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

   1 import * as validator from 'validator'
   2 import { ACTIVITY_PUB } from '../../../initializers'
   3 import { exists, isBooleanValid, isDateValid, isUUIDValid } from '../misc'
   4 import {
   5   isVideoAbuseReasonValid,
   6   isVideoDurationValid,
   7   isVideoNameValid,
   8   isVideoTagValid,
   9   isVideoTruncatedDescriptionValid,
  10   isVideoViewsValid
  11 } from '../videos'
  12 import { isActivityPubUrlValid, isBaseActivityValid, setValidAttributedTo } from './misc'
  13
  14 function isVideoTorrentCreateActivityValid (activity: any) {
  15   return isBaseActivityValid(activity, 'Create') &&
  16     isVideoTorrentObjectValid(activity.object)
  17 }
  18
  19 function isVideoTorrentUpdateActivityValid (activity: any) {
  20   return isBaseActivityValid(activity, 'Update') &&
  21     isVideoTorrentObjectValid(activity.object)
  22 }
  23
  24 function isVideoTorrentDeleteActivityValid (activity: any) {
  25   return isBaseActivityValid(activity, 'Delete')
  26 }
  27
  28 function isVideoFlagValid (activity: any) {
  29   return isBaseActivityValid(activity, 'Create') &&
  30     activity.object.type === 'Flag' &&
  31     isVideoAbuseReasonValid(activity.object.content) &&
  32     isActivityPubUrlValid(activity.object.object)
  33 }
  34
  35 function isActivityPubVideoDurationValid (value: string) {
  36   // https://www.w3.org/TR/activitystreams-vocabulary/#dfn-duration
  37   return exists(value) &&
  38     typeof value === 'string' &&
  39     value.startsWith('PT') &&
  40     value.endsWith('S') &&
  41     isVideoDurationValid(value.replace(/[^0-9]+/g, ''))
  42 }
  43
  44 function isVideoTorrentObjectValid (video: any) {
  45   return video.type === 'Video' &&
  46     isActivityPubUrlValid(video.id) &&
  47     isVideoNameValid(video.name) &&
  48     isActivityPubVideoDurationValid(video.duration) &&
  49     isUUIDValid(video.uuid) &&
  50     setValidRemoteTags(video) &&
  51     (!video.category || isRemoteIdentifierValid(video.category)) &&
  52     (!video.licence || isRemoteIdentifierValid(video.licence)) &&
  53     (!video.language || isRemoteIdentifierValid(video.language)) &&
  54     isVideoViewsValid(video.views) &&
  55     isBooleanValid(video.nsfw) &&
  56     isBooleanValid(video.commentsEnabled) &&
  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   isVideoTorrentObjectValid
  75 }
  76
  77 // ---------------------------------------------------------------------------
  78
  79 function setValidRemoteTags (video: any) {
  80   if (Array.isArray(video.tag) === false) return false
  81
  82   video.tag = video.tag.filter(t => {
  83     return t.type === 'Hashtag' &&
  84       isVideoTagValid(t.name)
  85   })
  86
  87   return true
  88 }
  89
  90 function isRemoteIdentifierValid (data: any) {
  91   return validator.isInt(data.identifier, { min: 0 })
  92 }
  93
  94 function isRemoteVideoContentValid (mediaType: string, content: string) {
  95   return mediaType === 'text/markdown' && isVideoTruncatedDescriptionValid(content)
  96 }
  97
  98 function isRemoteVideoIconValid (icon: any) {
  99   return icon.type === 'Image' &&
 100     isActivityPubUrlValid(icon.url) &&
 101     icon.mediaType === 'image/jpeg' &&
 102     validator.isInt(icon.width + '', { min: 0 }) &&
 103     validator.isInt(icon.height + '', { min: 0 })
 104 }
 105
 106 function setValidRemoteVideoUrls (video: any) {
 107   if (Array.isArray(video.url) === false) return false
 108
 109   video.url = video.url.filter(u => isRemoteVideoUrlValid(u))
 110
 111   return true
 112 }
 113
 114 function isRemoteVideoUrlValid (url: any) {
 115   return url.type === 'Link' &&
 116     (
 117       ACTIVITY_PUB.URL_MIME_TYPES.VIDEO.indexOf(url.mimeType) !== -1 &&
 118       isActivityPubUrlValid(url.href) &&
 119       validator.isInt(url.width + '', { min: 0 }) &&
 120       validator.isInt(url.size + '', { min: 0 })
 121     ) ||
 122     (
 123       ACTIVITY_PUB.URL_MIME_TYPES.TORRENT.indexOf(url.mimeType) !== -1 &&
 124       isActivityPubUrlValid(url.href) &&
 125       validator.isInt(url.width + '', { min: 0 })
 126     ) ||
 127     (
 128       ACTIVITY_PUB.URL_MIME_TYPES.MAGNET.indexOf(url.mimeType) !== -1 &&
 129       validator.isLength(url.href, { min: 5 }) &&
 130       validator.isInt(url.width + '', { min: 0 })
 131     )
 132 }