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31 lines
2 KiB
Diff
31 lines
2 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 ab6d99493b6284b5ae1d7255446ea27f1db5a834..cb9257d66a28ddd30c5e54808c044cd1e10b8a4a 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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@@ -2634,7 +2634,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
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List<net.kyori.adventure.text.Component> lines = new java.util.ArrayList<>();
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for (int i = 0; i < list.size(); ++i) {
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- lines.add(net.kyori.adventure.text.Component.text(list.get(i)));
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+ lines.add(net.kyori.adventure.text.Component.text(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.at(worldserver, blockposition), this.getPlayer(), 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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