server/controllers/services.ts

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