PHP XMLSecurityDSig::addReferenceList方法代码示例

 /**
  * @param \DOMNode $parent
  * @param \AerialShip\LightSaml\Meta\SerializationContext $context
  * @return \DOMNode
  */
 function getXml(\DOMNode $parent, SerializationContext $context)
 {
     $objXMLSecDSig = new \XMLSecurityDSig();
     $objXMLSecDSig->setCanonicalMethod($this->getCanonicalMethod());
     $key = $this->getXmlSecurityKey();
     switch ($key->type) {
         case \XMLSecurityKey::RSA_SHA256:
             $type = \XMLSecurityDSig::SHA256;
             break;
         case \XMLSecurityKey::RSA_SHA384:
             $type = \XMLSecurityDSig::SHA384;
             break;
         case \XMLSecurityKey::RSA_SHA512:
             $type = \XMLSecurityDSig::SHA512;
             break;
         default:
             $type = \XMLSecurityDSig::SHA1;
     }
     $objXMLSecDSig->addReferenceList(array($parent), $type, array(Protocol::XMLSEC_TRANSFORM_ALGORITHM_ENVELOPED_SIGNATURE, \XMLSecurityDSig::EXC_C14N), array('id_name' => $this->getIDName(), 'overwrite' => FALSE));
     $objXMLSecDSig->sign($key);
     $objXMLSecDSig->add509Cert($this->getCertificate()->getData(), false, false);
     $firstChild = $parent->hasChildNodes() ? $parent->firstChild : null;
     if ($firstChild && $firstChild->localName == 'Issuer') {
         // The signature node should come after the issuer node
         $firstChild = $firstChild->nextSibling;
     }
     $objXMLSecDSig->insertSignature($parent, $firstChild);
 }

function ADFS_SignResponse($response, $key, $cert)
{
    $objXMLSecDSig = new XMLSecurityDSig();
    $objXMLSecDSig->idKeys = array('AssertionID');
    $objXMLSecDSig->setCanonicalMethod(XMLSecurityDSig::EXC_C14N);
    $responsedom = new DOMDocument();
    $responsedom->loadXML(str_replace("\r", "", $response));
    $firstassertionroot = $responsedom->getElementsByTagName('Assertion')->item(0);
    $objXMLSecDSig->addReferenceList(array($firstassertionroot), XMLSecurityDSig::SHA1, array('http://www.w3.org/2000/09/xmldsig#enveloped-signature', XMLSecurityDSig::EXC_C14N), array('id_name' => 'AssertionID'));
    $objKey = new XMLSecurityKey(XMLSecurityKey::RSA_SHA1, array('type' => 'private'));
    $objKey->loadKey($key, TRUE);
    $objXMLSecDSig->sign($objKey);
    if ($cert) {
        $public_cert = file_get_contents($cert);
        $objXMLSecDSig->add509Cert($public_cert, TRUE);
    }
    $newSig = $responsedom->importNode($objXMLSecDSig->sigNode, TRUE);
    $firstassertionroot->appendChild($newSig);
    return $responsedom->saveXML();
}

 public function signSoapDoc($objKey, $options = null)
 {
     $objDSig = new XMLSecurityDSig();
     $objDSig->setCanonicalMethod(XMLSecurityDSig::EXC_C14N);
     $arNodes = array();
     foreach ($this->secNode->childNodes as $node) {
         if ($node->nodeType == XML_ELEMENT_NODE) {
             $arNodes[] = $node;
         }
     }
     foreach ($this->secNode->parentNode->childNodes as $node) {
         if ($this->signAllHeaders || $node->localName == 'To') {
             if ($node->nodeType == XML_ELEMENT_NODE && $node->namespaceURI != self::WSSENS) {
                 $arNodes[] = $node;
             }
         }
     }
     if ($this->signBody) {
         foreach ($this->envelope->childNodes as $node) {
             if ($node->namespaceURI == $this->soapNS && $node->localName == 'Body') {
                 $arNodes[] = $node;
                 break;
             }
         }
     }
     $algorithm = XMLSecurityDSig::SHA1;
