|
1
|
|
|
<?php |
|
2
|
|
|
/* |
|
3
|
|
|
+------------------------------------------------------------------------+ |
|
4
|
|
|
| Plinker-RPC PHP | |
|
5
|
|
|
+------------------------------------------------------------------------+ |
|
6
|
|
|
| Copyright (c)2017-2018 (https://github.com/plinker-rpc/core) | |
|
7
|
|
|
+------------------------------------------------------------------------+ |
|
8
|
|
|
| This source file is subject to MIT License | |
|
9
|
|
|
| that is bundled with this package in the file LICENSE. | |
|
10
|
|
|
| | |
|
11
|
|
|
| If you did not receive a copy of the license and are unable to | |
|
12
|
|
|
| obtain it through the world-wide-web, please send an email | |
|
13
|
|
|
| to [email protected] so we can send you a copy immediately. | |
|
14
|
|
|
+------------------------------------------------------------------------+ |
|
15
|
|
|
| Authors: Lawrence Cherone <[email protected]> | |
|
16
|
|
|
+------------------------------------------------------------------------+ |
|
17
|
|
|
*/ |
|
18
|
|
|
|
|
19
|
|
|
namespace Plinker\Core\Lib; |
|
20
|
|
|
|
|
21
|
|
|
/** |
|
22
|
|
|
* Plinker\Core\Lib\Signer |
|
23
|
|
|
*/ |
|
24
|
|
|
final class Signer |
|
25
|
|
|
{ |
|
26
|
|
|
/** |
|
27
|
|
|
* @var |
|
28
|
|
|
*/ |
|
29
|
|
|
private $config; |
|
30
|
|
|
|
|
31
|
|
|
/** |
|
32
|
|
|
* Class construct |
|
33
|
|
|
* |
|
34
|
|
|
* @param array $config - config array which holds object configuration |
|
35
|
|
|
* @return void |
|
36
|
|
|
*/ |
|
37
|
2 |
|
public function __construct($config = []) |
|
38
|
|
|
{ |
|
39
|
|
|
// |
|
40
|
2 |
|
$this->config = array_merge([ |
|
41
|
2 |
|
"secret" => null |
|
42
|
2 |
|
], $config); |
|
43
|
|
|
|
|
44
|
|
|
// hash secret |
|
45
|
2 |
|
if (isset($this->config["secret"])) { |
|
46
|
2 |
|
$this->config["secret"] = hash("sha256", gmdate("h").$this->config["secret"]); |
|
47
|
|
|
} |
|
48
|
2 |
|
} |
|
49
|
|
|
|
|
50
|
|
|
/** |
|
51
|
|
|
* @codeCoverageIgnore |
|
52
|
|
|
*/ |
|
53
|
|
|
private function encrypt($plaintext, $password) |
|
54
|
|
|
{ |
|
55
|
|
|
$method = "AES-256-CBC"; |
|
56
|
|
|
$key = (string) hash("sha256", $password, true); |
|
57
|
|
|
$iv = (string) openssl_random_pseudo_bytes(16); |
|
58
|
|
|
$ciphertext = (string) openssl_encrypt($plaintext, $method, $key, OPENSSL_RAW_DATA, $iv); |
|
59
|
|
|
|
|
60
|
|
|
$hash = (string) hash_hmac("sha256", $ciphertext, $key, true); |
|
61
|
|
|
|
|
62
|
|
|
return base64_encode($iv . $hash . $ciphertext); |
|
63
|
|
|
} |
|
64
|
|
|
|
|
65
|
|
|
/** |
|
66
|
|
|
* @codeCoverageIgnore |
|
67
|
|
|
*/ |
|
68
|
|
|
private function decrypt($ciphertext, $password) |
|
69
|
|
|
{ |
|
70
|
|
|
$ciphertext = base64_decode($ciphertext); |
|
71
|
|
|
|
|
72
|
|
|
$method = "AES-256-CBC"; |
|
73
|
|
|
$iv = substr($ciphertext, 0, 16); |
|
74
|
|
|
$hash = substr($ciphertext, 16, 32); |
|
75
|
|
|
$ciphertext = substr($ciphertext, 48); |
|
76
|
|
|
$key = (string) hash("sha256", $password, true); |
|
77
|
|
|
|
|
78
|
|
|
if (hash_hmac("sha256", $ciphertext, $key, true) !== $hash) { |
|
79
|
|
|
return null; |
|
80
|
|
|
} |
|
81
|
|
|
|
|
82
|
|
|
return openssl_decrypt($ciphertext, $method, $key, OPENSSL_RAW_DATA, $iv); |
|
83
|
|
|
} |
|
84
|
|
|
|
|
85
|
|
|
/** |
|
86
|
|
|
* Sign and encrypt into payload array. |
|
87
|
|
|
* |
|
88
|
|
|
* @codeCoverageIgnore |
|
89
|
|
|
* |
|
90
|
|
|
* @return array |
|
91
|
|
|
*/ |
|
92
|
|
|
public function encode($data) |
|
93
|
|
|
{ |
|
94
|
|
|
$data = serialize($data); |
|
95
|
|
|
|
|
96
|
|
|
return [ |
|
97
|
|
|
"data" => $this->encrypt($data, $this->config["secret"]), |
|
98
|
|
|
"token" => hash_hmac( |
|
99
|
|
|
"sha256", |
|
100
|
|
|
$data, |
|
101
|
|
|
$this->config["secret"] |
|
102
|
|
|
) |
|
103
|
|
|
]; |
|
104
|
|
|
} |
|
105
|
|
|
|
|
106
|
|
|
/** |
|
107
|
|
|
* Decrypt, verify and unserialize payload. |
|
108
|
|
|
* |
|
109
|
|
|
* @codeCoverageIgnore |
|
110
|
|
|
* |
|
111
|
|
|
* @return mixed |
|
112
|
|
|
*/ |
|
113
|
|
|
public function decode($data) |
|
114
|
|
|
{ |
|
115
|
|
|
$data["data"] = $this->decrypt($data["data"], $this->config["secret"]); |
|
116
|
|
|
|
|
117
|
|
|
if (hash_hmac( |
|
118
|
|
|
"sha256", |
|
119
|
|
|
$data["data"], |
|
120
|
|
|
$this->config["secret"] |
|
121
|
|
|
) == $data["token"]) { |
|
122
|
|
|
return unserialize($data["data"]); |
|
123
|
|
|
} else { |
|
124
|
|
|
throw new \Exception('Failed to verify payload'); |
|
125
|
|
|
} |
|
126
|
|
|
} |
|
127
|
|
|
} |
|
128
|
|
|
|
plinker-rpc /
core
