/**
* 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.cxf.systest.sts.claims;
import java.util.List;
import org.w3c.dom.Element;
import org.apache.cxf.sts.claims.ClaimTypes;
import org.apache.wss4j.common.crypto.Crypto;
import org.apache.wss4j.common.ext.WSSecurityException;
import org.apache.wss4j.common.saml.SamlAssertionWrapper;
import org.apache.wss4j.stax.impl.securityToken.SamlSecurityTokenImpl;
import org.apache.wss4j.stax.securityToken.SamlSecurityToken;
import org.apache.wss4j.stax.securityToken.WSSecurityTokenConstants;
import org.apache.wss4j.stax.validate.SamlTokenValidatorImpl;
import org.apache.wss4j.stax.validate.TokenContext;
import org.apache.xml.security.stax.securityToken.InboundSecurityToken;
import org.opensaml.xml.XMLObject;
/**
* This class validates a SAML Assertion and checks that it has an "AuthenticatedRole" attribute
* corresponding to "admin-user". Note that it only throws an error if the role has the wrong
* value, not if the role doesn't exist. This is because the WS-SecurityPolicy validation will
* check to make sure that the correct defined Claims have been met in the token.
*/
public class StaxClaimsValidator extends SamlTokenValidatorImpl {
@SuppressWarnings("unchecked")
@Override
public <T extends SamlSecurityToken & InboundSecurityToken> T validate(
final SamlAssertionWrapper samlAssertionWrapper,
final InboundSecurityToken subjectSecurityToken,
final TokenContext tokenContext
) throws WSSecurityException {
// Check conditions
checkConditions(samlAssertionWrapper);
// Check OneTimeUse Condition
checkOneTimeUse(samlAssertionWrapper,
tokenContext.getWssSecurityProperties().getSamlOneTimeUseReplayCache());
// Validate the assertion against schemas/profiles
validateAssertion(samlAssertionWrapper);
// Now check Claims
boolean valid = false;
if (samlAssertionWrapper.getSaml1() != null) {
valid = handleSAML1Assertion(samlAssertionWrapper.getSaml1());
} else if (samlAssertionWrapper.getSaml2() != null) {
valid = handleSAML2Assertion(samlAssertionWrapper.getSaml2());
}
if (!valid) {
throw new WSSecurityException(WSSecurityException.ErrorCode.FAILURE, "invalidSAMLsecurity");
}
Crypto sigVerCrypto = null;
if (samlAssertionWrapper.isSigned()) {
sigVerCrypto = tokenContext.getWssSecurityProperties().getSignatureVerificationCrypto();
}
SamlSecurityTokenImpl securityToken = new SamlSecurityTokenImpl(
samlAssertionWrapper, subjectSecurityToken,
tokenContext.getWsSecurityContext(),
sigVerCrypto,
WSSecurityTokenConstants.KeyIdentifier_NoKeyInfo,
tokenContext.getWssSecurityProperties());
securityToken.setElementPath(tokenContext.getElementPath());
securityToken.setXMLSecEvent(tokenContext.getFirstXMLSecEvent());
return (T)securityToken;
}
private boolean handleSAML1Assertion(
org.opensaml.saml1.core.Assertion assertion
) throws WSSecurityException {
List<org.opensaml.saml1.core.AttributeStatement> attributeStatements =
assertion.getAttributeStatements();
if (attributeStatements == null || attributeStatements.isEmpty()) {
throw new WSSecurityException(WSSecurityException.ErrorCode.FAILURE, "invalidSAMLsecurity");
}
for (org.opensaml.saml1.core.AttributeStatement statement : attributeStatements) {
List<org.opensaml.saml1.core.Attribute> attributes = statement.getAttributes();
for (org.opensaml.saml1.core.Attribute attribute : attributes) {
if (!ClaimTypes.URI_BASE.toString().equals(attribute.getAttributeNamespace())) {
continue;
}
for (XMLObject attributeValue : attribute.getAttributeValues()) {
Element attributeValueElement = attributeValue.getDOM();
String text = attributeValueElement.getTextContent();
if (!"admin-user".equals(text)) {
return false;
}
}
}
}
return true;
}
private boolean handleSAML2Assertion(
org.opensaml.saml2.core.Assertion assertion
) throws WSSecurityException {
List<org.opensaml.saml2.core.AttributeStatement> attributeStatements =
assertion.getAttributeStatements();
if (attributeStatements == null || attributeStatements.isEmpty()) {
throw new WSSecurityException(WSSecurityException.ErrorCode.FAILURE, "invalidSAMLsecurity");
}
for (org.opensaml.saml2.core.AttributeStatement statement : attributeStatements) {
List<org.opensaml.saml2.core.Attribute> attributes = statement.getAttributes();
for (org.opensaml.saml2.core.Attribute attribute : attributes) {
if (!attribute.getName().startsWith(ClaimTypes.URI_BASE.toString())) {
continue;
}
for (XMLObject attributeValue : attribute.getAttributeValues()) {
Element attributeValueElement = attributeValue.getDOM();
String text = attributeValueElement.getTextContent();
if (!"admin-user".equals(text)) {
return false;
}
}
}
}
return true;
}
}