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definma-api/src/index.ts
2020-07-28 13:59:13 +02:00

125 lines
3.4 KiB
TypeScript

import express from 'express';
import bodyParser from 'body-parser';
import compression from 'compression';
import contentFilter from 'content-filter';
import mongoSanitize from 'mongo-sanitize';
import helmet from 'helmet';
import cors from 'cors';
import api from './api';
import db from './db';
// TODO: check header, also in UI
// tell if server is running in debug or production environment
console.info(process.env.NODE_ENV === 'production' ? '===== PRODUCTION =====' : process.env.NODE_ENV === 'test' ? '' :'===== DEVELOPMENT =====');
// mongodb connection
db.connect();
// create Express app
const app = express();
app.disable('x-powered-by');
// get port from environment, defaults to 3000
const port = process.env.PORT || 3000;
// security headers
const defaultHeaderConfig = {
contentSecurityPolicy: {
directives: {
defaultSrc: [`'none'`],
baseUri: [`'self'`],
formAction: [`'none'`],
frameAncestors: [`'none'`]
}
},
frameguard: {
action: 'deny'
},
permittedCrossDomainPolicies: true,
refererPolicy: true
};
app.use(helmet(defaultHeaderConfig));
// special CSP header for api-doc
app.use('/api-doc', helmet.contentSecurityPolicy({
...defaultHeaderConfig,
directives: {
scriptSrc: [`'self'`],
connectSrc: [`'self'`],
styleSrc: [`'self'`, `'unsafe-inline'`],
imgSrc: [`'self'`, 'data:']
}
}));
// special CSP header for the bosch-logo.svg
app.use('/static/img/bosch-logo.svg', helmet.contentSecurityPolicy({
...defaultHeaderConfig,
directives: {
styleSrc: [`'unsafe-inline'`]
}
}));
// middleware
app.use(contentFilter()); // filter URL query attacks
app.use(express.json({ limit: '5mb'}));
app.use(express.urlencoded({ extended: false, limit: '5mb' }));
app.use(compression()); // compress responses
app.use(bodyParser.json());
app.use((req, res, next) => { // filter body query attacks
req.body = mongoSanitize(req.body);
next();
});
app.use((err, req, res, ignore) => { // bodyParser error handling
res.status(400).send({status: 'Invalid JSON body'});
});
app.use((req, res, next) => { // no database connection error
if (db.getState().db) {
next();
}
else {
console.error('No database connection');
res.status(500).send({status: 'Internal server error'});
}
});
app.use(cors()); // CORS headers
app.use(require('./helpers/authorize')); // handle authentication
// redirect /api routes for Angular proxy in development
if (process.env.NODE_ENV !== 'production') {
app.use('/api/:url([^]+)', (req, res) => {
req.url = '/' + req.params.url;
app.handle(req, res);
});
}
// require routes
app.use('/', require('./routes/root'));
app.use('/', require('./routes/sample'));
app.use('/', require('./routes/material'));
app.use('/', require('./routes/template'));
app.use('/', require('./routes/user'));
app.use('/', require('./routes/measurement'));
// static files
app.use('/static', express.static('static'));
// Swagger UI
app.use('/api-doc', api());
app.use((req, res) => { // 404 error handling
res.status(404).json({status: 'Not found'});
});
app.use((err, req, res, ignore) => { // internal server error handling
console.error(err);
res.status(500).json({status: 'Internal server error'});
});
// hook up server to port
const server = app.listen(port, () => {
console.info(process.env.NODE_ENV === 'test' ? '' : `Listening on http://localhost:${port}`);
});
module.exports = server;