feat: Implement mqtt-gateway

.prettierrc

@@ -1,4 +1,5 @@
 {
+  "printWidth": 100,
   "semi": false,
   "singleQuote": true,
   "tabWidth": 4,

apps/mqtt-gateway/.env.example

@@ -0,0 +1,6 @@
+AWEKAS_ID=your-awkas-id
+AWEKAS_PASSWORD=your-awekas-password
+MPLABS_ID=your-local-id
+MPLABS_PASSWORD=your-local-password
+MQTT_BROKER_URL=mqtt://127.0.0.1:1883
+MQTT_TOPIC=weather

apps/mqtt-gateway/compose.yml

@@ -0,0 +1,30 @@
+services:
+  watchtower:
+    image: containrrr/watchtower
+    command:
+      - "--label-enable"
+      - "--interval"
+      - "30"
+      - "--rolling-restart"
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+      - /etc/localtime:/etc/localtime:ro
+  
+  mqtt-gateway:
+    image: fduerrwald/awekas:latest
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.mqtt-gateway.rule=Host(`ws.mplabshome.net`)"
+      - "traefik.http.routers.mqtt-gateway.entrypoints=web"
+      - "com.centurylinklabs.watchtower.enable=true"
+    environment:
+      - AWEKAS_ID=${AWEKAS_ID}
+      - AWEKAS_PASSWORD=${AWEKAS_PASSWORD}
+      - MPLABS_ID=${MPLABS_ID}
+      - MPLABS_PASSWORD=${MPLABS_PASSWORD}
+      - MQTT_BROKER_URL=${MQTT_BROKER_URL:-mqtt://127.0.0.1:1883}
+      - MQTT_TOPIC=${MQTT_TOPIC:-weather}
+    deploy:
+      mode: replicated
+      replicas: 3
+    restart: always

apps/mqtt-gateway/src/chatgpt.ts

@@ -1,66 +0,0 @@
-import type { ParsedQs } from 'qs'
-import express, { Request, Response } from 'express'
-import morgan from 'morgan'
-
-const app = express()
-const port = 3000
-
-// Utility function to check required fields
-const checkRequiredFields = (params: ParsedQs): boolean => {
-    const requiredFields = ['ID', 'PASSWORD', 'dateutc', 'action']
-    for (const field of requiredFields) {
-        if (!params[field]) {
-            return false
-        }
-    }
-    return true
-}
-
-app.use(morgan(':method :url :status :res[content-length] - :response-time ms'))
-
-// Route to handle weather station updates
-app.get(
-    '/weatherstation/updateweatherstation.php',
-    (req: Request, res: Response) => {
-        const params = req.query
-
-        // Check if required fields are present
-        if (!checkRequiredFields(params)) {
-            return res
-                .status(400)
-                .send(
-                    'RapidFire Server<br><br><b>usage</b><br>Required fields missing: ID, PASSWORD, action, and dateutc'
-                )
-        }
-
-        const { ID, PASSWORD, action, dateutc } = params as Record<string, string>
-
-        // Validate action and dateutc
-        if (action !== 'updateraw') {
-            return res.status(400).send('Invalid action')
-        }
-
-        if (dateutc !== 'now' && isNaN(Date.parse(dateutc))) {
-            return res.status(400).send('Invalid dateutc format')
-        }
-
-        // Validate ID and PASSWORD (this is where you would verify against your database)
-        // For now, we'll mock this validation
-        if (ID !== 'KCASANFR5' || PASSWORD !== 'XXXXXX') {
-            return res
-                .status(401)
-                .send('INVALIDPASSWORDID|Password and/or id are incorrect')
-        }
-
-        // Success response
-        res.status(200).send('success')
-
-        // Log the incoming data
-        console.log('Received weather data:', params)
-    }
-)
-
-// Start the server
-app.listen(port, () => {
-    console.log(`Server is running at http://localhost:${port}`)
-})

apps/mqtt-gateway/src/main.ts

@@ -1,43 +1,57 @@
-import express from 'express';
+import dotenv from 'dotenv'
-import { checkSchema, Schema } from 'express-validator'
+import express, { NextFunction, Request, Response } from 'express'
+import morgan from 'morgan'
+import mqtt from 'mqtt'
+import checkRequiredFieldsMiddleware from './middleware/checkRequiredFields'
+import validateParamsMiddleware from './middleware/validateParams'
+import forwardDataMiddleware from './middleware/forwardData'
+import { WSQuery } from './types'
+import sendToMqtt from './middleware/sentToMqtt'
 
