check sleep request

app/app.js

@@ -6,6 +6,20 @@ const axios = require("axios");
 let url = require('url');
 let http = require('http');
 let fs = require('fs');
+const dns = require('node:dns');
+const os = require('node:os');
+
+const options = { family: 4 };
+
+let myself= "";
+
+dns.lookup(os.hostname(), options, (err, addr) => {
+  if (err) {
+    console.error(err);
+  } else {
+    myself= addr;
+  }
+});
 
 let bodyParser = require('body-parser');
 app = global.app = express();
@@ -59,6 +73,14 @@ async function sleep(ms) {
 let index = require('./routes/index.js');
 
 index.get('/sleep', async (req, res, next) => {
+  let client= req.headers['x-forwarded-for'];
+  global.logger.log("info", "Sleep request from: "+client+" I am: "+myself);
+  if(client!= myself && globalThis.process.env.ENV=== "PROD") {
+    global.logger.log("info", "Sleep request denied.");
+    res.status= 403;
+    res.send("");
+    return;
+  }
   await sleep(globalThis.process.env.SLEEP);
   sleepinprogress = false;
   global.logger.log("info", "Woke up.");