SimpleSAML_XML_Shib13_AuthnResponse::generate PHP Method

    public function generate(SimpleSAML_Configuration $idp, SimpleSAML_Configuration $sp, $shire, $attributes)
    {
        assert('is_string($shire)');
        assert('$attributes === NULL || is_array($attributes)');
        if ($sp->hasValue('scopedattributes')) {
            $scopedAttributes = $sp->getArray('scopedattributes');
        } elseif ($idp->hasValue('scopedattributes')) {
            $scopedAttributes = $idp->getArray('scopedattributes');
        } else {
            $scopedAttributes = array();
        }
        $id = SimpleSAML\Utils\Random::generateID();
        $issueInstant = SimpleSAML\Utils\Time::generateTimestamp();
        // 30 seconds timeskew back in time to allow differing clocks
        $notBefore = SimpleSAML\Utils\Time::generateTimestamp(time() - 30);
        $assertionExpire = SimpleSAML\Utils\Time::generateTimestamp(time() + 60 * 5);
        # 5 minutes
        $assertionid = SimpleSAML\Utils\Random::generateID();
        $spEntityId = $sp->getString('entityid');
        $audience = $sp->getString('audience', $spEntityId);
        $base64 = $sp->getBoolean('base64attributes', FALSE);
        $namequalifier = $sp->getString('NameQualifier', $spEntityId);
        $nameid = SimpleSAML\Utils\Random::generateID();
        $subjectNode = '<Subject>' . '<NameIdentifier' . ' Format="urn:mace:shibboleth:1.0:nameIdentifier"' . ' NameQualifier="' . htmlspecialchars($namequalifier) . '"' . '>' . htmlspecialchars($nameid) . '</NameIdentifier>' . '<SubjectConfirmation>' . '<ConfirmationMethod>' . 'urn:oasis:names:tc:SAML:1.0:cm:bearer' . '</ConfirmationMethod>' . '</SubjectConfirmation>' . '</Subject>';
        $encodedattributes = '';
        if (is_array($attributes)) {
            $encodedattributes .= '<AttributeStatement>';
            $encodedattributes .= $subjectNode;
            foreach ($attributes as $name => $value) {
                $encodedattributes .= $this->enc_attribute($name, $value, $base64, $scopedAttributes);
            }
            $encodedattributes .= '</AttributeStatement>';
        }
        /*
         * The SAML 1.1 response message
         */
        $response = '<Response xmlns="urn:oasis:names:tc:SAML:1.0:protocol"
    xmlns:saml="urn:oasis:names:tc:SAML:1.0:assertion"
    xmlns:samlp="urn:oasis:names:tc:SAML:1.0:protocol" xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" IssueInstant="' . $issueInstant . '"
    MajorVersion="1" MinorVersion="1"
    Recipient="' . htmlspecialchars($shire) . '" ResponseID="' . $id . '">
    <Status>
        <StatusCode Value="samlp:Success" />
    </Status>
    <Assertion xmlns="urn:oasis:names:tc:SAML:1.0:assertion"
        AssertionID="' . $assertionid . '" IssueInstant="' . $issueInstant . '"
        Issuer="' . htmlspecialchars($idp->getString('entityid')) . '" MajorVersion="1" MinorVersion="1">
        <Conditions NotBefore="' . $notBefore . '" NotOnOrAfter="' . $assertionExpire . '">
            <AudienceRestrictionCondition>
                <Audience>' . htmlspecialchars($audience) . '</Audience>
            </AudienceRestrictionCondition>
        </Conditions>
        <AuthenticationStatement AuthenticationInstant="' . $issueInstant . '"
            AuthenticationMethod="urn:oasis:names:tc:SAML:1.0:am:unspecified">' . $subjectNode . '
        </AuthenticationStatement>
        ' . $encodedattributes . '
    </Assertion>
</Response>';
        return $response;
    }

 /**
  * Send a response to the SP.
  *
  * @param array $state  The authentication state.
  */
 public static function sendResponse(array $state)
 {
     assert('isset($state["Attributes"])');
     assert('isset($state["SPMetadata"])');
     assert('isset($state["saml:shire"])');
     assert('array_key_exists("saml:target", $state)');
     // Can be NULL
     $spMetadata = $state["SPMetadata"];
     $spEntityId = $spMetadata['entityid'];
     $spMetadata = SimpleSAML_Configuration::loadFromArray($spMetadata, '$metadata[' . var_export($spEntityId, TRUE) . ']');
     SimpleSAML\Logger::info('Sending SAML 1.1 Response to ' . var_export($spEntityId, TRUE));
     $attributes = $state['Attributes'];
     $shire = $state['saml:shire'];
     $target = $state['saml:target'];
     $idp = SimpleSAML_IdP::getByState($state);
     $idpMetadata = $idp->getConfig();
     $config = SimpleSAML_Configuration::getInstance();
     $metadata = SimpleSAML_Metadata_MetaDataStorageHandler::getMetadataHandler();
     $statsData = array('spEntityID' => $spEntityId, 'idpEntityID' => $idpMetadata->getString('entityid'), 'protocol' => 'saml1');
     if (isset($state['saml:AuthnRequestReceivedAt'])) {
         $statsData['logintime'] = microtime(TRUE) - $state['saml:AuthnRequestReceivedAt'];
     }
     SimpleSAML_Stats::log('saml:idp:Response', $statsData);
     // Generate and send response.
     $ar = new SimpleSAML_XML_Shib13_AuthnResponse();
     $authnResponseXML = $ar->generate($idpMetadata, $spMetadata, $shire, $attributes);
     $httppost = new SimpleSAML_Bindings_Shib13_HTTPPost($config, $metadata);
     $httppost->sendResponse($authnResponseXML, $idpMetadata, $spMetadata, $target, $shire);
 }