1 /*
2 * Copyright 2005-2009 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package sun.net.www.protocol.http;
27 import java.io.IOException;
28 import java.net.Authenticator;
29 import java.net.PasswordAuthentication;
30 import java.util.Arrays;
31 import javax.security.auth.callback.Callback;
32 import javax.security.auth.callback.CallbackHandler;
33 import javax.security.auth.callback.NameCallback;
34 import javax.security.auth.callback.PasswordCallback;
35 import javax.security.auth.callback.UnsupportedCallbackException;
36
37 /**
38 * @since 1.6
39 * Special callback handler used in JGSS for the HttpCaller.
40 */
41 public class NegotiateCallbackHandler implements CallbackHandler {
42
43 private String username;
44 private char[] password;
45
46 private final HttpCallerInfo hci;
47
48 public NegotiateCallbackHandler(HttpCallerInfo hci) {
49 this.hci = hci;
50 }
51
52 public void handle(Callback[] callbacks) throws
53 UnsupportedCallbackException, IOException {
54 for (int i=0; i<callbacks.length; i++) {
55 Callback callBack = callbacks[i];
56
57 if (callBack instanceof NameCallback) {
58 if (username == null) {
59 PasswordAuthentication passAuth =
60 Authenticator.requestPasswordAuthentication(
61 hci.host, hci.addr, hci.port, hci.protocol,
62 hci.prompt, hci.scheme, hci.url, hci.authType);
63 username = passAuth.getUserName();
64 password = passAuth.getPassword();
65 }
66 NameCallback nameCallback =
67 (NameCallback)callBack;
68 nameCallback.setName(username);
69
70 } else if (callBack instanceof PasswordCallback) {
71 PasswordCallback passwordCallback =
72 (PasswordCallback)callBack;
73 if (password == null) {
74 PasswordAuthentication passAuth =
75 Authenticator.requestPasswordAuthentication(
76 hci.host, hci.addr, hci.port, hci.protocol,
77 hci.prompt, hci.scheme, hci.url, hci.authType);
78 username = passAuth.getUserName();
79 password = passAuth.getPassword();
80 }
81 passwordCallback.setPassword(password);
82 Arrays.fill(password, ' ');
83 } else {
84 throw new UnsupportedCallbackException(callBack,
85 "Call back not supported");
86 }
87 }
88 }
89 }
--- EOF ---