DeviceCodeGrant::validateDeviceCode() - Code Metrics - Inspection of "Fix scope on device code grant" - thephpleague/oauth2-server - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#1412)

by Andrew

created 2024-11-14 22:43 UTC

DeviceCodeGrant::validateDeviceCode() B

↳ Parent: DeviceCodeGrant

Complexity

Conditions	7
Paths	7

Size

Total Lines	35
Code Lines	17

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	15
CRAP Score	7.457

Importance

Changes

Metric	Value
cc	7
eloc	17
nc	7
nop	2
dl	0
loc	35
ccs	15
cts	19
cp	0.7895
crap	7.457
rs	8.8333
c	0
b	0
f	0

<?php

/**
 * OAuth 2.0 Device Code grant.
 *
 * @author      Andrew Millington <[email protected]>
 * @copyright   Copyright (c) Alex Bilbie
 * @license     http://mit-license.org/
 *
 * @link        https://github.com/thephpleague/oauth2-server
 */

declare(strict_types=1);

namespace League\OAuth2\Server\Grant;

use DateInterval;
use DateTimeImmutable;
use Error;
use Exception;
use League\OAuth2\Server\Entities\ClientEntityInterface;
use League\OAuth2\Server\Entities\DeviceCodeEntityInterface;
use League\OAuth2\Server\Entities\ScopeEntityInterface;
use League\OAuth2\Server\Exception\OAuthServerException;
use League\OAuth2\Server\Exception\UniqueTokenIdentifierConstraintViolationException;
use League\OAuth2\Server\Repositories\DeviceCodeRepositoryInterface;
use League\OAuth2\Server\Repositories\RefreshTokenRepositoryInterface;
use League\OAuth2\Server\RequestEvent;
use League\OAuth2\Server\ResponseTypes\DeviceCodeResponse;
use League\OAuth2\Server\ResponseTypes\ResponseTypeInterface;
use Psr\Http\Message\ServerRequestInterface;
use TypeError;

use function is_null;
use function random_int;
use function strlen;
use function time;

/**
 * Device Code grant class.
 */
class DeviceCodeGrant extends AbstractGrant
{
    protected DeviceCodeRepositoryInterface $deviceCodeRepository;
    private bool $includeVerificationUriComplete = false;
    private bool $intervalVisibility = false;
    private string $verificationUri;

    public function __construct(
        DeviceCodeRepositoryInterface $deviceCodeRepository,
        RefreshTokenRepositoryInterface $refreshTokenRepository,
        private DateInterval $deviceCodeTTL,
        string $verificationUri,
        private int $retryInterval = 5
    ) {
        $this->setDeviceCodeRepository($deviceCodeRepository);
        $this->setRefreshTokenRepository($refreshTokenRepository);

        $this->refreshTokenTTL = new DateInterval('P1M');

        $this->setVerificationUri($verificationUri);
    }

    /**
     * {@inheritdoc}
     */
    public function canRespondToDeviceAuthorizationRequest(ServerRequestInterface $request): bool
    {
        return true;
    }

    /**
     * {@inheritdoc}
     */
    public function respondToDeviceAuthorizationRequest(ServerRequestInterface $request): DeviceCodeResponse
    {
        $clientId = $this->getRequestParameter(
            'client_id',
            $request,
            $this->getServerParameter('PHP_AUTH_USER', $request)
        );

        if ($clientId === null) {
            throw OAuthServerException::invalidRequest('client_id');
        }

        $client = $this->getClientEntityOrFail($clientId, $request);

        $scopes = $this->validateScopes($this->getRequestParameter('scope', $request, $this->defaultScope));

        $deviceCodeEntity = $this->issueDeviceCode(
            $this->deviceCodeTTL,
            $client,
            $this->verificationUri,
            $scopes
        );

        $response = new DeviceCodeResponse();

        if ($this->includeVerificationUriComplete === true) {
            $response->includeVerificationUriComplete();
        }

