PeerTube/server/lib/activitypub/videos.ts

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import * as Bluebird from 'bluebird'
import * as sequelize from 'sequelize'
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import * as magnetUtil from 'magnet-uri'
import { join } from 'path'
import * as request from 'request'
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import { ActivityIconObject, ActivityUrlObject, ActivityVideoUrlObject, VideoState } from '../../../shared/index'
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import { VideoTorrentObject } from '../../../shared/models/activitypub/objects'
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import { VideoPrivacy } from '../../../shared/models/videos'
import { sanitizeAndCheckVideoTorrentObject } from '../../helpers/custom-validators/activitypub/videos'
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import { isVideoFileInfoHashValid } from '../../helpers/custom-validators/videos'
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import { resetSequelizeInstance, retryTransactionWrapper } from '../../helpers/database-utils'
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import { logger } from '../../helpers/logger'
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import { doRequest, doRequestAndSaveToFile } from '../../helpers/requests'
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import { ACTIVITY_PUB, CONFIG, REMOTE_SCHEME, sequelizeTypescript, VIDEO_MIMETYPE_EXT } from '../../initializers'
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import { ActorModel } from '../../models/activitypub/actor'
import { TagModel } from '../../models/video/tag'
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import { VideoModel } from '../../models/video/video'
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import { VideoChannelModel } from '../../models/video/video-channel'
import { VideoFileModel } from '../../models/video/video-file'
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import { getOrCreateActorAndServerAndModel } from './actor'
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import { addVideoComments } from './video-comments'
import { crawlCollectionPage } from './crawl'
import { sendCreateVideo, sendUpdateVideo } from './send'
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import { isArray } from '../../helpers/custom-validators/misc'
import { VideoCaptionModel } from '../../models/video/video-caption'
import { JobQueue } from '../job-queue'
import { ActivitypubHttpFetcherPayload } from '../job-queue/handlers/activitypub-http-fetcher'
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import { createRates } from './video-rates'
import { addVideoShares, shareVideoByServerAndChannel } from './share'
import { AccountModel } from '../../models/account/account'
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import { fetchVideoByUrl, VideoFetchByUrlType } from '../../helpers/video'
async function federateVideoIfNeeded (video: VideoModel, isNewVideo: boolean, transaction?: sequelize.Transaction) {
// If the video is not private and published, we federate it
if (video.privacy !== VideoPrivacy.PRIVATE && video.state === VideoState.PUBLISHED) {
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// Fetch more attributes that we will need to serialize in AP object
if (isArray(video.VideoCaptions) === false) {
video.VideoCaptions = await video.$get('VideoCaptions', {
attributes: [ 'language' ],
transaction
}) as VideoCaptionModel[]
}
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if (isNewVideo) {
// Now we'll add the video's meta data to our followers
await sendCreateVideo(video, transaction)
await shareVideoByServerAndChannel(video, transaction)
} else {
await sendUpdateVideo(video, transaction)
}
}
}
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async function fetchRemoteVideo (videoUrl: string): Promise<{ response: request.RequestResponse, videoObject: VideoTorrentObject }> {
const options = {
uri: videoUrl,
method: 'GET',
json: true,
activityPub: true
}
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logger.info('Fetching remote video %s.', videoUrl)
const { response, body } = await doRequest(options)
if (sanitizeAndCheckVideoTorrentObject(body) === false) {
logger.debug('Remote video JSON is not valid.', { body })
return { response, videoObject: undefined }
}
return { response, videoObject: body }
}
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async function fetchRemoteVideoDescription (video: VideoModel) {
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const host = video.VideoChannel.Account.Actor.Server.host
const path = video.getDescriptionAPIPath()
const options = {
uri: REMOTE_SCHEME.HTTP + '://' + host + path,
json: true
}
const { body } = await doRequest(options)
return body.description ? body.description : ''
}
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function fetchRemoteVideoStaticFile (video: VideoModel, path: string, reject: Function) {
const host = video.VideoChannel.Account.Actor.Server.host
// We need to provide a callback, if no we could have an uncaught exception
return request.get(REMOTE_SCHEME.HTTP + '://' + host + path, err => {
if (err) reject(err)
})
}
