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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
*
*/
#include "PaperKeyModule.h"
#include <unistd.h>
#include <QtCore>
#include "GFModuleDefine.h"
#include "extract.h"
#include "restore.h"
GF_MODULE_API_DEFINE("com.bktus.gpgfrontend.module.paper_key", "PaperKey",
"1.0.0", "Integrated PaperKey Functions.", "Saturneric")
auto GFRegisterModule() -> int {
LOG_DEBUG("paper key module registering");
return 0;
}
auto GFActiveModule() -> int {
LISTEN("REQUEST_TRANS_KEY_2_PAPER_KEY");
LISTEN("REQUEST_TRANS_PAPER_KEY_2_KEY");
return 0;
}
EXECUTE_MODULE() {
FLOG_DEBUG("paper key module executing, event id: %1", event["event_id"]);
if (event["event_id"] == "REQUEST_TRANS_KEY_2_PAPER_KEY") {
if (event["secret_key"].isEmpty()) CB_ERR(event, -1, "secret key is empty");
QByteArray secret_key_rdata =
QByteArray::fromBase64(event["secret_key"].toLatin1());
QTemporaryFile secret_key_t_file;
if (!secret_key_t_file.open())
CB_ERR(event, -1, "unable to open temporary file");
secret_key_t_file.write(secret_key_rdata);
secret_key_t_file.flush();
secret_key_t_file.reset();
FILE *secret_key_file = fdopen(secret_key_t_file.handle(), "rb");
if (secret_key_file == nullptr)
CB_ERR(event, -1, "unable to convert QTemporaryFile to FILE*");
QTemporaryFile paper_key_t_file;
if (!paper_key_t_file.open())
CB_ERR(event, -1, "unable to open temporary file");
FILE *paper_key_fp = fdopen(dup(paper_key_t_file.handle()), "w");
if (paper_key_fp == nullptr)
CB_ERR(event, -1, "unable to convert QTemporaryFile to FILE*");
auto ret = extract(secret_key_file, paper_key_fp, BASE16);
paper_key_t_file.flush();
paper_key_t_file.reset();
CB(event, GFGetModuleID(),
{
{"ret", QString::number(ret)},
{"paper_key", QString::fromLatin1(paper_key_t_file.readAll())},
});
return ret;
}
if (event["event_id"] == "REQUEST_TRANS_PAPER_KEY_2_KEY") {
if (event["public_key"].isEmpty() || event["paper_key_secrets"].isEmpty())
CB_ERR(event, -1, "public key or paper key secrets is empty");
QByteArray public_key_data =
QByteArray::fromBase64(event["public_key"].toLatin1());
QTemporaryFile public_key_t_file;
if (!public_key_t_file.open())
CB_ERR(event, -1, "unable to open temporary file");
public_key_t_file.write(public_key_data);
public_key_t_file.flush();
public_key_t_file.seek(0);
FILE *pubring = fdopen(public_key_t_file.handle(), "rb");
if (pubring == nullptr)
CB_ERR(event, -1, "unable to convert QTemporaryFile to FILE*");
QByteArray secrets_data =
QByteArray::fromBase64(event["paper_key_secrets"].toLatin1());
QTemporaryFile secrets_data_t_file;
if (!secrets_data_t_file.open())
CB_ERR(event, -1, "unable to open temporary file");
secrets_data_t_file.write(secrets_data);
secrets_data_t_file.flush();
secrets_data_t_file.reset();
FILE *secrets_fp = fdopen(secrets_data_t_file.handle(), "r");
if (secrets_fp == nullptr)
CB_ERR(event, -1, "unable to convert QTemporaryFile to FILE*");
QTemporaryFile secret_key_t_file;
if (!secret_key_t_file.open())
CB_ERR(event, -1, "unable to open temporary file");
FILE *secret_key_fp = fdopen(dup(secret_key_t_file.handle()), "wb");
if (secret_key_fp == nullptr)
CB_ERR(event, -1, "unable to convert QTemporaryFile to FILE*");
auto ret = restore(pubring, secrets_fp, AUTO, secret_key_fp);
secret_key_t_file.reset();
FLOG_DEBUG("secret key temp file size: %1, ret: %2",
secret_key_t_file.size(), ret);
CB(event, GFGetModuleID(),
{
{"ret", QString::number(ret)},
{"secret_key",
QString::fromLocal8Bit(secret_key_t_file.readAll().toBase64())},
});
return ret;
}
CB_SUCC(event);
}
END_EXECUTE_MODULE()
auto GFDeactivateModule() -> int { return 0; }
auto GFUnregisterModule() -> int {
MLogDebug("paper key module unregistering");
return 0;
}
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