     if (is_array($options) && isset($options["algorithm"])) {
         $algorithm = $options["algorithm"];
     }
     $arOptions = array('prefix' => self::WSUPFX, 'prefix_ns' => self::WSUNS);
     $objDSig->addReferenceList($arNodes, $algorithm, null, $arOptions);
     $objDSig->sign($objKey);
     $insertTop = true;
     if (is_array($options) && isset($options["insertBefore"])) {
         $insertTop = (bool) $options["insertBefore"];
     }
     $objDSig->appendSignature($this->secNode, $insertTop);
     /* New suff */
     if (is_array($options)) {
         if (!empty($options["KeyInfo"])) {
             if (!empty($options["KeyInfo"]["X509SubjectKeyIdentifier"])) {
                 $sigNode = $this->secNode->firstChild->nextSibling;
                 $objDoc = $sigNode->ownerDocument;
                 $keyInfo = $sigNode->ownerDocument->createElementNS(XMLSecurityDSig::XMLDSIGNS, 'ds:KeyInfo');
                 $sigNode->appendChild($keyInfo);
                 $tokenRef = $objDoc->createElementNS(self::WSSENS, self::WSSEPFX . ':SecurityTokenReference');
                 $keyInfo->appendChild($tokenRef);
                 $reference = $objDoc->createElementNS(self::WSSENS, self::WSSEPFX . ':KeyIdentifier');
                 $reference->setAttribute("ValueType", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509SubjectKeyIdentifier");
                 $reference->setAttribute("EncodingType", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary");
                 $tokenRef->appendChild($reference);
                 $x509 = openssl_x509_parse($objKey->getX509Certificate());
                 $keyid = $x509["extensions"]["subjectKeyIdentifier"];
                 $arkeyid = split(":", $keyid);
                 $data = "";
                 foreach ($arkeyid as $hexchar) {
                     $data .= chr(hexdec($hexchar));
                 }
                 $dataNode = new DOMText(base64_encode($data));
                 $reference->appendChild($dataNode);
             }
         }
     }
 }

 /**
  * Adds signature key and senders certificate to an element (Message or Assertion).
  *
  * @param string|DomDocument $xml  The element we should sign
  * @param string             $key  The private key
  * @param string             $cert The public
  */
 public static function addSign($xml, $key, $cert)
 {
     if ($xml instanceof DOMDocument) {
         $dom = $xml;
     } else {
         $dom = new DOMDocument();
         $dom = self::loadXML($dom, $xml);
         if (!$dom) {
             throw new Exception('Error parsing xml string');
         }
     }
     /* Load the private key. */
     $objKey = new XMLSecurityKey(XMLSecurityKey::RSA_SHA1, array('type' => 'private'));
     $objKey->loadKey($key, false);
     /* Get the EntityDescriptor node we should sign. */
     $rootNode = $dom->firstChild;
     /* Sign the metadata with our private key. */
     $objXMLSecDSig = new XMLSecurityDSig();
     $objXMLSecDSig->setCanonicalMethod(XMLSecurityDSig::EXC_C14N);
     $objXMLSecDSig->addReferenceList(array($rootNode), XMLSecurityDSig::SHA1, array('http://www.w3.org/2000/09/xmldsig#enveloped-signature', XMLSecurityDSig::EXC_C14N), array('id_name' => 'ID'));
     $objXMLSecDSig->sign($objKey);
     /* Add the certificate to the signature. */
     $objXMLSecDSig->add509Cert($cert, true);
     $insertBefore = $rootNode->firstChild;
     $messageTypes = array('samlp:AuthnRequest', 'samlp:Response', 'samlp:LogoutRequest', 'samlp:LogoutResponse');
