Keycloak::decryptResponse() - Code Metrics - Inspection of "Fix update error" - stevenmaguire/oauth2-keycloak - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#17)

unknown

created 2020-07-24 10:05 UTC

Keycloak::decryptResponse() A

↳ Parent: Keycloak

Complexity

Conditions	3
Paths	3

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	11
CRAP Score	3

Importance

Changes

Metric	Value
dl	0
loc	21
ccs	11
cts	11
cp	1
rs	9.584
c	0
b	0
f	0
cc	3
nc	3
nop	1
crap	3

<?php

namespace Stevenmaguire\OAuth2\Client\Provider;

use Exception;
use Firebase\JWT\JWT;
use League\OAuth2\Client\Provider\AbstractProvider;
use League\OAuth2\Client\Provider\Exception\IdentityProviderException;
use League\OAuth2\Client\Token\AccessToken;
use League\OAuth2\Client\Tool\BearerAuthorizationTrait;
use Psr\Http\Message\ResponseInterface;
use Stevenmaguire\OAuth2\Client\Provider\Exception\EncryptionConfigurationException;
use UnexpectedValueException;

class Keycloak extends AbstractProvider
{
    use BearerAuthorizationTrait;

    /**
     * Keycloak URL, eg. http://localhost:8080/auth.
     *
     * @var string
     */
    public $authServerUrl = null;

    /**
     * Realm name, eg. demo.
     *
     * @var string
     */
    public $realm = null;

    /**
     * Encryption algorithm.
     *
     * You must specify supported algorithms for your application. See
     * https://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-40
     * for a list of spec-compliant algorithms.
     *
     * @var string
     */
    public $encryptionAlgorithm = null;

    /**
     * Encryption key.
     *
     * @var string
     */
    public $encryptionKey = null;

    /**
     * Constructs an OAuth 2.0 service provider.
     *
     * @param array $options An array of options to set on this provider.
     *     Options include `clientId`, `clientSecret`, `redirectUri`, and `state`.
     *     Individual providers may introduce more options, as needed.
     * @param array $collaborators An array of collaborators that may be used to
     *     override this provider's default behavior. Collaborators include
     *     `grantFactory`, `requestFactory`, `httpClient`, and `randomFactory`.
     *     Individual providers may introduce more collaborators, as needed.
     */
    public function __construct(array $options = [], array $collaborators = [])
    {
        if (isset($options['encryptionKeyPath'])) {
            $this->setEncryptionKeyPath($options['encryptionKeyPath']);
            unset($options['encryptionKeyPath']);
        }
        parent::__construct($options, $collaborators);
    }

    /**
     * Attempts to decrypt the given response.
     *
     * @param  string|array|null $response
     *
     * @return string|array|null
     */
    public function decryptResponse($response)
    {
        if (!is_string($response)) {
            return $response;
        }

        if ($this->usesEncryption()) {
            return json_decode(
                json_encode(
                    JWT::decode(
                        $response,
                        $this->encryptionKey,
                        array($this->encryptionAlgorithm)
                    )
                ),
                true
            );
        }

        throw EncryptionConfigurationException::undeterminedEncryption();
    }

    /**
     * Get authorization url to begin OAuth flow
     *
     * @return string
     */
    public function getBaseAuthorizationUrl()
    {
        return $this->getBaseUrlWithRealm().'/protocol/openid-connect/auth';
    }

    /**
     * Get access token url to retrieve token
     *
     * @param  array $params
     *
     * @return string
     */
    public function getBaseAccessTokenUrl(array $params)
    {
        return $this->getBaseUrlWithRealm().'/protocol/openid-connect/token';
    }

    /**
     * Get provider url to fetch user details
     *
     * @param  AccessToken $token
     *
     * @return string
     */
    public function getResourceOwnerDetailsUrl(AccessToken $token)
    {
        return $this->getBaseUrlWithRealm().'/protocol/openid-connect/userinfo';
    }

    /**
     * Builds the logout URL.
     *
     * @param array $options
     * @return string Authorization URL
     */
    public function getLogoutUrl(array $options = [])
    {
        $base = $this->getBaseLogoutUrl();
        $params = $this->getAuthorizationParameters($options);
        $query = $this->getAuthorizationQuery($params);
        return $this->appendQuery($base, $query);
    }

    /**
     * Get logout url to logout of session token
     *
     * @return string
     */
    private function getBaseLogoutUrl()
    {
        return $this->getBaseUrlWithRealm() . '/protocol/openid-connect/logout';
    }

