1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
;(function () {
'use strict'
var async = require('async')
var config = require('config')
var crypto = require('crypto')
var fs = require('fs')
var openssl = require('openssl-wrapper')
var request = require('request')
var replay = require('request-replay')
var ursa = require('ursa')
var constants = require('../initializers/constants')
var logger = require('./logger')
var certDir = __dirname + '/../' + config.get('storage.certs')
var http = config.get('webserver.https') ? 'https' : 'http'
var host = config.get('webserver.host')
var port = config.get('webserver.port')
var algorithm = 'aes-256-ctr'
var utils = {
getCertDir: getCertDir,
certsExist: certsExist,
cleanForExit: cleanForExit,
createCerts: createCerts,
createCertsIfNotExist: createCertsIfNotExist,
generatePassword: generatePassword,
makeMultipleRetryRequest: makeMultipleRetryRequest,
symetricEncrypt: symetricEncrypt,
symetricDecrypt: symetricDecrypt
}
function getCertDir () {
return certDir
}
function makeMultipleRetryRequest (all_data, pods, callbackEach, callback) {
if (!callback) {
callback = callbackEach
callbackEach = null
}
var url = http + '://' + host + ':' + port
var signature
// Add signature if it is specified in the params
if (all_data.method === 'POST' && all_data.data && all_data.sign === true) {
var myKey = ursa.createPrivateKey(fs.readFileSync(certDir + 'peertube.key.pem'))
signature = myKey.hashAndSign('sha256', url, 'utf8', 'hex')
}
// Make a request for each pod
async.each(pods, function (pod, callback_each_async) {
function callbackEachRetryRequest (err, response, body, url, pod) {
if (callbackEach !== null) {
callbackEach(err, response, body, url, pod, function () {
callback_each_async()
})
} else {
callback_each_async()
}
}
var params = {
url: pod.url + all_data.path,
method: all_data.method
}
// Add data with POST requst ?
if (all_data.method === 'POST' && all_data.data) {
// Encrypt data ?
if (all_data.encrypt === true) {
var crt = ursa.createPublicKey(pod.publicKey)
// TODO: ES6 with let
;(function (crt_copy, copy_params, copy_url, copy_pod, copy_signature) {
symetricEncrypt(JSON.stringify(all_data.data), function (err, dataEncrypted) {
if (err) throw err
var passwordEncrypted = crt_copy.encrypt(dataEncrypted.password, 'utf8', 'hex')
copy_params.json = {
data: dataEncrypted.crypted,
key: passwordEncrypted
}
makeRetryRequest(copy_params, copy_url, copy_pod, copy_signature, callbackEachRetryRequest)
})
})(crt, params, url, pod, signature)
} else {
params.json = { data: all_data.data }
makeRetryRequest(params, url, pod, signature, callbackEachRetryRequest)
}
} else {
makeRetryRequest(params, url, pod, signature, callbackEachRetryRequest)
}
}, callback)
}
function certsExist (callback) {
fs.exists(certDir + 'peertube.key.pem', function (exists) {
return callback(exists)
})
}
function createCerts (callback) {
certsExist(function (exist) {
if (exist === true) {
var string = 'Certs already exist.'
logger.warning(string)
return callback(new Error(string))
}
logger.info('Generating a RSA key...')
openssl.exec('genrsa', { 'out': certDir + 'peertube.key.pem', '2048': false }, function (err) {
if (err) {
logger.error('Cannot create private key on this pod.', { error: err })
return callback(err)
}
logger.info('RSA key generated.')
logger.info('Manage public key...')
openssl.exec('rsa', { 'in': certDir + 'peertube.key.pem', 'pubout': true, 'out': certDir + 'peertube.pub' }, function (err) {
if (err) {
logger.error('Cannot create public key on this pod .', { error: err })
return callback(err)
}
logger.info('Public key managed.')
return callback(null)
})
})
})
}
function createCertsIfNotExist (callback) {
certsExist(function (exist) {
if (exist === true) {
return callback(null)
}
createCerts(function (err) {
return callback(err)
})
})
}
function generatePassword (callback) {
crypto.randomBytes(32, function (err, buf) {
if (err) {
return callback(err)
}
callback(null, buf.toString('utf8'))
})
}
function symetricEncrypt (text, callback) {
generatePassword(function (err, password) {
if (err) {
return callback(err)
}
var cipher = crypto.createCipher(algorithm, password)
var crypted = cipher.update(text, 'utf8', 'hex')
crypted += cipher.final('hex')
callback(null, { crypted: crypted, password: password })
})
}
function symetricDecrypt (text, password) {
var decipher = crypto.createDecipher(algorithm, password)
var dec = decipher.update(text, 'hex', 'utf8')
dec += decipher.final('utf8')
return dec
}
function cleanForExit (webtorrent_process) {
logger.info('Gracefully exiting')
process.kill(-webtorrent_process.pid)
}
// ---------------------------------------------------------------------------
module.exports = utils
// ---------------------------------------------------------------------------
function makeRetryRequest (params, from_url, to_pod, signature, callbackEach) {
// Append the signature
if (signature) {
params.json.signature = {
url: from_url,
signature: signature
}
}
logger.debug('Make retry requests to %s.', to_pod.url)
replay(
request.post(params, function (err, response, body) {
callbackEach(err, response, body, params.url, to_pod)
}),
{
retries: constants.REQUEST_RETRIES,
factor: 3,
maxTimeout: Infinity,
errorCodes: [ 'EADDRINFO', 'ETIMEDOUT', 'ECONNRESET', 'ESOCKETTIMEDOUT', 'ENOTFOUND', 'ECONNREFUSED' ]
}
).on('replay', function (replay) {
logger.info('Replaying request to %s. Request failed: %d %s. Replay number: #%d. Will retry in: %d ms.',
params.url, replay.error.code, replay.error.message, replay.number, replay.delay)
})
}
})()
|
