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Code Issues 16 Actions Wiki Activity

Split up Auth Service into multiple files

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This commit is contained in:
Mutzi
2022-08-25 19:56:55 +02:00
parent 762c1c84c9
commit 6113478acd
6 changed files with 406 additions and 387 deletions
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387
src/services/auth.ts
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import {
BadRequestException,
ForbiddenException,
Injectable,
UnauthorizedException
} from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';
import { JWTToken, tfaTypes, User, UserRole } from '../entities';
import { LessThanOrEqual, Repository } from 'typeorm';
import * as argon2 from 'argon2';
import { PassportStrategy } from '@nestjs/passport';
import { Strategy as LocalStrategy } from 'passport-local';
import { ExtractJwt, Strategy as JWTStrategy } from 'passport-jwt';
import FileSystemService from './filesystem';
import * as jwt from 'jsonwebtoken';
import { createTransport } from 'nodemailer';
import * as notp from 'notp';
import { randomBytes } from 'crypto';
import { FastifyRequest } from 'fastify';
import axios from 'axios';
const GITLAB_ID =
'98bcbad78cb1f880d1d1de62291d70a791251a7bea077bfe7df111ef3c115760';
const GITLAB_SECRET =
'7ee01d2b204aff3a05f9d028f004d169b6d381ec873e195f314b3935fa150959';
const GITLAB_URL = 'https://gitlab.mattv.de';
const GITLAB_API_URL = 'https://ssh.gitlab.mattv.de';
const jwtSecret = 'CUM';
const mailAccount = createTransport({
host: 'mail.mattv.de',
port: 587,
secure: false,
auth: {
user: 'no-reply@mattv.de',
pass: 'noreplyLONGPASS123'
}
});
interface jwtPayload {
sub: number;
jti: number;
exp?: number;
iat?: number;
}
interface GitlabTokenResponse {
access_token: string;
token_type: string;
expires_in: number;
refresh_token: string;
created_at: number;
}
interface GitlabUserResponse {
username: string;
is_admin?: boolean;
}
@Injectable()
export class AuthService {
constructor(
@InjectRepository(User)
private userRepo: Repository<User>,
@InjectRepository(JWTToken)
private tokenRepo: Repository<JWTToken>,
private fsService: FileSystemService
) {}
generateTfaSecret(): string {
const set =
'0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz!@#$%^&*()<>?/[]{},.:;';
return randomBytes(32)
.map((b) =>
set.charCodeAt(Math.floor((b / 255.0) * (set.length - 1)))
)
.toString();
}
async getUser(userId: number): Promise<User | null> {
return this.userRepo.findOneBy({
id: userId
});
}
async findUser(username: string, gitlab: boolean): Promise<User | null> {
return this.userRepo.findOneBy({
name: username,
isGitlabUser: gitlab
});
}
async getToken(tokenId: number): Promise<JWTToken | null> {
return this.tokenRepo.findOneBy({
id: tokenId
});
}
async validateUser(username: string, pass: string): Promise<User | null> {
const user = await this.findUser(username, false);
if (!user)
throw new UnauthorizedException('Invalid username or password');
if (!(await argon2.verify(user.password, pass)))
throw new UnauthorizedException('Invalid username or password');
if (user.role == UserRole.DISABLED)
throw new UnauthorizedException('Account is disabled');
return user;
}
async cleanupTokens(): Promise<void> {
await this.tokenRepo.delete({
exp: LessThanOrEqual(Math.floor(Date.now() / 1000))
});
}
requiresTfa(user: User): boolean {
return user.tfaType != tfaTypes.NONE;
}
async verifyTfa(
user: User,
token: string,
type?: tfaTypes
): Promise<boolean> {
if (!type) type = user.tfaType;
const delta = notp.totp.verify(token, user.tfaSecret, {
window: 10
});
return (
delta &&
(type == tfaTypes.EMAIL ? delta.delta <= 0 : delta.delta == 0)
);
}
async sendTfaMail(user: User) {
await mailAccount.sendMail({
from: 'fileserver@mattv.de',
to: user.name,
subject: 'Fileserver - EMail 2fa code',
text: `Your code is: ${notp.totp.gen(
user.tfaSecret
)}\nIt is valid for 5 Minutes`
});
}
async setupTfa(user: User): Promise<string> {
if (user.tfaType != tfaTypes.NONE)
throw new BadRequestException(
'2 Factor authentication is already setup'
);
const secret = this.generateTfaSecret();
user.tfaSecret = secret;
await this.userRepo.save(user);
return secret;
}
async setTfaType(user: User, type: tfaTypes) {
user.tfaType = type;
await this.userRepo.save(user);
}
async login(req: Request, user: User) {
