63 lines
2.3 KiB
JavaScript
63 lines
2.3 KiB
JavaScript
'use strict';
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const assert = require('assert');
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const urlJoin = require('url-join');
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const safeJson = require('../lib/safe-json');
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const sanitizeHtml = require('../lib/sanitize-html');
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const config = require('../lib/config');
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const basePath = config.get('basePath');
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assert(basePath);
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// Since everything after the hash (`#`) won't make it to the server, let's serve a 404
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// page that will potentially redirect them to the correct place if they tried
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// `/r/#room-alias:server/date/2022/10/27` -> `/r/room-alias:server/date/2022/10/27`
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function clientSideRoomAliasHashRedirectRoute(req, res) {
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const cspNonce = res.locals.cspNonce;
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const hydrogenStylesUrl = urlJoin(basePath, '/hydrogen-styles.css');
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const stylesUrl = urlJoin(basePath, '/css/styles.css');
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const jsBundleUrl = urlJoin(basePath, '/js/entry-client-room-alias-hash-redirect.es.js');
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const context = {
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config: {
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basePath,
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},
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};
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const serializedContext = JSON.stringify(context);
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const pageHtml = `
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<!doctype html>
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<html lang="en">
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>Page not found - Matrix Public Archive</title>
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<link href="${hydrogenStylesUrl}" rel="stylesheet" nonce="${cspNonce}">
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<link href="${stylesUrl}" rel="stylesheet" nonce="${cspNonce}">
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</head>
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${/* We add the .hydrogen class here just to get normal body styles */ ''}
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<body class="hydrogen">
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<h1>
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404: Page not found.
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<span class="js-try-redirect-message" style="display: none">One sec while we try to redirect you to the right place.</span>
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</h1>
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<p>If there was a #room_alias:server hash in the URL, we tried redirecting you to the right place.</p>
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<p>
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Otherwise, you're simply in a place that does not exist.
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You can ${sanitizeHtml(`<a href="${basePath}">go back to the homepage</a>.`)}
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</p>
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<script type="text/javascript" nonce="${cspNonce}">
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window.matrixPublicArchiveContext = ${safeJson(serializedContext)}
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</script>
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<script type="text/javascript" src="${jsBundleUrl}" nonce="${cspNonce}"></script>
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</body>
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</html>
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`;
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res.status(404);
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res.set('Content-Type', 'text/html');
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res.send(pageHtml);
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}
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module.exports = clientSideRoomAliasHashRedirectRoute;
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