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32 lines
2.0 KiB
Diff
32 lines
2.0 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: 0x22 <0x22@futureclient.net>
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Date: Thu, 26 Apr 2018 04:41:11 -0400
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Subject: [PATCH] Fix exploit that allowed colored signs to be created
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diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
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index 30bdf7dff8fc611677b95918574d4ad42ddf1c6c..7dd7289941253991d0a2aa22f9b058c116c14e82 100644
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--- a/src/main/java/net/minecraft/server/PlayerConnection.java
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+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
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@@ -2633,7 +2633,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
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String[] lines = new String[4];
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for (int i = 0; i < list.size(); ++i) {
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- lines[i] = EnumChatFormat.a(new ChatComponentText(EnumChatFormat.a((String) list.get(i))).getString());
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+ lines[i] = SharedConstants.filterAllowedChatCharacters(list.get(i)); // Paper - Replaced with anvil color stripping method to stop exploits that allow colored signs to be created.
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}
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SignChangeEvent event = new SignChangeEvent((org.bukkit.craftbukkit.block.CraftBlock) player.getWorld().getBlockAt(x, y, z), this.server.getPlayer(this.player), lines);
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this.server.getPluginManager().callEvent(event);
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diff --git a/src/main/java/net/minecraft/server/SharedConstants.java b/src/main/java/net/minecraft/server/SharedConstants.java
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index 9663e8c10662c9660964afda62d8a65812fae69d..470690dbe19db1622eca44f6801ece37d7ad7426 100644
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--- a/src/main/java/net/minecraft/server/SharedConstants.java
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+++ b/src/main/java/net/minecraft/server/SharedConstants.java
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@@ -19,6 +19,7 @@ public class SharedConstants {
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return c0 != 167 && c0 >= ' ' && c0 != 127;
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}
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+ public static String filterAllowedChatCharacters(String input) { return a(input); } // Paper - OBFHELPER
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public static String a(String s) {
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StringBuilder stringbuilder = new StringBuilder();
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char[] achar = s.toCharArray();
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