AuthCodeGrant::__construct() - Code Metrics - Inspection of "Introduce AuthorizationRequestInterface" - thephpleague/oauth2-server - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#1110)

by Patrick

created 2020-04-16 19:20 UTC

AuthCodeGrant::__construct() A

↳ Parent: AuthCodeGrant

Complexity

Conditions	2
Paths	2

Size

Total Lines	17
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	10
CRAP Score	2

Importance

Changes	2
Bugs	0	Features	1

Metric	Value
cc	2
eloc	9
c	2
b	0
f	1
nc	2
nop	3
dl	0
loc	17
ccs	10
cts	10
cp	1
crap	2
rs	9.9666

<?php
/**
 * @author      Alex Bilbie <[email protected]>
 * @copyright   Copyright (c) Alex Bilbie
 * @license     http://mit-license.org/
 *
 * @link        https://github.com/thephpleague/oauth2-server
 */

namespace League\OAuth2\Server\Grant;

use DateInterval;
use DateTimeImmutable;
use Exception;
use League\OAuth2\Server\CodeChallengeVerifiers\CodeChallengeVerifierInterface;
use League\OAuth2\Server\CodeChallengeVerifiers\PlainVerifier;
use League\OAuth2\Server\CodeChallengeVerifiers\S256Verifier;
use League\OAuth2\Server\Entities\ClientEntityInterface;
use League\OAuth2\Server\Entities\UserEntityInterface;
use League\OAuth2\Server\Exception\OAuthServerException;
use League\OAuth2\Server\Repositories\AuthCodeRepositoryInterface;
use League\OAuth2\Server\Repositories\RefreshTokenRepositoryInterface;
use League\OAuth2\Server\RequestEvent;
use League\OAuth2\Server\RequestTypes\AuthorizationRequest;
use League\OAuth2\Server\RequestTypes\AuthorizationRequestInterface;
use League\OAuth2\Server\ResponseTypes\RedirectResponse;
use League\OAuth2\Server\ResponseTypes\ResponseTypeInterface;
use LogicException;
use Psr\Http\Message\ServerRequestInterface;
use stdClass;

class AuthCodeGrant extends AbstractAuthorizeGrant
{
    /**
     * @var DateInterval
     */
    private $authCodeTTL;

    /**
     * @var bool
     */
    private $requireCodeChallengeForPublicClients = true;

    /**
     * @var CodeChallengeVerifierInterface[]
     */
    private $codeChallengeVerifiers = [];

    /**
     * @param AuthCodeRepositoryInterface     $authCodeRepository
     * @param RefreshTokenRepositoryInterface $refreshTokenRepository
     * @param DateInterval                    $authCodeTTL
     *
     * @throws Exception
     */
    public function __construct(
        AuthCodeRepositoryInterface $authCodeRepository,
        RefreshTokenRepositoryInterface $refreshTokenRepository,
        DateInterval $authCodeTTL
    ) {
        $this->setAuthCodeRepository($authCodeRepository);
        $this->setRefreshTokenRepository($refreshTokenRepository);
        $this->authCodeTTL = $authCodeTTL;
        $this->refreshTokenTTL = new DateInterval('P1M');

        if (\in_array('sha256', \hash_algos(), true)) {
            $s256Verifier = new S256Verifier();
            $this->codeChallengeVerifiers[$s256Verifier->getMethod()] = $s256Verifier;
        }

        $plainVerifier = new PlainVerifier();
        $this->codeChallengeVerifiers[$plainVerifier->getMethod()] = $plainVerifier;
    }

    /**
     * Disable the requirement for a code challenge for public clients.
     */
    public function disableRequireCodeChallengeForPublicClients()
    {
        $this->requireCodeChallengeForPublicClients = false;
    }

    /**
     * Respond to an access token request.
     *
     * @param ServerRequestInterface $request
     * @param ResponseTypeInterface  $responseType
     * @param DateInterval           $accessTokenTTL
     *
     * @throws OAuthServerException
     *
     * @return ResponseTypeInterface
     */
    public function respondToAccessTokenRequest(
        ServerRequestInterface $request,
        ResponseTypeInterface $responseType,
        DateInterval $accessTokenTTL
    ) {
        list($clientId) = $this->getClientCredentials($request);

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

        // Only validate the client if it is confidential
        if ($client->isConfidential()) {
            $this->validateClient($request);
        }

