Paper/patches/server/0439-Fix-regex-mistake-in-CB-NBT-int-deserialization.patch
Jake Potrebic 7c2dc4b342
Use Codecs for adventure Component conversions & network serialization (#10014)
* finish implementing all adventure components in codecs

* add some initial tests

* Add round trip tests for text and translatable components

* Add more round trip test data (score component is failing)

* Add more round trip test data

* Fix SCORE_COMPONENT_MAP_CODEC

* Improve test failure messages

* Add failure cases

* Add a couple more test data

* Make use of AdventureCodecs

* Update patches after rebase

* Squash changes into adventure patch

* Fix AT formatting

* update comment

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Co-authored-by: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
2023-12-11 22:02:06 -08:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: mbax <matt@phozop.net>
Date: Mon, 17 Aug 2020 12:17:37 -0400
Subject: [PATCH] Fix regex mistake in CB NBT int deserialization
The existing regex is too open and allows for the absence of any actual
number data, detecting an NBT entry of just the letter "i" in upper or
lower case. This causes a single-character NBT entry to be processed as
an integer ending in "i", passing an empty String to to Integer.parseInt,
triggering an exception in loading the item.
This commit forces numbers to be present prior to the ending "i"
letter.
diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftNBTTagConfigSerializer.java b/src/main/java/org/bukkit/craftbukkit/util/CraftNBTTagConfigSerializer.java
index 2cfa312aec7fe513b9f0e517fa935cd8aceeb868..eea35e63fcbb598b6c89625e69160a46891ceb5f 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/CraftNBTTagConfigSerializer.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftNBTTagConfigSerializer.java
@@ -20,7 +20,7 @@ import org.jetbrains.annotations.NotNull;
public class CraftNBTTagConfigSerializer {
private static final Pattern ARRAY = Pattern.compile("^\\[.*]");
- private static final Pattern INTEGER = Pattern.compile("[-+]?(?:0|[1-9][0-9]*)?i", Pattern.CASE_INSENSITIVE);
+ private static final Pattern INTEGER = Pattern.compile("[-+]?(?:0|[1-9][0-9]*)i", Pattern.CASE_INSENSITIVE); // Paper - fix regex
private static final Pattern DOUBLE = Pattern.compile("[-+]?(?:[0-9]+[.]?|[0-9]*[.][0-9]+)(?:e[-+]?[0-9]+)?d", Pattern.CASE_INSENSITIVE);
private static final TagParser MOJANGSON_PARSER = new TagParser(new StringReader(""));