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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/ref_counted.h"
#include "net/base/io_buffer.h"
#include "remoting/proto/control.pb.h"
#include "remoting/proto/event.pb.h"
#include "remoting/proto/internal.pb.h"
#include "remoting/protocol/host_message_dispatcher.h"
#include "remoting/protocol/host_stub.h"
#include "remoting/protocol/input_stub.h"
#include "remoting/protocol/message_reader.h"
#include "remoting/protocol/session.h"
namespace remoting {
namespace protocol {
HostMessageDispatcher::HostMessageDispatcher() :
host_stub_(NULL),
input_stub_(NULL) {
}
HostMessageDispatcher::~HostMessageDispatcher() {
}
void HostMessageDispatcher::Initialize(
protocol::Session* session,
HostStub* host_stub, InputStub* input_stub) {
if (!session || !host_stub || !input_stub ||
!session->event_channel() || !session->control_channel()) {
return;
}
control_message_reader_.reset(new ProtobufMessageReader<ControlMessage>());
event_message_reader_.reset(new ProtobufMessageReader<EventMessage>());
host_stub_ = host_stub;
input_stub_ = input_stub;
// Initialize the readers on the sockets provided by channels.
event_message_reader_->Init(
session->event_channel(),
NewCallback(this, &HostMessageDispatcher::OnEventMessageReceived));
control_message_reader_->Init(
session->control_channel(),
NewCallback(this, &HostMessageDispatcher::OnControlMessageReceived));
}
void HostMessageDispatcher::OnControlMessageReceived(
ControlMessage* message, Task* done_task) {
if (!host_stub_->authenticated()) {
// When the client has not authenticated with the host, we restrict the
// control messages that we support.
if (message->has_begin_session_request()) {
host_stub_->BeginSessionRequest(
&message->begin_session_request().credentials(), done_task);
return;
} else {
LOG(WARNING) << "Invalid control message received "
<< "(client not authenticated).";
}
} else {
// TODO(sergeyu): Add message validation.
if (message->has_suggest_resolution()) {
host_stub_->SuggestResolution(&message->suggest_resolution(), done_task);
return;
} else if (message->has_begin_session_request()) {
LOG(WARNING) << "BeginSessionRequest sent after client already "
<< "authorized.";
} else {
LOG(WARNING) << "Invalid control message received.";
}
}
done_task->Run();
delete done_task;
}
void HostMessageDispatcher::OnEventMessageReceived(
EventMessage* message, Task* done_task) {
if (input_stub_->authenticated()) {
// TODO(sergeyu): Add message validation.
if (message->has_key_event()) {
input_stub_->InjectKeyEvent(&message->key_event(), done_task);
} else if (message->has_mouse_event()) {
input_stub_->InjectMouseEvent(&message->mouse_event(), done_task);
} else {
LOG(WARNING) << "Invalid event message received.";
done_task->Run();
delete done_task;
}
}
}
} // namespace protocol
} // namespace remoting
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