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1   /*
2    * MIT License
3    *
4    * Copyright (c) 2010-2024 The Waffle Project Contributors: https://github.com/Waffle/waffle/graphs/contributors
5    *
6    * Permission is hereby granted, free of charge, to any person obtaining a copy
7    * of this software and associated documentation files (the "Software"), to deal
8    * in the Software without restriction, including without limitation the rights
9    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10   * copies of the Software, and to permit persons to whom the Software is
11   * furnished to do so, subject to the following conditions:
12   *
13   * The above copyright notice and this permission notice shall be included in all
14   * copies or substantial portions of the Software.
15   *
16   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22   * SOFTWARE.
23   */
24  package waffle.jaas;
25  
26  import java.io.IOException;
27  
28  import javax.security.auth.callback.Callback;
29  import javax.security.auth.callback.CallbackHandler;
30  import javax.security.auth.callback.NameCallback;
31  import javax.security.auth.callback.PasswordCallback;
32  import javax.security.auth.callback.UnsupportedCallbackException;
33  
34  /**
35   * The Class UsernamePasswordCallbackHandler.
36   */
37  class UsernamePasswordCallbackHandler implements CallbackHandler {
38  
39      /** The username. */
40      private final String username;
41  
42      /** The password. */
43      private final String password;
44  
45      /**
46       * Instantiates a new username password callback handler.
47       *
48       * @param newUsername
49       *            the new username
50       * @param newPassword
51       *            the new password
52       */
53      public UsernamePasswordCallbackHandler(final String newUsername, final String newPassword) {
54          this.username = newUsername;
55          this.password = newPassword;
56      }
57  
58      @Override
59      public void handle(final Callback[] cb) throws IOException, UnsupportedCallbackException {
60          for (final Callback cb1 : cb) {
61              if (cb1 instanceof NameCallback) {
62                  final NameCallback nc = (NameCallback) cb1;
63                  nc.setName(this.username);
64              } else if (cb1 instanceof PasswordCallback) {
65                  final PasswordCallback pc = (PasswordCallback) cb1;
66                  pc.setPassword(this.password.toCharArray());
67              } else {
68                  throw new UnsupportedCallbackException(cb1, "UsernamePasswordCallbackHandler");
69              }
70          }
71      }
72  }