public function testEncryption()
{
$key = Key::factory(Key::AES256_CBC);
$cert = Key::factory(Key::RSA_OAEP_MGF1P, $this->fixturesDir . '/mycert.pem', true, Key::TYPE_PUBLIC);
$tests = array(array('ref' => false, 'type' => Enc::ELEMENT, 'file' => 'encrypt_document_element.xml', 'desc' => 'Encrypt document with type ELEMENT'), array('ref' => false, 'type' => Enc::CONTENT, 'file' => 'encrypt_document_content.xml', 'desc' => 'Encrypt document with type CONTENT'), array('ref' => true, 'type' => Enc::ELEMENT, 'file' => 'encrypt_document_element_reference.xml', 'desc' => 'Encrypt document with type ELEMENT and key reference'), array('ref' => true, 'type' => Enc::CONTENT, 'file' => 'encrypt_document_content_reference.xml', 'desc' => 'Encrypt document with type CONTENT and key reference'));
foreach ($tests as $test) {
$doc = new DOMDocument();
$doc->load($this->fixturesDir . '/Enc/encrypt_document.xml');
if ($test['ref']) {
$guid = 'EncKey-57cf0489-02e2-45c0-9fcc-fe1a51b53ab2';
// static - normally use DSig::generateUUID()
$keyInfo = Enc::createEncryptedKeyReferenceKeyInfo($doc, $guid);
$encryptedData = Enc::encryptNode($doc->documentElement, $test['type'], $key, null, $keyInfo);
Enc::createEncryptedKey($guid, $key, $cert, $doc->documentElement);
} else {
$encryptedData = Enc::encryptNode($doc->documentElement, $test['type'], $key);
Enc::createEncryptedKey(null, $key, $cert, $encryptedData);
}
$file = $this->fixturesDir . '/Enc/' . $test['file'];
$expected = $this->removeCipherValues(file_get_contents($file));
$actual = $this->removeCipherValues($doc->saveXML());
$this->assertEquals($expected, $actual, $test['desc']);
}
}
/**
* 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);
}
}
}
}
