cryptoconfigmodule.cpp
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cryptoconfigmodule.cpp
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	/*
	cryptoconfigmodule.cpp

	This file is part of kgpgcertmanager
	SPDX-FileCopyrightText: 2004 Klarälvdalens Datakonsult AB

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

	#include <config-libkleo.h>

	#include "cryptoconfigmodule.h"

	#include "cryptoconfigentryreaderport_p.h"
	#include "cryptoconfigmodule_p.h"
	#include "directoryserviceswidget.h"
	#include "filenamerequester.h"

	#include <libkleo/compliance.h>
	#include <libkleo/formatting.h>
	#include <libkleo/gnupg.h>
	#include <libkleo/keyserverconfig.h>

	#include <kleo_ui_debug.h>

	#include <KLazyLocalizedString>
	#include <KLineEdit>
	#include <KLocalizedString>
	#include <KMessageBox>
	#include <KSeparator>

	#include <QGpgME/CryptoConfig>

	#include <QCheckBox>
	#include <QComboBox>
	#include <QDialogButtonBox>
	#include <QGridLayout>
	#include <QGroupBox>
	#include <QHBoxLayout>
	#include <QIcon>
	#include <QLabel>
	#include <QLayout>
	#include <QPushButton>
	#include <QRegularExpression>
	#include <QScreen>
	#include <QScrollArea>
	#include <QSpinBox>
	#include <QStyle>
	#include <QVBoxLayout>

	#include <gpgme.h>

	#include <array>
	#include <limits>
	#include <memory>
	#include <set>

	using namespace Kleo;

	inline QIcon loadIcon(const QString &s)
	{
	QString ss = s;
	const static QRegularExpression reg(QRegularExpression(QLatin1StringView("[^a-zA-Z0-9_]")));
	return QIcon::fromTheme(ss.replace(reg, QStringLiteral("-")));
	}

	Kleo::CryptoConfigModule::CryptoConfigModule(QGpgME::CryptoConfig config, QWidget parent)
	: QTabWidget(parent)
	, mConfig(config)
	{
	init();
	}

	void Kleo::CryptoConfigModule::init()
	{
	if (layout()) {
	layout()->setContentsMargins(0, 0, 0, 0);
	}
	setDocumentMode(true);

	QGpgME::CryptoConfig *const config = mConfig;

	const QStringList components = sortComponentList(config->componentList());
	for (QStringList::const_iterator it = components.begin(); it != components.end(); ++it) {
	// qCDebug(KLEO_UI_LOG) <<"Component" << (*it).toLocal8Bit() <<":";
	QGpgME::CryptoConfigComponent comp = config->component(it);
	Q_ASSERT(comp);
	if (comp->groupList().empty()) {
	continue;
	}

	std::unique_ptr<CryptoConfigComponentGUI> compGUI(new CryptoConfigComponentGUI(this, comp));
	compGUI->setObjectName(*it);

	mComponentGUIs.append(compGUI.get());

	auto scrollArea = new QScrollArea(this);
	scrollArea->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred);
	scrollArea->setWidgetResizable(true);

	addTab(scrollArea, comp->description());

	scrollArea->setWidget(compGUI.release());
	}
	if (mComponentGUIs.empty()) {
	const QString msg = i18n(
	"The gpgconf tool used to provide the information "
	"for this dialog does not seem to be installed "
	"properly. It did not return any components. "
	"Try running \"%1\" on the command line for more "
	"information.",
	components.empty() ? QLatin1StringView("gpgconf --list-components") : QLatin1String("gpgconf --list-options gpg"));
	auto layout = new QVBoxLayout;
	setLayout(layout);
	auto label = new QLabel(msg, this);
	label->setWordWrap(true);
	label->setMinimumHeight(fontMetrics().lineSpacing() * 5);
	layout->addWidget(label);
	}
	}

	namespace
	{
	template<typename Iterator>
	QStringList sortConfigEntries(const Iterator orderBegin, const Iterator orderEnd, const QStringList &entries)
	{
	// components sorting algorithm:
	// 1. components with predefined order (provided via orderBegin / orderEnd)
	// 2. other components sorted alphabetically
	QStringList result;
	QStringList others;
	for (auto it = orderBegin; it != orderEnd; ++it) {
	if (entries.contains(*it)) {
	result.append(*it);
	}
	}
	for (const auto &item : entries) {
	if (!result.contains(item)) {
	others.append(item);
	}
	}
	others.sort();
	result.append(others);
	return result;
	}
	} // namespace