     if (in_array($rootNode->tagName, $messageTypes)) {
         $issuerNodes = self::query($dom, '/' . $rootNode->tagName . '/saml:Issuer');
         if ($issuerNodes->length == 1) {
             $insertBefore = $issuerNodes->item(0)->nextSibling;
         }
     }
     /* Add the signature. */
     $objXMLSecDSig->insertSignature($rootNode, $insertBefore);
     /* Return the DOM tree as a string. */
     $signedxml = $dom->saveXML();
     return $signedxml;
 }

 public function signSoapDoc($objKey)
 {
     $objDSig = new XMLSecurityDSig();
     $objDSig->setCanonicalMethod(XMLSecurityDSig::EXC_C14N);
     $arNodes = array();
     foreach ($this->secNode->childNodes as $node) {
         if ($node->nodeType == XML_ELEMENT_NODE) {
             $arNodes[] = $node;
         }
     }
     if ($this->signAllHeaders) {
         foreach ($this->secNode->parentNode->childNodes as $node) {
             if ($node->nodeType == XML_ELEMENT_NODE && $node->namespaceURI != WSSESoap::WSSENS) {
                 $arNodes[] = $node;
             }
         }
     }
     foreach ($this->envelope->childNodes as $node) {
         if ($node->namespaceURI == $this->soapNS && $node->localName == 'Body') {
             $arNodes[] = $node;
             break;
         }
     }
     $arOptions = array('prefix' => WSSESoap::WSUPFX, 'prefix_ns' => WSSESoap::WSUNS);
     $objDSig->addReferenceList($arNodes, XMLSecurityDSig::SHA1, NULL, $arOptions);
     $objDSig->sign($objKey);
     $objDSig->appendSignature($this->secNode, TRUE);
 }

 /**
  * Insert a Signature-node.
  *
  * @param XMLSecurityKey $key           The key we should use to sign the message.
  * @param array          $certificates  The certificates we should add to the signature node.
  * @param DOMElement     $root          The XML node we should sign.
  * @param DOMNode        $insertBefore  The XML element we should insert the signature element before.
  */
 public static function insertSignature(XMLSecurityKey $key, array $certificates, DOMElement $root, DOMNode $insertBefore = NULL)
 {
     $objXMLSecDSig = new XMLSecurityDSig();
     $objXMLSecDSig->setCanonicalMethod(XMLSecurityDSig::EXC_C14N);
     switch ($key->type) {
         case XMLSecurityKey::RSA_SHA256:
             $type = XMLSecurityDSig::SHA256;
             break;
         case XMLSecurityKey::RSA_SHA384:
             $type = XMLSecurityDSig::SHA384;
             break;
         case XMLSecurityKey::RSA_SHA512:
             $type = XMLSecurityDSig::SHA512;
             break;
         default:
             $type = XMLSecurityDSig::SHA1;
     }
     $objXMLSecDSig->addReferenceList(array($root), $type, array('http://www.w3.org/2000/09/xmldsig#enveloped-signature', XMLSecurityDSig::EXC_C14N), array('id_name' => 'ID', 'overwrite' => FALSE));
     $objXMLSecDSig->sign($key);
     foreach ($certificates as $certificate) {
         $objXMLSecDSig->add509Cert($certificate, TRUE);
     }
     $objXMLSecDSig->insertSignature($root, $insertBefore);
 }

 /**
  * Signs the given metadata if metadata signing is enabled.
  *
  * @param string $metadataString A string with the metadata.
  * @param array  $entityMetadata The metadata of the entity.
  * @param string $type A string which describes the type entity this is, e.g. 'SAML 2 IdP' or 'Shib 1.3 SP'.
  *
  * @return string The $metadataString with the signature embedded.
  * @throws Exception If the certificate or private key cannot be loaded, or the metadata doesn't parse properly.
