mirror of https://github.com/Chocobozzz/PeerTube
45 lines
1.5 KiB
TypeScript
45 lines
1.5 KiB
TypeScript
import { createWriteStream, remove } from 'fs-extra'
|
|
import { logger } from '../../helpers/logger'
|
|
import { VideoModel } from '../../models/video/video'
|
|
import { fetchRemoteVideoStaticFile } from '../activitypub'
|
|
import * as memoizee from 'memoizee'
|
|
|
|
type GetFilePathResult = { isOwned: boolean, path: string } | undefined
|
|
|
|
export abstract class AbstractVideoStaticFileCache <T> {
|
|
|
|
getFilePath: (params: T) => Promise<GetFilePathResult>
|
|
|
|
abstract getFilePathImpl (params: T): Promise<GetFilePathResult>
|
|
|
|
// Load and save the remote file, then return the local path from filesystem
|
|
protected abstract loadRemoteFile (key: string): Promise<GetFilePathResult>
|
|
|
|
init (max: number, maxAge: number) {
|
|
this.getFilePath = memoizee(this.getFilePathImpl, {
|
|
maxAge,
|
|
max,
|
|
promise: true,
|
|
dispose: (result: GetFilePathResult) => {
|
|
if (result.isOwned !== true) {
|
|
remove(result.path)
|
|
.then(() => logger.debug('%s removed from %s', result.path, this.constructor.name))
|
|
.catch(err => logger.error('Cannot remove %s from cache %s.', result.path, this.constructor.name, { err }))
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
protected saveRemoteVideoFileAndReturnPath (video: VideoModel, remoteStaticPath: string, destPath: string) {
|
|
return new Promise<string>((res, rej) => {
|
|
const req = fetchRemoteVideoStaticFile(video, remoteStaticPath, rej)
|
|
|
|
const stream = createWriteStream(destPath)
|
|
|
|
req.pipe(stream)
|
|
.on('error', (err) => rej(err))
|
|
.on('finish', () => res(destPath))
|
|
})
|
|
}
|
|
}
|