org.apache.ws.security.saml.ext.AssertionWrapper Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.ws.security.saml.ext;
import org.apache.ws.security.WSDocInfo;
import org.apache.ws.security.WSSecurityException;
import org.apache.ws.security.components.crypto.Crypto;
import org.apache.ws.security.components.crypto.CryptoType;
import org.apache.ws.security.handler.RequestData;
import org.apache.ws.security.saml.SAMLKeyInfo;
import org.apache.ws.security.saml.SAMLUtil;
import org.apache.ws.security.saml.ext.builder.SAML1ComponentBuilder;
import org.apache.ws.security.saml.ext.builder.SAML2ComponentBuilder;
import org.apache.ws.security.util.DOM2Writer;
import org.apache.ws.security.util.UUIDGenerator;
import org.apache.xml.security.exceptions.XMLSecurityException;
import org.apache.xml.security.signature.XMLSignature;
import org.apache.xml.security.signature.XMLSignatureException;
import org.opensaml.common.SAMLVersion;
import org.opensaml.common.SignableSAMLObject;
import org.opensaml.saml1.core.AttributeStatement;
import org.opensaml.saml1.core.AuthenticationStatement;
import org.opensaml.saml1.core.AuthorizationDecisionStatement;
import org.opensaml.saml1.core.ConfirmationMethod;
import org.opensaml.saml1.core.Subject;
import org.opensaml.saml1.core.SubjectConfirmation;
import org.opensaml.saml1.core.SubjectStatement;
import org.opensaml.saml2.core.AuthnStatement;
import org.opensaml.saml2.core.AuthzDecisionStatement;
import org.opensaml.saml2.core.Issuer;
import org.opensaml.security.SAMLSignatureProfileValidator;
import org.opensaml.xml.XMLObject;
import org.opensaml.xml.security.x509.BasicX509Credential;
import org.opensaml.xml.security.x509.X509KeyInfoGeneratorFactory;
import org.opensaml.xml.signature.KeyInfo;
import org.opensaml.xml.signature.Signature;
import org.opensaml.xml.signature.SignatureConstants;
import org.opensaml.xml.signature.SignatureValidator;
import org.opensaml.xml.validation.ValidationException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.UnsupportedCallbackException;
import java.io.IOException;
import java.security.PrivateKey;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.List;
/**
* Class AssertionWrapper can generate, sign, and validate both SAML v1.1
* and SAML v2.0 assertions.
*
* Created on May 18, 2009
*/
public class AssertionWrapper {
/**
* Field log
*/
private static final org.apache.commons.logging.Log log =
org.apache.commons.logging.LogFactory.getLog(AssertionWrapper.class);
/**
* Raw SAML assertion data
*/
private XMLObject xmlObject = null;
/**
* Typed SAML v1.1 assertion
*/
private org.opensaml.saml1.core.Assertion saml1 = null;
/**
* Typed SAML v2.0 assertion
*/
private org.opensaml.saml2.core.Assertion saml2 = null;
/**
* Which SAML specification to use (currently, only v1.1 and v2.0 are supported)
*/
private SAMLVersion samlVersion;
/**
* Fully qualified class name of the SAML callback handler implementation to use.
* NOTE: Each application should provide a unique implementation of this
* CallbackHandler that is able to extract any dynamic data from the
* local environment that should be included in the generated SAML statements.
*/
private CallbackHandler samlCallbackHandler = null;
/**
* The Assertion as a DOM element
*/
private Element assertionElement;
/**
* The SAMLKeyInfo object associated with the Subject KeyInfo
*/
private SAMLKeyInfo subjectKeyInfo;
/**
* The SAMLKeyInfo object associated with the Signature on the Assertion
*/
private SAMLKeyInfo signatureKeyInfo;
/**
* Default Canonicalization algorithm used for signing.
*/
private final String defaultCanonicalizationAlgorithm = SignatureConstants.ALGO_ID_C14N_EXCL_OMIT_COMMENTS;
/**
* Default RSA Signature algorithm used for signing.
*/
private final String defaultRSASignatureAlgorithm = SignatureConstants.ALGO_ID_SIGNATURE_RSA_SHA1;
/**
* Default DSA Signature algorithm used for signing.