        $response->setDeviceCodeEntity($deviceCodeEntity);

        return $response;
    }

    /**
     * {@inheritdoc}
     */
    public function completeDeviceAuthorizationRequest(string $deviceCode, string $userId, bool $userApproved): void
    {
        $deviceCode = $this->deviceCodeRepository->getDeviceCodeEntityByDeviceCode($deviceCode);

        if ($deviceCode instanceof DeviceCodeEntityInterface === false) {
            throw OAuthServerException::invalidRequest('device_code', 'Device code does not exist');
        }

        if ($userId === '') {
            throw OAuthServerException::invalidRequest('user_id', 'User ID is required');
        }

        $deviceCode->setUserIdentifier($userId);
        $deviceCode->setUserApproved($userApproved);

        $this->deviceCodeRepository->persistDeviceCode($deviceCode);
    }

    /**
     * {@inheritdoc}
     */
    public function respondToAccessTokenRequest(
        ServerRequestInterface $request,
        ResponseTypeInterface $responseType,
        DateInterval $accessTokenTTL
    ): ResponseTypeInterface {
        // Validate request
        $client = $this->validateClient($request);
        $deviceCodeEntity = $this->validateDeviceCode($request, $client);

        $deviceCodeEntity->setLastPolledAt(new DateTimeImmutable());
        $this->deviceCodeRepository->persistDeviceCode($deviceCodeEntity);

        // If device code has no user associated, respond with pending
        if (is_null($deviceCodeEntity->getUserIdentifier())) {
            throw OAuthServerException::authorizationPending();
        }

        if ($deviceCodeEntity->getUserApproved() === false) {
            throw OAuthServerException::accessDenied();
        }

        // Finalize the requested scopes
        $finalizedScopes = $this->scopeRepository->finalizeScopes($deviceCodeEntity->getScopes(), $this->getIdentifier(), $client, $deviceCodeEntity->getUserIdentifier());

        // Issue and persist new access token
        $accessToken = $this->issueAccessToken($accessTokenTTL, $client, $deviceCodeEntity->getUserIdentifier(), $finalizedScopes);
        $this->getEmitter()->emit(new RequestEvent(RequestEvent::ACCESS_TOKEN_ISSUED, $request));
        $responseType->setAccessToken($accessToken);

        // Issue and persist new refresh token if given
        $refreshToken = $this->issueRefreshToken($accessToken);

        if ($refreshToken !== null) {
            $this->getEmitter()->emit(new RequestEvent(RequestEvent::REFRESH_TOKEN_ISSUED, $request));
            $responseType->setRefreshToken($refreshToken);
        }

        $this->deviceCodeRepository->revokeDeviceCode($deviceCodeEntity->getIdentifier());

        return $responseType;
    }

    /**
     * @throws OAuthServerException
     */
    protected function validateDeviceCode(ServerRequestInterface $request, ClientEntityInterface $client): DeviceCodeEntityInterface
    {
        $deviceCode = $this->getRequestParameter('device_code', $request);

        if (is_null($deviceCode)) {
            throw OAuthServerException::invalidRequest('device_code');
        }

        $deviceCodeEntity = $this->deviceCodeRepository->getDeviceCodeEntityByDeviceCode(
            $deviceCode
        );

        if ($deviceCodeEntity instanceof DeviceCodeEntityInterface === false) {
            $this->getEmitter()->emit(new RequestEvent(RequestEvent::USER_AUTHENTICATION_FAILED, $request));

            throw OAuthServerException::invalidGrant();
        }

        if (time() > $deviceCodeEntity->getExpiryDateTime()->getTimestamp()) {
            throw OAuthServerException::expiredToken('device_code');
        }

        if ($this->deviceCodeRepository->isDeviceCodeRevoked($deviceCode) === true) {
            throw OAuthServerException::invalidRequest('device_code', 'Device code has been revoked');
        }

        if ($deviceCodeEntity->getClient()->getIdentifier() !== $client->getIdentifier()) {
            throw OAuthServerException::invalidRequest('device_code', 'Device code was not issued to this client');
        }

        if ($this->deviceCodePolledTooSoon($deviceCodeEntity->getLastPolledAt()) === true) {
            throw OAuthServerException::slowDown();
        }

        return $deviceCodeEntity;
    }

    private function deviceCodePolledTooSoon(?DateTimeImmutable $lastPoll): bool
    {
        return $lastPoll !== null && $lastPoll->getTimestamp() + $this->retryInterval > time();
    }

