middlewares/oauth.ts

   1 import * as express from 'express'
   2 import { Socket } from 'socket.io'
   3 import { oAuthServer } from '@server/lib/auth'
   4 import { logger } from '../helpers/logger'
   5 import { getAccessToken } from '../lib/oauth-model'
   6 import { HttpStatusCode } from '../../shared/core-utils/miscs/http-error-codes'
   7
   8 function authenticate (req: express.Request, res: express.Response, next: express.NextFunction, authenticateInQuery = false) {
   9   const options = authenticateInQuery ? { allowBearerTokensInQueryString: true } : {}
  10
  11   oAuthServer.authenticate(options)(req, res, err => {
  12     if (err) {
  13       logger.warn('Cannot authenticate.', { err })
  14
  15       return res.status(err.status)
  16         .json({
  17           error: 'Token is invalid.',
  18           code: err.name
  19         })
  20         .end()
  21     }
  22
  23     res.locals.authenticated = true
  24
  25     return next()
  26   })
  27 }
  28
  29 function authenticateSocket (socket: Socket, next: (err?: any) => void) {
  30   const accessToken = socket.handshake.query['accessToken']
  31
  32   logger.debug('Checking socket access token %s.', accessToken)
  33
  34   if (!accessToken) return next(new Error('No access token provided'))
  35
  36   getAccessToken(accessToken)
  37     .then(tokenDB => {
  38       const now = new Date()
  39
  40       if (!tokenDB || tokenDB.accessTokenExpiresAt < now || tokenDB.refreshTokenExpiresAt < now) {
  41         return next(new Error('Invalid access token.'))
  42       }
  43
  44       socket.handshake.query['user'] = tokenDB.User
  45
  46       return next()
  47     })
  48     .catch(err => logger.error('Cannot get access token.', { err }))
  49 }
  50
  51 function authenticatePromiseIfNeeded (req: express.Request, res: express.Response, authenticateInQuery = false) {
  52   return new Promise(resolve => {
  53     // Already authenticated? (or tried to)
  54     if (res.locals.oauth?.token.User) return resolve()
  55
  56     if (res.locals.authenticated === false) return res.sendStatus(HttpStatusCode.UNAUTHORIZED_401)
  57
  58     authenticate(req, res, () => resolve(), authenticateInQuery)
  59   })
  60 }
  61
  62 function optionalAuthenticate (req: express.Request, res: express.Response, next: express.NextFunction) {
  63   if (req.header('authorization')) return authenticate(req, res, next)
  64
  65   res.locals.authenticated = false
  66
  67   return next()
  68 }
  69
  70 // ---------------------------------------------------------------------------
  71
  72 export {
  73   authenticate,
  74   authenticateSocket,
  75   authenticatePromiseIfNeeded,
  76   optionalAuthenticate
  77 }