*/
private final String defaultDSASignatureAlgorithm = SignatureConstants.ALGO_ID_SIGNATURE_DSA;
/**
* Constructor AssertionWrapper creates a new AssertionWrapper instance.
*
* @param element of type Element
* @throws UnmarshallingException when
*/
public AssertionWrapper(Element element) throws WSSecurityException {
OpenSAMLUtil.initSamlEngine();
this.xmlObject = OpenSAMLUtil.fromDom(element);
if (xmlObject instanceof org.opensaml.saml1.core.Assertion) {
this.saml1 = (org.opensaml.saml1.core.Assertion) xmlObject;
samlVersion = SAMLVersion.VERSION_11;
} else if (xmlObject instanceof org.opensaml.saml2.core.Assertion) {
this.saml2 = (org.opensaml.saml2.core.Assertion) xmlObject;
samlVersion = SAMLVersion.VERSION_20;
} else {
log.error(
"AssertionWrapper: found unexpected type "
+ (xmlObject != null ? xmlObject.getClass().getName() : xmlObject)
);
}
assertionElement = element;
}
/**
* Constructor AssertionWrapper creates a new AssertionWrapper instance.
*
* @param saml2 of type Assertion
*/
public AssertionWrapper(org.opensaml.saml2.core.Assertion saml2) {
this((XMLObject)saml2);
}
/**
* Constructor AssertionWrapper creates a new AssertionWrapper instance.
*
* @param saml1 of type Assertion
*/
public AssertionWrapper(org.opensaml.saml1.core.Assertion saml1) {
this((XMLObject)saml1);
}
/**
* Constructor AssertionWrapper creates a new AssertionWrapper instance.
* This is the primary constructor. All other constructor calls should
* be routed to this method to ensure that the wrapper is initialized
* correctly.
*
* @param xmlObject of type XMLObject
*/
public AssertionWrapper(XMLObject xmlObject) {
OpenSAMLUtil.initSamlEngine();
this.xmlObject = xmlObject;
if (xmlObject instanceof org.opensaml.saml1.core.Assertion) {
this.saml1 = (org.opensaml.saml1.core.Assertion) xmlObject;
samlVersion = SAMLVersion.VERSION_11;
} else if (xmlObject instanceof org.opensaml.saml2.core.Assertion) {
this.saml2 = (org.opensaml.saml2.core.Assertion) xmlObject;
samlVersion = SAMLVersion.VERSION_20;
} else {
log.error(
"AssertionWrapper: found unexpected type "
+ (xmlObject != null ? xmlObject.getClass().getName() : xmlObject)
);
}
}
/**
* Constructor AssertionWrapper creates a new AssertionWrapper instance.
* This constructor is primarily called on the client side to initialize
* the wrapper from a configuration file.
* NOTE: The OpenSaml library MUST be initialized prior to constructing an AssertionWrapper
*
* @param parms of type SAMLParms
*/
public AssertionWrapper(SAMLParms parms) throws WSSecurityException {
OpenSAMLUtil.initSamlEngine();
//
// Create the SAML callback that the handler will use to get the required data from the
// client application.
//
SAMLCallback[] samlCallbacks = new SAMLCallback[] { new SAMLCallback() };
try {
// Get the SAML source data using the currently configured callback implementation.