        $encryptedAuthCode = $this->getRequestParameter('code', $request, null);

        if ($encryptedAuthCode === null) {
            throw OAuthServerException::invalidRequest('code');
        }

        try {
            $authCodePayload = \json_decode($this->decrypt($encryptedAuthCode));

            $this->validateAuthorizationCode($authCodePayload, $client, $request);

            $scopes = $this->scopeRepository->finalizeScopes(
                $this->validateScopes($authCodePayload->scopes),
                $this->getIdentifier(),
                $client,
                $authCodePayload->user_id
            );
        } catch (LogicException $e) {
            throw OAuthServerException::invalidRequest('code', 'Cannot decrypt the authorization code', $e);
        }

        // Validate code challenge
        if (!empty($authCodePayload->code_challenge)) {
            $codeVerifier = $this->getRequestParameter('code_verifier', $request, null);

            if ($codeVerifier === null) {
                throw OAuthServerException::invalidRequest('code_verifier');
            }

            // Validate code_verifier according to RFC-7636
            // @see: https://tools.ietf.org/html/rfc7636#section-4.1
            if (\preg_match('/^[A-Za-z0-9-._~]{43,128}$/', $codeVerifier) !== 1) {
                throw OAuthServerException::invalidRequest(
                    'code_verifier',
                    'Code Verifier must follow the specifications of RFC-7636.'
                );
            }

            if (\property_exists($authCodePayload, 'code_challenge_method')) {
                if (isset($this->codeChallengeVerifiers[$authCodePayload->code_challenge_method])) {
                    $codeChallengeVerifier = $this->codeChallengeVerifiers[$authCodePayload->code_challenge_method];

                    if ($codeChallengeVerifier->verifyCodeChallenge($codeVerifier, $authCodePayload->code_challenge) === false) {
                        throw OAuthServerException::invalidGrant('Failed to verify `code_verifier`.');
                    }
                } else {
                    throw OAuthServerException::serverError(
                        \sprintf(
                            'Unsupported code challenge method `%s`',
                            $authCodePayload->code_challenge_method
                        )
                    );
                }
            }
        }

        // Issue and persist new access token
        $accessToken = $this->issueAccessToken($accessTokenTTL, $client, $authCodePayload->user_id, $scopes);
        $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);
        }

        // Revoke used auth code
        $this->authCodeRepository->revokeAuthCode($authCodePayload->auth_code_id);

        return $responseType;
    }

    /**
     * Validate the authorization code.
     *
     * @param stdClass               $authCodePayload
     * @param ClientEntityInterface  $client
     * @param ServerRequestInterface $request
     */
    private function validateAuthorizationCode(
        $authCodePayload,
        ClientEntityInterface $client,
        ServerRequestInterface $request
    ) {
        if (!\property_exists($authCodePayload, 'auth_code_id')) {
            throw OAuthServerException::invalidRequest('code', 'Authorization code malformed');
        }

        if (\time() > $authCodePayload->expire_time) {
            throw OAuthServerException::invalidRequest('code', 'Authorization code has expired');
        }

        if ($this->authCodeRepository->isAuthCodeRevoked($authCodePayload->auth_code_id) === true) {
            throw OAuthServerException::invalidRequest('code', 'Authorization code has been revoked');
        }

        if ($authCodePayload->client_id !== $client->getIdentifier()) {
            throw OAuthServerException::invalidRequest('code', 'Authorization code was not issued to this client');
        }

        // The redirect URI is required in this request
        $redirectUri = $this->getRequestParameter('redirect_uri', $request, null);
        if (empty($authCodePayload->redirect_uri) === false && $redirectUri === null) {
            throw OAuthServerException::invalidRequest('redirect_uri');
        }

        if ($authCodePayload->redirect_uri !== $redirectUri) {
            throw OAuthServerException::invalidRequest('redirect_uri', 'Invalid redirect URI');
        }
    }

    /**
     * Return the grant identifier that can be used in matching up requests.
     *
     * @return string
     */
    public function getIdentifier()
    {
        return 'authorization_code';
    }

    /**
     * {@inheritdoc}
     */
    public function canRespondToAuthorizationRequest(ServerRequestInterface $request)
    {
        return (
            \array_key_exists('response_type', $request->getQueryParams())
            && $request->getQueryParams()['response_type'] === 'code'
            && isset($request->getQueryParams()['client_id'])
        );
    }

