middlewares/secure.js

   1 'use strict'
   2
   3 var logger = require('../helpers/logger')
   4 var peertubeCrypto = require('../helpers/peertubeCrypto')
   5 var Pods = require('../models/pods')
   6
   7 var secureMiddleware = {
   8   decryptBody: decryptBody
   9 }
  10
  11 function decryptBody (req, res, next) {
  12   var url = req.body.signature.url
  13   Pods.findByUrl(url, function (err, pod) {
  14     if (err) {
  15       logger.error('Cannot get signed url in decryptBody.', { error: err })
  16       return res.sendStatus(500)
  17     }
  18
  19     if (pod === null) {
  20       logger.error('Unknown pod %s.', url)
  21       return res.sendStatus(403)
  22     }
  23
  24     logger.debug('Decrypting body from %s.', url)
  25
  26     var signature_ok = peertubeCrypto.checkSignature(pod.publicKey, url, req.body.signature.signature)
  27
  28     if (signature_ok === true) {
  29       peertubeCrypto.decrypt(req.body.key, req.body.data, function (err, decrypted) {
  30         if (err) {
  31           logger.error('Cannot decrypt data.', { error: err })
  32           return res.sendStatus(500)
  33         }
  34
  35         req.body.data = JSON.parse(decrypted)
  36         delete req.body.key
  37
  38         next()
  39       })
  40     } else {
  41       logger.error('Signature is not okay in decryptBody for %s.', req.body.signature.url)
  42       return res.sendStatus(403)
  43     }
  44   })
  45 }
  46
  47 // ---------------------------------------------------------------------------
  48
  49 module.exports = secureMiddleware