monitor-dashboard/server.ts

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import 'zone.js/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 {properties} from "./src/environments/environment";
import axios, {AxiosHeaders} from "axios";
import {Stakeholder} from "./src/app/openaireLibrary/monitor/entities/stakeholder";
import {CacheIndicators} from "./src/app/openaireLibrary/monitor-admin/utils/cache-indicators/cache-indicators";
import {Session, User} from "./src/app/openaireLibrary/login/utils/helper.class";
import {UserManagementService} from "./src/app/openaireLibrary/services/user-management.service";
var bodyParser = require('body-parser');
var jsonParser = bodyParser.json();
// 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/monitor-dashboard/browser');
const indexHtml = existsSync(join(distFolder, 'index.original.html')) ? 'index.original.html' : 'index';
let cacheIndicators: CacheIndicators = new CacheIndicators();
// Our Universal express-engine (found @ https://github.com/angular/universal/tree/master/modules/express-engine)
server.engine('html', ngExpressEngine({
bootstrap: AppServerModule,
inlineCriticalCss: false
}));
server.set('view engine', 'html');
server.set('views', distFolder);
server.use('/cache', 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.post('/cache/:alias', jsonParser, async (req, res) => {
await checkPermissions(req, res, (stakeholder, user) => {
if (cacheIndicators.completed(stakeholder._id)) {
res.send({
id: stakeholder._id,
report: cacheIndicators.createReport(stakeholder._id, cacheIndicators.stakeholderToCacheItems(stakeholder), stakeholder.name, user.email)
});
} else {
res.status(409).send('There is another active caching process for this stakeholder');
}
});
});
server.get('/cache/:alias', async (req, res) => {
await checkPermissions(req, res, stakeholder => {
if (cacheIndicators.exists(stakeholder._id)) {
res.send({
id: stakeholder._id,
report: cacheIndicators.getReport(stakeholder._id)
});
} else {
res.status(404).send('There is not an active caching process for this stakeholder');
}
});
});
async function checkPermissions(req, res, access: (stakeholder, user) => void) {
let headers: AxiosHeaders = new AxiosHeaders();
headers.set('Cookie', req.headers.cookie);
let userinfoRes = (await axios.get<any>(UserManagementService.userInfoUrl(), {
withCredentials: true,
headers: headers
}).catch(error => {
return error.response;
}));
if (userinfoRes.status === 200) {
let user = new User(userinfoRes.data);
let stakeholderRes = (await axios.get<Stakeholder>(properties.monitorServiceAPIURL + '/stakeholder/' + encodeURIComponent(req.params.alias), {
withCredentials: true,
headers: headers
}).catch(error => {
return error.response;
}));
if (stakeholderRes.status === 200) {
let stakeholder = stakeholderRes.data;
if (Session.isPortalAdministrator(user) || Session.isCurator(stakeholder.type, user)) {
access(stakeholder, user);
} else {
res.status(403).send('You are forbidden to access this resource');
}
} else {
res.status(stakeholderRes.status).send(stakeholderRes.statusText);
}
} else {
res.status(userinfoRes.status).send(userinfoRes.data.message);
}
}
// 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';