  */
 public static function sign($metadataString, $entityMetadata, $type)
 {
     $config = SimpleSAML_Configuration::getInstance();
     // check if metadata signing is enabled
     if (!self::isMetadataSigningEnabled($config, $entityMetadata, $type)) {
         return $metadataString;
     }
     // find the key & certificate which should be used to sign the metadata
     $keyCertFiles = self::findKeyCert($config, $entityMetadata, $type);
     $keyFile = \SimpleSAML\Utils\Config::getCertPath($keyCertFiles['privatekey']);
     if (!file_exists($keyFile)) {
         throw new Exception('Could not find private key file [' . $keyFile . '], which is needed to sign the metadata');
     }
     $keyData = file_get_contents($keyFile);
     $certFile = \SimpleSAML\Utils\Config::getCertPath($keyCertFiles['certificate']);
     if (!file_exists($certFile)) {
         throw new Exception('Could not find certificate file [' . $certFile . '], which is needed to sign the metadata');
     }
     $certData = file_get_contents($certFile);
     // convert the metadata to a DOM tree
     try {
         $xml = SAML2_DOMDocumentFactory::fromString($metadataString);
     } catch (Exception $e) {
         throw new Exception('Error parsing self-generated metadata.');
     }
     // load the private key
     $objKey = new XMLSecurityKey(XMLSecurityKey::RSA_SHA1, array('type' => 'private'));
     if (array_key_exists('privatekey_pass', $keyCertFiles)) {
         $objKey->passphrase = $keyCertFiles['privatekey_pass'];
     }
     $objKey->loadKey($keyData, false);
     // get the EntityDescriptor node we should sign
     $rootNode = $xml->firstChild;
     // sign the metadata with our private key
     if ($type == 'ADFS IdP') {
         $objXMLSecDSig = new sspmod_adfs_XMLSecurityDSig($metadataString);
     } else {
         $objXMLSecDSig = new XMLSecurityDSig();
     }
     $objXMLSecDSig->setCanonicalMethod(XMLSecurityDSig::EXC_C14N);
     $objXMLSecDSig->addReferenceList(array($rootNode), XMLSecurityDSig::SHA1, array('http://www.w3.org/2000/09/xmldsig#enveloped-signature', XMLSecurityDSig::EXC_C14N), array('id_name' => 'ID'));
     $objXMLSecDSig->sign($objKey);
     // add the certificate to the signature
     $objXMLSecDSig->add509Cert($certData, true);
     // add the signature to the metadata
     $objXMLSecDSig->insertSignature($rootNode, $rootNode->firstChild);
     // return the DOM tree as a string
     return $xml->saveXML();
 }

 public static function PrepSAMLAssertion(&$saml_xml_request)
 {
     //
     // Gather inputs needed during assembly of SAML Assertion (e.g., keys, certs, timestamps, IDs_
     //
     $DateTimeNow = new DateTime(null, new DateTimeZone("UTC"));
     $DateTimeNowString = $DateTimeNow->format("Y-m-d\\TH:i:s.B\\Z");
     $DateTime15Min = new DateTime(null, new DateTimeZone("UTC"));
     $DateTime15Min->modify('+900 sec');
     $DateTime15MinString = $DateTime15Min->format("Y-m-d\\TH:i:s.B\\Z");
     $SAMLParams = array();
     $SAMLParams['IssueInstant'] = $DateTimeNowString;
     $SAMLParams['Issuer'] = SAML_IDENTITY_PROVIDER_ID;
     $SAMLParams['ID'] = SimpleSAML_Utilities::generateID();
     $SAMLParams['NameID'] = SAML_NAME_ID;
     $SAMLParams['NotBefore'] = $DateTimeNowString;
     $SAMLParams['NotOnOrAfter'] = $DateTime15MinString;
     $SAMLParams['AuthnInstant'] = $DateTimeNowString;
     $SAMLParams['Audience'] = SAML_IDENTITY_PROVIDER_ID;
     $SAMLParams['x509'] = file_get_contents(SAML_X509_CERT_PATH);
     $SAMLParams['private_key'] = file_get_contents(SAML_X509_PRIVATE_KEY_PATH);
     //
     // Assemble DOM containing correct SAML assertion
