AuthorityKeyIdentifierExtension::fromPublicKeyInfo() - Code Metrics - Inspection of "Add AC example" - sop/x509 - Measure and Improve Code Quality continuously with Scrutinizer

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by Joni

created 2017-11-27 12:42 UTC

fromPublicKeyInfo() A

↳ Parent: AuthorityKeyIdentifierExtension

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	4
ccs	2
cts	2
cp	1
rs	10
c	0
b	0
f	0
cc	1
eloc	2
nc	1
nop	1
crap	1

<?php

declare(strict_types = 1);

namespace X509\Certificate\Extension;

use ASN1\Element;
use ASN1\Type\UnspecifiedType;
use ASN1\Type\Constructed\Sequence;
use ASN1\Type\Primitive\Integer;
use ASN1\Type\Primitive\OctetString;
use ASN1\Type\Tagged\ImplicitlyTaggedType;
use Sop\CryptoTypes\Asymmetric\PublicKeyInfo;
use X509\GeneralName\GeneralNames;

/**
 * Implements 'Authority Key Identifier' certificate extension.
 *
 * @link https://tools.ietf.org/html/rfc5280#section-4.2.1.1
 */
class AuthorityKeyIdentifierExtension extends Extension
{
    /**
     * Key identifier.
     *
     * @var string|null $_keyIdentifier
     */
    protected $_keyIdentifier;
    
    /**
     * Issuer name.
     *
     * @var GeneralNames|null $_authorityCertIssuer
     */
    protected $_authorityCertIssuer;
    
    /**
     * Issuer serial number.
     *
     * @var string|null $_authorityCertSerialNumber
     */
    protected $_authorityCertSerialNumber;
    
    /**
     * Constructor.
     *
     * @param bool $critical Conforming CA's must mark as non-critical (false)
     * @param string|null $keyIdentifier
     * @param GeneralNames|null $issuer
     * @param string|null $serial
     */
    public function __construct(bool $critical, $keyIdentifier,
        GeneralNames $issuer = null, $serial = null)
    {
        parent::__construct(self::OID_AUTHORITY_KEY_IDENTIFIER, $critical);
        $this->_keyIdentifier = $keyIdentifier;
        $this->_authorityCertIssuer = $issuer;
        $this->_authorityCertSerialNumber = isset($serial) ? strval($serial) : null;
    }
    
    /**
     * Create from public key info.
     *
     * @param PublicKeyInfo $pki
     * @return AuthorityKeyIdentifierExtension
     */
    public static function fromPublicKeyInfo(PublicKeyInfo $pki)
    {
        return new self(false, $pki->keyIdentifier());
    }
    
    /**
     *
     * {@inheritdoc}
     * @return self
     */
    protected static function _fromDER(string $data, bool $critical): self
    {
        $seq = UnspecifiedType::fromDER($data)->asSequence();
        $keyIdentifier = null;
        $issuer = null;
        $serial = null;
        if ($seq->hasTagged(0)) {
            $keyIdentifier = $seq->getTagged(0)
                ->asImplicit(Element::TYPE_OCTET_STRING)
                ->asOctetString()
                ->string();
        }
        if ($seq->hasTagged(1) || $seq->hasTagged(2)) {
            if (!$seq->hasTagged(1) || !$seq->hasTagged(2)) {
                throw new \UnexpectedValueException(
                    "AuthorityKeyIdentifier must have both" .
                         " authorityCertIssuer and authorityCertSerialNumber" .
                         " present or both absent.");
            }
            $issuer = GeneralNames::fromASN1(
                $seq->getTagged(1)
                    ->asImplicit(Element::TYPE_SEQUENCE)
                    ->asSequence());
            $serial = $seq->getTagged(2)
                ->asImplicit(Element::TYPE_INTEGER)
                ->asInteger()
                ->number();
        }
        return new self($critical, $keyIdentifier, $issuer, $serial);
    }
    
    /**
     * Whether key identifier is present.
     *
     * @return bool
     */
    public function hasKeyIdentifier(): bool
    {
        return isset($this->_keyIdentifier);
    }
    
    /**
     * Get key identifier.
     *
     * @throws \LogicException
     * @return string
     */
    public function keyIdentifier(): string
    {
        if (!$this->hasKeyIdentifier()) {
            throw new \LogicException("keyIdentifier not set.");
        }
        return $this->_keyIdentifier;
    }
    
