/*
* 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.tuscany.sca.binding.ws.axis2.policy.authentication.basic;
import java.util.ArrayList;
import java.util.List;
import javax.security.auth.Subject;
import javax.xml.namespace.QName;
import org.apache.axis2.client.OperationClient;
import org.apache.axis2.transport.http.HTTPConstants;
import org.apache.axis2.transport.http.HttpTransportProperties;
import org.apache.axis2.transport.http.HttpTransportProperties.Authenticator;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.invocation.Phase;
import org.apache.tuscany.sca.invocation.PhasedInterceptor;
import org.apache.tuscany.sca.policy.PolicyExpression;
import org.apache.tuscany.sca.policy.PolicySet;
import org.apache.tuscany.sca.policy.authentication.basic.BasicAuthenticationPolicy;
import org.apache.tuscany.sca.policy.authentication.basic.BasicAuthenticationPrincipal;
import org.apache.tuscany.sca.policy.security.SecurityUtil;
import org.oasisopen.sca.ServiceRuntimeException;
/**
*
* @version $Rev: 909490 $ $Date: 2010-02-12 16:25:54 +0000 (Fri, 12 Feb 2010) $
*/
public class BasicAuthenticationReferencePolicyInterceptor implements PhasedInterceptor {
private static final String SCA10_TUSCANY_NS = "http://tuscany.apache.org/xmlns/sca/1.1";
public static final QName policySetQName = new QName(SCA10_TUSCANY_NS, "wsBasicAuthentication");
private Invoker next;
private PolicySet policySet = null;
private String context;
private BasicAuthenticationPolicy policy;
public BasicAuthenticationReferencePolicyInterceptor(String context, PolicySet policySet) {
super();
this.policySet = policySet;
this.context = context;
init();
}
private void init() {
// TODO - how to get the appropriate expression out of the
// policy set. Need WS Policy help here
if (policySet != null) {
for (PolicyExpression policyExpression : policySet.getPolicies()){
if (policyExpression.getPolicy() instanceof BasicAuthenticationPolicy){
policy = (BasicAuthenticationPolicy)policyExpression.getPolicy();
break;
}
}
}
}
public Message invoke(Message msg) {
OperationClient operationClient = msg.getBindingContext();
String username = null;
String password = null;
// get the security context
Subject subject = SecurityUtil.getSubject(msg);
BasicAuthenticationPrincipal principal = SecurityUtil.getPrincipal(subject,
BasicAuthenticationPrincipal.class);
// could use the security principal to look up basic auth credentials
if ( principal != null ) {
username = ((BasicAuthenticationPrincipal)principal).getName();
password = ((BasicAuthenticationPrincipal)principal).getPassword();
} else if (policy != null ){
username = policy.getUserName();
password = policy.getPassword();
principal = new BasicAuthenticationPrincipal(username,
password);
subject.getPrincipals().add(principal);
}
if (username == null || password == null ){
throw new ServiceRuntimeException("Basic authentication username and/or password is null");
}
HttpTransportProperties.Authenticator authenticator = new HttpTransportProperties.Authenticator();
List<String> auth = new ArrayList<String>();
auth.add(Authenticator.BASIC);
authenticator.setAuthSchemes(auth);
authenticator.setPreemptiveAuthentication(true);
authenticator.setUsername(username);
authenticator.setPassword(password);
operationClient.getOptions().setProperty(HTTPConstants.AUTHENTICATE,
authenticator);
return getNext().invoke(msg);
}
public Invoker getNext() {
return next;
}
public void setNext(Invoker next) {
this.next = next;
}
public String getPhase() {
return Phase.REFERENCE_BINDING_POLICY;
}
}