1 /*
2 * Copyright (C) 2009, Google Inc.
3 * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
4 * and other copyright owners as documented in the project's IP log.
5 *
6 * This program and the accompanying materials are made available
7 * under the terms of the Eclipse Distribution License v1.0 which
8 * accompanies this distribution, is reproduced below, and is
9 * available at http://www.eclipse.org/org/documents/edl-v10.php
10 *
11 * All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
15 * conditions are met:
16 *
17 * - Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials provided
23 * with the distribution.
24 *
25 * - Neither the name of the Eclipse Foundation, Inc. nor the
26 * names of its contributors may be used to endorse or promote
27 * products derived from this software without specific prior
28 * written permission.
29 *
30 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
31 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
32 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
33 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
34 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
35 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
36 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
37 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
38 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
39 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
41 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
42 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
43 */
44
45 package org.eclipse.jgit.console;
46
47 import java.io.Console;
48 import java.net.Authenticator;
49 import java.net.PasswordAuthentication;
50 import java.text.MessageFormat;
51
52 import org.eclipse.jgit.pgm.internal.CLIText;
53 import org.eclipse.jgit.util.CachedAuthenticator;
54
55 /**
56 * Basic network prompt for username/password when using the console.
57 *
58 * @since 4.0
59 */
60 public class ConsoleAuthenticator extends CachedAuthenticator {
61 /**
62 * Install this authenticator implementation into the JVM.
63 */
64 public static void install() {
65 final ConsoleAuthenticatornticator.html#ConsoleAuthenticator">ConsoleAuthenticator c = new ConsoleAuthenticator();
66 if (c.cons == null)
67 throw new NoClassDefFoundError(
68 CLIText.get().noSystemConsoleAvailable);
69 Authenticator.setDefault(c);
70 }
71
72 private final Console cons = System.console();
73
74 /** {@inheritDoc} */
75 @Override
76 protected PasswordAuthentication promptPasswordAuthentication() {
77 final String realm = formatRealm();
78 String username = cons.readLine(MessageFormat.format(
79 CLIText.get().usernameFor + " ", realm)); //$NON-NLS-1$
80 if (username == null || username.isEmpty()) {
81 return null;
82 }
83 char[] password = cons.readPassword(CLIText.get().password + " "); //$NON-NLS-1$
84 if (password == null) {
85 password = new char[0];
86 }
87 return new PasswordAuthentication(username, password);
88 }
89
90 private String formatRealm() {
91 final StringBuilder realm = new StringBuilder();
92 if (getRequestorType() == RequestorType.PROXY) {
93 realm.append(getRequestorType());
94 realm.append(" "); //$NON-NLS-1$
95 realm.append(getRequestingHost());
96 if (getRequestingPort() > 0) {
97 realm.append(":"); //$NON-NLS-1$
98 realm.append(getRequestingPort());
99 }
100 } else {
101 realm.append(getRequestingURL());
102 }
103 return realm.toString();
104 }
105 }