75 lines
2.5 KiB
TypeScript
75 lines
2.5 KiB
TypeScript
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import { Inject, Injectable } from '@nestjs/common';
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import Redis from 'ioredis';
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import { UsersRepository } from '@/models/index.js';
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import { Cache } from '@/misc/cache.js';
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import type { CacheableLocalUser, CacheableUser, ILocalUser } from '@/models/entities/User.js';
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import { DI } from '@/di-symbols.js';
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import { UserEntityService } from './entities/UserEntityService.js';
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import type { OnApplicationShutdown } from '@nestjs/common';
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@Injectable()
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export class UserCacheService implements OnApplicationShutdown {
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public userByIdCache: Cache<CacheableUser>;
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public localUserByNativeTokenCache: Cache<CacheableLocalUser | null>;
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public localUserByIdCache: Cache<CacheableLocalUser>;
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public uriPersonCache: Cache<CacheableUser | null>;
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constructor(
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@Inject(DI.redisSubscriber)
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private redisSubscriber: Redis.Redis,
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@Inject(DI.usersRepository)
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private usersRepository: UsersRepository,
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private userEntityService: UserEntityService,
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) {
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this.onMessage = this.onMessage.bind(this);
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this.userByIdCache = new Cache<CacheableUser>(Infinity);
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this.localUserByNativeTokenCache = new Cache<CacheableLocalUser | null>(Infinity);
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this.localUserByIdCache = new Cache<CacheableLocalUser>(Infinity);
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this.uriPersonCache = new Cache<CacheableUser | null>(Infinity);
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this.redisSubscriber.on('message', this.onMessage);
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}
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private async onMessage(_, data) {
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const obj = JSON.parse(data);
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if (obj.channel === 'internal') {
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const { type, body } = obj.message;
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switch (type) {
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case 'userChangeSuspendedState':
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case 'userChangeSilencedState':
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case 'userChangeModeratorState':
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case 'remoteUserUpdated': {
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const user = await this.usersRepository.findOneByOrFail({ id: body.id });
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this.userByIdCache.set(user.id, user);
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for (const [k, v] of this.uriPersonCache.cache.entries()) {
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if (v.value?.id === user.id) {
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this.uriPersonCache.set(k, user);
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}
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}
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if (this.userEntityService.isLocalUser(user)) {
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this.localUserByNativeTokenCache.set(user.token, user);
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this.localUserByIdCache.set(user.id, user);
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}
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break;
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}
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case 'userTokenRegenerated': {
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const user = await this.usersRepository.findOneByOrFail({ id: body.id }) as ILocalUser;
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this.localUserByNativeTokenCache.delete(body.oldToken);
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this.localUserByNativeTokenCache.set(body.newToken, user);
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break;
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}
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default:
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break;
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}
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}
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}
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public onApplicationShutdown(signal?: string | undefined) {
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this.redisSubscriber.off('message', this.onMessage);
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}
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}
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