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/*
* Copyright (c) 2023, Fabian Dellwing <fabian@dellwing.net>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "CertificateStoreWidget.h"
#include <AK/String.h>
#include <Applications/CertificateSettings/CertificateStoreWidgetGML.h>
#include <LibCrypto/ASN1/PEM.h>
#include <LibFileSystem/FileSystem.h>
#include <LibFileSystemAccessClient/Client.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/SortingProxyModel.h>
namespace CertificateSettings {
NonnullRefPtr<CertificateStoreModel> CertificateStoreModel::create()
{
return adopt_ref(*new CertificateStoreModel);
}
void CertificateStoreProxyModel::sort(int column, GUI::SortOrder sort_order)
{
SortingProxyModel::sort(column, sort_order);
m_parent_table_view->set_column_width(CertificateStoreModel::Column::IssuedTo, 150);
m_parent_table_view->set_column_width(CertificateStoreModel::Column::IssuedBy, 150);
}
ErrorOr<void> CertificateStoreModel::load()
{
m_certificates = TRY(DefaultRootCACertificates::load_certificates());
return {};
}
String CertificateStoreModel::column_name(int column) const
{
switch (column) {
case Column::IssuedTo:
return "Issued To"_string.release_value_but_fixme_should_propagate_errors();
case Column::IssuedBy:
return "Issued By"_string.release_value_but_fixme_should_propagate_errors();
case Column::Expire:
return "Expiration Date"_string.release_value_but_fixme_should_propagate_errors();
default:
VERIFY_NOT_REACHED();
}
}
GUI::Variant CertificateStoreModel::data(GUI::ModelIndex const& index, GUI::ModelRole role) const
{
if (role != GUI::ModelRole::Display)
return {};
if (m_certificates.is_empty())
return {};
auto cert = m_certificates.at(index.row());
switch (index.column()) {
case Column::IssuedTo: {
auto issued_to = cert.subject.common_name();
if (issued_to.is_empty()) {
issued_to = cert.subject.organizational_unit();
}
return issued_to;
}
case Column::IssuedBy: {
auto issued_by = cert.issuer.common_name();
if (issued_by.is_empty()) {
issued_by = cert.issuer.organizational_unit();
}
return issued_by;
}
case Column::Expire:
return cert.validity.not_after.to_deprecated_string("%Y-%m-%d"sv);
default:
VERIFY_NOT_REACHED();
}
return {};
}
ErrorOr<size_t> CertificateStoreModel::add(Vector<Certificate> const& certificates)
{
auto size = m_certificates.size();
TRY(m_certificates.try_extend(certificates));
return m_certificates.size() - size;
}
ErrorOr<void> CertificateStoreWidget::import_pem()
{
auto fsac_result = FileSystemAccessClient::Client::the().open_file(window(), "Choose PEM to import...");
if (fsac_result.is_error())
return {};
auto fsac_file = fsac_result.release_value();
auto filename = fsac_file.filename();
if (!(filename.ends_with_bytes(".pem"sv) || filename.ends_with_bytes(".crt"sv)))
return Error::from_string_view("File is not a .pem or .crt file."sv);
auto data = TRY(fsac_file.release_stream()->read_until_eof());
auto count = TRY(m_root_ca_model->add(TRY(DefaultRootCACertificates::parse_pem_root_certificate_authorities(data))));
if (count == 0) {
return Error::from_string_view("No valid CA found to import."sv);
}
auto cert_file = TRY(Core::File::open(TRY(String::formatted("{}/.config/certs.pem", Core::StandardPaths::home_directory())), Core::File::OpenMode::Write | Core::File::OpenMode::Append));
TRY(cert_file->write_until_depleted(data.bytes()));
cert_file->close();
m_root_ca_model->invalidate();
m_root_ca_tableview->set_column_width(CertificateStoreModel::Column::IssuedTo, 150);
m_root_ca_tableview->set_column_width(CertificateStoreModel::Column::IssuedBy, 150);
GUI::MessageBox::show(window(), TRY(String::formatted("Successfully imported {} CAs.", count)), "Success"sv);
return {};
}
Certificate CertificateStoreModel::get(int index)
{
return m_certificates.at(index);
}
ErrorOr<void> CertificateStoreWidget::export_pem()
{
auto index = m_root_ca_tableview->selection().first();
auto real_index = m_root_ca_proxy_model->map_to_source(index);
auto cert = m_root_ca_model->get(real_index.row());
String filename = cert.subject.common_name();
if (filename.is_empty()) {
filename = cert.subject.organizational_unit();
}
filename = TRY(filename.replace(" "sv, "_"sv, ReplaceMode::All));
auto file = FileSystemAccessClient::Client::the().save_file(window(), filename.to_deprecated_string(), "pem"sv);
if (file.is_error())
return {};
auto data = TRY(Crypto::encode_pem(cert.original_asn1));
TRY(file.release_value().release_stream()->write_until_depleted(data));
return {};
}
ErrorOr<NonnullRefPtr<CertificateStoreWidget>> CertificateStoreWidget::try_create()
{
auto widget = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) CertificateStoreWidget()));
TRY(widget->initialize());
return widget;
}
ErrorOr<void> CertificateStoreWidget::initialize()
{
TRY(load_from_gml(certificate_store_widget_gml));
m_root_ca_tableview = find_descendant_of_type_named<GUI::TableView>("root_ca_tableview");
m_root_ca_tableview->set_highlight_selected_rows(true);
m_root_ca_tableview->set_alternating_row_colors(false);
m_root_ca_model = CertificateStoreModel::create();
m_root_ca_proxy_model = TRY(CertificateStoreProxyModel::create(*m_root_ca_model, *m_root_ca_tableview));
m_root_ca_proxy_model->set_sort_role(GUI::ModelRole::Display);
TRY(m_root_ca_model->load());
m_root_ca_tableview->set_model(m_root_ca_proxy_model);
m_root_ca_tableview->set_column_width(CertificateStoreModel::Column::IssuedTo, 150);
m_root_ca_tableview->set_column_width(CertificateStoreModel::Column::IssuedBy, 150);
m_root_ca_tableview->on_selection_change = [&]() {
m_export_ca_button->set_enabled(m_root_ca_tableview->selection().size() == 1);
};
m_import_ca_button = find_descendant_of_type_named<GUI::Button>("import_button");
m_import_ca_button->on_click = [&](auto) {
auto import_result = import_pem();
if (import_result.is_error()) {
GUI::MessageBox::show_error(window(), DeprecatedString::formatted("{}", import_result.release_error()));
}
};
m_export_ca_button = find_descendant_of_type_named<GUI::Button>("export_button");
m_export_ca_button->on_click = [&](auto) {
auto export_result = export_pem();
if (export_result.is_error()) {
GUI::MessageBox::show_error(window(), DeprecatedString::formatted("{}", export_result.release_error()));
}
};
return {};
}
}
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