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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// This file implements the Windows service controlling Me2Me host processes
// running within user sessions.
#include <memory>
#include <utility>
#include "base/command_line.h"
#include "base/memory/scoped_refptr.h"
#include "base/message_loop/message_pump_type.h"
#include "base/run_loop.h"
#include "base/task/single_thread_task_executor.h"
#include "base/task/thread_pool/thread_pool_instance.h"
#include "build/build_config.h"
#include "mojo/core/embedder/scoped_ipc_support.h"
#include "mojo/public/cpp/platform/named_platform_channel.h"
#include "mojo/public/cpp/platform/platform_channel.h"
#include "mojo/public/cpp/platform/platform_channel_endpoint.h"
#include "mojo/public/cpp/system/invitation.h"
#include "mojo/public/cpp/system/message_pipe.h"
#include "remoting/base/auto_thread.h"
#include "remoting/base/auto_thread_task_runner.h"
#include "remoting/host/base/host_exit_codes.h"
#include "remoting/host/base/switches.h"
#include "remoting/host/desktop_process.h"
#include "remoting/host/me2me_desktop_environment.h"
#if BUILDFLAG(IS_WIN)
#include "base/functional/bind.h"
#include "remoting/host/win/session_interaction_strategy.h"
#else
#include "remoting/host/create_desktop_interaction_strategy_factory.h"
#include "remoting/host/host_main.h"
#endif
namespace remoting {
int DesktopProcessMain() {
const base::CommandLine* command_line =
base::CommandLine::ForCurrentProcess();
base::ThreadPoolInstance::CreateAndStartWithDefaultParams("Me2Me");
base::SingleThreadTaskExecutor main_task_executor(base::MessagePumpType::UI);
base::RunLoop run_loop;
scoped_refptr<AutoThreadTaskRunner> ui_task_runner = new AutoThreadTaskRunner(
main_task_executor.task_runner(), run_loop.QuitClosure());
// Launch the video capture thread.
scoped_refptr<AutoThreadTaskRunner> video_capture_task_runner =
AutoThread::Create("Video capture thread", ui_task_runner);
// Launch the input thread.
scoped_refptr<AutoThreadTaskRunner> input_task_runner =
AutoThread::CreateWithType("Input thread", ui_task_runner,
base::MessagePumpType::IO);
// Launch the I/O thread.
scoped_refptr<AutoThreadTaskRunner> io_task_runner =
AutoThread::CreateWithType("I/O thread", ui_task_runner,
base::MessagePumpType::IO);
mojo::core::ScopedIPCSupport ipc_support(
io_task_runner->task_runner(),
mojo::core::ScopedIPCSupport::ShutdownPolicy::FAST);
mojo::PlatformChannelEndpoint endpoint =
mojo::PlatformChannel::RecoverPassedEndpointFromCommandLine(
*command_line);
if (!endpoint.is_valid()) {
endpoint = mojo::NamedPlatformChannel::ConnectToServer(*command_line);
}
if (!endpoint.is_valid()) {
return kInvalidCommandLineExitCode;
}
auto invitation = mojo::IncomingInvitation::Accept(std::move(endpoint));
mojo::ScopedMessagePipeHandle message_pipe = invitation.ExtractMessagePipe(
command_line->GetSwitchValueASCII(kMojoPipeToken));
DesktopProcess desktop_process(ui_task_runner, input_task_runner,
io_task_runner, std::move(message_pipe));
// Create a platform-dependent environment factory.
#if BUILDFLAG(IS_WIN)
// base::Unretained() is safe here: |desktop_process| outlives run_loop.Run().
auto inject_sas_closure = base::BindRepeating(
&DesktopProcess::InjectSas, base::Unretained(&desktop_process));
auto lock_workstation_closure = base::BindRepeating(
&DesktopProcess::LockWorkstation, base::Unretained(&desktop_process));
auto interaction_strategy_factory =
std::make_unique<SessionInteractionStrategyFactory>(
ui_task_runner, ui_task_runner, video_capture_task_runner,
input_task_runner, std::move(inject_sas_closure),
std::move(lock_workstation_closure));
#else // !BUILDFLAG(IS_WIN)
auto interaction_strategy_factory = CreateDesktopInteractionStrategyFactory(
ui_task_runner, ui_task_runner, video_capture_task_runner,
input_task_runner);
#endif // !BUILDFLAG(IS_WIN)
auto desktop_environment_factory =
std::make_unique<Me2MeDesktopEnvironmentFactory>(
ui_task_runner, ui_task_runner,
std::move(interaction_strategy_factory));
if (!desktop_process.Start(std::move(desktop_environment_factory))) {
return kInitializationFailed;
}
// Run the UI message loop.
ui_task_runner = nullptr;
run_loop.Run();
return kSuccessExitCode;
}
} // namespace remoting
#if !BUILDFLAG(IS_WIN)
int main(int argc, char** argv) {
return remoting::HostMain(argc, argv);
}
#endif // !BUILDFLAG(IS_WIN)
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