Paper/patches/server/0233-Vanished-players-don-t-have-rights.patch

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2021-06-12 23:31:35 +02:00
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/projectile/Projectile.java b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
index c25cb17ef1a7c56e10ce3ccb5665c9dce3e6efa6..30118ff975da9491fa41db2133d217c2a797a8e3 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
@@ -209,7 +209,14 @@ public abstract class Projectile extends Entity {
if (!entity.isSpectator() && entity.isAlive() && entity.isPickable()) {
Entity entity1 = this.getOwner();
+ // Paper start - Cancel hit for vanished players
+ if (entity1 instanceof net.minecraft.server.level.ServerPlayer && entity instanceof net.minecraft.server.level.ServerPlayer) {
+ 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.leftOwner || !entity1.isPassengerOfSameVehicle(entity);
+ // Paper end
} else {
return false;
}
diff --git a/src/main/java/net/minecraft/world/item/BlockItem.java b/src/main/java/net/minecraft/world/item/BlockItem.java
index 86d245c9a817be5fd2be7f331d3a3a5f3169e8c2..44b28773fe8e79931e738d493bd9405e0ee3dca9 100644
--- a/src/main/java/net/minecraft/world/item/BlockItem.java
+++ b/src/main/java/net/minecraft/world/item/BlockItem.java
@@ -191,7 +191,8 @@ public class BlockItem extends Item {
Player entityhuman = context.getPlayer();
CollisionContext voxelshapecollision = entityhuman == null ? CollisionContext.empty() : CollisionContext.of((Entity) entityhuman);
// CraftBukkit start - store default return
- boolean defaultReturn = (!this.mustSurvive() || state.canSurvive(context.getLevel(), context.getClickedPos())) && context.getLevel().isUnobstructed(state, context.getClickedPos(), voxelshapecollision);
+ Level world = context.getLevel(); // Paper
+ boolean defaultReturn = (!this.mustSurvive() || state.canSurvive(context.getLevel(), context.getClickedPos())) && world.checkEntityCollision(state, entityhuman, voxelshapecollision, context.getClickedPos(), true); // Paper
org.bukkit.entity.Player player = (context.getPlayer() instanceof ServerPlayer) ? (org.bukkit.entity.Player) context.getPlayer().getBukkitEntity() : null;
BlockCanBuildEvent event = new BlockCanBuildEvent(CraftBlock.at(context.getLevel(), context.getClickedPos()), player, CraftBlockData.fromData(state), defaultReturn);
diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
2021-06-16 06:53:50 +02:00
index ed7b9b350558df96f91b64ceccb137968c05a0f6..4635400065ef169d7c95e083c2b57eb0dd7f29ce 100644
2021-06-12 23:31:35 +02:00
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -71,6 +71,10 @@ import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
import net.minecraft.world.level.storage.LevelData;
import net.minecraft.world.level.storage.WritableLevelData;
import net.minecraft.world.phys.AABB;
+import net.minecraft.world.phys.shapes.BooleanOp;
+import net.minecraft.world.phys.shapes.CollisionContext;
+import net.minecraft.world.phys.shapes.Shapes;
+import net.minecraft.world.phys.shapes.VoxelShape;
import net.minecraft.world.scores.Scoreboard;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
@@ -248,6 +252,45 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
this.tileLimiter = new org.spigotmc.TickLimiter(spigotConfig.tileMaxTickTime);
}
+ // Paper start
+ // ret true if no collision
+ public final boolean checkEntityCollision(BlockState data, Entity source, CollisionContext voxelshapedcollision,
+ BlockPos 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.move((double) position.getX(), (double) position.getY(), (double) position.getZ());
+ if (voxelshape.isEmpty()) {