if (user.isGitlabUser && !(await this.verifyGitlabUser(req, user))) {
await this.revokeAll(user);
throw new UnauthorizedException('Invalid gitlab token');
}
const token = new JWTToken();
token.ownerId = user.id;
const db_token = await this.tokenRepo.save(token);
const payload: jwtPayload = {
sub: user.id,
jti: db_token.id
};
const jwtToken = jwt.sign(payload, jwtSecret, {
mutatePayload: true,
expiresIn: '1d'
});
db_token.exp = payload.exp;
await this.tokenRepo.save(db_token);
return jwtToken;
}
async singupInternal(user: User): Promise<User> {
const root = await this.fsService.generateRoot(user);
user.rootId = root.id;
return this.userRepo.save(user);
}
async singupGitlab(
info: GitlabUserResponse,
data: GitlabTokenResponse
): Promise<User> {
const user = new User();
user.name = info.username;
user.password = '';
user.isGitlabUser = true;
user.role = info.is_admin ? UserRole.ADMIN : UserRole.DISABLED;
return this.singupInternal(await this.setGitlabTokens(user, data));
}
async signup(username: string, password: string) {
if (await this.findUser(username, false))
throw new BadRequestException('User already exists');
const user = new User();
user.name = username;
user.password = await argon2.hash(password);
await this.singupInternal(await this.userRepo.save(user));
}
async revoke(token: JWTToken) {
await this.tokenRepo.delete({
id: token.id
});
}
async revokeAll(user: User) {
await this.tokenRepo.delete({
ownerId: user.id
});
}
async setGitlabTokens(
user: User,
data: GitlabTokenResponse
): Promise<User> {
user.gitlabAT = data.access_token;
user.gitlabRT = data.refresh_token;
return this.userRepo.save(user);
}
getGitlabRedirectUrl(req: Request): string {
const _req = req as unknown as FastifyRequest;
return `${_req.protocol}://${_req.hostname}/api/auth/gitlab_callback`;
}
getGitlabAuthUrl(req: Request): string {
const params = new URLSearchParams();
params.append('redirect_uri', this.getGitlabRedirectUrl(req));
params.append('response_type', 'code');
params.append('scope', 'read_user');
params.append('client_id', GITLAB_ID);
return `${GITLAB_URL}/oauth/authorize?${params.toString()}`;
}
async getGitlabUserFromCode(req: Request, code: string): Promise<User> {
const params = new URLSearchParams();
params.append('redirect_uri', this.getGitlabRedirectUrl(req));
params.append('client_id', GITLAB_ID);
params.append('client_secret', GITLAB_SECRET);
params.append('code', code);
params.append('grant_type', 'authorization_code');
const resp = await axios.post(
`${GITLAB_API_URL}/oauth/token?${params.toString()}`,
{}
);
const data: GitlabTokenResponse = resp.data;
const userInfoResp = await axios.get(`${GITLAB_API_URL}/api/v4/user`, {
headers: { Authorization: `Bearer ${data.access_token}` }
});
const userInfo: GitlabUserResponse = userInfoResp.data;
let user = await this.findUser(userInfo.username, true);
if (!user) user = await this.singupGitlab(userInfo, data);
else user = await this.setGitlabTokens(user, data);
return user;
}
async getGitlabUserInfo(
req: Request,
user: User
): Promise<GitlabUserResponse | null> {
try {
const userInfoResp = await axios.get(
`${GITLAB_API_URL}/api/v4/user`,
{
headers: { Authorization: `Bearer ${user.gitlabAT}` }
}
);
return userInfoResp.data;
} catch (e) {
return null;
}
}
async tryRefreshGitlabTokens(
req: Request,
user: User
): Promise<User | null> {
const params = new URLSearchParams();
params.append('redirect_uri', this.getGitlabRedirectUrl(req));
params.append('client_id', GITLAB_ID);
params.append('client_secret', GITLAB_SECRET);
params.append('refresh_token', user.gitlabRT);
params.append('grant_type', 'refresh_token');
try {
const resp = await axios.post(
`${GITLAB_API_URL}/oauth/token?${params.toString()}`,
{}
);
const data: GitlabTokenResponse = resp.data;
return this.setGitlabTokens(user, data);
} catch (e) {
return null;
}
}
async verifyGitlabUser(req: Request, user: User): Promise<boolean> {
let info = await this.getGitlabUserInfo(req, user);
if (!info) {
user = await this.tryRefreshGitlabTokens(req, user);
if (!user) return false;
info = await this.getGitlabUserInfo(req, user);
}
return info && info.username == user.name;
}
async deleteUser(user: User): Promise<void> {
await this.revokeAll(user);
await this.fsService.delete(await user.root, true);
await this.userRepo.remove(user);
}
async changePassword(
