server/controllers/client.ts

   1 import * as express from 'express'
   2 import { join } from 'path'
   3 import { root } from '../helpers/core-utils'
   4 import { ACCEPT_HEADERS, STATIC_MAX_AGE } from '../initializers'
   5 import { asyncMiddleware } from '../middlewares'
   6 import { buildFileLocale, getCompleteLocale, is18nLocale, LOCALE_FILES } from '../../shared/models/i18n/i18n'
   7 import { ClientHtml } from '../lib/client-html'
   8
   9 const clientsRouter = express.Router()
  10
  11 const distPath = join(root(), 'client', 'dist')
  12 const assetsImagesPath = join(root(), 'client', 'dist', 'assets', 'images')
  13 const embedPath = join(distPath, 'standalone', 'videos', 'embed.html')
  14 const testEmbedPath = join(distPath, 'standalone', 'videos', 'test-embed.html')
  15
  16 // Special route that add OpenGraph and oEmbed tags
  17 // Do not use a template engine for a so little thing
  18 clientsRouter.use('/videos/watch/:id',
  19   asyncMiddleware(generateWatchHtmlPage)
  20 )
  21
  22 clientsRouter.use('' +
  23   '/videos/embed',
  24   (req: express.Request, res: express.Response, next: express.NextFunction) => {
  25     res.removeHeader('X-Frame-Options')
  26     res.sendFile(embedPath)
  27   }
  28 )
  29 clientsRouter.use('' +
  30   '/videos/test-embed', (req: express.Request, res: express.Response, next: express.NextFunction) => {
  31   res.sendFile(testEmbedPath)
  32 })
  33
  34 // Static HTML/CSS/JS client files
  35
  36 const staticClientFiles = [
  37   'manifest.json',
  38   'ngsw-worker.js',
  39   'ngsw.json'
  40 ]
  41 for (const staticClientFile of staticClientFiles) {
  42   const path = join(root(), 'client', 'dist', staticClientFile)
  43   clientsRouter.use('/' + staticClientFile, express.static(path, { maxAge: STATIC_MAX_AGE }))
  44 }
  45
  46 clientsRouter.use('/client', express.static(distPath, { maxAge: STATIC_MAX_AGE }))
  47 clientsRouter.use('/client/assets/images', express.static(assetsImagesPath, { maxAge: STATIC_MAX_AGE }))
  48
  49 clientsRouter.use('/client/locales/:locale/:file.json', function (req, res) {
  50   const locale = req.params.locale
  51   const file = req.params.file
  52
  53   if (is18nLocale(locale) && LOCALE_FILES.indexOf(file) !== -1) {
  54     const completeLocale = getCompleteLocale(locale)
  55     const completeFileLocale = buildFileLocale(completeLocale)
  56     return res.sendFile(join(__dirname, `../../../client/dist/locale/${file}_${completeFileLocale}.json`))
  57   }
  58
  59   return res.sendStatus(404)
  60 })
  61
  62 // 404 for static files not found
  63 clientsRouter.use('/client/*', (req: express.Request, res: express.Response, next: express.NextFunction) => {
  64   res.sendStatus(404)
  65 })
  66
  67 // Always serve index client page (the client is a single page application, let it handle routing)
  68 // Try to provide the right language index.html
  69 clientsRouter.use('/(:language)?', function (req, res) {
  70   if (req.accepts(ACCEPT_HEADERS) === 'html') {
  71     return generateHTMLPage(req, res, req.params.language)
  72   }
  73
  74   return res.status(404).end()
  75 })
  76
  77 // ---------------------------------------------------------------------------
  78
  79 export {
  80   clientsRouter
  81 }
  82
  83 // ---------------------------------------------------------------------------
  84
  85 async function generateHTMLPage (req: express.Request, res: express.Response, paramLang?: string) {
  86   const html = await ClientHtml.getIndexHTML(req, res)
  87
  88   return sendHTML(html, res)
  89 }
  90
  91 async function generateWatchHtmlPage (req: express.Request, res: express.Response) {
  92   const html = await ClientHtml.getWatchHTMLPage(req.params.id + '', req, res)
  93
  94   return sendHTML(html, res)
  95 }
  96
  97 function sendHTML (html: string, res: express.Response) {
  98   res.set('Content-Type', 'text/html; charset=UTF-8')
  99
 100   return res.send(html)
 101 }