✨ Creates an endpoint to run ping-only status check

server.js

@@ -18,7 +18,8 @@ require('./services/update-checker'); // Checks if there are any updates availab
 require('./services/config-validator'); // Include and kicks off the config file validation script
 
 /* Include route handlers for API endpoints */
-const statusCheck = require('./services/status-check'); // Used by the status check feature, to ping services
+const statusCheck = require('./services/status-check'); // Used by the status check feature, uses GET
+const statusPing = require('./services/status-ping'); // Used for ping-only status checks
 const saveConfig = require('./services/save-config'); // Saves users new conf.yml to file-system
 const rebuild = require('./services/rebuild-app'); // A script to programmatically trigger a build
 
@@ -61,12 +62,22 @@ try {
     .use(serveStatic(`${__dirname}/dist`))
     // During build, a custom page will be served before the app is available
     .use(serveStatic(`${__dirname}/public`, { index: 'default.html' }))
-    // This root returns the status of a given service - used for uptime monitoring
+    // GET endpoint to run status of a given URL with GET request
     .use(ENDPOINTS.statusCheck, (req, res) => {
       try {
         statusCheck(req.url, async (results) => {
           await res.end(results);
         });
+      } catch (e) {
+        printWarning(`Error running status check for ${req.url}\n`, e);
+      }
+    })
+    // GET endpoint to ping a given IP address, also used for status checking
+    .use(ENDPOINTS.statusPing, (req, res) => {
+      try {
+        statusPing(req.url, async (results) => {
+          await res.end(results);
+        });
       } catch (e) {
         printWarning(`Error running ping check for ${req.url}\n`, e);
       }
@@ -74,9 +85,7 @@ try {
     // POST Endpoint used to save config, by writing conf.yml to disk
     .use(ENDPOINTS.save, method('POST', (req, res) => {
       try {
-        saveConfig(req.body, (results) => {
+        saveConfig(req.body, (results) => { res.end(results); });
-          res.end(results);
-        });
       } catch (e) {
         res.end(JSON.stringify({ success: false, message: e }));
       }

services/status-ping.js

@@ -0,0 +1,42 @@
+/**
+ * Short Node script for pinging an IP address to check if it's online
+ * Used for the optional status check feature, as an alternative to the GET request
+ * Accepts a single ip param, will ping that server, then respond with the status
+ * Credit to @nospaceships for the node-net-ping package, MIT
+ */
+const ping = require('net-ping');
+
+/* Options used for ping */
+const pingOptions = {
+  networkProtocol: ping.NetworkProtocol.IPv4,
+  packetSize: 16,
+  retries: 1,
+  timeout: 1000,
+  ttl: 128,
+};
+
+/* Kicks of an IP ping, and returns callback with the status */
+const makePing = (ip, render) => {
+  const startTime = new Date();
+  const session = ping.createSession(pingOptions);
+  session.pingHost(ip, (error, target) => {
+    const timeTaken = (new Date() - startTime);
+    if (error) {
+      render(JSON.stringify({ success: false, message: `❌ ${error}` }));
+    } else {
+      render(JSON.stringify({ success: true, message: `✅ ${target} is Alive\n⏱️ Took ${timeTaken} ms` }));
+    }
+    session.close();
+  });
+};
+
+/* Checks if a given IP address is online, and accessible */
+module.exports = (paramStr, render) => {
+  if (!paramStr || !paramStr.includes('ip=')) {
+    render(JSON.stringify({ success: false, message: '❌ Malformed or Missing IP' }));
+  } else {
+    // Prepare the parameters, which are got from the URL
+    const ip = decodeURIComponent((new URLSearchParams(paramStr)).get('ip'));
+    makePing(ip, render);
+  }
+};