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Paper/patches/api/0465-Fix-issues-with-recipe-API.patch
Jake Potrebic 16d7d73bd5
bunch more general fixes
2024-10-31 20:35:06 -07:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 12 May 2024 10:42:42 -0700
Subject: [PATCH] Fix issues with recipe API
Improves the validation when creating recipes
and RecipeChoices to closer match what is
allowed by the Codecs and StreamCodecs internally.
Adds RecipeChoice#empty which is allowed in specific
recipes and ingredient slots.
Also fixes some issues regarding mutability of both ItemStack
and implementations of RecipeChoice.
Also adds some validation regarding Materials passed to RecipeChoice
being items.
diff --git a/src/main/java/org/bukkit/inventory/CookingRecipe.java b/src/main/java/org/bukkit/inventory/CookingRecipe.java
index f7fa79393aef40027446b78bac8e9490cfafd8bc..07906ca1a9b39fcc6774870daa498402f7f37917 100644
--- a/src/main/java/org/bukkit/inventory/CookingRecipe.java
+++ b/src/main/java/org/bukkit/inventory/CookingRecipe.java
@@ -44,10 +44,10 @@ public abstract class CookingRecipe<T extends CookingRecipe> implements Recipe,
* @param cookingTime The cooking time (in ticks)
*/
public CookingRecipe(@NotNull NamespacedKey key, @NotNull ItemStack result, @NotNull RecipeChoice input, float experience, int cookingTime) {
- Preconditions.checkArgument(result.getType() != Material.AIR, "Recipe must have non-AIR result.");
+ Preconditions.checkArgument(!result.isEmpty(), "Recipe cannot have an empty result."); // Paper
this.key = key;
this.output = new ItemStack(result);
- this.ingredient = input;
+ this.ingredient = input.validate(false).clone(); // Paper
this.experience = experience;
this.cookingTime = cookingTime;
}
@@ -84,7 +84,7 @@ public abstract class CookingRecipe<T extends CookingRecipe> implements Recipe,
*/
@NotNull
public T setInputChoice(@NotNull RecipeChoice input) {
- this.ingredient = input;
+ this.ingredient = input.validate(false).clone(); // Paper
return (T) this;
}
diff --git a/src/main/java/org/bukkit/inventory/CraftingRecipe.java b/src/main/java/org/bukkit/inventory/CraftingRecipe.java
index 1b7b07715067014bf3d35002ae1655793248b426..5bf55b40fbf6ec708f37d90bd0853fe7dd8fffd9 100644
--- a/src/main/java/org/bukkit/inventory/CraftingRecipe.java
+++ b/src/main/java/org/bukkit/inventory/CraftingRecipe.java
@@ -99,7 +99,7 @@ public abstract class CraftingRecipe implements Recipe, Keyed {
@ApiStatus.Internal
@NotNull
protected static ItemStack checkResult(@NotNull ItemStack result) {
- Preconditions.checkArgument(result.getType() != Material.AIR, "Recipe must have non-AIR result.");
+ Preconditions.checkArgument(!result.isEmpty(), "Recipe cannot have an empty result."); // Paper
return result;
}
}
diff --git a/src/main/java/org/bukkit/inventory/EmptyRecipeChoice.java b/src/main/java/org/bukkit/inventory/EmptyRecipeChoice.java
new file mode 100644
index 0000000000000000000000000000000000000000..a95ecc97fd6507103f9264a686ec1c061fa725b1
--- /dev/null
+++ b/src/main/java/org/bukkit/inventory/EmptyRecipeChoice.java
@@ -0,0 +1,32 @@
+package org.bukkit.inventory;
+
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+@ApiStatus.Internal
+@NullMarked
+record EmptyRecipeChoice() implements RecipeChoice {
+
+ static final RecipeChoice INSTANCE = new EmptyRecipeChoice();
+ @Override
+ public ItemStack getItemStack() {
+ throw new UnsupportedOperationException("This is an empty RecipeChoice");
+ }
+
+ @SuppressWarnings("MethodDoesntCallSuperMethod")
