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/**
* 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.wss4j.dom.str;
import java.security.cert.X509Certificate;
import javax.xml.namespace.QName;
import org.apache.wss4j.common.crypto.Crypto;
import org.apache.wss4j.common.ext.WSSecurityException;
import org.apache.wss4j.common.saml.SAMLKeyInfo;
import org.apache.wss4j.common.saml.SAMLUtil;
import org.apache.wss4j.common.saml.SamlAssertionWrapper;
import org.apache.wss4j.common.token.BinarySecurity;
import org.apache.wss4j.common.token.Reference;
import org.apache.wss4j.common.token.SecurityTokenReference;
import org.apache.wss4j.common.token.X509Security;
import org.apache.wss4j.common.util.XMLUtils;
import org.apache.wss4j.dom.WSConstants;
import org.apache.wss4j.dom.WSDocInfo;
import org.apache.wss4j.dom.engine.WSSecurityEngineResult;
import org.apache.wss4j.dom.handler.RequestData;
import org.apache.wss4j.dom.saml.WSSSAMLKeyInfoProcessor;
import org.w3c.dom.Element;
/**
* This implementation of STRParser is for parsing a SecurityTokenReference element, found in the
* KeyInfo element associated with an EncryptedKey element
*/
public class EncryptedKeySTRParser implements STRParser {
/**
* Parse a SecurityTokenReference element and extract credentials.
*
* @param parameters The parameters to parse
* @return the STRParserResult Object containing the parsing results
* @throws WSSecurityException
*/
public STRParserResult parseSecurityTokenReference(STRParserParameters parameters) throws WSSecurityException {
if (parameters == null || parameters.getData() == null || parameters.getData().getWsDocInfo() == null
|| parameters.getStrElement() == null) {
throw new WSSecurityException(
WSSecurityException.ErrorCode.FAILURE, "invalidSTRParserParameter"
);
}
SecurityTokenReference secRef =
new SecurityTokenReference(parameters.getStrElement(), parameters.getData().getBSPEnforcer());
String uri = null;
if (secRef.getReference() != null) {
uri = secRef.getReference().getURI();
uri = XMLUtils.getIDFromReference(uri);
} else if (secRef.containsKeyIdentifier()) {
uri = secRef.getKeyIdentifierValue();
}
WSSecurityEngineResult result = parameters.getData().getWsDocInfo().getResult(uri);
if (result != null) {
return processPreviousResult(result, secRef, parameters);
}
return processSTR(secRef, parameters);
}
/**
* Process a previous security result
*/
private STRParserResult processPreviousResult(
WSSecurityEngineResult result,
SecurityTokenReference secRef,
STRParserParameters parameters
) throws WSSecurityException {
STRParserResult parserResult = new STRParserResult();
RequestData data = parameters.getData();
Integer action = (Integer) result.get(WSSecurityEngineResult.TAG_ACTION);
if (action != null && WSConstants.BST == action.intValue()) {
BinarySecurity token =
(BinarySecurity)result.get(
WSSecurityEngineResult.TAG_BINARY_SECURITY_TOKEN
);
STRParserUtil.checkBinarySecurityBSPCompliance(secRef, token, data.getBSPEnforcer());
X509Certificate[] certs =
(X509Certificate[])result.get(
WSSecurityEngineResult.TAG_X509_CERTIFICATES
);
parserResult.setCerts(certs);
} else if (action != null
&& (WSConstants.ST_UNSIGNED == action.intValue() || WSConstants.ST_SIGNED == action.intValue())) {
SamlAssertionWrapper samlAssertion =
(SamlAssertionWrapper)result.get(WSSecurityEngineResult.TAG_SAML_ASSERTION);
