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9f10b292 C |
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 |