server/middlewares/oauth.ts

   1 import * as express from 'express'
   2 import { logger } from '../helpers/logger'
   3 import { Socket } from 'socket.io'
   4 import { getAccessToken } from '../lib/oauth-model'
   5 import { oAuthServer } from '@server/lib/auth'
   6
   7 function authenticate (req: express.Request, res: express.Response, next: express.NextFunction, authenticateInQuery = false) {
   8   const options = authenticateInQuery ? { allowBearerTokensInQueryString: true } : {}
   9
  10   oAuthServer.authenticate(options)(req, res, err => {
  11     if (err) {
  12       logger.warn('Cannot authenticate.', { err })
  13
  14       return res.status(err.status)
  15         .json({
  16           error: 'Token is invalid.',
  17           code: err.name
  18         })
  19         .end()
  20     }
  21
  22     return next()
  23   })
  24 }
  25
  26 function authenticateSocket (socket: Socket, next: (err?: any) => void) {
  27   const accessToken = socket.handshake.query.accessToken
  28
  29   logger.debug('Checking socket access token %s.', accessToken)
  30
  31   if (!accessToken) return next(new Error('No access token provided'))
  32
  33   getAccessToken(accessToken)
  34     .then(tokenDB => {
  35       const now = new Date()
  36
  37       if (!tokenDB || tokenDB.accessTokenExpiresAt < now || tokenDB.refreshTokenExpiresAt < now) {
  38         return next(new Error('Invalid access token.'))
  39       }
  40
  41       socket.handshake.query.user = tokenDB.User
  42
  43       return next()
  44     })
  45     .catch(err => logger.error('Cannot get access token.', { err }))
  46 }
  47
  48 function authenticatePromiseIfNeeded (req: express.Request, res: express.Response, authenticateInQuery = false) {
  49   return new Promise(resolve => {
  50     // Already authenticated? (or tried to)
  51     if (res.locals.oauth?.token.User) return resolve()
  52
  53     if (res.locals.authenticated === false) return res.sendStatus(401)
  54
  55     authenticate(req, res, () => resolve(), authenticateInQuery)
  56   })
  57 }
  58
  59 function optionalAuthenticate (req: express.Request, res: express.Response, next: express.NextFunction) {
  60   if (req.header('authorization')) return authenticate(req, res, next)
  61
  62   res.locals.authenticated = false
  63
  64   return next()
  65 }
  66
  67 // ---------------------------------------------------------------------------
  68
  69 export {
  70   authenticate,
  71   authenticateSocket,
  72   authenticatePromiseIfNeeded,
  73   optionalAuthenticate
  74 }