-const host = process.env.HOST ?? 'localhost';
+dotenv.config()
-const port = process.env.PORT ? Number(process.env.PORT) : 3000;
 
-const app = express();
+const { AWEKAS_ID, AWEKAS_PASSWORD, MPLABS_ID, MPLABS_PASSWORD, MQTT_BROKER_URL, MQTT_TOPIC } = process.env
 
-const FtoC: (f: number) => number = (f) => (f - 32) * 5 / 9
+const app = express()
-const inHgTohpa: (inHg: number) => number = (inHg) => inHg * 33.86389
+const port = 3000
-const mphToKmh: (mph: number) => number = (mph) => mph * 1.609344
-const mphToMs: (mph: number) => number = (mph) => mph * 0.44704
 
-type UpdateweatherstationQuery = Record<string, unknown> & {
+// MQTT Client setup
-  action: 'updateraw'
+const mqttClient = mqtt.connect(MQTT_BROKER_URL) // Replace with your MQTT server URL and port
-  ID: string
+
-  KEY: string
+mqttClient.on('connect', () => {
+    console.log('Connected to MQTT broker')
+})
+
+mqttClient.on('error', (err) => {
+    console.error('MQTT connection error:', err)
+})
+
+app.use(morgan(':method :url :status :res[content-length] - :response-time ms'))
+
+// Routes
+app.get('/', (req: Request, res: Response) => {
+    res.send('AWEKAS Data  Server URL')
+})
+
+// Route to handle weather station updates
+app.get(
+    '/weatherstation/updateweatherstation.php',
+    checkRequiredFieldsMiddleware,
+    validateParamsMiddleware(MPLABS_ID, MPLABS_PASSWORD),
+    forwardDataMiddleware(AWEKAS_ID, AWEKAS_PASSWORD),
+    sendToMqtt(mqttClient, MQTT_TOPIC),
+    (req: Request, res: Response) => {
+        const params = req.query as WSQuery
+
+        // Success response
+        res.status(200).send('  - airp locked  - Transfer OK')
+
+        // Log the incoming data
+        console.log('Received weather data:', params)
     }
+)
 
-app.get('/weatherstation/updateweatherstation.php', (req, res) => {
+// Start the server
-  const query = req.query as Record<string, string>
+app.listen(port, () => {
-
+    console.log(`Server is running at http://localhost:${port}`)
-  // Validate only the required fields for now
+})
-  const { action, ID, KEY } = query
-
-  const timestamp = new Date().getTime()
-  const pressure_inhg = parseFloat(query.baromin)
-  const pressure_hpa = inHgTohpa(parseFloat(query.baromin))
-  const temperature_f = parseFloat(query.tempf)
-  const temperature_c = FtoC(parseFloat(query.tempf))
-  const dew_point_f = parseFloat(query.dewptf)
-  const dew_point_c = FtoC(parseFloat(query.dewptf))
-  const humidity = parseFloat(query.humidity)
-  const wind_speed_mph = parseFloat(query.windspeedmph)
-  const wind_speed_mph = mphToKmh(parseFloat(query.windspeedmph))
-  const wind_speed_ms = mphToMs(parseFloat(query.windspeedmph))
-
-  res.send('OK')
-});
-
-app.listen(port, host, () => {
-  console.log(`[ ready ] http://${host}:${port}`);
-});

apps/mqtt-gateway/src/middleware/checkRequiredFields.ts

@@ -0,0 +1,17 @@
+import { NextFunction, Request, Response } from "express"
+import { WSQuery } from "../types"
+
+// Utility middleware to check required fields
+const checkRequiredFieldsMiddleware = (req: Request, res: Response, next: NextFunction) => {
+    const params = req.query as WSQuery
+    const requiredFields = ['ID', 'PASSWORD', 'dateutc', 'action']
+    if (!requiredFields.every((field) => Boolean(params[field]))) {
+        res.status(400).send(
+            `AWEKAS Data Server URL<br><strong>Required fields missing:</strong> ID, PASSWORD, action, and dateutc`
+        )
+    } else {
+        next()
+    }
+}
+
+export default checkRequiredFieldsMiddleware