    /**
     * Set the verification uri
     */
    public function setVerificationUri(string $verificationUri): void
    {
        $this->verificationUri = $verificationUri;
    }

    /**
     * {@inheritdoc}
     */
    public function getIdentifier(): string
    {
        return 'urn:ietf:params:oauth:grant-type:device_code';
    }

    private function setDeviceCodeRepository(DeviceCodeRepositoryInterface $deviceCodeRepository): void
    {
        $this->deviceCodeRepository = $deviceCodeRepository;
    }

    /**
     * Issue a device code.
     *
     * @param ScopeEntityInterface[] $scopes
     *
     * @throws OAuthServerException
     * @throws UniqueTokenIdentifierConstraintViolationException
     */
    protected function issueDeviceCode(
        DateInterval $deviceCodeTTL,
        ClientEntityInterface $client,
        string $verificationUri,
        array $scopes = [],
    ): DeviceCodeEntityInterface {
        $maxGenerationAttempts = self::MAX_RANDOM_TOKEN_GENERATION_ATTEMPTS;

        $deviceCode = $this->deviceCodeRepository->getNewDeviceCode();
        $deviceCode->setExpiryDateTime((new DateTimeImmutable())->add($deviceCodeTTL));
        $deviceCode->setClient($client);
        $deviceCode->setVerificationUri($verificationUri);

        if ($this->getIntervalVisibility() === true) {
            $deviceCode->setInterval($this->retryInterval);
        }

        foreach ($scopes as $scope) {
            $deviceCode->addScope($scope);
        }

        while ($maxGenerationAttempts-- > 0) {
            $deviceCode->setIdentifier($this->generateUniqueIdentifier());
            $deviceCode->setUserCode($this->generateUserCode());

            try {
                $this->deviceCodeRepository->persistDeviceCode($deviceCode);

                return $deviceCode;
            } catch (UniqueTokenIdentifierConstraintViolationException $e) {
                if ($maxGenerationAttempts === 0) {
                    throw $e;
                }
            }
        }

        // This should never be hit. It is here to work around a PHPStan false error
        return $deviceCode;
    }

    /**
     * Generate a new user code.
     *
     * @throws OAuthServerException
     */
    protected function generateUserCode(int $length = 8): string
    {
        try {
            $userCode = '';
            $userCodeCharacters = 'BCDFGHJKLMNPQRSTVWXZ';

            while (strlen($userCode) < $length) {
                $userCode .= $userCodeCharacters[random_int(0, 19)];
            }

            return $userCode;
            // @codeCoverageIgnoreStart
        } catch (TypeError | Error $e) {
            throw OAuthServerException::serverError('An unexpected error has occurred', $e);
        } catch (Exception $e) {
            // If you get this message, the CSPRNG failed hard.
            throw OAuthServerException::serverError('Could not generate a random string', $e);
        }
        // @codeCoverageIgnoreEnd
    }

    public function setIntervalVisibility(bool $intervalVisibility): void
    {
        $this->intervalVisibility = $intervalVisibility;
    }

    public function getIntervalVisibility(): bool
    {
        return $this->intervalVisibility;
    }

    public function setIncludeVerificationUriComplete(bool $includeVerificationUriComplete): void
    {
        $this->includeVerificationUriComplete = $includeVerificationUriComplete;
    }
}