+ return true;
+ }
+
+ List<Entity> entities = this.getEntities(null, voxelshape.bounds());
+ for (int i = 0, len = entities.size(); i < len; ++i) {
+ Entity entity = entities.get(i);
+
+ if (checkCanSee && source instanceof net.minecraft.server.level.ServerPlayer && entity instanceof net.minecraft.server.level.ServerPlayer
+ && !((net.minecraft.server.level.ServerPlayer) source).getBukkitEntity().canSee(((net.minecraft.server.level.ServerPlayer) 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.isRemoved() || !entity.blocksBuilding) {
+ continue;
+ }
+
+ if (Shapes.joinIsNotEmpty(voxelshape, Shapes.create(entity.getBoundingBox()), BooleanOp.AND)) {
+ return false;
+ }
+ }
+
+ return true;
+ }
+ // Paper end
@Override
public boolean isClientSide() {
return this.isClientSide;
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
2021-06-16 06:53:50 +02:00
index 378e09eca16738bce048837752149f212a6e2cc3..4e5128629ccbb884d88b369be5010e6b20763707 100644
2021-06-12 23:31:35 +02:00
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
Updated Upstream (Bukkit/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 Bukkit Changes: 8503c3c9 #621: Add HumanEntity#getItemInUse and Material#getSlipperiness 248deb09 #622: Add methods to check if item is the breed item for an entity 2ce691d8 Clarify Player#breakBlock only works for blocks in the same world 5dcdd48e SPIGOT-6514: Small Dripleaf block data is missing half property cc9610b7 #619: Add Player#breakBlock() 862bc475 Fix bad merge of SPIGOT-6502 fix 989bb0c1 Downgrade SnakeYAML due to issues with comments parsing 1dff62ae Fix inverted visual fire docs CraftBukkit Changes: 40caacc8 SPIGOT-6526: World entities are not populated when plugin onEnable is called c9a92ad0 SPIGOT-6536: Marker position not set on spawn 20d3e57c #855: Add HumanEntity#getItemInUse and Material#getSlipperiness d9c69b44 SPIGOT-6529: Fix BundleMeta#setItems 8bd43be5 SPIGOT-6535: PlayerGameModeChangeEvent event incorrectly reports old gamemode 4ece3ff3 #856: Add methods to check if item is the breed item for an entity dd4bec5f Add additional validation to Player#breakBlock bc835ae6 SPIGOT-6532: Fix Entity#setGlowing 384e116e Restore 1.16.5 behaviour of InventoryDragEvent being called even when a single item is 'dragged' to its own slot b42e708c Fix new map colors rendering as transparent cfe7fecf SPIGOT-6524: Inventory desync when InventoryClickEvent is cancelled eeae1b19 SPIGOT-6522: ItemStack on cursor is always AIR 7490724d Fix missing PlayerEditBookEvent 06875f76 SPIGOT-6513: Placing ItemStack in Inventory causes InventoryAction.NOTHING 27835bde SPIGOT-6519: Fix end gateway teleports 4ac634ad SPIGOT-6515: "Un-waterlogging" throws UnsupportedOperationException in some cases da425fa2 SPIGOT-6518: Anvils falling onto dripstone can sometimes crash server 50530da9 SPIGOT-6514: Small Dripleaf block data is missing half property 6fdecf20 #853: Implement Player#breakBlock() 4db9c49f SPIGOT-6510: Bukkit#createMap throws NullPointerException 89e2b127 SPIGOT-6517: Spider jockey crash on dripstone cbf2f678 SPIGOT-6508: Rename conflicted getServer 74575d48 SPIGOT-6506: Fix crash with custom inventories a3df386f Fix NPE with Entity.getNearbyEntities d747f8ed Fix NPE with World.getNearbyEntities 4d2c7800 Fix second usage of worldGenSettings just in case 5182f923 SPIGOT-6504: Fix generating fresh worlds Spigot Changes: 66f9d3c1 Rebuild patches 191e4971 Rebuild patches a09c0bb6 Restore Spigot experience merging
2021-06-13 07:13:07 +02:00
@@ -1206,6 +1206,14 @@ public class CraftEventFactory {
2021-06-12 23:31:35 +02:00
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;
}