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/**
* Copyright (C) 2021 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 "GpgKeyImportExporter.h"
#include "core/GpgModel.h"
#include "core/model/GpgImportInformation.h"
#include "core/utils/AsyncUtils.h"
#include "core/utils/GpgUtils.h"
namespace GpgFrontend {
GpgKeyImportExporter::GpgKeyImportExporter(int channel)
: SingletonFunctionObject<GpgKeyImportExporter>(channel),
ctx_(GpgContext::GetInstance(SingletonFunctionObject::GetChannel())) {}
/**
* Import key pair
* @param inBuffer input byte array
* @return Import information
*/
auto GpgKeyImportExporter::ImportKey(const GFBuffer& in_buffer)
-> std::shared_ptr<GpgImportInformation> {
if (in_buffer.Empty()) return {};
GpgData data_in(in_buffer);
auto err = CheckGpgError(gpgme_op_import(ctx_.DefaultContext(), data_in));
if (gpgme_err_code(err) != GPG_ERR_NO_ERROR) return {};
gpgme_import_result_t result;
result = gpgme_op_import_result(ctx_.DefaultContext());
gpgme_import_status_t status = result->imports;
auto import_info = SecureCreateSharedObject<GpgImportInformation>(result);
while (status != nullptr) {
GpgImportInformation::GpgImportedKey key;
key.import_status = static_cast<int>(status->status);
key.fpr = status->fpr;
import_info->imported_keys.emplace_back(key);
status = status->next;
}
return import_info;
}
/**
* Export keys
* @param keys keys used
* @param outBuffer output byte array
* @return if success
*/
auto GpgKeyImportExporter::ExportKey(const GpgKey& key, bool secret, bool ascii,
bool shortest, bool ssh_mode) const
-> std::tuple<GpgError, GFBuffer> {
if (!key.IsGood()) return {GPG_ERR_CANCELED, {}};
int mode = 0;
if (secret) mode |= GPGME_EXPORT_MODE_SECRET;
if (shortest) mode |= GPGME_EXPORT_MODE_MINIMAL;
if (ssh_mode) mode |= GPGME_EXPORT_MODE_SSH;
std::vector<gpgme_key_t> keys_array;
// Last entry data_in array has to be nullptr
keys_array.emplace_back(key);
keys_array.emplace_back(nullptr);
GpgData data_out;
auto* ctx = ascii ? ctx_.DefaultContext() : ctx_.BinaryContext();
auto err = gpgme_op_export_keys(ctx, keys_array.data(), mode, data_out);
if (gpgme_err_code(err) != GPG_ERR_NO_ERROR) return {};
GF_CORE_LOG_DEBUG(
"operation of exporting a key finished, ascii: {}, read_bytes: {}", ascii,
gpgme_data_seek(data_out, 0, SEEK_END));
return {err, data_out.Read2GFBuffer()};
}
/**
* Export keys
* @param keys keys used
* @param outBuffer output byte array
* @return if success
*/
void GpgKeyImportExporter::ExportKeys(const KeyArgsList& keys, bool secret,
bool ascii, bool shortest, bool ssh_mode,
const GpgOperationCallback& cb) const {
RunGpgOperaAsync(
[=](const DataObjectPtr& data_object) -> GpgError {
if (keys.empty()) return GPG_ERR_CANCELED;
int mode = 0;
if (secret) mode |= GPGME_EXPORT_MODE_SECRET;
if (shortest) mode |= GPGME_EXPORT_MODE_MINIMAL;
if (ssh_mode) mode |= GPGME_EXPORT_MODE_SSH;
std::vector<gpgme_key_t> keys_array(keys.begin(), keys.end());
// Last entry data_in array has to be nullptr
keys_array.emplace_back(nullptr);
GpgData data_out;
auto* ctx = ascii ? ctx_.DefaultContext() : ctx_.BinaryContext();
auto err = gpgme_op_export_keys(ctx, keys_array.data(), mode, data_out);
if (gpgme_err_code(err) != GPG_ERR_NO_ERROR) return {};
GF_CORE_LOG_DEBUG(
"operation of exporting keys finished, ascii: {}, read_bytes: {}",
ascii, gpgme_data_seek(data_out, 0, SEEK_END));
data_object->Swap({data_out.Read2GFBuffer()});
return err;
},
cb, "gpgme_op_export_keys", "2.1.0");
}
} // namespace GpgFrontend
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