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<?php |
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/* |
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* This file is part of the LightSAML-IDP 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 GPL-3 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\Idp\Action\Assertion\Outbound; |
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use LightSaml\Action\Assertion\AbstractAssertionAction; |
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use LightSaml\Context\Profile\AssertionContext; |
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use LightSaml\Context\Profile\ProfileContext; |
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use LightSaml\Error\LightSamlContextException; |
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use LightSaml\Model\Assertion\EncryptedAssertionWriter; |
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use LightSaml\Resolver\Credential\CredentialResolverInterface; |
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use LightSaml\SamlConstants; |
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use LightSaml\Credential\CredentialInterface; |
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use LightSaml\Credential\UsageType; |
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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 Psr\Log\LoggerInterface; |
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class EncryptAssertionAction extends AbstractAssertionAction |
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{ |
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/** @var CredentialResolverInterface */ |
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protected $credentialResolver; |
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/** |
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* @param LoggerInterface $logger |
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* @param CredentialResolverInterface $credentialResolver |
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*/ |
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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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/** |
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* @param AssertionContext $context |
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* |
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* @return void |
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*/ |
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protected function doExecute(AssertionContext $context) |
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{ |
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$profileContext = $context->getProfileContext(); |
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$trustOptions = $profileContext->getTrustOptions(); |
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if (false === $trustOptions->getEncryptAssertions()) { |
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return; |
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} |
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if (null == $assertion = $context->getAssertion()) { |
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throw new LightSamlContextException($context, 'Assertion for encryption is not set'); |
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} |
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$context->setAssertion(null); |
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$query = $this->credentialResolver->query(); |
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$query |
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->add(new EntityIdCriteria($profileContext->getPartyEntityDescriptor()->getEntityID())) |
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->add(new MetadataCriteria( |
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ProfileContext::ROLE_IDP === $profileContext->getOwnRole() |
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? MetadataCriteria::TYPE_SP |
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: MetadataCriteria::TYPE_IDP, |
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SamlConstants::PROTOCOL_SAML2 |
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)) |
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->add(new UsageCriteria(UsageType::ENCRYPTION)) |
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; |
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$query->resolve(); |
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/** @var CredentialInterface $credential */ |
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$credential = $query->firstCredential(); |
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if (null == $credential) { |
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throw new LightSamlContextException($context, 'Unable to resolve encrypting credential'); |
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} |
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if (null == $credential->getPublicKey()) { |
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throw new LightSamlContextException($context, 'Credential resolved for assertion encryption does not have a public key'); |
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} |
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$encryptedAssertionWriter = new EncryptedAssertionWriter( |
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$trustOptions->getBlockEncryptionAlgorithm(), |
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$trustOptions->getKeyTransportEncryptionAlgorithm() |
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); |
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$encryptedAssertionWriter->encrypt($assertion, $credential->getPublicKey()); |
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$context->setEncryptedAssertion($encryptedAssertionWriter); |
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} |
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} |
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lightSAML /
lightSAML-IDP
