server/controllers/services.ts

   1 import * as express from 'express'
   2
   3 import { CONFIG, EMBED_SIZE, PREVIEWS_SIZE } from '../initializers'
   4 import { oembedValidator } from '../middlewares'
   5 import { asyncMiddleware } from '../middlewares/async'
   6 import { VideoInstance } from '../models'
   7
   8 const servicesRouter = express.Router()
   9
  10 servicesRouter.use('/oembed',
  11   asyncMiddleware(oembedValidator),
  12   generateOEmbed
  13 )
  14
  15 // ---------------------------------------------------------------------------
  16
  17 export {
  18   servicesRouter
  19 }
  20
  21 // ---------------------------------------------------------------------------
  22
  23 function generateOEmbed (req: express.Request, res: express.Response, next: express.NextFunction) {
  24   const video = res.locals.video as VideoInstance
  25   const webserverUrl = CONFIG.WEBSERVER.URL
  26   const maxHeight = parseInt(req.query.maxheight, 10)
  27   const maxWidth = parseInt(req.query.maxwidth, 10)
  28
  29   const embedUrl = webserverUrl + video.getEmbedPath()
  30   let thumbnailUrl = webserverUrl + video.getPreviewPath()
  31   let embedWidth = EMBED_SIZE.width
  32   let embedHeight = EMBED_SIZE.height
  33
  34   if (maxHeight < embedHeight) embedHeight = maxHeight
  35   if (maxWidth < embedWidth) embedWidth = maxWidth
  36
  37   // Our thumbnail is too big for the consumer
  38   if (
  39     (maxHeight !== undefined && maxHeight < PREVIEWS_SIZE.height) ||
  40     (maxWidth !== undefined && maxWidth < PREVIEWS_SIZE.width)
  41   ) {
  42     thumbnailUrl = undefined
  43   }
  44
  45   const html = `<iframe width="${embedWidth}" height="${embedHeight}" src="${embedUrl}" frameborder="0" allowfullscreen></iframe>`
  46
  47   const json: any = {
  48     type: 'video',
  49     version: '1.0',
  50     html,
  51     width: embedWidth,
  52     height: embedHeight,
  53     title: video.name,
  54     author_name: video.VideoChannel.Account.name,
  55     provider_name: 'PeerTube',
  56     provider_url: webserverUrl
  57   }
  58
  59   if (thumbnailUrl !== undefined) {
  60     json.thumbnail_url = thumbnailUrl
  61     json.thumbnail_width = PREVIEWS_SIZE.width
  62     json.thumbnail_height = PREVIEWS_SIZE.height
  63   }
  64
  65   return res.json(json)
  66 }