if (samlCallbackHandler == null) {
samlCallbackHandler = parms.getCallbackHandler();
}
samlCallbackHandler.handle(samlCallbacks);
} catch (IOException e) {
throw new IllegalStateException(
"IOException while creating SAML assertion wrapper", e
);
} catch (UnsupportedCallbackException e) {
throw new IllegalStateException(
"UnsupportedCallbackException while creating SAML assertion wrapper", e
);
}
samlVersion = samlCallbacks[0].getSamlVersion();
if (samlVersion == null) {
samlVersion = parms.getSAMLVersion();
}
String issuer = samlCallbacks[0].getIssuer();
if (issuer == null && parms.getIssuer() != null) {
issuer = parms.getIssuer();
}
if (samlVersion.equals(SAMLVersion.VERSION_11)) {
// Build a SAML v1.1 assertion
saml1 = SAML1ComponentBuilder.createSamlv1Assertion(issuer);
try {
// Process the SAML authentication statement(s)
List authenticationStatements =
SAML1ComponentBuilder.createSamlv1AuthenticationStatement(
samlCallbacks[0].getAuthenticationStatementData()
);
saml1.getAuthenticationStatements().addAll(authenticationStatements);
// Process the SAML attribute statement(s)
List attributeStatements =
SAML1ComponentBuilder.createSamlv1AttributeStatement(
samlCallbacks[0].getAttributeStatementData()
);
saml1.getAttributeStatements().addAll(attributeStatements);
// Process the SAML authorization decision statement(s)
List authDecisionStatements =
SAML1ComponentBuilder.createSamlv1AuthorizationDecisionStatement(
samlCallbacks[0].getAuthDecisionStatementData()
);
saml1.getAuthorizationDecisionStatements().addAll(authDecisionStatements);
// Build the complete assertion
org.opensaml.saml1.core.Conditions conditions =
SAML1ComponentBuilder.createSamlv1Conditions(samlCallbacks[0].getConditions());
saml1.setConditions(conditions);
} catch (org.opensaml.xml.security.SecurityException ex) {
throw new WSSecurityException(
"Error generating KeyInfo from signing credential", ex
);
}
// Set the OpenSaml2 XMLObject instance
xmlObject = saml1;
} else if (samlVersion.equals(SAMLVersion.VERSION_20)) {
// Build a SAML v2.0 assertion
saml2 = SAML2ComponentBuilder.createAssertion();
Issuer samlIssuer = SAML2ComponentBuilder.createIssuer(issuer);
// Authn Statement(s)
List authnStatements =
SAML2ComponentBuilder.createAuthnStatement(
samlCallbacks[0].getAuthenticationStatementData()
);
saml2.getAuthnStatements().addAll(authnStatements);
// Attribute statement(s)
List attributeStatements =
SAML2ComponentBuilder.createAttributeStatement(
samlCallbacks[0].getAttributeStatementData()
);
saml2.getAttributeStatements().addAll(attributeStatements);
// AuthzDecisionStatement(s)
List authDecisionStatements =
SAML2ComponentBuilder.createAuthorizationDecisionStatement(
samlCallbacks[0].getAuthDecisionStatementData()
);
saml2.getAuthzDecisionStatements().addAll(authDecisionStatements);
// Build the SAML v2.0 assertion
saml2.setIssuer(samlIssuer);
try {
org.opensaml.saml2.core.Subject subject =
SAML2ComponentBuilder.createSaml2Subject(samlCallbacks[0].getSubject());
saml2.setSubject(subject);
} catch (org.opensaml.xml.security.SecurityException ex) {
throw new WSSecurityException(
"Error generating KeyInfo from signing credential", ex
);
}
org.opensaml.saml2.core.Conditions conditions =
SAML2ComponentBuilder.createConditions(samlCallbacks[0].getConditions());
saml2.setConditions(conditions);
// Set the OpenSaml2 XMLObject instance
xmlObject = saml2;
}
}
/**
* Method getSaml1 returns the saml1 of this AssertionWrapper object.
*
* @return the saml1 (type Assertion) of this AssertionWrapper object.
*/
public org.opensaml.saml1.core.Assertion getSaml1() {
return saml1;
}
/**
* Method getSaml2 returns the saml2 of this AssertionWrapper object.
*
* @return the saml2 (type Assertion) of this AssertionWrapper object.
*/
public org.opensaml.saml2.core.Assertion getSaml2() {
return saml2;
}
/**
* Method getXmlObject returns the xmlObject of this AssertionWrapper object.
*
* @return the xmlObject (type XMLObject) of this AssertionWrapper object.
*/
public XMLObject getXmlObject() {
return xmlObject;
}
/**
* Method isCreated returns the created of this AssertionWrapper object.
*
* @return the created (type boolean) of this AssertionWrapper object.
*/
public boolean isCreated() {
return saml1 != null || saml2 != null;
}
/**
* Create a DOM from the current XMLObject content. If the user-supplied doc is not null,
* reparent the returned Element so that it is compatible with the user-supplied document.
*
* @param doc of type Document
* @return Element
*/
public Element toDOM(Document doc) throws WSSecurityException {
assertionElement = OpenSAMLUtil.toDom(xmlObject, doc);
return assertionElement;
}
/**
* Method assertionToString ...
*
* @return String
*/
public String assertionToString() throws WSSecurityException {
Element element = toDOM(null);
return DOM2Writer.nodeToString(element);
}
/**
* Method getId returns the id of this AssertionWrapper object.
