectile extends Entity {
protected boolean a(Entity entity) {
if (!entity.isSpectator() && entity.isAlive() && entity.isInteractable()) {
Entity entity1 = this.getShooter();
-
+ // Paper start - Cancel hit for vanished players
+ if (entity1 instanceof EntityPlayer && entity instanceof EntityPlayer) {
+ org.bukkit.entity.Player collided = (org.bukkit.entity.Player) entity.getBukkitEntity();
+ org.bukkit.entity.Player shooter = (org.bukkit.entity.Player) entity1.getBukkitEntity();
+ if (!shooter.canSee(collided)) return false;
+ }
return entity1 == null || this.d || !entity1.isSameVehicle(entity);
+ // Paper end
} else {
return false;
}
diff --git a/src/main/java/net/minecraft/world/item/ItemBlock.java b/src/main/java/net/minecraft/world/item/ItemBlock.java
index ec12bea9de910824927ba31628b49f6713f31a29..59d52c252b2e59923b8e513dd4d2e1ec9ce34dc7 100644
--- a/src/main/java/net/minecraft/world/item/ItemBlock.java
+++ b/src/main/java/net/minecraft/world/item/ItemBlock.java
@@ -177,7 +177,8 @@ public class ItemBlock extends Item {
EntityHuman entityhuman = blockactioncontext.getEntity();
VoxelShapeCollision voxelshapecollision = entityhuman == null ? VoxelShapeCollision.a() : VoxelShapeCollision.a((Entity) entityhuman);
// CraftBukkit start - store default return
- boolean defaultReturn = (!this.isCheckCollisions() || iblockdata.canPlace(blockactioncontext.getWorld(), blockactioncontext.getClickPosition())) && blockactioncontext.getWorld().a(iblockdata, blockactioncontext.getClickPosition(), voxelshapecollision);
+ World world = blockactioncontext.getWorld(); // Paper
+ boolean defaultReturn = (!this.isCheckCollisions() || iblockdata.canPlace(blockactioncontext.getWorld(), blockactioncontext.getClickPosition())) && world.checkEntityCollision(iblockdata, entityhuman, voxelshapecollision, blockactioncontext.getClickPosition(), true); // Paper
org.bukkit.entity.Player player = (blockactioncontext.getEntity() instanceof EntityPlayer) ? (org.bukkit.entity.Player) blockactioncontext.getEntity().getBukkitEntity() : null;
BlockCanBuildEvent event = new BlockCanBuildEvent(CraftBlock.at(blockactioncontext.getWorld(), blockactioncontext.getClickPosition()), player, CraftBlockData.fromData(iblockdata), defaultReturn);
diff --git a/src/main/java/net/minecraft/world/level/World.java b/src/main/java/net/minecraft/world/level/World.java
index 8c7263f9dbb00cf6484e7f70b8d97639bab0cefc..07c5cdd00930a55fd412ef95f71f55ee908189a1 100644
--- a/src/main/java/net/minecraft/world/level/World.java
+++ b/src/main/java/net/minecraft/world/level/World.java
@@ -27,6 +27,7 @@ import net.minecraft.network.protocol.Packet;
import net.minecraft.resources.MinecraftKey;
import net.minecraft.resources.ResourceKey;
import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.EntityPlayer;
import net.minecraft.server.level.PlayerChunk;
import net.minecraft.sounds.SoundCategory;
import net.minecraft.sounds.SoundEffect;
@@ -65,6 +66,10 @@ import net.minecraft.world.level.saveddata.maps.WorldMap;
import net.minecraft.world.level.storage.WorldData;
import net.minecraft.world.level.storage.WorldDataMutable;
import net.minecraft.world.phys.AxisAlignedBB;
+import net.minecraft.world.phys.shapes.OperatorBoolean;
+import net.minecraft.world.phys.shapes.VoxelShape;
+import net.minecraft.world.phys.shapes.VoxelShapeCollision;
+import net.minecraft.world.phys.shapes.VoxelShapes;
import net.minecraft.world.scores.Scoreboard;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
@@ -232,6 +237,46 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
this.tileLimiter = new org.spigotmc.TickLimiter(spigotConfig.tileMaxTickTime);
}
+ // Paper start
+ // ret true if no collision
+ public final boolean checkEntityCollision(IBlockData data, Entity source, VoxelShapeCollision voxelshapedcollision,
+ BlockPosition position, boolean checkCanSee) {
+ // Copied from IWorldReader#a(IBlockData, BlockPosition, VoxelShapeCollision) & EntityAccess#a(Entity, VoxelShape)
+ VoxelShape voxelshape = data.getCollisionShape(this, position, voxelshapedcollision);
+ if (voxelshape.isEmpty()) {
+ return true;
+ }
+
+ voxelshape = voxelshape.offset((double) position.getX(), (double) position.getY(), (double) position.getZ());
+ if (voxelshape.isEmpty()) {
+ return true;
+ }
+
+ List<Entity> entities = this.getEntities(null, voxelshape.getBoundingBox());
+ for (int i = 0, len = entities.size(); i < len; ++i) {
