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/**
* Copyright (C) 2021-2024 Saturneric <[email protected]>
*
* This file is part of GpgFrontend.
*
* GpgFrontend is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GpgFrontend 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GpgFrontend. If not, see <https://www.gnu.org/licenses/>.
*
* The initial version of the source code is inherited from
* the gpg4usb project, which is under GPL-3.0-or-later.
*
* All the source code of GpgFrontend was modified and released by
* Saturneric <[email protected]> starting on May 12, 2021.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#pragma once
#include "core/GpgFrontendCore.h"
#include "core/function/basic/GpgFunctionObject.h"
#include "core/function/gpg/GpgContext.h"
#include "core/typedef/GpgTypedef.h"
namespace GpgFrontend {
class GpgAutomatonHandler
: public SingletonFunctionObject<GpgAutomatonHandler> {
public:
using Command = QString;
using AutomatonState = enum {
AS_START,
AS_SELECT,
AS_COMMAND,
AS_VALUE,
AS_REASON_CODE,
AS_REASON_TEXT,
AS_REALLY_ULTIMATE,
AS_SAVE,
AS_ERROR,
AS_QUIT,
};
struct AutomatonHandelStruct;
using AutomatonActionHandler =
std::function<Command(AutomatonHandelStruct&, AutomatonState)>;
using AutomatonNextStateHandler =
std::function<AutomatonState(AutomatonState, QString, QString)>;
struct AutomatonHandelStruct {
explicit AutomatonHandelStruct(QString key_fpr);
void SetStatus(AutomatonState next_state);
auto CurrentStatus() -> AutomatonState;
void SetHandler(AutomatonNextStateHandler next_state_handler,
AutomatonActionHandler action_handler);
auto NextState(QString gpg_status, QString args) -> AutomatonState;
auto Action() -> Command;
void SetSuccess(bool success);
[[nodiscard]] auto Success() const -> bool;
auto KeyFpr() -> QString;
private:
AutomatonState current_state_ = AS_START;
AutomatonNextStateHandler next_state_handler_;
AutomatonActionHandler action_handler_;
bool success_ = false;
QString key_fpr_;
};
/**
* @brief Construct a new Gpg Key Manager object
*
* @param channel
*/
explicit GpgAutomatonHandler(
int channel = SingletonFunctionObject::GetDefaultChannel());
/**
* @brief
*
* @param key
* @param next_state_handler
* @param action_handler
* @param flags
* @return true
* @return false
*/
auto DoInteract(const GpgKey& key,
AutomatonNextStateHandler next_state_handler,
AutomatonActionHandler action_handler, int flags = 0) -> bool;
/**
* @brief
*
* @param next_state_handler
* @param action_handler
* @return true
* @return false
*/
auto DoCardInteract(AutomatonNextStateHandler next_state_handler,
AutomatonActionHandler action_handler) -> bool;
private:
GpgContext& ctx_ =
GpgContext::GetInstance(SingletonFunctionObject::GetChannel()); ///<
/**
* @brief
*
* @param handle
* @param status
* @param args
* @param fd
* @return gpgme_error_t
*/
static auto interator_cb_func(void* handle, const char* status,
const char* args, int fd) -> gpgme_error_t;
};
using AutomatonNextStateHandler =
GpgAutomatonHandler::AutomatonNextStateHandler;
using AutomatonState = GpgAutomatonHandler::AutomatonState;
using AutomatonActionHandler = GpgAutomatonHandler::AutomatonActionHandler;
using AutomatonHandelStruct = GpgAutomatonHandler::AutomatonHandelStruct;
} // namespace GpgFrontend
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