+ @Override
+ public RecipeChoice clone() {
+ return this;
+ }
+
+ @Override
+ public boolean test(final ItemStack itemStack) {
+ return false;
+ }
+
+ @Override
+ public RecipeChoice validate(final boolean allowEmptyRecipes) {
+ if (allowEmptyRecipes) return this;
+ throw new IllegalArgumentException("empty RecipeChoice isn't allowed here");
+ }
+}
diff --git a/src/main/java/org/bukkit/inventory/MerchantRecipe.java b/src/main/java/org/bukkit/inventory/MerchantRecipe.java
index 39f9766a03d420340d79841197f75c8b1dd49f4a..4e59f5176fd6cf92457ad750081c253a58790b61 100644
--- a/src/main/java/org/bukkit/inventory/MerchantRecipe.java
+++ b/src/main/java/org/bukkit/inventory/MerchantRecipe.java
@@ -79,6 +79,7 @@ public class MerchantRecipe implements Recipe {
this(result, uses, maxUses, experienceReward, villagerExperience, priceMultiplier, 0, 0, ignoreDiscounts);
}
public MerchantRecipe(@NotNull ItemStack result, int uses, int maxUses, boolean experienceReward, int villagerExperience, float priceMultiplier, int demand, int specialPrice, boolean ignoreDiscounts) {
+ Preconditions.checkArgument(!result.isEmpty(), "Recipe cannot have an empty result."); // Paper
this.ignoreDiscounts = ignoreDiscounts;
// Paper end
this.result = result;
@@ -101,11 +102,12 @@ public class MerchantRecipe implements Recipe {
@NotNull
@Override
public ItemStack getResult() {
- return result;
+ return result.clone(); // Paper
}
public void addIngredient(@NotNull ItemStack item) {
Preconditions.checkState(ingredients.size() < 2, "MerchantRecipe can only have maximum 2 ingredients");
+ Preconditions.checkArgument(!item.isEmpty(), "Recipe cannot have an empty itemstack ingredient."); // Paper
ingredients.add(item.clone());
}
@@ -117,6 +119,7 @@ public class MerchantRecipe implements Recipe {
Preconditions.checkState(ingredients.size() <= 2, "MerchantRecipe can only have maximum 2 ingredients");
this.ingredients = new ArrayList<ItemStack>();
for (ItemStack item : ingredients) {
+ Preconditions.checkArgument(!item.isEmpty(), "Recipe cannot have an empty itemstack ingredient."); // Paper
this.ingredients.add(item.clone());
}
}
diff --git a/src/main/java/org/bukkit/inventory/RecipeChoice.java b/src/main/java/org/bukkit/inventory/RecipeChoice.java
index 91bfeffcdbe47208c7d0ddbe013cd0f11fddfa32..f1aa67997f904953742e8895e49341c2f73d44a2 100644
--- a/src/main/java/org/bukkit/inventory/RecipeChoice.java
+++ b/src/main/java/org/bukkit/inventory/RecipeChoice.java
@@ -22,6 +22,19 @@ import org.jetbrains.annotations.NotNull;
*/
public interface RecipeChoice extends Predicate<ItemStack>, Cloneable {
+ // Paper start - add "empty" choice
+ /**
+ * An "empty" recipe choice. Only valid as a recipe choice in
+ * specific places. Check the javadocs of a method before using it
+ * to be sure it's valid for that recipe and ingredient type.
+ *
+ * @return the empty recipe choice
+ */
+ static @NotNull RecipeChoice empty() {
+ return EmptyRecipeChoice.INSTANCE;
+ }
+ // Paper end
+
/**
* Gets a single item stack representative of this stack choice.
*
@@ -38,6 +51,13 @@ public interface RecipeChoice extends Predicate<ItemStack>, Cloneable {
@Override
boolean test(@NotNull ItemStack itemStack);
+ // Paper start - check valid ingredients
+ @org.jetbrains.annotations.ApiStatus.Internal
+ default @NotNull RecipeChoice validate(final boolean allowEmptyRecipes) {
+ return this;
+ }
+ // Paper end - check valid ingredients
+
/**
* Represents a choice of multiple matching Materials.
