1 /*
2 * libjingle
3 * Copyright 2011, 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/iqtask.h"
29
30 #include "talk/xmpp/constants.h"
31 #include "talk/xmpp/xmppclient.h"
32
33 namespace buzz {
34
35 static const int kDefaultIqTimeoutSecs = 15;
36
IqTask(XmppTaskParentInterface * parent,const std::string & verb,const buzz::Jid & to,buzz::XmlElement * el)37 IqTask::IqTask(XmppTaskParentInterface* parent,
38 const std::string& verb,
39 const buzz::Jid& to,
40 buzz::XmlElement* el)
41 : buzz::XmppTask(parent, buzz::XmppEngine::HL_SINGLE),
42 to_(to),
43 stanza_(MakeIq(verb, to_, task_id())) {
44 stanza_->AddElement(el);
45 set_timeout_seconds(kDefaultIqTimeoutSecs);
46 }
47
ProcessStart()48 int IqTask::ProcessStart() {
49 buzz::XmppReturnStatus ret = SendStanza(stanza_.get());
50 // TODO: HandleError(NULL) if SendStanza fails?
51 return (ret == buzz::XMPP_RETURN_OK) ? STATE_RESPONSE : STATE_ERROR;
52 }
53
HandleStanza(const buzz::XmlElement * stanza)54 bool IqTask::HandleStanza(const buzz::XmlElement* stanza) {
55 if (!MatchResponseIq(stanza, to_, task_id()))
56 return false;
57
58 if (stanza->Attr(buzz::QN_TYPE) != buzz::STR_RESULT &&
59 stanza->Attr(buzz::QN_TYPE) != buzz::STR_ERROR) {
60 return false;
61 }
62
63 QueueStanza(stanza);
64 return true;
65 }
66
ProcessResponse()67 int IqTask::ProcessResponse() {
68 const buzz::XmlElement* stanza = NextStanza();
69 if (stanza == NULL)
70 return STATE_BLOCKED;
71
72 bool success = (stanza->Attr(buzz::QN_TYPE) == buzz::STR_RESULT);
73 if (success) {
74 HandleResult(stanza);
75 } else {
76 SignalError(this, stanza->FirstNamed(QN_ERROR));
77 }
78 return STATE_DONE;
79 }
80
OnTimeout()81 int IqTask::OnTimeout() {
82 SignalError(this, NULL);
83 return XmppTask::OnTimeout();
84 }
85
86 } // namespace buzz
87