Initial commit

index.js

@@ -0,0 +1,99 @@
+const Express = require('express');
+const pug = require('pug');
+const fs = require("fs");
+const readline = require("readline");
+const ping = require('ping');
+
+const app = Express();
+const port = 3333;
+const version = 1.1;
+
+app.use( Express.json() );
+app.use( Express.urlencoded( {extended: true } ) );
+app.disable( 'x-powered-by' );
+
+app.set( 'views', __dirname + '/views' );
+app.set( 'view engine', 'pug' );
+
+app.get( '/', async ( req, res ) => {
+    res.send( pug.renderFile( 'views/index.pug', { } ) );
+    res.end();
+} );
+
+
+/** API **/
+const apiResponse = {
+    "api-name": "network-devices",
+    "api-version": version,
+    "api-author": "Tobias Hopp",
+    "status": 200,
+    data: null
+};
+
+app.get( '/api/getDeviceStatus/:ipAddress', async ( req, res ) => {
+    console.log( 'Loading device status for ' + req.params.ipAddress + '...' );
+    let ping_response = await ping.promise.probe(req.params.ipAddress, {
+        timeout: 5,
+        extra: ['-i', '1'],
+    });
+    console.log(ping_response);
+    let response = apiResponse;
+    response.status = 200;
+    res.status(200);
+    let data;
+
+    if( ping_response.alive )
+    {
+        data = { online: true, host: ping_response.host, time: ping_response.time, avg: ping_response.avg }
+    }
+    else
+    {
+        data = { online: false, host: ping_response.host, time: ping_response.time, avg: ping_response.avg }
+    }
+
+    response.data = data;
+
+    res.json( response );
+
+    res.end();
+} );
+
+
+app.get( '/api/getDevices', async ( req, res ) => {
+    // Read the dnsmasq file
+    console.log( 'Loading all devices...' );
+
+    const fileStream = fs.createReadStream('/home/tobias/IdeaProjects/network-devices/dnsmasq.leases' );
+    const rl = readline.createInterface( { input: fileStream, crlfDelay: Infinity } );
+
+    let data = [];
+    for await ( const nline of rl )
+    {
+        let thisData = {};
+        let line = nline.substr( nline.indexOf( ' ' ) +1 )
+        thisData.macAddress = line.substr( 0, line.indexOf( ' ' ) );
+        thisData.ipAddress = line.substr( thisData.macAddress.length +1, line.substr( thisData.macAddress.length+1 ).indexOf( ' ') );
+        thisData.hostname = line.substr( thisData.macAddress.length + thisData.ipAddress.length +2, line.length-1 );
+        //console.log( nline );
+        data.push( thisData );
+    }
+
+
+
+    let response = apiResponse;
+    response.status = 200;
+    res.status(200);
+
+    response.data = data;
+    res.json( response );
+
+    res.end();
+} );
+
+
+app.get( '*', ( req, res ) => {
+    res.status( 404 ).send( "not found" );
+    res.end();
+} );
+
+app.listen( port, () => { console.log( "Server started!" )} );