	QStringList Kleo::CryptoConfigModule::sortComponentList(const QStringList &components)
	{
	static const std::array<QString, 6> order = {
	QStringLiteral("gpg"),
	QStringLiteral("gpgsm"),
	QStringLiteral("gpg-agent"),
	QStringLiteral("dirmngr"),
	QStringLiteral("pinentry"),
	QStringLiteral("scdaemon"),
	};
	return sortConfigEntries(order.begin(), order.end(), components);
	}

	QStringList Kleo::CryptoConfigModule::sortGroupList(const QString &moduleName, const QStringList &groups)
	{
	if (moduleName == QStringLiteral("gpg")) {
	static const std::array<QString, 4> order = {
	QStringLiteral("Keyserver"),
	QStringLiteral("Configuration"),
	QStringLiteral("Monitor"),
	QStringLiteral("Debug"),
	};
	return sortConfigEntries(order.begin(), order.end(), groups);
	} else if (moduleName == QStringLiteral("gpgsm")) {
	static const std::array<QString, 4> order = {
	QStringLiteral("Security"),
	QStringLiteral("Configuration"),
	QStringLiteral("Monitor"),
	QStringLiteral("Debug"),
	};
	return sortConfigEntries(order.begin(), order.end(), groups);
	} else if (moduleName == QStringLiteral("gpg-agent")) {
	static const std::array<QString, 5> order = {
	QStringLiteral("Security"),
	QStringLiteral("Passphrase policy"),
	QStringLiteral("Configuration"),
	QStringLiteral("Monitor"),
	QStringLiteral("Debug"),
	};
	return sortConfigEntries(order.begin(), order.end(), groups);
	} else if (moduleName == QStringLiteral("dirmngr")) {
	static const std::array<QString, 10> order = {
	QStringLiteral("Keyserver"),
	QStringLiteral("HTTP"),
	QStringLiteral("LDAP"),
	QStringLiteral("OCSP"),
	QStringLiteral("Tor"),
	QStringLiteral("Enforcement"),
	QStringLiteral("Configuration"),
	QStringLiteral("Format"),
	QStringLiteral("Monitor"),
	QStringLiteral("Debug"),
	};
	return sortConfigEntries(order.begin(), order.end(), groups);
	} else if (moduleName == QStringLiteral("scdaemon")) {
	static const std::array<QString, 4> order = {
	QStringLiteral("Monitor"),
	QStringLiteral("Configuration"),
	QStringLiteral("Security"),
	QStringLiteral("Debug"),
	};
	return sortConfigEntries(order.begin(), order.end(), groups);
	} else {
	qCDebug(KLEO_UI_LOG) << "Configuration groups order is not defined for " << moduleName;
	QStringList result(groups);
	result.sort();
	return result;
	}
	}

	bool Kleo::CryptoConfigModule::hasError() const
	{
	return mComponentGUIs.empty();
	}

	void Kleo::CryptoConfigModule::save()
	{
	bool changed = false;
	QList<CryptoConfigComponentGUI *>::Iterator it = mComponentGUIs.begin();
	for (; it != mComponentGUIs.end(); ++it) {
	if ((*it)->save()) {
	changed = true;
	}
	}
	if (changed) {
	mConfig->sync(true /runtime/);
	}
	}

	void Kleo::CryptoConfigModule::reset()
	{
	QList<CryptoConfigComponentGUI *>::Iterator it = mComponentGUIs.begin();
	for (; it != mComponentGUIs.end(); ++it) {
	(*it)->load();
	}
	}

	void Kleo::CryptoConfigModule::defaults()
	{
	QList<CryptoConfigComponentGUI *>::Iterator it = mComponentGUIs.begin();
	for (; it != mComponentGUIs.end(); ++it) {
	(*it)->defaults();
	}
	}

	void Kleo::CryptoConfigModule::cancel()
	{
	mConfig->clear();
	}

	////

	namespace
	{
	bool offerEntryForConfiguration(QGpgME::CryptoConfigEntry *entry)
	{
	static const QRegularExpression entryPathGroupSegmentRegexp{QStringLiteral("/.*/")};

