import * as express from 'express' import { join } from 'path' import { root } from '../helpers/core-utils' import { ACCEPT_HEADERS, STATIC_MAX_AGE } from '../initializers/constants' import { asyncMiddleware, embedCSP } from '../middlewares' import { buildFileLocale, getCompleteLocale, is18nLocale, LOCALE_FILES } from '../../shared/models/i18n/i18n' import { ClientHtml } from '../lib/client-html' import { logger } from '../helpers/logger' import { CONFIG } from '@server/initializers/config' const clientsRouter = express.Router() const distPath = join(root(), 'client', 'dist') const embedPath = join(distPath, 'standalone', 'videos', 'embed.html') const testEmbedPath = join(distPath, 'standalone', 'videos', 'test-embed.html') // Special route that add OpenGraph and oEmbed tags // Do not use a template engine for a so little thing clientsRouter.use('/videos/watch/:id', asyncMiddleware(generateWatchHtmlPage)) clientsRouter.use('/accounts/:nameWithHost', asyncMiddleware(generateAccountHtmlPage)) clientsRouter.use('/video-channels/:nameWithHost', asyncMiddleware(generateVideoChannelHtmlPage)) const embedCSPMiddleware = CONFIG.CSP.ENABLED ? embedCSP : (req: express.Request, res: express.Response, next: express.NextFunction) => next() clientsRouter.use( '/videos/embed', embedCSPMiddleware, (req: express.Request, res: express.Response) => { res.removeHeader('X-Frame-Options') // Don't cache HTML file since it's an index to the immutable JS/CSS files res.sendFile(embedPath, { maxAge: 0 }) } ) clientsRouter.use( '/videos/test-embed', (req: express.Request, res: express.Response) => res.sendFile(testEmbedPath) ) // Static HTML/CSS/JS client files const staticClientFiles = [ 'manifest.webmanifest', 'ngsw-worker.js', 'ngsw.json' ] for (const staticClientFile of staticClientFiles) { const path = join(root(), 'client', 'dist', staticClientFile) clientsRouter.get('/' + staticClientFile, (req: express.Request, res: express.Response) => { res.sendFile(path, { maxAge: STATIC_MAX_AGE.SERVER }) }) } clientsRouter.use('/client/locales/:locale/:file.json', serveServerTranslations) clientsRouter.use('/client', express.static(distPath, { maxAge: STATIC_MAX_AGE.CLIENT })) // 404 for static files not found clientsRouter.use('/client/*', (req: express.Request, res: express.Response) => { res.sendStatus(404) }) // Always serve index client page (the client is a single page application, let it handle routing) // Try to provide the right language index.html clientsRouter.use('/(:language)?', asyncMiddleware(serveIndexHTML)) // --------------------------------------------------------------------------- export { clientsRouter } // --------------------------------------------------------------------------- function serveServerTranslations (req: express.Request, res: express.Response) { const locale = req.params.locale const file = req.params.file if (is18nLocale(locale) && LOCALE_FILES.includes(file)) { const completeLocale = getCompleteLocale(locale) const completeFileLocale = buildFileLocale(completeLocale) const path = join(__dirname, `../../../client/dist/locale/${file}.${completeFileLocale}.json`) return res.sendFile(path, { maxAge: STATIC_MAX_AGE.SERVER }) } return res.sendStatus(404) } async function serveIndexHTML (req: express.Request, res: express.Response) { if (req.accepts(ACCEPT_HEADERS) === 'html') { try { await generateHTMLPage(req, res, req.params.language) return } catch (err) { logger.error('Cannot generate HTML page.', err) } } return res.status(404).end() } async function generateHTMLPage (req: express.Request, res: express.Response, paramLang?: string) { const html = await ClientHtml.getDefaultHTMLPage(req, res, paramLang) return sendHTML(html, res) } async function generateWatchHtmlPage (req: express.Request, res: express.Response) { const html = await ClientHtml.getWatchHTMLPage(req.params.id + '', req, res) return sendHTML(html, res) } async function generateAccountHtmlPage (req: express.Request, res: express.Response) { const html = await ClientHtml.getAccountHTMLPage(req.params.nameWithHost, req, res) return sendHTML(html, res) } async function generateVideoChannelHtmlPage (req: express.Request, res: express.Response) { const html = await ClientHtml.getVideoChannelHTMLPage(req.params.nameWithHost, req, res) return sendHTML(html, res) } function sendHTML (html: string, res: express.Response) { res.set('Content-Type', 'text/html; charset=UTF-8') return res.send(html) }