Sharkey/packages/backend/src/core/UserKeypairService.ts

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/*
* SPDX-FileCopyrightText: syuilo and other misskey contributors
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { Inject, Injectable, OnApplicationShutdown } from '@nestjs/common';
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import * as Redis from 'ioredis';
import type { MiUser } from '@/models/entities/User.js';
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import type { UserKeypairsRepository } from '@/models/index.js';
import { RedisKVCache } from '@/misc/cache.js';
import type { MiUserKeypair } from '@/models/entities/UserKeypair.js';
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import { DI } from '@/di-symbols.js';
import { bindThis } from '@/decorators.js';
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@Injectable()
export class UserKeypairService implements OnApplicationShutdown {
private cache: RedisKVCache<MiUserKeypair>;
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constructor(
@Inject(DI.redis)
private redisClient: Redis.Redis,
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@Inject(DI.userKeypairsRepository)
private userKeypairsRepository: UserKeypairsRepository,
) {
this.cache = new RedisKVCache<MiUserKeypair>(this.redisClient, 'userKeypair', {
lifetime: 1000 * 60 * 60 * 24, // 24h
memoryCacheLifetime: Infinity,
fetcher: (key) => this.userKeypairsRepository.findOneByOrFail({ userId: key }),
toRedisConverter: (value) => JSON.stringify(value),
fromRedisConverter: (value) => JSON.parse(value),
});
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}
@bindThis
public async getUserKeypair(userId: MiUser['id']): Promise<MiUserKeypair> {
return await this.cache.fetch(userId);
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}
@bindThis
public dispose(): void {
this.cache.dispose();
}
@bindThis
public onApplicationShutdown(signal?: string | undefined): void {
this.dispose();
}
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}