apps/mqtt-gateway/src/middleware/forwardData.ts

@@ -0,0 +1,35 @@
+import { NextFunction, Request, Response } from "express"
+import { WSQuery } from "../types"
+
+// Forward received data to AWEKAS
+const forwardDataMiddleware = (AWEKAS_ID: string, AWEKAS_PASSWORD: string) => async (req: Request, res: Response, next: NextFunction) => {
+    const awekasServerUrl = 'http://ws.awekas.at/weatherstation/updateweatherstation.php'
+    const queryParams = new URLSearchParams(req.query as WSQuery)
+    queryParams.set('ID', AWEKAS_ID)
+    queryParams.set('PASSWORD', AWEKAS_PASSWORD)
+    const awekasUrlWithParams = `${awekasServerUrl}?${queryParams.toString()}`
+
+    try {
+        // Forward the request using the native fetch API
+        const awekasResponse = await fetch(awekasUrlWithParams, {
+            method: 'GET',
+            headers: {
+                Host: 'ws.awekas.at', // Override the host header to match the expected hostname
+            },
+        })
+
+        // If the forward request is successful, log and continue to the next handler
+        const awekasData = await awekasResponse.text()
+        console.log('Response from Awekas:', awekasData)
+
+        // Move to the next middleware or route handler
+        next()
+    } catch (error) {
+        console.error('Error forwarding request to Awekas:', error)
+
+        // If there's an error, respond with a 502 Bad Gateway
+        res.status(502).send('Error forwarding request to Awekas server')
+    }
+}
+
+export default forwardDataMiddleware

apps/mqtt-gateway/src/middleware/sentToMqtt.ts

@@ -0,0 +1,36 @@
+import { NextFunction, Request, Response } from 'express'
+import { WSQuery } from '../types'
+import { MqttClient } from 'mqtt/*'
+import transformData from '../utils/transformData'
+import { omit } from '../utils/object'
+
+// Middleware to send data to MQTT server
+const sendToMqtt =
+    (mqttClient: MqttClient, MQTT_TOPIC: string) =>
+    (req: Request, res: Response, next: NextFunction) => {
+        const { ID, ...params } = omit(
+            req.query as WSQuery,
+            'PASSWORD',
+            'action',
+            'realtime',
+            'rtfreq'
+        )
+
+        // Format the data to be sent to MQTT
+        const data = transformData(params)
+
+        // Send the data to the MQTT server
+        for (const [key, value] of Object.entries(data)) {
+            const topic = `${MQTT_TOPIC}/${ID}/${key}`
+            mqttClient.publish(topic, value.toString(), (err) => {
+                if (err) {
+                    console.error('Failed to publish to MQTT:', err)
+                }
+            })
+        }
+
+        // Proceed to the next middleware
+        next()
+    }
+
+export default sendToMqtt

apps/mqtt-gateway/src/middleware/validateParams.ts

@@ -0,0 +1,24 @@
+import { NextFunction, Request, Response } from "express"
+import { WSQuery } from "../types"
+
+// Validate input parameters
+const validateParamsMiddleware = (MPLABS_ID: string, MPLABS_PASSWORD: string) => (req: Request, res: Response, next: NextFunction) => {
+    const { ID, PASSWORD, action, dateutc } = req.query as WSQuery
+
+    // Validate action and dateutc
+    if (action !== 'updateraww') {
+        res.status(400).send('Invalid action')
+    } else if (dateutc !== 'now' && isNaN(Date.parse(dateutc))) {
+        res.status(400).send('Invalid dateutc format')
+    }
+
+    // Validate ID and PASSWORD (this is where you would verify against your database)
+    // For now, we'll mock this validation
+    else if (ID !== MPLABS_ID || PASSWORD !== MPLABS_PASSWORD) {
+        return res.status(401).send('INVALIDPASSWORDID|Password and/or id are incorrect')
+    } else {
+        next()
+    }
+}
+
+export default validateParamsMiddleware

apps/mqtt-gateway/src/types.ts

@@ -0,0 +1,21 @@
+export type WSKeys =
+    | 'ID'
+    | 'PASSWORD'
+    | 'action'
+    | 'realtime'
+    | 'rtfreq'
+    | 'dateutc'
+    | 'baromin'
+    | 'tempf'
+    | 'dewptf'
+    | 'humidity'
+    | 'windspeedmph'
+    | 'windgustmph'
+    | 'winddir'
+    | 'rainin'
+    | 'dailyrainin'
+    | 'solarradiation'
+    | 'UV'
+    | 'indoortempf'
+    | 'indoorhumidity'
+export type WSQuery = Record<WSKeys, string>

