From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: 0x22 <0x22@futureclient.net> Date: Thu, 26 Apr 2018 04:41:11 -0400 Subject: [PATCH] Fix exploit that allowed colored signs to be created diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java index c3651ff73c0831f0dd727f6358aa45fbaeebfb1d..f92a1d69119af0c6baee83cd96c344695f23dc3c 100644 --- a/src/main/java/net/minecraft/server/PlayerConnection.java +++ b/src/main/java/net/minecraft/server/PlayerConnection.java @@ -2631,7 +2631,7 @@ public class PlayerConnection implements PacketListenerPlayIn { String[] lines = new String[4]; for (int i = 0; i < list.size(); ++i) { - lines[i] = EnumChatFormat.a(new ChatComponentText(EnumChatFormat.a((String) list.get(i))).getString()); + lines[i] = SharedConstants.filterAllowedChatCharacters(list.get(i)); // Paper - Replaced with anvil color stripping method to stop exploits that allow colored signs to be created. } SignChangeEvent event = new SignChangeEvent((org.bukkit.craftbukkit.block.CraftBlock) player.getWorld().getBlockAt(x, y, z), this.server.getPlayer(this.player), lines); this.server.getPluginManager().callEvent(event); diff --git a/src/main/java/net/minecraft/server/SharedConstants.java b/src/main/java/net/minecraft/server/SharedConstants.java index 9663e8c10662c9660964afda62d8a65812fae69d..470690dbe19db1622eca44f6801ece37d7ad7426 100644 --- a/src/main/java/net/minecraft/server/SharedConstants.java +++ b/src/main/java/net/minecraft/server/SharedConstants.java @@ -19,6 +19,7 @@ public class SharedConstants { return c0 != 167 && c0 >= ' ' && c0 != 127; } + public static String filterAllowedChatCharacters(String input) { return a(input); } // Paper - OBFHELPER public static String a(String s) { StringBuilder stringbuilder = new StringBuilder(); char[] achar = s.toCharArray();