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

   1 import validator from 'validator'
   2 import { ACTIVITY_PUB, CONSTRAINTS_FIELDS } from '../../../initializers/constants'
   3 import { peertubeTruncate } from '../../core-utils'
   4 import { exists, isArray, isBooleanValid, isDateValid, isUUIDValid } from '../misc'
   5 import {
   6   isVideoDurationValid,
   7   isVideoNameValid,
   8   isVideoStateValid,
   9   isVideoTagValid,
  10   isVideoTruncatedDescriptionValid,
  11   isVideoViewsValid
  12 } from '../videos'
  13 import { isActivityPubUrlValid, isBaseActivityValid, setValidAttributedTo } from './misc'
  14 import { VideoState } from '../../../../shared/models/videos'
  15 import { logger } from '@server/helpers/logger'
  16
  17 function sanitizeAndCheckVideoTorrentUpdateActivity (activity: any) {
  18   return isBaseActivityValid(activity, 'Update') &&
  19     sanitizeAndCheckVideoTorrentObject(activity.object)
  20 }
  21
  22 function isActivityPubVideoDurationValid (value: string) {
  23   // https://www.w3.org/TR/activitystreams-vocabulary/#dfn-duration
  24   return exists(value) &&
  25     typeof value === 'string' &&
  26     value.startsWith('PT') &&
  27     value.endsWith('S') &&
  28     isVideoDurationValid(value.replace(/[^0-9]+/g, ''))
  29 }
  30
  31 function sanitizeAndCheckVideoTorrentObject (video: any) {
  32   if (!video || video.type !== 'Video') return false
  33
  34   if (!setValidRemoteTags(video)) {
  35     logger.debug('Video has invalid tags', { video })
  36     return false
  37   }
  38   if (!setValidRemoteVideoUrls(video)) {
  39     logger.debug('Video has invalid urls', { video })
  40     return false
  41   }
  42   if (!setRemoteVideoTruncatedContent(video)) {
  43     logger.debug('Video has invalid content', { video })
  44     return false
  45   }
  46   if (!setValidAttributedTo(video)) {
  47     logger.debug('Video has invalid attributedTo', { video })
  48     return false
  49   }
  50   if (!setValidRemoteCaptions(video)) {
  51     logger.debug('Video has invalid captions', { video })
  52     return false
  53   }
  54   if (!setValidRemoteIcon(video)) {
  55     logger.debug('Video has invalid icons', { video })
  56     return false
  57   }
  58
  59   // Default attributes
  60   if (!isVideoStateValid(video.state)) video.state = VideoState.PUBLISHED
  61   if (!isBooleanValid(video.waitTranscoding)) video.waitTranscoding = false
  62   if (!isBooleanValid(video.downloadEnabled)) video.downloadEnabled = true
  63   if (!isBooleanValid(video.commentsEnabled)) video.commentsEnabled = false
  64
  65   return isActivityPubUrlValid(video.id) &&
  66     isVideoNameValid(video.name) &&
  67     isActivityPubVideoDurationValid(video.duration) &&
  68     isUUIDValid(video.uuid) &&
  69     (!video.category || isRemoteNumberIdentifierValid(video.category)) &&
  70     (!video.licence || isRemoteNumberIdentifierValid(video.licence)) &&
  71     (!video.language || isRemoteStringIdentifierValid(video.language)) &&
  72     isVideoViewsValid(video.views) &&
  73     isBooleanValid(video.sensitive) &&
  74     isBooleanValid(video.commentsEnabled) &&
  75     isBooleanValid(video.downloadEnabled) &&
  76     isDateValid(video.published) &&
  77     isDateValid(video.updated) &&
  78     (!video.originallyPublishedAt || isDateValid(video.originallyPublishedAt)) &&
  79     (!video.content || isRemoteVideoContentValid(video.mediaType, video.content)) &&
  80     video.url.length !== 0 &&
  81     video.attributedTo.length !== 0
