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<?php |
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namespace SAML2\Assertion; |
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use Psr\Log\LoggerInterface; |
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use SAML2\Assertion\Exception\NotDecryptedException; |
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use SAML2\Certificate\PrivateKeyLoader; |
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use SAML2\Configuration\IdentityProvider; |
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use SAML2\Configuration\ServiceProvider; |
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use SAML2\EncryptedAssertion; |
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class Decrypter |
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{ |
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/** |
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* @var \SAML2\Configuration\IdentityProvider |
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*/ |
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private $identityProvider; |
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/** |
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* @var \SAML2\Configuration\ServiceProvider |
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*/ |
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private $serviceProvider; |
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/** |
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* @var \SAML2\Certificate\PrivateKeyLoader |
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*/ |
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private $privateKeyLoader; |
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/** |
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* @var \Psr\Log\LoggerInterface |
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*/ |
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private $logger; |
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public function __construct( |
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LoggerInterface $logger, |
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IdentityProvider $identityProvider, |
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ServiceProvider $serviceProvider, |
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PrivateKeyLoader $privateKeyLoader |
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) { |
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$this->logger = $logger; |
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$this->identityProvider = $identityProvider; |
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$this->serviceProvider = $serviceProvider; |
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$this->privateKeyLoader = $privateKeyLoader; |
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} |
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/** |
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* Allows for checking whether either the SP or the IdP requires assertion encryption |
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*/ |
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public function isEncryptionRequired() |
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{ |
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return $this->identityProvider->isAssertionEncryptionRequired() |
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|| $this->serviceProvider->isAssertionEncryptionRequired(); |
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} |
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/** |
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* @param \SAML2\EncryptedAssertion $assertion |
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* |
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* @return \SAML2\Assertion |
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*/ |
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public function decrypt(EncryptedAssertion $assertion) |
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{ |
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$decryptionKeys = $this->privateKeyLoader->loadDecryptionKeys($this->identityProvider, $this->serviceProvider); |
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$blacklistedKeys = $this->identityProvider->getBlacklistedAlgorithms(); |
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if (is_null($blacklistedKeys)) { |
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$blacklistedKeys = $this->serviceProvider->getBlacklistedAlgorithms(); |
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} |
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// reflects the simplesamlphp behaviour for BC, see |
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// https://github.com/simplesamlphp/simplesamlphp/blob/3d735912342767d391297cc5e13272a76730aca0/modules/saml/lib/Message.php#L369 |
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View Code Duplication |
foreach ($decryptionKeys as $index => $key) { |
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try { |
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$decryptedAssertion = $assertion->getAssertion($key, $blacklistedKeys); |
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$this->logger->debug(sprintf('Decrypted Assertion with key "#%d"', $index)); |
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return $decryptedAssertion; |
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} catch (\Exception $e) { |
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$this->logger->debug(sprintf( |
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'Could not decrypt assertion with key "#%d", "%s" thrown: "%s"', |
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$index, |
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get_class($e), |
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$e->getMessage() |
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)); |
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} |
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} |
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throw new NotDecryptedException(sprintf( |
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'Could not decrypt the assertion, tried with "%d" keys. See the debug log for more information', |
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count($decryptionKeys) |
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)); |
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} |
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} |
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simplesamlphp /
saml2
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.