	static std::set<QString> entriesToExclude;
	if (entriesToExclude.empty()) {
	entriesToExclude.insert(QStringLiteral("gpg/keyserver"));
	if (engineIsVersion(2, 3, 5, GpgME::GpgConfEngine)
	\|\| (engineIsVersion(2, 2, 34, GpgME::GpgConfEngine) && !engineIsVersion(2, 3, 0, GpgME::GpgConfEngine))) {
	// exclude for 2.2.{34,...} and 2.3.5+
	entriesToExclude.insert(QStringLiteral("gpgsm/keyserver"));
	}
	}

	const bool de_vs = DeVSCompliance::isActive();
	// Skip "dangerous" expert options if we are running in CO_DE_VS.
	// Otherwise, skip any options beyond "invisible" (== expert + 1) level.
	const auto maxEntryLevel = de_vs ? QGpgME::CryptoConfigEntry::Level_Advanced //
	: QGpgME::CryptoConfigEntry::Level_Expert + 1;
	// we ignore the group when looking up entries to exclude because entries
	// are uniquely identified by their name and their component
	const auto entryId = entry->path().replace(entryPathGroupSegmentRegexp, QLatin1StringView{"/"}).toLower();
	return (entry->level() <= maxEntryLevel) && (entriesToExclude.find(entryId) == entriesToExclude.end());
	}

	auto getGroupEntriesToOfferForConfiguration(QGpgME::CryptoConfigGroup *group)
	{
	std::vector<QGpgME::CryptoConfigEntry *> result;
	const auto entryNames = group->entryList();
	for (const auto &entryName : entryNames) {
	auto *const entry = group->entry(entryName);
	Q_ASSERT(entry);
	if (offerEntryForConfiguration(entry)) {
	result.push_back(entry);
	} else {
	qCDebug(KLEO_UI_LOG) << "entry" << entry->path() << "too advanced or excluded explicitly, skipping";
	}
	}
	return result;
	}
	}

	Kleo::CryptoConfigComponentGUI::CryptoConfigComponentGUI(CryptoConfigModule module, QGpgME::CryptoConfigComponent component, QWidget *parent)
	: QWidget(parent)
	, mComponent(component)
	{
	auto glay = new QGridLayout(this);
	const QStringList groups = module->sortGroupList(mComponent->name(), mComponent->groupList());
	if (groups.size() > 1) {
	glay->setColumnMinimumWidth(0, 30);
	for (QStringList::const_iterator it = groups.begin(), end = groups.end(); it != end; ++it) {
	QGpgME::CryptoConfigGroup group = mComponent->group(it);
	Q_ASSERT(group);
	if (!group) {
	continue;
	}
	auto groupEntries = getGroupEntriesToOfferForConfiguration(group);
	if (groupEntries.size() == 0) {
	// skip groups without entries to be offered in the UI
	continue;
	}
	const QString title = group->description();
	auto hbox = new QHBoxLayout;
	hbox->addWidget(new QLabel{title.isEmpty() ? *it : title, this});
	hbox->addWidget(new KSeparator{Qt::Horizontal, this}, 1);
	const int row = glay->rowCount();
	glay->addLayout(hbox, row, 0, 1, 3);
	mGroupGUIs.append(new CryptoConfigGroupGUI(module, group, groupEntries, glay, this));
	}
	} else if (!groups.empty()) {
	auto *const group = mComponent->group(groups.front());
	auto groupEntries = getGroupEntriesToOfferForConfiguration(group);
	if (groupEntries.size() > 0) {
	mGroupGUIs.append(new CryptoConfigGroupGUI(module, group, groupEntries, glay, this));
	}
	}
	glay->setRowStretch(glay->rowCount(), 1);
	}

	bool Kleo::CryptoConfigComponentGUI::save()
	{
	bool changed = false;
	QList<CryptoConfigGroupGUI *>::Iterator it = mGroupGUIs.begin();
	for (; it != mGroupGUIs.end(); ++it) {
	if ((*it)->save()) {
	changed = true;
	}
	}
	return changed;
	}

	void Kleo::CryptoConfigComponentGUI::load()
	{
	QList<CryptoConfigGroupGUI *>::Iterator it = mGroupGUIs.begin();
	for (; it != mGroupGUIs.end(); ++it) {
	(*it)->load();
	}
	}

	void Kleo::CryptoConfigComponentGUI::defaults()
	{
	QList<CryptoConfigGroupGUI *>::Iterator it = mGroupGUIs.begin();
	for (; it != mGroupGUIs.end(); ++it) {
	(*it)->defaults();
	}
	}

