PeerTube/server/lib/activitypub/videos/shared/object-to-model-attributes.ts

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import { maxBy, minBy } from 'lodash'
import * as magnetUtil from 'magnet-uri'
import { basename } from 'path'
import { isAPVideoFileUrlMetadataObject } from '@server/helpers/custom-validators/activitypub/videos'
import { isVideoFileInfoHashValid } from '@server/helpers/custom-validators/videos'
import { logger } from '@server/helpers/logger'
import { getExtFromMimetype } from '@server/helpers/video'
import { ACTIVITY_PUB, MIMETYPES, P2P_MEDIA_LOADER_PEER_VERSION, PREVIEWS_SIZE, THUMBNAILS_SIZE } from '@server/initializers/constants'
import { generateTorrentFileName } from '@server/lib/video-paths'
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import { VideoCaptionModel } from '@server/models/video/video-caption'
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import { VideoFileModel } from '@server/models/video/video-file'
import { VideoStreamingPlaylistModel } from '@server/models/video/video-streaming-playlist'
import { FilteredModelAttributes } from '@server/types'
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import { isStreamingPlaylist, MChannelId, MStreamingPlaylistVideo, MVideo, MVideoFile, MVideoId } from '@server/types/models'
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import {
ActivityHashTagObject,
ActivityMagnetUrlObject,
ActivityPlaylistSegmentHashesObject,
ActivityPlaylistUrlObject,
ActivityTagObject,
ActivityUrlObject,
ActivityVideoUrlObject,
VideoObject,
VideoPrivacy,
VideoStreamingPlaylistType
} from '@shared/models'
function getThumbnailFromIcons (videoObject: VideoObject) {
let validIcons = videoObject.icon.filter(i => i.width > THUMBNAILS_SIZE.minWidth)
// Fallback if there are not valid icons
if (validIcons.length === 0) validIcons = videoObject.icon
return minBy(validIcons, 'width')
}
function getPreviewFromIcons (videoObject: VideoObject) {
const validIcons = videoObject.icon.filter(i => i.width > PREVIEWS_SIZE.minWidth)
return maxBy(validIcons, 'width')
}
function getTagsFromObject (videoObject: VideoObject) {
return videoObject.tag
.filter(isAPHashTagObject)
.map(t => t.name)
}
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function getFileAttributesFromUrl (
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videoOrPlaylist: MVideo | MStreamingPlaylistVideo,
urls: (ActivityTagObject | ActivityUrlObject)[]
) {
const fileUrls = urls.filter(u => isAPVideoUrlObject(u)) as ActivityVideoUrlObject[]
if (fileUrls.length === 0) return []
const attributes: FilteredModelAttributes<VideoFileModel>[] = []
for (const fileUrl of fileUrls) {
// Fetch associated magnet uri
const magnet = urls.filter(isAPMagnetUrlObject)
.find(u => u.height === fileUrl.height)
if (!magnet) throw new Error('Cannot find associated magnet uri for file ' + fileUrl.href)
const parsed = magnetUtil.decode(magnet.href)
if (!parsed || isVideoFileInfoHashValid(parsed.infoHash) === false) {
throw new Error('Cannot parse magnet URI ' + magnet.href)
}
const torrentUrl = Array.isArray(parsed.xs)
? parsed.xs[0]
: parsed.xs
// Fetch associated metadata url, if any
const metadata = urls.filter(isAPVideoFileUrlMetadataObject)
.find(u => {
return u.height === fileUrl.height &&
u.fps === fileUrl.fps &&
u.rel.includes(fileUrl.mediaType)
})
const extname = getExtFromMimetype(MIMETYPES.VIDEO.MIMETYPE_EXT, fileUrl.mediaType)
const resolution = fileUrl.height
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const videoId = isStreamingPlaylist(videoOrPlaylist) ? null : videoOrPlaylist.id
const videoStreamingPlaylistId = isStreamingPlaylist(videoOrPlaylist) ? videoOrPlaylist.id : null
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const attribute = {
extname,
infoHash: parsed.infoHash,
resolution,
size: fileUrl.size,
fps: fileUrl.fps || -1,
metadataUrl: metadata?.href,
// Use the name of the remote file because we don't proxify video file requests
filename: basename(fileUrl.href),
fileUrl: fileUrl.href,
torrentUrl,
// Use our own torrent name since we proxify torrent requests
torrentFilename: generateTorrentFileName(videoOrPlaylist, resolution),
// This is a video file owned by a video or by a streaming playlist
videoId,
videoStreamingPlaylistId
}
attributes.push(attribute)
}
return attributes
}
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function getStreamingPlaylistAttributesFromObject (video: MVideoId, videoObject: VideoObject, videoFiles: MVideoFile[]) {
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const playlistUrls = videoObject.url.filter(u => isAPStreamingPlaylistUrlObject(u)) as ActivityPlaylistUrlObject[]
if (playlistUrls.length === 0) return []
