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28 lines
1.7 KiB
Diff
28 lines
1.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: mbax <matt@phozop.net>
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Date: Mon, 17 Aug 2020 12:17:37 -0400
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Subject: [PATCH] Fix regex mistake in CB NBT int deserialization
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The existing regex is too open and allows for the absence of any actual
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number data, detecting an NBT entry of just the letter "i" in upper or
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lower case. This causes a single-character NBT entry to be processed as
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an integer ending in "i", passing an empty String to to Integer.parseInt,
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triggering an exception in loading the item.
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This commit forces numbers to be present prior to the ending "i"
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letter.
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diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftNBTTagConfigSerializer.java b/src/main/java/org/bukkit/craftbukkit/util/CraftNBTTagConfigSerializer.java
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index be9686a4240acf24a9ee022cff6ba848524b4498..1d282b1f3cf968364474ce5700bc95ebc46b9f1c 100644
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--- a/src/main/java/org/bukkit/craftbukkit/util/CraftNBTTagConfigSerializer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftNBTTagConfigSerializer.java
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@@ -18,7 +18,7 @@ import org.jetbrains.annotations.NotNull;
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public class CraftNBTTagConfigSerializer {
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private static final Pattern ARRAY = Pattern.compile("^\\[.*]");
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- private static final Pattern INTEGER = Pattern.compile("[-+]?(?:0|[1-9][0-9]*)?i", Pattern.CASE_INSENSITIVE);
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+ private static final Pattern INTEGER = Pattern.compile("[-+]?(?:0|[1-9][0-9]*)i", Pattern.CASE_INSENSITIVE); // Paper - fix regex
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private static final Pattern DOUBLE = Pattern.compile("[-+]?(?:[0-9]+[.]?|[0-9]*[.][0-9]+)(?:e[-+]?[0-9]+)?d", Pattern.CASE_INSENSITIVE);
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private static final TagParser MOJANGSON_PARSER = new TagParser(new StringReader(""));
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