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<?php |
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/* |
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* This file is part of the LightSAML-Core package. |
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* |
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* (c) Milos Tomic <[email protected]> |
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* |
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* This source file is subject to the MIT license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace LightSaml\Action\Profile\Inbound\Response; |
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use LightSaml\Action\Profile\AbstractProfileAction; |
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use LightSaml\Context\Profile\Helper\LogHelper; |
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use LightSaml\Context\Profile\Helper\MessageContextHelper; |
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use LightSaml\Context\Profile\ProfileContext; |
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use LightSaml\Credential\CredentialInterface; |
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use LightSaml\Credential\Criteria\EntityIdCriteria; |
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use LightSaml\Credential\Criteria\MetadataCriteria; |
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use LightSaml\Credential\Criteria\UsageCriteria; |
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use LightSaml\Credential\UsageType; |
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use LightSaml\Error\LightSamlContextException; |
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use LightSaml\Model\Assertion\EncryptedAssertionReader; |
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use LightSaml\Model\Context\DeserializationContext; |
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use LightSaml\Resolver\Credential\CredentialResolverInterface; |
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use LightSaml\SamlConstants; |
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use Psr\Log\LoggerInterface; |
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class DecryptAssertionsAction extends AbstractProfileAction |
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{ |
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/** @var CredentialResolverInterface */ |
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protected $credentialResolver; |
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public function __construct(LoggerInterface $logger, CredentialResolverInterface $credentialResolver) |
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{ |
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parent::__construct($logger); |
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$this->credentialResolver = $credentialResolver; |
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} |
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protected function doExecute(ProfileContext $context) |
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{ |
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$response = MessageContextHelper::asResponse($context->getInboundContext()); |
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if (0 === count($response->getAllEncryptedAssertions())) { |
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$this->logger->debug('Response has no encrypted assertions', LogHelper::getActionContext($context, $this)); |
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return; |
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} |
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$ownEntityDescriptor = $context->getOwnEntityDescriptor(); |
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$query = $this->credentialResolver->query(); |
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$query |
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->add(new EntityIdCriteria($ownEntityDescriptor->getEntityID())) |
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->add(new MetadataCriteria( |
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ProfileContext::ROLE_IDP === $context->getOwnRole() |
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? MetadataCriteria::TYPE_IDP |
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: MetadataCriteria::TYPE_SP, |
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SamlConstants::PROTOCOL_SAML2 |
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)) |
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->add(new UsageCriteria(UsageType::ENCRYPTION)) |
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; |
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$query->resolve(); |
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$privateKeys = $query->getPrivateKeys(); |
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if (empty($privateKeys)) { |
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$message = 'No credentials resolved for assertion decryption'; |
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$this->logger->emergency($message, LogHelper::getActionErrorContext($context, $this)); |
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throw new LightSamlContextException($context, $message); |
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} |
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$this->logger->info('Trusted decryption candidates', LogHelper::getActionContext($context, $this, [ |
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'credentials' => array_map(function (CredentialInterface $credential) { |
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return sprintf( |
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"Entity: '%s'; PK X509 Thumb: '%s'", |
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$credential->getEntityId(), |
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$credential->getPublicKey() ? $credential->getPublicKey()->getX509Thumbprint() : '' |
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); |
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}, $privateKeys), |
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])); |
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foreach ($response->getAllEncryptedAssertions() as $index => $encryptedAssertion) { |
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if ($encryptedAssertion instanceof EncryptedAssertionReader) { |
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$name = sprintf('assertion_encrypted_%s', $index); |
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/** @var DeserializationContext $deserializationContext */ |
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$deserializationContext = $context->getInboundContext()->getSubContext($name, DeserializationContext::class); |
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$assertion = $encryptedAssertion->decryptMultiAssertion($privateKeys, $deserializationContext); |
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$response->addAssertion($assertion); |
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$this->logger->info( |
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'Assertion decrypted', |
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LogHelper::getActionContext($context, $this, [ |
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'assertion' => $deserializationContext->getDocument()->saveXML(), |
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]) |
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); |
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} |
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} |
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} |
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} |
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lightsaml2 /
lightSAML