    /**
     * Creates base url from provider configuration.
     *
     * @return string
     */
    protected function getBaseUrlWithRealm()
    {
        return $this->authServerUrl.'/realms/'.$this->realm;
    }

    /**
     * Get the default scopes used by this provider.
     *
     * This should not be a complete list of all scopes, but the minimum
     * required for the provider user interface!
     *
     * @return string[]
     */
    protected function getDefaultScopes()
    {
        return ['name', 'email'];
    }

    /**
     * Check a provider response for errors.
     *
     * @throws IdentityProviderException
     * @param  ResponseInterface $response
     * @param  string $data Parsed response data
     * @return void
     */
    protected function checkResponse(ResponseInterface $response, $data)
    {
        if (!empty($data['error'])) {
            $error = $data['error'].': '.$data['error_description'];
            throw new IdentityProviderException($error, 0, $data);
        }
    }

    /**
     * Generate a user object from a successful user details request.
     *
     * @param array $response
     * @param AccessToken $token
     * @return KeycloakResourceOwner
     */
    protected function createResourceOwner(array $response, AccessToken $token)
    {
        return new KeycloakResourceOwner($response);
    }

    /**
     * Requests and returns the resource owner of given access token.
     *
     * @param  AccessToken $token
     * @return KeycloakResourceOwner
     * @throws EncryptionConfigurationException
     */
    public function getResourceOwner(AccessToken $token)
    {
        $response = $this->fetchResourceOwnerDetails($token);

        // We are always getting an array. We have to check if it is
        // the array we created
        if (array_key_exists('jwt', $response)) {
            $response = $response['jwt'];
        }

        $response = $this->decryptResponse($response);

        return $this->createResourceOwner($response, $token);
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
    }

    /**
     * Updates expected encryption algorithm of Keycloak instance.
     *
     * @param string  $encryptionAlgorithm
     *
     * @return Keycloak
     */
    public function setEncryptionAlgorithm($encryptionAlgorithm)
    {
        $this->encryptionAlgorithm = $encryptionAlgorithm;

        return $this;
    }

    /**
     * Updates expected encryption key of Keycloak instance.
     *
     * @param string  $encryptionKey
     *
     * @return Keycloak
     */
    public function setEncryptionKey($encryptionKey)
    {
        $this->encryptionKey = $encryptionKey;

        return $this;
    }

    /**
     * Updates expected encryption key of Keycloak instance to content of given
     * file path.
     *
     * @param string  $encryptionKeyPath
     *
     * @return Keycloak
     */
    public function setEncryptionKeyPath($encryptionKeyPath)
    {
        try {
            $this->encryptionKey = file_get_contents($encryptionKeyPath);
        } catch (Exception $e) {
            // Not sure how to handle this yet.
        }

        return $this;
    }

    /**
     * Checks if provider is configured to use encryption.
     *
     * @return bool
     */
    public function usesEncryption()
    {
        return (bool) $this->encryptionAlgorithm && $this->encryptionKey;
    }

    /**
     * Parses the response according to its content-type header.
     *
     * @throws UnexpectedValueException
     * @param  ResponseInterface $response
     * @return array
     */
    protected function parseResponse(ResponseInterface $response)
    {
        // We have a problem with keycloak when the userinfo responses
        // with a jwt token
        // Because it just return a jwt as string with the header
        // application/jwt
        // This can't be parsed to a array
        // Dont know why this function only allow an array as return value...
        $content = (string) $response->getBody();
        $type = $this->getContentType($response);

        if (strpos($type, 'jwt') !== false) {
            // Here we make the temporary array
            return ['jwt' => $content];
        }

