|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
declare(strict_types=1); |
|
4
|
|
|
|
|
5
|
|
|
/* |
|
6
|
|
|
* The MIT License (MIT) |
|
7
|
|
|
* |
|
8
|
|
|
* Copyright (c) 2014-2017 Spomky-Labs |
|
9
|
|
|
* |
|
10
|
|
|
* This software may be modified and distributed under the terms |
|
11
|
|
|
* of the MIT license. See the LICENSE file for details. |
|
12
|
|
|
*/ |
|
13
|
|
|
|
|
14
|
|
|
namespace Jose\Component\Checker; |
|
15
|
|
|
|
|
16
|
|
|
use Jose\Component\Core\JWTInterface; |
|
17
|
|
|
use Jose\Component\Encryption\JWE; |
|
18
|
|
|
use Jose\Component\Signature\JWS; |
|
19
|
|
|
|
|
20
|
|
|
/** |
|
21
|
|
|
* Class HeaderCheckerManager. |
|
22
|
|
|
*/ |
|
23
|
|
|
final class HeaderCheckerManager |
|
24
|
|
|
{ |
|
25
|
|
|
/** |
|
26
|
|
|
* @var HeaderCheckerInterface[] |
|
27
|
|
|
*/ |
|
28
|
|
|
private $checkers = []; |
|
29
|
|
|
|
|
30
|
|
|
/** |
|
31
|
|
|
* HeaderCheckerManager constructor. |
|
32
|
|
|
* |
|
33
|
|
|
* @param HeaderCheckerInterface[] $checkers |
|
34
|
|
|
*/ |
|
35
|
|
|
private function __construct(array $checkers) |
|
36
|
|
|
{ |
|
37
|
|
|
foreach ($checkers as $checker) { |
|
38
|
|
|
$this->add($checker); |
|
39
|
|
|
} |
|
40
|
|
|
} |
|
41
|
|
|
|
|
42
|
|
|
/** |
|
43
|
|
|
* @param HeaderCheckerInterface[] $checkers |
|
44
|
|
|
* |
|
45
|
|
|
* @return HeaderCheckerManager |
|
46
|
|
|
*/ |
|
47
|
|
|
public static function create(array $checkers): HeaderCheckerManager |
|
48
|
|
|
{ |
|
49
|
|
|
return new self($checkers); |
|
50
|
|
|
} |
|
51
|
|
|
|
|
52
|
|
|
/** |
|
53
|
|
|
* @param HeaderCheckerInterface $checker |
|
54
|
|
|
* |
|
55
|
|
|
* @return HeaderCheckerManager |
|
56
|
|
|
*/ |
|
57
|
|
|
private function add(HeaderCheckerInterface $checker): HeaderCheckerManager |
|
58
|
|
|
{ |
|
59
|
|
|
$this->checkers[$checker->supportedHeader()] = $checker; |
|
60
|
|
|
|
|
61
|
|
|
return $this; |
|
62
|
|
|
} |
|
63
|
|
|
|
|
64
|
|
|
/** |
|
65
|
|
|
* @param JWTInterface $jwt |
|
66
|
|
|
* @param int $component |
|
67
|
|
|
*/ |
|
68
|
|
|
public function check(JWTInterface $jwt, int $component) |
|
69
|
|
|
{ |
|
70
|
|
|
switch (true) { |
|
71
|
|
|
case $jwt instanceof JWS: |
|
72
|
|
|
$this->checkJWS($jwt, $component); |
|
73
|
|
|
|
|
74
|
|
|
break; |
|
75
|
|
|
case $jwt instanceof JWE: |
|
76
|
|
|
$this->checkJWE($jwt, $component); |
|
77
|
|
|
|
|
78
|
|
|
break; |
|
79
|
|
|
default: |
|
80
|
|
|
throw new \InvalidArgumentException('Unsupported argument'); |
|
81
|
|
|
} |
|
82
|
|
|
} |
|
83
|
|
|
|
|
84
|
|
|
/** |
|
85
|
|
|
* @param JWS $jws |
|
86
|
|
|
* @param int $signature |
|
87
|
|
|
*/ |
|
88
|
|
|
public function checkJWS(JWS $jws, int $signature) |
|
89
|
|
|
{ |
|
90
|
|
|
if ($signature > $jws->countSignatures()) { |
|
91
|
|
|
throw new \InvalidArgumentException('Unknown signature index.'); |
|
92
|
|
|
} |
|
93
|
|
|
$protected = $jws->getSignature($signature)->getProtectedHeaders(); |
|
94
|
|
|
$headers = $jws->getSignature($signature)->getHeaders(); |
|
95
|
|
|
$this->checkDuplicatedHeaderParameters($protected, $headers); |
|
96
|
|
|
$this->checkHeaders($protected, $headers); |
|
97
|
|
|
} |
|
98
|
|
|
|
|
99
|
|
|
/** |
|
100
|
|
|
* @param JWE $jwe |
|
101
|
|
|