     //
     $xml = new DOMDocument('1.0', 'utf-8');
     // Assertion
     $assertion = $xml->createElementNS('urn:oasis:names:tc:SAML:2.0:assertion', 'saml2:Assertion');
     $assertion->setAttribute('ID', $SAMLParams['ID']);
     $assertion->setAttribute('Version', '2.0');
     $assertion->setAttribute('IssueInstant', $SAMLParams['IssueInstant']);
     $xml->appendChild($assertion);
     // Issuer
     $issuer = $xml->createElement('saml2:Issuer', $SAMLParams['Issuer']);
     $assertion->appendChild($issuer);
     // Subject + NameID + SubjectConfirmation
     $subject = $xml->createElement('saml2:Subject');
     $assertion->appendChild($subject);
     // NameID
     $nameid = $xml->createElement('saml2:NameID', $SAMLParams['NameID']);
     $nameid->setAttribute('Format', 'urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified');
     $subject->appendChild($nameid);
     // SubjectConfirmation
     $confirmation = $xml->createElement('saml2:SubjectConfirmation');
     $confirmation->setAttribute('Method', 'urn:oasis:names:tc:SAML:2.0:cm:bearer');
     $subject->appendChild($confirmation);
     // Conditions + AudienceRestriction + Audience
     $condition = $xml->createElement('saml2:Conditions');
     $condition->setAttribute('NotBefore', $SAMLParams['NotBefore']);
     $condition->setAttribute('NotOnOrAfter', $SAMLParams['NotOnOrAfter']);
     $assertion->appendChild($condition);
     // AudienceRestriction
     $audiencer = $xml->createElement('saml2:AudienceRestriction');
     $condition->appendChild($audiencer);
     // Audience
     $audience = $xml->createElement('saml2:Audience', $SAMLParams['Audience']);
     $audiencer->appendChild($audience);
     // AuthnStatement + AuthnContext + AuthnContextClassRef
     $authnstat = $xml->createElement('saml2:AuthnStatement');
     $authnstat->setAttribute('AuthnInstant', $SAMLParams['AuthnInstant']);
     $authnstat->setAttribute('SessionIndex', $SAMLParams['ID']);
     $assertion->appendChild($authnstat);
     // AuthnContext
     $authncontext = $xml->createElement('saml2:AuthnContext');
     $authnstat->appendChild($authncontext);
     // AuthnContextClassRef
     $authncontext_ref = $xml->createElement('saml2:AuthnContextClassRef', 'urn:oasis:names:tc:SAML:2.0:ac:classes:unspecified');
     $authncontext->appendChild($authncontext_ref);
     //Private KEY
     $objKey = new XMLSecurityKey(XMLSecurityKey::RSA_SHA1, array('type' => 'private'));
     $objKey->loadKey($SAMLParams['private_key']);
     //Sign the Assertion
     $objXMLSecDSig = new XMLSecurityDSig();
     $objXMLSecDSig->setCanonicalMethod(XMLSecurityDSig::EXC_C14N);
     $objXMLSecDSig->addReferenceList(array($assertion), XMLSecurityDSig::SHA1, array('http://www.w3.org/2000/09/xmldsig#enveloped-signature', XMLSecurityDSig::EXC_C14N), array('URI' => 'ID', 'overwrite' => false, 'id_name' => 'ID'));
     $objXMLSecDSig->sign($objKey);
     $objXMLSecDSig->add509Cert($SAMLParams['x509']);
     $objXMLSecDSig->insertSignature($assertion, $subject);
     $saml = $xml->saveXML();
     //
     // Change Reference URI locally (considered changing 'xmlseclibs.php', but
     // that seemed inappropriate)
     //
     preg_match("/<ds:Reference URI=\"#(.+?)\">/is", $saml, $URI);
     $saml = str_replace("Id=\"" . $URI[1] . "\"", "", $saml);
     $saml = str_replace($URI[1], $SAMLParams["ID"], $saml);
     //
     // Prepare Base64-Encoded SAML Assertion request body based on DOM
     //
     $saml = str_replace('<?xml version="1.0" encoding="utf-8"?>', '', $saml);
     $saml_xml_request = base64_encode(stripslashes($saml));
 }

 /**
  * Insert a Signature-node.