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

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

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

        $redirectUri = $this->getQueryStringParameter('redirect_uri', $request);

        if ($redirectUri !== null) {
            $this->validateRedirectUri($redirectUri, $client, $request);
        } elseif (empty($client->getRedirectUri()) ||
            (\is_array($client->getRedirectUri()) && \count($client->getRedirectUri()) !== 1)) {
            $this->getEmitter()->emit(new RequestEvent(RequestEvent::CLIENT_AUTHENTICATION_FAILED, $request));
            throw OAuthServerException::invalidClient($request);
        }

        $defaultClientRedirectUri = \is_array($client->getRedirectUri())
            ? $client->getRedirectUri()[0]
            : $client->getRedirectUri();

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

        $stateParameter = $this->getQueryStringParameter('state', $request);

        $authorizationRequest = new AuthorizationRequest();
        $authorizationRequest->setGrantTypeId($this->getIdentifier());
        $authorizationRequest->setClient($client);
        $authorizationRequest->setRedirectUri($redirectUri);

        if ($stateParameter !== null) {
            $authorizationRequest->setState($stateParameter);
        }

        $authorizationRequest->setScopes($scopes);

        $codeChallenge = $this->getQueryStringParameter('code_challenge', $request);

        if ($codeChallenge !== null) {
            $codeChallengeMethod = $this->getQueryStringParameter('code_challenge_method', $request, 'plain');

            if (\array_key_exists($codeChallengeMethod, $this->codeChallengeVerifiers) === false) {
                throw OAuthServerException::invalidRequest(
                    'code_challenge_method',
                    'Code challenge method must be one of ' . \implode(', ', \array_map(
                        function ($method) {
                            return '`' . $method . '`';
                        },
                        \array_keys($this->codeChallengeVerifiers)
                    ))
                );
            }

            // Validate code_challenge according to RFC-7636
            // @see: https://tools.ietf.org/html/rfc7636#section-4.2
            if (\preg_match('/^[A-Za-z0-9-._~]{43,128}$/', $codeChallenge) !== 1) {
                throw OAuthServerException::invalidRequest(
                    'code_challenged',
                    'Code challenge must follow the specifications of RFC-7636.'
                );
            }

            $authorizationRequest->setCodeChallenge($codeChallenge);
            $authorizationRequest->setCodeChallengeMethod($codeChallengeMethod);
        } elseif ($this->requireCodeChallengeForPublicClients && !$client->isConfidential()) {
            throw OAuthServerException::invalidRequest('code_challenge', 'Code challenge must be provided for public clients');
        }

        return $authorizationRequest;
    }

    /**
     * {@inheritdoc}
     */
    public function completeAuthorizationRequest(AuthorizationRequestInterface $authorizationRequest)
    {
        if ($authorizationRequest->getUser() instanceof UserEntityInterface === false) {
            throw new LogicException('An instance of UserEntityInterface should be set on the AuthorizationRequest');
        }

        $finalRedirectUri = $authorizationRequest->getRedirectUri()
                          ?? $this->getClientRedirectUri($authorizationRequest);

        // The user approved the client, redirect them back with an auth code
        if ($authorizationRequest->isAuthorizationApproved() === true) {
            $authCode = $this->issueAuthCode(
                $this->authCodeTTL,
                $authorizationRequest->getClient(),
                $authorizationRequest->getUser()->getIdentifier(),
                $authorizationRequest->getRedirectUri(),
                $authorizationRequest->getScopes()
            );

            $payload = [
                'client_id'             => $authCode->getClient()->getIdentifier(),
                'redirect_uri'          => $authCode->getRedirectUri(),
                'auth_code_id'          => $authCode->getIdentifier(),
                'scopes'                => $authCode->getScopes(),
                'user_id'               => $authCode->getUserIdentifier(),
                'expire_time'           => (new DateTimeImmutable())->add($this->authCodeTTL)->getTimestamp(),
                'code_challenge'        => $authorizationRequest->getCodeChallenge(),
                'code_challenge_method' => $authorizationRequest->getCodeChallengeMethod(),
            ];

            $jsonPayload = \json_encode($payload);

            if ($jsonPayload === false) {
                throw new LogicException('An error was encountered when JSON encoding the authorization request response');
            }

