From 0c7bb316c7df0be7b99b492d2b22b84425c87b09 Mon Sep 17 00:00:00 2001
From: 1F616EMO~nya <root@1f616emo.xyz>
Date: Tue, 2 Jul 2024 18:32:19 +0800
Subject: [PATCH] Check for digiline message field type (#670)

---
 mesecons_detector/init.lua | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mesecons_detector/init.lua b/mesecons_detector/init.lua
index ad8705e..6ed16bf 100644
--- a/mesecons_detector/init.lua
+++ b/mesecons_detector/init.lua
@@ -223,10 +223,10 @@ local node_detector_digiline = {
 
 			if type(msg) == "table" then
 				if msg.distance or msg.scanname then
-					if msg.distance then
+					if type(msg.distance) == "string" then
 						meta:set_string("distance", msg.distance)
 					end
-					if msg.scanname then
+					if type(msg.scanname) == "string" then
 						meta:set_string("scanname", msg.scanname)
 					end
 					node_detector_make_formspec(pos)
@@ -240,7 +240,7 @@ local node_detector_digiline = {
 			else
 				if msg == GET_COMMAND then
 					node_detector_send_node_name(pos, node, channel, meta)
-				else
+				elseif type(msg) == "string" then
 					meta:set_string("scanname", msg)
 					node_detector_make_formspec(pos)
 				end