user: User,
oldPW: string,
newPw: string
): Promise<void> {
if (!(await argon2.verify(user.password, oldPW)))
throw new ForbiddenException('Old password is wrong');
user.password = await argon2.hash(newPw);
await this.revokeAll(await this.userRepo.save(user));
}
}
@Injectable()
export class AuthLocalService extends PassportStrategy(LocalStrategy) {
constructor(private authService: AuthService) {
super();
}
async validate(username: string, pass: string) {
const user = await this.authService.validateUser(username, pass);
if (!user)
throw new UnauthorizedException('Invalid username or password');
return user;
}
}
@Injectable()
export class AuthJwtService extends PassportStrategy(JWTStrategy) {
constructor(private authService: AuthService) {
super({
jwtFromRequest: ExtractJwt.fromExtractors([
ExtractJwt.fromAuthHeaderAsBearerToken(),
ExtractJwt.fromBodyField('jwtToken')
]),
ignoreExpiration: false,
passReqToCallback: true,
secretOrKey: jwtSecret
});
}
async validate(req: Request, payload: jwtPayload) {
await this.authService.cleanupTokens();
const token = await this.authService.getToken(payload.jti);
if (!token)
throw new UnauthorizedException(
'Invalid token, please log in again'
);
const user = await this.authService.getUser(token.ownerId);
if (!user || user.id != payload.sub)
throw new UnauthorizedException(
'Invalid token, please log in again'
);
if (
user.isGitlabUser &&
!(await this.authService.verifyGitlabUser(req, user))
) {
await this.authService.revokeAll(user);
throw new UnauthorizedException('Invalid gitlab token');
}
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore
req.token = token;
return user;
}
}

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src/services/auth/base.ts Normal file
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import {
BadRequestException,
Injectable,
UnauthorizedException
} from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';
import { JWTToken, User, UserRole } from '../../entities';
import { LessThanOrEqual, Repository } from 'typeorm';
import * as argon2 from 'argon2';
import FileSystemService from '../filesystem';
import * as jwt from 'jsonwebtoken';
export const jwtSecret = 'CUM';
export interface jwtPayload {
sub: number;
jti: number;
exp?: number;
iat?: number;
}
@Injectable()
export default class BaseAuthService {
constructor(
@InjectRepository(User)
protected userRepo: Repository<User>,
@InjectRepository(JWTToken)
protected tokenRepo: Repository<JWTToken>,
protected fsService: FileSystemService
) {}
async getUser(userId: number): Promise<User | null> {
return this.userRepo.findOneBy({
id: userId
});
}
async findUser(username: string, gitlab: boolean): Promise<User | null> {
return this.userRepo.findOneBy({
name: username,
isGitlabUser: gitlab
});
}
async getToken(tokenId: number): Promise<JWTToken | null> {
return this.tokenRepo.findOneBy({
id: tokenId
});
}
async validateUser(username: string, pass: string): Promise<User | null> {
const user = await this.findUser(username, false);
if (!user)
throw new UnauthorizedException('Invalid username or password');
if (!(await argon2.verify(user.password, pass)))
throw new UnauthorizedException('Invalid username or password');
if (user.role == UserRole.DISABLED)
throw new UnauthorizedException('Account is disabled');
return user;
}
async cleanupTokens(): Promise<void> {
await this.tokenRepo.delete({
exp: LessThanOrEqual(Math.floor(Date.now() / 1000))
});
}
async login(req: Request, user: User) {
const token = new JWTToken();
token.ownerId = user.id;
const db_token = await this.tokenRepo.save(token);
const payload: jwtPayload = {
sub: user.id,
jti: db_token.id
};
const jwtToken = jwt.sign(payload, jwtSecret, {
mutatePayload: true,
expiresIn: '1d'
});
db_token.exp = payload.exp;
await this.tokenRepo.save(db_token);
return jwtToken;
}
async singupInternal(user: User): Promise<User> {
const root = await this.fsService.generateRoot(user);
user.rootId = root.id;
return this.userRepo.save(user);
}
async signup(username: string, password: string) {
if (await this.findUser(username, false))
throw new BadRequestException('User already exists');
const user = new User();
user.name = username;
user.password = await argon2.hash(password);
await this.singupInternal(await this.userRepo.save(user));
}
async revoke(token: JWTToken) {
await this.tokenRepo.delete({
