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import express from 'express'
import { constants, promises as fs } from 'fs'
import { readFile } from 'fs-extra'
import { join } from 'path'
import { logger } from '@server/helpers/logger'
import { CONFIG } from '@server/initializers/config'
import { Hooks } from '@server/lib/plugins/hooks'
import { buildFileLocale, getCompleteLocale, is18nLocale, LOCALE_FILES } from '@shared/core-utils/i18n'
import { HttpStatusCode } from '@shared/models'
import { root } from '@shared/core-utils'
import { STATIC_MAX_AGE } from '../initializers/constants'
import { ClientHtml, sendHTML, serveIndexHTML } 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([ '/w/p/:id', '/videos/watch/playlist/:id' ], asyncMiddleware(generateWatchPlaylistHtmlPage))
clientsRouter.use([ '/w/:id', '/videos/watch/:id' ], asyncMiddleware(generateWatchHtmlPage))
clientsRouter.use([ '/accounts/:nameWithHost', '/a/:nameWithHost' ], asyncMiddleware(generateAccountHtmlPage))
clientsRouter.use([ '/video-channels/:nameWithHost', '/c/:nameWithHost' ], asyncMiddleware(generateVideoChannelHtmlPage))
clientsRouter.use('/@:nameWithHost', asyncMiddleware(generateActorHtmlPage))
const embedMiddlewares = [
CONFIG.CSP.ENABLED
? embedCSP
: (req: express.Request, res: express.Response, next: express.NextFunction) => next(),
// Set headers
(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)
// Dynamic PWA manifest
clientsRouter.get('/manifest.webmanifest', asyncMiddleware(generateManifest))
// Static client overrides
// Must be consistent with static client overrides redirections in /support/nginx/peertube
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',
'assets/images/default-playlist.jpg',
'assets/images/default-avatar-account.png',
'assets/images/default-avatar-account-48x48.png',
'assets/images/default-avatar-video-channel.png',
'assets/images/default-avatar-video-channel-48x48.png'
]
for (const staticClientOverride of staticClientOverrides) {
const overridePhysicalPath = join(CONFIG.STORAGE.CLIENT_OVERRIDES_DIR, staticClientOverride)
clientsRouter.use(`/client/${staticClientOverride}`, asyncMiddleware(serveClientOverride(overridePhysicalPath)))
}
clientsRouter.use('/client/locales/:locale/:file.json', serveServerTranslations)
clientsRouter.use('/client', express.static(distPath, { maxAge: STATIC_MAX_AGE.CLIENT }))
// 404 for static files not found
clientsRouter.use('/client/*', (req: express.Request, res: express.Response) => {
res.status(HttpStatusCode.NOT_FOUND_404).end()
})
// Always serve index client page (the client is a single page application, let it handle routing)
// Try to provide the right language index.html
clientsRouter.use('/(:language)?', asyncMiddleware(serveIndexHTML))
// ---------------------------------------------------------------------------
export {
clientsRouter
}
// ---------------------------------------------------------------------------
function serveServerTranslations (req: express.Request, res: express.Response) {
const locale = req.params.locale
const file = req.params.file
if (is18nLocale(locale) && LOCALE_FILES.includes(file)) {
const completeLocale = getCompleteLocale(locale)
const completeFileLocale = buildFileLocale(completeLocale)
const path = join(__dirname, `../../../client/dist/locale/${file}.${completeFileLocale}.json`)
return res.sendFile(path, { maxAge: STATIC_MAX_AGE.SERVER })
}
return res.status(HttpStatusCode.NOT_FOUND_404).end()
}
async function generateEmbedHtmlPage (req: express.Request, res: express.Response) {
const hookName = req.originalUrl.startsWith('/video-playlists/')
? 'filter:html.embed.video-playlist.allowed.result'
: 'filter:html.embed.video.allowed.result'
const allowParameters = { req }
const allowedResult = await Hooks.wrapFun(
isEmbedAllowed,
allowParameters,
hookName
)
if (!allowedResult || allowedResult.allowed !== true) {
logger.info('Embed is not allowed.', { allowedResult })
return sendHTML(allowedResult?.html || '', res)
}
const html = await ClientHtml.getEmbedHTML()
return sendHTML(html, res)
}
async function generateWatchHtmlPage (req: express.Request, res: express.Response) {
// Thread link is '/w/:videoId;threadId=:threadId'
// So to get the videoId we need to remove the last part
let videoId = req.params.id + ''
const threadIdIndex = videoId.indexOf(';threadId')
if (threadIdIndex !== -1) videoId = videoId.substring(0, threadIdIndex)
const html = await ClientHtml.getWatchHTMLPage(videoId, req, res)
return sendHTML(html, res, true)
}
async function generateWatchPlaylistHtmlPage (req: express.Request, res: express.Response) {
const html = await ClientHtml.getWatchPlaylistHTMLPage(req.params.id + '', req, res)
return sendHTML(html, res, true)
}
async function generateAccountHtmlPage (req: express.Request, res: express.Response) {
const html = await ClientHtml.getAccountHTMLPage(req.params.nameWithHost, req, res)
return sendHTML(html, res, true)
}
async function generateVideoChannelHtmlPage (req: express.Request, res: express.Response) {
const html = await ClientHtml.getVideoChannelHTMLPage(req.params.nameWithHost, req, res)
return sendHTML(html, res, true)
}
async function generateActorHtmlPage (req: express.Request, res: express.Response) {
const html = await ClientHtml.getActorHTMLPage(req.params.nameWithHost, req, res)
return sendHTML(html, res, true)
}
async function generateManifest (req: express.Request, res: express.Response) {
const manifestPhysicalPath = join(root(), 'client', 'dist', 'manifest.webmanifest')
const manifestJson = await 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()
}
}
}
type AllowedResult = { allowed: boolean, html?: string }
function isEmbedAllowed (_object: {
req: express.Request
}): AllowedResult {
return { allowed: true }
}
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