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import * as LRUCache from 'lru-cache'
import { MOAuthTokenUser } from '@server/types/models'
import { LRU_CACHE } from '../../initializers/constants'
export class TokensCache {
private static instance: TokensCache
private readonly accessTokenCache = new LRUCache<string, MOAuthTokenUser>({ max: LRU_CACHE.USER_TOKENS.MAX_SIZE })
private readonly userHavingToken = new LRUCache<number, string>({ max: LRU_CACHE.USER_TOKENS.MAX_SIZE })
private constructor () { }
static get Instance () {
return this.instance || (this.instance = new this())
}
hasToken (token: string) {
return this.accessTokenCache.has(token)
}
getByToken (token: string) {
return this.accessTokenCache.get(token)
}
setToken (token: MOAuthTokenUser) {
this.accessTokenCache.set(token.accessToken, token)
this.userHavingToken.set(token.userId, token.accessToken)
}
deleteUserToken (userId: number) {
this.clearCacheByUserId(userId)
}
clearCacheByUserId (userId: number) {
const token = this.userHavingToken.get(userId)
if (token !== undefined) {
this.accessTokenCache.del(token)
this.userHavingToken.del(userId)
}
}
clearCacheByToken (token: string) {
const tokenModel = this.accessTokenCache.get(token)
if (tokenModel !== undefined) {
this.userHavingToken.del(tokenModel.userId)
this.accessTokenCache.del(token)
}
}
}
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