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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "remoting/jingle_glue/iq_request.h"
#include "base/logging.h"
#include "base/message_loop.h"
#include "base/scoped_ptr.h"
#include "remoting/jingle_glue/jingle_client.h"
#include "third_party/libjingle/source/talk/xmpp/constants.h"
#include "third_party/libjingle/source/talk/xmpp/xmppengine.h"
namespace remoting {
IqRequest::IqRequest(JingleClient* jingle_client)
: jingle_client_(jingle_client),
cookie_(NULL) {
DCHECK(jingle_client_ != NULL);
DCHECK(MessageLoop::current() == jingle_client_->message_loop());
}
IqRequest::~IqRequest() {
DCHECK(MessageLoop::current() == jingle_client_->message_loop());
Unregister();
}
void IqRequest::SendIq(const std::string& type,
const std::string& addressee,
buzz::XmlElement* iq_body) {
DCHECK(MessageLoop::current() == jingle_client_->message_loop());
// Unregister the handler if it is already registered.
Unregister();
DCHECK_GT(type.length(), 0U);
DCHECK_GT(addressee.length(), 0U);
buzz::XmppClient* xmpp_client = jingle_client_->xmpp_client();
DCHECK(xmpp_client); // Expect that connection is active.
scoped_ptr<buzz::XmlElement> stanza(MakeIqStanza(type, addressee, iq_body,
xmpp_client->NextId()));
xmpp_client->engine()->SendIq(stanza.get(), this, &cookie_);
}
// static
buzz::XmlElement* IqRequest::MakeIqStanza(const std::string& type,
const std::string& addressee,
buzz::XmlElement* iq_body,
const std::string& id) {
buzz::XmlElement* stanza = new buzz::XmlElement(buzz::QN_IQ);
stanza->AddAttr(buzz::QN_TYPE, type);
stanza->AddAttr(buzz::QN_TO, addressee);
stanza->AddAttr(buzz::QN_ID, id);
stanza->AddElement(iq_body);
return stanza;
}
void IqRequest::Unregister() {
if (cookie_) {
buzz::XmppClient* xmpp_client = jingle_client_->xmpp_client();
// No need to unregister the handler if the client has been destroyed.
if (xmpp_client) {
xmpp_client->engine()->RemoveIqHandler(cookie_, NULL);
}
cookie_ = NULL;
}
}
void IqRequest::IqResponse(buzz::XmppIqCookie cookie,
const buzz::XmlElement* stanza) {
if (callback_.get() != NULL) {
callback_->Run(stanza);
}
}
} // namespace remoting
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