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function generateThumbnailFromUrl (video: VideoModel, icon: ActivityIconObject) {
const thumbnailName = video.getThumbnailName()
const thumbnailPath = join(CONFIG.STORAGE.THUMBNAILS_DIR, thumbnailName)
const options = {
method: 'GET',
uri: icon.url
}
return doRequestAndSaveToFile(options, thumbnailPath)
}
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function getOrCreateVideoChannelFromVideoObject (videoObject: VideoTorrentObject) {
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const channel = videoObject.attributedTo.find(a => a.type === 'Group')
if (!channel) throw new Error('Cannot find associated video channel to video ' + videoObject.url)
return getOrCreateActorAndServerAndModel(channel.id, 'all')
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}
type SyncParam = {
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likes: boolean
dislikes: boolean
shares: boolean
comments: boolean
thumbnail: boolean
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refreshVideo: boolean
}
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async function syncVideoExternalAttributes (video: VideoModel, fetchedVideo: VideoTorrentObject, syncParam: SyncParam) {
logger.info('Adding likes/dislikes/shares/comments of video %s.', video.uuid)
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const jobPayloads: ActivitypubHttpFetcherPayload[] = []
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if (syncParam.likes === true) {
await crawlCollectionPage<string>(fetchedVideo.likes, items => createRates(items, video, 'like'))
.catch(err => logger.error('Cannot add likes of video %s.', video.uuid, { err }))
} else {
jobPayloads.push({ uri: fetchedVideo.likes, videoId: video.id, type: 'video-likes' as 'video-likes' })
}
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if (syncParam.dislikes === true) {
await crawlCollectionPage<string>(fetchedVideo.dislikes, items => createRates(items, video, 'dislike'))
.catch(err => logger.error('Cannot add dislikes of video %s.', video.uuid, { err }))
} else {
jobPayloads.push({ uri: fetchedVideo.dislikes, videoId: video.id, type: 'video-dislikes' as 'video-dislikes' })
}
if (syncParam.shares === true) {
await crawlCollectionPage<string>(fetchedVideo.shares, items => addVideoShares(items, video))
.catch(err => logger.error('Cannot add shares of video %s.', video.uuid, { err }))
} else {
jobPayloads.push({ uri: fetchedVideo.shares, videoId: video.id, type: 'video-shares' as 'video-shares' })
}
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if (syncParam.comments === true) {
await crawlCollectionPage<string>(fetchedVideo.comments, items => addVideoComments(items, video))
.catch(err => logger.error('Cannot add comments of video %s.', video.uuid, { err }))
} else {
jobPayloads.push({ uri: fetchedVideo.shares, videoId: video.id, type: 'video-shares' as 'video-shares' })
}
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await Bluebird.map(jobPayloads, payload => JobQueue.Instance.createJob({ type: 'activitypub-http-fetcher', payload }))
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}
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async function getOrCreateVideoAndAccountAndChannel (options: {
videoObject: VideoTorrentObject | string,
syncParam?: SyncParam,
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fetchType?: VideoFetchByUrlType,
refreshViews?: boolean
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}) {
// Default params
const syncParam = options.syncParam || { likes: true, dislikes: true, shares: true, comments: true, thumbnail: true, refreshVideo: false }
const fetchType = options.fetchType || 'all'
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const refreshViews = options.refreshViews || false
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// Get video url
const videoUrl = typeof options.videoObject === 'string' ? options.videoObject : options.videoObject.id
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let videoFromDatabase = await fetchVideoByUrl(videoUrl, fetchType)
if (videoFromDatabase) {
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const refreshOptions = {
video: videoFromDatabase,
fetchedType: fetchType,
syncParam,
refreshViews
}
const p = refreshVideoIfNeeded(refreshOptions)
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if (syncParam.refreshVideo === true) videoFromDatabase = await p
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return { video: videoFromDatabase }
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}
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const { videoObject: fetchedVideo } = await fetchRemoteVideo(videoUrl)
if (!fetchedVideo) throw new Error('Cannot fetch remote video with url: ' + videoUrl)
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const channelActor = await getOrCreateVideoChannelFromVideoObject(fetchedVideo)
const video = await retryTransactionWrapper(createVideo, fetchedVideo, channelActor, syncParam.thumbnail)
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await syncVideoExternalAttributes(video, fetchedVideo, syncParam)
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return { video }
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}
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async function updateVideoFromAP (options: {