id: token.id
});
}
async revokeAll(user: User) {
await this.tokenRepo.delete({
ownerId: user.id
});
}
}

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src/services/auth/gitlab.ts Normal file
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import { User, UserRole } from '../../entities';
import { FastifyRequest } from 'fastify';
import axios from 'axios';
import * as argon2 from 'argon2';
import { ForbiddenException, UnauthorizedException } from '@nestjs/common';
import TfaAuthService from './tfa';
const GITLAB_ID =
'98bcbad78cb1f880d1d1de62291d70a791251a7bea077bfe7df111ef3c115760';
const GITLAB_SECRET =
'7ee01d2b204aff3a05f9d028f004d169b6d381ec873e195f314b3935fa150959';
const GITLAB_URL = 'https://gitlab.mattv.de';
const GITLAB_API_URL = 'https://ssh.gitlab.mattv.de';
interface GitlabTokenResponse {
access_token: string;
token_type: string;
expires_in: number;
refresh_token: string;
created_at: number;
}
interface GitlabUserResponse {
username: string;
is_admin?: boolean;
}
export default class GitlabAuthService extends TfaAuthService {
async login(req: Request, user: User) {
if (user.isGitlabUser && !(await this.verifyGitlabUser(req, user))) {
await this.revokeAll(user);
throw new UnauthorizedException('Invalid gitlab token');
}
return super.login(req, user);
}
async singupGitlab(
info: GitlabUserResponse,
data: GitlabTokenResponse
): Promise<User> {
const user = new User();
user.name = info.username;
user.password = '';
user.isGitlabUser = true;
user.role = info.is_admin ? UserRole.ADMIN : UserRole.DISABLED;
return this.singupInternal(await this.setGitlabTokens(user, data));
}
async setGitlabTokens(
user: User,
data: GitlabTokenResponse
): Promise<User> {
user.gitlabAT = data.access_token;
user.gitlabRT = data.refresh_token;
return this.userRepo.save(user);
}
getGitlabRedirectUrl(req: Request): string {
const _req = req as unknown as FastifyRequest;
return `${_req.protocol}://${_req.hostname}/api/auth/gitlab_callback`;
}
getGitlabAuthUrl(req: Request): string {
const params = new URLSearchParams();
params.append('redirect_uri', this.getGitlabRedirectUrl(req));
params.append('response_type', 'code');
params.append('scope', 'read_user');
params.append('client_id', GITLAB_ID);
return `${GITLAB_URL}/oauth/authorize?${params.toString()}`;
}
async getGitlabUserFromCode(req: Request, code: string): Promise<User> {
const params = new URLSearchParams();
params.append('redirect_uri', this.getGitlabRedirectUrl(req));
params.append('client_id', GITLAB_ID);
params.append('client_secret', GITLAB_SECRET);
params.append('code', code);
params.append('grant_type', 'authorization_code');
const resp = await axios.post(
`${GITLAB_API_URL}/oauth/token?${params.toString()}`,
{}
);
const data: GitlabTokenResponse = resp.data;
const userInfoResp = await axios.get(`${GITLAB_API_URL}/api/v4/user`, {
headers: { Authorization: `Bearer ${data.access_token}` }
});
const userInfo: GitlabUserResponse = userInfoResp.data;
let user = await this.findUser(userInfo.username, true);
if (!user) user = await this.singupGitlab(userInfo, data);
else user = await this.setGitlabTokens(user, data);
return user;
}
async getGitlabUserInfo(
req: Request,
user: User
): Promise<GitlabUserResponse | null> {
try {
const userInfoResp = await axios.get(
`${GITLAB_API_URL}/api/v4/user`,
{
headers: { Authorization: `Bearer ${user.gitlabAT}` }
}
);
return userInfoResp.data;
} catch (e) {
return null;
}
}
async tryRefreshGitlabTokens(
req: Request,
user: User
): Promise<User | null> {
const params = new URLSearchParams();
params.append('redirect_uri', this.getGitlabRedirectUrl(req));
params.append('client_id', GITLAB_ID);
params.append('client_secret', GITLAB_SECRET);
params.append('refresh_token', user.gitlabRT);
params.append('grant_type', 'refresh_token');
try {
const resp = await axios.post(
`${GITLAB_API_URL}/oauth/token?${params.toString()}`,
{}
);
const data: GitlabTokenResponse = resp.data;
return this.setGitlabTokens(user, data);
} catch (e) {
return null;
}
}
async verifyGitlabUser(req: Request, user: User): Promise<boolean> {
let info = await this.getGitlabUserInfo(req, user);
if (!info) {
user = await this.tryRefreshGitlabTokens(req, user);
if (!user) return false;
info = await this.getGitlabUserInfo(req, user);
}
return info && info.username == user.name;
}
