mirror of
https://github.com/AtlasMediaGroup/Scissors.git
synced 2024-08-30 19:38:13 +00:00
164 lines
9.2 KiB
Diff
164 lines
9.2 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Luna <lunahatesgogle@gmail.com>
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Date: Wed, 31 May 2023 18:14:00 -0300
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Subject: [PATCH] Add depth limit to Component deserializer
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diff --git a/src/main/java/me/totalfreedom/scissors/ScissorsConfig.java b/src/main/java/me/totalfreedom/scissors/ScissorsConfig.java
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index 39b56ca496ed7369ead21805d476c2b813fcdd1d..9659cff6412584190ff0c32e01f602de4ff7d3b3 100644
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--- a/src/main/java/me/totalfreedom/scissors/ScissorsConfig.java
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+++ b/src/main/java/me/totalfreedom/scissors/ScissorsConfig.java
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@@ -87,8 +87,8 @@ public class ScissorsConfig
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config.options().header(HEADER);
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config.options().copyDefaults(true);
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- version = getInt("config-version", 4);
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- set("config-version", 4);
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+ version = getInt("config-version", 5);
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+ set("config-version", 5);
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readConfig(ScissorsConfig.class, null);
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}
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@@ -175,6 +175,12 @@ public class ScissorsConfig
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excludePlayersFromNbtComponents = getBoolean("excludePlayersFromNbtComponents", false);
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}
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+ public static int componentDepthLimit = 128;
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+ private static void componentDepthLimit()
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+ {
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+ componentDepthLimit = getInt("componentDepthLimit", 128);
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+ }
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+
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private static void set(String path, Object val)
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{
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config.set(path, val);
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diff --git a/src/main/java/net/minecraft/network/chat/Component.java b/src/main/java/net/minecraft/network/chat/Component.java
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index 9c2c22ee548ad77f0912698f33de5f467f32fb7f..ba2879b25e59290ab81501458414a417c121ed03 100644
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--- a/src/main/java/net/minecraft/network/chat/Component.java
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+++ b/src/main/java/net/minecraft/network/chat/Component.java
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@@ -26,6 +26,7 @@ import java.util.List;
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import java.util.Map.Entry;
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import java.util.Optional;
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import javax.annotation.Nullable;
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+import me.totalfreedom.scissors.ScissorsConfig; // Scissors
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import net.minecraft.ChatFormatting;
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import net.minecraft.Util;
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import net.minecraft.network.chat.contents.BlockDataSource;
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@@ -44,6 +45,7 @@ import net.minecraft.util.GsonHelper;
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import net.minecraft.util.LowerCaseEnumTypeAdapterFactory;
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// CraftBukkit start
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import com.google.common.collect.Streams;
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+import java.util.regex.Pattern; // Scissors
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import java.util.stream.Stream;
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// CraftBukkit end
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@@ -254,10 +256,16 @@ public interface Component extends Message, FormattedText, Iterable<Component> {
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throw new IllegalStateException("Couldn't get field 'lineStart' for JsonReader", nosuchfieldexception);
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}
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});
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+ private static final Pattern PLACEHOLDER_PATTERN = Pattern.compile("%[0-9]+\\$s"); // Scissors
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public Serializer() {}
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- public MutableComponent deserialize(JsonElement jsonelement, Type type, JsonDeserializationContext jsondeserializationcontext) throws JsonParseException {
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+ // Scissors start
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+ private MutableComponent deserialize(JsonElement jsonelement, JsonDeserializationContext jsondeserializationcontext, int depth) throws JsonParseException {
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+ if (depth > ScissorsConfig.componentDepthLimit) {
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+ throw new JsonParseException("Depth limit exceeded");
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+ }
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+
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if (jsonelement.isJsonPrimitive()) {
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return Component.literal(jsonelement.getAsString());
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} else {
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@@ -266,18 +274,16 @@ public interface Component extends Message, FormattedText, Iterable<Component> {
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if (!jsonelement.isJsonObject()) {
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if (jsonelement.isJsonArray()) {
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JsonArray jsonarray = jsonelement.getAsJsonArray();
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- // Scissors start
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if (jsonarray.size() <= 0) {
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throw new JsonParseException("Unexpected empty array of components");
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}
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- // Scissors end
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ichatmutablecomponent = null;
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Iterator iterator = jsonarray.iterator();
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while (iterator.hasNext()) {
