public function testSignDocumentSha256()
{
// if key has a passphrase, set it via fifth parameter in factory
$key = Key::factory(Key::RSA_SHA256, $this->fixturesDir . '/privkey.pem', true, Key::TYPE_PRIVATE);
$cert = Key::factory(Key::RSA_SHA256, $this->fixturesDir . '/mycert.pem', true, Key::TYPE_PUBLIC);
$doc = new DOMDocument();
$doc->formatOutput = true;
$doc->load($this->fixturesDir . '/DSig/sign_document.xml');
$keyInfo = DSig::createX509CertificateKeyInfo($doc, $cert);
$signature = DSig::createSignature($key, DSig::EXC_C14N, $doc->documentElement, null, $keyInfo);
DSig::addNodeToSignature($signature, $doc, DSig::SHA1, DSig::TRANSFORMATION_ENVELOPED_SIGNATURE);
DSig::signDocument($signature, $key, DSig::EXC_C14N);
$file = $this->fixturesDir . '/DSig/sign_document_sha256_result.xml';
$this->assertXmlStringEqualsXmlFile($file, $doc->saveXML(), "Sign document with SHA256");
}
/**
* Modify the given request XML.
*
* @param \BeSimple\SoapCommon\SoapResponse $response SOAP response
*
* @return void
*/
public function filterResponse(CommonSoapResponse $response)
{
// get \DOMDocument from SOAP response
$dom = $response->getContentDocument();
// create FilterHelper
$filterHelper = new FilterHelper($dom);
// add the neccessary namespaces
$filterHelper->addNamespace(Helper::PFX_WSS, Helper::NS_WSS);
$filterHelper->addNamespace(Helper::PFX_WSU, Helper::NS_WSU);
$filterHelper->registerNamespace(XmlSecurityDSig::PFX_XMLDSIG, XmlSecurityDSig::NS_XMLDSIG);
// init timestamp
$dt = new \DateTime('now', new \DateTimeZone('UTC'));
$createdTimestamp = $dt->format(static::DATETIME_FORMAT);
// create security header
$security = $filterHelper->createElement(Helper::NS_WSS, 'Security');
$filterHelper->addHeaderElement($security, true, $this->actor, $response->getVersion());
if (true === $this->addTimestamp || null !== $this->expires) {
$timestamp = $filterHelper->createElement(Helper::NS_WSU, 'Timestamp');
$created = $filterHelper->createElement(Helper::NS_WSU, 'Created', $createdTimestamp);
$timestamp->appendChild($created);
if (null !== $this->expires) {
$dt->modify('+' . $this->expires . ' seconds');
$expiresTimestamp = $dt->format(static::DATETIME_FORMAT);
$expires = $filterHelper->createElement(Helper::NS_WSU, 'Expires', $expiresTimestamp);
$timestamp->appendChild($expires);
}
$security->appendChild($timestamp);
}
if (null !== $this->userSecurityKey && $this->userSecurityKey->hasKeys()) {
$guid = 'CertId-' . Helper::generateUUID();
// add token references
$keyInfo = null;
if (null !== $this->tokenReferenceSignature) {
$keyInfo = $this->createKeyInfo($filterHelper, $this->tokenReferenceSignature, $guid, $this->userSecurityKey->getPublicKey());
}
$nodes = $this->createNodeListForSigning($dom, $security);
$signature = XmlSecurityDSig::createSignature($this->userSecurityKey->getPrivateKey(), XmlSecurityDSig::EXC_C14N, $security, null, $keyInfo);
$options = array('id_ns_prefix' => Helper::PFX_WSU, 'id_prefix_ns' => Helper::NS_WSU);
foreach ($nodes as $node) {
XmlSecurityDSig::addNodeToSignature($signature, $node, XmlSecurityDSig::SHA1, XmlSecurityDSig::EXC_C14N, $options);
}
XmlSecurityDSig::signDocument($signature, $this->userSecurityKey->getPrivateKey(), XmlSecurityDSig::EXC_C14N);
$publicCertificate = $this->userSecurityKey->getPublicKey()->getX509Certificate(true);
$binarySecurityToken = $filterHelper->createElement(Helper::NS_WSS, 'BinarySecurityToken', $publicCertificate);
$filterHelper->setAttribute($binarySecurityToken, null, 'EncodingType', Helper::NAME_WSS_SMS . '#Base64Binary');
$filterHelper->setAttribute($binarySecurityToken, null, 'ValueType', Helper::NAME_WSS_X509 . '#X509v3');
$filterHelper->setAttribute($binarySecurityToken, Helper::NS_WSU, 'Id', $guid);
$security->insertBefore($binarySecurityToken, $signature);
// encrypt soap document
if (null !== $this->serviceSecurityKey && $this->serviceSecurityKey->hasKeys()) {
$guid = 'EncKey-' . Helper::generateUUID();
// add token references
$keyInfo = null;
if (null !== $this->tokenReferenceEncryption) {
$keyInfo = $this->createKeyInfo($filterHelper, $this->tokenReferenceEncryption, $guid, $this->serviceSecurityKey->getPublicKey());
}
$encryptedKey = XmlSecurityEnc::createEncryptedKey($guid, $this->serviceSecurityKey->getPrivateKey(), $this->serviceSecurityKey->getPublicKey(), $security, $signature, $keyInfo);
$referenceList = XmlSecurityEnc::createReferenceList($encryptedKey);
// token reference to encrypted key
$keyInfo = $this->createKeyInfo($filterHelper, self::TOKEN_REFERENCE_SECURITY_TOKEN, $guid);
$nodes = $this->createNodeListForEncryption($dom);
foreach ($nodes as $node) {
$type = XmlSecurityEnc::ELEMENT;
if ($node->localName == 'Body') {
$type = XmlSecurityEnc::CONTENT;
}
XmlSecurityEnc::encryptNode($node, $type, $this->serviceSecurityKey->getPrivateKey(), $referenceList, $keyInfo);
}
}
}
}
/**
* Gets the security referenced in the given $encryptedData element.
