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/**
* 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.
*
* Foobar 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 Foobar. If not, see <https://www.gnu.org/licenses/>.
*
* The initial version of the source code is inherited from gpg4usb-team.
* Their source code version also complies with GNU General Public License.
*
* The source code version of this software was modified and released
* by Saturneric<[email protected]> starting on May 12, 2021.
*
*/
#include "gpg/function/GpgKeyImportExporter.h"
#include "GpgConstants.h"
/**
* Import key pair
* @param inBuffer input byte array
* @return Import information
*/
GpgFrontend::GpgImportInformation GpgFrontend::GpgKeyImportExporter::ImportKey(
StdBypeArrayPtr in_buffer) {
if (in_buffer->empty()) return {};
GpgData data_in(in_buffer->data(), in_buffer->size());
auto err = check_gpg_error(gpgme_op_import(ctx, data_in));
if (gpgme_err_code(err) != GPG_ERR_NO_ERROR) return {};
gpgme_import_result_t result;
result = gpgme_op_import_result(ctx);
gpgme_import_status_t status = result->imports;
auto import_info = std::make_unique<GpgImportInformation>(result);
while (status != nullptr) {
GpgImportedKey key;
key.import_status = static_cast<int>(status->status);
key.fpr = status->fpr;
import_info->importedKeys.emplace_back(key);
status = status->next;
}
return *import_info;
}
/**
* Export Key
* @param uid_list key ids
* @param out_buffer output byte array
* @return if success
*/
bool GpgFrontend::GpgKeyImportExporter::ExportKeys(KeyIdArgsListPtr& uid_list,
ByteArrayPtr& out_buffer,
bool secret) const {
if (uid_list->empty()) return false;
std::stringstream ss;
int _mode = 0;
if (secret) _mode |= GPGME_EXPORT_MODE_SECRET;
// Alleviate another crash problem caused by an unknown array out-of-bounds
// access
auto all_success = true;
for (size_t i = 0; i < uid_list->size(); i++) {
GpgData data_out;
auto err = gpgme_op_export(ctx, (*uid_list)[i].c_str(), _mode, data_out);
if (gpgme_err_code(err) != GPG_ERR_NO_ERROR) all_success = false;
DLOG(INFO) << "exportKeys read_bytes"
<< gpgme_data_seek(data_out, 0, SEEK_END);
auto temp_out_buffer = data_out.Read2Buffer();
ss << *temp_out_buffer << std::endl;
}
out_buffer = std::make_unique<ByteArray>(ss.str());
return all_success;
}
/**
* Export keys
* @param keys keys used
* @param outBuffer output byte array
* @return if success
*/
bool GpgFrontend::GpgKeyImportExporter::ExportKeys(const KeyArgsList& keys,
ByteArrayPtr& out_buffer,
bool secret) const {
KeyIdArgsListPtr key_ids = std::make_unique<std::vector<std::string>>();
for (const auto& key : keys) key_ids->push_back(key.id());
return ExportKeys(key_ids, out_buffer, secret);
}
/**
* Export the secret key of a key pair(including subkeys)
* @param key target key pair
* @param outBuffer output byte array
* @return if successful
*/
bool GpgFrontend::GpgKeyImportExporter::ExportSecretKey(
const GpgKey& key, ByteArrayPtr& out_buffer) const {
DLOG(INFO) << "Export Secret Key" << key.id().c_str();
gpgme_key_t target_key[2] = {gpgme_key_t(key), nullptr};
GpgData data_out;
// export private key to outBuffer
gpgme_error_t err =
gpgme_op_export_keys(ctx, target_key, GPGME_EXPORT_MODE_SECRET, data_out);
auto temp_out_buffer = data_out.Read2Buffer();
std::swap(out_buffer, temp_out_buffer);
return check_gpg_error_2_err_code(err) == GPG_ERR_NO_ERROR;
}
bool GpgFrontend::GpgKeyImportExporter::ExportKey(
const GpgFrontend::GpgKey& key,
GpgFrontend::ByteArrayPtr& out_buffer) const {
GpgData data_out;
auto err = gpgme_op_export(ctx, key.id().c_str(), 0, data_out);
DLOG(INFO) << "exportKeys read_bytes"
<< gpgme_data_seek(data_out, 0, SEEK_END);
auto temp_out_buffer = data_out.Read2Buffer();
std::swap(out_buffer, temp_out_buffer);
return check_gpg_error_2_err_code(err) == GPG_ERR_NO_ERROR;
}
bool GpgFrontend::GpgKeyImportExporter::ExportKeyOpenSSH(
const GpgFrontend::GpgKey& key,
GpgFrontend::ByteArrayPtr& out_buffer) const {
GpgData data_out;
auto err =
gpgme_op_export(ctx, key.id().c_str(), GPGME_EXPORT_MODE_SSH, data_out);
DLOG(INFO) << "read_bytes" << gpgme_data_seek(data_out, 0, SEEK_END);
auto temp_out_buffer = data_out.Read2Buffer();
std::swap(out_buffer, temp_out_buffer);
return check_gpg_error_2_err_code(err) == GPG_ERR_NO_ERROR;
}
bool GpgFrontend::GpgKeyImportExporter::ExportSecretKeyShortest(
const GpgFrontend::GpgKey& key,
GpgFrontend::ByteArrayPtr& out_buffer) const {
GpgData data_out;
auto err = gpgme_op_export(ctx, key.id().c_str(), GPGME_EXPORT_MODE_MINIMAL,
data_out);
DLOG(INFO) << "read_bytes" << gpgme_data_seek(data_out, 0, SEEK_END);
auto temp_out_buffer = data_out.Read2Buffer();
std::swap(out_buffer, temp_out_buffer);
return check_gpg_error_2_err_code(err) == GPG_ERR_NO_ERROR;
}
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