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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 "base/callback.h"
#include "base/message_loop.h"
#include "remoting/base/constants.h"
// TODO(hclam): Remove this header once MessageDispatcher is used.
#include "remoting/base/multiple_array_input_stream.h"
#include "remoting/client/client_config.h"
#include "remoting/client/jingle_host_connection.h"
#include "remoting/jingle_glue/jingle_thread.h"
#include "remoting/protocol/jingle_chromotocol_server.h"
#include "remoting/protocol/video_stub.h"
#include "remoting/protocol/util.h"
namespace remoting {
JingleHostConnection::JingleHostConnection(ClientContext* context)
: context_(context),
event_callback_(NULL) {
}
JingleHostConnection::~JingleHostConnection() {
}
void JingleHostConnection::Connect(const ClientConfig& config,
HostEventCallback* event_callback,
VideoStub* video_stub) {
event_callback_ = event_callback;
video_stub_ = video_stub;
// Initialize |jingle_client_|.
jingle_client_ = new JingleClient(context_->jingle_thread());
jingle_client_->Init(config.username, config.auth_token,
kChromotingTokenServiceName, this);
// Save jid of the host. The actual connection is created later after
// |jingle_client_| is connected.
host_jid_ = config.host_jid;
}
void JingleHostConnection::Disconnect() {
if (MessageLoop::current() != message_loop()) {
message_loop()->PostTask(
FROM_HERE, NewRunnableMethod(this,
&JingleHostConnection::Disconnect));
return;
}
control_reader_.Close();
event_writer_.Close();
video_reader_->Close();
if (connection_) {
connection_->Close(
NewRunnableMethod(this, &JingleHostConnection::OnDisconnected));
} else {
OnDisconnected();
}
}
void JingleHostConnection::OnControlMessage(ChromotingHostMessage* msg) {
event_callback_->HandleMessage(this, msg);
}
void JingleHostConnection::InitConnection() {
DCHECK_EQ(message_loop(), MessageLoop::current());
// Initialize |chromotocol_server_|.
JingleChromotocolServer* chromotocol_server =
new JingleChromotocolServer(context_->jingle_thread());
// TODO(ajwong): Make this a command switch when we're more stable.
chromotocol_server->set_allow_local_ips(true);
chromotocol_server->Init(
jingle_client_->GetFullJid(),
jingle_client_->session_manager(),
NewCallback(this, &JingleHostConnection::OnNewChromotocolConnection));
chromotocol_server_ = chromotocol_server;
CandidateChromotocolConfig* candidate_config =
CandidateChromotocolConfig::CreateDefault();
// TODO(sergeyu): Set resolution in the |candidate_config| to the desired
// resolution.
// Initialize |connection_|.
connection_ = chromotocol_server_->Connect(
host_jid_, candidate_config,
NewCallback(this, &JingleHostConnection::OnConnectionStateChange));
}
void JingleHostConnection::OnDisconnected() {
connection_ = NULL;
if (chromotocol_server_) {
chromotocol_server_->Close(
NewRunnableMethod(this, &JingleHostConnection::OnServerClosed));
} else {
OnServerClosed();
}
}
void JingleHostConnection::OnServerClosed() {
chromotocol_server_ = NULL;
if (jingle_client_) {
jingle_client_->Close();
jingle_client_ = NULL;
}
}
void JingleHostConnection::SendEvent(const ChromotingClientMessage& msg) {
// This drops the message if we are not connected yet.
event_writer_.SendMessage(msg);
}
// JingleClient::Callback interface.
void JingleHostConnection::OnStateChange(JingleClient* client,
JingleClient::State state) {
DCHECK_EQ(message_loop(), MessageLoop::current());
DCHECK(client);
DCHECK(event_callback_);
if (state == JingleClient::CONNECTED) {
VLOG(1) << "Connected as: " << client->GetFullJid();
InitConnection();
} else if (state == JingleClient::CLOSED) {
VLOG(1) << "Connection closed.";
event_callback_->OnConnectionClosed(this);
}
}
void JingleHostConnection::OnNewChromotocolConnection(
ChromotocolConnection* connection,
ChromotocolServer::IncomingConnectionResponse* response) {
DCHECK_EQ(message_loop(), MessageLoop::current());
// Client always rejects incoming connections.
*response = ChromotocolServer::DECLINE;
}
void JingleHostConnection::OnConnectionStateChange(
ChromotocolConnection::State state) {
DCHECK_EQ(message_loop(), MessageLoop::current());
DCHECK(event_callback_);
switch (state) {
case ChromotocolConnection::FAILED:
event_callback_->OnConnectionFailed(this);
break;
case ChromotocolConnection::CLOSED:
event_callback_->OnConnectionClosed(this);
break;
case ChromotocolConnection::CONNECTED:
// Initialize reader and writer.
control_reader_.Init<ChromotingHostMessage>(
connection_->control_channel(),
NewCallback(this, &JingleHostConnection::OnControlMessage));
event_writer_.Init(connection_->event_channel());
video_reader_.reset(VideoReader::Create(connection_->config()));
video_reader_->Init(connection_, video_stub_);
event_callback_->OnConnectionOpened(this);
break;
default:
// Ignore the other states by default.
break;
}
}
MessageLoop* JingleHostConnection::message_loop() {
return context_->jingle_thread()->message_loop();
}
} // namespace remoting
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