subkeyswidget.cpp
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subkeyswidget.cpp
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	/*
	dialogs/subkeyswidget.cpp

	This file is part of Kleopatra, the KDE keymanager
	SPDX-FileCopyrightText: 2016 Klarälvdalens Datakonsult AB
	SPDX-FileCopyrightText: 2017 Bundesamt für Sicherheit in der Informationstechnik
	SPDX-FileContributor: Intevation GmbH
	SPDX-FileCopyrightText: 2022 g10 Code GmbH
	SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>

	SPDX-License-Identifier: GPL-2.0-or-later
	*/

	#include <config-kleopatra.h>

	#include "subkeyswidget.h"

	#include "commands/changeexpirycommand.h"
	#ifdef QGPGME_SUPPORTS_SECRET_SUBKEY_EXPORT
	#include "commands/exportsecretsubkeycommand.h"
	#endif
	#include "commands/keytocardcommand.h"
	#include "commands/importpaperkeycommand.h"
	#include "exportdialog.h"

	#include <Libkleo/Formatting>
	#include <Libkleo/NavigatableTreeWidget>

	#include <KConfigGroup>
	#include <KLocalizedString>
	#include <KSharedConfig>

	#include <QDialogButtonBox>
	#include <QHeaderView>
	#include <QLabel>
	#include <QMenu>
	#include <QPushButton>
	#include <QTreeWidgetItem>
	#include <QVBoxLayout>

	#include <gpgme++/context.h>
	#include <gpgme++/key.h>

	Q_DECLARE_METATYPE(GpgME::Subkey)

	using namespace Kleo;
	using namespace Kleo::Commands;

	class SubKeysWidget::Private
	{
	SubKeysWidget *const q;
	public:
	Private(SubKeysWidget *qq)
	: q{qq}
	, ui{qq}
	{
	ui.subkeysTree->setContextMenuPolicy(Qt::CustomContextMenu);
	connect(ui.subkeysTree, &QAbstractItemView::customContextMenuRequested,
	q, [this](const QPoint &p) { tableContextMenuRequested(p); });
	}

	private:
	void tableContextMenuRequested(const QPoint &p);

	public:
	GpgME::Key key;

	public:
	struct UI {
	QVBoxLayout *mainLayout;
	NavigatableTreeWidget *subkeysTree;

	UI(QWidget *widget)
	{
	mainLayout = new QVBoxLayout{widget};
	mainLayout->setContentsMargins(0, 0, 0, 0);

	auto subkeysTreeLabel = new QLabel{i18nc("@label", "Subkeys:"), widget};
	mainLayout->addWidget(subkeysTreeLabel);

	subkeysTree = new NavigatableTreeWidget{widget};
	subkeysTreeLabel->setBuddy(subkeysTree);
	subkeysTree->setAccessibleName(i18nc("@label", "Subkeys"));
	subkeysTree->setRootIsDecorated(false);
	subkeysTree->setHeaderLabels({
	i18nc("@title:column", "ID"),
	i18nc("@title:column", "Type"),
	i18nc("@title:column", "Valid From"),
	i18nc("@title:column", "Valid Until"),
	i18nc("@title:column", "Status"),
	i18nc("@title:column", "Strength"),
	i18nc("@title:column", "Usage"),
	i18nc("@title:column", "Primary"),
	i18nc("@title:column", "Storage"),
	});
	mainLayout->addWidget(subkeysTree);
	}
	} ui;
	};

	void SubKeysWidget::Private::tableContextMenuRequested(const QPoint &p)
	{
	auto item = ui.subkeysTree->itemAt(p);
	if (!item) {
	return;
	}
	const auto subkey = item->data(0, Qt::UserRole).value<GpgME::Subkey>();

	auto menu = new QMenu(q);
	connect(menu, &QMenu::aboutToHide, menu, &QObject::deleteLater);

	bool hasActions = false;

