Refactored server.js to serve the app files over Express

service/package-lock.json

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+        "debug": "2.6.9",
+        "depd": "~1.1.2",
+        "destroy": "~1.0.4",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
+        "fresh": "0.5.2",
+        "http-errors": "~1.7.2",
+        "mime": "1.6.0",
+        "ms": "2.1.1",
+        "on-finished": "~2.3.0",
+        "range-parser": "~1.2.1",
+        "statuses": "~1.5.0"
+      },
+      "dependencies": {
+        "ms": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
+          "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg=="
+        }
+      }
+    },
+    "serve-static": {
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.1.tgz",
+      "integrity": "sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==",
+      "requires": {
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "parseurl": "~1.3.3",
+        "send": "0.17.1"
+      }
+    },
+    "setprototypeof": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
+      "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw=="
+    },
     "signal-exit": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.3.tgz",
       "integrity": "sha512-VUJ49FC8U1OxwZLxIbTTrDvLnf/6TDgxZcK8wxR8zs13xpx7xbG60ndBlhNrFi2EMuFRoeDoJO7wthSLq42EjA==",
       "dev": true
     },
+    "statuses": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
+      "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
+    },
     "string-width": {
       "version": "4.2.0",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.0.tgz",
@@ -1134,6 +1453,11 @@
         "is-number": "^7.0.0"
       }
     },
+    "toidentifier": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
+      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw=="
+    },
     "touch": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/touch/-/touch-3.1.0.tgz",
@@ -1154,6 +1478,15 @@
       "integrity": "sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==",
       "dev": true
     },
+    "type-is": {
+      "version": "1.6.18",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+      "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
+      "requires": {
+        "media-typer": "0.3.0",
+        "mime-types": "~2.1.24"
+      }
+    },
     "typedarray-to-buffer": {
       "version": "3.1.5",
       "resolved": "https://registry.npmjs.org/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz",
@@ -1180,6 +1513,11 @@
         "crypto-random-string": "^2.0.0"
       }
     },
+    "unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
+    },
     "update-notifier": {
       "version": "4.1.3",
       "resolved": "https://registry.npmjs.org/update-notifier/-/update-notifier-4.1.3.tgz",
@@ -1218,6 +1556,16 @@
         "node-gyp-build": "^4.2.0"
       }
     },
+    "utils-merge": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+    },
+    "vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+    },
     "websocket": {
       "version": "1.0.33",
       "resolved": "https://registry.npmjs.org/websocket/-/websocket-1.0.33.tgz",

service/package.json

@@ -20,6 +20,7 @@
   "homepage": "https://git.platypush.tech/platypush/platypush-app",
   "dependencies": {
     "bonjour": "^3.5.0",
+    "express": "^4.17.1",
     "websocket": "^1.0.33"
   },
   "devDependencies": {

service/server.js

@@ -1,62 +1,86 @@
-const WebSocketServer = require('websocket').server
+const websocket = require('websocket').server
 const http = require('http')
+const express = require('express')
+const path = require('path')
 const bonjour = require('bonjour')()
 
-const sockets = new Set()
+const app = express(),
-const services = {}
+      bodyParser = require('body-parser'),
+      wsPort = 3080,
+      httpPort = 18080,
+      sockets = new Set(),
+      services = {}
 
+// Initialize HTTP websocket transport
 const server = http.createServer(function(request, response) {
-    console.log((new Date()) + ' Received request for ' + request.url)
+    console.log(`[${(new Date())}] Received request for ${request.url}`)
     response.writeHead(404)
     response.end()
 })
 
-server.listen(3080, '127.0.0.1', () => {
+server.listen(wsPort, '127.0.0.1', () => {
-    console.log((new Date()) + ' Server is listening on port 3080')
+    console.log(`[${(new Date())}] Websocket transport listening on port ${wsPort}`)
 })
 
-wsServer = new WebSocketServer({
+// Initialize Express web service
+app.use(bodyParser.json())
+app.use(express.static(path.join(__dirname, '../webapp/dist')))
+
+app.get('/', (req,res) => {
+  res.sendFile(path.join(__dirname, '../webapp/dist/index.html'))
+})
+
+app.listen(httpPort, () => {
+    console.log(`Web server listening on port ${httpPort}`)
+})
+
+// Initialize websocket service
+wsServer = new websocket({
     httpServer: server,
     autoAcceptConnections: false,
 })
 
-function originIsAllowed() {
+function requestAllowed(request) {
+    if (request.resource !== '/services') {
+        console.log(`Unknown web socket resource: ${request.resource}`)
+        return false
+    }
+
+    if (request.remoteAddress !== '127.0.0.1' && request.remoteAddress !== '::1') {
+        console.log('Websocket requests are only allowed from localhost')
+        return false
+    }
+
     return true
 }
 
 wsServer.on('request', (request) => {
-    if (!originIsAllowed(request.origin)) {
+    if (!requestAllowed(request))
-        request.reject()
-        console.log((new Date()) + ' Connection from origin ' + request.origin + ' rejected.')
         return
-    }
 
     const connection = request.accept('', request.origin)
-    sockets.add(connection)
+    console.log(`[${(new Date())}] Connection accepted.`)
 
+    sockets.add(connection)
     sendServiceInfo(connection)
-    console.log((new Date()) + ' Connection accepted.')
 
     connection.on('message', function(message) {
         if (message.type === 'utf8') {
-            console.log('Received Message: ' + message.utf8Data)
+            if (message.utf8Data === 'sync') {
-
+                console.log('Received sync request')
-            if (message.utf8Data === 'sync')
                 sendServiceInfo(connection)
+            } else {
+                console.log(`Unsupported command: ${message.utf8Data}`)
+            }
         }
     })
 
     connection.on('close', function() {
-        console.log((new Date()) + ' Peer ' + connection.remoteAddress + ' disconnected.')
+        console.log(`[${(new Date())}] Peer ${connection.remoteAddress} disconnected.`)
     })
 })
 
-function sendServiceInfo(sock, service) {
+// Initialize the Zeroconf/Bonjour service
-    const srvs = service ? [service] : Object.values(services)
-    for (const srv of srvs)
-        sock.sendUTF(JSON.stringify(srv))
-}
-
 function discoverServices() {
     bonjour.find({type: 'platypush-http'}, (service) => {
         services[service.name] = service
@@ -66,4 +90,12 @@ function discoverServices() {
     })
 }
 
+function sendServiceInfo(sock, service) {
+    const srvs = service ? [service] : Object.values(services)
+    for (const srv of srvs)
+        sock.sendUTF(JSON.stringify(srv))
+}
+
 discoverServices()
+setInterval(discoverServices, 10000)
+

webapp/src/components/Hosts.vue

@@ -16,7 +16,7 @@ export default {
   data() {
     return {
       ws: null,
-      wsUrl: 'ws://localhost:3080/',
+      wsUrl: 'ws://localhost:3080/services',
       services: {},
       connRetrySeconds: 10,
       connRetryInterval: null,