	////

	Kleo::CryptoConfigGroupGUI::CryptoConfigGroupGUI(CryptoConfigModule *module,
	QGpgME::CryptoConfigGroup *group,
	const std::vector<QGpgME::CryptoConfigEntry *> &entries,
	QGridLayout *glay,
	QWidget *widget)
	: QObject(module)
	{
	const int startRow = glay->rowCount();
	for (auto entry : entries) {
	CryptoConfigEntryGUI *entryGUI = CryptoConfigEntryGUIFactory::createEntryGUI(module, entry, entry->name(), glay, widget);
	if (entryGUI) {
	mEntryGUIs.append(entryGUI);
	entryGUI->load();
	}
	}
	const int endRow = glay->rowCount() - 1;
	if (endRow < startRow) {
	return;
	}

	const QString iconName = group->iconName();
	if (iconName.isEmpty()) {
	return;
	}

	QLabel *l = new QLabel(widget);
	l->setPixmap(loadIcon(iconName).pixmap(32, 32));
	glay->addWidget(l, startRow, 0, endRow - startRow + 1, 1, Qt::AlignTop);
	}

	bool Kleo::CryptoConfigGroupGUI::save()
	{
	bool changed = false;
	QList<CryptoConfigEntryGUI *>::Iterator it = mEntryGUIs.begin();
	for (; it != mEntryGUIs.end(); ++it) {
	if ((*it)->isChanged()) {
	(*it)->save();
	changed = true;
	}
	}
	return changed;
	}

	void Kleo::CryptoConfigGroupGUI::load()
	{
	QList<CryptoConfigEntryGUI *>::Iterator it = mEntryGUIs.begin();
	for (; it != mEntryGUIs.end(); ++it) {
	(*it)->load();
	}
	}

	void Kleo::CryptoConfigGroupGUI::defaults()
	{
	QList<CryptoConfigEntryGUI *>::Iterator it = mEntryGUIs.begin();
	for (; it != mEntryGUIs.end(); ++it) {
	(*it)->resetToDefault();
	}
	}

	////

	using constructor = CryptoConfigEntryGUI ()(CryptoConfigModule , QGpgME::CryptoConfigEntry , const QString &, QGridLayout , QWidget );

	namespace
	{
	template<typename T_Widget>
	CryptoConfigEntryGUI _create(CryptoConfigModule m, QGpgME::CryptoConfigEntry e, const QString &n, QGridLayout l, QWidget *p)
	{
	return new T_Widget(m, e, n, l, p);
	}
	}

	static const struct WidgetsByEntryName {
	const char *entryGlob;
	constructor create;
	} widgetsByEntryName[] = {
	{"//debug-level", &_create<CryptoConfigEntryDebugLevel>},
	{"scdaemon/*/reader-port", &_create<CryptoConfigEntryReaderPort>},
	};
	static const unsigned int numWidgetsByEntryName = sizeof widgetsByEntryName / sizeof *widgetsByEntryName;

	static const constructor listWidgets[QGpgME::CryptoConfigEntry::NumArgType] = {
	// None: A list of options with no arguments (e.g. -v -v -v) is shown as a spinbox
	&_create<CryptoConfigEntrySpinBox>,
	nullptr, // String
	// Int/UInt: Let people type list of numbers (1,2,3....). Untested.
	&_create<CryptoConfigEntryLineEdit>,
	&_create<CryptoConfigEntryLineEdit>,
	nullptr, // Path
	nullptr, // Formerly URL
	&_create<CryptoConfigEntryLDAPURL>,
	nullptr, // DirPath
	};

	static const constructor scalarWidgets[QGpgME::CryptoConfigEntry::NumArgType] = {
	// clang-format off
	&_create<CryptoConfigEntryCheckBox>, // None
	&_create<CryptoConfigEntryLineEdit>, // String
	&_create<CryptoConfigEntrySpinBox>, // Int
	&_create<CryptoConfigEntrySpinBox>, // UInt
	&_create<CryptoConfigEntryPath>, // Path
	nullptr, // Formerly URL
	nullptr, // LDAPURL
	&_create<CryptoConfigEntryDirPath>, // DirPath
	// clang-format on
	};

