comparison app/src/main/java/ch/ethz/ssh2/InteractiveCallback.java @ 438:d29cce60f393

migrate from Eclipse to Android Studio
author Carl Byington <carl@five-ten-sg.com>
date Thu, 03 Dec 2015 11:23:55 -0800
parents src/ch/ethz/ssh2/InteractiveCallback.java@071eccdff8ea
children
comparison
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437:208b31032318 438:d29cce60f393
1 /*
2 * Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
3 * Please refer to the LICENSE.txt for licensing details.
4 */
5 package ch.ethz.ssh2;
6
7 /**
8 * An <code>InteractiveCallback</code> is used to respond to challenges sent
9 * by the server if authentication mode "keyboard-interactive" is selected.
10 *
11 * @see Connection#authenticateWithKeyboardInteractive(String,
12 * String[], InteractiveCallback)
13 *
14 * @author Christian Plattner
15 * @version 2.50, 03/15/10
16 */
17
18 public interface InteractiveCallback {
19 /**
20 * This callback interface is used during a "keyboard-interactive"
21 * authentication. Every time the server sends a set of challenges (however,
22 * most often just one challenge at a time), this callback function will be
23 * called to give your application a chance to talk to the user and to
24 * determine the response(s).
25 * <p>
26 * Some copy-paste information from the standard: a command line interface
27 * (CLI) client SHOULD print the name and instruction (if non-empty), adding
28 * newlines. Then for each prompt in turn, the client SHOULD display the
29 * prompt and read the user input. The name and instruction fields MAY be
30 * empty strings, the client MUST be prepared to handle this correctly. The
31 * prompt field(s) MUST NOT be empty strings.
32 * <p>
33 * Please refer to draft-ietf-secsh-auth-kbdinteract-XX.txt for the details.
34 * <p>
35 * Note: clients SHOULD use control character filtering as discussed in
36 * RFC4251 to avoid attacks by including
37 * terminal control characters in the fields to be displayed.
38 *
39 * @param name
40 * the name String sent by the server.
41 * @param instruction
42 * the instruction String sent by the server.
43 * @param numPrompts
44 * number of prompts - may be zero (in this case, you should just
45 * return a String array of length zero).
46 * @param prompt
47 * an array (length <code>numPrompts</code>) of Strings
48 * @param echo
49 * an array (length <code>numPrompts</code>) of booleans. For
50 * each prompt, the corresponding echo field indicates whether or
51 * not the user input should be echoed as characters are typed.
52 * @return an array of reponses - the array size must match the parameter
53 * <code>numPrompts</code>.
54 */
55 public String[] replyToChallenge(String name, String instruction, int numPrompts, String[] prompt, boolean[] echo)
56 throws Exception;
57 }