*/
@@ -60,8 +80,7 @@ public interface RecipeChoice extends Predicate<ItemStack>, Cloneable {
* @param choices the tag
*/
public MaterialChoice(@NotNull Tag<Material> choices) {
- Preconditions.checkArgument(choices != null, "choices");
- this.choices = new ArrayList<>(choices.getValues());
+ this(new ArrayList<>(java.util.Objects.requireNonNull(choices, "Cannot create a material choice with null tag").getValues())); // Paper - delegate to list ctor to make sure all checks are called
}
public MaterialChoice(@NotNull List<Material> choices) {
@@ -78,6 +97,7 @@ public interface RecipeChoice extends Predicate<ItemStack>, Cloneable {
}
Preconditions.checkArgument(!choice.isAir(), "Cannot have empty/air choice");
+ Preconditions.checkArgument(choice.isItem(), "Cannot have non-item choice %s", choice); // Paper - validate material choice input to items
this.choices.add(choice);
}
}
@@ -152,6 +172,16 @@ public interface RecipeChoice extends Predicate<ItemStack>, Cloneable {
public String toString() {
return "MaterialChoice{" + "choices=" + choices + '}';
}
+
+ // Paper start - check valid ingredients
+ @Override
+ public @NotNull RecipeChoice validate(final boolean allowEmptyRecipes) {
+ if (this.choices.stream().anyMatch(Material::isAir)) {
+ throw new IllegalArgumentException("RecipeChoice.MaterialChoice cannot contain air");
+ }
+ return this;
+ }
+ // Paper end - check valid ingredients
}
/**
@@ -197,7 +227,12 @@ public interface RecipeChoice extends Predicate<ItemStack>, Cloneable {
public ExactChoice clone() {
try {
ExactChoice clone = (ExactChoice) super.clone();
- clone.choices = new ArrayList<>(choices);
+ // Paper start - properly clone
+ clone.choices = new ArrayList<>(this.choices.size());
+ for (ItemStack choice : this.choices) {
+ clone.choices.add(choice.clone());
+ }
+ // Paper end - properly clone
return clone;
} catch (CloneNotSupportedException ex) {
throw new AssertionError(ex);
@@ -244,5 +279,15 @@ public interface RecipeChoice extends Predicate<ItemStack>, Cloneable {
public String toString() {
return "ExactChoice{" + "choices=" + choices + '}';
}
+
+ // Paper start - check valid ingredients
+ @Override
+ public @NotNull RecipeChoice validate(final boolean allowEmptyRecipes) {
+ if (this.choices.stream().anyMatch(s -> s.getType().isAir())) {
+ throw new IllegalArgumentException("RecipeChoice.ExactChoice cannot contain air");
+ }
+ return this;
+ }
+ // Paper end - check valid ingredients
}
}
diff --git a/src/main/java/org/bukkit/inventory/ShapedRecipe.java b/src/main/java/org/bukkit/inventory/ShapedRecipe.java
index 295d82dd73b600e9436d2bbec0e11dbeaf78bbf4..c0105d716985acef497d60b5c631a56b4ca5847b 100644
--- a/src/main/java/org/bukkit/inventory/ShapedRecipe.java
+++ b/src/main/java/org/bukkit/inventory/ShapedRecipe.java
@@ -178,14 +178,15 @@ public class ShapedRecipe extends CraftingRecipe {
Preconditions.checkArgument(key != ' ', "Space in recipe shape must represent no ingredient");
Preconditions.checkArgument(ingredients.containsKey(key), "Symbol does not appear in the shape:", key);
- ingredients.put(key, ingredient);
+ ingredients.put(key, ingredient.validate(false).clone()); // Paper
return this;
}
// Paper start
@NotNull
public ShapedRecipe setIngredient(char key, @NotNull ItemStack item) {
- return setIngredient(key, new RecipeChoice.ExactChoice(item));
+ Preconditions.checkArgument(!item.getType().isAir(), "Item cannot be air"); // Paper