*
* @return the id (type String) of this AssertionWrapper object.
*/
public String getId() {
String id = null;
if (saml2 != null) {
id = saml2.getID();
} else if (saml1 != null) {
id = saml1.getID();
} else {
log.error("AssertionWrapper: unable to return ID - no saml assertion object");
}
if (id == null || id.length() == 0) {
log.error("AssertionWrapper: ID was null, seeting a new ID value");
id = "_" + UUIDGenerator.getUUID();
if (saml2 != null) {
saml2.setID(id);
} else if (saml1 != null) {
saml1.setID(id);
}
}
return id;
}
/**
* Method getIssuerString returns the issuerString of this AssertionWrapper object.
*
* @return the issuerString (type String) of this AssertionWrapper object.
*/
public String getIssuerString() {
if (saml2 != null && saml2.getIssuer() != null) {
return saml2.getIssuer().getValue();
} else if (saml1 != null) {
return saml1.getIssuer();
}
log.error(
"AssertionWrapper: unable to return Issuer string - no saml assertion "
+ "object or issuer is null"
);
return null;
}
/**
* Method getConfirmationMethods returns the confirmationMethods of this
* AssertionWrapper object.
*
* @return the confirmationMethods of this AssertionWrapper object.
*/
public List getConfirmationMethods() {
List methods = new ArrayList();
if (saml2 != null) {
org.opensaml.saml2.core.Subject subject = saml2.getSubject();
List confirmations =
subject.getSubjectConfirmations();
for (org.opensaml.saml2.core.SubjectConfirmation confirmation : confirmations) {
methods.add(confirmation.getMethod());
}
} else if (saml1 != null) {
List subjectStatements = new ArrayList();
subjectStatements.addAll(saml1.getSubjectStatements());
subjectStatements.addAll(saml1.getAuthenticationStatements());
subjectStatements.addAll(saml1.getAttributeStatements());
subjectStatements.addAll(saml1.getAuthorizationDecisionStatements());
for (SubjectStatement subjectStatement : subjectStatements) {
Subject subject = subjectStatement.getSubject();
if (subject != null) {
SubjectConfirmation confirmation = subject.getSubjectConfirmation();
if (confirmation != null) {
XMLObject data = confirmation.getSubjectConfirmationData();
if (data instanceof ConfirmationMethod) {
ConfirmationMethod method = (ConfirmationMethod) data;
methods.add(method.getConfirmationMethod());
}
List confirmationMethods =
confirmation.getConfirmationMethods();
for (ConfirmationMethod confirmationMethod : confirmationMethods) {
methods.add(confirmationMethod.getConfirmationMethod());
}
}
}
}
}
return methods;
}
/**
* Method isSigned returns the signed of this AssertionWrapper object.
*
* @return the signed (type boolean) of this AssertionWrapper object.
*/
public boolean isSigned() {
if (saml2 != null) {
return saml2.isSigned() || saml2.getSignature() != null;
} else if (saml1 != null) {
return saml1.isSigned() || saml1.getSignature() != null;
}
return false;
}
/**
* Method setSignature sets the signature of this AssertionWrapper object.
*
* @param signature the signature of this AssertionWrapper object.
*/
public void setSignature(Signature signature) {
if (xmlObject instanceof SignableSAMLObject) {
SignableSAMLObject signableObject = (SignableSAMLObject) xmlObject;
signableObject.setSignature(signature);
signableObject.releaseDOM();
signableObject.releaseChildrenDOM(true);
} else {
log.error("Attempt to sign an unsignable object " + xmlObject.getClass().getName());
}
}
/**
* Create an enveloped signature on the assertion that has been created.
*
* @param issuerKeyName the Issuer KeyName to use with the issuerCrypto argument
* @param issuerKeyPassword the Issuer Password to use with the issuerCrypto argument
* @param issuerCrypto the Issuer Crypto instance
* @param sendKeyValue whether to send the key value or not
* @throws WSSecurityException
*/
public void signAssertion(String issuerKeyName, String issuerKeyPassword,
Crypto issuerCrypto, boolean sendKeyValue)
throws WSSecurityException {
signAssertion(issuerKeyName, issuerKeyPassword, issuerCrypto,
sendKeyValue, defaultCanonicalizationAlgorithm,
defaultRSASignatureAlgorithm);
}
/**
* Create an enveloped signature on the assertion that has been created.