            $response = new RedirectResponse();
            $response->setRedirectUri(
                $this->makeRedirectUri(
                    $finalRedirectUri,
                    [
                        'code'  => $this->encrypt($jsonPayload),
                        'state' => $authorizationRequest->getState(),
                    ]
                )
            );

            return $response;
        }

        // The user denied the client, redirect them back with an error
        throw OAuthServerException::accessDenied(
            'The user denied the request',
            $this->makeRedirectUri(
                $finalRedirectUri,
                [
                    'state' => $authorizationRequest->getState(),
                ]
            )
        );
    }

    /**
     * Get the client redirect URI if not set in the request.
     *
     * @param AuthorizationRequestInterface $authorizationRequest
     *
     * @return string
     */
    private function getClientRedirectUri(AuthorizationRequestInterface $authorizationRequest)
    {
        return \is_array($authorizationRequest->getClient()->getRedirectUri())
                ? $authorizationRequest->getClient()->getRedirectUri()[0]
                : $authorizationRequest->getClient()->getRedirectUri();
    }
}


1		<?php
2		/**
3		* @author Alex Bilbie <[email protected]>
4		* @copyright Copyright (c) Alex Bilbie
5		* @license http://mit-license.org/
6		*
7		* @link https://github.com/thephpleague/oauth2-server
8		*/
9
10		namespace League\OAuth2\Server\Grant;
11
12		use DateInterval;
13		use DateTimeImmutable;
14		use Exception;
15		use League\OAuth2\Server\CodeChallengeVerifiers\CodeChallengeVerifierInterface;
16		use League\OAuth2\Server\CodeChallengeVerifiers\PlainVerifier;
17		use League\OAuth2\Server\CodeChallengeVerifiers\S256Verifier;
18		use League\OAuth2\Server\Entities\ClientEntityInterface;
19		use League\OAuth2\Server\Entities\UserEntityInterface;
20		use League\OAuth2\Server\Exception\OAuthServerException;
21		use League\OAuth2\Server\Repositories\AuthCodeRepositoryInterface;
22		use League\OAuth2\Server\Repositories\RefreshTokenRepositoryInterface;
23		use League\OAuth2\Server\RequestEvent;
24		use League\OAuth2\Server\RequestTypes\AuthorizationRequest;
25		use League\OAuth2\Server\RequestTypes\AuthorizationRequestInterface;
26		use League\OAuth2\Server\ResponseTypes\RedirectResponse;
27		use League\OAuth2\Server\ResponseTypes\ResponseTypeInterface;
28		use LogicException;
29		use Psr\Http\Message\ServerRequestInterface;
30		use stdClass;
31
32		class AuthCodeGrant extends AbstractAuthorizeGrant
33		{
34		/**
35		* @var DateInterval
36		*/
37		private $authCodeTTL;
38
39		/**
40		* @var bool
41		*/
42		private $requireCodeChallengeForPublicClients = true;
43
44		/**
45		* @var CodeChallengeVerifierInterface[]
46		*/
47		private $codeChallengeVerifiers = [];
48
49		/**
50		* @param AuthCodeRepositoryInterface $authCodeRepository
51		* @param RefreshTokenRepositoryInterface $refreshTokenRepository
52		* @param DateInterval $authCodeTTL
53		*
54		* @throws Exception
55		*/
56	47	public function __construct(
57		AuthCodeRepositoryInterface $authCodeRepository,
58		RefreshTokenRepositoryInterface $refreshTokenRepository,
59		DateInterval $authCodeTTL
60		) {
61	47	$this->setAuthCodeRepository($authCodeRepository);
62	47	$this->setRefreshTokenRepository($refreshTokenRepository);
63	47	$this->authCodeTTL = $authCodeTTL;
64	47	$this->refreshTokenTTL = new DateInterval('P1M');
65
66	47	if (\in_array('sha256', \hash_algos(), true)) {
67	47	$s256Verifier = new S256Verifier();
68	47	$this->codeChallengeVerifiers[$s256Verifier->getMethod()] = $s256Verifier;
69		}
70
71	47	$plainVerifier = new PlainVerifier();
72	47	$this->codeChallengeVerifiers[$plainVerifier->getMethod()] = $plainVerifier;
73	47	}
74
75		/**
76		* Disable the requirement for a code challenge for public clients.
77		*/
