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/*
* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Affero General Public License as published by the
* Free Software Foundation; either version 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ACORE_SECRETMGR_H__
#define __ACORE_SECRETMGR_H__
#include "BigNumber.h"
#include "Log.h"
#include "Optional.h"
#include <array>
#include <mutex>
#include <string>
enum Secrets : uint32
{
SECRET_TOTP_MASTER_KEY = 0,
// only add new indices right above this line
NUM_SECRETS
};
class AC_SHARED_API SecretMgr
{
private:
SecretMgr() = default;
~SecretMgr() = default;
public:
SecretMgr(SecretMgr const&) = delete;
static SecretMgr* instance();
struct Secret
{
public:
explicit operator bool() const { return (state == PRESENT); }
BigNumber const& operator*() const { return value; }
BigNumber const* operator->() const { return &value; }
[[nodiscard]] bool IsAvailable() const { return (state != NOT_LOADED_YET) && (state != LOAD_FAILED); }
private:
std::mutex lock;
enum { NOT_LOADED_YET, LOAD_FAILED, NOT_PRESENT, PRESENT } state = NOT_LOADED_YET;
BigNumber value;
friend class SecretMgr;
};
void Initialize();
Secret const& GetSecret(Secrets i);
private:
void AttemptLoad(Secrets i, LogLevel errorLevel, std::unique_lock<std::mutex> const&);
[[nodiscard]] Optional<std::string> AttemptTransition(Secrets i, Optional<BigNumber> const& newSecret, Optional<BigNumber> const& oldSecret, bool hadOldSecret) const;
std::array<Secret, NUM_SECRETS> _secrets;
};
#define sSecretMgr SecretMgr::instance()
#endif
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