From 5b02ca8a642963c50b8b6d925b54cee0372487d1 Mon Sep 17 00:00:00 2001
From: "Dylan K. Taylor" <odigiman@gmail.com>
Date: Wed, 3 Jul 2019 14:34:22 +0100
Subject: [PATCH] InGamePacketHandler: return unhandled for command requests
 without a leading /

some clients send things without the /, f.e. websocket stuff, and we aren't ready to handle that properly yet. The result is that the command gets dumped directly into the chat instead of being unhandled.
---
 .../network/mcpe/handler/InGamePacketHandler.php           | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/pocketmine/network/mcpe/handler/InGamePacketHandler.php b/src/pocketmine/network/mcpe/handler/InGamePacketHandler.php
index 48129dd3e..3ef0dc519 100644
--- a/src/pocketmine/network/mcpe/handler/InGamePacketHandler.php
+++ b/src/pocketmine/network/mcpe/handler/InGamePacketHandler.php
@@ -92,6 +92,7 @@ use function json_last_error_msg;
 use function microtime;
 use function preg_match;
 use function preg_split;
+use function strpos;
 use function trim;
 
 /**
@@ -589,7 +590,11 @@ class InGamePacketHandler extends PacketHandler{
 	}
 
 	public function handleCommandRequest(CommandRequestPacket $packet) : bool{
-		return $this->player->chat($packet->command);
+		if(strpos($packet->command, '/') === 0){
+			$this->player->chat($packet->command);
+			return true;
+		}
+		return false;
 	}
 
 	public function handleCommandBlockUpdate(CommandBlockUpdatePacket $packet) : bool{