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/examples/call/discoitemsquerytask.h"
29 #include "talk/base/scoped_ptr.h"
30 #include "talk/xmpp/constants.h"
31
32
33 namespace buzz {
34
35 namespace {
36 const int kDiscoItemsTimeout = 60;
37 } // namespace
38
DiscoItemsQueryTask(Task * parent,const std::string node,const Jid & to)39 DiscoItemsQueryTask::DiscoItemsQueryTask(Task* parent,
40 const std::string node,
41 const Jid& to)
42 : XmppTask(parent, XmppEngine::HL_SINGLE), node_(node) {
43 set_timeout_seconds(kDiscoItemsTimeout);
44 to_ = to;
45 }
46
ProcessStart()47 int DiscoItemsQueryTask::ProcessStart() {
48 talk_base::scoped_ptr<XmlElement> get(MakeIq(STR_GET, to_, task_id()));
49
50 XmlElement* element = new XmlElement(QN_DISCO_ITEMS_QUERY, true);
51 element->AddAttr(QN_NODE, node_);
52
53 get->AddElement(element);
54
55 if (SendStanza(get.get()) != XMPP_RETURN_OK) {
56 SignalDiscoItemsError(to_, NULL);
57 return STATE_ERROR;
58 }
59
60 return STATE_RESPONSE;
61 }
62
ProcessResponse()63 int DiscoItemsQueryTask::ProcessResponse() {
64 const XmlElement* stanza = NextStanza();
65 if (stanza == NULL)
66 return STATE_BLOCKED;
67
68 bool success = false;
69 if (stanza->Attr(QN_TYPE) != STR_ERROR) {
70 const XmlElement* query = stanza->FirstNamed(QN_DISCO_ITEMS_QUERY);
71 if (query) {
72 SignalGotDiscoItems(to_, query);
73 success = true;
74 }
75 }
76
77 if (!success) {
78 SignalDiscoItemsError(to_, stanza->FirstNamed(QN_ERROR));
79 }
80
81 return STATE_DONE;
82 }
83
OnTimeout()84 int DiscoItemsQueryTask::OnTimeout() {
85 SignalDiscoItemsError(to_, NULL);
86 return XmppTask::OnTimeout();
87 }
88
HandleStanza(const XmlElement * stanza)89 bool DiscoItemsQueryTask::HandleStanza(const XmlElement* stanza) {
90 if (!MatchResponseIq(stanza, to_, task_id()))
91 return false;
92 QueueStanza(stanza);
93 return true;
94
95 }
96
97 }
98