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<?php |
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namespace flipbox\saml\core\validators; |
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use flipbox\saml\core\AbstractPlugin; |
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use flipbox\saml\core\helpers\SecurityHelper; |
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use flipbox\saml\core\records\AbstractProvider; |
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use SAML2\Assertion as SamlAssertion; |
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use SAML2\Assertion\Validation\AssertionConstraintValidator; |
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use SAML2\Assertion\Validation\ConstraintValidator; |
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use SAML2\Assertion\Validation\Result; |
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use SAML2\Assertion\Validation\SubjectConfirmationConstraintValidator; |
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use SAML2\Configuration\Destination; |
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use SAML2\EncryptedAssertion; |
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class Assertion |
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{ |
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/** |
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* @var AbstractProvider |
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*/ |
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private $identityProvider; |
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/** |
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* @var AbstractProvider |
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*/ |
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private $serviceProvider; |
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/** |
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* @var \SAML2\Response |
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*/ |
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private $response; |
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private $validators; |
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/** |
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* Assertion constructor. |
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* @param \SAML2\Response $response |
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* @param AbstractProvider $identityProvider |
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* @param AbstractProvider $serviceProvider |
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* @throws \Exception |
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*/ |
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public function __construct( |
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\SAML2\Response $response, |
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AbstractProvider $identityProvider, |
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AbstractProvider $serviceProvider |
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) { |
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$this->identityProvider = $identityProvider; |
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$this->serviceProvider = $serviceProvider; |
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$this->response = $response; |
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$this->addValidators(); |
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} |
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/** |
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* @throws \Exception |
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*/ |
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private function addValidators() |
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{ |
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$this->validators = [ |
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new ConstraintValidator\NotBefore(), |
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new ConstraintValidator\NotOnOrAfter(), |
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new ConstraintValidator\SessionNotOnOrAfter(), |
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new ConstraintValidator\SubjectConfirmationMethod(), |
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new ConstraintValidator\SubjectConfirmationNotBefore(), |
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new ConstraintValidator\SubjectConfirmationNotOnOrAfter(), |
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new ConstraintValidator\SubjectConfirmationRecipientMatches( |
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new Destination( |
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$this->serviceProvider->firstSpAcsService()->getLocation() |
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) |
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), |
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new ConstraintValidator\SubjectConfirmationResponseToMatches( |
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$this->response |
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), |
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]; |
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if ($keyStore = $this->identityProvider->signingXMLSecurityKeyStore()) { |
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$this->validators[] = new SignedElement($keyStore); |
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} |
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} |
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/** |
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* @param $assertion |
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* @return Result |
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*/ |
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public function validate($assertion): Result |
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{ |
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// Decrypt if needed |
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if ($assertion instanceof EncryptedAssertion) { |
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$assertion = SecurityHelper::decryptAssertion( |
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$assertion, |
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$this->serviceProvider->keychain->getDecryptedKey() |
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); |
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} |
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/** @var SamlAssertion $assertion */ |
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$result = new Result(); |
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foreach ($this->validators as $validator) { |
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if ($validator instanceof SubjectConfirmationConstraintValidator) { |
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$this->validateSubjectConfirmations( |
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$validator, |
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$assertion->getSubjectConfirmation(), |
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$result |
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); |
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} else { |
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/** @var SignedElement|AssertionConstraintValidator $validator */ |
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$validator->validate($assertion, $result); |
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} |
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\Craft::info( |
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sprintf( |
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"%s validation errors: %s", |
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\get_class($validator), |
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\json_encode($result->getErrors()) |
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), |
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AbstractPlugin::SAML_CORE_HANDLE |
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); |
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} |
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return $result; |
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} |
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/** |
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* @param array $subjectConfirmations |
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* @param Result $result |
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*/ |
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protected function validateSubjectConfirmations( |
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SubjectConfirmationConstraintValidator $validator, |
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array $subjectConfirmations, |
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Result $result |
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) { |
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foreach ($subjectConfirmations as $subjectConfirmation) { |
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$validator->validate($subjectConfirmation, $result); |
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} |
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} |
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} |
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flipboxfactory /
saml-core
