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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\Assertion\Inbound; |
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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\Helper\LogHelper; |
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use LightSaml\Error\LightSamlContextException; |
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use LightSaml\Store\Id\IdStoreInterface; |
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use Psr\Log\LoggerInterface; |
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/** |
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* 4.1.4.5 POST-Specific Processing Rules |
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* The service provider MUST ensure that bearer assertions are not replayed, by maintaining the set of used |
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* ID values for the length of time for which the assertion would be considered valid based on the |
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* NotOnOrAfter attribute in the <SubjectConfirmationData>. |
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*/ |
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class RepeatedIdValidatorAction extends AbstractAssertionAction |
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{ |
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/** @var IdStoreInterface */ |
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protected $idStore; |
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public function __construct(LoggerInterface $logger, IdStoreInterface $idStore) |
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{ |
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parent::__construct($logger); |
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$this->idStore = $idStore; |
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} |
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/** |
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* @return void |
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*/ |
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protected function doExecute(AssertionContext $context) |
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{ |
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if ($context->getAssertion()->hasBearerSubject()) { |
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$this->validateBearerAssertion($context); |
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} |
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} |
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/** |
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* @throws \LightSaml\Error\LightSamlContextException |
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*/ |
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protected function validateBearerAssertion(AssertionContext $context) |
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{ |
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if (null == $context->getAssertion()->getId()) { |
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$message = 'Bearer Assertion must have ID attribute'; |
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$this->logger->error($message, LogHelper::getActionErrorContext($context, $this)); |
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throw new LightSamlContextException($context, $message); |
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} |
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if (null == $context->getAssertion()->getIssuer()) { |
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$message = 'Bearer Assertion must have Issuer element'; |
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$this->logger->error($message, LogHelper::getActionErrorContext($context, $this)); |
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throw new LightSamlContextException($context, $message); |
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} |
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if ($this->idStore->has($context->getAssertion()->getIssuer()->getValue(), $context->getAssertion()->getId())) { |
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$message = sprintf( |
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"Repeated assertion id '%s' of issuer '%s'", |
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$context->getAssertion()->getId(), |
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$context->getAssertion()->getIssuer()->getValue() |
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); |
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$this->logger->error($message, LogHelper::getActionErrorContext($context, $this, [ |
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'id' => $context->getAssertion()->getId(), |
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'issuer' => $context->getAssertion()->getIssuer()->getValue(), |
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])); |
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throw new LightSamlContextException($context, $message); |
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} |
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$this->idStore->set( |
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$context->getAssertion()->getIssuer()->getValue(), |
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$context->getAssertion()->getId(), |
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$this->getIdExpiryTime($context) |
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); |
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} |
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/** |
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* @throws \LogicException |
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* @throws \LightSaml\Error\LightSamlValidationException |
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* |
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* @return \DateTime |
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*/ |
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protected function getIdExpiryTime(AssertionContext $context) |
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{ |
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/** @var \DateTime $result */ |
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$result = null; |
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$bearerConfirmations = $context->getAssertion()->getSubject()->getBearerConfirmations(); |
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if (null == $bearerConfirmations) { |
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throw new \LogicException('Bearer assertion must have bearer subject confirmations'); |
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} |
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foreach ($bearerConfirmations as $subjectConfirmation) { |
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if (null == $subjectConfirmation->getSubjectConfirmationData()) { |
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$message = 'Bearer SubjectConfirmation must have SubjectConfirmationData element'; |
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$this->logger->error($message, LogHelper::getActionErrorContext($context, $this)); |
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throw new LightSamlContextException($context, $message); |
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} |
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$dt = $subjectConfirmation->getSubjectConfirmationData()->getNotOnOrAfterDateTime(); |
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if (null == $dt) { |
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$message = 'Bearer SubjectConfirmation must have NotOnOrAfter attribute'; |
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$this->logger->error($message, LogHelper::getActionErrorContext($context, $this)); |
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throw new LightSamlContextException($context, $message); |
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} |
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if (null == $result || $result->getTimestamp() < $dt->getTimestamp()) { |
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$result = $dt; |
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} |
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} |
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if (null == $result) { |
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$message = 'Unable to find NotOnOrAfter attribute in bearer assertion'; |
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$this->logger->error($message, LogHelper::getActionErrorContext($context, $this)); |
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throw new LightSamlContextException($context, $message); |
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} |
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return $result; |
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} |
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} |
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