78		public function disableRequireCodeChallengeForPublicClients()
79		{
80		$this->requireCodeChallengeForPublicClients = false;
81		}
82
83		/**
84		* Respond to an access token request.
85		*
86		* @param ServerRequestInterface $request
87		* @param ResponseTypeInterface $responseType
88		* @param DateInterval $accessTokenTTL
89		*
90		* @throws OAuthServerException
91		*
92		* @return ResponseTypeInterface
93		*/
94	22	public function respondToAccessTokenRequest(
95		ServerRequestInterface $request,
96		ResponseTypeInterface $responseType,
97		DateInterval $accessTokenTTL
98		) {
99	22	list($clientId) = $this->getClientCredentials($request);
100
101	22	$client = $this->getClientEntityOrFail($clientId, $request);
102
103		// Only validate the client if it is confidential
104	22	if ($client->isConfidential()) {
105	14	$this->validateClient($request);
106		}
107
108	22	$encryptedAuthCode = $this->getRequestParameter('code', $request, null);
109
110	22	if ($encryptedAuthCode === null) {
111	1	throw OAuthServerException::invalidRequest('code');
112		}
113
114		try {
115	21	$authCodePayload = \json_decode($this->decrypt($encryptedAuthCode));
116
117	20	$this->validateAuthorizationCode($authCodePayload, $client, $request);
118
119	14	$scopes = $this->scopeRepository->finalizeScopes(
120	14	$this->validateScopes($authCodePayload->scopes),
121	14	$this->getIdentifier(),
122	14	$client,
123	14	$authCodePayload->user_id
124		);
125	7	} catch (LogicException $e) {
126	1	throw OAuthServerException::invalidRequest('code', 'Cannot decrypt the authorization code', $e);
127		}
128
129		// Validate code challenge
130	14	if (!empty($authCodePayload->code_challenge)) {
131	7	$codeVerifier = $this->getRequestParameter('code_verifier', $request, null);
132
133	7	if ($codeVerifier === null) {
134	1	throw OAuthServerException::invalidRequest('code_verifier');
135		}
136
137		// Validate code_verifier according to RFC-7636
138		// @see: https://tools.ietf.org/html/rfc7636#section-4.1
139	6	if (\preg_match('/^[A-Za-z0-9-._~]{43,128}$/', $codeVerifier) !== 1) {
140	3	throw OAuthServerException::invalidRequest(
141	3	'code_verifier',
142	3	'Code Verifier must follow the specifications of RFC-7636.'
143		);
144		}
145
146	3	if (\property_exists($authCodePayload, 'code_challenge_method')) {
147	3	if (isset($this->codeChallengeVerifiers[$authCodePayload->code_challenge_method])) {
148	3	$codeChallengeVerifier = $this->codeChallengeVerifiers[$authCodePayload->code_challenge_method];
149
150	3	if ($codeChallengeVerifier->verifyCodeChallenge($codeVerifier, $authCodePayload->code_challenge) === false) {
151	3	throw OAuthServerException::invalidGrant('Failed to verify `code_verifier`.');
152		}
153		} else {
154		throw OAuthServerException::serverError(
155		\sprintf(
156		'Unsupported code challenge method `%s`',
157		$authCodePayload->code_challenge_method
158		)
159		);
160		}
161		}
162		}
163
164		// Issue and persist new access token
165	9	$accessToken = $this->issueAccessToken($accessTokenTTL, $client, $authCodePayload->user_id, $scopes);
166	9	$this->getEmitter()->emit(new RequestEvent(RequestEvent::ACCESS_TOKEN_ISSUED, $request));
167	9	$responseType->setAccessToken($accessToken);
168
169		// Issue and persist new refresh token if given
170	9	$refreshToken = $this->issueRefreshToken($accessToken);
171
172	7	if ($refreshToken !== null) {
173	6	$this->getEmitter()->emit(new RequestEvent(RequestEvent::REFRESH_TOKEN_ISSUED, $request));
174	6	$responseType->setRefreshToken($refreshToken);
175		}
176
177		// Revoke used auth code
178	7	$this->authCodeRepository->revokeAuthCode($authCodePayload->auth_code_id);
179
180	7	return $responseType;
181		}
182
183		/**
184		* Validate the authorization code.
185		*
186		* @param stdClass $authCodePayload
187		* @param ClientEntityInterface $client
188		* @param ServerRequestInterface $request
189		*/
190	20	private function validateAuthorizationCode(
191		$authCodePayload,