  *
  * @param XMLSecurityKey $key  The key we should use to sign the message.
  * @param array $certificates  The certificates we should add to the signature node.
  * @param DOMElement $root  The XML node we should sign.
  * @param DomElement $insertBefore  The XML element we should insert the signature element before.
  */
 public static function insertSignature(XMLSecurityKey $key, array $certificates, DOMElement $root, DOMNode $insertBefore = NULL)
 {
     $objXMLSecDSig = new XMLSecurityDSig();
     $objXMLSecDSig->setCanonicalMethod(XMLSecurityDSig::EXC_C14N);
     $objXMLSecDSig->addReferenceList(array($root), XMLSecurityDSig::SHA1, array('http://www.w3.org/2000/09/xmldsig#enveloped-signature', XMLSecurityDSig::EXC_C14N), array('id_name' => 'ID'));
     $objXMLSecDSig->sign($key);
     foreach ($certificates as $certificate) {
         $objXMLSecDSig->add509Cert($certificate, TRUE);
     }
     $objXMLSecDSig->insertSignature($root, $insertBefore);
 }

 /**
  * Signs the given DOMElement and inserts the signature at the given position.
  *
  * The private key must be set before calling this function.
  *
  * @param $node  The DOMElement we should generate a signature for.
  * @param $insertInto  The DOMElement we should insert the signature element into.
  * @param $insertBefore  The element we should insert the signature element before. Defaults to NULL,
  *                       in which case the signature will be appended to the element spesified in
  *                       $insertInto.
  */
 public function sign($node, $insertInto, $insertBefore = NULL)
 {
     assert('$node instanceof DOMElement');
     assert('$insertInto instanceof DOMElement');
     assert('is_null($insertBefore) || $insertBefore instanceof DOMElement ' . '|| $insertBefore instanceof DOMComment || $insertBefore instanceof DOMText');
     if ($this->privateKey === FALSE) {
         throw new Exception('Private key not set.');
     }
     $objXMLSecDSig = new XMLSecurityDSig();
     $objXMLSecDSig->setCanonicalMethod(XMLSecurityDSig::EXC_C14N);
     $options = array();
     if ($this->idAttrName !== FALSE) {
         $options['id_name'] = $this->idAttrName;
     }
     $objXMLSecDSig->addReferenceList(array($node), XMLSecurityDSig::SHA1, array('http://www.w3.org/2000/09/xmldsig#enveloped-signature', XMLSecurityDSig::EXC_C14N), $options);
     $objXMLSecDSig->sign($this->privateKey);
     if ($this->certificate !== FALSE) {
         // Add the certificate to the signature
         $objXMLSecDSig->add509Cert($this->certificate, TRUE);
     }
     // Add extra certificates
     foreach ($this->extraCertificates as $certificate) {
         $objXMLSecDSig->add509Cert($certificate, TRUE);
     }
     $objXMLSecDSig->insertSignature($insertInto, $insertBefore);
 }

 /**
  * Signs the given metadata if metadata signing is enabled.
  *
  * @param $metadataString  A string with the metadata.
  * @param $entityMetadata  The metadata of the entity.
  * @param $type A string which describes the type entity this is, e.g. 'SAML 2 IdP' or 'Shib 1.3 SP'.
  * @return The $metadataString with the signature embedded.
