LouisLam
4 years ago
9 changed files with 284 additions and 96 deletions
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# Uptime Kuma |
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# Features |
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* Monitoring uptime for HTTP(s) / TCP / Ping. |
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* Fancy, Reactive, Fast UI/UX. |
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* Notifications via Webhook, Telegram, Discord and email (SMTP). |
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* 20 seconds interval. |
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# How to Use |
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npm |
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Docker |
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One-click Deploy to DigitalOcean |
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# Motivation |
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* I was looking for a self-hosted monitoring tool like "Uptime Robot", but it is hard to find a suitable one. |
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* Want to build a fancy UI. |
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* Learn Vue 3 and vite.js. |
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* Show the power of Bootstrap 5. |
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* Try to use WebSocket with SPA instead of REST API. |
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* Deploy my first Docker image to Docker Hub. |
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If you love this project, please consider giving me a ⭐. |
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// https://github.com/ben-bradley/ping-lite/blob/master/ping-lite.js
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// Fixed on Windows
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var spawn = require('child_process').spawn, |
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events = require('events'), |
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fs = require('fs'), |
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WIN = /^win/.test(process.platform), |
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LIN = /^linux/.test(process.platform), |
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MAC = /^darwin/.test(process.platform); |
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module.exports = Ping; |
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function Ping(host, options) { |
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if (!host) |
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throw new Error('You must specify a host to ping!'); |
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this._host = host; |
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this._options = options = (options || {}); |
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events.EventEmitter.call(this); |
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if (WIN) { |
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this._bin = 'c:/windows/system32/ping.exe'; |
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this._args = (options.args) ? options.args : [ '-n', '1', '-w', '5000', host ]; |
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this._regmatch = /[><=]([0-9.]+?)ms/; |
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} |
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else if (LIN) { |
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this._bin = '/bin/ping'; |
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this._args = (options.args) ? options.args : [ '-n', '-w', '2', '-c', '1', host ]; |
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this._regmatch = /=([0-9.]+?) ms/; // need to verify this
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} |
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else if (MAC) { |
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this._bin = '/sbin/ping'; |
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this._args = (options.args) ? options.args : [ '-n', '-t', '2', '-c', '1', host ]; |
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this._regmatch = /=([0-9.]+?) ms/; |
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} |
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else { |
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throw new Error('Could not detect your ping binary.'); |
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} |
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if (!fs.existsSync(this._bin)) |
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throw new Error('Could not detect '+this._bin+' on your system'); |
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this._i = 0; |
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return this; |
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} |
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Ping.prototype.__proto__ = events.EventEmitter.prototype; |
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// SEND A PING
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// ===========
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Ping.prototype.send = function(callback) { |
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var self = this; |
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callback = callback || function(err, ms) { |
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if (err) return self.emit('error', err); |
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else return self.emit('result', ms); |
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}; |
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var _ended, _exited, _errored; |
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this._ping = spawn(this._bin, this._args); // spawn the binary
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this._ping.on('error', function(err) { // handle binary errors
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_errored = true; |
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callback(err); |
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}); |
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this._ping.stdout.on('data', function(data) { // log stdout
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this._stdout = (this._stdout || '') + data; |
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}); |
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this._ping.stdout.on('end', function() { |
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_ended = true; |
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if (_exited && !_errored) onEnd.call(self._ping); |
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}); |
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this._ping.stderr.on('data', function(data) { // log stderr
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this._stderr = (this._stderr || '') + data; |
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}); |
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this._ping.on('exit', function(code) { // handle complete
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_exited = true; |
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if (_ended && !_errored) onEnd.call(self._ping); |
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}); |
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function onEnd() { |
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var stdout = this.stdout._stdout, |
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stderr = this.stderr._stderr, |
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ms; |
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if (stderr) |
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return callback(new Error(stderr)); |
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else if (!stdout) |
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return callback(new Error('No stdout detected')); |
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ms = stdout.match(self._regmatch); // parse out the ##ms response
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ms = (ms && ms[1]) ? Number(ms[1]) : ms; |
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callback(null, ms); |
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} |
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}; |
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// CALL Ping#send(callback) ON A TIMER
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// ===================================
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Ping.prototype.start = function(callback) { |
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var self = this; |
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this._i = setInterval(function() { |
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self.send(callback); |
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}, (self._options.interval || 5000)); |
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self.send(callback); |
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}; |
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// STOP SENDING PINGS
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// ==================
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Ping.prototype.stop = function() { |
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clearInterval(this._i); |
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}; |
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