192		ClientEntityInterface $client,
193		ServerRequestInterface $request
194		) {
195	20	if (!\property_exists($authCodePayload, 'auth_code_id')) {
196	1	throw OAuthServerException::invalidRequest('code', 'Authorization code malformed');
197		}
198
199	19	if (\time() > $authCodePayload->expire_time) {
200	1	throw OAuthServerException::invalidRequest('code', 'Authorization code has expired');
201		}
202
203	18	if ($this->authCodeRepository->isAuthCodeRevoked($authCodePayload->auth_code_id) === true) {
204	1	throw OAuthServerException::invalidRequest('code', 'Authorization code has been revoked');
205		}
206
207	17	if ($authCodePayload->client_id !== $client->getIdentifier()) {
208	1	throw OAuthServerException::invalidRequest('code', 'Authorization code was not issued to this client');
209		}
210
211		// The redirect URI is required in this request
212	16	$redirectUri = $this->getRequestParameter('redirect_uri', $request, null);
213	16	if (empty($authCodePayload->redirect_uri) === false && $redirectUri === null) {
214	1	throw OAuthServerException::invalidRequest('redirect_uri');
215		}
216
217	15	if ($authCodePayload->redirect_uri !== $redirectUri) {
218	1	throw OAuthServerException::invalidRequest('redirect_uri', 'Invalid redirect URI');
219		}
220	14	}
221
222		/**
223		* Return the grant identifier that can be used in matching up requests.
224		*
225		* @return string
226		*/
227	33	public function getIdentifier()
228		{
229	33	return 'authorization_code';
230		}
231
232		/**
233		* {@inheritdoc}
234		*/
235	3	public function canRespondToAuthorizationRequest(ServerRequestInterface $request)
236		{
237		return (
238	3	\array_key_exists('response_type', $request->getQueryParams())
239	3	&& $request->getQueryParams()['response_type'] === 'code'
240	3	&& isset($request->getQueryParams()['client_id'])
241		);
242		}
243
244		/**
245		* {@inheritdoc}
246		*/
247	15	public function validateAuthorizationRequest(ServerRequestInterface $request)
248		{
249	15	$clientId = $this->getQueryStringParameter(
250	15	'client_id',
251	15	$request,
252	15	$this->getServerParameter('PHP_AUTH_USER', $request)
253		);
254
255	15	if ($clientId === null) {
256	1	throw OAuthServerException::invalidRequest('client_id');
257		}
258
259	14	$client = $this->getClientEntityOrFail($clientId, $request);
260
261	13	$redirectUri = $this->getQueryStringParameter('redirect_uri', $request);
262
263	13	if ($redirectUri !== null) {
264	10	$this->validateRedirectUri($redirectUri, $client, $request);
265	3	} elseif (empty($client->getRedirectUri()) \|\|
266	3	(\is_array($client->getRedirectUri()) && \count($client->getRedirectUri()) !== 1)) {
267	1	$this->getEmitter()->emit(new RequestEvent(RequestEvent::CLIENT_AUTHENTICATION_FAILED, $request));
268	1	throw OAuthServerException::invalidClient($request);
269		}
270
271	10	$defaultClientRedirectUri = \is_array($client->getRedirectUri())
272	1	? $client->getRedirectUri()[0]
273	10	: $client->getRedirectUri();
274
275	10	$scopes = $this->validateScopes(
276	10	$this->getQueryStringParameter('scope', $request, $this->defaultScope),
277	10	$defaultClientRedirectUri
278		);
279
280	10	$stateParameter = $this->getQueryStringParameter('state', $request);
281
282	10	$authorizationRequest = new AuthorizationRequest();
283	10	$authorizationRequest->setGrantTypeId($this->getIdentifier());
284	10	$authorizationRequest->setClient($client);
285	10	$authorizationRequest->setRedirectUri($redirectUri);
286
287	10	if ($stateParameter !== null) {
288	1	$authorizationRequest->setState($stateParameter);
289		}
290
291	10	$authorizationRequest->setScopes($scopes);
292
293	10	$codeChallenge = $this->getQueryStringParameter('code_challenge', $request);
294
295	10	if ($codeChallenge !== null) {
296	5	$codeChallengeMethod = $this->getQueryStringParameter('code_challenge_method', $request, 'plain');
297
298	5	if (\array_key_exists($codeChallengeMethod, $this->codeChallengeVerifiers) === false) {
