1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements. See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership. The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License. You may obtain a copy of the License at
9    *
10   * http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied. See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.ws.security.common;
21  
22  import org.apache.ws.security.WSPasswordCallback;
23  
24  import javax.security.auth.callback.Callback;
25  import javax.security.auth.callback.CallbackHandler;
26  import javax.security.auth.callback.UnsupportedCallbackException;
27  import java.io.IOException;
28  
29  /**
30   * A Callback Handler implementation for the case of processing a Username Token with an
31   * encoded password.
32   */
33  public class EncodedPasswordCallbackHandler implements CallbackHandler {
34      
35      public void handle(Callback[] callbacks)
36          throws IOException, UnsupportedCallbackException {
37          for (int i = 0; i < callbacks.length; i++) {
38              if (callbacks[i] instanceof WSPasswordCallback) {
39                  WSPasswordCallback pc = (WSPasswordCallback) callbacks[i];
40                  if (pc.getUsage() == WSPasswordCallback.USERNAME_TOKEN) {
41                      if ("wernerd".equals(pc.getIdentifier())) {
42                          // Base64 encoded SHA-1 hash of "verySecret"
43                          pc.setPassword("hGqoUreBgahTJblQ3DbJIkE6uNs=");
44                      } else if ("bob".equals(pc.getIdentifier())) {
45                          // Base64 encoded SHA-1 hash of "security"
46                          pc.setPassword("jux7xGGAjguKKHg9C+waOiLrCCE=");
47                      }
48                  }
49              } else {
50                  throw new UnsupportedCallbackException(callbacks[i], "Unrecognized Callback");
51              }
52          }
53      }
54  }