SslCertificate::isSelfSigned() - Code Metrics - liquidweb/ssl-certificate - Measure and Improve Code Quality continuously with Scrutinizer

SslCertificate::isSelfSigned() B
last analyzed 2018-03-02 20:07 UTC

↳ Parent: SslCertificate

Complexity

Conditions	4
Paths	6

Size

Total Lines	23
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	6
CRAP Score	5.024

Importance

Changes

Metric	Value
cc	4
eloc	11
nc	6
nop	0
dl	0
loc	23
ccs	6
cts	10
cp	0.6
crap	5.024
rs	8.7972
c	0
b	0
f	0

<?php

namespace LiquidWeb\SslCertificate;

use Carbon\Carbon;
use phpseclib\Math\BigInteger;

class SslCertificate
{
    /** @var bool */
    protected $trusted;

    /** @var bool */
    protected $revoked;

    /** @var string */
    protected $ip;

    /** @var BigInteger */
    protected $serial;

    /** @var string */
    protected $inputDomain;

    /** @var string */
    protected $testedDomain;

    /** @var array */
    protected $certificateFields = [];

    /** @var array */
    protected $certificateChains = [];

    /** @var array */
    protected $connectionMeta = [];

    /** @var array */
    protected $crlLinks = [];

    /** @var SslRevocationList */
    protected $crl = null;

    /** @var Carbon */
    protected $revokedTime = null;

    public static function createForHostName(string $url, int $timeout = 30): self
    {
        $downloadResults = Downloader::downloadCertificateFromUrl($url, $timeout);

        return new static($downloadResults);
    }

    private static function extractCrlLinks($rawCrlPoints): string
    {
        $tempCrlItem = explode('URI:', $rawCrlPoints);
        $cleanCrlItem = trim($tempCrlItem[1]);

        return $cleanCrlItem;
    }

    private static function parseCrlLinks($rawCrlInput): array
    {
        $crlLinks = [];
        $crlRawItems = explode('Full Name:', $rawCrlInput);
        // Remove the stuff before the first 'Full Name:' item
        array_splice($crlRawItems, 0, 1);
        foreach ($crlRawItems as $item) {
            $crlLink = self::extractCrlLinks($item);
            array_push($crlLinks, $crlLink);
            unset($crlLink);
        }

        return $crlLinks;
    }

    private static function parseCertChains(array $chains): array
    {
        $output = [];
        foreach ($chains as $cert) {
            array_push($output, new SslChain($cert));
        }

        return $output;
    }

    public function withSslCrlCheck(): self
    {
        $links = $this->getCrlLinks();
        if (is_null($links) === true || empty($links) === true) {
            return $this;
        }
        $this->crl = SslRevocationList::createFromUrl($links[0]);

        foreach ($this->crl->getRevokedList() as $revoked) {
            if ($this->serial->equals($revoked['userCertificate'])) {
                $this->trusted = false;
                $this->revoked = true;
                $this->revokedTime = new Carbon($revoked['revocationDate']['utcTime']);

                return $this;
            }
        }
        $this->revoked = false;

        return $this;
    }

    public function __construct(array $downloadResults)
    {
        $this->inputDomain = $downloadResults['inputDomain'];
        $this->testedDomain = $downloadResults['tested'];
        $this->trusted = $downloadResults['trusted'];
        $this->ip = $downloadResults['dns-resolves-to'];
        $this->certificateFields = $downloadResults['cert'];
        $this->certificateChains = self::parseCertChains($downloadResults['full_chain']);
        $this->connectionMeta = $downloadResults['connection'];
        $this->serial = new BigInteger($downloadResults['cert']['serialNumber']);

        if (isset($downloadResults['cert']['extensions']['crlDistributionPoints'])) {
            $this->crlLinks = self::parseCrlLinks($downloadResults['cert']['extensions']['crlDistributionPoints']);
        }
    }

    public function hasSslChain(): bool
    {
        if (isset($this->certificateChains) && count($this->certificateChains) >= 1) {
            return true;
        }

        return false;
    }

    public function getCertificateFields(): array
    {
        return $this->certificateFields;
    }

    public function getCertificateChains(): array
    {
        return $this->certificateChains;
    }

    public function getSerialNumber(): string
    {
        return strtoupper($this->serial->toHex());
    }

    public function hasCrlLink(): bool
    {
        return isset($this->certificateFields['extensions']['crlDistributionPoints']);
    }

    public function getCrlLinks()
    {
        if (! $this->hasCrlLink()) {
            return;
        }

        return $this->crlLinks;
    }

    public function getCrl()
    {
        if (! $this->hasCrlLink()) {
            return;
        }

        return $this->crl;
    }

    public function isRevoked()
    {
        return $this->revoked;
    }

    public function getCrlRevokedTime()
    {
        if ($this->isRevoked()) {
            return $this->revokedTime;
        }
    }