    /**
     * Whether issuer is present.
     *
     * @return bool
     */
    public function hasIssuer(): bool
    {
        return isset($this->_authorityCertIssuer);
    }
    
    /**
     * Get issuer.
     *
     * @throws \LogicException
     * @return GeneralNames
     */
    public function issuer(): GeneralNames
    {
        if (!$this->hasIssuer()) {
            throw new \LogicException("authorityCertIssuer not set.");
        }
        return $this->_authorityCertIssuer;
    }
    
    /**
     * Get serial number.
     *
     * @throws \LogicException
     * @return string Base 10 integer string
     */
    public function serial(): string
    {
        // both issuer and serial must be present or both absent
        if (!$this->hasIssuer()) {
            throw new \LogicException("authorityCertSerialNumber not set.");
        }
        return $this->_authorityCertSerialNumber;
    }
    
    /**
     *
     * {@inheritdoc}
     * @return Sequence
     */
    protected function _valueASN1(): Sequence
    {
        $elements = array();
        if (isset($this->_keyIdentifier)) {
            $elements[] = new ImplicitlyTaggedType(0,
                new OctetString($this->_keyIdentifier));
        }
        // if either issuer or serial is set, both must be set
        if (isset($this->_authorityCertIssuer) ||
             isset($this->_authorityCertSerialNumber)) {
            if (!isset($this->_authorityCertIssuer,
                $this->_authorityCertSerialNumber)) {
                throw new \LogicException(
                    "AuthorityKeyIdentifier must have both" .
                     " authorityCertIssuer and authorityCertSerialNumber" .
                     " present or both absent.");
            }
            $elements[] = new ImplicitlyTaggedType(1,
                $this->_authorityCertIssuer->toASN1());
            $elements[] = new ImplicitlyTaggedType(2,
                new Integer($this->_authorityCertSerialNumber));
        }
        return new Sequence(...$elements);
    }
}