STRParserUtil.checkSamlTokenBSPCompliance(secRef, samlAssertion, data.getBSPEnforcer());
SAMLKeyInfo keyInfo =
SAMLUtil.getCredentialFromSubject(samlAssertion, new WSSSAMLKeyInfoProcessor(data),
data.getSigVerCrypto(), data.getCallbackHandler());
parserResult.setCerts(keyInfo.getCerts());
parserResult.setPublicKey(keyInfo.getPublicKey());
} else {
throw new WSSecurityException(
WSSecurityException.ErrorCode.UNSUPPORTED_SECURITY_TOKEN,
"unsupportedBinaryTokenType"
);
}
REFERENCE_TYPE referenceType = getReferenceType(secRef);
if (referenceType != null) {
parserResult.setReferenceType(referenceType);
}
return parserResult;
}
private STRParserResult processSTR(
SecurityTokenReference secRef, STRParserParameters parameters
) throws WSSecurityException {
STRParserResult parserResult = new STRParserResult();
RequestData data = parameters.getData();
Element strElement = parameters.getStrElement();
WSDocInfo wsDocInfo = data.getWsDocInfo();
Crypto crypto = data.getDecCrypto();
if (secRef.containsKeyIdentifier()) {
if (WSConstants.WSS_SAML_KI_VALUE_TYPE.equals(secRef.getKeyIdentifierValueType())
|| WSConstants.WSS_SAML2_KI_VALUE_TYPE.equals(secRef.getKeyIdentifierValueType())) {
SamlAssertionWrapper samlAssertion =
STRParserUtil.getAssertionFromKeyIdentifier(
secRef, strElement, data
);
STRParserUtil.checkSamlTokenBSPCompliance(secRef, samlAssertion, data.getBSPEnforcer());
SAMLKeyInfo samlKi =
SAMLUtil.getCredentialFromSubject(samlAssertion,
new WSSSAMLKeyInfoProcessor(data),
data.getSigVerCrypto(), data.getCallbackHandler());
parserResult.setCerts(samlKi.getCerts());
parserResult.setPublicKey(samlKi.getPublicKey());
} else {
STRParserUtil.checkBinarySecurityBSPCompliance(secRef, null, data.getBSPEnforcer());
parserResult.setCerts(secRef.getKeyIdentifier(crypto));
}
} else if (secRef.containsX509Data() || secRef.containsX509IssuerSerial()) {
parserResult.setReferenceType(REFERENCE_TYPE.ISSUER_SERIAL);
parserResult.setCerts(secRef.getX509IssuerSerial(crypto));
} else if (secRef.containsReference()) {
Reference reference = secRef.getReference();
Element bstElement =
STRParserUtil.getTokenElement(strElement.getOwnerDocument(), wsDocInfo, data.getCallbackHandler(),
reference.getURI(), reference.getValueType());
// at this point ... check token type: Binary
QName el = new QName(bstElement.getNamespaceURI(), bstElement.getLocalName());
if (el.equals(WSConstants.BINARY_TOKEN)) {
X509Security token = new X509Security(bstElement, data.getBSPEnforcer());
STRParserUtil.checkBinarySecurityBSPCompliance(secRef, token, data.getBSPEnforcer());
parserResult.setCerts(new X509Certificate[]{token.getX509Certificate(crypto)});
} else {
throw new WSSecurityException(
WSSecurityException.ErrorCode.UNSUPPORTED_SECURITY_TOKEN,
"unsupportedBinaryTokenType"
);
}
}
REFERENCE_TYPE referenceType = getReferenceType(secRef);
if (referenceType != null) {
parserResult.setReferenceType(referenceType);
}
return parserResult;
}
private REFERENCE_TYPE getReferenceType(SecurityTokenReference secRef) {
if (secRef.containsReference()) {
return REFERENCE_TYPE.DIRECT_REF;
} else if (secRef.containsKeyIdentifier()) {
if (SecurityTokenReference.THUMB_URI.equals(secRef.getKeyIdentifierValueType())) {
return REFERENCE_TYPE.THUMBPRINT_SHA1;
} else {
return REFERENCE_TYPE.KEY_IDENTIFIER;
}
}
return null;
}
}