    public function getResolvedIp(): string
    {
        return $this->ip;
    }

    public function getIssuer(): string
    {
        return $this->certificateFields['issuer']['CN'];
    }

    public function getDomain(): string
    {
        $certDomain = $this->getCertificateDomain();
        if (str_contains($certDomain, $this->inputDomain) === false) {
            return $this->inputDomain;
        }

        return $certDomain ?? '';
    }

    public function getTestedDomain(): string
    {
        return $this->testedDomain;
    }

    public function getInputDomain(): string
    {
        return $this->inputDomain;
    }

    public function getCertificateDomain(): string
    {
        return $this->certificateFields['subject']['CN'];
    }

    public function getAdditionalDomains(): array
    {
        $additionalDomains = explode(', ', $this->certificateFields['extensions']['subjectAltName'] ?? '');

        return array_map(function (string $domain) {
            return str_replace('DNS:', '', $domain);
        }, $additionalDomains);
    }

    public function getSignatureAlgorithm(): string
    {
        return $this->certificateFields['signatureTypeSN'] ?? '';
    }

    public function getConnectionMeta(): array
    {
        return $this->connectionMeta;
    }

    public function validFromDate(): Carbon
    {
        return Carbon::createFromTimestampUTC($this->certificateFields['validFrom_time_t']);
    }

    public function expirationDate(): Carbon
    {
        return Carbon::createFromTimestampUTC($this->certificateFields['validTo_time_t']);
    }

    public function isExpired(): bool
    {
        return $this->expirationDate()->isPast();
    }

    public function isTrusted(): bool
    {
        return $this->trusted;
    }

    public function isValid(string $url = null): bool
    {
        // Verify SSL not expired
        if (! Carbon::now()->between($this->validFromDate(), $this->expirationDate())) {
            return false;
        }
        // Verify the SSL applies to the domain; use $url if provided, other wise use input
        if ($this->appliesToUrl($url ?? $this->inputDomain) === false) {
            return false;
        }
        // Check SerialNumber for CRL list
        if ($this->isRevoked()) {
            return false;
        }

        return true;
    }

    public function isValidUntil(Carbon $carbon, string $url = null): bool
    {
        if ($this->isValidDate($carbon) === false) {
            return false;
        }

        return $this->isValid($url);
    }

    public function isValidDate(Carbon $carbon): bool
    {
        if ($carbon->between($this->validFromDate(), $this->expirationDate()) === false) {
            return false;
        }

        return true;
    }

    public function isSelfSigned(): bool
    {
        // Get the issuer data
        $url = $this->getIssuer();
        // make sure we don't include wildcard if it's there...
        if (starts_with($url, '*.') === true) {
            $url = substr($url, 2);
        }
        //Try to parse the string
        try {
            $issuerUrl = new Url($url);
        } catch (\Exception $e) {
            // if we hit this exception then the string is not likely a URL
            // If it's not a URL and is valid we can assume it's not self signed
            return false;
        }
        // If it is a domain, run appliesToUrl
        if ($this->appliesToUrl((string) $issuerUrl) === true) {
            return true;
        }

        return false;
    }

    public function appliesToUrl(string $url): bool
    {
        if (starts_with($url, '*.') === true) {
            $url = substr($url, 2);
        }
        $host = (new Url($url))->getHostName() ?: $url;

        $certificateHosts = array_merge([$this->getCertificateDomain()], $this->getAdditionalDomains());

        foreach ($certificateHosts as $certificateHost) {
            if ($host === $certificateHost) {
                return true;
            }

            if ($this->wildcardHostCoversHost($certificateHost, $host)) {
                return true;
            }
        }

        return false;
    }

    protected function wildcardHostCoversHost(string $wildcardHost, string $host): bool
    {
        if ($host === $wildcardHost) {
            return true;
        }

        if (! starts_with($wildcardHost, '*')) {
            return false;
        }

        $wildcardHostWithoutWildcard = substr($wildcardHost, 2);

        return substr_count($wildcardHost, '.') >= substr_count($host, '.') && ends_with($host, $wildcardHostWithoutWildcard);
    }
}


