Loader::convert() - Code Metrics - Inspection of "WIP" - Spomky-Labs/jose - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — v2.0.x ( 7a58b6 )

by Florent

created 2016-01-26 17:09 UTC

Loader::convert() B

↳ Parent: Loader

Complexity

Conditions	7
Paths	6

Size

Total Lines	15
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	15
rs	8.2222
cc	7
eloc	11
nc	6
nop	1

<?php

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2014-2015 Spomky-Labs
 *
 * This software may be modified and distributed under the terms
 * of the MIT license.  See the LICENSE file for details.
 */

namespace Jose;

use Base64Url\Base64Url;
use Jose\Object\JWE;
use Jose\Object\JWS;
use Jose\Object\Recipient;
use Jose\Object\Signature;

/**
 * Class able to load JWS or JWE.
 * JWS object can also be verified.
 */
final class Loader implements LoaderInterface
{
    /**
     * Loader constructor.
     */
    private function __construct() {}

    /**
     * {@inheritdoc}
     */
    public static function load($input)
    {
        $json = self::convert($input);
        if (array_key_exists('signatures', $json)) {
            return self::loadSerializedJsonJWS($json);
        }
        if (array_key_exists('recipients', $json)) {
            return self::loadSerializedJsonJWE($json, $input);
        }
        throw new \InvalidArgumentException('Unable to load the input');
    }

    /**
     * @param array  $data
     *
     * @return \Jose\Object\JWSInterface|\Jose\Object\JWSInterface[]
     */
    private static function loadSerializedJsonJWS(array $data)
    {
        $jws = new JWS();
        if (array_key_exists('payload', $data)) {
            $jws = $jws->withPayload(Base64Url::decode($data['payload']));
        }

        foreach ($data['signatures'] as $signature) {
            $object = new Signature();
            $object = $object->withSignature(Base64Url::decode($signature['signature']));
            if (array_key_exists('protected', $signature)) {
                $object = $object->withEncodedProtectedHeaders($signature['protected']);
            }
            if (array_key_exists('header', $signature)) {
                $object = $object->withHeaders($signature['header']);
            }

            $jws = $jws->addSignature($object);
        }

        return $jws;
    }

    /**
     * @param array  $data
     * @param string $input
     *
     * @return \Jose\Object\JWEInterface|\Jose\Object\JWEInterface[]
     */
    private static function loadSerializedJsonJWE(array $data, $input)

    {
        $jwe = new JWE();
        $jwe = $jwe->withCiphertext(Base64Url::decode($data['ciphertext']));
        if (array_key_exists('iv', $data)) {
            $jwe = $jwe->withIV(Base64Url::decode($data['iv']));
        }
        if (array_key_exists('aad', $data)) {
            $jwe = $jwe->withAAD(Base64Url::decode($data['aad']));
        }
        if (array_key_exists('tag', $data)) {
            $jwe = $jwe->withTag(Base64Url::decode($data['tag']));
        }
        if (array_key_exists('protected', $data)) {
            $jwe = $jwe->withEncodedSharedProtectedHeaders($data['tag']);
        }
        if (array_key_exists('unprotected', $data)) {
            $jwe = $jwe->withSharedHeaders($data['unprotected']);
        }
        foreach ($data['recipients'] as $recipient) {
            $object = new Recipient();
            if (array_key_exists('header', $recipient)) {
                $object = $object->withHeaders($recipient['header']);
            }
            if (array_key_exists('encrypted_key', $recipient)) {
                $object = $object->withEncryptedKey($recipient['encrypted_key']);
            }

            $jwe = $jwe->addRecipient($object);
        }

        return $jwe;
    }

    private static function convert($input)
    {
        if (is_array($data = json_decode($input, true))) {
            if (array_key_exists('signatures', $data) || array_key_exists('recipients', $data)) {
                return $data;
            } elseif (array_key_exists('signature', $data)) {
                return self::fromFlattenedSerializationSignatureToSerialization($data);
            } elseif (array_key_exists('ciphertext', $data)) {
                return self::fromFlattenedSerializationRecipientToSerialization($data);
            }
        } elseif (is_string($input)) {
            return self::fromCompactSerializationToSerialization($input);
        }
        throw new \InvalidArgumentException('Unsupported input');
    }

    /**
     * @param $input
     *
     * @return array
     */
    private static function fromFlattenedSerializationRecipientToSerialization($input)
    {
        $recipient = [];
        foreach (['header', 'encrypted_key'] as $key) {
            if (array_key_exists($key, $input)) {
                $recipient[$key] = $input[$key];
            }
        }
        $recipients = [
            'ciphertext' => $input['ciphertext'],
            'recipients' => [$recipient],
        ];
        foreach (['ciphertext', 'protected', 'unprotected', 'iv', 'aad', 'tag'] as $key) {
            if (array_key_exists($key, $input)) {
                $recipients[$key] = $input[$key];
            }
        }

        return $recipients;
    }

    /**
     * @param $input
     *
     * @return array
     */
    private static function fromFlattenedSerializationSignatureToSerialization($input)
    {
        $signature = [
            'signature' => $input['signature'],
        ];
        foreach (['protected', 'header'] as $key) {
            if (array_key_exists($key, $input)) {
                $signature[$key] = $input[$key];
            }
        }