	if (subkey.parent().hasSecret()) {
	hasActions = true;
	menu->addAction(i18n("Change End of Validity Period..."), q,
	[this, subkey]() {
	auto cmd = new ChangeExpiryCommand(subkey.parent());
	cmd->setSubkey(subkey);
	ui.subkeysTree->setEnabled(false);
	connect(cmd, &ChangeExpiryCommand::finished,
	q, [this]() {
	ui.subkeysTree->setEnabled(true);
	key.update();
	q->setKey(key);
	});
	cmd->setParentWidget(q);
	cmd->start();
	}
	);
	}

	if (subkey.canAuthenticate()) {
	hasActions = true;
	menu->addAction(QIcon::fromTheme(QStringLiteral("view-certificate-export")),
	i18n("Export OpenSSH key"),
	q, [this, subkey]() {
	QScopedPointer<ExportDialog> dlg(new ExportDialog(q));
	dlg->setKey(subkey, static_cast<unsigned int> (GpgME::Context::ExportSSH));
	dlg->exec();
	});
	}

	if (!subkey.isSecret()) {
	hasActions = true;
	menu->addAction(QIcon::fromTheme(QStringLiteral("view-certificate-import")),
	i18n("Restore printed backup"),
	q, [this, subkey] () {
	auto cmd = new ImportPaperKeyCommand(subkey.parent());
	ui.subkeysTree->setEnabled(false);
	connect(cmd, &ImportPaperKeyCommand::finished,
	q, [this]() { ui.subkeysTree->setEnabled(true); });
	cmd->setParentWidget(q);
	cmd->start();
	});
	}

	if (subkey.isSecret()) {
	hasActions = true;
	auto action = menu->addAction(QIcon::fromTheme(QStringLiteral("send-to-symbolic")),
	i18n("Transfer to smartcard"),
	q, [this, subkey]() {
	auto cmd = new KeyToCardCommand(subkey);
	ui.subkeysTree->setEnabled(false);
	connect(cmd, &KeyToCardCommand::finished,
	q, [this]() { ui.subkeysTree->setEnabled(true); });
	cmd->setParentWidget(q);
	cmd->start();
	});
	action->setEnabled(!KeyToCardCommand::getSuitableCards(subkey).empty());
	}

	#ifdef QGPGME_SUPPORTS_SECRET_SUBKEY_EXPORT
	const bool isPrimarySubkey = subkey.keyID() == key.keyID();
	if (subkey.isSecret() && !isPrimarySubkey) {
	hasActions = true;
	menu->addAction(QIcon::fromTheme(QStringLiteral("view-certificate-export")),
	i18n("Export secret subkey"),
	q, [this, subkey]() {
	auto cmd = new ExportSecretSubkeyCommand{{subkey}};
	ui.subkeysTree->setEnabled(false);
	connect(cmd, &ExportSecretSubkeyCommand::finished,
	q, [this]() { ui.subkeysTree->setEnabled(true); });
	cmd->setParentWidget(q);
	cmd->start();
	});
	}
	#endif

	if (hasActions) {
	menu->popup(ui.subkeysTree->viewport()->mapToGlobal(p));
	} else {
	delete menu;
	}
	}

	SubKeysWidget::SubKeysWidget(QWidget *parent)
	: QWidget(parent)
	, d(new Private(this))
	{
	}

	SubKeysWidget::~SubKeysWidget()
	{
	}

	void SubKeysWidget::setKey(const GpgME::Key &key)
	{
	if (key.protocol() != GpgME::OpenPGP) {
	return;
	}
	d->key = key;

	const auto currentItem = d->ui.subkeysTree->currentItem();
	const QByteArray selectedKeyFingerprint = currentItem ?
	QByteArray(currentItem->data(0, Qt::UserRole).value<GpgME::Subkey>().fingerprint()) : QByteArray();
	d->ui.subkeysTree->clear();

