embark-area-51/lib/modules/webserver/server.js

109 lines
3.2 KiB
JavaScript

const async = require('async');
let serveStatic = require('serve-static');
const {canonicalHost, defaultHost, dockerHostSwap} = require('../../utils/host');
const expressWebSocket = require('express-ws');
const express = require('express');
const fs = require('../../core/fs');
require('http-shutdown').extend();
const webSocket = require('ws');
class Server {
constructor(options) {
this.buildDir = options.buildDir;
this.events = options.events;
this.port = options.port || 8000;
this.hostname = dockerHostSwap(options.host) || defaultHost;
this.isFirstStart = true;
this.opened = false;
this.openBrowser = options.openBrowser;
}
start(callback) {
const self = this;
if (this.server && this.server.listening) {
let message = __("a webserver is already running at") + " " +
("http://" + canonicalHost(this.hostname) +
":" + this.port).bold.underline.green;
return callback(null, message);
}
const coverage = serveStatic(fs.dappPath('coverage/__root__/'), {'index': ['index.html', 'index.htm']});
const coverageStyle = serveStatic(fs.dappPath('coverage/'));
const main = serveStatic(this.buildDir, {'index': ['index.html', 'index.htm']});
this.app = express();
const expressWs = expressWebSocket(this.app);
this.app.use(main);
this.app.use('/coverage', coverage);
this.app.use(coverageStyle);
//this.wss = new webSocket.Server({server: this.server});
//this.events.on('outputDone', () => {
// this.wss.clients.forEach((ws) => {
// if (ws.readyState === webSocket.OPEN) {
// ws.send('outputDone');
// }
// });
//});
this.app.ws('/', (_ws, _req) => {});
const wss = expressWs.getWss('/');
self.events.on('outputDone', () => {
wss.clients.forEach(function (client) {
client.send('outputDone');
});
});
self.events.on('outputError', () => {
wss.clients.forEach(function (client) {
client.send('outputError');
});
});
async.waterfall([
function createPlaceholderPage(next) {
if (!self.isFirstStart) {
return next();
}
self.isFirstStart = false;
self.events.request('build-placeholder', next);
},
function listen(next) {
self.server = self.app.listen(self.port, self.hostname, () => {
self.port = self.server.address().port;
next();
});
},
function openBrowser(next) {
if (!self.openBrowser || self.opened) {
return next();
}
self.opened = true;
self.events.request('open-browser', next);
}
], function (err) {
if (err) {
return callback(err);
}
const msg = (
__('webserver available at') + ' ' +
('http://' + canonicalHost(self.hostname) + ':' + self.port).bold.underline.green
);
callback(null, msg, self.port);
});
}
stop(callback) {
if (!this.server || !this.server.listening) {
return callback(null, __("no webserver is currently running"));
}
this.server.close(function() {
callback(null, __("Webserver stopped"));
});
}
}
module.exports = Server;