async deleteUser(user: User): Promise<void> {
await this.revokeAll(user);
await this.fsService.delete(await user.root, true);
await this.userRepo.remove(user);
}
async changePassword(
user: User,
oldPW: string,
newPw: string
): Promise<void> {
if (!(await argon2.verify(user.password, oldPW)))
throw new ForbiddenException('Old password is wrong');
user.password = await argon2.hash(newPw);
await this.revokeAll(await this.userRepo.save(user));
}
}

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src/services/auth/index.ts Normal file
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export { default as AuthService } from './gitlab';
export * from './strategies';

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src/services/auth/strategies.ts Normal file
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import { Injectable, UnauthorizedException } from '@nestjs/common';
import { PassportStrategy } from '@nestjs/passport';
import { Strategy as LocalStrategy } from 'passport-local';
import { ExtractJwt, Strategy as JWTStrategy } from 'passport-jwt';
import AuthService from './gitlab';
import { jwtPayload, jwtSecret } from './base';
@Injectable()
export class AuthLocalService extends PassportStrategy(LocalStrategy) {
constructor(private authService: AuthService) {
super();
}
async validate(username: string, pass: string) {
const user = await this.authService.validateUser(username, pass);
if (!user)
throw new UnauthorizedException('Invalid username or password');
return user;
}
}
@Injectable()
export class AuthJwtService extends PassportStrategy(JWTStrategy) {
constructor(private authService: AuthService) {
super({
jwtFromRequest: ExtractJwt.fromExtractors([
ExtractJwt.fromAuthHeaderAsBearerToken(),
ExtractJwt.fromBodyField('jwtToken')
]),
ignoreExpiration: false,
passReqToCallback: true,
secretOrKey: jwtSecret
});
}
async validate(req: Request, payload: jwtPayload) {
await this.authService.cleanupTokens();
const token = await this.authService.getToken(payload.jti);
if (!token)
throw new UnauthorizedException(
'Invalid token, please log in again'
);
const user = await this.authService.getUser(token.ownerId);
if (!user || user.id != payload.sub)
throw new UnauthorizedException(
'Invalid token, please log in again'
);
if (
user.isGitlabUser &&
!(await this.authService.verifyGitlabUser(req, user))
) {
await this.authService.revokeAll(user);
throw new UnauthorizedException('Invalid gitlab token');
}
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore
req.token = token;
return user;
}
}

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src/services/auth/tfa.ts Normal file
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import { tfaTypes, User } from '../../entities';
import { BadRequestException } from '@nestjs/common';
import BaseAuthService from './base';
import { randomBytes } from 'crypto';
import * as notp from 'notp';
import { createTransport } from 'nodemailer';
const mailAccount = createTransport({
host: 'mail.mattv.de',
port: 587,
secure: false,
auth: {
user: 'no-reply@mattv.de',
pass: 'noreplyLONGPASS123'
}
});
export default class TfaAuthService extends BaseAuthService {
generateTfaSecret(): string {
const set =
'0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz!@#$%^&*()<>?/[]{},.:;';
return randomBytes(32)
.map((b) =>
set.charCodeAt(Math.floor((b / 255.0) * (set.length - 1)))
)
.toString();
}
requiresTfa(user: User): boolean {
return user.tfaType != tfaTypes.NONE;
}
async verifyTfa(
user: User,
token: string,
type?: tfaTypes
): Promise<boolean> {
if (!type) type = user.tfaType;
const delta = notp.totp.verify(token, user.tfaSecret, {
window: 10
});
return (
delta &&
(type == tfaTypes.EMAIL ? delta.delta <= 0 : delta.delta == 0)
);
}
async sendTfaMail(user: User) {
await mailAccount.sendMail({
from: 'fileserver@mattv.de',
to: user.name,
subject: 'Fileserver - EMail 2fa code',
text: `Your code is: ${notp.totp.gen(
user.tfaSecret
)}\nIt is valid for 5 Minutes`
});
}
async setupTfa(user: User): Promise<string> {
if (user.tfaType != tfaTypes.NONE)
throw new BadRequestException(
'2 Factor authentication is already setup'
);
const secret = this.generateTfaSecret();
user.tfaSecret = secret;
await this.userRepo.save(user);
return secret;
}
async setTfaType(user: User, type: tfaTypes) {
user.tfaType = type;
await this.userRepo.save(user);
}
}