+ return setIngredient(key, new RecipeChoice.ExactChoice(item.clone())); // Paper
}
// Paper end
diff --git a/src/main/java/org/bukkit/inventory/ShapelessRecipe.java b/src/main/java/org/bukkit/inventory/ShapelessRecipe.java
index 3bf5064cd6ceb05ea98b18993da46c67be140115..79db6dbc0367de2eaa397674624c765d5aeb8fa5 100644
--- a/src/main/java/org/bukkit/inventory/ShapelessRecipe.java
+++ b/src/main/java/org/bukkit/inventory/ShapelessRecipe.java
@@ -132,7 +132,7 @@ public class ShapelessRecipe extends CraftingRecipe {
public ShapelessRecipe addIngredient(@NotNull RecipeChoice ingredient) {
Preconditions.checkArgument(ingredients.size() + 1 <= 9, "Shapeless recipes cannot have more than 9 ingredients");
- ingredients.add(ingredient);
+ ingredients.add(ingredient.validate(false).clone()); // Paper
return this;
}
@@ -145,6 +145,8 @@ public class ShapelessRecipe extends CraftingRecipe {
@NotNull
public ShapelessRecipe addIngredient(int count, @NotNull ItemStack item) {
Preconditions.checkArgument(ingredients.size() + count <= 9, "Shapeless recipes cannot have more than 9 ingredients");
+ Preconditions.checkArgument(!item.getType().isAir(), "Item cannot be air"); // Paper
+ item = item.clone(); // Paper
while (count-- > 0) {
ingredients.add(new RecipeChoice.ExactChoice(item));
}
diff --git a/src/main/java/org/bukkit/inventory/SmithingRecipe.java b/src/main/java/org/bukkit/inventory/SmithingRecipe.java
index ee462ca9fd3e0ddcdb0fffd5dba91d82fa6ad08f..0fb110a995bddcdf09b1902784e43cbe67510fba 100644
--- a/src/main/java/org/bukkit/inventory/SmithingRecipe.java
+++ b/src/main/java/org/bukkit/inventory/SmithingRecipe.java
@@ -45,12 +45,13 @@ public class SmithingRecipe implements Recipe, Keyed {
*/
@Deprecated
public SmithingRecipe(@NotNull NamespacedKey key, @NotNull ItemStack result, @Nullable RecipeChoice base, @Nullable RecipeChoice addition, boolean copyDataComponents) {
+ com.google.common.base.Preconditions.checkArgument(!result.isEmpty() || this instanceof ComplexRecipe, "Recipe cannot have an empty result."); // Paper
this.copyDataComponents = copyDataComponents;
// Paper end
this.key = key;
this.result = result;
- this.base = base;
- this.addition = addition;
+ this.base = base == null ? RecipeChoice.empty() : base.validate(true).clone(); // Paper
+ this.addition = addition == null ? RecipeChoice.empty() : addition.validate(true).clone(); // Paper
}
/**
@@ -58,7 +59,7 @@ public class SmithingRecipe implements Recipe, Keyed {
*
* @return base choice
*/
- @Nullable
+ @NotNull // Paper - fix issues with recipe api
public RecipeChoice getBase() {
return (base != null) ? base.clone() : null;
}
@@ -68,7 +69,7 @@ public class SmithingRecipe implements Recipe, Keyed {
*
* @return addition choice
*/
- @Nullable
+ @NotNull // Paper - fix issues with recipe api
public RecipeChoice getAddition() {
return (addition != null) ? addition.clone() : null;
}
diff --git a/src/main/java/org/bukkit/inventory/SmithingTransformRecipe.java b/src/main/java/org/bukkit/inventory/SmithingTransformRecipe.java
index e5726da0507ee70cb9dd76c57da6a8442e771307..1ca5058ee3bf75e1f70c8bc33842b466f65a6240 100644
--- a/src/main/java/org/bukkit/inventory/SmithingTransformRecipe.java
+++ b/src/main/java/org/bukkit/inventory/SmithingTransformRecipe.java
@@ -16,13 +16,13 @@ public class SmithingTransformRecipe extends SmithingRecipe {
*
* @param key The unique recipe key
* @param result The item you want the recipe to create.
- * @param template The template item.