	const auto subkeys = key.subkeys();
	for (const auto &subkey : subkeys) {
	auto item = new QTreeWidgetItem;
	item->setData(0, Qt::DisplayRole, Formatting::prettyID(subkey.keyID()));
	item->setData(0, Qt::AccessibleTextRole, Formatting::accessibleHexID(subkey.keyID()));
	item->setData(0, Qt::UserRole, QVariant::fromValue(subkey));
	item->setData(1, Qt::DisplayRole, Kleo::Formatting::type(subkey));
	item->setData(2, Qt::DisplayRole, Kleo::Formatting::creationDateString(subkey));
	item->setData(2, Qt::AccessibleTextRole, Formatting::accessibleCreationDate(subkey));
	item->setData(3, Qt::DisplayRole, Kleo::Formatting::expirationDateString(subkey));
	item->setData(3, Qt::AccessibleTextRole, Formatting::accessibleExpirationDate(subkey));
	item->setData(4, Qt::DisplayRole, Kleo::Formatting::validityShort(subkey));
	switch (subkey.publicKeyAlgorithm()) {
	case GpgME::Subkey::AlgoECDSA:
	case GpgME::Subkey::AlgoEDDSA:
	case GpgME::Subkey::AlgoECDH:
	item->setData(5, Qt::DisplayRole, QString::fromStdString(subkey.algoName()));
	break;
	default:
	item->setData(5, Qt::DisplayRole, QString::number(subkey.length()));
	}
	item->setData(6, Qt::DisplayRole, Kleo::Formatting::usageString(subkey));
	const auto isPrimary = subkey.keyID() == key.keyID();
	item->setData(7, Qt::DisplayRole, isPrimary ? QStringLiteral("✓") : QString());
	item->setData(7, Qt::AccessibleTextRole, isPrimary ? i18nc("yes, is primary key", "yes") : i18nc("no, is not primary key", "no"));
	if (subkey.isCardKey()) {
	if (const char *serialNo = subkey.cardSerialNumber()) {
	item->setData(8, Qt::DisplayRole, i18nc("smart card <serial number>", "smart card %1", QString::fromUtf8(serialNo)));
	} else {
	item->setData(8, Qt::DisplayRole, i18n("smart card"));
	}
	} else if (isPrimary && key.hasSecret() && !subkey.isSecret()) {
	item->setData(8, Qt::DisplayRole, i18nc("key is 'offline key', i.e. secret key is not stored on this computer", "offline"));
	} else if (subkey.isSecret()) {
	item->setData(8, Qt::DisplayRole, i18n("on this computer"));
	} else {
	item->setData(8, Qt::DisplayRole, i18nc("unknown storage location", "unknown"));
	}
	d->ui.subkeysTree->addTopLevelItem(item);
	if (subkey.fingerprint() == selectedKeyFingerprint) {
	d->ui.subkeysTree->setCurrentItem(item);
	}
	}
	if (!key.hasSecret()) {
	// hide information about storage location for keys of other people
	d->ui.subkeysTree->hideColumn(8);
	}
	d->ui.subkeysTree->header()->resizeSections(QHeaderView::ResizeToContents);
	}


	GpgME::Key SubKeysWidget::key() const
	{
	return d->key;
	}



	SubKeysDialog::SubKeysDialog(QWidget *parent)
	: QDialog(parent)
	{
	setWindowTitle(i18nc("@title:window", "Subkeys Details"));
	auto l = new QVBoxLayout(this);
	l->addWidget(new SubKeysWidget(this));

	auto bbox = new QDialogButtonBox(this);
	auto btn = bbox->addButton(QDialogButtonBox::Close);
	connect(btn, &QPushButton::clicked, this, &QDialog::accept);
	l->addWidget(bbox);
	readConfig();
	}

	SubKeysDialog::~SubKeysDialog()
	{
	writeConfig();
	}

	void SubKeysDialog::readConfig()
	{
	KConfigGroup dialog(KSharedConfig::openStateConfig(), "SubKeysDialog");
	const QSize size = dialog.readEntry("Size", QSize(820, 280));
	if (size.isValid()) {
	resize(size);
	}
	}

	void SubKeysDialog::writeConfig()
	{
	KConfigGroup dialog(KSharedConfig::openStateConfig(), "SubKeysDialog");
	dialog.writeEntry("Size", size());
	dialog.sync();
	}

	void SubKeysDialog::setKey(const GpgME::Key &key)
	{
	auto w = findChild<SubKeysWidget*>();
	Q_ASSERT(w);
	w->setKey(key);
	}

	GpgME::Key SubKeysDialog::key() const
	{
	auto w = findChild<SubKeysWidget*>();
	Q_ASSERT(w);
	return w->key();
	}

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