From 4957e2e0003fd96163d5ad854210a0c35e967987 Mon Sep 17 00:00:00 2001
From: Amateur Audio Dude <168192910+AmateurAudioDude@users.noreply.github.com>
Date: Tue, 2 Dec 2025 19:45:02 +1100
Subject: [PATCH] TCP for server region latency check

---
 server/helpers.js | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/server/helpers.js b/server/helpers.js
index 2c8dd8c..ce3758c 100644
--- a/server/helpers.js
+++ b/server/helpers.js
@@ -240,19 +240,27 @@ function checkIPv6Support(callback) {
   });
 }
 
-function checkLatency(host) {
+function checkLatency(host, port = 80, timeout = 2000) {
   return new Promise(resolve => {
     const start = Date.now();
 
-    const req = http.get({ host, timeout: 2000 }, res => {
-      res.resume(); // discard body
-      resolve(Date.now() - start);
+    const socket = net.connect({ host, port });
+
+    socket.setTimeout(timeout);
+
+    socket.on("connect", () => {
+      const latency = Date.now() - start;
+      socket.destroy();
+      resolve(latency);  // ms
     });
 
-    req.on("error", () => resolve(null)); // server offline
-    req.on("timeout", () => {
-      req.destroy();
-      resolve(null);
+    socket.on("timeout", () => {
+      socket.destroy();
+      resolve(null);     // timed out
+    });
+
+    socket.on("error", () => {
+      resolve(null);     // offline
     });
   });
 }