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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.
#include "remoting/host/curtain_mode.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/single_thread_task_runner.h"
#include "base/win/windows_version.h"
#include "remoting/host/client_session_control.h"
namespace remoting {
class CurtainModeWin : public CurtainMode {
public:
CurtainModeWin();
// Overriden from CurtainMode.
bool Activate() override;
private:
DISALLOW_COPY_AND_ASSIGN(CurtainModeWin);
};
CurtainModeWin::CurtainModeWin() {
}
bool CurtainModeWin::Activate() {
if (base::win::GetVersion() < base::win::VERSION_VISTA) {
LOG(ERROR) << "Curtain mode is not supported on Windows XP/2003";
return false;
}
DWORD session_id;
if (!ProcessIdToSessionId(GetCurrentProcessId(), &session_id)) {
PLOG(ERROR) << "Failed to map the current PID to session ID";
return false;
}
// The current session is curtained if it is not attached to the local
// console.
return WTSGetActiveConsoleSessionId() != session_id;
}
// static
scoped_ptr<CurtainMode> CurtainMode::Create(
scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner,
base::WeakPtr<ClientSessionControl> client_session_control) {
// |client_session_control| is not used because the client session is
// disconnected as soon as the session is re-attached to the local console.
// See RdpDesktopSession for more details.
return make_scoped_ptr(new CurtainModeWin());
}
} // namespace remoting
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