code: /**
   * 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.ws.security.policy.interceptors;
  
  import java.util.Arrays;
  import java.util.Map;
  import java.util.logging.Logger;
  
  import org.apache.cxf.binding.soap.Soap11;
  import org.apache.cxf.binding.soap.SoapMessage;
  import org.apache.cxf.common.logging.LogUtils;
  import org.apache.cxf.message.Message;
  import org.apache.cxf.ws.policy.AbstractPolicyInterceptorProvider;
  import org.apache.cxf.ws.policy.AssertionInfoMap;
  import org.apache.cxf.ws.policy.PolicyBuilder;
  import org.apache.cxf.ws.security.SecurityConstants;
  import org.apache.cxf.ws.security.policy.SP11Constants;
  import org.apache.cxf.ws.security.policy.SP12Constants;
  import org.apache.cxf.ws.security.policy.SPConstants.SupportTokenType;
  import org.apache.cxf.ws.security.policy.model.AlgorithmSuite;
  import org.apache.cxf.ws.security.policy.model.SecureConversationToken;
  import org.apache.cxf.ws.security.policy.model.SupportingToken;
  import org.apache.cxf.ws.security.trust.STSClient;
  import org.apache.neethi.All;
  import org.apache.neethi.ExactlyOne;
  import org.apache.neethi.Policy;
  
  /**
   * 
   */
  public class SecureConversationTokenInterceptorProvider extends AbstractPolicyInterceptorProvider {
      static final Logger LOG = LogUtils.getL7dLogger(SecureConversationTokenInterceptorProvider.class);
  
      private static final long serialVersionUID = 8739057200687855383L;
  
  
      public SecureConversationTokenInterceptorProvider() {
          super(Arrays.asList(SP11Constants.SECURE_CONVERSATION_TOKEN,
                              SP12Constants.SECURE_CONVERSATION_TOKEN));
          this.getOutInterceptors().add(new SecureConversationOutInterceptor());
          this.getOutFaultInterceptors().add(new SecureConversationOutInterceptor());
          this.getInInterceptors().add(new SecureConversationInInterceptor());
          this.getInFaultInterceptors().add(new SecureConversationInInterceptor());
      }
      
      static String setupClient(STSClient client,
                              SoapMessage message,
                              AssertionInfoMap aim,
                              SecureConversationToken itok,
                              boolean endorse) {
          client.setTrust(NegotiationUtils.getTrust10(aim));
          client.setTrust(NegotiationUtils.getTrust13(aim));
          Policy pol = itok.getBootstrapPolicy();
          Policy p = new Policy();
          ExactlyOne ea = new ExactlyOne();
          p.addPolicyComponent(ea);
          All all = new All();
          all.addPolicyComponent(NegotiationUtils.getAddressingPolicy(aim, false));
          ea.addPolicyComponent(all);
          
          if (endorse) {
              SupportingToken st = new SupportingToken(SupportTokenType.SUPPORTING_TOKEN_ENDORSING,
                                                       SP12Constants.INSTANCE,
                                                       message.getExchange()
                                                           .getBus().getExtension(PolicyBuilder.class));
              st.addToken(itok);
              all.addPolicyComponent(st);
          }
          pol = p.merge(pol);
          
          client.setPolicy(pol);
          client.setSoap11(message.getVersion() == Soap11.getInstance());
          client.setSecureConv(true);
          String s = message
              .getContextualProperty(Message.ENDPOINT_ADDRESS).toString();
          client.setLocation(s);
          AlgorithmSuite suite = NegotiationUtils.getAlgorithmSuite(aim);
          if (suite != null) {
              client.setAlgorithmSuite(suite);
              int x = suite.getMaximumSymmetricKeyLength();
              if (x < 256) {
                  client.setKeySize(x);
              }
          }
          Map<String, Object> ctx = client.getRequestContext();
          mapSecurityProps(message, ctx);
          return s;
      }
      
      private static void mapSecurityProps(Message message, Map<String, Object> ctx) {
          for (String s : SecurityConstants.ALL_PROPERTIES) {
              Object v = message.getContextualProperty(s + ".sct");
              if (v != null) {
                  ctx.put(s, v);
              }
          }
      }
      
  }
  