server/middlewares/secure.js

   1 'use strict'
   2
   3 const logger = require('../helpers/logger')
   4 const mongoose = require('mongoose')
   5 const peertubeCrypto = require('../helpers/peertube-crypto')
   6
   7 const Pod = mongoose.model('Pod')
   8
   9 const secureMiddleware = {
  10   checkSignature
  11 }
  12
  13 function checkSignature (req, res, next) {
  14   const host = req.body.signature.host
  15   Pod.loadByHost(host, function (err, pod) {
  16     if (err) {
  17       logger.error('Cannot get signed host in body.', { error: err })
  18       return res.sendStatus(500)
  19     }
  20
  21     if (pod === null) {
  22       logger.error('Unknown pod %s.', host)
  23       return res.sendStatus(403)
  24     }
  25
  26     logger.debug('Checking signature from %s.', host)
  27
  28     const signatureOk = peertubeCrypto.checkSignature(pod.publicKey, host, req.body.signature.signature)
  29
  30     if (signatureOk === true) {
  31       return next()
  32     }
  33
  34     logger.error('Signature is not okay in body for %s.', req.body.signature.host)
  35     return res.sendStatus(403)
  36   })
  37 }
  38
  39 // ---------------------------------------------------------------------------
  40
  41 module.exports = secureMiddleware