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video: VideoModel,
videoObject: VideoTorrentObject,
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account: AccountModel,
channel: VideoChannelModel,
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updateViews: boolean,
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overrideTo?: string[]
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}) {
logger.debug('Updating remote video "%s".', options.videoObject.uuid)
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let videoFieldsSave: any
try {
const updatedVideo: VideoModel = await sequelizeTypescript.transaction(async t => {
const sequelizeOptions = {
transaction: t
}
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videoFieldsSave = options.video.toJSON()
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// Check actor has the right to update the video
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const videoChannel = options.video.VideoChannel
if (videoChannel.Account.id !== options.account.id) {
throw new Error('Account ' + options.account.Actor.url + ' does not own video channel ' + videoChannel.Actor.url)
}
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const to = options.overrideTo ? options.overrideTo : options.videoObject.to
const videoData = await videoActivityObjectToDBAttributes(options.channel, options.videoObject, to)
options.video.set('name', videoData.name)
options.video.set('uuid', videoData.uuid)
options.video.set('url', videoData.url)
options.video.set('category', videoData.category)
options.video.set('licence', videoData.licence)
options.video.set('language', videoData.language)
options.video.set('description', videoData.description)
options.video.set('support', videoData.support)
options.video.set('nsfw', videoData.nsfw)
options.video.set('commentsEnabled', videoData.commentsEnabled)
options.video.set('waitTranscoding', videoData.waitTranscoding)
options.video.set('state', videoData.state)
options.video.set('duration', videoData.duration)
options.video.set('createdAt', videoData.createdAt)
options.video.set('publishedAt', videoData.publishedAt)
options.video.set('privacy', videoData.privacy)
options.video.set('channelId', videoData.channelId)
if (options.updateViews === true) options.video.set('views', videoData.views)
await options.video.save(sequelizeOptions)
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// Don't block on request
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generateThumbnailFromUrl(options.video, options.videoObject.icon)
.catch(err => logger.warn('Cannot generate thumbnail of %s.', options.videoObject.id, { err }))
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{
const videoFileAttributes = videoFileActivityUrlToDBAttributes(options.video, options.videoObject)
const newVideoFiles = videoFileAttributes.map(a => new VideoFileModel(a))
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// Remove video files that do not exist anymore
const destroyTasks = options.video.VideoFiles
.filter(f => !newVideoFiles.find(newFile => newFile.hasSameUniqueKeysThan(f)))
.map(f => f.destroy(sequelizeOptions))
await Promise.all(destroyTasks)
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// Update or add other one
const upsertTasks = videoFileAttributes.map(a => VideoFileModel.upsert(a, sequelizeOptions))
await Promise.all(upsertTasks)
}
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{
// Update Tags
const tags = options.videoObject.tag.map(tag => tag.name)
const tagInstances = await TagModel.findOrCreateTags(tags, t)
await options.video.$set('Tags', tagInstances, sequelizeOptions)
}
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{
// Update captions
await VideoCaptionModel.deleteAllCaptionsOfRemoteVideo(options.video.id, t)
const videoCaptionsPromises = options.videoObject.subtitleLanguage.map(c => {
return VideoCaptionModel.insertOrReplaceLanguage(options.video.id, c.identifier, t)
})
await Promise.all(videoCaptionsPromises)
}
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})
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logger.info('Remote video with uuid %s updated', options.videoObject.uuid)
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return updatedVideo
} catch (err) {
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if (options.video !== undefined && videoFieldsSave !== undefined) {
resetSequelizeInstance(options.video, videoFieldsSave)
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}
// This is just a debug because we will retry the insert
logger.debug('Cannot update the remote video.', { err })
throw err
}
}
export {
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updateVideoFromAP,
federateVideoIfNeeded,
fetchRemoteVideo,
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getOrCreateVideoAndAccountAndChannel,
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fetchRemoteVideoStaticFile,
fetchRemoteVideoDescription,
generateThumbnailFromUrl,
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getOrCreateVideoChannelFromVideoObject
}
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// ---------------------------------------------------------------------------
function isActivityVideoUrlObject (url: ActivityUrlObject): url is ActivityVideoUrlObject {
const mimeTypes = Object.keys(VIDEO_MIMETYPE_EXT)
