80 lines
2.5 KiB
TypeScript
80 lines
2.5 KiB
TypeScript
import express from 'express';
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import bodyParser from 'body-parser';
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import swagger from 'swagger-ui-express';
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import jsonRefParser, {JSONSchema} from '@apidevtools/json-schema-ref-parser';
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import contentFilter from 'content-filter';
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import mongoSanitize from 'mongo-sanitize';
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import db from './db';
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// tell if server is running in debug or production environment
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console.log(process.env.NODE_ENV === 'production' ? '===== PRODUCTION =====' : process.env.NODE_ENV === 'test' ? '' :'===== DEVELOPMENT =====');
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// mongodb connection
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db.connect();
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// create Express app
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const app = express();
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app.disable('x-powered-by');
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// get port from environment, defaults to 3000
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const port = process.env.PORT || 3000;
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//middleware
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app.use(express.json({ limit: '5mb'}));
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app.use(express.urlencoded({ extended: false, limit: '5mb' }));
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app.use(bodyParser.json());
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app.use(contentFilter()); // filter URL query attacks
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app.use((req, res, next) => { // filter body query attacks
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req.body = mongoSanitize(req.body);
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next();
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});
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app.use((err, req, res, ignore) => { // bodyParser error handling
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res.status(400).send({status: 'Invalid JSON body'});
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});
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app.use((req, res, next) => { // no database connection error
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if (db.getState().db) {
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next();
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}
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else {
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res.status(500).send({status: 'Internal server error'});
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}
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});
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app.use(require('./helpers/authorize')); // handle authentication
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// require routes
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app.use('/', require('./routes/root'));
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app.use('/', require('./routes/user'));
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app.use('/', require('./routes/material'));
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app.use('/', require('./routes/template'));
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// static files
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app.use('/static', express.static('static'));
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// Swagger UI
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let apiDoc: JSONSchema = {};
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jsonRefParser.bundle('api/api.yaml', (err, doc) => {
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if(err) throw err;
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apiDoc = doc;
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apiDoc.paths = apiDoc.paths.allOf.reduce((s, e) => Object.assign(s, e));
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swagger.setup(apiDoc, {defaultModelsExpandDepth: -1, customCss: '.swagger-ui .topbar { display: none }'});
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});
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app.use('/api', swagger.serve, swagger.setup(apiDoc, {customCssUrl: '/static/styles/swagger.css'}));
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app.use((req, res) => { // 404 error handling
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res.status(404).json({status: 'Not found'});
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});
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app.use((err, req, res, ignore) => { // internal server error handling
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console.error(err);
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res.status(500).json({status: 'Internal server error'});
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});
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// hook up server to port
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const server = app.listen(port, () => {
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console.log(process.env.NODE_ENV === 'test' ? '' : `Listening on http://localhost:${port}`);
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});
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module.exports = server; |