	CryptoConfigEntryGUI Kleo::CryptoConfigEntryGUIFactory::createEntryGUI(CryptoConfigModule module,
	QGpgME::CryptoConfigEntry *entry,
	const QString &entryName,
	QGridLayout *glay,
	QWidget *widget)
	{
	Q_ASSERT(entry);

	// try to lookup by path:
	const QString path = entry->path();
	for (unsigned int i = 0; i < numWidgetsByEntryName; ++i) {
	if (QRegularExpression::fromWildcard(QString::fromLatin1(widgetsByEntryName[i].entryGlob), Qt::CaseSensitive).match(path).hasMatch()) {
	return widgetsByEntryName[i].create(module, entry, entryName, glay, widget);
	}
	}

	// none found, so look up by type:
	const unsigned int argType = entry->argType();
	Q_ASSERT(argType < QGpgME::CryptoConfigEntry::NumArgType);
	if (entry->isList()) {
	if (const constructor create = listWidgets[argType]) {
	return create(module, entry, entryName, glay, widget);
	} else {
	qCWarning(KLEO_UI_LOG) << "No widget implemented for list of type" << entry->argType();
	}
	} else if (const constructor create = scalarWidgets[argType]) {
	return create(module, entry, entryName, glay, widget);
	} else {
	qCWarning(KLEO_UI_LOG) << "No widget implemented for type" << entry->argType();
	}

	return nullptr;
	}

	////

	Kleo::CryptoConfigEntryGUI::CryptoConfigEntryGUI(CryptoConfigModule module, QGpgME::CryptoConfigEntry entry, const QString &entryName)
	: QObject(module)
	, mEntry(entry)
	, mName(entryName)
	, mChanged(false)
	{
	connect(this, &CryptoConfigEntryGUI::changed, module, &CryptoConfigModule::changed);
	}

	QString Kleo::CryptoConfigEntryGUI::description() const
	{
	QString descr = mEntry->description();
	if (descr.isEmpty()) { // happens for expert options
	// String does not need to be translated because the options itself
	// are also not translated
	return QStringLiteral("\"%1\"").arg(mName);
	}
	if (i18nc("Translate this to 'yes' or 'no' (use the English words!) "
	"depending on whether your language uses "
	"Sentence style capitalization in GUI labels (yes) or not (no). "
	"Context: We get some backend strings in that have the wrong "
	"capitalization (in English, at least) so we need to force the "
	"first character to upper-case. It is this behaviour you can "
	"control for your language with this translation.",
	"yes")
	== QLatin1StringView("yes")) {
	descr[0] = descr[0].toUpper();
	}
	return descr;
	}

	void Kleo::CryptoConfigEntryGUI::resetToDefault()
	{
	mEntry->resetToDefault();
	load();
	}

	////

	Kleo::CryptoConfigEntryLineEdit::CryptoConfigEntryLineEdit(CryptoConfigModule *module,
	QGpgME::CryptoConfigEntry *entry,
	const QString &entryName,
	QGridLayout *glay,
	QWidget *widget)
	: CryptoConfigEntryGUI(module, entry, entryName)
	{
	const int row = glay->rowCount();
	mLineEdit = new KLineEdit(widget);
	QLabel *label = new QLabel(description(), widget);
	label->setBuddy(mLineEdit);
	glay->addWidget(label, row, 1);
	glay->addWidget(mLineEdit, row, 2);
	if (entry->isReadOnly()) {
	label->setEnabled(false);
	mLineEdit->setEnabled(false);
	} else {
	connect(mLineEdit, &KLineEdit::textChanged, this, &CryptoConfigEntryLineEdit::slotChanged);
	}
	}

	void Kleo::CryptoConfigEntryLineEdit::doSave()
	{
	mEntry->setStringValue(mLineEdit->text());
	}

	void Kleo::CryptoConfigEntryLineEdit::doLoad()
	{
	mLineEdit->setText(mEntry->stringValue());
	}

