text: /**
   * Copyright (c) 2017, FinancialForce.com, inc
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without modification,
   *   are permitted provided that the following conditions are met:
   *
   * - Redistributions of source code must retain the above copyright notice,
   *      this list of conditions and the following disclaimer.
   * - Redistributions in binary form must reproduce the above copyright notice,
   *      this list of conditions and the following disclaimer in the documentation
   *      and/or other materials provided with the distribution.
   * - Neither the name of the FinancialForce.com, inc nor the names of its contributors
   *      may be used to endorse or promote products derived from this software without
   *      specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
   *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   *  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
   *  THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   *  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
   *  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   **/
  
  'use strict';
  
  const
  	bodyParser = require('body-parser'),
  	debug = require('debug-plus')('df17~heroku~compute:server:server'),
  	express = require('express'),
  	helmet = require('helmet'),
  
  	Auth = require('./middleware/auth'),
  	Primes = require('./routes/primes'),
  
  	HELMET_CONFIG = Object.freeze({
  		frameguard: { action: 'deny' },
  		xssFilter: true
  	});
  
  class Server {
  	static init() {
  		const
  			app = express(),
  			port = process.env.PORT || 8080;
  
  		// Reads request.body
  		app.use(bodyParser.json());
  
  		// Sets various HTTP headers that make the response
  		// more secure
  		app.use(helmet(HELMET_CONFIG));
  
  		// Ensures header contains Salesforce org details
  		// so we can send the response back to the correct org
  		app.use(Auth.middleware);
  
  		// Adds "/primes" route
  		Primes.addRoute(app);
  
  		// Start server.
  		// Return it so that the caller can close it (helpful in tests)
  		debug('server listening on port: %s', port);
  		return app.listen(port);
  	}
  }
  
  module.exports = Server;
  