144 lines
3.5 KiB
JavaScript
144 lines
3.5 KiB
JavaScript
const express = require('express');
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const compression = require('compression');
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const util = require('util');
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const fs = require('fs');
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const path = require('path');
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const os = require('os');
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const exec = util.promisify(require('child_process').exec);
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const readFileAsync = util.promisify(fs.readFile)
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const app = express(); // app is an instance of express
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app.use(compression()); // enables gzip compression
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app.options('/dvbStatus', (req, res) => {
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res.set({
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'Access-Control-Allow-Origin': '*',
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'Access-Control-Allow-Methods': ' GET, OPTIONS',
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'Access-Control-Allow-Headers': 'Content-Type',
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'Access-Control-Max-Age': 600
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})
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res.status(200).end();
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})
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app.get('/dvbStatus', async (req, res) => {
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res.set({
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'Access-Control-Allow-Origin': '*'
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});
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//const { stdout, stderr } = await exec('/media/hd/data/projects/dvb-t-status');
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const { stdout, stderr } = await exec('DTV');
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let i = parseInt(stdout);
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i = i*1e-6; // i is in Hz; divide by 1M to have MHz
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res.send({
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"id": "dvb-t-status",
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"data": `Frontend Frequency: ${i} Mhz`,
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"stderr": stderr
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});
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});
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app.options('/dvbChannel', (req, res) => {
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res.set({
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'Access-Control-Allow-Origin': '*',
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'Access-Control-Allow-Methods': ' GET, OPTIONS',
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'Access-Control-Allow-Headers': 'Content-Type',
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'Access-Control-Max-Age': 600
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})
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res.status(200).end();
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})
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app.get('/dvbChannel', async (req, res) => {
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res.set({
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'Access-Control-Allow-Origin': '*'
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});
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const { stdout, stderr } = await exec('DTV');
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let i = parseInt(stdout);
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i = i*1e-6; // i is in Hz; divide by 1M to have MHz
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readFileAsync(path.join(__dirname,"frequencies.json"))
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.then(res2 => {
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const db = JSON.parse(res2);
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//console.log(db[i]);
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res.send({
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"id": `dvb-t-channel ${db[i]["name"]}`,
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"data": db[i]["channels"].toString(),
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"stderr": stderr
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});
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})
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.catch(err => console.error(err))
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});
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app.options('/internetCheck', async (req, res) => {
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res.set({
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'Access-Control-Allow-Origin': '*',
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'Access-Control-Allow-Methods': ' GET, OPTIONS',
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'Access-Control-Allow-Headers': 'Content-Type',
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'Access-Control-Max-Age': 600
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})
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res.status(200).end();
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})
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app.get('/internetCheck', async (req, res) => {
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res.set({
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'Access-Control-Allow-Origin': '*'
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});
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const { stdout, stderr } = await exec('/media/hd/data/projects/icanhazip');
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res.send(
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{
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"id": "internet-check",
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"data": stdout,
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"stderr": stderr
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}
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)
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});
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app.options('/sysStatus', (req, res) => {
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res.set({
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'Access-Control-Allow-Origin': '*',
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'Access-Control-Allow-Methods': ' GET, OPTIONS',
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'Access-Control-Allow-Headers': 'Content-Type',
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'Access-Control-Max-Age': 600
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})
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res.status(200).end();
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})
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app.get('/sysStatus', async (req, res) => {
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res.set({
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'Access-Control-Allow-Origin': '*'
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});
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readFileAsync('/sys/class/thermal/thermal_zone0/temp')
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.then(res2=>
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{
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res.send(
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{
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"id": "sys-stats",
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"data": `Temp: ${parseFloat(res2)*1e-3.toFixed(2)} °C Load Avg: ${os.loadavg().map(x=>x.toFixed(2)).toString()}`,
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"stderr": ""
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}
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)
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})
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.catch(err=> {
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console.error(err)
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res.send(
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{
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"id": "sys-stats",
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"data": `Load Avg: ${os.loadavg().map(x=>x.toFixed(2)).toString()}`,
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"stderr": err
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}
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)
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})
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});
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app.use(express.static('/var/www/default')); // serve static build site
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// app.get('*', (req, res) => {
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// res.sendFile(__dirname + '/public/index.html');
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// });
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//app.listen(8000,"192.168.10.14", () => console.log('listen on 8000'));
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app.listen(process.env.NODE_PORT,'127.0.0.80', () => console.log('listen on 3000'));
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