	////
	/* Note: Do not use "guru" as debug level but use the value 10. The
	former also enables the creation of hash dump files and thus leaves
	traces of plaintext on the disk. */
	static const struct {
	const KLazyLocalizedString label;
	const char *name;
	} debugLevels[] = {
	{kli18n("0 - None"), "none"},
	{kli18n("1 - Basic"), "basic"},
	{kli18n("2 - Verbose"), "advanced"},
	{kli18n("3 - More Verbose"), "expert"},
	{kli18n("4 - All"), "10"},
	};
	static const unsigned int numDebugLevels = sizeof debugLevels / sizeof *debugLevels;

	Kleo::CryptoConfigEntryDebugLevel::CryptoConfigEntryDebugLevel(CryptoConfigModule *module,
	QGpgME::CryptoConfigEntry *entry,
	const QString &entryName,
	QGridLayout *glay,
	QWidget *widget)
	: CryptoConfigEntryGUI(module, entry, entryName)
	, mComboBox(new QComboBox(widget))
	{
	QLabel *label = new QLabel(i18nc("@label:textbox", "Set the debugging level to"), widget);
	label->setBuddy(mComboBox);

	for (unsigned int i = 0; i < numDebugLevels; ++i) {
	mComboBox->addItem(KLocalizedString(debugLevels[i].label).toString());
	}

	if (entry->isReadOnly()) {
	label->setEnabled(false);
	mComboBox->setEnabled(false);
	} else {
	connect(mComboBox, &QComboBox::currentIndexChanged, this, &CryptoConfigEntryDebugLevel::slotChanged);
	}

	const int row = glay->rowCount();
	glay->addWidget(label, row, 1);
	glay->addWidget(mComboBox, row, 2);
	}

	void Kleo::CryptoConfigEntryDebugLevel::doSave()
	{
	const unsigned int idx = mComboBox->currentIndex();
	if (idx < numDebugLevels) {
	mEntry->setStringValue(QLatin1StringView(debugLevels[idx].name));
	} else {
	mEntry->setStringValue(QString());
	}
	}

	void Kleo::CryptoConfigEntryDebugLevel::doLoad()
	{
	const QString str = mEntry->stringValue();
	for (unsigned int i = 0; i < numDebugLevels; ++i) {
	if (str == QLatin1StringView(debugLevels[i].name)) {
	mComboBox->setCurrentIndex(i);
	return;
	}
	}
	mComboBox->setCurrentIndex(0);
	}

	////

	Kleo::CryptoConfigEntryPath::CryptoConfigEntryPath(CryptoConfigModule *module,
	QGpgME::CryptoConfigEntry *entry,
	const QString &entryName,
	QGridLayout *glay,
	QWidget *widget)
	: CryptoConfigEntryGUI(module, entry, entryName)
	, mFileNameRequester(nullptr)
	{
	const int row = glay->rowCount();
	mFileNameRequester = new FileNameRequester(widget);
	mFileNameRequester->setExistingOnly(false);
	mFileNameRequester->setFilter(QDir::Files);
	QLabel *label = new QLabel(description(), widget);
	label->setBuddy(mFileNameRequester);
	glay->addWidget(label, row, 1);
	glay->addWidget(mFileNameRequester, row, 2);
	if (entry->isReadOnly()) {
	label->setEnabled(false);
	mFileNameRequester->setEnabled(false);
	} else {
	connect(mFileNameRequester, &FileNameRequester::fileNameChanged, this, &CryptoConfigEntryPath::slotChanged);
	}
	}

	void Kleo::CryptoConfigEntryPath::doSave()
	{
	mEntry->setURLValue(QUrl::fromLocalFile(mFileNameRequester->fileName()));
	}

	void Kleo::CryptoConfigEntryPath::doLoad()
	{
	if (mEntry->urlValue().isLocalFile()) {
	mFileNameRequester->setFileName(mEntry->urlValue().toLocalFile());
	} else {
	mFileNameRequester->setFileName(mEntry->urlValue().toString());
	}
	}