        $temp = [];
        if (!empty($input['payload'])) {
            $temp['payload'] = $input['payload'];
        }
        $temp['signatures'] = [$signature];

        return $temp;
    }

    /**
     * @param $input
     *
     * @return array
     */
    private static function fromCompactSerializationToSerialization($input)
    {
        $parts = explode('.', $input);
        switch (count($parts)) {
            case 3:
                return self::fromCompactSerializationSignatureToSerialization($parts);
            case 5:
                return self::fromCompactSerializationRecipientToSerialization($parts);
            default:
                throw new \InvalidArgumentException('Unsupported input');
        }
    }

    /**
     * @param array $parts
     *
     * @return array
     */
    private static function fromCompactSerializationRecipientToSerialization(array $parts)
    {
        $recipient = [];
        if (!empty($parts[1])) {
            $recipient['encrypted_key'] = $parts[1];
        }

        $recipients = [
            'recipients' => [$recipient],
        ];
        foreach ([3 => 'ciphertext', 0 => 'protected', 2 => 'iv', 4 => 'tag'] as $part => $key) {
            if (!empty($parts[$part])) {
                $recipients[$key] = $parts[$part];
            }
        }

        return $recipients;
    }

    /**
     * @param array $parts
     *
     * @return array
     */
    private static function fromCompactSerializationSignatureToSerialization(array $parts)
    {
        $temp = [];

        if (!empty($parts[1])) {
            $temp['payload'] = $parts[1];
        }
        $temp['signatures'] = [[
            'protected' => $parts[0],
            'signature' => $parts[2],
        ]];