1		<?php
2
3		/**
4		* OAuth 2.0 Device Code grant.
5		*
6		* @author Andrew Millington <[email protected]>
7		* @copyright Copyright (c) Alex Bilbie
8		* @license http://mit-license.org/
9		*
10		* @link https://github.com/thephpleague/oauth2-server
11		*/
12
13		declare(strict_types=1);
14
15		namespace League\OAuth2\Server\Grant;
16
17		use DateInterval;
18		use DateTimeImmutable;
19		use Error;
20		use Exception;
21		use League\OAuth2\Server\Entities\ClientEntityInterface;
22		use League\OAuth2\Server\Entities\DeviceCodeEntityInterface;
23		use League\OAuth2\Server\Entities\ScopeEntityInterface;
24		use League\OAuth2\Server\Exception\OAuthServerException;
25		use League\OAuth2\Server\Exception\UniqueTokenIdentifierConstraintViolationException;
26		use League\OAuth2\Server\Repositories\DeviceCodeRepositoryInterface;
27		use League\OAuth2\Server\Repositories\RefreshTokenRepositoryInterface;
28		use League\OAuth2\Server\RequestEvent;
29		use League\OAuth2\Server\ResponseTypes\DeviceCodeResponse;
30		use League\OAuth2\Server\ResponseTypes\ResponseTypeInterface;
31		use Psr\Http\Message\ServerRequestInterface;
32		use TypeError;
33
34		use function is_null;
35		use function random_int;
36		use function strlen;
37		use function time;
38
39		/**
40		* Device Code grant class.
41		*/
42		class DeviceCodeGrant extends AbstractGrant
43		{
44		protected DeviceCodeRepositoryInterface $deviceCodeRepository;
45		private bool $includeVerificationUriComplete = false;
46		private bool $intervalVisibility = false;
47		private string $verificationUri;
48
49	17	public function __construct(
50		DeviceCodeRepositoryInterface $deviceCodeRepository,
51		RefreshTokenRepositoryInterface $refreshTokenRepository,
52		private DateInterval $deviceCodeTTL,
53		string $verificationUri,
54		private int $retryInterval = 5
55		) {
56	17	$this->setDeviceCodeRepository($deviceCodeRepository);
57	17	$this->setRefreshTokenRepository($refreshTokenRepository);
58
59	17	$this->refreshTokenTTL = new DateInterval('P1M');
60
61	17	$this->setVerificationUri($verificationUri);
62		}
63
64		/**
65		* {@inheritdoc}
66		*/
67	2	public function canRespondToDeviceAuthorizationRequest(ServerRequestInterface $request): bool
68		{
69	2	return true;
70		}
71
72		/**
73		* {@inheritdoc}
74		*/
75	7	public function respondToDeviceAuthorizationRequest(ServerRequestInterface $request): DeviceCodeResponse
76		{
77	7	$clientId = $this->getRequestParameter(
78	7	'client_id',
79	7	$request,
80	7	$this->getServerParameter('PHP_AUTH_USER', $request)
81	7	);
82
83	7	if ($clientId === null) {
84	2	throw OAuthServerException::invalidRequest('client_id');
85		}
86
87	5	$client = $this->getClientEntityOrFail($clientId, $request);
88
89	4	$scopes = $this->validateScopes($this->getRequestParameter('scope', $request, $this->defaultScope));
90
91	4	$deviceCodeEntity = $this->issueDeviceCode(
92	4	$this->deviceCodeTTL,
93	4	$client,
94	4	$this->verificationUri,
95	4	$scopes
96	4	);
97
98	4	$response = new DeviceCodeResponse();
99
100	4	if ($this->includeVerificationUriComplete === true) {
101	1	$response->includeVerificationUriComplete();
102		}
103
104	4	$response->setDeviceCodeEntity($deviceCodeEntity);
105
106	4	return $response;
107		}
108
109		/**
110		* {@inheritdoc}
111		*/
112	3	public function completeDeviceAuthorizationRequest(string $deviceCode, string $userId, bool $userApproved): void
113		{
114	3	$deviceCode = $this->deviceCodeRepository->getDeviceCodeEntityByDeviceCode($deviceCode);
115
116	3	if ($deviceCode instanceof DeviceCodeEntityInterface === false) {
117		throw OAuthServerException::invalidRequest('device_code', 'Device code does not exist');