	////

	Kleo::CryptoConfigEntryDirPath::CryptoConfigEntryDirPath(CryptoConfigModule *module,
	QGpgME::CryptoConfigEntry *entry,
	const QString &entryName,
	QGridLayout *glay,
	QWidget *widget)
	: CryptoConfigEntryGUI(module, entry, entryName)
	, mFileNameRequester(nullptr)
	{
	const int row = glay->rowCount();
	mFileNameRequester = new FileNameRequester(widget);
	mFileNameRequester->setExistingOnly(false);
	mFileNameRequester->setFilter(QDir::Dirs);
	QLabel *label = new QLabel(description(), widget);
	label->setBuddy(mFileNameRequester);
	glay->addWidget(label, row, 1);
	glay->addWidget(mFileNameRequester, row, 2);
	if (entry->isReadOnly()) {
	label->setEnabled(false);
	mFileNameRequester->setEnabled(false);
	} else {
	connect(mFileNameRequester, &FileNameRequester::fileNameChanged, this, &CryptoConfigEntryDirPath::slotChanged);
	}
	}

	void Kleo::CryptoConfigEntryDirPath::doSave()
	{
	mEntry->setURLValue(QUrl::fromLocalFile(mFileNameRequester->fileName()));
	}

	void Kleo::CryptoConfigEntryDirPath::doLoad()
	{
	mFileNameRequester->setFileName(mEntry->urlValue().toLocalFile());
	}

	////

	Kleo::CryptoConfigEntrySpinBox::CryptoConfigEntrySpinBox(CryptoConfigModule *module,
	QGpgME::CryptoConfigEntry *entry,
	const QString &entryName,
	QGridLayout *glay,
	QWidget *widget)
	: CryptoConfigEntryGUI(module, entry, entryName)
	{
	if (entry->argType() == QGpgME::CryptoConfigEntry::ArgType_None && entry->isList()) {
	mKind = ListOfNone;
	} else if (entry->argType() == QGpgME::CryptoConfigEntry::ArgType_UInt) {
	mKind = UInt;
	} else {
	Q_ASSERT(entry->argType() == QGpgME::CryptoConfigEntry::ArgType_Int);
	mKind = Int;
	}

	const int row = glay->rowCount();
	mNumInput = new QSpinBox(widget);
	QLabel *label = new QLabel(description(), widget);
	label->setBuddy(mNumInput);
	glay->addWidget(label, row, 1);
	glay->addWidget(mNumInput, row, 2);

	if (entry->isReadOnly()) {
	label->setEnabled(false);
	mNumInput->setEnabled(false);
	} else {
	mNumInput->setMinimum(mKind == Int ? std::numeric_limits<int>::min() : 0);
	mNumInput->setMaximum(std::numeric_limits<int>::max());
	connect(mNumInput, &QSpinBox::valueChanged, this, &CryptoConfigEntrySpinBox::slotChanged);
	}
	}

	void Kleo::CryptoConfigEntrySpinBox::doSave()
	{
	int value = mNumInput->value();
	switch (mKind) {
	case ListOfNone:
	mEntry->setNumberOfTimesSet(value);
	break;
	case UInt:
	mEntry->setUIntValue(value);
	break;
	case Int:
	mEntry->setIntValue(value);
	break;
	}
	}

	void Kleo::CryptoConfigEntrySpinBox::doLoad()
	{
	int value = 0;
	switch (mKind) {
	case ListOfNone:
	value = mEntry->numberOfTimesSet();
	break;
	case UInt:
	value = mEntry->uintValue();
	break;
	case Int:
	value = mEntry->intValue();
	break;
	}
	mNumInput->setValue(value);
	}

	////

	Kleo::CryptoConfigEntryCheckBox::CryptoConfigEntryCheckBox(CryptoConfigModule *module,
	QGpgME::CryptoConfigEntry *entry,
	const QString &entryName,
	QGridLayout *glay,
	QWidget *widget)
	: CryptoConfigEntryGUI(module, entry, entryName)
	{
	const int row = glay->rowCount();
	mCheckBox = new QCheckBox(widget);
	glay->addWidget(mCheckBox, row, 1, 1, 2);
	mCheckBox->setText(description());
	if (entry->isReadOnly()) {
	mCheckBox->setEnabled(false);
	} else {
	connect(mCheckBox, &QCheckBox::toggled, this, &CryptoConfigEntryCheckBox::slotChanged);
	}
	}

	void Kleo::CryptoConfigEntryCheckBox::doSave()
	{
	mEntry->setBoolValue(mCheckBox->isChecked());
	}

	void Kleo::CryptoConfigEntryCheckBox::doLoad()
	{
	mCheckBox->setChecked(mEntry->boolValue());
	}

