PaperMC/Spigot-API-Patches/0166-Change-the-reserved-channel-check-to-be-sensible.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: DoNotSpamPls <7570108+DoNotSpamPls@users.noreply.github.com>
Date: Tue, 23 Oct 2018 19:32:55 +0300
Subject: [PATCH] Change the reserved channel check to be sensible


diff --git a/src/main/java/org/bukkit/plugin/messaging/StandardMessenger.java b/src/main/java/org/bukkit/plugin/messaging/StandardMessenger.java
index 1d061412cdafa28c6940c7433747ab1dabe23de1..6fda7f3aa68e76af64362e9afed70fc6a5e92986 100644
--- a/src/main/java/org/bukkit/plugin/messaging/StandardMessenger.java
+++ b/src/main/java/org/bukkit/plugin/messaging/StandardMessenger.java
@@ -172,7 +172,7 @@ public class StandardMessenger implements Messenger {
     public boolean isReservedChannel(@NotNull String channel) {
         channel = validateAndCorrectChannel(channel);
 
-        return channel.contains("minecraft") && !channel.equals("minecraft:brand");
+        return channel.equals("minecraft:register") || channel.equals("minecraft:unregister"); // Paper
     }
 
     @Override
diff --git a/src/test/java/org/bukkit/plugin/messaging/StandardMessengerTest.java b/src/test/java/org/bukkit/plugin/messaging/StandardMessengerTest.java
index dce3d619a6f1791197e44277c2dee9eaf19ff56f..7e2335ed8acc692af1e70eddcf97ee7a56e30f68 100644
--- a/src/test/java/org/bukkit/plugin/messaging/StandardMessengerTest.java
+++ b/src/test/java/org/bukkit/plugin/messaging/StandardMessengerTest.java
@@ -25,8 +25,8 @@ public class StandardMessengerTest {
         assertTrue(messenger.isReservedChannel("minecraft:register"));
         assertFalse(messenger.isReservedChannel("test:register"));
         assertTrue(messenger.isReservedChannel("minecraft:unregister"));
-        assertFalse(messenger.isReservedChannel("test:nregister"));
-        assertTrue(messenger.isReservedChannel("minecraft:something"));
+        assertFalse(messenger.isReservedChannel("test:unregister")); // Paper - fix typo
+        assertFalse(messenger.isReservedChannel("minecraft:something")); // Paper - now less strict
         assertFalse(messenger.isReservedChannel("minecraft:brand"));
     }