+ Entity entity = entities.get(i);
+
+ if (checkCanSee && source instanceof EntityPlayer && entity instanceof EntityPlayer
+ && !((EntityPlayer) source).getBukkitEntity().canSee(((EntityPlayer) entity).getBukkitEntity())) {
+ continue;
+ }
+
+ // !entity1.dead && entity1.i && (entity == null || !entity1.x(entity));
+ // elide the last check since vanilla calls with entity = null
+ // only we care about the source for the canSee check
+ if (entity.dead || !entity.blocksEntitySpawning()) {
+ continue;
+ }
+
+ if (VoxelShapes.applyOperation(voxelshape, VoxelShapes.of(entity.getBoundingBox()), OperatorBoolean.AND)) {
+ return false;
+ }
+ }
+
+ return true;
+ }
+ // Paper end
+
@Override
public boolean s_() {
return this.isClientSide;
diff --git a/src/main/java/net/minecraft/world/level/block/state/BlockBase.java b/src/main/java/net/minecraft/world/level/block/state/BlockBase.java
index 2902117fd2803741b053a04fda7f4414fb8593cb..10f4015b8c36e4e27cf7d0745ba70b8a9e60aff3 100644
--- a/src/main/java/net/minecraft/world/level/block/state/BlockBase.java
+++ b/src/main/java/net/minecraft/world/level/block/state/BlockBase.java
@@ -505,6 +505,7 @@ public abstract class BlockBase {
return this.a != null ? this.a.b : this.b(iblockaccess, blockposition, VoxelShapeCollision.a());
}
+ public final VoxelShape getCollisionShape(IBlockAccess iblockaccess, BlockPosition blockposition, VoxelShapeCollision voxelshapecollision) { return this.b(iblockaccess, blockposition, voxelshapecollision); } // Paper - OBFHELPER
public VoxelShape b(IBlockAccess iblockaccess, BlockPosition blockposition, VoxelShapeCollision voxelshapecollision) {
return this.getBlock().c(this.p(), iblockaccess, blockposition, voxelshapecollision);
}
diff --git a/src/main/java/net/minecraft/world/phys/shapes/VoxelShape.java b/src/main/java/net/minecraft/world/phys/shapes/VoxelShape.java
index 1b82349b96b3ec9490d06d1c1d1cbf2b1578d313..887016224c16f8a38c10a98eb0e2ae6cb353a153 100644
--- a/src/main/java/net/minecraft/world/phys/shapes/VoxelShape.java
+++ b/src/main/java/net/minecraft/world/phys/shapes/VoxelShape.java
@@ -54,6 +54,7 @@ public abstract class VoxelShape {
return this.a.a();
}
+ public final VoxelShape offset(double x, double y, double z) { return this.a(x, y, z); } // Paper - OBFHELPER
public VoxelShape a(double d0, double d1, double d2) {
return (VoxelShape) (this.isEmpty() ? VoxelShapes.a() : new VoxelShapeArray(this.a, new DoubleListOffset(this.a(EnumDirection.EnumAxis.X), d0), new DoubleListOffset(this.a(EnumDirection.EnumAxis.Y), d1), new DoubleListOffset(this.a(EnumDirection.EnumAxis.Z), d2)));
}
diff --git a/src/main/java/net/minecraft/world/phys/shapes/VoxelShapes.java b/src/main/java/net/minecraft/world/phys/shapes/VoxelShapes.java
index fdd9e37a8c90fc3311e515355af0a0593efbdacc..cf32a4f63e8e59535c02a3f9c57f98833a2b0e83 100644
--- a/src/main/java/net/minecraft/world/phys/shapes/VoxelShapes.java
+++ b/src/main/java/net/minecraft/world/phys/shapes/VoxelShapes.java
@@ -45,6 +45,7 @@ public final class VoxelShapes {
return a(new AxisAlignedBB(d0, d1, d2, d3, d4, d5));
}
+ public static final VoxelShape of(AxisAlignedBB axisAlignedbb) { return VoxelShapes.a(axisAlignedbb); } // Paper - OBFHELPER
public static VoxelShape a(AxisAlignedBB axisalignedbb) {
int i = a(axisalignedbb.minX, axisalignedbb.maxX);
int j = a(axisalignedbb.minY, axisalignedbb.maxY);
@@ -139,6 +140,7 @@ public final class VoxelShapes {
}
}
+ public static final boolean applyOperation(VoxelShape voxelshape, VoxelShape voxelshape1, OperatorBoolean operatorboolean) { return VoxelShapes.c(voxelshape, voxelshape1, operatorboolean); } // Paper - OBFHELPER
public static boolean c(VoxelShape voxelshape, VoxelShape voxelshape1, OperatorBoolean operatorboolean) {
if (operatorboolean.apply(false, false)) {
throw (IllegalArgumentException) SystemUtils.c((Throwable) (new IllegalArgumentException()));
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index db8dc8e5dda304a3ccd81dc0c781476d5946a1ba..334ac1cb253cf3d063c7a26db698c596b425b057 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -1202,6 +1202,14 @@ public class CraftEventFactory {
Projectile projectile = (Projectile) entity.getBukkitEntity();
org.bukkit.entity.Entity collided = position.getEntity().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;
}
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