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1'use strict'
2
3const db = require('../initializers/database')
4const logger = require('../helpers/logger')
5const peertubeCrypto = require('../helpers/peertube-crypto')
6
7const secureMiddleware = {
8 checkSignature
9}
10
11function checkSignature (req, res, next) {
12 const host = req.body.signature.host
13 db.Pod.loadByHost(host, function (err, pod) {
14 if (err) {
15 logger.error('Cannot get signed host in body.', { error: err })
16 return res.sendStatus(500)
17 }
18
19 if (pod === null) {
20 logger.error('Unknown pod %s.', host)
21 return res.sendStatus(403)
22 }
23
24 logger.debug('Checking signature from %s.', host)
25
26 let signatureShouldBe
27 if (req.body.data) {
28 signatureShouldBe = req.body.data
29 } else {
30 signatureShouldBe = host
31 }
32
33 const signatureOk = peertubeCrypto.checkSignature(pod.publicKey, signatureShouldBe, req.body.signature.signature)
34
35 if (signatureOk === true) {
36 res.locals.secure = {
37 pod
38 }
39
40 return next()
41 }
42
43 logger.error('Signature is not okay in body for %s.', req.body.signature.host)
44 return res.sendStatus(403)
45 })
46}
47
48// ---------------------------------------------------------------------------
49
50module.exports = secureMiddleware