        return parent::parseResponse($response);
    }
}


1		<?php
2
3		namespace Stevenmaguire\OAuth2\Client\Provider;
4
5		use Exception;
6		use Firebase\JWT\JWT;
7		use League\OAuth2\Client\Provider\AbstractProvider;
8		use League\OAuth2\Client\Provider\Exception\IdentityProviderException;
9		use League\OAuth2\Client\Token\AccessToken;
10		use League\OAuth2\Client\Tool\BearerAuthorizationTrait;
11		use Psr\Http\Message\ResponseInterface;
12		use Stevenmaguire\OAuth2\Client\Provider\Exception\EncryptionConfigurationException;
13		use UnexpectedValueException;
14
15		class Keycloak extends AbstractProvider
16		{
17		use BearerAuthorizationTrait;
18
19		/**
20		* Keycloak URL, eg. http://localhost:8080/auth.
21		*
22		* @var string
23		*/
24		public $authServerUrl = null;
25
26		/**
27		* Realm name, eg. demo.
28		*
29		* @var string
30		*/
31		public $realm = null;
32
33		/**
34		* Encryption algorithm.
35		*
36		* You must specify supported algorithms for your application. See
37		* https://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-40
38		* for a list of spec-compliant algorithms.
39		*
40		* @var string
41		*/
42		public $encryptionAlgorithm = null;
43
44		/**
45		* Encryption key.
46		*
47		* @var string
48		*/
49		public $encryptionKey = null;
50
51		/**
52		* Constructs an OAuth 2.0 service provider.
53		*
54		* @param array $options An array of options to set on this provider.
55		* Options include `clientId`, `clientSecret`, `redirectUri`, and `state`.
56		* Individual providers may introduce more options, as needed.
57		* @param array $collaborators An array of collaborators that may be used to
58		* override this provider's default behavior. Collaborators include
59		* `grantFactory`, `requestFactory`, `httpClient`, and `randomFactory`.
60		* Individual providers may introduce more collaborators, as needed.
61	28	*/
62		public function __construct(array $options = [], array $collaborators = [])
63	28	{
64	4	if (isset($options['encryptionKeyPath'])) {
65	4	$this->setEncryptionKeyPath($options['encryptionKeyPath']);
66		unset($options['encryptionKeyPath']);
67	28	}
68	28	parent::__construct($options, $collaborators);
69		}
70
71		/**
72		* Attempts to decrypt the given response.
73		*
74		* @param string\|array\|null $response
75		*
76		* @return string\|array\|null
77	6	*/
78		public function decryptResponse($response)
79	6	{
80	2	if (!is_string($response)) {
81		return $response;
82		}
83	4
84	2	if ($this->usesEncryption()) {
85	2	return json_decode(
86	2	json_encode(
87	2	JWT::decode(
88	2	$response,
89	2	$this->encryptionKey,
90		array($this->encryptionAlgorithm)
91		)
92	2	),
93		true
94		);
95		}
96	2
97		throw EncryptionConfigurationException::undeterminedEncryption();
98		}
99
100		/**
101		* Get authorization url to begin OAuth flow
102		*
103		* @return string
104	6	*/
105		public function getBaseAuthorizationUrl()
106	6	{
107		return $this->getBaseUrlWithRealm().'/protocol/openid-connect/auth';
108		}
109
110		/**
111		* Get access token url to retrieve token
112		*
113		* @param array $params
114		*
115		* @return string
116	12	*/
117		public function getBaseAccessTokenUrl(array $params)
118	12	{
119		return $this->getBaseUrlWithRealm().'/protocol/openid-connect/token';
120		}
121
122		/**
123		* Get provider url to fetch user details
124		*
125		* @param AccessToken $token
126		*
127		* @return string
128	6	*/
129		public function getResourceOwnerDetailsUrl(AccessToken $token)
130	6	{
131		return $this->getBaseUrlWithRealm().'/protocol/openid-connect/userinfo';
132		}
133
134		/**
135		* Builds the logout URL.
136		*
137		* @param array $options
138		* @return string Authorization URL
139	2	*/
140		public function getLogoutUrl(array $options = [])
141	2	{
142	2	$base = $this->getBaseLogoutUrl();
143	2	$params = $this->getAuthorizationParameters($options);
144	2	$query = $this->getAuthorizationQuery($params);
145		return $this->appendQuery($base, $query);
146		}
147
148		/**
149		* Get logout url to logout of session token
150		*
151		* @return string
152	2	*/
153		private function getBaseLogoutUrl()
154	2	{
155		return $this->getBaseUrlWithRealm() . '/protocol/openid-connect/logout';
156		}
157
158		/**
159		* Creates base url from provider configuration.
160		*
161		* @return string
162	20	*/
163		protected function getBaseUrlWithRealm()
164	20	{
165		return $this->authServerUrl.'/realms/'.$this->realm;
166		}
167
168		/**
169		* Get the default scopes used by this provider.
170		*
171		* This should not be a complete list of all scopes, but the minimum
172		* required for the provider user interface!