*
* @param issuerKeyName the Issuer KeyName to use with the issuerCrypto argument
* @param issuerKeyPassword the Issuer Password to use with the issuerCrypto argument
* @param issuerCrypto the Issuer Crypto instance
* @param sendKeyValue whether to send the key value or not
* @param canonicalizationAlgorithm the canonicalization algorithm to be used for signing
* @param signatureAlgorithm the signature algorithm to be used for signing
* @throws WSSecurityException
*/
public void signAssertion(String issuerKeyName, String issuerKeyPassword,
Crypto issuerCrypto, boolean sendKeyValue,
String canonicalizationAlgorithm, String signatureAlgorithm)
throws WSSecurityException {
//
// Create the signature
//
Signature signature = OpenSAMLUtil.buildSignature();
signature.setCanonicalizationAlgorithm(canonicalizationAlgorithm);
log.debug("Using Canonicalization algorithm " + canonicalizationAlgorithm);
// prepare to sign the SAML token
CryptoType cryptoType = new CryptoType(CryptoType.TYPE.ALIAS);
cryptoType.setAlias(issuerKeyName);
X509Certificate[] issuerCerts = issuerCrypto.getX509Certificates(cryptoType);
if (issuerCerts == null) {
throw new WSSecurityException(
"No issuer certs were found to sign the SAML Assertion using issuer name: "
+ issuerKeyName);
}
String sigAlgo = signatureAlgorithm;
String pubKeyAlgo = issuerCerts[0].getPublicKey().getAlgorithm();
if (log.isDebugEnabled()) {
log.debug("automatic sig algo detection: " + pubKeyAlgo);
}
if (pubKeyAlgo.equalsIgnoreCase("DSA")) {
sigAlgo = defaultDSASignatureAlgorithm;
}
log.debug("Using Signature algorithm " + sigAlgo);
PrivateKey privateKey = null;
try {
privateKey = issuerCrypto.getPrivateKey(issuerKeyName, issuerKeyPassword);
} catch (Exception ex) {
throw new WSSecurityException(ex.getMessage(), ex);
}
signature.setSignatureAlgorithm(sigAlgo);
BasicX509Credential signingCredential = new BasicX509Credential();
signingCredential.setEntityCertificate(issuerCerts[0]);
signingCredential.setPrivateKey(privateKey);
signature.setSigningCredential(signingCredential);
X509KeyInfoGeneratorFactory kiFactory = new X509KeyInfoGeneratorFactory();
if (sendKeyValue) {
kiFactory.setEmitPublicKeyValue(true);
} else {
kiFactory.setEmitEntityCertificate(true);
}
try {
KeyInfo keyInfo = kiFactory.newInstance().generate(
signingCredential);
signature.setKeyInfo(keyInfo);
} catch (org.opensaml.xml.security.SecurityException ex) {
throw new WSSecurityException(
"Error generating KeyInfo from signing credential", ex);
}
// add the signature to the assertion
setSignature(signature);
}
/**
* Verify the signature of this assertion
*
* @throws ValidationException
*/
public void verifySignature(
RequestData data, WSDocInfo docInfo
) throws WSSecurityException {
Signature sig = null;
if (saml2 != null && saml2.getSignature() != null) {
sig = saml2.getSignature();
} else if (saml1 != null && saml1.getSignature() != null) {
sig = saml1.getSignature();
}
if (sig != null) {
KeyInfo keyInfo = sig.getKeyInfo();
SAMLKeyInfo samlKeyInfo =
SAMLUtil.getCredentialFromKeyInfo(
keyInfo.getDOM(), data, docInfo, data.getWssConfig().isWsiBSPCompliant()
);
if (samlKeyInfo == null) {
throw new WSSecurityException(
WSSecurityException.FAILURE, "invalidSAMLsecurity",
new Object[]{"cannot get certificate or key"}
);
}
SAMLSignatureProfileValidator validator = new SAMLSignatureProfileValidator();
try {
validator.validate(sig);
} catch (ValidationException ex) {
throw new WSSecurityException("SAML signature validation failed", ex);
}
BasicX509Credential credential = new BasicX509Credential();
if (samlKeyInfo.getCerts() != null) {
credential.setEntityCertificate(samlKeyInfo.getCerts()[0]);
} else if (samlKeyInfo.getPublicKey() != null) {
credential.setPublicKey(samlKeyInfo.getPublicKey());
} else {
throw new WSSecurityException(
WSSecurityException.FAILURE, "invalidSAMLsecurity",
new Object[]{"cannot get certificate or key"}
);
}
SignatureValidator sigValidator = new SignatureValidator(credential);
try {
sigValidator.validate(sig);
} catch (ValidationException ex) {
throw new WSSecurityException("SAML signature validation failed", ex);
}
signatureKeyInfo = samlKeyInfo;
} else {
log.debug("AssertionWrapper: no signature to validate");
}
}
/**
* This method parses the KeyInfo of the Subject for the holder-of-key confirmation
* method, as required by the SAML Token spec. It then stores the SAMLKeyInfo object that
* has been obtained for future processing by the SignatureProcessor.
