Waterfall/BungeeCord-Patches/0022-Validate-that-chat-messages-are-non-blank.patch

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From 88834135061418ae8c007a335e2c0e5772f52ce5 Mon Sep 17 00:00:00 2001
From: Tux <write@imaginarycode.com>
Date: Tue, 25 Oct 2016 12:34:41 -0400
Subject: [PATCH] Validate that chat messages are non-blank
diff --git a/proxy/src/main/java/net/md_5/bungee/connection/UpstreamBridge.java b/proxy/src/main/java/net/md_5/bungee/connection/UpstreamBridge.java
index 6acbf7bf..05e3bd21 100644
--- a/proxy/src/main/java/net/md_5/bungee/connection/UpstreamBridge.java
+++ b/proxy/src/main/java/net/md_5/bungee/connection/UpstreamBridge.java
@@ -199,6 +199,7 @@ public class UpstreamBridge extends PacketHandler
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private String handleChat(String message)
{
+ boolean empty = true;
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for ( int index = 0, length = message.length(); index < length; index++ )
{
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char c = message.charAt( index );
@@ -206,8 +207,14 @@ public class UpstreamBridge extends PacketHandler
{
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con.disconnect( bungee.getTranslation( "illegal_chat_characters", Util.unicode( c ) ) );
throw CancelSendSignal.INSTANCE;
+ } else if (empty && !Character.isWhitespace(c)) {
+ empty = false;
}
}
+ if (empty) {
+ con.disconnect("Chat message is empty");
+ throw CancelSendSignal.INSTANCE;
+ }
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ChatEvent chatEvent = new ChatEvent( con, con.getServer(), message );
if ( !bungee.getPluginManager().callEvent( chatEvent ).isCancelled() )
--
2.42.1