mirror of https://github.com/Lissy93/dashy.git
97 lines
3.9 KiB
JavaScript
97 lines
3.9 KiB
JavaScript
/**
|
|
* Note: The app must first be built (yarn build) before this script is run
|
|
* This is the main entry point for the application, a simple server that
|
|
* runs some checks, and then serves up the app from the ./dist directory
|
|
* Also includes some routes for status checks/ ping and config saving
|
|
* */
|
|
|
|
/* Include required node dependencies */
|
|
const serveStatic = require('serve-static');
|
|
const connect = require('connect');
|
|
const util = require('util');
|
|
const dns = require('dns');
|
|
const os = require('os');
|
|
const bodyParser = require('body-parser');
|
|
|
|
/* Kick of some basic checks */
|
|
require('./services/update-checker'); // Checks if there are any updates available, prints message
|
|
require('./services/config-validator'); // Include and kicks off the config file validation script
|
|
|
|
/* Include route handlers for API endpoints */
|
|
const statusCheck = require('./services/status-check'); // Used by the status check feature, uses GET
|
|
const saveConfig = require('./services/save-config'); // Saves users new conf.yml to file-system
|
|
const rebuild = require('./services/rebuild-app'); // A script to programmatically trigger a build
|
|
|
|
/* Helper functions, and default config */
|
|
const printMessage = require('./services/print-message'); // Function to print welcome msg on start
|
|
const ENDPOINTS = require('./src/utils/defaults').serviceEndpoints; // API endpoint URL paths
|
|
|
|
/* Checks if app is running within a container, from env var */
|
|
const isDocker = !!process.env.IS_DOCKER;
|
|
|
|
/* Checks env var for port. If undefined, will use Port 80 for Docker, or 4000 for metal */
|
|
const port = process.env.PORT || (isDocker ? 80 : 4000);
|
|
|
|
/* Attempts to get the users local IP, used as part of welcome message */
|
|
const getLocalIp = () => {
|
|
const dnsLookup = util.promisify(dns.lookup);
|
|
return dnsLookup(os.hostname());
|
|
};
|
|
|
|
/* Gets the users local IP and port, then calls to print welcome message */
|
|
const printWelcomeMessage = () => {
|
|
getLocalIp().then(({ address }) => {
|
|
const ip = address || 'localhost';
|
|
console.log(printMessage(ip, port, isDocker)); // eslint-disable-line no-console
|
|
});
|
|
};
|
|
|
|
/* Just console.warns an error */
|
|
const printWarning = (msg, error) => {
|
|
console.warn(`\x1b[103m\x1b[34m${msg}\x1b[0m\n`, error || ''); // eslint-disable-line no-console
|
|
};
|
|
|
|
/* A middleware function for Connect, that filters requests based on method type */
|
|
const method = (m, mw) => (req, res, next) => (req.method === m ? mw(req, res, next) : next());
|
|
|
|
try {
|
|
connect()
|
|
.use(bodyParser.json())
|
|
// Serves up the main built application to the root
|
|
.use(serveStatic(`${__dirname}/dist`))
|
|
// During build, a custom page will be served before the app is available
|
|
.use(serveStatic(`${__dirname}/public`, { index: 'default.html' }))
|
|
// GET endpoint to run status of a given URL with GET request
|
|
.use(ENDPOINTS.statusCheck, (req, res) => {
|
|
try {
|
|
statusCheck(req.url, async (results) => {
|
|
await res.end(results);
|
|
});
|
|
} catch (e) {
|
|
printWarning(`Error running status check for ${req.url}\n`, e);
|
|
}
|
|
})
|
|
// POST Endpoint used to save config, by writing conf.yml to disk
|
|
.use(ENDPOINTS.save, method('POST', (req, res) => {
|
|
try {
|
|
saveConfig(req.body, (results) => { res.end(results); });
|
|
} catch (e) {
|
|
res.end(JSON.stringify({ success: false, message: e }));
|
|
}
|
|
}))
|
|
// GET endpoint to trigger a build, and respond with success status and output
|
|
.use(ENDPOINTS.rebuild, (req, res) => {
|
|
rebuild().then((response) => {
|
|
res.end(JSON.stringify(response));
|
|
}).catch((response) => {
|
|
res.end(JSON.stringify(response));
|
|
});
|
|
})
|
|
// Finally, initialize the server then print welcome message
|
|
.listen(port, () => {
|
|
try { printWelcomeMessage(); } catch (e) { printWarning('Dashy is Starting...'); }
|
|
});
|
|
} catch (error) {
|
|
printWarning('Sorry, a critical error occurred ', error);
|
|
}
|