118		}
119
120	3	if ($userId === '') {
121		throw OAuthServerException::invalidRequest('user_id', 'User ID is required');
122		}
123
124	3	$deviceCode->setUserIdentifier($userId);
125	3	$deviceCode->setUserApproved($userApproved);
126
127	3	$this->deviceCodeRepository->persistDeviceCode($deviceCode);
128		}
129
130		/**
131		* {@inheritdoc}
132		*/
133	7	public function respondToAccessTokenRequest(
134		ServerRequestInterface $request,
135		ResponseTypeInterface $responseType,
136		DateInterval $accessTokenTTL
137		): ResponseTypeInterface {
138		// Validate request
139	7	$client = $this->validateClient($request);
140	6	$deviceCodeEntity = $this->validateDeviceCode($request, $client);
141
142	3	$deviceCodeEntity->setLastPolledAt(new DateTimeImmutable());
143	3	$this->deviceCodeRepository->persistDeviceCode($deviceCodeEntity);
144
145		// If device code has no user associated, respond with pending
146	3	if (is_null($deviceCodeEntity->getUserIdentifier())) {
147	1	throw OAuthServerException::authorizationPending();
148		}
149
150	2	if ($deviceCodeEntity->getUserApproved() === false) {
151	1	throw OAuthServerException::accessDenied();
152		}
153
154		// Finalize the requested scopes
155	1	$finalizedScopes = $this->scopeRepository->finalizeScopes($deviceCodeEntity->getScopes(), $this->getIdentifier(), $client, $deviceCodeEntity->getUserIdentifier());
156
157		// Issue and persist new access token
158	1	$accessToken = $this->issueAccessToken($accessTokenTTL, $client, $deviceCodeEntity->getUserIdentifier(), $finalizedScopes);
159	1	$this->getEmitter()->emit(new RequestEvent(RequestEvent::ACCESS_TOKEN_ISSUED, $request));
160	1	$responseType->setAccessToken($accessToken);
161
162		// Issue and persist new refresh token if given
163	1	$refreshToken = $this->issueRefreshToken($accessToken);
164
165	1	if ($refreshToken !== null) {
166	1	$this->getEmitter()->emit(new RequestEvent(RequestEvent::REFRESH_TOKEN_ISSUED, $request));
167	1	$responseType->setRefreshToken($refreshToken);
168		}
169
170	1	$this->deviceCodeRepository->revokeDeviceCode($deviceCodeEntity->getIdentifier());
171
172	1	return $responseType;
173		}
174
175		/**
176		* @throws OAuthServerException
177		*/
178	6	protected function validateDeviceCode(ServerRequestInterface $request, ClientEntityInterface $client): DeviceCodeEntityInterface
179		{
180	6	$deviceCode = $this->getRequestParameter('device_code', $request);
181
182	6	if (is_null($deviceCode)) {
183	1	throw OAuthServerException::invalidRequest('device_code');
184		}
185
186	5	$deviceCodeEntity = $this->deviceCodeRepository->getDeviceCodeEntityByDeviceCode(
187	5	$deviceCode
188	5	);
189
190	5	if ($deviceCodeEntity instanceof DeviceCodeEntityInterface === false) {
191		$this->getEmitter()->emit(new RequestEvent(RequestEvent::USER_AUTHENTICATION_FAILED, $request));
192
193		throw OAuthServerException::invalidGrant();
194		}
195
196	5	if (time() > $deviceCodeEntity->getExpiryDateTime()->getTimestamp()) {
197	1	throw OAuthServerException::expiredToken('device_code');
198		}
199
200	4	if ($this->deviceCodeRepository->isDeviceCodeRevoked($deviceCode) === true) {
201		throw OAuthServerException::invalidRequest('device_code', 'Device code has been revoked');
202		}
203
204	4	if ($deviceCodeEntity->getClient()->getIdentifier() !== $client->getIdentifier()) {
205		throw OAuthServerException::invalidRequest('device_code', 'Device code was not issued to this client');
206		}
207
208	4	if ($this->deviceCodePolledTooSoon($deviceCodeEntity->getLastPolledAt()) === true) {
209	1	throw OAuthServerException::slowDown();
210		}
211
212	3	return $deviceCodeEntity;
213		}
214
