118 lines
3.7 KiB
TypeScript
118 lines
3.7 KiB
TypeScript
import { parallel } from 'async'
|
|
import * as express from 'express'
|
|
import * as fs from 'fs'
|
|
import { join } from 'path'
|
|
import * as validator from 'validator'
|
|
|
|
import { database as db } from '../initializers/database'
|
|
import {
|
|
CONFIG,
|
|
REMOTE_SCHEME,
|
|
STATIC_PATHS,
|
|
STATIC_MAX_AGE
|
|
} from '../initializers'
|
|
import { root } from '../helpers'
|
|
import { VideoInstance } from '../models'
|
|
|
|
const clientsRouter = express.Router()
|
|
|
|
// TODO: move to constants
|
|
const opengraphComment = '<!-- opengraph tags -->'
|
|
const distPath = join(root(), 'client', 'dist')
|
|
const embedPath = join(distPath, 'standalone', 'videos', 'embed.html')
|
|
const indexPath = join(distPath, 'index.html')
|
|
|
|
// Special route that add OpenGraph tags
|
|
// Do not use a template engine for a so little thing
|
|
clientsRouter.use('/videos/watch/:id', generateWatchHtmlPage)
|
|
|
|
clientsRouter.use('/videos/embed', function (req: express.Request, res: express.Response, next: express.NextFunction) {
|
|
res.sendFile(embedPath)
|
|
})
|
|
|
|
// Static HTML/CSS/JS client files
|
|
clientsRouter.use('/client', express.static(distPath, { maxAge: STATIC_MAX_AGE }))
|
|
|
|
// 404 for static files not found
|
|
clientsRouter.use('/client/*', function (req: express.Request, res: express.Response, next: express.NextFunction) {
|
|
res.sendStatus(404)
|
|
})
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
export {
|
|
clientsRouter
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
function addOpenGraphTags (htmlStringPage: string, video: VideoInstance) {
|
|
let basePreviewUrlHttp
|
|
|
|
if (video.isOwned()) {
|
|
basePreviewUrlHttp = CONFIG.WEBSERVER.URL
|
|
} else {
|
|
basePreviewUrlHttp = REMOTE_SCHEME.HTTP + '://' + video.Author.Pod.host
|
|
}
|
|
|
|
// We fetch the remote preview (bigger than the thumbnail)
|
|
// This should not overhead the remote server since social websites put in a cache the OpenGraph tags
|
|
// We can't use the thumbnail because these social websites want bigger images (> 200x200 for Facebook for example)
|
|
const previewUrl = basePreviewUrlHttp + STATIC_PATHS.PREVIEWS + video.getPreviewName()
|
|
const videoUrl = CONFIG.WEBSERVER.URL + '/videos/watch/' + video.id
|
|
|
|
const metaTags = {
|
|
'og:type': 'video',
|
|
'og:title': video.name,
|
|
'og:image': previewUrl,
|
|
'og:url': videoUrl,
|
|
'og:description': video.description,
|
|
|
|
'name': video.name,
|
|
'description': video.description,
|
|
'image': previewUrl,
|
|
|
|
'twitter:card': 'summary_large_image',
|
|
'twitter:site': '@Chocobozzz',
|
|
'twitter:title': video.name,
|
|
'twitter:description': video.description,
|
|
'twitter:image': previewUrl
|
|
}
|
|
|
|
let tagsString = ''
|
|
Object.keys(metaTags).forEach(function (tagName) {
|
|
const tagValue = metaTags[tagName]
|
|
|
|
tagsString += '<meta property="' + tagName + '" content="' + tagValue + '" />'
|
|
})
|
|
|
|
return htmlStringPage.replace(opengraphComment, tagsString)
|
|
}
|
|
|
|
function generateWatchHtmlPage (req: express.Request, res: express.Response, next: express.NextFunction) {
|
|
const videoId = '' + req.params.id
|
|
|
|
// Let Angular application handle errors
|
|
if (!validator.isUUID(videoId, 4)) return res.sendFile(indexPath)
|
|
|
|
parallel({
|
|
file: function (callback) {
|
|
fs.readFile(indexPath, callback)
|
|
},
|
|
|
|
video: function (callback) {
|
|
db.Video.loadAndPopulateAuthorAndPodAndTags(videoId, callback)
|
|
}
|
|
}, function (err: Error, result: { file: Buffer, video: VideoInstance }) {
|
|
if (err) return next(err)
|
|
|
|
const html = result.file.toString()
|
|
const video = result.video
|
|
|
|
// Let Angular application handle errors
|
|
if (!video) return res.sendFile(indexPath)
|
|
|
|
const htmlStringPageWithTags = addOpenGraphTags(html, video)
|
|
res.set('Content-Type', 'text/html; charset=UTF-8').send(htmlStringPageWithTags)
|
|
})
|
|
}
|