1			<?php
2
3			namespace LiquidWeb\SslCertificate;
4
5			use Carbon\Carbon;
6			use phpseclib\Math\BigInteger;
7
8			class SslCertificate
9			{
10			/** @var bool */
11			protected $trusted;
12
13			/** @var bool */
14			protected $revoked;
15
16			/** @var string */
17			protected $ip;
18
19			/** @var BigInteger */
20			protected $serial;
21
22			/** @var string */
23			protected $inputDomain;
24
25			/** @var string */
26			protected $testedDomain;
27
28			/** @var array */
29			protected $certificateFields = [];
30
31			/** @var array */
32			protected $certificateChains = [];
33
34			/** @var array */
35			protected $connectionMeta = [];
36
37			/** @var array */
38			protected $crlLinks = [];
39
40			/** @var SslRevocationList */
41			protected $crl = null;
42
43			/** @var Carbon */
44			protected $revokedTime = null;
45
46	3		public static function createForHostName(string $url, int $timeout = 30): self
47			{
48	3		$downloadResults = Downloader::downloadCertificateFromUrl($url, $timeout);
49
50	3		return new static($downloadResults);
51			}
52
53	4		private static function extractCrlLinks($rawCrlPoints): string
54			{
55	4		$tempCrlItem = explode('URI:', $rawCrlPoints);
56	4		$cleanCrlItem = trim($tempCrlItem[1]);
57
58	4		return $cleanCrlItem;
59			}
60
61	4		private static function parseCrlLinks($rawCrlInput): array
62			{
63	4		$crlLinks = [];
64	4		$crlRawItems = explode('Full Name:', $rawCrlInput);
65			// Remove the stuff before the first 'Full Name:' item
66	4		array_splice($crlRawItems, 0, 1);
67	4		foreach ($crlRawItems as $item) {
68	4		$crlLink = self::extractCrlLinks($item);
69	4		array_push($crlLinks, $crlLink);
70	4		unset($crlLink);
71			}
72
73	4		return $crlLinks;
74			}
75
76	25		private static function parseCertChains(array $chains): array
77			{
78	25		$output = [];
79	25		foreach ($chains as $cert) {
80	24		array_push($output, new SslChain($cert));
81			}
82
83	25		return $output;
84			}
85
86	2		public function withSslCrlCheck(): self
87			{
88	2		$links = $this->getCrlLinks();
89	2		if (is_null($links) === true \|\| empty($links) === true) {
90			return $this;
91			}
92	2		$this->crl = SslRevocationList::createFromUrl($links[0]);
93
94	2		foreach ($this->crl->getRevokedList() as $revoked) {
95	2		if ($this->serial->equals($revoked['userCertificate'])) {
96	1		$this->trusted = false;
97	1		$this->revoked = true;
98	1		$this->revokedTime = new Carbon($revoked['revocationDate']['utcTime']);
99
100	2		return $this;
101			}
102			}
103	1		$this->revoked = false;
104
105	1		return $this;
106			}
107
108	25		public function __construct(array $downloadResults)
109			{
110	25		$this->inputDomain = $downloadResults['inputDomain'];
111	25		$this->testedDomain = $downloadResults['tested'];
112	25		$this->trusted = $downloadResults['trusted'];
113	25		$this->ip = $downloadResults['dns-resolves-to'];
114	25		$this->certificateFields = $downloadResults['cert'];
115	25		$this->certificateChains = self::parseCertChains($downloadResults['full_chain']);
116	25		$this->connectionMeta = $downloadResults['connection'];
117	25		$this->serial = new BigInteger($downloadResults['cert']['serialNumber']);
118
119	25		if (isset($downloadResults['cert']['extensions']['crlDistributionPoints'])) {
120	4		$this->crlLinks = self::parseCrlLinks($downloadResults['cert']['extensions']['crlDistributionPoints']);
121			}
122	25		}
123
124	2		public function hasSslChain(): bool
125			{
126	2		if (isset($this->certificateChains) && count($this->certificateChains) >= 1) {
127	1		return true;
128			}
129
130	1		return false;
131			}
132
133	1		public function getCertificateFields(): array
134			{
135	1		return $this->certificateFields;
136			}
137
138	1		public function getCertificateChains(): array
139			{
140	1		return $this->certificateChains;
141			}
142
143	1		public function getSerialNumber(): string
144			{
145	1		return strtoupper($this->serial->toHex());
146			}
147
148	2		public function hasCrlLink(): bool
149			{
150	2		return isset($this->certificateFields['extensions']['crlDistributionPoints']);
151			}
152
153	2		public function getCrlLinks()
154			{
155	2		if (! $this->hasCrlLink()) {
156			return;
157			}
158
159	2		return $this->crlLinks;
160			}
161
162			public function getCrl()
163			{
164			if (! $this->hasCrlLink()) {
165			return;
166			}
167
168			return $this->crl;
169			}
170
171	7		public function isRevoked()
172			{
173	7		return $this->revoked;
174			}
175
176	1		public function getCrlRevokedTime()
177			{
178	1		if ($this->isRevoked()) {
179	1		return $this->revokedTime;
180			}
181			}
182
183	1		public function getResolvedIp(): string
184			{
185	1		return $this->ip;
186			}
187
188	2		public function getIssuer(): string
189			{
