PeerTube/server/lib/local-actor.ts

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import { queue } from 'async'
import { remove } from 'fs-extra'
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import LRUCache from 'lru-cache'
import { join } from 'path'
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import { ActorModel } from '@server/models/actor/actor'
import { getLowercaseExtension } from '@shared/core-utils'
import { buildUUID } from '@shared/extra-utils'
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import { ActivityPubActorType, ActorImageType } from '@shared/models'
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import { retryTransactionWrapper } from '../helpers/database-utils'
import { processImage } from '../helpers/image-utils'
import { downloadImage } from '../helpers/requests'
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import { CONFIG } from '../initializers/config'
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import { ACTOR_IMAGES_SIZE, LRU_CACHE, QUEUE_CONCURRENCY, WEBSERVER } from '../initializers/constants'
import { sequelizeTypescript } from '../initializers/database'
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import { MAccountDefault, MActor, MChannelDefault } from '../types/models'
import { deleteActorImages, updateActorImages } from './activitypub/actors'
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import { sendUpdateActor } from './activitypub/send'
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function buildActorInstance (type: ActivityPubActorType, url: string, preferredUsername: string) {
return new ActorModel({
type,
url,
preferredUsername,
publicKey: null,
privateKey: null,
followersCount: 0,
followingCount: 0,
inboxUrl: url + '/inbox',
outboxUrl: url + '/outbox',
sharedInboxUrl: WEBSERVER.URL + '/inbox',
followersUrl: url + '/followers',
followingUrl: url + '/following'
}) as MActor
}
async function updateLocalActorImageFiles (
accountOrChannel: MAccountDefault | MChannelDefault,
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imagePhysicalFile: Express.Multer.File,
type: ActorImageType
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) {
const processImageSize = async (imageSize: { width: number, height: number }) => {
const extension = getLowercaseExtension(imagePhysicalFile.filename)
const imageName = buildUUID() + extension
const destination = join(CONFIG.STORAGE.ACTOR_IMAGES, imageName)
await processImage(imagePhysicalFile.path, destination, imageSize, true)
return {
imageName,
imageSize
}
}
const processedImages = await Promise.all(ACTOR_IMAGES_SIZE[type].map(processImageSize))
await remove(imagePhysicalFile.path)
return retryTransactionWrapper(() => sequelizeTypescript.transaction(async t => {
const actorImagesInfo = processedImages.map(({ imageName, imageSize }) => ({
name: imageName,
fileUrl: null,
height: imageSize.height,
width: imageSize.width,
onDisk: true
}))
const updatedActor = await updateActorImages(accountOrChannel.Actor, type, actorImagesInfo, t)
await updatedActor.save({ transaction: t })
await sendUpdateActor(accountOrChannel, t)
return type === ActorImageType.AVATAR
? updatedActor.Avatars
: updatedActor.Banners
}))
}
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async function deleteLocalActorImageFile (accountOrChannel: MAccountDefault | MChannelDefault, type: ActorImageType) {
return retryTransactionWrapper(() => {
return sequelizeTypescript.transaction(async t => {
const updatedActor = await deleteActorImages(accountOrChannel.Actor, type, t)
await updatedActor.save({ transaction: t })
await sendUpdateActor(accountOrChannel, t)
return updatedActor.Avatars
})
})
}
type DownloadImageQueueTask = {
fileUrl: string
filename: string
type: ActorImageType
size: typeof ACTOR_IMAGES_SIZE[ActorImageType][0]
}
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const downloadImageQueue = queue<DownloadImageQueueTask, Error>((task, cb) => {
downloadImage(task.fileUrl, CONFIG.STORAGE.ACTOR_IMAGES, task.filename, task.size)
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.then(() => cb())
.catch(err => cb(err))
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}, QUEUE_CONCURRENCY.ACTOR_PROCESS_IMAGE)
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function pushActorImageProcessInQueue (task: DownloadImageQueueTask) {
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return new Promise<void>((res, rej) => {
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downloadImageQueue.push(task, err => {
if (err) return rej(err)
return res()
})
})
}
// Unsafe so could returns paths that does not exist anymore
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const actorImagePathUnsafeCache = new LRUCache<string, string>({ max: LRU_CACHE.ACTOR_IMAGE_STATIC.MAX_SIZE })
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export {
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actorImagePathUnsafeCache,
updateLocalActorImageFiles,
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deleteLocalActorImageFile,
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pushActorImageProcessInQueue,
buildActorInstance
}