215	4	private function deviceCodePolledTooSoon(?DateTimeImmutable $lastPoll): bool
216		{
217	4	return $lastPoll !== null && $lastPoll->getTimestamp() + $this->retryInterval > time();
218		}
219
220		/**
221		* Set the verification uri
222		*/
223	17	public function setVerificationUri(string $verificationUri): void
224		{
225	17	$this->verificationUri = $verificationUri;
226		}
227
228		/**
229		* {@inheritdoc}
230		*/
231	8	public function getIdentifier(): string
232		{
233	8	return 'urn:ietf:params:oauth:grant-type:device_code';
234		}
235
236	17	private function setDeviceCodeRepository(DeviceCodeRepositoryInterface $deviceCodeRepository): void
237		{
238	17	$this->deviceCodeRepository = $deviceCodeRepository;
239		}
240
241		/**
242		* Issue a device code.
243		*
244		* @param ScopeEntityInterface[] $scopes
245		*
246		* @throws OAuthServerException
247		* @throws UniqueTokenIdentifierConstraintViolationException
248		*/
249	4	protected function issueDeviceCode(
250		DateInterval $deviceCodeTTL,
251		ClientEntityInterface $client,
252		string $verificationUri,
253		array $scopes = [],
254		): DeviceCodeEntityInterface {
255	4	$maxGenerationAttempts = self::MAX_RANDOM_TOKEN_GENERATION_ATTEMPTS;
256
257	4	$deviceCode = $this->deviceCodeRepository->getNewDeviceCode();
258	4	$deviceCode->setExpiryDateTime((new DateTimeImmutable())->add($deviceCodeTTL));
259	4	$deviceCode->setClient($client);
260	4	$deviceCode->setVerificationUri($verificationUri);
261
262	4	if ($this->getIntervalVisibility() === true) {
263	1	$deviceCode->setInterval($this->retryInterval);
264		}
265
266	4	foreach ($scopes as $scope) {
267	4	$deviceCode->addScope($scope);
268		}
269
270	4	while ($maxGenerationAttempts-- > 0) {
271	4	$deviceCode->setIdentifier($this->generateUniqueIdentifier());
272	4	$deviceCode->setUserCode($this->generateUserCode());
273
274		try {
275	4	$this->deviceCodeRepository->persistDeviceCode($deviceCode);
276
277	4	return $deviceCode;
278		} catch (UniqueTokenIdentifierConstraintViolationException $e) {
279		if ($maxGenerationAttempts === 0) {
280		throw $e;
281		}
282		}
283		}
284
285		// This should never be hit. It is here to work around a PHPStan false error
286		return $deviceCode;
287		}
288
289		/**
290		* Generate a new user code.
291		*
292		* @throws OAuthServerException
293		*/
294	4	protected function generateUserCode(int $length = 8): string
295		{
296		try {
297	4	$userCode = '';
298	4	$userCodeCharacters = 'BCDFGHJKLMNPQRSTVWXZ';
299
300	4	while (strlen($userCode) < $length) {
301	4	$userCode .= $userCodeCharacters[random_int(0, 19)];
302		}
303
304	4	return $userCode;
305		// @codeCoverageIgnoreStart
306		} catch (TypeError \| Error $e) {
307		throw OAuthServerException::serverError('An unexpected error has occurred', $e);
308		} catch (Exception $e) {
309		// If you get this message, the CSPRNG failed hard.
310		throw OAuthServerException::serverError('Could not generate a random string', $e);
311		}
312		// @codeCoverageIgnoreEnd
313		}
314
315	1	public function setIntervalVisibility(bool $intervalVisibility): void
316		{
317	1	$this->intervalVisibility = $intervalVisibility;
318		}
319
320	4	public function getIntervalVisibility(): bool
321		{
322	4	return $this->intervalVisibility;
323		}
324
325	1	public function setIncludeVerificationUriComplete(bool $includeVerificationUriComplete): void
326		{
327	1	$this->includeVerificationUriComplete = $includeVerificationUriComplete;
328		}
329		}
330

thephpleague / oauth2-server

Pull Request — master (#1412)

DeviceCodeGrant::validateDeviceCode() B

Complexity

Size

Duplication

Code Coverage

Importance

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