import * as express from 'express' import { constants, promises as fs } from 'fs' import { join } from 'path' import { CONFIG } from '@server/initializers/config' import { buildFileLocale, getCompleteLocale, is18nLocale, LOCALE_FILES } from '@shared/core-utils/i18n' import { root } from '../helpers/core-utils' import { logger } from '../helpers/logger' import { ACCEPT_HEADERS, STATIC_MAX_AGE } from '../initializers/constants' import { ClientHtml } from '../lib/client-html' import { asyncMiddleware, embedCSP } from '../middlewares' const clientsRouter = express.Router() const distPath = join(root(), 'client', 'dist') 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/playlist/:id', asyncMiddleware(generateWatchPlaylistHtmlPage)) clientsRouter.use('/videos/watch/:id', asyncMiddleware(generateWatchHtmlPage)) clientsRouter.use('/accounts/:nameWithHost', asyncMiddleware(generateAccountHtmlPage)) clientsRouter.use('/video-channels/:nameWithHost', asyncMiddleware(generateVideoChannelHtmlPage)) const embedMiddlewares = [ CONFIG.CSP.ENABLED ? embedCSP : (req: express.Request, res: express.Response, next: express.NextFunction) => next(), (req: express.Request, res: express.Response, next: express.NextFunction) => { res.removeHeader('X-Frame-Options') // Don't cache HTML file since it's an index to the immutable JS/CSS files res.setHeader('Cache-Control', 'public, max-age=0') next() }, asyncMiddleware(generateEmbedHtmlPage) ] clientsRouter.use('/videos/embed', ...embedMiddlewares) clientsRouter.use('/video-playlists/embed', ...embedMiddlewares) const testEmbedController = (req: express.Request, res: express.Response) => res.sendFile(testEmbedPath) clientsRouter.use('/videos/test-embed', testEmbedController) clientsRouter.use('/video-playlists/test-embed', testEmbedController) // Static HTML/CSS/JS client files const staticClientFiles = [ 'ngsw-worker.js', 'ngsw.json' ] for (const staticClientFile of staticClientFiles) { const path = join(root(), 'client', 'dist', staticClientFile) clientsRouter.get(`/${staticClientFile}`, (req: express.Request, res: express.Response) => { res.sendFile(path, { maxAge: STATIC_MAX_AGE.SERVER }) }) } // Dynamic PWA manifest clientsRouter.get('/manifest.webmanifest', asyncMiddleware(generateManifest)) // Static client overrides const staticClientOverrides = [ 'assets/images/logo.svg', 'assets/images/favicon.png', 'assets/images/icons/icon-36x36.png', 'assets/images/icons/icon-48x48.png', 'assets/images/icons/icon-72x72.png', 'assets/images/icons/icon-96x96.png', 'assets/images/icons/icon-144x144.png', 'assets/images/icons/icon-192x192.png', 'assets/images/icons/icon-512x512.png' ] for (const staticClientOverride of staticClientOverrides) { const overridePhysicalPath = join(CONFIG.STORAGE.CLIENT_OVERRIDES_DIR, staticClientOverride) clientsRouter.use(`/client/${staticClientOverride}`, asyncMiddleware(serveClientOverride(overridePhysicalPath))) } 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 generateEmbedHtmlPage (req: express.Request, res: express.Response) { const html = await ClientHtml.getEmbedHTML() return sendHTML(html, res) } 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 generateWatchPlaylistHtmlPage (req: express.Request, res: express.Response) { const html = await ClientHtml.getWatchPlaylistHTMLPage(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) } async function generateManifest (req: express.Request, res: express.Response) { const manifestPhysicalPath = join(root(), 'client', 'dist', 'manifest.webmanifest') const manifestJson = await fs.readFile(manifestPhysicalPath, 'utf8') const manifest = JSON.parse(manifestJson) manifest.name = CONFIG.INSTANCE.NAME manifest.short_name = CONFIG.INSTANCE.NAME manifest.description = CONFIG.INSTANCE.SHORT_DESCRIPTION res.json(manifest) } function serveClientOverride (path: string) { return async (req: express.Request, res: express.Response, next: express.NextFunction) => { try { await fs.access(path, constants.F_OK) // Serve override client res.sendFile(path, { maxAge: STATIC_MAX_AGE.SERVER }) } catch { // Serve dist client next() } } }