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JsonElement jsonelement1 = (JsonElement) iterator.next();
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- MutableComponent ichatmutablecomponent1 = this.deserialize(jsonelement1, jsonelement1.getClass(), jsondeserializationcontext);
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+ MutableComponent ichatmutablecomponent1 = this.deserialize(jsonelement1, jsondeserializationcontext, depth + 1);
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if (ichatmutablecomponent == null) {
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ichatmutablecomponent = ichatmutablecomponent1;
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@@ -301,12 +307,17 @@ public interface Component extends Message, FormattedText, Iterable<Component> {
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s = GsonHelper.getAsString(jsonobject, "translate");
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String s1 = GsonHelper.getAsString(jsonobject, "fallback", (String) null);
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+ // Penalize depth for placeholders in translate & fallback
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+ long translate_placeholders = PLACEHOLDER_PATTERN.matcher(s).results().count();
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+ long fallback_placeholders = s1 != null ? PLACEHOLDER_PATTERN.matcher(s1).results().count() : 0;
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+ int penalty = (int)Math.max(translate_placeholders, fallback_placeholders) * 12;
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+
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if (jsonobject.has("with")) {
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JsonArray jsonarray1 = GsonHelper.getAsJsonArray(jsonobject, "with");
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Object[] aobject = new Object[jsonarray1.size()];
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for (int i = 0; i < aobject.length; ++i) {
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- aobject[i] = Serializer.unwrapTextArgument(this.deserialize(jsonarray1.get(i), type, jsondeserializationcontext));
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+ aobject[i] = Serializer.unwrapTextArgument(this.deserialize(jsonarray1.get(i), jsondeserializationcontext, depth + 1 + penalty));
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}
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ichatmutablecomponent = Component.translatableWithFallback(s, s1, aobject);
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@@ -322,7 +333,7 @@ public interface Component extends Message, FormattedText, Iterable<Component> {
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ichatmutablecomponent = Component.score(GsonHelper.getAsString(jsonobject1, "name"), GsonHelper.getAsString(jsonobject1, "objective"));
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} else if (jsonobject.has("selector")) {
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- Optional<Component> optional = this.parseSeparator(type, jsondeserializationcontext, jsonobject);
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+ Optional<Component> optional = this.parseSeparator(jsondeserializationcontext, jsonobject, depth + 1);
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ichatmutablecomponent = Component.selector(GsonHelper.getAsString(jsonobject, "selector"), optional);
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} else if (jsonobject.has("keybind")) {
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@@ -333,7 +344,7 @@ public interface Component extends Message, FormattedText, Iterable<Component> {
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}
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s = GsonHelper.getAsString(jsonobject, "nbt");
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- Optional<Component> optional1 = this.parseSeparator(type, jsondeserializationcontext, jsonobject);
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+ Optional<Component> optional1 = this.parseSeparator(jsondeserializationcontext, jsonobject, depth + 1);
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boolean flag = GsonHelper.getAsBoolean(jsonobject, "interpret", false);
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Object object;
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@@ -360,7 +371,7 @@ public interface Component extends Message, FormattedText, Iterable<Component> {
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}
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for (int j = 0; j < jsonarray2.size(); ++j) {
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- ichatmutablecomponent.append((Component) this.deserialize(jsonarray2.get(j), type, jsondeserializationcontext));
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+ ichatmutablecomponent.append((Component) this.deserialize(jsonarray2.get(j), jsondeserializationcontext, depth + 1));
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}
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}
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@@ -370,6 +381,11 @@ public interface Component extends Message, FormattedText, Iterable<Component> {
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}
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}
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+ public MutableComponent deserialize(JsonElement jsonelement, Type type, JsonDeserializationContext jsondeserializationcontext) throws JsonParseException {
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+ return this.deserialize(jsonelement, jsondeserializationcontext, 1);
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+ }
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+ // Scissors end
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+
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private static Object unwrapTextArgument(Object text) {
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if (text instanceof Component) {
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Component ichatbasecomponent = (Component) text;
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@@ -388,8 +404,10 @@ public interface Component extends Message, FormattedText, Iterable<Component> {
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return text;
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}
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- private Optional<Component> parseSeparator(Type type, JsonDeserializationContext context, JsonObject json) {
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- return json.has("separator") ? Optional.of(this.deserialize(json.get("separator"), type, context)) : Optional.empty();
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+ // Scissors start
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+ private Optional<Component> parseSeparator(JsonDeserializationContext context, JsonObject json, int depth) {
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+ return json.has("separator") ? Optional.of(this.deserialize(json.get("separator"), context, depth + 1)) : Optional.empty();
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+ // Scissors end
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}
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private void serializeStyle(Style style, JsonObject json, JsonSerializationContext context) {
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