  82 }
  83
  84 function isRemoteVideoUrlValid (url: any) {
  85   return url.type === 'Link' &&
  86     (
  87       ACTIVITY_PUB.URL_MIME_TYPES.VIDEO.indexOf(url.mediaType) !== -1 &&
  88       isActivityPubUrlValid(url.href) &&
  89       validator.isInt(url.height + '', { min: 0 }) &&
  90       validator.isInt(url.size + '', { min: 0 }) &&
  91       (!url.fps || validator.isInt(url.fps + '', { min: -1 }))
  92     ) ||
  93     (
  94       ACTIVITY_PUB.URL_MIME_TYPES.TORRENT.indexOf(url.mediaType) !== -1 &&
  95       isActivityPubUrlValid(url.href) &&
  96       validator.isInt(url.height + '', { min: 0 })
  97     ) ||
  98     (
  99       ACTIVITY_PUB.URL_MIME_TYPES.MAGNET.indexOf(url.mediaType) !== -1 &&
 100       validator.isLength(url.href, { min: 5 }) &&
 101       validator.isInt(url.height + '', { min: 0 })
 102     ) ||
 103     (
 104       (url.mediaType || url.mimeType) === 'application/x-mpegURL' &&
 105       isActivityPubUrlValid(url.href) &&
 106       isArray(url.tag)
 107     )
 108 }
 109
 110 // ---------------------------------------------------------------------------
 111
 112 export {
 113   sanitizeAndCheckVideoTorrentUpdateActivity,
 114   isRemoteStringIdentifierValid,
 115   sanitizeAndCheckVideoTorrentObject,
 116   isRemoteVideoUrlValid
 117 }
 118
 119 // ---------------------------------------------------------------------------
 120
 121 function setValidRemoteTags (video: any) {
 122   if (Array.isArray(video.tag) === false) return false
 123
 124   video.tag = video.tag.filter(t => {
 125     return t.type === 'Hashtag' &&
 126       isVideoTagValid(t.name)
 127   })
 128
 129   return true
 130 }
 131
 132 function setValidRemoteCaptions (video: any) {
 133   if (!video.subtitleLanguage) video.subtitleLanguage = []
 134
 135   if (Array.isArray(video.subtitleLanguage) === false) return false
 136
 137   video.subtitleLanguage = video.subtitleLanguage.filter(caption => {
 138     if (!isActivityPubUrlValid(caption.url)) caption.url = null
 139
 140     return isRemoteStringIdentifierValid(caption)
 141   })
 142
 143   return true
 144 }
 145
 146 function isRemoteNumberIdentifierValid (data: any) {
 147   return validator.isInt(data.identifier, { min: 0 })
 148 }
 149
 150 function isRemoteStringIdentifierValid (data: any) {
 151   return typeof data.identifier === 'string'
 152 }
 153
 154 function isRemoteVideoContentValid (mediaType: string, content: string) {
 155   return mediaType === 'text/markdown' && isVideoTruncatedDescriptionValid(content)
 156 }
 157
 158 function setValidRemoteIcon (video: any) {
 159   if (video.icon && !isArray(video.icon)) video.icon = [ video.icon ]
 160   if (!video.icon) video.icon = []
 161
 162   video.icon = video.icon.filter(icon => {
 163     return icon.type === 'Image' &&
 164       isActivityPubUrlValid(icon.url) &&
 165       icon.mediaType === 'image/jpeg' &&
 166       validator.isInt(icon.width + '', { min: 0 }) &&
 167       validator.isInt(icon.height + '', { min: 0 })
 168   })
 169
 170   return video.icon.length !== 0
 171 }
 172
 173 function setValidRemoteVideoUrls (video: any) {
 174   if (Array.isArray(video.url) === false) return false
 175
 176   video.url = video.url.filter(u => isRemoteVideoUrlValid(u))
 177
 178   return true
 179 }
 180
 181 function setRemoteVideoTruncatedContent (video: any) {
 182   if (video.content) {
 183     video.content = peertubeTruncate(video.content, { length: CONSTRAINTS_FIELDS.VIDEOS.TRUNCATED_DESCRIPTION.max })
 184   }
 185
 186   return true
 187 }