Paper/patches/server/0187-Fix-exploit-that-allowed-colored-signs-to-be-created.patch

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/world/level/block/entity/SignBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java
index cdaa050f237c6d6d5a0df0faf23daf3775249451..469d0046ba98289e98aa0f3f66e3ed27026a98a2 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java
@@ -202,9 +202,9 @@ public class SignBlockEntity extends BlockEntity {
             Style chatmodifier = signtext.getMessage(i, entityhuman.isTextFilteringEnabled()).getStyle();
 
             if (entityhuman.isTextFilteringEnabled()) {
-                signtext = signtext.setMessage(i, Component.literal(filteredtext.filteredOrEmpty()).setStyle(chatmodifier));
+                signtext = signtext.setMessage(i, Component.literal(net.minecraft.util.StringUtil.filterText(filteredtext.filteredOrEmpty())).setStyle(chatmodifier)); // Paper - filter sign text to chat only
             } else {
-                signtext = signtext.setMessage(i, Component.literal(filteredtext.raw()).setStyle(chatmodifier), Component.literal(filteredtext.filteredOrEmpty()).setStyle(chatmodifier));
+                signtext = signtext.setMessage(i, Component.literal(net.minecraft.util.StringUtil.filterText(filteredtext.raw())).setStyle(chatmodifier), Component.literal(net.minecraft.util.StringUtil.filterText(filteredtext.filteredOrEmpty())).setStyle(chatmodifier)); // Paper - filter sign text to chat only
             }
         }