116 Zeilen
4.4 KiB
Diff
116 Zeilen
4.4 KiB
Diff
From ed973083147e379a9f5c7d279371bcbee8479fc0 Mon Sep 17 00:00:00 2001
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From: Thinkofdeath <thinkofdeath@spigotmc.org>
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Date: Wed, 2 Jul 2014 23:35:51 +0100
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Subject: [PATCH] Better item validation
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diff --git a/src/main/java/net/minecraft/server/PacketDataSerializer.java b/src/main/java/net/minecraft/server/PacketDataSerializer.java
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index 9655e74..ede4fe2 100644
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--- a/src/main/java/net/minecraft/server/PacketDataSerializer.java
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+++ b/src/main/java/net/minecraft/server/PacketDataSerializer.java
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@@ -213,6 +213,10 @@ public class PacketDataSerializer extends ByteBuf {
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NBTTagCompound nbttagcompound = null;
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if (itemstack.getItem().usesDurability() || itemstack.getItem().p()) {
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+ // Spigot start - filter
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+ itemstack = itemstack.cloneItemStack();
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+ CraftItemStack.setItemMeta(itemstack, CraftItemStack.getItemMeta(itemstack));
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+ // Spigot end
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nbttagcompound = itemstack.getTag();
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaBook.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaBook.java
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index 0318958..0b5ada0 100644
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--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaBook.java
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+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaBook.java
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@@ -22,6 +22,10 @@ import net.minecraft.server.IChatBaseComponent;
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import net.minecraft.server.NBTTagString;
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import org.bukkit.craftbukkit.util.CraftChatMessage;
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+// Spigot start
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+import static org.spigotmc.ValidateUtils.*;
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+// Spigot end
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+
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@DelegateDeserialization(SerializableMeta.class)
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public class CraftMetaBook extends CraftMetaItem implements BookMeta {
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static final ItemMetaKey BOOK_TITLE = new ItemMetaKey("title");
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@@ -57,11 +61,11 @@ public class CraftMetaBook extends CraftMetaItem implements BookMeta {
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super(tag);
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if (tag.hasKey(BOOK_TITLE.NBT)) {
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- this.title = tag.getString(BOOK_TITLE.NBT);
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+ this.title = limit( tag.getString(BOOK_TITLE.NBT), 1024 ); // Spigot
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}
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if (tag.hasKey(BOOK_AUTHOR.NBT)) {
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- this.author = tag.getString(BOOK_AUTHOR.NBT);
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+ this.author = limit( tag.getString(BOOK_AUTHOR.NBT), 1024 ); // Spigot
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}
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boolean resolved = false;
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@@ -86,7 +90,7 @@ public class CraftMetaBook extends CraftMetaItem implements BookMeta {
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// Ignore and treat as an old book
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}
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}
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- addPage(page);
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+ addPage( limit( page, 2048 ) ); // Spigot
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}
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}
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
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index e487d52..07ea6f6 100644
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--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
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+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
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@@ -47,6 +47,10 @@ import java.util.logging.Logger;
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import net.minecraft.server.NBTCompressedStreamTools;
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import org.apache.commons.codec.binary.Base64;
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+// Spigot start
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+import static org.spigotmc.ValidateUtils.*;
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+// Spigot end
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+
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/**
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* Children must include the following:
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*
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@@ -247,7 +251,7 @@ class CraftMetaItem implements ItemMeta, Repairable {
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NBTTagCompound display = tag.getCompound(DISPLAY.NBT);
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if (display.hasKey(NAME.NBT)) {
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- displayName = display.getString(NAME.NBT);
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+ displayName = limit( display.getString(NAME.NBT), 1024 ); // Spigot
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}
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if (display.hasKey(LORE.NBT)) {
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@@ -255,7 +259,7 @@ class CraftMetaItem implements ItemMeta, Repairable {
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lore = new ArrayList<String>(list.size());
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for (int index = 0; index < list.size(); index++) {
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- String line = list.getString(index);
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+ String line = limit( list.getString(index), 1024 ); // Spigot
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lore.add(line);
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}
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}
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diff --git a/src/main/java/org/spigotmc/ValidateUtils.java b/src/main/java/org/spigotmc/ValidateUtils.java
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new file mode 100644
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index 0000000..58a9534
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--- /dev/null
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+++ b/src/main/java/org/spigotmc/ValidateUtils.java
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@@ -0,0 +1,14 @@
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+package org.spigotmc;
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+
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+public class ValidateUtils
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+{
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+
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+ public static String limit(String str, int limit)
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+ {
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+ if ( str.length() > limit )
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+ {
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+ return str.substring( 0, limit );
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+ }
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+ return str;
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+ }
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+}
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--
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2.5.0
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