/*
* 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.ws.security.processor;
import org.apache.ws.security.WSDocInfo;
import org.apache.ws.security.WSPasswordCallback;
import org.apache.ws.security.WSSConfig;
import org.apache.ws.security.WSSecurityException;
import org.apache.ws.security.components.crypto.Crypto;
import org.apache.ws.security.message.token.SecurityContextToken;
import org.w3c.dom.Element;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.UnsupportedCallbackException;
import java.io.IOException;
import java.util.Vector;
/**
* The processor to process <code>wsc:SecurityContextToken</code>.
*
* @author Ruchith Fernando (ruchith.fernando@gmail.com)
*/
public class SecurityContextTokenProcessor implements Processor {
/**
* The <code>wsi:ID</code> of the <code>wsc:SecurityContextToken</code>
* element.
*/
private String sctId;
/**
* The secret associated with the <code>wsc:SecurityContextToken</code>.
*/
private byte[] secret;
/**
* The <code>wsc:Identifier</code> of the
* <code>wsc:SecurityContextToken</code> element.
*/
private String identifier;
public void handleToken(Element elem, Crypto crypto, Crypto decCrypto,
CallbackHandler cb, WSDocInfo wsDocInfo, Vector returnResults,
WSSConfig config) throws WSSecurityException {
SecurityContextToken sct = new SecurityContextToken(elem);
this.identifier = sct.getIdentifier();
this.secret = this.getSecret(cb, sct);
this.sctId = sct.getID();
}
/**
* Get the secret from the provided callback handler and return it.
*
* @param cb
* @param sct
* @return The key collected using the callback handler
*/
private byte[] getSecret(CallbackHandler cb, SecurityContextToken sct)
throws WSSecurityException {
if (cb == null) {
throw new WSSecurityException(WSSecurityException.FAILURE,
"noCallback");
}
WSPasswordCallback callback = new WSPasswordCallback(sct
.getIdentifier(), WSPasswordCallback.SECURITY_CONTEXT_TOKEN);
Callback[] callbacks = new Callback[1];
callbacks[0] = callback;
try {
cb.handle(callbacks);
} catch (IOException e) {
throw new WSSecurityException(WSSecurityException.FAILURE, "noKey",
new Object[] { sct.getIdentifier() });
} catch (UnsupportedCallbackException e) {
throw new WSSecurityException(WSSecurityException.FAILURE, "noKey",
new Object[] { sct.getIdentifier() });
}
return callback.getKey();
}
/**
* Return the id of the
*/
public String getId() {
return this.sctId;
}
/**
* @return Returns the identifier.
*/
public String getIdentifier() {
return identifier;
}
/**
* @return Returns the secret.
*/
public byte[] getSecret() {
return secret;
}
}