*
* You can add your own key resolver by calling:
* $ns = 'myns';
* $localname = 'MyKeyInfo';
* $keyResolver = array('MyClass' => 'function');
* \ass\XmlSecurity\DSig::addKeyInfoResolver($ns, $localName, $keyResolver);
*
* @param DOMElement $encryptedData Encrypted data element
* @param Key $key Key to decrypt EncryptedKey
*
* @return Key|null
*/
public static function getSecurityKey(DOMElement $encryptedData, Key $key = null)
{
$encryptedMethod = $encryptedData->getElementsByTagNameNS(self::NS_XMLENC, 'EncryptionMethod')->item(0);
if (!is_null($encryptedMethod)) {
$algorithm = $encryptedMethod->getAttribute('Algorithm');
$keyInfo = $encryptedData->getElementsByTagNameNS(DSig::NS_XMLDSIG, 'KeyInfo')->item(0);
if (!is_null($keyInfo)) {
if (null !== $key) {
$encryptedKey = self::locateEncryptedKey($keyInfo);
if (null !== $encryptedKey) {
$keyString = Enc::decryptEncryptedKey($encryptedKey, $key);
return Key::factory($algorithm, $keyString, false, Key::TYPE_PRIVATE);
} else {
$class = __CLASS__;
$keyResolver = function (DOMElement $node, $algorithm) use($class, $key) {
if ($class::RETRIEVAL_METHOD_ENCRYPTED_KEY == $node->getAttribute('Type')) {
$uri = $node->getAttribute('URI');
$referencedNode = $class::getReferenceNodeForUri($node, $uri);
if (null !== $referencedNode && $class::NS_XMLENC == $referencedNode->namespaceURI && 'EncryptedKey' == $referencedNode->localName) {
$keyString = $class::decryptEncryptedKey($referencedNode, $key);
return Key::factory($algorithm, $keyString, false, Key::TYPE_PRIVATE);
}
}
return null;
};
DSig::addKeyInfoResolver(DSig::NS_XMLDSIG, 'RetrievalMethod', $keyResolver);
}
}
return DSig::getSecurityKeyFromKeyInfo($keyInfo, $algorithm);
}
}
return null;
}
/**
* Modify the given request XML.
*
* @param \BeSimple\SoapCommon\SoapResponse $response SOAP response
*
* @return void
*/
public function filterResponse(CommonSoapResponse $response)
{
// get \DOMDocument from SOAP response
$dom = $response->getContentDocument();
// locate security header
$security = $dom->getElementsByTagNameNS(Helper::NS_WSS, 'Security')->item(0);
if (null !== $security) {
// add SecurityTokenReference resolver for KeyInfo
$keyResolver = array($this, 'keyInfoSecurityTokenReferenceResolver');
XmlSecurityDSig::addKeyInfoResolver(Helper::NS_WSS, 'SecurityTokenReference', $keyResolver);
// do we have a reference list in header
$referenceList = XmlSecurityEnc::locateReferenceList($security);
// get a list of encrypted nodes
$encryptedNodes = XmlSecurityEnc::locateEncryptedData($dom, $referenceList);
// decrypt them
if (null !== $encryptedNodes) {
foreach ($encryptedNodes as $encryptedNode) {
XmlSecurityEnc::decryptNode($encryptedNode);
}
}
// locate signature node
$signature = XmlSecurityDSig::locateSignature($security);
if (null !== $signature) {
// verify references
$options = array('id_ns_prefix' => Helper::PFX_WSU, 'id_prefix_ns' => Helper::NS_WSU);
if (XmlSecurityDSig::verifyReferences($signature, $options) !== true) {
throw new \SoapFault('wsse:FailedCheck', 'The signature or decryption was invalid');
}
// verify signature
if (XmlSecurityDSig::verifyDocumentSignature($signature) !== true) {
throw new \SoapFault('wsse:FailedCheck', 'The signature or decryption was invalid');
}
}
$security->parentNode->removeChild($security);
}
}
