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#include "talk/xmpp/constants.h"
29#include "talk/xmpp/discoitemsquerytask.h"
30#include "talk/xmpp/xmpptask.h"
31#include "webrtc/base/scoped_ptr.h"
32
33namespace buzz {
34
35DiscoItemsQueryTask::DiscoItemsQueryTask(XmppTaskParentInterface* parent,
36                                         const Jid& to,
37                                         const std::string& node)
38    : IqTask(parent, STR_GET, to, MakeRequest(node)) {
39}
40
41XmlElement* DiscoItemsQueryTask::MakeRequest(const std::string& node) {
42  XmlElement* element = new XmlElement(QN_DISCO_ITEMS_QUERY, true);
43  if (!node.empty()) {
44    element->AddAttr(QN_NODE, node);
45  }
46  return element;
47}
48
49void DiscoItemsQueryTask::HandleResult(const XmlElement* stanza) {
50  const XmlElement* query = stanza->FirstNamed(QN_DISCO_ITEMS_QUERY);
51  if (query) {
52    std::vector<DiscoItem> items;
53    for (const buzz::XmlChild* child = query->FirstChild(); child;
54         child = child->NextChild()) {
55      DiscoItem item;
56      const buzz::XmlElement* child_element = child->AsElement();
57      if (ParseItem(child_element, &item)) {
58        items.push_back(item);
59      }
60    }
61    SignalResult(items);
62  } else {
63    SignalError(this, NULL);
64  }
65}
66
67bool DiscoItemsQueryTask::ParseItem(const XmlElement* element,
68                                    DiscoItem* item) {
69  if (element->HasAttr(QN_JID)) {
70    return false;
71  }
72
73  item->jid = element->Attr(QN_JID);
74  item->name = element->Attr(QN_NAME);
75  item->node = element->Attr(QN_NODE);
76  return true;
77}
78
79}  // namespace buzz
80