* @throws WSSecurityException
*/
public void parseHOKSubject(
RequestData data, WSDocInfo docInfo
) throws WSSecurityException {
String confirmMethod = null;
List methods = getConfirmationMethods();
if (methods != null && methods.size() > 0) {
confirmMethod = methods.get(0);
}
if (OpenSAMLUtil.isMethodHolderOfKey(confirmMethod)) {
if (saml1 != null) {
subjectKeyInfo =
SAMLUtil.getCredentialFromSubject(saml1, data, docInfo,
data.getWssConfig().isWsiBSPCompliant());
} else if (saml2 != null) {
subjectKeyInfo =
SAMLUtil.getCredentialFromSubject(saml2, data, docInfo,
data.getWssConfig().isWsiBSPCompliant());
}
}
}
/**
* Method getSamlVersion returns the samlVersion of this AssertionWrapper object.
*
* @return the samlVersion (type SAMLVersion) of this AssertionWrapper object.
*/
public SAMLVersion getSamlVersion() {
if (samlVersion == null) {
// Try to set the version.
if (log.isDebugEnabled()) {
log.debug(
"The SAML version was null in getSamlVersion(). Recomputing SAML version..."
);
}
if (saml1 != null && saml2 == null) {
samlVersion = SAMLVersion.VERSION_11;
} else if (saml1 == null && saml2 != null) {
samlVersion = SAMLVersion.VERSION_20;
} else {
// We are only supporting SAML v1.1 or SAML v2.0 at this time.
throw new IllegalStateException(
"Could not determine the SAML version number. Check your "
+ "configuration and try again."
);
}
}
return samlVersion;
}
/**
* Get the Assertion as a DOM Element.
* @return the assertion as a DOM Element
*/
public Element getElement() {
return assertionElement;
}
/**
* Get the SAMLKeyInfo associated with the signature of the assertion
* @return the SAMLKeyInfo associated with the signature of the assertion
*/
public SAMLKeyInfo getSignatureKeyInfo() {
return signatureKeyInfo;
}
/**
* Get the SAMLKeyInfo associated with the Subject KeyInfo
* @return the SAMLKeyInfo associated with the Subject KeyInfo
*/
public SAMLKeyInfo getSubjectKeyInfo() {
return subjectKeyInfo;
}
/**
* Get the SignatureValue bytes of the signed SAML Assertion
* @return the SignatureValue bytes of the signed SAML Assertion
* @throws WSSecurityException
*/
public byte[] getSignatureValue() throws WSSecurityException {
Signature sig = null;
if (saml2 != null && saml2.getSignature() != null) {
sig = saml2.getSignature();
} else if (saml1 != null && saml1.getSignature() != null) {
sig = saml1.getSignature();
}
if (sig != null) {
Element signatureElement = sig.getDOM();
try {
// Use XML-Security class to obtain SignatureValue
XMLSignature xmlSignature = new XMLSignature(signatureElement, "");
return xmlSignature.getSignatureValue();
} catch (XMLSignatureException e) {
throw new WSSecurityException(WSSecurityException.FAILURE, "invalidSAMLsecurity");
} catch (XMLSecurityException e) {
throw new WSSecurityException(WSSecurityException.FAILURE, "invalidSAMLsecurity");
}
}
return null;
}
}
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