server/controllers/services.ts

   1 import * as express from 'express'
   2 import { EMBED_SIZE, PREVIEWS_SIZE, WEBSERVER, THUMBNAILS_SIZE } from '../initializers/constants'
   3 import { asyncMiddleware, oembedValidator } from '../middlewares'
   4 import { accountNameWithHostGetValidator } from '../middlewares/validators'
   5 import { MChannelSummary } from '@server/types/models'
   6
   7 const servicesRouter = express.Router()
   8
   9 servicesRouter.use('/oembed',
  10   asyncMiddleware(oembedValidator),
  11   generateOEmbed
  12 )
  13 servicesRouter.use('/redirect/accounts/:accountName',
  14   asyncMiddleware(accountNameWithHostGetValidator),
  15   redirectToAccountUrl
  16 )
  17
  18 // ---------------------------------------------------------------------------
  19
  20 export {
  21   servicesRouter
  22 }
  23
  24 // ---------------------------------------------------------------------------
  25
  26 function generateOEmbed (req: express.Request, res: express.Response) {
  27   if (res.locals.videoAll) return generateVideoOEmbed(req, res)
  28
  29   return generatePlaylistOEmbed(req, res)
  30 }
  31
  32 function generatePlaylistOEmbed (req: express.Request, res: express.Response) {
  33   const playlist = res.locals.videoPlaylistSummary
  34
  35   const json = buildOEmbed({
  36     channel: playlist.VideoChannel,
  37     title: playlist.name,
  38     embedPath: playlist.getEmbedStaticPath(),
  39     previewPath: playlist.getThumbnailStaticPath(),
  40     previewSize: THUMBNAILS_SIZE,
  41     req
  42   })
  43
  44   return res.json(json)
  45 }
  46
  47 function generateVideoOEmbed (req: express.Request, res: express.Response) {
  48   const video = res.locals.videoAll
  49
  50   const json = buildOEmbed({
  51     channel: video.VideoChannel,
  52     title: video.name,
  53     embedPath: video.getEmbedStaticPath(),
  54     previewPath: video.getPreviewStaticPath(),
  55     previewSize: PREVIEWS_SIZE,
  56     req
  57   })
  58
  59   return res.json(json)
  60 }
  61
  62 function buildOEmbed (options: {
  63   req: express.Request
  64   title: string
  65   channel: MChannelSummary
  66   previewPath: string | null
  67   embedPath: string
  68   previewSize: {
  69     height: number
  70     width: number
  71   }
  72 }) {
  73   const { req, previewSize, previewPath, title, channel, embedPath } = options
  74
  75   const webserverUrl = WEBSERVER.URL
  76   const maxHeight = parseInt(req.query.maxheight, 10)
  77   const maxWidth = parseInt(req.query.maxwidth, 10)
  78
  79   const embedUrl = webserverUrl + embedPath
  80   let embedWidth = EMBED_SIZE.width
  81   let embedHeight = EMBED_SIZE.height
  82
  83   let thumbnailUrl = previewPath
  84     ? webserverUrl + previewPath
  85     : undefined
  86
  87   if (maxHeight < embedHeight) embedHeight = maxHeight
  88   if (maxWidth < embedWidth) embedWidth = maxWidth
  89
  90   // Our thumbnail is too big for the consumer
  91   if (
  92     (maxHeight !== undefined && maxHeight < previewSize.height) ||
  93     (maxWidth !== undefined && maxWidth < previewSize.width)
  94   ) {
  95     thumbnailUrl = undefined
  96   }
  97
  98   const html = `<iframe width="${embedWidth}" height="${embedHeight}" sandbox="allow-same-origin allow-scripts" ` +
  99     `src="${embedUrl}" frameborder="0" allowfullscreen></iframe>`
 100
 101   const json: any = {
 102     type: 'video',
 103     version: '1.0',
 104     html,
 105     width: embedWidth,
 106     height: embedHeight,
 107     title: title,
 108     author_name: channel.name,
 109     author_url: channel.Actor.url,
 110     provider_name: 'PeerTube',
 111     provider_url: webserverUrl
 112   }
 113
 114   if (thumbnailUrl !== undefined) {
 115     json.thumbnail_url = thumbnailUrl
 116     json.thumbnail_width = previewSize.width
 117     json.thumbnail_height = previewSize.height
 118   }
 119
 120   return json
 121 }
 122
 123 function redirectToAccountUrl (req: express.Request, res: express.Response, next: express.NextFunction) {
 124   return res.redirect(res.locals.account.Actor.url)
 125 }