1		<?php
2
3		declare(strict_types = 1);
4
5		namespace X509\Certificate\Extension;
6
7		use ASN1\Element;
8		use ASN1\Type\UnspecifiedType;
9		use ASN1\Type\Constructed\Sequence;
10		use ASN1\Type\Primitive\Integer;
11		use ASN1\Type\Primitive\OctetString;
12		use ASN1\Type\Tagged\ImplicitlyTaggedType;
13		use Sop\CryptoTypes\Asymmetric\PublicKeyInfo;
14		use X509\GeneralName\GeneralNames;
15
16		/**
17		* Implements 'Authority Key Identifier' certificate extension.
18		*
19		* @link https://tools.ietf.org/html/rfc5280#section-4.2.1.1
20		*/
21		class AuthorityKeyIdentifierExtension extends Extension
22		{
23		/**
24		* Key identifier.
25		*
26		* @var string\|null $_keyIdentifier
27		*/
28		protected $_keyIdentifier;
29
30		/**
31		* Issuer name.
32		*
33		* @var GeneralNames\|null $_authorityCertIssuer
34		*/
35		protected $_authorityCertIssuer;
36
37		/**
38		* Issuer serial number.
39		*
40		* @var string\|null $_authorityCertSerialNumber
41		*/
42		protected $_authorityCertSerialNumber;
43
44		/**
45		* Constructor.
46		*
47		* @param bool $critical Conforming CA's must mark as non-critical (false)
48		* @param string\|null $keyIdentifier
49		* @param GeneralNames\|null $issuer
50		* @param string\|null $serial
51		*/
52	27	public function __construct(bool $critical, $keyIdentifier,
53		GeneralNames $issuer = null, $serial = null)
54		{
55	27	parent::__construct(self::OID_AUTHORITY_KEY_IDENTIFIER, $critical);
56	27	$this->_keyIdentifier = $keyIdentifier;
57	27	$this->_authorityCertIssuer = $issuer;
58	27	$this->_authorityCertSerialNumber = isset($serial) ? strval($serial) : null;
59	27	}
60
61		/**
62		* Create from public key info.
63		*
64		* @param PublicKeyInfo $pki
65		* @return AuthorityKeyIdentifierExtension
66		*/
67	1	public static function fromPublicKeyInfo(PublicKeyInfo $pki)
68		{
69	1	return new self(false, $pki->keyIdentifier());
70		}
71
72		/**
73		*
74		* {@inheritdoc}
75		* @return self
76		*/
77	20	protected static function _fromDER(string $data, bool $critical): self
78		{
79	20	$seq = UnspecifiedType::fromDER($data)->asSequence();
80	20	$keyIdentifier = null;
81	20	$issuer = null;
82	20	$serial = null;
83	20	if ($seq->hasTagged(0)) {
84	20	$keyIdentifier = $seq->getTagged(0)
85	20	->asImplicit(Element::TYPE_OCTET_STRING)
86	20	->asOctetString()
87	20	->string();
88		}
89	20	if ($seq->hasTagged(1) \|\| $seq->hasTagged(2)) {
90	10	if (!$seq->hasTagged(1) \|\| !$seq->hasTagged(2)) {
91	1	throw new \UnexpectedValueException(
92		"AuthorityKeyIdentifier must have both" .
93		" authorityCertIssuer and authorityCertSerialNumber" .
94	1	" present or both absent.");
95		}
96	9	$issuer = GeneralNames::fromASN1(
97	9	$seq->getTagged(1)
98	9	->asImplicit(Element::TYPE_SEQUENCE)
99	9	->asSequence());
100	9	$serial = $seq->getTagged(2)
101	9	->asImplicit(Element::TYPE_INTEGER)
102	9	->asInteger()
103	9	->number();
104		}
105	19	return new self($critical, $keyIdentifier, $issuer, $serial);
106		}
107
108		/**
109		* Whether key identifier is present.
110		*
111		* @return bool
112		*/
113	12	public function hasKeyIdentifier(): bool
114		{
115	12	return isset($this->_keyIdentifier);
116		}
117
118		/**
119		* Get key identifier.
120		*
121		* @throws \LogicException
122		* @return string
123		*/
124	12	public function keyIdentifier(): string
125		{
126	12	if (!$this->hasKeyIdentifier()) {
127	1	throw new \LogicException("keyIdentifier not set.");
128		}
129	11	return $this->_keyIdentifier;
130		}
131
132		/**
133		* Whether issuer is present.
134		*
135		* @return bool
136		*/
137	5	public function hasIssuer(): bool
138		{
139	5	return isset($this->_authorityCertIssuer);
140		}
141
142		/**
143		* Get issuer.
144		*
145		* @throws \LogicException
146		* @return GeneralNames
147		*/
148	3	public function issuer(): GeneralNames
149		{
150	3	if (!$this->hasIssuer()) {
151	1	throw new \LogicException("authorityCertIssuer not set.");
152		}
153	2	return $this->_authorityCertIssuer;
154		}
155
156		/**
157		* Get serial number.
158		*
159		* @throws \LogicException
160		* @return string Base 10 integer string
161		*/
162	3	public function serial(): string
163		{
164		// both issuer and serial must be present or both absent
165	3	if (!$this->hasIssuer()) {
166	1	throw new \LogicException("authorityCertSerialNumber not set.");
167		}
168	2	return $this->_authorityCertSerialNumber;
169		}
170
171		/**
172		*
173		* {@inheritdoc}
174		* @return Sequence
175		*/
176	49	protected function _valueASN1(): Sequence
177		{
178	49	$elements = array();
179	49	if (isset($this->_keyIdentifier)) {
180	49	$elements[] = new ImplicitlyTaggedType(0,
181	49	new OctetString($this->_keyIdentifier));
182		}
183		// if either issuer or serial is set, both must be set
184	49	if (isset($this->_authorityCertIssuer) \|\|
185	49	isset($this->_authorityCertSerialNumber)) {
186	16	if (!isset($this->_authorityCertIssuer,
187	16	$this->_authorityCertSerialNumber)) {
188	1	throw new \LogicException(
189		"AuthorityKeyIdentifier must have both" .
190		" authorityCertIssuer and authorityCertSerialNumber" .
191	1	" present or both absent.");
192		}
193	15	$elements[] = new ImplicitlyTaggedType(1,
194	15	$this->_authorityCertIssuer->toASN1());
195	15	$elements[] = new ImplicitlyTaggedType(2,
196	15	new Integer($this->_authorityCertSerialNumber));
197		}
198	48	return new Sequence(...$elements);
199		}
200		}
201

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fromPublicKeyInfo() A

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