173		*
174		* @return string[]
175	6	*/
176		protected function getDefaultScopes()
177	6	{
178		return ['name', 'email'];
179		}
180
181		/**
182		* Check a provider response for errors.
183		*
184		* @throws IdentityProviderException
185		* @param ResponseInterface $response
186		* @param string $data Parsed response data
187		* @return void
188	10	*/
189		protected function checkResponse(ResponseInterface $response, $data)
190	10	{
191	2	if (!empty($data['error'])) {
192	2	$error = $data['error'].': '.$data['error_description'];
193		throw new IdentityProviderException($error, 0, $data);
194	8	}
195		}
196
197		/**
198		* Generate a user object from a successful user details request.
199		*
200		* @param array $response
201		* @param AccessToken $token
202		* @return KeycloakResourceOwner
203	4	*/
204		protected function createResourceOwner(array $response, AccessToken $token)
205	4	{
206		return new KeycloakResourceOwner($response);
207		}
208
209		/**
210		* Requests and returns the resource owner of given access token.
211		*
212		* @param AccessToken $token
213		* @return KeycloakResourceOwner
214	6	* @throws EncryptionConfigurationException
215		*/
216	6	public function getResourceOwner(AccessToken $token)
217		{
218	6	$response = $this->fetchResourceOwnerDetails($token);
219
220	4	// We are always getting an array. We have to check if it is
221		// the array we created
222		if (array_key_exists('jwt', $response)) {
223		$response = $response['jwt'];
224		}
225
226		$response = $this->decryptResponse($response);
227
228		return $this->createResourceOwner($response, $token);
		0 ignored issues – show Bug introduced 2016-12-09 00:42 UTC by Report Bug Copy Issue Report It seems like `$response` defined by `$this->decryptResponse($response)` on line `226` can also be of type `null` or `string`; however, `Stevenmaguire\OAuth2\Cli...::createResourceOwner()` does only seem to accept `array`, maybe add an additional type check? If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check: /** * @return array\|string */ function returnsDifferentValues($x) { if ($x) { return 'foo'; } return array(); } $x = returnsDifferentValues($y); if (is_array($x)) { // $x is an array. } If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue. Loading history...
229		}
230	4
231		/**
232	4	* Updates expected encryption algorithm of Keycloak instance.
233		*
234	4	* @param string $encryptionAlgorithm
235		*
236		* @return Keycloak
237		*/
238		public function setEncryptionAlgorithm($encryptionAlgorithm)
239		{
240		$this->encryptionAlgorithm = $encryptionAlgorithm;
241
242		return $this;
243		}
244	4
245		/**
246	4	* Updates expected encryption key of Keycloak instance.
247		*
248	4	* @param string $encryptionKey
249		*
250		* @return Keycloak
251		*/
252		public function setEncryptionKey($encryptionKey)
253		{
254		$this->encryptionKey = $encryptionKey;
255
256		return $this;
257		}
258
259	4	/**
260		* Updates expected encryption key of Keycloak instance to content of given
261		* file path.
262	4	*
263	2	* @param string $encryptionKeyPath
264		*
265		* @return Keycloak
266		*/
267	4	public function setEncryptionKeyPath($encryptionKeyPath)
268		{
269		try {
270		$this->encryptionKey = file_get_contents($encryptionKeyPath);
271		} catch (Exception $e) {
272		// Not sure how to handle this yet.
273		}
274
275	4	return $this;
276		}
277	4
278		/**
279		* Checks if provider is configured to use encryption.
280		*
281		* @return bool
282		*/
283		public function usesEncryption()
284		{
285		return (bool) $this->encryptionAlgorithm && $this->encryptionKey;
286		}
287
288		/**
289		* Parses the response according to its content-type header.
290		*
291		* @throws UnexpectedValueException
292		* @param ResponseInterface $response
293		* @return array
294		*/
295		protected function parseResponse(ResponseInterface $response)
296		{
297		// We have a problem with keycloak when the userinfo responses
298		// with a jwt token
299		// Because it just return a jwt as string with the header
300		// application/jwt
301		// This can't be parsed to a array
302		// Dont know why this function only allow an array as return value...
303		$content = (string) $response->getBody();
304		$type = $this->getContentType($response);
305
306		if (strpos($type, 'jwt') !== false) {
307		// Here we make the temporary array
308		return ['jwt' => $content];
309		}
310
311		return parent::parseResponse($response);
312		}
313		}
314

stevenmaguire / oauth2-keycloak

Pull Request — master (#17)

Keycloak::decryptResponse() A

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