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   isVideoUrlValid,
  12   isVideoViewsValid
  13 } from '../videos'
  14 import { isActivityPubUrlValid, isBaseActivityValid } from './misc'
  15
  16 function isVideoTorrentAddActivityValid (activity: any) {
  17   return isBaseActivityValid(activity, 'Add') &&
  18     isVideoTorrentObjectValid(activity.object)
  19 }
  20
  21 function isVideoTorrentUpdateActivityValid (activity: any) {
  22   return isBaseActivityValid(activity, 'Update') &&
  23     isVideoTorrentObjectValid(activity.object)
  24 }
  25
  26 function isVideoTorrentDeleteActivityValid (activity: any) {
  27   return isBaseActivityValid(activity, 'Delete')
  28 }
  29
  30 function isVideoFlagValid (activity: any) {
  31   return isBaseActivityValid(activity, 'Create') &&
  32     activity.object.type === 'Flag' &&
  33     isVideoAbuseReasonValid(activity.object.content) &&
  34     isActivityPubUrlValid(activity.object.object)
  35 }
  36
  37 function isActivityPubVideoDurationValid (value: string) {
  38   // https://www.w3.org/TR/activitystreams-vocabulary/#dfn-duration
  39   return exists(value) &&
  40     typeof value === 'string' &&
  41     value.startsWith('PT') &&
  42     value.endsWith('S') &&
  43     isVideoDurationValid(value.replace(/[^0-9]+/g, ''))
  44 }
  45
  46 function isVideoTorrentObjectValid (video: any) {
  47   return video.type === 'Video' &&
  48     isActivityPubUrlValid(video.id) &&
  49     isVideoNameValid(video.name) &&
  50     isActivityPubVideoDurationValid(video.duration) &&
  51     isUUIDValid(video.uuid) &&
  52     setValidRemoteTags(video) &&
  53     isRemoteIdentifierValid(video.category) &&
  54     isRemoteIdentifierValid(video.licence) &&
  55     (!video.language || isRemoteIdentifierValid(video.language)) &&
  56     isVideoViewsValid(video.views) &&
  57     isVideoNSFWValid(video.nsfw) &&
  58     isDateValid(video.published) &&
  59     isDateValid(video.updated) &&
  60     isRemoteVideoContentValid(video.mediaType, video.content) &&
  61     isRemoteVideoIconValid(video.icon) &&
  62     setValidRemoteVideoUrls(video) &&
  63     video.url.length !== 0
  64 }
  65
  66 // ---------------------------------------------------------------------------
  67
  68 export {
  69   isVideoTorrentAddActivityValid,
  70   isVideoTorrentUpdateActivityValid,
  71   isVideoTorrentDeleteActivityValid,
  72   isVideoFlagValid
  73 }
  74
  75 // ---------------------------------------------------------------------------
  76
  77 function setValidRemoteTags (video: any) {
  78   if (Array.isArray(video.tag) === false) return false
  79
  80   const newTag = video.tag.filter(t => {
  81     return t.type === 'Hashtag' &&
  82       isVideoTagValid(t.name)
  83   })
  84
  85   video.tag = newTag
  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     isVideoUrlValid(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   const newUrl = video.url.filter(u => isRemoteVideoUrlValid(u))
 109   video.url = newUrl
 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       isVideoUrlValid(url.url) &&
 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       isVideoUrlValid(url.url) &&
 125       validator.isInt(url.width + '', { min: 0 })
 126     ) ||
 127     (
 128       ACTIVITY_PUB.URL_MIME_TYPES.MAGNET.indexOf(url.mimeType) !== -1 &&
 129       validator.isLength(url.url, { min: 5 }) &&
 130       validator.isInt(url.width + '', { min: 0 })
 131     )
 132 }