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<?php |
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declare(strict_types=1); |
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namespace SAML2; |
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use RobRichards\XMLSecLibs\XMLSecurityKey; |
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use SAML2\Utilities\Temporal; |
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use \SimpleSAML\Configuration; |
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use \SimpleSAML\Metadata\MetaDataStorageHandler; |
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use \SimpleSAML\Store; |
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/** |
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* Class which implements the HTTP-Artifact binding. |
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* |
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* @author Danny Bollaert, UGent AS. <[email protected]> |
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* @package SimpleSAMLphp |
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*/ |
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class HTTPArtifact extends Binding |
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{ |
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/** |
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* @var \SimpleSAML\Configuration |
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*/ |
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private $spMetadata; |
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/** |
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* Create the redirect URL for a message. |
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* |
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* @param \SAML2\Message $message The message. |
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* @throws \Exception |
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* @return string The URL the user should be redirected to in order to send a message. |
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*/ |
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public function getRedirectURL(Message $message) : string |
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{ |
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$store = Store::getInstance(); |
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if ($store === false) { |
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throw new \Exception('Unable to send artifact without a datastore configured.'); |
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} |
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$generatedId = pack('H*', bin2hex(openssl_random_pseudo_bytes(20))); |
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$issuer = $message->getIssuer(); |
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if ($issuer === null) { |
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throw new \Exception('Cannot get redirect URL, no Issuer set in the message.'); |
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} |
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$artifact = base64_encode("\x00\x04\x00\x00".sha1($issuer->getValue(), true).$generatedId); |
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$artifactData = $message->toUnsignedXML(); |
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$artifactDataString = $artifactData->ownerDocument->saveXML($artifactData); |
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$store->set('artifact', $artifact, $artifactDataString, Temporal::getTime() + 15*60); |
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$params = [ |
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'SAMLart' => $artifact, |
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]; |
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$relayState = $message->getRelayState(); |
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if ($relayState !== null) { |
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$params['RelayState'] = $relayState; |
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} |
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$destination = $message->getDestination(); |
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if ($destination === null) { |
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throw new \Exception('Cannot get redirect URL, no destination set in the message.'); |
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} |
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return \SimpleSAML\Utils\HTTP::addURLparameters($destination, $params); |
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} |
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/** |
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* Send a SAML 2 message using the HTTP-Redirect binding. |
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* |
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* Note: This function never returns. |
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* |
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* @param \SAML2\Message $message The message we should send. |
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* @return void |
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*/ |
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public function send(Message $message) |
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{ |
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$destination = $this->getRedirectURL($message); |
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Utils::getContainer()->redirect($destination); |
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} |
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/** |
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* Receive a SAML 2 message sent using the HTTP-Artifact binding. |
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* |
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* Throws an exception if it is unable receive the message. |
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* |
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* @throws \Exception |
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* @return \SAML2\Message|null The received message. |
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*/ |
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public function receive() |
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{ |
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if (array_key_exists('SAMLart', $_REQUEST)) { |
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$artifact = base64_decode($_REQUEST['SAMLart']); |
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$endpointIndex = bin2hex(substr($artifact, 2, 2)); |
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$sourceId = bin2hex(substr($artifact, 4, 20)); |
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} else { |
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throw new \Exception('Missing SAMLart parameter.'); |
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} |
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$metadataHandler = MetaDataStorageHandler::getMetadataHandler(); |
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$idpMetadata = $metadataHandler->getMetaDataConfigForSha1($sourceId, 'saml20-idp-remote'); |
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if ($idpMetadata === null) { |
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throw new \Exception('No metadata found for remote provider with SHA1 ID: '.var_export($sourceId, true)); |
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} |
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$endpoint = null; |
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foreach ($idpMetadata->getEndpoints('ArtifactResolutionService') as $ep) { |
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if ($ep['index'] === hexdec($endpointIndex)) { |
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$endpoint = $ep; |
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break; |
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} |
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} |
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if ($endpoint === null) { |
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throw new \Exception('No ArtifactResolutionService with the correct index.'); |
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} |
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Utils::getContainer()->getLogger()->debug("ArtifactResolutionService endpoint being used is := ".$endpoint['Location']); |
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//Construct the ArtifactResolve Request |
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$ar = new ArtifactResolve(); |
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/* Set the request attributes */ |
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$ar->setIssuer($this->spMetadata->getString('entityid')); |
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$ar->setArtifact($_REQUEST['SAMLart']); |
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$ar->setDestination($endpoint['Location']); |
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/* Sign the request */ |
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\SimpleSAML\Module\saml\Message::addSign($this->spMetadata, $idpMetadata, $ar); // Shoaib - moved from the SOAPClient. |
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$soap = new SOAPClient(); |
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// Send message through SoapClient |
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/** @var \SAML2\ArtifactResponse $artifactResponse */ |
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$artifactResponse = $soap->send($ar, $this->spMetadata); |
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if (!$artifactResponse->isSuccess()) { |
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throw new \Exception('Received error from ArtifactResolutionService.'); |
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} |
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$xml = $artifactResponse->getAny(); |
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if ($xml === null) { |
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/* Empty ArtifactResponse - possibly because of Artifact replay? */ |
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throw new \Exception('Empty ArtifactResponse received, maybe a replay?'); |
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} |
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$samlResponse = Message::fromXML($xml); |
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$samlResponse->addValidator([get_class($this), 'validateSignature'], $artifactResponse); |
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if (isset($_REQUEST['RelayState'])) { |
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$samlResponse->setRelayState($_REQUEST['RelayState']); |
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} |
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return $samlResponse; |
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} |
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/** |
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* @param \SimpleSAML\Configuration $sp |
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* @return void |
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*/ |
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public function setSPMetadata(Configuration $sp) |
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{ |
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$this->spMetadata = $sp; |
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} |
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/** |
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* A validator which returns true if the ArtifactResponse was signed with the given key |
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* |
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* @param \SAML2\ArtifactResponse $message |
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* @param XMLSecurityKey $key |
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* @return bool |
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*/ |
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public static function validateSignature(ArtifactResponse $message, XMLSecurityKey $key) : bool |
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{ |
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return $message->validate($key); |
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} |
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} |
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simplesamlphp /
saml2
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The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g.
excluded_paths: ["lib/*"], you can move it to the dependency path list as follows:For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths