server/controllers/services.ts

   1 import * as express from 'express'
   2
   3 import { CONFIG, PREVIEWS_SIZE, EMBED_SIZE } from '../initializers'
   4 import { oembedValidator } from '../middlewares'
   5 import { VideoInstance } from '../models'
   6
   7 const servicesRouter = express.Router()
   8
   9 servicesRouter.use('/oembed', oembedValidator, generateOEmbed)
  10
  11 // ---------------------------------------------------------------------------
  12
  13 export {
  14   servicesRouter
  15 }
  16
  17 // ---------------------------------------------------------------------------
  18
  19 function generateOEmbed (req: express.Request, res: express.Response, next: express.NextFunction) {
  20   const video = res.locals.video as VideoInstance
  21   const webserverUrl = CONFIG.WEBSERVER.URL
  22   const maxHeight = parseInt(req.query.maxheight, 10)
  23   const maxWidth = parseInt(req.query.maxwidth, 10)
  24
  25   const embedUrl = webserverUrl + video.getEmbedPath()
  26   let thumbnailUrl = webserverUrl + video.getPreviewPath()
  27   let embedWidth = EMBED_SIZE.width
  28   let embedHeight = EMBED_SIZE.height
  29
  30   if (maxHeight < embedHeight) embedHeight = maxHeight
  31   if (maxWidth < embedWidth) embedWidth = maxWidth
  32
  33   // Our thumbnail is too big for the consumer
  34   if (
  35     (maxHeight !== undefined && maxHeight < PREVIEWS_SIZE.height) ||
  36     (maxWidth !== undefined && maxWidth < PREVIEWS_SIZE.width)
  37   ) {
  38     thumbnailUrl = undefined
  39   }
  40
  41   const html = `<iframe width="${embedWidth}" height="${embedHeight}" src="${embedUrl}" frameborder="0" allowfullscreen></iframe>`
  42
  43   const json: any = {
  44     type: 'video',
  45     version: '1.0',
  46     html,
  47     width: embedWidth,
  48     height: embedHeight,
  49     title: video.name,
  50     author_name: video.VideoChannel.Account.name,
  51     provider_name: 'PeerTube',
  52     provider_url: webserverUrl
  53   }
  54
  55   if (thumbnailUrl !== undefined) {
  56     json.thumbnail_url = thumbnailUrl
  57     json.thumbnail_width = PREVIEWS_SIZE.width
  58     json.thumbnail_height = PREVIEWS_SIZE.height
  59   }
  60
  61   return res.json(json)
  62 }