1/*
2 * libjingle
3 * Copyright 2004--2005, Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef TALK_XMPP_SASLHANDLER_H_
29#define TALK_XMPP_SASLHANDLER_H_
30
31#include <string>
32#include <vector>
33
34namespace buzz {
35
36class XmlElement;
37class SaslMechanism;
38
39// Creates mechanisms to deal with a given mechanism
40class SaslHandler {
41
42public:
43
44  // Intended to be subclassed
45  virtual ~SaslHandler() {}
46
47  // Should pick the best method according to this handler
48  // returns the empty string if none are suitable
49  virtual std::string ChooseBestSaslMechanism(const std::vector<std::string> & mechanisms, bool encrypted) = 0;
50
51  // Creates a SaslMechanism for the given mechanism name (you own it
52  // once you get it).
53  // If not handled, return NULL.
54  virtual SaslMechanism * CreateSaslMechanism(const std::string & mechanism) = 0;
55};
56
57}
58
59#endif  // TALK_XMPP_SASLHANDLER_H_
60