return mimeTypes.indexOf(url.mimeType) !== -1 && url.mimeType.startsWith('video/')
}
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async function createVideo (videoObject: VideoTorrentObject, channelActor: ActorModel, waitThumbnail = false) {
logger.debug('Adding remote video %s.', videoObject.id)
const videoCreated: VideoModel = await sequelizeTypescript.transaction(async t => {
const sequelizeOptions = { transaction: t }
const videoData = await videoActivityObjectToDBAttributes(channelActor.VideoChannel, videoObject, videoObject.to)
const video = VideoModel.build(videoData)
const videoCreated = await video.save(sequelizeOptions)
// Process files
const videoFileAttributes = videoFileActivityUrlToDBAttributes(videoCreated, videoObject)
if (videoFileAttributes.length === 0) {
throw new Error('Cannot find valid files for video %s ' + videoObject.url)
}
const videoFilePromises = videoFileAttributes.map(f => VideoFileModel.create(f, { transaction: t }))
await Promise.all(videoFilePromises)
// Process tags
const tags = videoObject.tag.map(t => t.name)
const tagInstances = await TagModel.findOrCreateTags(tags, t)
await videoCreated.$set('Tags', tagInstances, sequelizeOptions)
// Process captions
const videoCaptionsPromises = videoObject.subtitleLanguage.map(c => {
return VideoCaptionModel.insertOrReplaceLanguage(videoCreated.id, c.identifier, t)
})
await Promise.all(videoCaptionsPromises)
logger.info('Remote video with uuid %s inserted.', videoObject.uuid)
videoCreated.VideoChannel = channelActor.VideoChannel
return videoCreated
})
const p = generateThumbnailFromUrl(videoCreated, videoObject.icon)
.catch(err => logger.warn('Cannot generate thumbnail of %s.', videoObject.id, { err }))
if (waitThumbnail === true) await p
return videoCreated
}
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async function refreshVideoIfNeeded (options: {
video: VideoModel,
fetchedType: VideoFetchByUrlType,
syncParam: SyncParam,
refreshViews: boolean
}): Promise<VideoModel> {
if (!options.video.isOutdated()) return options.video
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// We need more attributes if the argument video was fetched with not enough joints
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const video = options.fetchedType === 'all' ? options.video : await VideoModel.loadByUrlAndPopulateAccount(options.video.url)
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try {
const { response, videoObject } = await fetchRemoteVideo(video.url)
if (response.statusCode === 404) {
// Video does not exist anymore
await video.destroy()
return undefined
}
if (videoObject === undefined) {
logger.warn('Cannot refresh remote video: invalid body.')
return video
}
const channelActor = await getOrCreateVideoChannelFromVideoObject(videoObject)
const account = await AccountModel.load(channelActor.VideoChannel.accountId)
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const updateOptions = {
video,
videoObject,
account,
channel: channelActor.VideoChannel,
updateViews: options.refreshViews
}
await retryTransactionWrapper(updateVideoFromAP, updateOptions)
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await syncVideoExternalAttributes(video, videoObject, options.syncParam)
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} catch (err) {
logger.warn('Cannot refresh video.', { err })
return video
}
}
async function videoActivityObjectToDBAttributes (
videoChannel: VideoChannelModel,
videoObject: VideoTorrentObject,
to: string[] = []
) {
const privacy = to.indexOf(ACTIVITY_PUB.PUBLIC) !== -1 ? VideoPrivacy.PUBLIC : VideoPrivacy.UNLISTED
const duration = videoObject.duration.replace(/[^\d]+/, '')
let language: string | undefined
if (videoObject.language) {
language = videoObject.language.identifier
}
let category: number | undefined
if (videoObject.category) {
category = parseInt(videoObject.category.identifier, 10)
}
let licence: number | undefined
if (videoObject.licence) {
licence = parseInt(videoObject.licence.identifier, 10)
}
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,
waitTranscoding: videoObject.waitTranscoding,
state: videoObject.state,
channelId: videoChannel.id,
duration: parseInt(duration, 10),
createdAt: new Date(videoObject.published),
publishedAt: new Date(videoObject.published),
// FIXME: updatedAt does not seems to be considered by Sequelize
updatedAt: new Date(videoObject.updated),
views: videoObject.views,
likes: 0,
dislikes: 0,
remote: true,
privacy
}
}
function videoFileActivityUrlToDBAttributes (videoCreated: VideoModel, videoObject: VideoTorrentObject) {
const fileUrls = videoObject.url.filter(u => isActivityVideoUrlObject(u)) as ActivityVideoUrlObject[]
if (fileUrls.length === 0) {
throw new Error('Cannot find video files for ' + videoCreated.url)
}
const attributes: VideoFileModel[] = []
for (const fileUrl of fileUrls) {
// Fetch associated magnet uri
const magnet = videoObject.url.find(u => {
return u.mimeType === 'application/x-bittorrent;x-scheme-handler/magnet' && 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 attribute = {
extname: VIDEO_MIMETYPE_EXT[ fileUrl.mimeType ],
infoHash: parsed.infoHash,
resolution: fileUrl.height,
size: fileUrl.size,
videoId: videoCreated.id,
fps: fileUrl.fps
} as VideoFileModel
attributes.push(attribute)
}
return attributes
}