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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')
res.sendFile(embedPath)
}
)
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)
}
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