Notif system

server/WebSocket/controllers/GPS_EventsController.js

@@ -0,0 +1,19 @@
+const Notification = require('../../models/GPS.Notif')
+
+
+module.exports.notifyGPS = async (type, gps_id) => {
+  try {
+    const io = global._io
+    const gps = io.of('/gps')
+    const data = { type }
+
+    if (type === 'updateGPSInbox') {
+      const gpsInbox = await Notification.find({ userID:gps_id, seen: false }).sort({updated_at: -1})
+      data.gpsInbox = gpsInbox
+    }
+
+    gps.to(gps_id.toString()).emit(`GPS:notify`, data)
+  } catch (e) {
+    console.log(e)
+  }
+}

server/WebSocket/middlewares/ws_authentication.js

@@ -1,5 +1,6 @@
 const jwt = require('jsonwebtoken')
 const User = require('../../models/User')
+const UserGPS = require('../../models/GPS.User')
 const authentication = require('../../authentication')
 
 module.exports.isAdmin = async (socket, next) => {
@@ -65,3 +66,23 @@ module.exports.isAgent = async (socket, next) => {
     next(new Error(e))
   }
 }
+
+module.exports.isGPS = async (socket, next) => {
+  try {
+    const token = socket.handshake?.auth?.token
+    if (!token) throw new Error('unauthenticated')
+
+    // verifies secret and checks if the token is expired
+    const decodedToken = await jwt.verify(token.replace(/^Bearer\s/, ''), authentication.secretKey)
+    if (!decodedToken) throw new Error('unauthorized')
+
+    // find user
+    const user = await UserGPS.findById(decodedToken._id)
+    if (!user || !user.active) throw new Error('unauthorized')
+
+    socket.userId = decodedToken._id.toString()
+    return next()
+  } catch (e) {
+    next(new Error(e))
+  }
+}

server/WebSocket/namespaces/GPS_NameSpace.js

@@ -0,0 +1,25 @@
+const { isGPS } = require('../middlewares/ws_authentication')
+const gpsEventsController = require('../controllers/GPS_EventsController')
+
+module.exports.gpsNamespace = () => {
+  const io = global._io
+  const gps = io.of('/gps')
+
+  // gpss middlewares
+  gps.use(isGPS)
+
+  // attach events
+  gps.on('connection', socket => {
+    socket.join(socket.gpsId)
+    gpsEventsController.getAllNotifs(socket)
+
+    /// /////////////////////////////////////////////////////// handle connection error
+    socket.on('connect_error', err => {
+      console.log(err.message)
+    })
+
+    /// ////////////////////////////////////////////////////// events
+    socket.on('gps:fetchAnnouncements', data => gpsEventsController.fetchAnnouncements(socket))
+    socket.on('gps:updateAnnouncement', data => gpsEventsController.updateAnnouncement(socket, data))
+  })
+}

server/WebSocket/wss.js

@@ -4,6 +4,7 @@ function init(server) {
   const { userNamespace } = require('./namespaces/user_NameSpace')
   const { agentNamespace } = require('./namespaces/agent_NameSpace')
   const { adminNamespace } = require('./namespaces/admin_NameSpace')
+  const { gpsNamespace } = require('./namespaces/GPS_NameSpace')
   const { Server } = require('socket.io')
   const socketIO = require('socket.io')
 
@@ -18,6 +19,7 @@ function init(server) {
   userNamespace()
   agentNamespace()
   adminNamespace()
+  gpsNamespace()
 }
 
 module.exports = init