const attributes: (FilteredModelAttributes<VideoStreamingPlaylistModel> & { tagAPObject?: ActivityTagObject[] })[] = []
for (const playlistUrlObject of playlistUrls) {
const segmentsSha256UrlObject = playlistUrlObject.tag.find(isAPPlaylistSegmentHashesUrlObject)
let files: unknown[] = playlistUrlObject.tag.filter(u => isAPVideoUrlObject(u)) as ActivityVideoUrlObject[]
// FIXME: backward compatibility introduced in v2.1.0
if (files.length === 0) files = videoFiles
if (!segmentsSha256UrlObject) {
logger.warn('No segment sha256 URL found in AP playlist object.', { playlistUrl: playlistUrlObject })
continue
}
const attribute = {
type: VideoStreamingPlaylistType.HLS,
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playlistFilename: basename(playlistUrlObject.href),
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playlistUrl: playlistUrlObject.href,
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segmentsSha256Filename: basename(segmentsSha256UrlObject.href),
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segmentsSha256Url: segmentsSha256UrlObject.href,
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p2pMediaLoaderInfohashes: VideoStreamingPlaylistModel.buildP2PMediaLoaderInfoHashes(playlistUrlObject.href, files),
p2pMediaLoaderPeerVersion: P2P_MEDIA_LOADER_PEER_VERSION,
videoId: video.id,
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tagAPObject: playlistUrlObject.tag
}
attributes.push(attribute)
}
return attributes
}
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function getLiveAttributesFromObject (video: MVideoId, videoObject: VideoObject) {
return {
saveReplay: videoObject.liveSaveReplay,
permanentLive: videoObject.permanentLive,
videoId: video.id
}
}
function getCaptionAttributesFromObject (video: MVideoId, videoObject: VideoObject) {
return videoObject.subtitleLanguage.map(c => ({
videoId: video.id,
filename: VideoCaptionModel.generateCaptionName(c.identifier),
language: c.identifier,
fileUrl: c.url
}))
}
function getVideoAttributesFromObject (videoChannel: MChannelId, videoObject: VideoObject, to: string[] = []) {
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const privacy = to.includes(ACTIVITY_PUB.PUBLIC)
? VideoPrivacy.PUBLIC
: VideoPrivacy.UNLISTED
const duration = videoObject.duration.replace(/[^\d]+/, '')
const language = videoObject.language?.identifier
const category = videoObject.category
? parseInt(videoObject.category.identifier, 10)
: undefined
const licence = videoObject.licence
? parseInt(videoObject.licence.identifier, 10)
: undefined
const description = videoObject.content || null
const support = videoObject.support || null
return {
name: videoObject.name,
uuid: videoObject.uuid,
url: videoObject.id,
category,
licence,
language,
description,
support,
nsfw: videoObject.sensitive,
commentsEnabled: videoObject.commentsEnabled,
downloadEnabled: videoObject.downloadEnabled,
waitTranscoding: videoObject.waitTranscoding,
isLive: videoObject.isLiveBroadcast,
state: videoObject.state,
channelId: videoChannel.id,
duration: parseInt(duration, 10),
createdAt: new Date(videoObject.published),
publishedAt: new Date(videoObject.published),
originallyPublishedAt: videoObject.originallyPublishedAt
? new Date(videoObject.originallyPublishedAt)
: null,
updatedAt: new Date(videoObject.updated),
views: videoObject.views,
likes: 0,
dislikes: 0,
remote: true,
privacy
}
}
// ---------------------------------------------------------------------------
export {
getThumbnailFromIcons,
getPreviewFromIcons,
getTagsFromObject,
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getFileAttributesFromUrl,
getStreamingPlaylistAttributesFromObject,
getLiveAttributesFromObject,
getCaptionAttributesFromObject,
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getVideoAttributesFromObject
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}
// ---------------------------------------------------------------------------
function isAPVideoUrlObject (url: any): url is ActivityVideoUrlObject {
const urlMediaType = url.mediaType
return MIMETYPES.VIDEO.MIMETYPE_EXT[urlMediaType] && urlMediaType.startsWith('video/')
}
function isAPStreamingPlaylistUrlObject (url: any): url is ActivityPlaylistUrlObject {
return url && url.mediaType === 'application/x-mpegURL'
}
function isAPPlaylistSegmentHashesUrlObject (tag: any): tag is ActivityPlaylistSegmentHashesObject {
return tag && tag.name === 'sha256' && tag.type === 'Link' && tag.mediaType === 'application/json'
}
function isAPMagnetUrlObject (url: any): url is ActivityMagnetUrlObject {
return url && url.mediaType === 'application/x-bittorrent;x-scheme-handler/magnet'
}
function isAPHashTagObject (url: any): url is ActivityHashTagObject {
return url && url.type === 'Hashtag'
}