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/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { randomUUID } from 'node:crypto';
import { Inject, Injectable } from '@nestjs/common';
import { DataSource, IsNull } from 'typeorm';
import bcrypt from 'bcryptjs';
import { MiLocalUser, MiUser } from '@/models/User.js';
import { MiSystemAccount, MiUsedUsername, MiUserKeypair, MiUserProfile, type UsersRepository, type SystemAccountsRepository } from '@/models/_.js';
import type { MiMeta, UserProfilesRepository } from '@/models/_.js';
import { MemoryKVCache } from '@/misc/cache.js';
import { DI } from '@/di-symbols.js';
import { bindThis } from '@/decorators.js';
import { generateNativeUserToken } from '@/misc/token.js';
import { IdService } from '@/core/IdService.js';
import { genRsaKeyPair } from '@/misc/gen-key-pair.js';
export const SYSTEM_ACCOUNT_TYPES = ['actor', 'relay', 'proxy'] as const;
@Injectable()
export class SystemAccountService {
private cache: MemoryKVCache<MiLocalUser>;
constructor(
@Inject(DI.db)
private db: DataSource,
@Inject(DI.meta)
private meta: MiMeta,
@Inject(DI.systemAccountsRepository)
private systemAccountsRepository: SystemAccountsRepository,
@Inject(DI.usersRepository)
private usersRepository: UsersRepository,
@Inject(DI.userProfilesRepository)
private userProfilesRepository: UserProfilesRepository,
private idService: IdService,
) {
this.cache = new MemoryKVCache<MiLocalUser>(1000 * 60 * 10); // 10m
}
@bindThis
public async list(): Promise<MiSystemAccount[]> {
const accounts = await this.systemAccountsRepository.findBy({});
return accounts;
}
@bindThis
public async fetch(type: typeof SYSTEM_ACCOUNT_TYPES[number]): Promise<MiLocalUser> {
const cached = this.cache.get(type);
if (cached) return cached;
const systemAccount = await this.systemAccountsRepository.findOne({
where: { type: type },
relations: ['user'],
});
if (systemAccount) {
this.cache.set(type, systemAccount.user as MiLocalUser);
return systemAccount.user as MiLocalUser;
} else {
const created = await this.createCorrespondingUser(type, {
username: `system.${type}`, // NOTE: (できれば避けたいが) . が含まれるかどうかでシステムアカウントかどうかを判定している処理もあるので変えないように
name: this.meta.name,
});
this.cache.set(type, created);
return created;
}
}
@bindThis
private async createCorrespondingUser(type: typeof SYSTEM_ACCOUNT_TYPES[number], extra: {
username: MiUser['username'];
name?: MiUser['name'];
}): Promise<MiLocalUser> {
const password = randomUUID();
// Generate hash of password
const salt = await bcrypt.genSalt(8);
const hash = await bcrypt.hash(password, salt);
// Generate secret
const secret = generateNativeUserToken();
const keyPair = await genRsaKeyPair();
let account!: MiUser;
// Start transaction
await this.db.transaction(async transactionalEntityManager => {
const exist = await transactionalEntityManager.findOneBy(MiUser, {
usernameLower: extra.username.toLowerCase(),
host: IsNull(),
});
if (exist) {
account = exist;
return;
}
account = await transactionalEntityManager.insert(MiUser, {
id: this.idService.gen(),
username: extra.username,
usernameLower: extra.username.toLowerCase(),
host: null,
token: secret,
isLocked: true,
isExplorable: false,
isBot: true,
name: extra.name,
}).then(x => transactionalEntityManager.findOneByOrFail(MiUser, x.identifiers[0]));
await transactionalEntityManager.insert(MiUserKeypair, {
publicKey: keyPair.publicKey,
privateKey: keyPair.privateKey,
userId: account.id,
});
await transactionalEntityManager.insert(MiUserProfile, {
userId: account.id,
autoAcceptFollowed: false,
password: hash,
});
await transactionalEntityManager.insert(MiUsedUsername, {
createdAt: new Date(),
username: extra.username.toLowerCase(),
});
await transactionalEntityManager.insert(MiSystemAccount, {
id: this.idService.gen(),
userId: account.id,
type: type,
});
});
return account as MiLocalUser;
}
@bindThis
public async updateCorrespondingUserProfile(type: typeof SYSTEM_ACCOUNT_TYPES[number], extra: {
name?: string;
description?: MiUserProfile['description'];
}): Promise<MiLocalUser> {
const user = await this.fetch(type);
const updates = {} as Partial<MiUser>;
if (extra.name !== undefined) updates.name = extra.name;
if (Object.keys(updates).length > 0) {
await this.usersRepository.update(user.id, updates);
}
const profileUpdates = {} as Partial<MiUserProfile>;
if (extra.description !== undefined) profileUpdates.description = extra.description;
if (Object.keys(profileUpdates).length > 0) {
await this.userProfilesRepository.update(user.id, profileUpdates);
}
const updated = await this.usersRepository.findOneByOrFail({ id: user.id }) as MiLocalUser;
this.cache.set(type, updated);
return updated;
}
}
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