connect/server.ts

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import 'zone.js/dist/zone-node';
import {ngExpressEngine} from '@nguniversal/express-engine';
import * as express from 'express';
import * as compression from 'compression';
import {join} from 'path';
import {AppServerModule} from './src/main.server';
import {APP_BASE_HREF} from '@angular/common';
import {existsSync} from 'fs';
import {REQUEST, RESPONSE} from "./src/app/openaireLibrary/utils/tokens";
import {isArray} from "util";
import {properties} from "./src/environments/environment";
import {Layout} from "./src/app/openaireLibrary/connect/community/CustomizationOptions";
import {Response} from "express";
const fs = require('fs');
const less = require('less');
const minify = require('@node-minify/core');
const cleanCSS = require('@node-minify/clean-css');
const axios = require('axios');
const browser = process.cwd() + '/dist/connect/browser/';
const node_modules = process.cwd() + '/node_modules';
var bodyParser = require('body-parser')
var jsonParser = bodyParser.json()
function buildCss(portal: string, suffix = null, variables: {} = null) {
let lessFile = 'community.less'
if (portal === 'connect') {
lessFile = 'connect.less'
}
let input = fs.readFileSync(browser + '/assets/' + lessFile, 'utf8');
/* Change fonts path */
let modifyVars = {
'@font-media-url': 'e("assets/openaire-theme/media/fonts/aileron/")',
'@font-media-icon-url': 'e("assets/openaire-theme/media/fonts/material-icons/")'
}
/* Change variables (optional)*/
if (variables) {
Object.entries(variables).forEach(([key, value]) => {
modifyVars[key] = value;
});
}
let options = {
paths: [browser + '/assets/', node_modules],
rewriteUrls: 'all',
modifyVars: modifyVars
};
less.render(input, options, function (error, result) {
if (error) {
console.log(error);
} else {
let file = browser + portal + (suffix ? ("-" + suffix) : "") + '.css';
fs.writeFile(file, result.css, function (error) {
if (error) {
console.error(error);
} else {
minify({
compressor: cleanCSS,
replaceInPlace: true,
input: file,
output: file,
callback: function (err) {
if (err) {
console.log(err);
}
}
});
}
});
}
});
}
function buildAll(res: Response = null) {
let layoutsURL = properties.adminToolsAPIURL + '/community/layouts';
axios.get(layoutsURL).then(response => {
if (response.data && Array.isArray(response.data) && response.data.length > 0) {
response.data.forEach((layout: Layout) => {
let variables = Layout.getVariables(layout.layoutOptions);
if (variables) {
buildCss(layout.portalPid, layout.date ? layout.date : null, variables);
}
});
if (res) {
res.status(200).send({
code: 200,
message: 'CSS build for all available layouts was successful'
});
}
} else {
res.status(500).send({code: 500, message: 'No available layouts found'});
}
});
}
buildCss('connect');
buildCss('default');
buildAll();
// The Express app is exported so that it can be used by serverless Functions.
export function app() {
const server = express();
server.use(compression());
const distFolder = join(process.cwd(), 'dist/connect/browser');
const indexHtml = existsSync(join(distFolder, 'index.original.html')) ? 'index.original.html' : 'index';
// Our Universal express-engine (found @ https://github.com/angular/universal/tree/master/modules/express-engine)
server.engine('html', ngExpressEngine({
bootstrap: AppServerModule,
}));
server.set('view engine', 'html');
server.set('views', distFolder);
server.use('/build-css', function (req, res, next) {
res.header('Access-Control-Allow-Origin', req.headers.origin);
res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
res.header('Access-Control-Allow-Methods', 'GET, OPTIONS, POST, DELETE');
res.header('Access-Control-Max-Age', "1800");
next();
});
server.use(function (req, res, next) {
var XFRAME_WHITELIST = ['http://spitoo.di.uoa.gr:5000/', 'http://scoobydoo.di.uoa.gr:5000/', 'https://beta.admin.connect.openaire.eu/', 'https://admin.connect.openaire.eu/'];
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("/customize-layout") != -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 -
server.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);
});
// - Serve robots based on the host -
server.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);
});
server.post('/build-css/all', (req, res) => {
buildAll(res);
});
server.post('/build-css/:id/:suffix', (req, res) => {
let layoutURL = properties.adminToolsAPIURL + '/community/' + req.params.id + '/layout';
axios.get(layoutURL).then(response => {
if (response.data) {
let variables = Layout.getVariables(response.data);
if (variables) {
buildCss(response.data.portalPid, req.params.suffix, variables);
}
res.status(200).send({
code: 200,
message: 'CSS build for ' + response.data.portalPid + ' layout was successful'
});
} else {
res.status(500).send({code: 500, message: 'No layout found'});
}
}).catch(function (error) {
res.status(500).send({code: 500, message: 'No layout found'});
});
});
server.post('/build-css/preview/:id/:suffix', jsonParser, (req, res) => {
let variables = Layout.getVariables(req.body);
if (variables) {
buildCss(req.params.id, req.params.suffix, variables);
res.status(200).send({code: 200, message: 'CSS build for ' + req.params.id + ' layout was successful'});
} else {
res.status(500).send({code: 500, message: 'No layout found'});
}
});
// Example Express Rest API endpoints
// server.get('/api/**', (req, res) => { });
// Serve static files from /browser
server.get('*.*', express.static(distFolder, {
maxAge: '1y'
}));
// All regular routes use the Universal engine
server.get('*', (req, res) => {
res.render(indexHtml, {
req, providers: [
{
provide: APP_BASE_HREF,
useValue: req.baseUrl
},
{
provide: REQUEST, useValue: (req)
},
{
provide: RESPONSE, useValue: (res)
}
]
}
);
});
return server;
}
function run() {
const port = process.env.PORT || 4000;
// Start up the Node server
const server = app();
server.listen(port, () => {
console.log(`Node Express server listening on http://localhost:${port}`);
});
}
// Webpack will replace 'require' with '__webpack_require__'
// '__non_webpack_require__' is a proxy to Node 'require'
// The below code is to ensure that the server is run only when not requiring the bundle.
declare const __non_webpack_require__: NodeRequire;
const mainModule = __non_webpack_require__.main;
const moduleFilename = mainModule && mainModule.filename || '';
if (moduleFilename === __filename || moduleFilename.includes('iisnode')) {
run();
}
export * from './src/main.server';