  */
 public static function sign($metadataString, $entityMetadata, $type)
 {
     $config = SimpleSAML_Configuration::getInstance();
     /* Check if metadata signing is enabled. */
     if (!self::isMetadataSigningEnabled($config, $entityMetadata, $type)) {
         return $metadataString;
     }
     /* Find the key & certificate which should be used to sign the metadata. */
     $keyCertFiles = self::findKeyCert($config, $entityMetadata, $type);
     $keyFile = $config->getPathValue('certdir', 'cert/') . $keyCertFiles['privatekey'];
     if (!file_exists($keyFile)) {
         throw new Exception('Could not find private key file [' . $keyFile . '], which is needed to sign the metadata');
     }
     $keyData = file_get_contents($keyFile);
     $certFile = $config->getPathValue('certdir', 'cert/') . $keyCertFiles['certificate'];
     if (!file_exists($certFile)) {
         throw new Exception('Could not find certificate file [' . $certFile . '], which is needed to sign the metadata');
     }
     $certData = file_get_contents($certFile);
     /* Convert the metadata to a DOM tree. */
     $xml = new DOMDocument();
     if (!$xml->loadXML($metadataString)) {
         throw new Exception('Error parsing self-generated metadata.');
     }
     /* Load the private key. */
     $objKey = new XMLSecurityKey(XMLSecurityKey::RSA_SHA1, array('type' => 'private'));
     if (array_key_exists('privatekey_pass', $keyCertFiles)) {
         $objKey->passphrase = $keyCertFiles['privatekey_pass'];
     }
     $objKey->loadKey($keyData, FALSE);
     /* Get the EntityDescriptor node we should sign. */
     $rootNode = $xml->firstChild;
     /* Sign the metadata with our private key. */
     $objXMLSecDSig = new XMLSecurityDSig();
     $objXMLSecDSig->setCanonicalMethod(XMLSecurityDSig::EXC_C14N);
     $objXMLSecDSig->addReferenceList(array($rootNode), XMLSecurityDSig::SHA1, array('http://www.w3.org/2000/09/xmldsig#enveloped-signature', XMLSecurityDSig::EXC_C14N), array('id_name' => 'ID'));
     $objXMLSecDSig->sign($objKey);
     /* Add the certificate to the signature. */
     $objXMLSecDSig->add509Cert($certData, true);
     /* Add the signature to the metadata. */
     $objXMLSecDSig->insertSignature($rootNode, $rootNode->firstChild);
     /* Return the DOM tree as a string. */
     return $xml->saveXML();
 }

 public function sendResponse($response, $idmetaindex, $spentityid, $relayState = null)
 {
     $idpmd = $this->metadata->getMetaData($idmetaindex, 'saml20-idp-hosted');
     $spmd = $this->metadata->getMetaData($spentityid, 'saml20-sp-remote');
     $destination = $spmd['AssertionConsumerService'];
     if (empty($idpmd['privatekey'])) {
         throw new Exception('SAML: RSA private key not configured. This is required to sign the authentication response.');
     }
     if (empty($idpmd['certificate'])) {
         throw new Exception('SAML: X.509 certificate not configured. This is required to attach to the authentication response.');
     }
     // XMLDSig. Sign the complete request with the key stored in cert/server.pem
     $objXMLSecDSig = new XMLSecurityDSig();
     $objXMLSecDSig->setCanonicalMethod(XMLSecurityDSig::EXC_C14N);
     try {
         $responsedom = new DOMDocument();
         $responsedom->loadXML(str_replace("\n", "", str_replace("\r", "", $response)));
     } catch (Exception $e) {
         throw new Exception("foo");
     }
     $responseroot = $responsedom->getElementsByTagName('Response')->item(0);
     $firstassertionroot = $responsedom->getElementsByTagName('Assertion')->item(0);
     /* Determine what we should sign - either the Response element or the Assertion. The default
      * is to sign the Assertion, but that can be overridden by the 'signresponse' option in the
      * SP metadata or 'saml20.signresponse' in the global configuration.
      */
     $signResponse = FALSE;
     if (array_key_exists('signresponse', $spmd) && $spmd['signresponse'] !== NULL) {
         $signResponse = $spmd['signresponse'];
         if (!is_bool($signResponse)) {
             throw new Exception('Expected the \'signresponse\' option in the metadata of the' . ' SP \'' . $spmd['entityid'] . '\' to be a boolean value.');
         }
     } else {
         $signResponse = $this->configuration->getBoolean('saml20.signresponse', FALSE);
     }
     if ($signResponse) {
         // Sign the response.