190	2		return $this->certificateFields['issuer']['CN'];
191			}
192
193	4		public function getDomain(): string
194			{
195	4		$certDomain = $this->getCertificateDomain();
196	4		if (str_contains($certDomain, $this->inputDomain) === false) {
197			return $this->inputDomain;
198			}
199
200	4		return $certDomain ?? '';
201			}
202
203	1		public function getTestedDomain(): string
204			{
205	1		return $this->testedDomain;
206			}
207
208			public function getInputDomain(): string
209			{
210			return $this->inputDomain;
211			}
212
213	8		public function getCertificateDomain(): string
214			{
215	8		return $this->certificateFields['subject']['CN'];
216			}
217
218	8		public function getAdditionalDomains(): array
219			{
220	8		$additionalDomains = explode(', ', $this->certificateFields['extensions']['subjectAltName'] ?? '');
221
222	8		return array_map(function (string $domain) {
223	8		return str_replace('DNS:', '', $domain);
224	8		}, $additionalDomains);
225			}
226
227	1		public function getSignatureAlgorithm(): string
228			{
229	1		return $this->certificateFields['signatureTypeSN'] ?? '';
230			}
231
232			public function getConnectionMeta(): array
233			{
234			return $this->connectionMeta;
235			}
236
237	8		public function validFromDate(): Carbon
238			{
239	8		return Carbon::createFromTimestampUTC($this->certificateFields['validFrom_time_t']);
240			}
241
242	9		public function expirationDate(): Carbon
243			{
244	9		return Carbon::createFromTimestampUTC($this->certificateFields['validTo_time_t']);
245			}
246
247	1		public function isExpired(): bool
248			{
249	1		return $this->expirationDate()->isPast();
250			}
251
252	1		public function isTrusted(): bool
253			{
254	1		return $this->trusted;
255			}
256
257	6		public function isValid(string $url = null): bool
258			{
259			// Verify SSL not expired
260	6		if (! Carbon::now()->between($this->validFromDate(), $this->expirationDate())) {
261	2		return false;
262			}
263			// Verify the SSL applies to the domain; use $url if provided, other wise use input
264	5		if ($this->appliesToUrl($url ?? $this->inputDomain) === false) {
265	1		return false;
266			}
267			// Check SerialNumber for CRL list
268	5		if ($this->isRevoked()) {
269			return false;
270			}
271
272	5		return true;
273			}
274
275	1		public function isValidUntil(Carbon $carbon, string $url = null): bool
276			{
277	1		if ($this->isValidDate($carbon) === false) {
278	1		return false;
279			}
280
281	1		return $this->isValid($url);
282			}
283
284	2	View Code Duplication	public function isValidDate(Carbon $carbon): bool
285			{
286	2		if ($carbon->between($this->validFromDate(), $this->expirationDate()) === false) {
287	2		return false;
288			}
289
290	2		return true;
291			}
292
293	1		public function isSelfSigned(): bool
294			{
295			// Get the issuer data
296	1		$url = $this->getIssuer();
297			// make sure we don't include wildcard if it's there...
298	1		if (starts_with($url, '*.') === true) {
299			$url = substr($url, 2);
300			}
301			//Try to parse the string
302			try {
303	1		$issuerUrl = new Url($url);
304			} catch (\Exception $e) {
305			// if we hit this exception then the string is not likely a URL
306			// If it's not a URL and is valid we can assume it's not self signed
307			return false;
308			}
309			// If it is a domain, run appliesToUrl
310	1		if ($this->appliesToUrl((string) $issuerUrl) === true) {
311			return true;
312			}
313
314	1		return false;
315			}
316
317	7		public function appliesToUrl(string $url): bool
318			{
319	7		if (starts_with($url, '*.') === true) {
320	1		$url = substr($url, 2);
321			}
322	7		$host = (new Url($url))->getHostName() ?: $url;
323
324	7		$certificateHosts = array_merge([$this->getCertificateDomain()], $this->getAdditionalDomains());
325
326	7		foreach ($certificateHosts as $certificateHost) {
327	7		if ($host === $certificateHost) {
328	5		return true;
329			}
330
331	4		if ($this->wildcardHostCoversHost($certificateHost, $host)) {
332	4		return true;
333			}
334			}
335
336	2		return false;
337			}
338
339	4		protected function wildcardHostCoversHost(string $wildcardHost, string $host): bool
340			{
341	4		if ($host === $wildcardHost) {
342			return true;
343			}
344
345	4		if (! starts_with($wildcardHost, '*')) {
346	3		return false;
347			}
348
349	2		$wildcardHostWithoutWildcard = substr($wildcardHost, 2);
350
351	2		return substr_count($wildcardHost, '.') >= substr_count($host, '.') && ends_with($host, $wildcardHostWithoutWildcard);
352			}
353			}
354

liquidweb / ssl-certificate

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SslCertificate::isSelfSigned() B last analyzed 2018-03-02 20:07 UTC

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SslCertificate::isSelfSigned() B
last analyzed 2018-03-02 20:07 UTC