Files
omnivore/packages/api/src/utils/auth.ts
2022-07-25 15:14:01 -07:00

115 lines
2.8 KiB
TypeScript

import * as bcrypt from 'bcryptjs'
import { v4 as uuidv4 } from 'uuid'
import { Claims, ClaimsToSet } from '../resolvers/types'
import { getRepository } from '../entity/utils'
import { ApiKey } from '../entity/api_key'
import crypto from 'crypto'
import * as jwt from 'jsonwebtoken'
import { env } from '../env'
import express from 'express'
import { promisify } from 'util'
const signToken = promisify(jwt.sign)
export const hashPassword = async (password: string, salt = 10) => {
return bcrypt.hash(password, salt)
}
export const comparePassword = async (password: string, hash: string) => {
return bcrypt.compare(password, hash)
}
export const generateApiKey = (): string => {
// TODO: generate random string key
return uuidv4()
}
export const hashApiKey = (apiKey: string) => {
return crypto.createHash('sha256').update(apiKey).digest('hex')
}
export const claimsFromApiKey = async (key: string): Promise<Claims> => {
const hashedKey = hashApiKey(key)
const apiKey = await getRepository(ApiKey).findOne({
where: {
key: hashedKey,
},
relations: ['user'],
})
if (!apiKey) {
throw new Error('api key not found')
}
const iat = Math.floor(Date.now() / 1000)
const exp = Math.floor(new Date(apiKey.expiresAt).getTime() / 1000)
if (exp < iat) {
throw new Error('api key expired')
}
// update last used
await getRepository(ApiKey).update(apiKey.id, { usedAt: new Date() })
return {
uid: apiKey.user.id,
iat,
exp,
}
}
// verify jwt token first
// if valid then decode and return claims
// if expired then throw error
// if not valid then verify api key
export const getClaimsByToken = async (
token: string | undefined
): Promise<Claims | undefined> => {
let claims: Claims | undefined
if (!token) {
return undefined
}
try {
jwt.verify(token, env.server.jwtSecret) &&
(claims = jwt.decode(token) as Claims)
return claims
} catch (e) {
if (
e instanceof jwt.JsonWebTokenError &&
!(e instanceof jwt.TokenExpiredError)
) {
console.log(`not a jwt token, checking api key`, { token })
return claimsFromApiKey(token)
}
throw e
}
}
export const generateVerificationToken = (
userId: string,
expireInDays = 1
): string => {
const iat = Math.floor(Date.now() / 1000)
const exp = Math.floor(
new Date(Date.now() + 1000 * 60 * 60 * 24 * expireInDays).getTime() / 1000
)
return jwt.sign({ uid: userId, iat, exp }, env.server.jwtSecret)
}
export const setAuthInCookie = async (
claims: ClaimsToSet,
res: express.Response,
secret: string = env.server.jwtSecret
) => {
// set auth cookie in response header
const token = await signToken(claims, secret)
res.cookie('auth', token, {
httpOnly: true,
expires: new Date(new Date().getTime() + 365 * 24 * 60 * 60 * 1000),
})
}