- * @param base The base ingredient
- * @param addition The addition ingredient
+ * @param template The template item ({@link RecipeChoice#empty()} can be used)
+ * @param base The base ingredient ({@link RecipeChoice#empty()} can be used)
+ * @param addition The addition ingredient ({@link RecipeChoice#empty()} can be used)
*/
- public SmithingTransformRecipe(@NotNull NamespacedKey key, @NotNull ItemStack result, @Nullable RecipeChoice template, @Nullable RecipeChoice base, @Nullable RecipeChoice addition) {
+ public SmithingTransformRecipe(@NotNull NamespacedKey key, @NotNull ItemStack result, @NotNull RecipeChoice template, @NotNull RecipeChoice base, @NotNull RecipeChoice addition) { // Paper - fix issues with recipe api - prevent null choices
super(key, result, base, addition);
- this.template = template;
+ this.template = template == null ? RecipeChoice.empty() : template.validate(true).clone(); // Paper - fix issues with recipe api - prevent null choices
}
// Paper start
/**
@@ -30,14 +30,14 @@ public class SmithingTransformRecipe extends SmithingRecipe {
*
* @param key The unique recipe key
* @param result The item you want the recipe to create.
- * @param template The template item.
- * @param base The base ingredient
- * @param addition The addition ingredient
+ * @param template The template item ({@link RecipeChoice#empty()} can be used)
+ * @param base The base ingredient ({@link RecipeChoice#empty()} can be used)
+ * @param addition The addition ingredient ({@link RecipeChoice#empty()} can be used)
* @param copyDataComponents whether to copy the data components from the input base item to the output
*/
- public SmithingTransformRecipe(@NotNull NamespacedKey key, @NotNull ItemStack result, @Nullable RecipeChoice template, @Nullable RecipeChoice base, @Nullable RecipeChoice addition, boolean copyDataComponents) {
+ public SmithingTransformRecipe(@NotNull NamespacedKey key, @NotNull ItemStack result, @NotNull RecipeChoice template, @NotNull RecipeChoice base, @NotNull RecipeChoice addition, boolean copyDataComponents) {
super(key, result, base, addition, copyDataComponents);
- this.template = template;
+ this.template = template == null ? RecipeChoice.empty() : template.validate(true).clone(); // Paper - fix issues with recipe api - prevent null choices
}
// Paper end
@@ -46,7 +46,7 @@ public class SmithingTransformRecipe extends SmithingRecipe {
*
* @return template choice
*/
- @Nullable
+ @NotNull // Paper - fix issues with recipe api - prevent null choices
public RecipeChoice getTemplate() {
return (template != null) ? template.clone() : null;
}
diff --git a/src/main/java/org/bukkit/inventory/SmithingTrimRecipe.java b/src/main/java/org/bukkit/inventory/SmithingTrimRecipe.java
index 232aa8aeef9e34146e413e56b3681919c8850687..a8e125ef6dd9e8d6af74b68088df91d4c2ea7a8a 100644
--- a/src/main/java/org/bukkit/inventory/SmithingTrimRecipe.java
+++ b/src/main/java/org/bukkit/inventory/SmithingTrimRecipe.java
@@ -16,27 +16,27 @@ public class SmithingTrimRecipe extends SmithingRecipe implements ComplexRecipe
* Create a smithing recipe to produce the specified result ItemStack.
*
* @param key The unique recipe key
- * @param template The template item.
- * @param base The base ingredient
- * @param addition The addition ingredient
+ * @param template The template item ({@link RecipeChoice#empty()} can be used)
+ * @param base The base ingredient ({@link RecipeChoice#empty()} can be used)
+ * @param addition The addition ingredient ({@link RecipeChoice#empty()} can be used)
*/
- public SmithingTrimRecipe(@NotNull NamespacedKey key, @Nullable RecipeChoice template, @Nullable RecipeChoice base, @Nullable RecipeChoice addition) {
+ public SmithingTrimRecipe(@NotNull NamespacedKey key, @NotNull RecipeChoice template, @NotNull RecipeChoice base, @NotNull RecipeChoice addition) { // Paper - fix issues with recipe api - prevent null choices
super(key, new ItemStack(Material.AIR), base, addition);
- this.template = template;
+ this.template = template == null ? RecipeChoice.empty() : template.validate(true).clone(); // Paper
}
// Paper start
/**
* Create a smithing recipe to produce the specified result ItemStack.
