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SmartHome/index.js
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#!/usr/bin/env node | |
const Koa = require('koa'); | |
const app = new Koa() | |
const Router = require('koa-router') | |
const WebSocket = require('ws'); | |
const mqtt = require('mqtt'); | |
const json = require('koa-json'); | |
const path = require('path'); | |
const render = require('koa-ejs') | |
const router = Router(); | |
const port = 9001 | |
var LightOnOff = false; | |
var LightConnected = false; | |
render(app, { | |
root: path.join(__dirname, 'views'), | |
layout: 'layout', | |
viewExt: 'html', | |
cashe: false, | |
debug: false, | |
}) | |
const wss = new WebSocket.Server({ | |
port: 3000, | |
perMessageDeflate: { | |
zlibDeflateOptions: { | |
// See zlib defaults. | |
chunkSize: 1024, | |
memLevel: 7, | |
level: 3 | |
}, | |
zlibInflateOptions: { | |
chunkSize: 10 * 1024 | |
}, | |
// Other options settable: | |
clientNoContextTakeover: true, // Defaults to negotiated value. | |
serverNoContextTakeover: true, // Defaults to negotiated value. | |
serverMaxWindowBits: 10, // Defaults to negotiated value. | |
// Below options specified as default values. | |
concurrencyLimit: 10, // Limits zlib concurrency for perf. | |
threshold: 1024 // Size (in bytes) below which messages | |
// should not be compressed. | |
} | |
}); | |
router.post('/ExteriorLightOnOff', onoff); | |
router.get('/Lights', async ctx =>{ | |
await ctx.render('lights'); | |
if (LightConnected == false){ | |
LightConnected = true; | |
const connection = new WebSocket('ws://localhost:3000') | |
wss.on('connection', function connection(ws) { | |
const client = mqtt.connect('mqtt.coventry.ac.uk', { | |
host: 'mqtt.coventry.ac.uk', | |
protocol: 'mqtts', | |
username: '302CEM', | |
password: 'n3fXXFZrjw', | |
port: 8883, | |
}) | |
client.on('connect', function () { | |
client.subscribe('302CEM/Team2/kailad', function (err) { | |
if (!err){ | |
client.publish('302CEM/Team2/kailad', 'Subbed') | |
} | |
}) | |
}) | |
}); | |
} | |
else { | |
} | |
}) | |
async function onoff(ctx) { | |
const connection = new WebSocket('ws://localhost:3000') | |
wss.on('connection', function connection(ws) { | |
const client = mqtt.connect('mqtt.coventry.ac.uk', { | |
host: 'mqtt.coventry.ac.uk', | |
protocol: 'mqtts', | |
username: '302CEM', | |
password: 'n3fXXFZrjw', | |
port: 8883, | |
}) | |
if (LightOnOff == false){ | |
client.on('connect', function () { | |
client.subscribe('302CEM/Team2/kailad', function (err) { | |
if (!err){ | |
LightOnOff = true; | |
client.publish('302CEM/Team2/kailad', 'Turn on the Exterior Light') | |
} | |
}) | |
}) | |
} | |
else if (LightOnOff == true){ | |
client.on('connect', function () { | |
client.subscribe('302CEM/Team2/kailad', function (err) { | |
if (!err){ | |
LightOnOff = false; | |
client.publish('302CEM/Team2/kailad', 'Turn off the Exterior Light') | |
} | |
}) | |
}) | |
} | |
}); | |
ctx.redirect('/lights') | |
} | |
router.get ('/temperature', async ctx =>{ | |
await ctx.render('temperature'); | |
const connection = new WebSocket('ws://localhost:3000') | |
wss.on('connection', function connection(ws) { | |
const client = mqtt.connect('mqtt.coventry.ac.uk', { | |
host: 'mqtt.coventry.ac.uk', | |
protocol: 'mqtts', | |
username: '302CEM', | |
password: 'n3fXXFZrjw', | |
port: 8883, | |
}) | |
client.on('connect', function () { | |
client.subscribe('302CEM/Team2/temp01', function (err) { | |
if (!err){ | |
client.publish('302CEM/Team2/temp01', 'subbed') | |
} | |
}) | |
}) | |
client.on('message', function(topic, message, packet){ | |
ws.send(`${message}`) | |
}) | |
}); | |
}) | |
app.use(json()); | |
app.use(router.routes()); | |
module.exports = app.listen(port, () => console.log(`listening on port ${port}`)) | |
//mosquitto_sub -v -h mqtt.coventry.ac.uk --cafile mqtt.crt -p 8883 -u 302CEM -P n3fXXFZrjw -t 302CEM/Team2/kailad | |
//mosquitto_pub -h mqtt.coventry.ac.uk -p 8883 --cafile mqtt.crt -u 302CEM -P n3fXXFZrjw -t 302CEM/Team2/kailad -m "why doesnt mqtt work?" | |