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// Copyright (c) 2012 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.
//
// This file implements the Windows service controlling Me2Me host processes
// running within user sessions.
#include "remoting/host/desktop_process_main.h"
#include "base/at_exit.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/command_line.h"
#include "base/file_path.h"
#include "base/memory/scoped_ptr.h"
#include "base/message_loop.h"
#include "base/run_loop.h"
#include "base/scoped_native_library.h"
#include "base/stringprintf.h"
#include "base/utf_string_conversions.h"
#include "base/win/windows_version.h"
#include "remoting/base/auto_thread_task_runner.h"
#include "remoting/base/breakpad.h"
#include "remoting/host/basic_desktop_environment.h"
#include "remoting/host/desktop_process.h"
#include "remoting/host/host_exit_codes.h"
#include "remoting/host/logging.h"
#include "remoting/host/usage_stats_consent.h"
#include "remoting/host/win/session_desktop_environment.h"
#if defined(OS_MACOSX)
#include "base/mac/scoped_nsautorelease_pool.h"
#endif // defined(OS_MACOSX)
#if defined(OS_WIN)
#include <commctrl.h>
#endif // defined(OS_WIN)
namespace {
// The command line switch specifying the name of the daemon IPC endpoint.
const char kDaemonIpcSwitchName[] = "daemon-pipe";
// "--help" or "--?" prints the usage message.
const char kHelpSwitchName[] = "help";
const char kQuestionSwitchName[] = "?";
const char kUsageMessage[] =
"\n"
"Usage: %s [options]\n"
"\n"
"Options:\n"
" --help, --? - Print this message.\n";
void Usage(const base::FilePath& program_name) {
std::string display_name = UTF16ToUTF8(program_name.LossyDisplayName());
LOG(INFO) << StringPrintf(kUsageMessage, display_name.c_str());
}
} // namespace
namespace remoting {
int DesktopProcessMain(int argc, char** argv) {
#if defined(OS_MACOSX)
// Needed so we don't leak objects when threads are created.
base::mac::ScopedNSAutoreleasePool pool;
#endif
CommandLine::Init(argc, argv);
// Initialize Breakpad as early as possible. On Mac the command-line needs to
// be initialized first, so that the preference for crash-reporting can be
// looked up in the config file.
#if defined(OFFICIAL_BUILD) && (defined(MAC_BREAKPAD) || defined(OS_WIN))
if (IsUsageStatsAllowed()) {
InitializeCrashReporting();
}
#endif // defined(OFFICIAL_BUILD) && (defined(MAC_BREAKPAD) || defined(OS_WIN))
// This object instance is required by Chrome code (for example,
// LazyInstance, MessageLoop).
base::AtExitManager exit_manager;
InitHostLogging();
#if defined(OS_WIN)
// Register and initialize common controls.
INITCOMMONCONTROLSEX info;
info.dwSize = sizeof(info);
info.dwICC = ICC_STANDARD_CLASSES;
InitCommonControlsEx(&info);
// Mark the process as DPI-aware, so Windows won't scale coordinates in APIs.
// N.B. This API exists on Vista and above.
if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
FilePath path(base::GetNativeLibraryName(UTF8ToUTF16("user32")));
base::ScopedNativeLibrary user32(path);
CHECK(user32.is_valid());
typedef BOOL (WINAPI * SetProcessDPIAwareFn)();
SetProcessDPIAwareFn set_process_dpi_aware =
static_cast<SetProcessDPIAwareFn>(
user32.GetFunctionPointer("SetProcessDPIAware"));
set_process_dpi_aware();
}
#endif // defined(OS_WIN)
const CommandLine* command_line = CommandLine::ForCurrentProcess();
if (command_line->HasSwitch(kHelpSwitchName) ||
command_line->HasSwitch(kQuestionSwitchName)) {
Usage(command_line->GetProgram());
return kSuccessExitCode;
}
std::string channel_name =
command_line->GetSwitchValueASCII(kDaemonIpcSwitchName);
if (channel_name.empty()) {
Usage(command_line->GetProgram());
return kUsageExitCode;
}
MessageLoop message_loop(MessageLoop::TYPE_UI);
base::RunLoop run_loop;
scoped_refptr<AutoThreadTaskRunner> ui_task_runner =
new AutoThreadTaskRunner(message_loop.message_loop_proxy(),
run_loop.QuitClosure());
DesktopProcess desktop_process(ui_task_runner, channel_name);
// Create a platform-dependent environment factory.
scoped_ptr<DesktopEnvironmentFactory> desktop_environment_factory;
#if defined(OS_WIN)
desktop_environment_factory.reset(
new SessionDesktopEnvironmentFactory(
base::Bind(&DesktopProcess::InjectSas,
desktop_process.AsWeakPtr())));
#else // !defined(OS_WIN)
desktop_environment_factory.reset(
new BasicDesktopEnvironmentFactory(true));
#endif // !defined(OS_WIN)
if (!desktop_process.Start(desktop_environment_factory.Pass()))
return kInitializationFailed;
// Run the UI message loop.
ui_task_runner = NULL;
run_loop.Run();
return kSuccessExitCode;
}
} // namespace remoting
#if !defined(OS_WIN)
int main(int argc, char** argv) {
return remoting::DesktopProcessMain(argc, argv);
}
#endif // !defined(OS_WIN)
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