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/*
* Copyright 2004,2005 The Apache Software Foundation.
*
* Licensed 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.rahas.impl;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.axis2.description.Parameter;
import org.apache.rahas.RahasConstants;
import org.apache.rahas.RahasData;
import org.apache.rahas.Token;
import org.apache.rahas.TokenIssuer;
import org.apache.rahas.TrustException;
import org.apache.rahas.TrustUtil;
import org.apache.ws.security.conversation.ConversationConstants;
import org.apache.ws.security.conversation.ConversationException;
import org.apache.ws.security.message.token.SecurityContextToken;
import org.apache.ws.security.util.XmlSchemaDateFormat;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import java.text.DateFormat;
import java.util.Date;
public class SCTIssuer implements TokenIssuer {
public final static String COMPUTED_KEY = "ComputedKey";
private String configFile;
private OMElement configElement;
private String configParamName;
/**
* Issue a {@link SecurityContextToken} based on the wsse:Signature or
* wsse:UsernameToken
*
* This will support returning the SecurityContextToken with the following
* types of wst:RequestedProof tokens:
*
*
xenc:EncryptedKey
*
wst:ComputedKey
*
wst:BinarySecret (for secure transport)
*
*/
public SOAPEnvelope issue(RahasData data) throws TrustException {
SCTIssuerConfig config = null;
if (this.configElement != null) {
config = SCTIssuerConfig
.load(configElement
.getFirstChildWithName(SCTIssuerConfig.SCT_ISSUER_CONFIG));
}
// Look for the file
if (config == null && this.configFile != null) {
config = SCTIssuerConfig.load(this.configFile);
}
// Look for the param
if (config == null && this.configParamName != null) {
Parameter param = data.getInMessageContext().getParameter(this.configParamName);
if (param != null && param.getParameterElement() != null) {
config = SCTIssuerConfig.load(param.getParameterElement()
.getFirstChildWithName(
SCTIssuerConfig.SCT_ISSUER_CONFIG));
} else {
throw new TrustException("expectedParameterMissing",
new String[]{this.configParamName});
}
}
if (config == null) {
throw new TrustException("missingConfiguration",
new String[]{SCTIssuerConfig.SCT_ISSUER_CONFIG
.getLocalPart()});
}
// Env
return createEnvelope(data, config);
}
private SOAPEnvelope createEnvelope(RahasData data,
SCTIssuerConfig config) throws TrustException {
try {
SOAPEnvelope env = TrustUtil.createSOAPEnvelope(data.getSoapNs());
int wstVersion = data.getVersion();
// Get the document
Document doc = ((Element) env).getOwnerDocument();
SecurityContextToken sct =
new SecurityContextToken(this.getWSCVersion(data.getTokenType()), doc);
OMElement rstrElem;
if (wstVersion == RahasConstants.VERSION_05_12) {
/**
* If secure conversation version is http://docs.oasis-open.org/ws-sx/ws-trust/200512
* We have to wrap "request security token response" in a "request security token response
* collection".
* See WS-SecureConversation 1.3 spec's Section 3 - Establishing Security Contexts
* for more details.
*/
OMElement requestedSecurityTokenResponseCollection = TrustUtil
.createRequestSecurityTokenResponseCollectionElement(wstVersion, env.getBody());
rstrElem =
TrustUtil.createRequestSecurityTokenResponseElement(wstVersion,
requestedSecurityTokenResponseCollection);
} else {
rstrElem =
TrustUtil.createRequestSecurityTokenResponseElement(wstVersion,
env.getBody());
}
OMElement rstElem =
TrustUtil.createRequestedSecurityTokenElement(wstVersion, rstrElem);
rstElem.addChild((OMElement) sct.getElement());
String tokenType = data.getTokenType();
OMElement reqAttachedRef = null;
OMElement reqUnattachedRef = null;
if (config.isAddRequestedAttachedRef()) {
reqAttachedRef = TrustUtil.createRequestedAttachedRef(wstVersion,
rstrElem,
"#" + sct.getID(),
tokenType);
}
if (config.isAddRequestedUnattachedRef()) {
reqUnattachedRef = TrustUtil.createRequestedUnattachedRef(wstVersion,
rstrElem,
sct.getIdentifier(),
tokenType);
}
//Creation and expiration times
Date creationTime = new Date();
Date expirationTime = new Date();
expirationTime.setTime(creationTime.getTime() + config.getTtl());
// Use GMT time in milliseconds
DateFormat zulu = new XmlSchemaDateFormat();
// Add the Lifetime element
TrustUtil.createLifetimeElement(wstVersion,
rstrElem,
zulu.format(creationTime),
zulu.format(expirationTime));
// Store the tokens
Token sctToken = new Token(sct.getIdentifier(),
(OMElement) sct.getElement(),
creationTime,
expirationTime);
if(config.isAddRequestedAttachedRef()) {
sctToken.setAttachedReference(reqAttachedRef.getFirstElement());
}
if(config.isAddRequestedUnattachedRef()) {
sctToken.setUnattachedReference(reqUnattachedRef.getFirstElement());
}
byte[] secret = TokenIssuerUtil.getSharedSecret(data, config.getKeyComputation(), config.getKeySize());
sctToken.setSecret(secret);
//Add the RequestedProofToken
TokenIssuerUtil.handleRequestedProofToken(data,
wstVersion,
config,
rstrElem,
sctToken,
doc);
sctToken.setState(Token.ISSUED);
TrustUtil.getTokenStore(data.getInMessageContext()).add(sctToken);
return env;
} catch (ConversationException e) {
throw new TrustException(e.getMessage(), e);
}
}
public String getResponseAction(RahasData data) throws TrustException {
return TrustUtil.getActionValue(data.getVersion(), RahasConstants.RSTR_ACTION_SCT);
}
/**
* @see org.apache.rahas.TokenIssuer#setConfigurationFile(java.lang.String)
*/
public void setConfigurationFile(String configFile) {
this.configFile = configFile;
}
/**
* @see org.apache.rahas.TokenIssuer#setConfigurationElement(OMElement)
*/
public void setConfigurationElement(OMElement configElement) {
this.configElement = configElement;
}
public void setConfigurationParamName(String configParamName) {
this.configParamName = configParamName;
}
private int getWSCVersion(String tokenTypeValue) throws ConversationException {
if (tokenTypeValue == null) {
return ConversationConstants.DEFAULT_VERSION;
}
if (tokenTypeValue.startsWith(ConversationConstants.WSC_NS_05_02)) {
return ConversationConstants.getWSTVersion(ConversationConstants.WSC_NS_05_02);
} else if (tokenTypeValue.startsWith(ConversationConstants.WSC_NS_05_12)) {
return ConversationConstants.getWSTVersion(ConversationConstants.WSC_NS_05_12);
} else {
throw new ConversationException("unsupportedSecConvVersion");
}
}
}
