D-Net

import 'zone.js/dist/zone-node';

import 'reflect-metadata';

import { renderModuleFactory } from '@angular/platform-server';

import { enableProdMode } from '@angular/core';

import * as express from 'express';

import { join } from 'path';

import { readFileSync } from 'fs';

// Faster server renders w/ Prod mode (dev mode never needed)

enableProdMode();

// Express server

const app = express();

const PORT = process.env.PORT || 4000;

const DIST_FOLDER = join(process.cwd(), 'dist');

// Our index.html we'll use as our template

const template = readFileSync(join(DIST_FOLDER, 'browser', 'index.html')).toString();

// * NOTE :: leave this as require() since this file is built Dynamically from webpack

const { AppServerModuleNgFactory, LAZY_MODULE_MAP } = require('./dist/server/main');

// Express Engine

import {ngExpressEngine, RenderOptions} from '@nguniversal/express-engine';

// Import module map for lazy loading

import { provideModuleMap } from '@nguniversal/module-map-ngfactory-loader';

import {REQUEST, RESPONSE} from "@nguniversal/express-engine/tokens";

import {isArray} from "util";

// Our Universal express-engine (found @ https://github.com/angular/universal/tree/master/modules/express-engine)

// app.engine('html', ngExpressEngine({

//   bootstrap: AppServerModuleNgFactory,

//   providers: [

//      { provide: 'request', useFactory: () => options.req, deps: [] },

//     provideModuleMap(LAZY_MODULE_MAP)

//   ]

// }));

// be able to get request and get domain from there

app.engine('html', (_, options: any, callback) => {

  const opts = {

    document: template,

    url: options.req.url,

    extraProviders: [

      provideModuleMap(LAZY_MODULE_MAP),

      {

        provide: REQUEST,

        useValue: options.req

      },

      {

        provide: RESPONSE,

        useValue: options.req.res,

      },

    ]

  };

  renderModuleFactory(AppServerModuleNgFactory, opts)

    .then(html => callback(null, html)

    );

});

app.set('view engine', 'html');

app.set('views', join(DIST_FOLDER, 'browser'));

// Allow frames from specific domains

app.use(function (req, res, next) {

  var XFRAME_WHITELIST = [ 'http://scoobydoo.di.uoa.gr:5000/customize-layout', 'https://beta.admin.connect.openaire.eu/customize-layout','https://admin.connect.openaire.eu/customize-layout'  ];

  let referer: string;

  if(req.headers.referer){

    referer = isArray(req.headers.referer)?req.headers.referer[0]:(<string>req.headers.referer);

    referer = referer.split("?")[0];

  }

  if (  referer &&  (XFRAME_WHITELIST.indexOf(referer) != -1  || referer.indexOf(".d4science.org") != -1)) {

    // res.header('X-FRAME-OPTIONS', 'allow from ' +req.headers.referer);

  }else {

    res.header('X-FRAME-OPTIONS', 'SAMEORIGIN');

  }

  next();

});

 // - Serve sitemap based on the host -

  app.get('/sitemap.xml', (req, res) => {

    let host = req.get("host").split(":")[0];

    let connectLinks= ["/","/about/learn-how","/about/learn-in-depth", "/about/faq","/search/find/communities"];

    let communityLinks= ["/","/search/find/research-outcomes?size=20","/search/advanced/research-outcomes?size=20","/participate/deposit/learn-how","/organizations", "/content"];

    let sitemap = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +

      "<urlset xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd\">";

    let urlPre = "<url>\n" +

      "    <loc>";

    let urlSuf = "</loc>\n" +

      "    </url>";

    for(let link of (host.indexOf("connect.openaire.eu") == -1 ?communityLinks:connectLinks)){

      sitemap += urlPre + "https://" + host + link + urlSuf;

     }

    sitemap += "\n</urlset>";

    res.setHeader('content-type', 'application/xml');

    res.send( sitemap);

  });

app.get('/robots.txt', (req, res) => {

  let host = req.get("host").split(":")[0];

  let robots = "";

  if(host.indexOf(".openaire.eu") != -1 && host.indexOf("beta.") == -1 ){

    //link to disallow

    let connectLinks= ["/about/*","/search/find/communities"];

    let communityLinks= ["/search/advanced/*","/participate/*",

      "/search/project",'/search/result', '/search/publication', '/search/dataset','/search/software','/search/other','/search/dataprovider','/search/organization','/project-report',

      '/search/find/publications','/search/find/datasets','/search/find/software','/search/find/other','/search/find/projects','/search/find/dataproviders','/search/find/research-outcomes'

    ];

    robots = "User-Agent: *\n"+

    "Crawl-delay: 30\n" +

      "Sitemap: /sitemap.xml\n";

    for(let link of (host.indexOf("connect.openaire.eu") == -1 ?connectLinks:communityLinks)){

      robots +=  "Disallow: " + link +  "\n";

    }

  }else{

    robots = "User-Agent: *\n" +

      "Disallow: /\n"

  }

  res.setHeader('content-type', 'text/plain');

  res.send( robots);

});

/* - Example Express Rest API endpoints -

  app.get('/api/**', (req, res) => { });

*/

// Server static files from /browser

app.get('*.*', express.static(join(DIST_FOLDER, 'browser'), {

  maxAge: '1y'

}));

// ALl regular routes use the Universal engine

app.get('*', (req, res) => {

  res.render('index', { req });

});

// Start up the Node server

app.listen(PORT, () => {

  console.log(`Node Express server listening on http://localhost:${PORT}`);

});