apps/mqtt-gateway/src/utils/object.ts

@@ -0,0 +1,11 @@
+// This function, omit, takes an object and an array of property keys, returning a new object
+// that excludes the specified properties. It ensures type safety by allowing only valid keys
+// from the original object to be omitted, without mutating the original data.
+export function omit<T extends object, K extends keyof T>(obj: T, ...props: K[]): Omit<T, K> {
+    return (Object.keys(obj) as K[]).reduce((acc, key) => {
+        if (!props.includes(key)) {
+            acc[key] = obj[key]
+        }
+        return acc
+    }, {} as T)
+}

apps/mqtt-gateway/src/utils/transformData.ts

@@ -0,0 +1,62 @@
+import { WSQuery } from '../types'
+
+// Returns the current UTC time in the format
+// YYYY-MM-DD HH:MM:SS
+const getCurrentTimeString = () => {
+    const now = new Date()
+    const formatter = new Intl.DateTimeFormat('en-US', {
+        year: 'numeric',
+        month: '2-digit',
+        day: '2-digit',
+        hour: '2-digit',
+        minute: '2-digit',
+        second: '2-digit',
+        hour12: false,
+        timeZone: 'UTC',
+    })
+    return formatter.format(now).replace(',', '')
+}
+
+// Convert miles per hour to kilometers per hour
+const mphToKph = (mph: string) => (parseFloat(mph) * 1.60934).toFixed(1)
+
+// Convert Fahreneheit to Celsius
+const fToC = (f: string) => (((parseFloat(f) - 32) * 5) / 9).toFixed(1)
+
+// Convert inches Hg to hectopascal
+const inHgTohPa = (inHg: string) => (parseFloat(inHg) * 33.8639).toFixed(1)
+
+// Convert inches to mm
+const inchToCm = (inch: string) => (parseFloat(inch) * 25.4).toFixed(1)
+
+// Calculate the wet bulb temperature
+//
+const wetbulbtemperature = (tempf: string, humidity: string) => {
+    const T = ((parseFloat(tempf) - 32) * 5) / 9
+    const RH = parseFloat(humidity)
+    return (
+        T * Math.atan(0.151977 * Math.sqrt(RH + 8.313659)) +
+        Math.atan(T + RH) -
+        Math.atan(RH - 1.676331) +
+        0.00391838 * Math.pow(RH, 1.5) * Math.atan(0.023101 * RH) -
+        4.686035
+    ).toFixed(2)
+}
+
+const transformData = (
+    params: Omit<WSQuery, 'action' | 'ID' | 'PASSWORD' | 'realtime' | 'rtfreq'>
+) => ({
+    ...params,
+    dateutc: params.dateutc === 'now' ? getCurrentTimeString() : params.dateutc,
+    windspeedkph: mphToKph(params.windspeedmph),
+    windgustkph: mphToKph(params.windgustmph),
+    tempc: fToC(params.tempf),
+    dewptc: fToC(params.dewptf),
+    baromhpa: inHgTohPa(params.baromin),
+    rainmm: inchToCm(params.rainin),
+    dailyrainmm: inchToCm(params.dailyrainin),
+    indoortempc: fToC(params.indoortempf),
+    wetbulbtemperature: wetbulbtemperature(params.tempf, params.humidity),
+})
+
+export default transformData

package-lock.json

@@ -11,9 +11,11 @@
       "dependencies": {
         "@types/morgan": "^1.9.9",
         "axios": "^1.6.0",
+        "dotenv": "^16.4.5",
         "express": "~4.18.1",
         "express-validator": "^7.2.0",
         "morgan": "^1.10.0",
+        "mqtt": "^5.10.1",
         "tslib": "^2.3.0"
       },
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       "dev": true
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+    "node_modules/@types/ws": {
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+      }
+    },
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+      "dependencies": {
+        "event-target-shim": "^5.0.0"
+      },
+      "engines": {
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+      }
+    },
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@@ -5024,12 +5056,31 @@
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+        "typedarray": "^0.0.6"
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@@ -8607,6 +8849,11 @@
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@@ -8686,6 +8933,11 @@
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@@ -8910,6 +9162,14 @@
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@@ -9348,6 +9607,11 @@
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@@ -9558,6 +9821,37 @@
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+      "dependencies": {
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+        "tslib": "^2.6.2",
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+      "resolved": "https://registry.npmjs.org/worker-timers-broker/-/worker-timers-broker-6.1.8.tgz",
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@@ -9594,6 +9888,26 @@
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package.json

@@ -7,9 +7,11 @@
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     "morgan": "^1.10.0",
+    "mqtt": "^5.10.1",
     "tslib": "^2.3.0"
   },
   "devDependencies": {