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peertube/server/core/lib/video-tokens-manager.ts
2023-10-04 15:13:25 +02:00

78 lines
2 KiB
TypeScript

import { LRUCache } from 'lru-cache'
import { LRU_CACHE } from '@server/initializers/constants.js'
import { MUserAccountUrl } from '@server/types/models/index.js'
import { pick } from '@peertube/peertube-core-utils'
import { buildUUID } from '@peertube/peertube-node-utils'
// ---------------------------------------------------------------------------
// Create temporary tokens that can be used as URL query parameters to access video static files
// ---------------------------------------------------------------------------
class VideoTokensManager {
private static instance: VideoTokensManager
private readonly lruCache = new LRUCache<string, { videoUUID: string, user?: MUserAccountUrl }>({
max: LRU_CACHE.VIDEO_TOKENS.MAX_SIZE,
ttl: LRU_CACHE.VIDEO_TOKENS.TTL
})
private constructor () {}
createForAuthUser (options: {
user: MUserAccountUrl
videoUUID: string
}) {
const { token, expires } = this.generateVideoToken()
this.lruCache.set(token, pick(options, [ 'user', 'videoUUID' ]))
return { token, expires }
}
createForPasswordProtectedVideo (options: {
videoUUID: string
}) {
const { token, expires } = this.generateVideoToken()
this.lruCache.set(token, pick(options, [ 'videoUUID' ]))
return { token, expires }
}
hasToken (options: {
token: string
videoUUID: string
}) {
const value = this.lruCache.get(options.token)
if (!value) return false
return value.videoUUID === options.videoUUID
}
getUserFromToken (options: {
token: string
}) {
const value = this.lruCache.get(options.token)
if (!value) return undefined
return value.user
}
static get Instance () {
return this.instance || (this.instance = new this())
}
private generateVideoToken () {
const token = buildUUID()
const expires = new Date(new Date().getTime() + LRU_CACHE.VIDEO_TOKENS.TTL)
return { token, expires }
}
}
// ---------------------------------------------------------------------------
export {
VideoTokensManager
}