* @param int $recipient |
|
102
|
|
|
*/ |
|
103
|
|
|
public function checkJWE(JWE $jwe, int $recipient) |
|
104
|
|
|
{ |
|
105
|
|
|
if ($recipient > $jwe->countRecipients()) { |
|
106
|
|
|
throw new \InvalidArgumentException('Unknown recipient index.'); |
|
107
|
|
|
} |
|
108
|
|
|
$protected = $jwe->getSharedProtectedHeaders(); |
|
109
|
|
|
$headers = $jwe->getSharedHeaders(); |
|
110
|
|
|
$recipient = $jwe->getRecipient($recipient)->getHeaders(); |
|
111
|
|
|
$this->checkDuplicatedHeaderParameters($protected, $headers); |
|
112
|
|
|
$this->checkDuplicatedHeaderParameters($protected, $recipient); |
|
113
|
|
|
$this->checkDuplicatedHeaderParameters($headers, $recipient); |
|
114
|
|
|
$unprotected = array_merge( |
|
115
|
|
|
$headers, |
|
116
|
|
|
$recipient |
|
117
|
|
|
); |
|
118
|
|
|
$this->checkHeaders($protected, $unprotected); |
|
119
|
|
|
} |
|
120
|
|
|
|
|
121
|
|
|
/** |
|
122
|
|
|
* @param array $header1 |
|
123
|
|
|
* @param array $header2 |
|
124
|
|
|
*/ |
|
125
|
|
|
private function checkDuplicatedHeaderParameters(array $header1, array $header2) |
|
126
|
|
|
{ |
|
127
|
|
|
$inter = array_intersect_key($header1, $header2); |
|
128
|
|
|
if (!empty($inter)) { |
|
129
|
|
|
throw new \InvalidArgumentException(sprintf('The header contains duplicated entries: %s.', json_encode(array_keys($inter)))); |
|
130
|
|
|
} |
|
131
|
|
|
} |
|
132
|
|
|
|
|
133
|
|
|
/** |
|
134
|
|
|
* @param array $protected |
|
135
|
|
|
* @param array $headers |
|
136
|
|
|
*/ |
|
137
|
|
|
private function checkHeaders(array $protected, array $headers) |
|
138
|
|
|
{ |
|
139
|
|
|
$checkedHeaders = []; |
|
140
|
|
|
foreach ($this->checkers as $header => $checker) { |
|
141
|
|
|
if ($checker->protectedHeaderOnly()) { |
|
142
|
|
|
if (array_key_exists($header, $protected)) { |
|
143
|
|
|
$checker->checkHeader($protected[$header]); |
|
144
|
|
|
$checkedHeaders[] = $header; |
|
145
|
|
|
} else { |
|
146
|
|
|
throw new \InvalidArgumentException(sprintf('The header "%s" must be protected.', $header)); |
|
147
|
|
|
} |
|
148
|
|
|
} else { |
|
149
|
|
|
if (array_key_exists($header, $protected)) { |
|
150
|
|
|
$checker->checkHeader($protected[$header]); |
|
151
|
|
|
$checkedHeaders[] = $header; |
|
152
|
|
|
} elseif (array_key_exists($header, $headers)) { |
|
153
|
|
|
$checker->checkHeader($headers[$header]); |
|
154
|
|
|
$checkedHeaders[] = $header; |
|
155
|
|
|
} |
|
156
|
|
|
} |
|
157
|
|
|
} |
|
158
|
|
|
|
|
159
|
|
|
if (array_key_exists('crit', $protected)) { |
|
160
|
|
|
if (!is_array($protected['crit'])) { |
|
161
|
|
|
throw new \InvalidArgumentException('The header "crit" mus be a list of header parameters.'); |
|
162
|
|
|
} |
|
163
|
|
|
$diff = array_diff($protected['crit'], $checkedHeaders); |
|
164
|
|
|
if (!empty($diff)) { |
|
165
|
|
|
throw new \InvalidArgumentException(sprintf('One or more headers are marked as critical, but they are missing or have not been checked: %s.', json_encode(array_values($diff)))); |
|
166
|
|
|
} |
|
167
|
|
|
} elseif (array_key_exists('crit', $headers)) { |
|
168
|
|
|
throw new \InvalidArgumentException('The header parameter "crit" must be protected.'); |
|
169
|
|
|
} |
|
170
|
|
|
} |
|
171
|
|
|
} |
|
172
|
|
|
|
Spomky-Labs /
jose
