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// Copyright (c) 2011 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/xmpp_signal_strategy.h"
#include "base/logging.h"
#include "jingle/notifier/base/gaia_token_pre_xmpp_auth.h"
#include "remoting/jingle_glue/jingle_thread.h"
#include "remoting/jingle_glue/xmpp_iq_request.h"
#include "remoting/jingle_glue/xmpp_socket_adapter.h"
#include "third_party/libjingle/source/talk/base/asyncsocket.h"
#include "third_party/libjingle/source/talk/p2p/client/sessionmanagertask.h"
#include "third_party/libjingle/source/talk/p2p/base/sessionmanager.h"
#include "third_party/libjingle/source/talk/xmpp/prexmppauth.h"
#include "third_party/libjingle/source/talk/xmpp/saslcookiemechanism.h"
namespace remoting {
XmppSignalStrategy::XmppSignalStrategy(JingleThread* jingle_thread,
const std::string& username,
const std::string& auth_token,
const std::string& auth_token_service)
: thread_(jingle_thread),
listener_(NULL),
username_(username),
auth_token_(auth_token),
auth_token_service_(auth_token_service),
xmpp_client_(NULL),
observer_(NULL) {
}
XmppSignalStrategy::~XmppSignalStrategy() {
if (xmpp_client_)
xmpp_client_->engine()->RemoveStanzaHandler(this);
DCHECK(listener_ == NULL);
}
void XmppSignalStrategy::Init(StatusObserver* observer) {
observer_ = observer;
buzz::Jid login_jid(username_);
buzz::XmppClientSettings settings;
settings.set_user(login_jid.node());
settings.set_host(login_jid.domain());
settings.set_resource("chromoting");
settings.set_use_tls(true);
settings.set_token_service(auth_token_service_);
settings.set_auth_cookie(auth_token_);
settings.set_server(talk_base::SocketAddress("talk.google.com", 5222));
buzz::AsyncSocket* socket = new XmppSocketAdapter(settings, false);
xmpp_client_ = new buzz::XmppClient(thread_->task_pump());
xmpp_client_->Connect(settings, "", socket, CreatePreXmppAuth(settings));
xmpp_client_->SignalStateChange.connect(
this, &XmppSignalStrategy::OnConnectionStateChanged);
xmpp_client_->engine()->AddStanzaHandler(this, buzz::XmppEngine::HL_PEEK);
xmpp_client_->Start();
}
void XmppSignalStrategy::SetListener(Listener* listener) {
// Don't overwrite an listener without explicitly going
// through "NULL" first.
DCHECK(listener_ == NULL || listener == NULL);
listener_ = listener;
}
void XmppSignalStrategy::SendStanza(buzz::XmlElement* stanza) {
xmpp_client_->SendStanza(stanza);
}
void XmppSignalStrategy::StartSession(
cricket::SessionManager* session_manager) {
cricket::SessionManagerTask* receiver =
new cricket::SessionManagerTask(xmpp_client_, session_manager);
receiver->EnableOutgoingMessages();
receiver->Start();
}
void XmppSignalStrategy::EndSession() {
if (xmpp_client_) {
xmpp_client_->engine()->RemoveStanzaHandler(this);
xmpp_client_->Disconnect();
// Client is deleted by TaskRunner.
xmpp_client_ = NULL;
}
}
IqRequest* XmppSignalStrategy::CreateIqRequest() {
return new XmppIqRequest(thread_->message_loop(), xmpp_client_);
}
bool XmppSignalStrategy::HandleStanza(const buzz::XmlElement* stanza) {
if (listener_)
listener_->OnIncomingStanza(stanza);
return false;
}
void XmppSignalStrategy::OnConnectionStateChanged(
buzz::XmppEngine::State state) {
switch (state) {
case buzz::XmppEngine::STATE_START:
observer_->OnStateChange(StatusObserver::START);
break;
case buzz::XmppEngine::STATE_OPENING:
observer_->OnStateChange(StatusObserver::CONNECTING);
break;
case buzz::XmppEngine::STATE_OPEN:
observer_->OnJidChange(xmpp_client_->jid().Str());
observer_->OnStateChange(StatusObserver::CONNECTED);
break;
case buzz::XmppEngine::STATE_CLOSED:
observer_->OnStateChange(StatusObserver::CLOSED);
// Client is destroyed by the TaskRunner after the client is
// closed. Reset the pointer so we don't try to use it later.
xmpp_client_ = NULL;
break;
default:
NOTREACHED();
break;
}
}
// static
buzz::PreXmppAuth* XmppSignalStrategy::CreatePreXmppAuth(
const buzz::XmppClientSettings& settings) {
buzz::Jid jid(settings.user(), settings.host(), buzz::STR_EMPTY);
std::string mechanism = notifier::GaiaTokenPreXmppAuth::kDefaultAuthMechanism;
if (settings.token_service() == "oauth2") {
mechanism = "X-OAUTH2";
}
return new notifier::GaiaTokenPreXmppAuth(
jid.Str(),
settings.auth_cookie(),
settings.token_service(),
mechanism);
}
} // namespace remoting
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