299	1	throw OAuthServerException::invalidRequest(
300	1	'code_challenge_method',
301	1	'Code challenge method must be one of ' . \implode(', ', \array_map(
302		function ($method) {
303	1	return '`' . $method . '`';
304	1	},
305	1	\array_keys($this->codeChallengeVerifiers)
306		))
307		);
308		}
309
310		// Validate code_challenge according to RFC-7636
311		// @see: https://tools.ietf.org/html/rfc7636#section-4.2
312	4	if (\preg_match('/^[A-Za-z0-9-._~]{43,128}$/', $codeChallenge) !== 1) {
313	3	throw OAuthServerException::invalidRequest(
314	3	'code_challenged',
315	3	'Code challenge must follow the specifications of RFC-7636.'
316		);
317		}
318
319	1	$authorizationRequest->setCodeChallenge($codeChallenge);
320	1	$authorizationRequest->setCodeChallengeMethod($codeChallengeMethod);
321	5	} elseif ($this->requireCodeChallengeForPublicClients && !$client->isConfidential()) {
322	1	throw OAuthServerException::invalidRequest('code_challenge', 'Code challenge must be provided for public clients');
323		}
324
325	5	return $authorizationRequest;
326		}
327
328		/**
329		* {@inheritdoc}
330		*/
331	8	public function completeAuthorizationRequest(AuthorizationRequestInterface $authorizationRequest)
332		{
333	8	if ($authorizationRequest->getUser() instanceof UserEntityInterface === false) {
334	1	throw new LogicException('An instance of UserEntityInterface should be set on the AuthorizationRequest');
335		}
336
337	7	$finalRedirectUri = $authorizationRequest->getRedirectUri()
338	7	?? $this->getClientRedirectUri($authorizationRequest);
339
340		// The user approved the client, redirect them back with an auth code
341	7	if ($authorizationRequest->isAuthorizationApproved() === true) {
342	6	$authCode = $this->issueAuthCode(
343	6	$this->authCodeTTL,
344	6	$authorizationRequest->getClient(),
345	6	$authorizationRequest->getUser()->getIdentifier(),
346	6	$authorizationRequest->getRedirectUri(),
347	6	$authorizationRequest->getScopes()
348		);
349
350		$payload = [
351	4	'client_id' => $authCode->getClient()->getIdentifier(),
352	4	'redirect_uri' => $authCode->getRedirectUri(),
353	4	'auth_code_id' => $authCode->getIdentifier(),
354	4	'scopes' => $authCode->getScopes(),
355	4	'user_id' => $authCode->getUserIdentifier(),
356	4	'expire_time' => (new DateTimeImmutable())->add($this->authCodeTTL)->getTimestamp(),
357	4	'code_challenge' => $authorizationRequest->getCodeChallenge(),
358	4	'code_challenge_method' => $authorizationRequest->getCodeChallengeMethod(),
359		];
360
361	4	$jsonPayload = \json_encode($payload);
362
363	4	if ($jsonPayload === false) {
364		throw new LogicException('An error was encountered when JSON encoding the authorization request response');
365		}
366
367	4	$response = new RedirectResponse();
368	4	$response->setRedirectUri(
369	4	$this->makeRedirectUri(
370	4	$finalRedirectUri,
371		[
372	4	'code' => $this->encrypt($jsonPayload),
373	4	'state' => $authorizationRequest->getState(),
374		]
375		)
376		);
377
378	4	return $response;
379		}
380
381		// The user denied the client, redirect them back with an error
382	1	throw OAuthServerException::accessDenied(
383	1	'The user denied the request',
384	1	$this->makeRedirectUri(
385	1	$finalRedirectUri,
386		[
387	1	'state' => $authorizationRequest->getState(),
388		]
389		)
390		);
391		}
392
393		/**
394		* Get the client redirect URI if not set in the request.
395		*
396		* @param AuthorizationRequestInterface $authorizationRequest
397		*
398		* @return string
399		*/
400	7	private function getClientRedirectUri(AuthorizationRequestInterface $authorizationRequest)
401		{
402	7	return \is_array($authorizationRequest->getClient()->getRedirectUri())
403	1	? $authorizationRequest->getClient()->getRedirectUri()[0]
404	7	: $authorizationRequest->getClient()->getRedirectUri();
405		}
406		}
407

thephpleague / oauth2-server

Pull Request — master (#1110)

AuthCodeGrant::__construct() A

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