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 { isVideoChannelDescriptionValid, isVideoChannelNameValid } from '../video-channels'
   5 import {
   6   isVideoDurationValid,
   7   isVideoNameValid,
   8   isVideoNSFWValid,
   9   isVideoTagValid,
  10   isVideoTruncatedDescriptionValid,
  11   isVideoUrlValid,
  12   isVideoViewsValid
  13 } from '../videos'
  14 import { 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 isActivityPubVideoDurationValid (value: string) {
  31   // https://www.w3.org/TR/activitystreams-vocabulary/#dfn-duration
  32   return exists(value) &&
  33     typeof value === 'string' &&
  34     value.startsWith('PT') &&
  35     value.endsWith('S') &&
  36     isVideoDurationValid(value.replace(/[^0-9]+/, ''))
  37 }
  38
  39 function isVideoTorrentObjectValid (video: any) {
  40   return video.type === 'Video' &&
  41     isVideoNameValid(video.name) &&
  42     isActivityPubVideoDurationValid(video.duration) &&
  43     isUUIDValid(video.uuid) &&
  44     setValidRemoteTags(video) &&
  45     isRemoteIdentifierValid(video.category) &&
  46     isRemoteIdentifierValid(video.licence) &&
  47     isRemoteIdentifierValid(video.language) &&
  48     isVideoViewsValid(video.video) &&
  49     isVideoNSFWValid(video.nsfw) &&
  50     isDateValid(video.published) &&
  51     isDateValid(video.updated) &&
  52     isRemoteVideoContentValid(video.mediaType, video.content) &&
  53     isRemoteVideoIconValid(video.icon) &&
  54     setValidRemoteVideoUrls(video.url)
  55 }
  56
  57 function isVideoChannelCreateActivityValid (activity: any) {
  58   return isBaseActivityValid(activity, 'Create') &&
  59     isVideoChannelObjectValid(activity.object)
  60 }
  61
  62 function isVideoChannelUpdateActivityValid (activity: any) {
  63   return isBaseActivityValid(activity, 'Update') &&
  64     isVideoChannelObjectValid(activity.object)
  65 }
  66
  67 function isVideoChannelDeleteActivityValid (activity: any) {
  68   return isBaseActivityValid(activity, 'Delete')
  69 }
  70
  71 function isVideoChannelObjectValid (videoChannel: any) {
  72   return videoChannel.type === 'VideoChannel' &&
  73     isVideoChannelNameValid(videoChannel.name) &&
  74     isVideoChannelDescriptionValid(videoChannel.description) &&
  75     isUUIDValid(videoChannel.uuid)
  76 }
  77
  78 // ---------------------------------------------------------------------------
  79
  80 export {
  81   isVideoTorrentAddActivityValid,
  82   isVideoChannelCreateActivityValid,
  83   isVideoTorrentUpdateActivityValid,
  84   isVideoChannelUpdateActivityValid,
  85   isVideoChannelDeleteActivityValid,
  86   isVideoTorrentDeleteActivityValid
  87 }
  88
  89 // ---------------------------------------------------------------------------
  90
  91 function setValidRemoteTags (video: any) {
  92   if (Array.isArray(video.tag) === false) return false
  93
  94   const newTag = video.tag.filter(t => {
  95     return t.type === 'Hashtag' &&
  96       isVideoTagValid(t.name)
  97   })
  98
  99   video.tag = newTag
 100   return true
 101 }
 102
 103 function isRemoteIdentifierValid (data: any) {
 104   return validator.isInt(data.identifier, { min: 0 })
 105 }
 106
 107 function isRemoteVideoContentValid (mediaType: string, content: string) {
 108   return mediaType === 'text/markdown' && isVideoTruncatedDescriptionValid(content)
 109 }
 110
 111 function isRemoteVideoIconValid (icon: any) {
 112   return icon.type === 'Image' &&
 113     isVideoUrlValid(icon.url) &&
 114     icon.mediaType === 'image/jpeg' &&
 115     validator.isInt(icon.width, { min: 0 }) &&
 116     validator.isInt(icon.height, { min: 0 })
 117 }
 118
 119 function setValidRemoteVideoUrls (video: any) {
 120   if (Array.isArray(video.url) === false) return false
 121
 122   const newUrl = video.url.filter(u => isRemoteVideoUrlValid(u))
 123   video.url = newUrl
 124
 125   return true
 126 }
 127
 128 function isRemoteVideoUrlValid (url: any) {
 129   return url.type === 'Link' &&
 130     ACTIVITY_PUB.VIDEO_URL_MIME_TYPES.indexOf(url.mimeType) !== -1 &&
 131     isVideoUrlValid(url.url) &&
 132     validator.isInt(url.width, { min: 0 }) &&
 133     validator.isInt(url.size, { min: 0 })
 134 }