PeerTube/server/lib/activitypub/videos/get.ts

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2021-06-02 08:47:05 -05:00
import { getAPId } from '@server/helpers/activitypub'
import { retryTransactionWrapper } from '@server/helpers/database-utils'
import { fetchVideoByUrl, VideoFetchByUrlType } from '@server/helpers/video'
import { JobQueue } from '@server/lib/job-queue'
import { MVideoAccountLightBlacklistAllFiles, MVideoImmutable, MVideoThumbnail } from '@server/types/models'
import { refreshVideoIfNeeded } from './refresh'
import { APVideoCreator, fetchRemoteVideo, SyncParam, syncVideoExternalAttributes } from './shared'
type GetVideoResult <T> = Promise<{
video: T
created: boolean
autoBlacklisted?: boolean
}>
type GetVideoParamAll = {
videoObject: { id: string } | string
syncParam?: SyncParam
fetchType?: 'all'
allowRefresh?: boolean
}
type GetVideoParamImmutable = {
videoObject: { id: string } | string
syncParam?: SyncParam
fetchType: 'only-immutable-attributes'
allowRefresh: false
}
type GetVideoParamOther = {
videoObject: { id: string } | string
syncParam?: SyncParam
fetchType?: 'all' | 'only-video'
allowRefresh?: boolean
}
function getOrCreateAPVideo (options: GetVideoParamAll): GetVideoResult<MVideoAccountLightBlacklistAllFiles>
function getOrCreateAPVideo (options: GetVideoParamImmutable): GetVideoResult<MVideoImmutable>
function getOrCreateAPVideo (options: GetVideoParamOther): GetVideoResult<MVideoAccountLightBlacklistAllFiles | MVideoThumbnail>
async function getOrCreateAPVideo (
options: GetVideoParamAll | GetVideoParamImmutable | GetVideoParamOther
): GetVideoResult<MVideoAccountLightBlacklistAllFiles | MVideoThumbnail | MVideoImmutable> {
// Default params
const syncParam = options.syncParam || { likes: true, dislikes: true, shares: true, comments: true, thumbnail: true, refreshVideo: false }
const fetchType = options.fetchType || 'all'
const allowRefresh = options.allowRefresh !== false
// Get video url
const videoUrl = getAPId(options.videoObject)
let videoFromDatabase = await fetchVideoByUrl(videoUrl, fetchType)
if (videoFromDatabase) {
if (allowRefresh === true) {
// Typings ensure allowRefresh === false in only-immutable-attributes fetch type
videoFromDatabase = await scheduleRefresh(videoFromDatabase as MVideoThumbnail, fetchType, syncParam)
}
return { video: videoFromDatabase, created: false }
}
const { videoObject } = await fetchRemoteVideo(videoUrl)
if (!videoObject) throw new Error('Cannot fetch remote video with url: ' + videoUrl)
try {
const creator = new APVideoCreator(videoObject)
const { autoBlacklisted, videoCreated } = await retryTransactionWrapper(creator.create.bind(creator), syncParam.thumbnail)
await syncVideoExternalAttributes(videoCreated, videoObject, syncParam)
return { video: videoCreated, created: true, autoBlacklisted }
} catch (err) {
// Maybe a concurrent getOrCreateAPVideo call created this video
if (err.name === 'SequelizeUniqueConstraintError') {
const alreadyCreatedVideo = await fetchVideoByUrl(videoUrl, fetchType)
if (alreadyCreatedVideo) return { video: alreadyCreatedVideo, created: false }
}
throw err
}
}
// ---------------------------------------------------------------------------
export {
getOrCreateAPVideo
}
// ---------------------------------------------------------------------------
async function scheduleRefresh (video: MVideoThumbnail, fetchType: VideoFetchByUrlType, syncParam: SyncParam) {
if (!video.isOutdated()) return video
const refreshOptions = {
video,
fetchedType: fetchType,
syncParam
}
if (syncParam.refreshVideo === true) {
return refreshVideoIfNeeded(refreshOptions)
}
await JobQueue.Instance.createJobWithPromise({
type: 'activitypub-refresher',
payload: { type: 'video', url: video.url }
})
return video
}