server/helpers/custom-validators/activitypub/videos.ts

   1 import * as validator from 'validator'
   2 import { ACTIVITY_PUB } from '../../../initializers'
   3 import { exists, isDateValid, isUUIDValid } from '../misc'
   4 import {
   5   isVideoAbuseReasonValid,
   6   isVideoDurationValid,
   7   isVideoNameValid,
   8   isVideoNSFWValid,
   9   isVideoTagValid,
  10   isVideoTruncatedDescriptionValid,
  11   isVideoViewsValid
  12 } from '../videos'
  13 import { isActivityPubUrlValid, isBaseActivityValid, setValidAttributedTo } from './misc'
  14
  15 function isVideoTorrentCreateActivityValid (activity: any) {
  16   return isBaseActivityValid(activity, 'Create') &&
  17     isVideoTorrentObjectValid(activity.object)
  18 }
  19
  20 function isVideoTorrentUpdateActivityValid (activity: any) {
  21   return isBaseActivityValid(activity, 'Update') &&
  22     isVideoTorrentObjectValid(activity.object)
  23 }
  24
  25 function isVideoTorrentDeleteActivityValid (activity: any) {
  26   return isBaseActivityValid(activity, 'Delete')
  27 }
  28
  29 function isVideoFlagValid (activity: any) {
  30   return isBaseActivityValid(activity, 'Create') &&
  31     activity.object.type === 'Flag' &&
  32     isVideoAbuseReasonValid(activity.object.content) &&
  33     isActivityPubUrlValid(activity.object.object)
  34 }
  35
  36 function isActivityPubVideoDurationValid (value: string) {
  37   // https://www.w3.org/TR/activitystreams-vocabulary/#dfn-duration
  38   return exists(value) &&
  39     typeof value === 'string' &&
  40     value.startsWith('PT') &&
  41     value.endsWith('S') &&
  42     isVideoDurationValid(value.replace(/[^0-9]+/g, ''))
  43 }
  44
  45 function isVideoTorrentObjectValid (video: any) {
  46   return video.type === 'Video' &&
  47     isActivityPubUrlValid(video.id) &&
  48     isVideoNameValid(video.name) &&
  49     isActivityPubVideoDurationValid(video.duration) &&
  50     isUUIDValid(video.uuid) &&
  51     setValidRemoteTags(video) &&
  52     (!video.category || isRemoteIdentifierValid(video.category)) &&
  53     (!video.licence || isRemoteIdentifierValid(video.licence)) &&
  54     (!video.language || isRemoteIdentifierValid(video.language)) &&
  55     isVideoViewsValid(video.views) &&
  56     isVideoNSFWValid(video.nsfw) &&
  57     isDateValid(video.published) &&
  58     isDateValid(video.updated) &&
  59     (!video.content || isRemoteVideoContentValid(video.mediaType, video.content)) &&
  60     isRemoteVideoIconValid(video.icon) &&
  61     setValidRemoteVideoUrls(video) &&
  62     video.url.length !== 0 &&
  63     setValidAttributedTo(video) &&
  64     video.attributedTo.length !== 0
  65 }
  66
  67 // ---------------------------------------------------------------------------
  68
  69 export {
  70   isVideoTorrentCreateActivityValid,
  71   isVideoTorrentUpdateActivityValid,
  72   isVideoTorrentDeleteActivityValid,
  73   isVideoFlagValid
  74 }
  75
  76 // ---------------------------------------------------------------------------
  77
  78 function setValidRemoteTags (video: any) {
  79   if (Array.isArray(video.tag) === false) return false
  80
  81   video.tag = video.tag.filter(t => {
  82     return t.type === 'Hashtag' &&
  83       isVideoTagValid(t.name)
  84   })
  85
  86   return true
  87 }
  88
  89 function isRemoteIdentifierValid (data: any) {
  90   return validator.isInt(data.identifier, { min: 0 })
  91 }
  92
  93 function isRemoteVideoContentValid (mediaType: string, content: string) {
  94   return mediaType === 'text/markdown' && isVideoTruncatedDescriptionValid(content)
  95 }
  96
  97 function isRemoteVideoIconValid (icon: any) {
  98   return icon.type === 'Image' &&
  99     isActivityPubUrlValid(icon.url) &&
 100     icon.mediaType === 'image/jpeg' &&
 101     validator.isInt(icon.width + '', { min: 0 }) &&
 102     validator.isInt(icon.height + '', { min: 0 })
 103 }
 104
 105 function setValidRemoteVideoUrls (video: any) {
 106   if (Array.isArray(video.url) === false) return false
 107
 108   video.url = video.url.filter(u => isRemoteVideoUrlValid(u))
 109
 110   return true
 111 }
 112
 113 function isRemoteVideoUrlValid (url: any) {
 114   return url.type === 'Link' &&
 115     (
 116       ACTIVITY_PUB.URL_MIME_TYPES.VIDEO.indexOf(url.mimeType) !== -1 &&
 117       isActivityPubUrlValid(url.url) &&
 118       validator.isInt(url.width + '', { min: 0 }) &&
 119       validator.isInt(url.size + '', { min: 0 })
 120     ) ||
 121     (
 122       ACTIVITY_PUB.URL_MIME_TYPES.TORRENT.indexOf(url.mimeType) !== -1 &&
 123       isActivityPubUrlValid(url.url) &&
 124       validator.isInt(url.width + '', { min: 0 })
 125     ) ||
 126     (
 127       ACTIVITY_PUB.URL_MIME_TYPES.MAGNET.indexOf(url.mimeType) !== -1 &&
 128       validator.isLength(url.url, { min: 5 }) &&
 129       validator.isInt(url.width + '', { min: 0 })
 130     )
 131 }