         $objXMLSecDSig->addReferenceList(array($responseroot), XMLSecurityDSig::SHA1, array('http://www.w3.org/2000/09/xmldsig#enveloped-signature', XMLSecurityDSig::EXC_C14N), array('id_name' => 'ID'));
     } else {
         // Sign the assertion.
         $objXMLSecDSig->addReferenceList(array($firstassertionroot), XMLSecurityDSig::SHA1, array('http://www.w3.org/2000/09/xmldsig#enveloped-signature', XMLSecurityDSig::EXC_C14N), array('id_name' => 'ID'));
     }
     $objKey = new XMLSecurityKey(XMLSecurityKey::RSA_SHA1, array('type' => 'private'));
     if (array_key_exists('privatekey_pass', $idpmd)) {
         $objKey->passphrase = $idpmd['privatekey_pass'];
     }
     $objKey->loadKey($idpmd['privatekey']);
     $objXMLSecDSig->sign($objKey);
     $objXMLSecDSig->add509Cert($idpmd['certificate'], true);
     if ($signResponse) {
         $objXMLSecDSig->appendSignature($responseroot, true, false);
     } else {
         $objXMLSecDSig->appendSignature($firstassertionroot, true, true);
     }
     if (isset($spmd['assertion.encryption']) && $spmd['assertion.encryption']) {
         $encryptedassertion = $responsedom->createElement("saml:EncryptedAssertion");
         $encryptedassertion->setAttribute("xmlns:saml", "urn:oasis:names:tc:SAML:2.0:assertion");
         $firstassertionroot->parentNode->replaceChild($encryptedassertion, $firstassertionroot);
         $encryptedassertion->appendChild($firstassertionroot);
         $enc = new XMLSecEnc();
         $enc->setNode($firstassertionroot);
         $enc->type = XMLSecEnc::Element;
         $objKey = new XMLSecurityKey(XMLSecurityKey::AES128_CBC);
         if (isset($spmd['sharedkey'])) {
             $objKey->loadkey($spmd['sharedkey']);
         } else {
             $key = $objKey->generateSessionKey();
             $objKey->loadKey($key);
             if (empty($spmd['certificate'])) {
                 throw new Exception("Public key for encrypting assertion needed, but not specified for saml20-sp-remote id: " . $spentityid);
             }
             $keyKey = new XMLSecurityKey(XMLSecurityKey::RSA_1_5, array('type' => 'public'));
             $keyKey->loadKey($spmd['certificate']);
             $enc->encryptKey($keyKey, $objKey);
         }
         $encNode = $enc->encryptNode($objKey);
         # replacing the unencrypted node
     }
     $response = $responsedom->saveXML();
     SimpleSAML_Utilities::validateXMLDocument($response, 'saml20');
     # openssl genrsa -des3 -out server.key 1024
     # openssl rsa -in server.key -out server.pem
     # openssl req -new -key server.key -out server.csr
     # openssl x509 -req -days 60 -in server.csr -signkey server.key -out server.crt
     if ($this->configuration->getValue('debug')) {
         $p = new SimpleSAML_XHTML_Template($this->configuration, 'post-debug.php');
         $p->data['header'] = 'SAML Response Debug-mode';
         $p->data['RelayStateName'] = 'RelayState';
         $p->data['RelayState'] = $relayState;
         $p->data['destination'] = $destination;
         $p->data['response'] = str_replace("\n", "", base64_encode($response));
         $p->data['responseHTML'] = htmlentities($responsedom->saveHTML());
         $p->show();
     } else {
         $p = new SimpleSAML_XHTML_Template($this->configuration, 'post.php');
         $p->data['RelayStateName'] = 'RelayState';
         $p->data['RelayState'] = $relayState;
         $p->data['destination'] = $destination;
         $p->data['response'] = base64_encode($response);
         $p->show();
//.........这里部分代码省略.........