|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
declare(strict_types=1); |
|
4
|
|
|
|
|
5
|
|
|
namespace SimpleSAML\XMLSecurity\XML\ds; |
|
6
|
|
|
|
|
7
|
|
|
use DOMElement; |
|
8
|
|
|
use SimpleSAML\Assert\Assert; |
|
9
|
|
|
use SimpleSAML\XML\Exception\InvalidDOMElementException; |
|
10
|
|
|
|
|
11
|
|
|
/** |
|
12
|
|
|
* Class representing a ds:X509Digest element. |
|
13
|
|
|
* |
|
14
|
|
|
* @package simplesaml/xml-security |
|
15
|
|
|
*/ |
|
16
|
|
|
final class X509Digest extends AbstractDsElement |
|
17
|
|
|
{ |
|
18
|
|
|
/** |
|
19
|
|
|
* The digest. |
|
20
|
|
|
* |
|
21
|
|
|
* @var string |
|
22
|
|
|
*/ |
|
23
|
|
|
protected string $digest; |
|
24
|
|
|
|
|
25
|
|
|
|
|
26
|
|
|
/** |
|
27
|
|
|
* The digest algorithm. |
|
28
|
|
|
* |
|
29
|
|
|
* @var string |
|
30
|
|
|
*/ |
|
31
|
|
|
protected string $algorithm; |
|
32
|
|
|
|
|
33
|
|
|
|
|
34
|
|
|
/** |
|
35
|
|
|
* Initialize a X509Digest element. |
|
36
|
|
|
* |
|
37
|
|
|
* @param string $digest |
|
38
|
|
|
* @param string $algorithm |
|
39
|
|
|
*/ |
|
40
|
|
|
public function __construct(string $digest, string $algorithm) |
|
41
|
|
|
{ |
|
42
|
|
|
$this->setDigest($digest); |
|
43
|
|
|
$this->setAlgorithm($algorithm); |
|
44
|
|
|
} |
|
45
|
|
|
|
|
46
|
|
|
|
|
47
|
|
|
/** |
|
48
|
|
|
* Collect the value of the digest-property |
|
49
|
|
|
* |
|
50
|
|
|
* @return string |
|
51
|
|
|
*/ |
|
52
|
|
|
public function getDigest(): string |
|
53
|
|
|
{ |
|
54
|
|
|
return $this->digest; |
|
55
|
|
|
} |
|
56
|
|
|
|
|
57
|
|
|
|
|
58
|
|
|
/** |
|
59
|
|
|
* Set the value of the digest-property |
|
60
|
|
|
* |
|
61
|
|
|
* @param string $digest |
|
62
|
|
|
*/ |
|
63
|
|
|
private function setDigest(string $digest): void |
|
64
|
|
|
{ |
|
65
|
|
|
$this->digest = $digest; |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
|
|
|
|
69
|
|
|
/** |
|
70
|
|
|
* Collect the value of the algorithm-property |
|
71
|
|
|
* |
|
72
|
|
|
* @return string |
|
73
|
|
|
*/ |
|
74
|
|
|
public function getAlgorithm(): string |
|
75
|
|
|
{ |
|
76
|
|
|
return $this->algorithm; |
|
77
|
|
|
} |
|
78
|
|
|
|
|
79
|
|
|
|
|
80
|
|
|
/** |
|
81
|
|
|
* Set the value of the algorithm-property |
|
82
|
|
|
* |
|
83
|
|
|
* @param string $algorithm |
|
84
|
|
|
*/ |
|
85
|
|
|
private function setAlgorithm(string $algorithm): void |
|
86
|
|
|
{ |
|
87
|
|
|
$this->algorithm = $algorithm; |
|
88
|
|
|
} |
|
89
|
|
|
|
|
90
|
|
|
|
|
91
|
|
|
/** |
|
92
|
|
|
* Convert XML into a X509Digest |
|
93
|
|
|
* |
|
94
|
|
|
* @param \DOMElement $xml The XML element we should load |
|
95
|
|
|
* @return self |
|
96
|
|
|
* |
|
97
|
|
|
* @throws \SimpleSAML\XML\Exception\InvalidDOMElementException |
|
98
|
|
|
* If the qualified name of the supplied element is wrong |
|
99
|
|
|
*/ |
|
100
|
|
|
public static function fromXML(DOMElement $xml): object |
|
101
|
|
|
{ |
|
102
|
|
|
Assert::same($xml->localName, 'X509Digest', InvalidDOMElementException::class); |
|
103
|
|
|
Assert::same($xml->namespaceURI, X509Digest::NS, InvalidDOMElementException::class); |
|
104
|
|
|
|
|
105
|
|
|
$digest = $xml->textContent; |
|
106
|
|
|
$algorithm = self::getAttribute($xml, 'Algorithm'); |
|
107
|
|
|
|
|
108
|
|
|
Assert::stringNotEmpty($xml->textContent, 'Missing value digest.'); |
|
109
|
|
|
/** |
|
110
|
|
|
* Note: This test is not watertight but prevents a string containing illegal characters |
|
111
|
|
|
* from being passed and ensures the string roughly follows the correct format for a Base64 encoded string |
|
112
|
|
|
*/ |
|
113
|
|
|
Assert::string( |
|
114
|
|
|
filter_var( |
|
115
|
|
|
$digest, |
|
116
|
|
|
FILTER_VALIDATE_REGEXP, |
|
117
|
|
|
[ |
|
118
|
|
|
'options' => [ |
|
119
|
|
|
'regexp' => '/^(?:[A-Za-z0-9+\/]{4})*(?:[A-Za-z0-9+\/]{2}==|[A-Za-z0-9+\/]{3}=)?$/' |
|
120
|
|
|
] |
|
121
|
|
|
] |
|
122
|
|
|
), |
|
123
|
|
|
'Digest is not a valid Base64 encoded string' |
|
124
|
|
|
); |
|
125
|
|
|
return new self($digest, $algorithm); |
|
126
|
|
|
} |
|
127
|
|
|
|
|
128
|
|
|
|
|
129
|
|
|
/** |
|
130
|
|
|
* Convert this X509Digest element to XML. |
|
131
|
|
|
* |
|
132
|
|
|
* @param \DOMElement|null $parent The element we should append this X509Digest element to. |
|
133
|
|
|
* @return \DOMElement |
|
134
|
|
|
*/ |
|
135
|
|
|
public function toXML(DOMElement $parent = null): DOMElement |
|
136
|
|
|
{ |
|
137
|
|
|
$e = $this->instantiateParentElement($parent); |
|
138
|
|
|
|
|
139
|
|
|
$e->textContent = $this->digest; |
|
140
|
|
|
$e->setAttribute('Algorithm', $this->algorithm); |
|
141
|
|
|
|
|
142
|
|
|
return $e; |
|
143
|
|
|
} |
|
144
|
|
|
} |
|
145
|
|
|
|
simplesamlphp /
xml-security