        return $temp;
    }
}


1			<?php
2
3			/*
4			* The MIT License (MIT)
5			*
6			* Copyright (c) 2014-2015 Spomky-Labs
7			*
8			* This software may be modified and distributed under the terms
9			* of the MIT license. See the LICENSE file for details.
10			*/
11
12			namespace Jose;
13
14			use Base64Url\Base64Url;
15			use Jose\Object\JWE;
16			use Jose\Object\JWS;
17			use Jose\Object\Recipient;
18			use Jose\Object\Signature;
19
20			/**
21			* Class able to load JWS or JWE.
22			* JWS object can also be verified.
23			*/
24			final class Loader implements LoaderInterface
25			{
26			/**
27			* Loader constructor.
28			*/
29			private function __construct() {}
30
31			/**
32			* {@inheritdoc}
33			*/
34			public static function load($input)
35			{
36			$json = self::convert($input);
37			if (array_key_exists('signatures', $json)) {
38			return self::loadSerializedJsonJWS($json);
39			}
40			if (array_key_exists('recipients', $json)) {
41			return self::loadSerializedJsonJWE($json, $input);
42			}
43			throw new \InvalidArgumentException('Unable to load the input');
44			}
45
46			/**
47			* @param array $data
48			*
49			* @return \Jose\Object\JWSInterface\|\Jose\Object\JWSInterface[]
50			*/
51			private static function loadSerializedJsonJWS(array $data)
52			{
53			$jws = new JWS();
54			if (array_key_exists('payload', $data)) {
55			$jws = $jws->withPayload(Base64Url::decode($data['payload']));
56			}
57
58			foreach ($data['signatures'] as $signature) {
59			$object = new Signature();
60			$object = $object->withSignature(Base64Url::decode($signature['signature']));
61			if (array_key_exists('protected', $signature)) {
62			$object = $object->withEncodedProtectedHeaders($signature['protected']);
63			}
64			if (array_key_exists('header', $signature)) {
65			$object = $object->withHeaders($signature['header']);
66			}
67
68			$jws = $jws->addSignature($object);
69			}
70
71			return $jws;
72			}
73
74			/**
75			* @param array $data
76			* @param string $input
77			*
78			* @return \Jose\Object\JWEInterface\|\Jose\Object\JWEInterface[]
79			*/
80			private static function loadSerializedJsonJWE(array $data, $input)
			0 ignored issues – show Unused Code introduced 2016-01-26 17:34 UTC by Report Bug Copy Issue Report The parameter `$input` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
81			{
82			$jwe = new JWE();
83			$jwe = $jwe->withCiphertext(Base64Url::decode($data['ciphertext']));
84			if (array_key_exists('iv', $data)) {
85			$jwe = $jwe->withIV(Base64Url::decode($data['iv']));
86			}
87			if (array_key_exists('aad', $data)) {
88			$jwe = $jwe->withAAD(Base64Url::decode($data['aad']));
89			}
90			if (array_key_exists('tag', $data)) {
91			$jwe = $jwe->withTag(Base64Url::decode($data['tag']));
92			}
93			if (array_key_exists('protected', $data)) {
94			$jwe = $jwe->withEncodedSharedProtectedHeaders($data['tag']);
95			}
96			if (array_key_exists('unprotected', $data)) {
97			$jwe = $jwe->withSharedHeaders($data['unprotected']);
98			}
99			foreach ($data['recipients'] as $recipient) {
100			$object = new Recipient();
101			if (array_key_exists('header', $recipient)) {
102			$object = $object->withHeaders($recipient['header']);
103			}
104			if (array_key_exists('encrypted_key', $recipient)) {
105			$object = $object->withEncryptedKey($recipient['encrypted_key']);
106			}
107
108			$jwe = $jwe->addRecipient($object);
109			}
110
111			return $jwe;
112			}
113
114			private static function convert($input)
115			{
116			if (is_array($data = json_decode($input, true))) {
117			if (array_key_exists('signatures', $data) \|\| array_key_exists('recipients', $data)) {
118			return $data;
119			} elseif (array_key_exists('signature', $data)) {
120			return self::fromFlattenedSerializationSignatureToSerialization($data);
121			} elseif (array_key_exists('ciphertext', $data)) {
122			return self::fromFlattenedSerializationRecipientToSerialization($data);
123			}
124			} elseif (is_string($input)) {
125			return self::fromCompactSerializationToSerialization($input);
126			}
127			throw new \InvalidArgumentException('Unsupported input');
128			}
129
130			/**
131			* @param $input
132			*
133			* @return array
134			*/
135			private static function fromFlattenedSerializationRecipientToSerialization($input)
136			{
137			$recipient = [];
138			foreach (['header', 'encrypted_key'] as $key) {
139			if (array_key_exists($key, $input)) {
140			$recipient[$key] = $input[$key];
141			}
142			}
143			$recipients = [
144			'ciphertext' => $input['ciphertext'],
145			'recipients' => [$recipient],
146			];
147			foreach (['ciphertext', 'protected', 'unprotected', 'iv', 'aad', 'tag'] as $key) {
148			if (array_key_exists($key, $input)) {
149			$recipients[$key] = $input[$key];
150			}
151			}
152
153			return $recipients;
154			}
155
156			/**
157			* @param $input
158			*
159			* @return array
160			*/
161			private static function fromFlattenedSerializationSignatureToSerialization($input)
162			{
163			$signature = [
164			'signature' => $input['signature'],
165			];
166			foreach (['protected', 'header'] as $key) {
167			if (array_key_exists($key, $input)) {
168			$signature[$key] = $input[$key];
169			}
170			}
171
172			$temp = [];
173			if (!empty($input['payload'])) {
174			$temp['payload'] = $input['payload'];
175			}
176			$temp['signatures'] = [$signature];
177
178			return $temp;
179			}
180
181			/**
182			* @param $input
183			*
184			* @return array
185			*/
186			private static function fromCompactSerializationToSerialization($input)
187			{
188			$parts = explode('.', $input);
189			switch (count($parts)) {
190			case 3:
191			return self::fromCompactSerializationSignatureToSerialization($parts);
192			case 5:
193			return self::fromCompactSerializationRecipientToSerialization($parts);
194			default:
195			throw new \InvalidArgumentException('Unsupported input');
196			}
197			}
198
199			/**
200			* @param array $parts
201			*
202			* @return array
203			*/
204			private static function fromCompactSerializationRecipientToSerialization(array $parts)
205			{
206			$recipient = [];
207			if (!empty($parts[1])) {
208			$recipient['encrypted_key'] = $parts[1];
209			}
210
211			$recipients = [
212			'recipients' => [$recipient],
213			];
214			foreach ([3 => 'ciphertext', 0 => 'protected', 2 => 'iv', 4 => 'tag'] as $part => $key) {
215			if (!empty($parts[$part])) {
216			$recipients[$key] = $parts[$part];
217			}
218			}
219
220			return $recipients;
221			}
222
223			/**
224			* @param array $parts
225			*
226			* @return array
227			*/
228			private static function fromCompactSerializationSignatureToSerialization(array $parts)
229			{
230			$temp = [];
231
232			if (!empty($parts[1])) {
233			$temp['payload'] = $parts[1];
234			}
235			$temp['signatures'] = [[
236			'protected' => $parts[0],
237			'signature' => $parts[2],
238			]];
239
240			return $temp;
241			}
242			}
243

Spomky-Labs / jose

Push — v2.0.x ( 7a58b6 )

Loader::convert() B

Complexity

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Duplication

Importance

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