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';
12 } from '../shared/interfaces';
13 import { routes } from '../shared/routes';
14 import IsomorphicCookie from 'isomorphic-cookie';
15 import { GetSite, LemmyHttp } from 'lemmy-js-client';
16 import process from 'process';
17 import { Helmet } from 'inferno-helmet';
18 import { initializeSite } from '../shared/initialize';
19 import { httpUri } from '../shared/env';
20 import { IncomingHttpHeaders } from 'http';
21 import { setOptionalAuth } from '../shared/utils';
23 const server = express();
26 server.use(express.json());
27 server.use(express.urlencoded({ extended: false }));
28 server.use('/static', express.static(path.resolve('./dist')));
30 // server.use(cookieParser());
32 server.get('/*', async (req, res) => {
33 const activeRoute = routes.find(route => matchPath(req.path, route)) || {};
34 const context = {} as any;
35 let auth: string = IsomorphicCookie.load('jwt', req);
37 let getSiteForm: GetSite = {};
38 setOptionalAuth(getSiteForm, auth);
40 let promises: Promise<any>[] = [];
42 let headers = setForwardedHeaders(req.headers);
44 let initialFetchReq: InitialFetchRequest = {
45 client: new LemmyHttp(httpUri, headers),
50 // Get site data first
51 let site = await initialFetchReq.client.getSite(getSiteForm);
54 if (activeRoute.fetchInitialData) {
55 promises.push(...activeRoute.fetchInitialData(initialFetchReq));
58 let routeData = await Promise.all(promises);
60 // Redirect to the 404 if there's an API error
61 if (routeData[0] && routeData[0].error) {
62 let errCode = routeData[0].error;
63 return res.redirect(`/404?err=${errCode}`);
66 let acceptLang = req.headers['accept-language']
67 ? req.headers['accept-language'].split(',')[0]
69 let lang = site.my_user
70 ? site.my_user.lang == 'browser'
75 let isoData: IsoData = {
83 <StaticRouter location={req.url} context={isoData}>
84 <App siteRes={isoData.site_res} />
88 return res.redirect(context.url);
93 http-equiv="Content-Security-Policy"
94 content="default-src data: 'self'; connect-src * ws: wss:; frame-src *; img-src * data:; script-src 'self'; style-src 'self' 'unsafe-inline'; manifest-src 'self'"
98 const root = renderToString(wrapper);
99 const cspStr = process.env.LEMMY_EXTERNAL_HOST ? renderToString(cspHtml) : '';
100 const helmet = Helmet.renderStatic();
102 const config: ILemmyConfig = { wsHost: process.env.LEMMY_WS_HOST };
106 <html ${helmet.htmlAttributes.toString()} lang="en">
108 <script>window.isoData = ${serialize(isoData)}</script>
109 <script>window.lemmyConfig = ${serialize(config)}</script>
111 ${helmet.title.toString()}
112 ${helmet.meta.toString()}
114 <!-- Required meta tags -->
115 <meta name="Description" content="Lemmy">
116 <meta charset="utf-8">
117 <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
119 <!-- Content Security Policy -->
122 <!-- Web app manifest -->
123 <link rel="manifest" href="/static/assets/manifest.webmanifest">
126 <link rel="shortcut icon" type="image/svg+xml" href="/static/assets/icons/favicon.svg" />
127 <link rel="apple-touch-icon" href="/static/assets/icons/apple-touch-icon.png" />
130 <link rel="stylesheet" type="text/css" href="/static/styles/styles.css" />
132 <!-- Current theme and more -->
133 ${helmet.link.toString()}
136 <body ${helmet.bodyAttributes.toString()}>
138 <div class="alert alert-danger rounded-0" role="alert">
139 <b>Javascript is disabled. Actions will not work.</b>
143 <div id='root'>${root}</div>
144 <script defer src='/static/js/client.js'></script>
150 server.listen(port, () => {
151 console.log(`http://localhost:${port}`);
154 function setForwardedHeaders(
155 headers: IncomingHttpHeaders
156 ): { [key: string]: string } {
160 if (headers['x-real-ip']) {
161 out['x-real-ip'] = headers['x-real-ip'];
163 if (headers['x-forwarded-for']) {
164 out['x-forwarded-for'] = headers['x-forwarded-for'];
170 process.on('SIGINT', () => {
171 console.info('Interrupted');