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Stricter validation of code challenge value to match RFC 7636 requirements

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This commit is contained in:
Alex Bilbie 2017-06-16 16:52:36 +01:00
parent 6bdd108145
commit 57d199b889
2 changed files with 119 additions and 1 deletions
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7
src/Grant/AuthCodeGrant.php
View File

@ -264,6 +264,13 @@ class AuthCodeGrant extends AbstractAuthorizeGrant
throw OAuthServerException::invalidRequest('code_challenge'); throw OAuthServerException::invalidRequest('code_challenge');
} }
if (preg_match("/^[A-Za-z0-9-._~]{43,128}$/", $codeChallenge) !== 1) {
throw OAuthServerException::invalidRequest(
'code_challenge',
'The code_challenge must be between 43 and 128 characters'
);
}
$codeChallengeMethod = $this->getQueryStringParameter('code_challenge_method', $request, 'plain'); $codeChallengeMethod = $this->getQueryStringParameter('code_challenge_method', $request, 'plain');
if (in_array($codeChallengeMethod, ['plain', 'S256']) === false) { if (in_array($codeChallengeMethod, ['plain', 'S256']) === false) {
throw OAuthServerException::invalidRequest( throw OAuthServerException::invalidRequest(

113
tests/Grant/AuthCodeGrantTest.php
View File

@ -164,13 +164,124 @@ class AuthCodeGrantTest extends \PHPUnit_Framework_TestCase
'response_type' => 'code', 'response_type' => 'code',
'client_id' => 'foo', 'client_id' => 'foo',
'redirect_uri' => 'http://foo/bar', 'redirect_uri' => 'http://foo/bar',
'code_challenge' => 'FOOBAR', 'code_challenge' => str_repeat('A', 43),
] ]
); );
$this->assertTrue($grant->validateAuthorizationRequest($request) instanceof AuthorizationRequest); $this->assertTrue($grant->validateAuthorizationRequest($request) instanceof AuthorizationRequest);
} }
/**
* @expectedException \League\OAuth2\Server\Exception\OAuthServerException
*/
public function testValidateAuthorizationRequestCodeChallengeInvalidLengthTooShort()
{
$client = new ClientEntity();
$client->setRedirectUri('http://foo/bar');
$clientRepositoryMock = $this->getMockBuilder(ClientRepositoryInterface::class)->getMock();
$clientRepositoryMock->method('getClientEntity')->willReturn($client);
$grant = new AuthCodeGrant(
$this->getMockBuilder(AuthCodeRepositoryInterface::class)->getMock(),
$this->getMockBuilder(RefreshTokenRepositoryInterface::class)->getMock(),
new \DateInterval('PT10M')
);
$grant->enableCodeExchangeProof();
$grant->setClientRepository($clientRepositoryMock);
$request = new ServerRequest(
[],
[],
null,
null,
'php://input',
[],
[],
[
'response_type' => 'code',
'client_id' => 'foo',
'redirect_uri' => 'http://foo/bar',
'code_challenge' => str_repeat('A', 42),
]
);
$grant->validateAuthorizationRequest($request);
}
/**
* @expectedException \League\OAuth2\Server\Exception\OAuthServerException
*/
public function testValidateAuthorizationRequestCodeChallengeInvalidLengthTooLong()
{
$client = new ClientEntity();
$client->setRedirectUri('http://foo/bar');
$clientRepositoryMock = $this->getMockBuilder(ClientRepositoryInterface::class)->getMock();
$clientRepositoryMock->method('getClientEntity')->willReturn($client);
$grant = new AuthCodeGrant(
$this->getMockBuilder(AuthCodeRepositoryInterface::class)->getMock(),
$this->getMockBuilder(RefreshTokenRepositoryInterface::class)->getMock(),
new \DateInterval('PT10M')
);
$grant->enableCodeExchangeProof();
$grant->setClientRepository($clientRepositoryMock);
$request = new ServerRequest(
[],
[],
null,
null,
'php://input',
[],
[],
[
'response_type' => 'code',
'client_id' => 'foo',
'redirect_uri' => 'http://foo/bar',
'code_challenge' => str_repeat('A', 129),
]
);
$grant->validateAuthorizationRequest($request);
}
/**
* @expectedException \League\OAuth2\Server\Exception\OAuthServerException
*/
public function testValidateAuthorizationRequestCodeChallengeInvalidCharacters()
{
$client = new ClientEntity();
$client->setRedirectUri('http://foo/bar');
$clientRepositoryMock = $this->getMockBuilder(ClientRepositoryInterface::class)->getMock();
$clientRepositoryMock->method('getClientEntity')->willReturn($client);
$grant = new AuthCodeGrant(
$this->getMockBuilder(AuthCodeRepositoryInterface::class)->getMock(),
$this->getMockBuilder(RefreshTokenRepositoryInterface::class)->getMock(),
new \DateInterval('PT10M')
);
$grant->enableCodeExchangeProof();
$grant->setClientRepository($clientRepositoryMock);
$request = new ServerRequest(
[],
[],
null,
null,
'php://input',
[],
[],
[
'response_type' => 'code',
'client_id' => 'foo',
'redirect_uri' => 'http://foo/bar',
'code_challenge' => str_repeat('A', 42) . '!',
]
);
$grant->validateAuthorizationRequest($request);
}
/** /**
* @expectedException \League\OAuth2\Server\Exception\OAuthServerException * @expectedException \League\OAuth2\Server\Exception\OAuthServerException
* @expectedExceptionCode 3 * @expectedExceptionCode 3