1 import serialize from 'serialize-javascript';
2 import express from 'express';
3 import { StaticRouter } from 'inferno-router';
4 import { renderToString } from 'inferno-server';
5 import { matchPath } from 'inferno-router';
6 import path from 'path';
7 import { App } from '../shared/components/app';
8 import { InitialFetchRequest, IsoData } from '../shared/interfaces';
9 import { routes } from '../shared/routes';
10 import IsomorphicCookie from 'isomorphic-cookie';
11 import { GetSite, LemmyHttp } from 'lemmy-js-client';
12 import process from 'process';
13 import { Helmet } from 'inferno-helmet';
14 import { initializeSite } from '../shared/initialize';
15 import { httpUri } from '../shared/env';
16 import { IncomingHttpHeaders } from 'http';
18 const server = express();
21 server.use(express.json());
22 server.use(express.urlencoded({ extended: false }));
23 server.use('/static', express.static(path.resolve('./dist')));
25 // server.use(cookieParser());
27 server.get('/*', async (req, res) => {
28 const activeRoute = routes.find(route => matchPath(req.path, route)) || {};
29 const context = {} as any;
30 let auth: string = IsomorphicCookie.load('jwt', req);
32 let getSiteForm: GetSite = { auth };
34 let promises: Promise<any>[] = [];
36 let headers = setForwardedHeaders(req.headers);
38 let initialFetchReq: InitialFetchRequest = {
39 client: new LemmyHttp(httpUri, headers),
44 // Get site data first
45 let site = await initialFetchReq.client.getSite(getSiteForm);
48 if (activeRoute.fetchInitialData) {
49 promises.push(...activeRoute.fetchInitialData(initialFetchReq));
52 let routeData = await Promise.all(promises);
54 // Redirect to the 404 if there's an API error
55 if (routeData[0] && routeData[0].error) {
56 let errCode = routeData[0].error;
57 return res.redirect(`/404?err=${errCode}`);
60 let acceptLang = req.headers['accept-language']
61 ? req.headers['accept-language'].split(',')[0]
63 let lang = !!site.my_user
64 ? site.my_user.lang == 'browser'
69 let isoData: IsoData = {
77 <StaticRouter location={req.url} context={isoData}>
78 <App siteRes={isoData.site_res} />
82 return res.redirect(context.url);
87 http-equiv="Content-Security-Policy"
88 content="default-src data:; connect-src * ws: wss:; frame-src *; img-src * data:; script-src 'self'; style-src 'self' 'unsafe-inline'"
92 const root = renderToString(wrapper);
93 const cspStr = process.env.LEMMY_EXTERNAL_HOST ? renderToString(cspHtml) : '';
94 const helmet = Helmet.renderStatic();
98 <html ${helmet.htmlAttributes.toString()} lang="en">
100 <script>window.isoData = ${serialize(isoData)}</script>
102 ${helmet.title.toString()}
103 ${helmet.meta.toString()}
105 <!-- Required meta tags -->
106 <meta name="Description" content="Lemmy">
107 <meta charset="utf-8">
108 <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
110 <!-- Content Security Policy -->
113 <!-- Web app manifest -->
114 <link rel="manifest" href="/static/assets/manifest.webmanifest">
117 <link rel="shortcut icon" type="image/svg+xml" href="/static/assets/icons/favicon.svg" />
118 <link rel="apple-touch-icon" href="/static/assets/icons/apple-touch-icon.png" />
121 <link rel="stylesheet" type="text/css" href="/static/styles/styles.css" />
123 <!-- Current theme and more -->
124 ${helmet.link.toString()}
127 <body ${helmet.bodyAttributes.toString()}>
129 <div class="alert alert-danger rounded-0" role="alert">
130 <b>Javascript is disabled. Actions will not work.</b>
134 <div id='root'>${root}</div>
135 <script defer src='/static/js/client.js'></script>
141 server.listen(port, () => {
142 console.log(`http://localhost:${port}`);
145 function setForwardedHeaders(
146 headers: IncomingHttpHeaders
147 ): { [key: string]: string } {
151 if (headers['x-real-ip']) {
152 out['x-real-ip'] = headers['x-real-ip'];
154 if (headers['x-forwarded-for']) {
155 out['x-forwarded-for'] = headers['x-forwarded-for'];
161 process.on('SIGINT', () => {
162 console.info('Interrupted');