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_JID_H_
29#define TALK_XMPP_JID_H_
30
31#include <string>
32#include "webrtc/libjingle/xmllite/xmlconstants.h"
33#include "webrtc/base/basictypes.h"
34
35namespace buzz {
36
37// The Jid class encapsulates and provides parsing help for Jids. A Jid
38// consists of three parts: the node, the domain and the resource, e.g.:
39//
40// node@domain/resource
41//
42// The node and resource are both optional. A valid jid is defined to have
43// a domain. A bare jid is defined to not have a resource and a full jid
44// *does* have a resource.
45class Jid {
46public:
47  explicit Jid();
48  explicit Jid(const std::string& jid_string);
49  explicit Jid(const std::string& node_name,
50               const std::string& domain_name,
51               const std::string& resource_name);
52  ~Jid();
53
54  const std::string & node() const { return node_name_; }
55  const std::string & domain() const { return domain_name_;  }
56  const std::string & resource() const { return resource_name_; }
57
58  std::string Str() const;
59  Jid BareJid() const;
60
61  bool IsEmpty() const;
62  bool IsValid() const;
63  bool IsBare() const;
64  bool IsFull() const;
65
66  bool BareEquals(const Jid& other) const;
67  void CopyFrom(const Jid& jid);
68  bool operator==(const Jid& other) const;
69  bool operator!=(const Jid& other) const { return !operator==(other); }
70
71  bool operator<(const Jid& other) const { return Compare(other) < 0; };
72  bool operator>(const Jid& other) const { return Compare(other) > 0; };
73
74  int Compare(const Jid & other) const;
75
76private:
77  void ValidateOrReset();
78
79  static std::string PrepNode(const std::string& node, bool* valid);
80  static char PrepNodeAscii(char ch, bool* valid);
81  static std::string PrepResource(const std::string& start, bool* valid);
82  static char PrepResourceAscii(char ch, bool* valid);
83  static std::string PrepDomain(const std::string& domain, bool* valid);
84  static void PrepDomain(const std::string& domain,
85                         std::string* buf, bool* valid);
86  static void PrepDomainLabel(
87      std::string::const_iterator start, std::string::const_iterator end,
88      std::string* buf, bool* valid);
89  static char PrepDomainLabelAscii(char ch, bool *valid);
90
91  std::string node_name_;
92  std::string domain_name_;
93  std::string resource_name_;
94};
95
96}
97
98#endif  // TALK_XMPP_JID_H_
99