*
* @param key The unique recipe key
- * @param template The template item.
- * @param base The base ingredient
- * @param addition The addition ingredient
+ * @param template The template item. ({@link RecipeChoice#empty()} can be used)
+ * @param base The base ingredient ({@link RecipeChoice#empty()} can be used)
+ * @param addition The addition ingredient ({@link RecipeChoice#empty()} can be used)
* @param copyDataComponents whether to copy the data components from the input base item to the output
*/
- public SmithingTrimRecipe(@NotNull NamespacedKey key, @NotNull RecipeChoice template, @NotNull RecipeChoice base, @NotNull RecipeChoice addition, boolean copyDataComponents) {
+ public SmithingTrimRecipe(@NotNull NamespacedKey key, @NotNull RecipeChoice template, @NotNull RecipeChoice base, @NotNull RecipeChoice addition, boolean copyDataComponents) { // Paper - fix issues with recipe api - prevent null choices
super(key, new ItemStack(Material.AIR), base, addition, copyDataComponents);
- this.template = template;
+ this.template = template == null ? RecipeChoice.empty() : template.validate(true).clone(); // Paper
}
// Paper end
@@ -45,7 +45,7 @@ public class SmithingTrimRecipe extends SmithingRecipe implements ComplexRecipe
*
* @return template choice
*/
- @Nullable
+ @NotNull // Paper - fix issues with recipe api - prevent null choices
public RecipeChoice getTemplate() {
return (template != null) ? template.clone() : null;
}
diff --git a/src/main/java/org/bukkit/inventory/StonecuttingRecipe.java b/src/main/java/org/bukkit/inventory/StonecuttingRecipe.java
index bc3440eb72127824b3961fbdae583bb61385f65e..17b33f8e6e3dc6a22686a498fa944382e8767077 100644
--- a/src/main/java/org/bukkit/inventory/StonecuttingRecipe.java
+++ b/src/main/java/org/bukkit/inventory/StonecuttingRecipe.java
@@ -35,10 +35,10 @@ public class StonecuttingRecipe implements Recipe, Keyed {
* @param input The input choices.
*/
public StonecuttingRecipe(@NotNull NamespacedKey key, @NotNull ItemStack result, @NotNull RecipeChoice input) {
- Preconditions.checkArgument(result.getType() != Material.AIR, "Recipe must have non-AIR result.");
+ Preconditions.checkArgument(!result.isEmpty(), "Recipe cannot have an empty result."); // Paper
this.key = key;
this.output = new ItemStack(result);
- this.ingredient = input;
+ this.ingredient = input.validate(false).clone(); // Paper
}
/**
@@ -73,7 +73,7 @@ public class StonecuttingRecipe implements Recipe, Keyed {
*/
@NotNull
public StonecuttingRecipe setInputChoice(@NotNull RecipeChoice input) {
- this.ingredient = input;
+ this.ingredient = input.validate(false).clone(); // Paper
return (StonecuttingRecipe) this;
}
diff --git a/src/main/java/org/bukkit/inventory/TransmuteRecipe.java b/src/main/java/org/bukkit/inventory/TransmuteRecipe.java
index 5a8616792ade898c702daf471a2511c0f467df5c..8484b045ce4bf5292cda7d512c5ee3a86480049b 100644
--- a/src/main/java/org/bukkit/inventory/TransmuteRecipe.java
+++ b/src/main/java/org/bukkit/inventory/TransmuteRecipe.java
@@ -26,8 +26,8 @@ public class TransmuteRecipe extends CraftingRecipe implements ComplexRecipe {
*/
public TransmuteRecipe(@NotNull NamespacedKey key, @NotNull Material result, @NotNull RecipeChoice input, @NotNull RecipeChoice material) {
super(key, checkResult(new ItemStack(result)));
- this.input = input;
- this.material = material;
+ this.input = input.validate(false).clone(); // Paper
+ this.material = material.validate(false).clone(); // Paper
}
/**
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