なんかもうめっちゃ変えた

packages/backend/src/core/SignupService.ts

@@ -0,0 +1,141 @@
+import { generateKeyPair } from 'node:crypto';
+import { Inject, Injectable } from '@nestjs/common';
+import bcrypt from 'bcryptjs';
+import { DataSource, IsNull } from 'typeorm';
+import { DI } from '@/di-symbols.js';
+import { UsedUsernamesRepository } from '@/models/index.js';
+import { Config } from '@/config.js';
+import { User } from '@/models/entities/User.js';
+import { UserProfile } from '@/models/entities/UserProfile.js';
+import { IdService } from '@/core/IdService.js';
+import { UserKeypair } from '@/models/entities/UserKeypair.js';
+import { UsedUsername } from '@/models/entities/UsedUsername.js';
+import generateUserToken from '@/misc/generate-native-user-token.js';
+import UsersChart from './chart/charts/users.js';
+import { UserEntityService } from './entities/UserEntityService.js';
+import { UtilityService } from './UtilityService.js';
+
+@Injectable()
+export class SignupService {
+	constructor(
+		@Inject(DI.db)
+		private db: DataSource,
+
+		@Inject(DI.config)
+		private config: Config,
+
+		@Inject(DI.usersRepository)
+		private usersRepository: UsersRepository,
+
+		@Inject(DI.usedUsernamesRepository)
+		private usedUsernamesRepository: UsedUsernamesRepository,
+
+		private utilityService: UtilityService,
+		private userEntityService: UserEntityService,
+		private idService: IdService,
+		private usersChart: UsersChart,
+	) {
+	}
+
+	public async signup(opts: {
+		username: User['username'];
+		password?: string | null;
+		passwordHash?: UserProfile['password'] | null;
+		host?: string | null;
+	}) {
+		const { username, password, passwordHash, host } = opts;
+		let hash = passwordHash;
+	
+		// Validate username
+		if (!this.userEntityService.validateLocalUsername(username)) {
+			throw new Error('INVALID_USERNAME');
+		}
+	
+		if (password != null && passwordHash == null) {
+			// Validate password
+			if (!this.userEntityService.validatePassword(password)) {
+				throw new Error('INVALID_PASSWORD');
+			}
+	
+			// Generate hash of password
+			const salt = await bcrypt.genSalt(8);
+			hash = await bcrypt.hash(password, salt);
+		}
+	
+		// Generate secret
+		const secret = generateUserToken();
+	
+		// Check username duplication
+		if (await this.usersRepository.findOneBy({ usernameLower: username.toLowerCase(), host: IsNull() })) {
+			throw new Error('DUPLICATED_USERNAME');
+		}
+	
+		// Check deleted username duplication
+		if (await this.usedUsernamesRepository.findOneBy({ username: username.toLowerCase() })) {
+			throw new Error('USED_USERNAME');
+		}
+	
+		const keyPair = await new Promise<string[]>((res, rej) =>
+			generateKeyPair('rsa', {
+				modulusLength: 4096,
+				publicKeyEncoding: {
+					type: 'spki',
+					format: 'pem',
+				},
+				privateKeyEncoding: {
+					type: 'pkcs8',
+					format: 'pem',
+					cipher: undefined,
+					passphrase: undefined,
+				},
+			} as any, (err, publicKey, privateKey) =>
+				err ? rej(err) : res([publicKey, privateKey]),
+			));
+	
+		let account!: User;
+	
+		// Start transaction
+		await this.db.transaction(async transactionalEntityManager => {
+			const exist = await transactionalEntityManager.findOneBy(User, {
+				usernameLower: username.toLowerCase(),
+				host: IsNull(),
+			});
+	
+			if (exist) throw new Error(' the username is already used');
+	
+			account = await transactionalEntityManager.save(new User({
+				id: this.idService.genId(),
+				createdAt: new Date(),
+				username: username,
+				usernameLower: username.toLowerCase(),
+				host: this.utilityService.toPunyNullable(host),
+				token: secret,
+				isAdmin: (await this.usersRepository.countBy({
+					host: IsNull(),
+				})) === 0,
+			}));
+	
+			await transactionalEntityManager.save(new UserKeypair({
+				publicKey: keyPair[0],
+				privateKey: keyPair[1],
+				userId: account.id,
+			}));
+	
+			await transactionalEntityManager.save(new UserProfile({
+				userId: account.id,
+				autoAcceptFollowed: true,
+				password: hash,
+			}));
+	
+			await transactionalEntityManager.save(new UsedUsername({
+				createdAt: new Date(),
+				username: username.toLowerCase(),
+			}));
+		});
+	
+		this.usersChart.update(account, true);
+	
+		return { account, secret };
+	}
+}
+