1 import * as express from 'express'
2 import { join } from 'path'
3 import * as validator from 'validator'
4 import * as Promise from 'bluebird'
6 import { database as db } from '../initializers/database'
13 } from '../initializers'
14 import { root, readFileBufferPromise } from '../helpers'
15 import { VideoInstance } from '../models'
17 const clientsRouter = express.Router()
19 const distPath = join(root(), 'client', 'dist')
20 const embedPath = join(distPath, 'standalone', 'videos', 'embed.html')
21 const indexPath = join(distPath, 'index.html')
23 // Special route that add OpenGraph tags
24 // Do not use a template engine for a so little thing
25 clientsRouter.use('/videos/watch/:id', generateWatchHtmlPage)
27 clientsRouter.use('/videos/embed', function (req: express.Request, res: express.Response, next: express.NextFunction) {
28 res.sendFile(embedPath)
31 // Static HTML/CSS/JS client files
32 clientsRouter.use('/client', express.static(distPath, { maxAge: STATIC_MAX_AGE }))
34 // 404 for static files not found
35 clientsRouter.use('/client/*', function (req: express.Request, res: express.Response, next: express.NextFunction) {
39 // ---------------------------------------------------------------------------
45 // ---------------------------------------------------------------------------
47 function addOpenGraphTags (htmlStringPage: string, video: VideoInstance) {
48 let basePreviewUrlHttp
50 if (video.isOwned()) {
51 basePreviewUrlHttp = CONFIG.WEBSERVER.URL
53 basePreviewUrlHttp = REMOTE_SCHEME.HTTP + '://' + video.Author.Pod.host
56 // We fetch the remote preview (bigger than the thumbnail)
57 // This should not overhead the remote server since social websites put in a cache the OpenGraph tags
58 // We can't use the thumbnail because these social websites want bigger images (> 200x200 for Facebook for example)
59 const previewUrl = basePreviewUrlHttp + STATIC_PATHS.PREVIEWS + video.getPreviewName()
60 const videoUrl = CONFIG.WEBSERVER.URL + '/videos/watch/' + video.id
64 'og:title': video.name,
65 'og:image': previewUrl,
67 'og:description': video.description,
70 'description': video.description,
73 'twitter:card': 'summary_large_image',
74 'twitter:site': '@Chocobozzz',
75 'twitter:title': video.name,
76 'twitter:description': video.description,
77 'twitter:image': previewUrl
81 Object.keys(metaTags).forEach(function (tagName) {
82 const tagValue = metaTags[tagName]
84 tagsString += '<meta property="' + tagName + '" content="' + tagValue + '" />'
87 return htmlStringPage.replace(OPENGRAPH_COMMENT, tagsString)
90 function generateWatchHtmlPage (req: express.Request, res: express.Response, next: express.NextFunction) {
91 const videoId = '' + req.params.id
93 // Let Angular application handle errors
94 if (!validator.isUUID(videoId, 4)) return res.sendFile(indexPath)
97 readFileBufferPromise(indexPath),
98 db.Video.loadAndPopulateAuthorAndPodAndTags(videoId)
100 .then(([ file, video ]) => {
101 file = file as Buffer
102 video = video as VideoInstance
104 const html = file.toString()
106 // Let Angular application handle errors
107 if (!video) return res.sendFile(indexPath)
109 const htmlStringPageWithTags = addOpenGraphTags(html, video)
110 res.set('Content-Type', 'text/html; charset=UTF-8').send(htmlStringPageWithTags)
112 .catch(err => next(err))