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Allow enabling sand duping (#10191)

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Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable.

It should be noted that this decision does not promise all future exploits will be configurable.
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Owen 2024-03-03 17:05:34 -05:00 • committed by GitHub
parent b21eb4d9a4
commit 89d51d5f29
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673 changed files with 157 additions and 189 deletions
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patches/server/0396-Convert-legacy-attributes-in-Item-Meta.patch Normal file
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@ -0,0 +1,44 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 1 Jul 2020 04:50:22 -0400
Subject: [PATCH] Convert legacy attributes in Item Meta
diff --git a/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeMap.java b/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeMap.java
index d4dba8c733c7560e5108b8d239b52e593f8debec..ea48f1119a940056c37d1d203437bfbfdf13663b 100644
--- a/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeMap.java
+++ b/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeMap.java
@@ -9,6 +9,20 @@ import org.bukkit.attribute.AttributeInstance;
public class CraftAttributeMap implements Attributable {
private final AttributeMap handle;
+ // Paper start - convert legacy attributes
+ private static final com.google.common.collect.ImmutableMap<String, String> legacyNMS = com.google.common.collect.ImmutableMap.<String, String>builder().put("generic.maxHealth", "generic.max_health").put("Max Health", "generic.max_health").put("zombie.spawnReinforcements", "zombie.spawn_reinforcements").put("Spawn Reinforcements Chance", "zombie.spawn_reinforcements").put("horse.jumpStrength", "horse.jump_strength").put("Jump Strength", "horse.jump_strength").put("generic.followRange", "generic.follow_range").put("Follow Range", "generic.follow_range").put("generic.knockbackResistance", "generic.knockback_resistance").put("Knockback Resistance", "generic.knockback_resistance").put("generic.movementSpeed", "generic.movement_speed").put("Movement Speed", "generic.movement_speed").put("generic.flyingSpeed", "generic.flying_speed").put("Flying Speed", "generic.flying_speed").put("generic.attackDamage", "generic.attack_damage").put("generic.attackKnockback", "generic.attack_knockback").put("generic.attackSpeed", "generic.attack_speed").put("generic.armorToughness", "generic.armor_toughness").build();
+
+ public static String convertIfNeeded(String nms) {
+ if (nms == null) {
+ return null;
+ }
+ nms = legacyNMS.getOrDefault(nms, nms);
+ if (!nms.toLowerCase().equals(nms) || nms.indexOf(' ') != -1) {
+ return null;
+ }
+ return nms;
+ }
+ // Paper end
public CraftAttributeMap(AttributeMap handle) {
this.handle = handle;
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
index 7cf1153ae532a9d53ee85b05f77ed74b94cf5fbc..27be5da67801be6fd99c91576064e4be0b3f0d6c 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
@@ -485,7 +485,7 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
AttributeModifier attribMod = CraftAttributeInstance.convert(nmsModifier);
- String attributeName = entry.getString(CraftMetaItem.ATTRIBUTES_IDENTIFIER.NBT);
+ String attributeName = org.bukkit.craftbukkit.attribute.CraftAttributeMap.convertIfNeeded(entry.getString(CraftMetaItem.ATTRIBUTES_IDENTIFIER.NBT)); // Paper
if (attributeName == null || attributeName.isEmpty()) {
continue;
}