	Kleo::CryptoConfigEntryLDAPURL::CryptoConfigEntryLDAPURL(CryptoConfigModule *module,
	QGpgME::CryptoConfigEntry *entry,
	const QString &entryName,
	QGridLayout *glay,
	QWidget *widget)
	: CryptoConfigEntryGUI(module, entry, entryName)
	{
	mLabel = new QLabel(widget);
	mPushButton = new QPushButton(entry->isReadOnly() ? i18n("Show...") : i18n("Edit..."), widget);

	const int row = glay->rowCount();
	QLabel *label = new QLabel(description(), widget);
	label->setBuddy(mPushButton);
	glay->addWidget(label, row, 1);
	auto hlay = new QHBoxLayout;
	glay->addLayout(hlay, row, 2);
	hlay->addWidget(mLabel, 1);
	hlay->addWidget(mPushButton);

	if (entry->isReadOnly()) {
	mLabel->setEnabled(false);
	}
	connect(mPushButton, &QPushButton::clicked, this, &CryptoConfigEntryLDAPURL::slotOpenDialog);
	}

	void Kleo::CryptoConfigEntryLDAPURL::doLoad()
	{
	setURLList(mEntry->urlValueList());
	}

	void Kleo::CryptoConfigEntryLDAPURL::doSave()
	{
	mEntry->setURLValueList(mURLList);
	}

	void prepareURLCfgDialog(QDialog dialog, DirectoryServicesWidget dirserv, bool readOnly)
	{
	QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok, dialog);

	if (!readOnly) {
	buttonBox->addButton(QDialogButtonBox::Cancel);
	buttonBox->addButton(QDialogButtonBox::RestoreDefaults);

	QPushButton *defaultsBtn = buttonBox->button(QDialogButtonBox::RestoreDefaults);

	QObject::connect(defaultsBtn, &QPushButton::clicked, dirserv, &DirectoryServicesWidget::clear);
	QObject::connect(buttonBox, &QDialogButtonBox::rejected, dialog, &QDialog::reject);
	}

	QObject::connect(buttonBox, &QDialogButtonBox::accepted, dialog, &QDialog::accept);

	auto layout = new QVBoxLayout;
	layout->addWidget(dirserv);
	layout->addWidget(buttonBox);
	dialog->setLayout(layout);
	}

	void Kleo::CryptoConfigEntryLDAPURL::slotOpenDialog()
	{
	if (!gpgme_check_version("1.16.0")) {
	KMessageBox::error(mPushButton->parentWidget(),
	i18n("Configuration of directory services is not possible "
	"because the used gpgme libraries are too old."),
	i18nc("@title:window", "Sorry"));
	return;
	}

	// I'm a bad boy and I do it all on the stack. Enough classes already :)
	// This is just a simple dialog around the directory-services-widget
	QDialog dialog(mPushButton->parentWidget());
	dialog.setWindowTitle(i18nc("@title:window", "Configure Directory Services"));

	auto dirserv = new DirectoryServicesWidget(&dialog);

	prepareURLCfgDialog(&dialog, dirserv, mEntry->isReadOnly());

	dirserv->setReadOnly(mEntry->isReadOnly());

	std::vector<KeyserverConfig> servers;
	std::transform(std::cbegin(mURLList), std::cend(mURLList), std::back_inserter(servers), [](const auto &url) {
	return KeyserverConfig::fromUrl(url);
	});
	dirserv->setKeyservers(servers);

	if (dialog.exec()) {
	QList<QUrl> urls;
	const auto servers = dirserv->keyservers();
	std::transform(std::begin(servers), std::end(servers), std::back_inserter(urls), [](const auto &server) {
	return server.toUrl();
	});
	setURLList(urls);
	slotChanged();
	}
	}

	void Kleo::CryptoConfigEntryLDAPURL::setURLList(const QList<QUrl> &urlList)
	{
	mURLList = urlList;
	if (mURLList.isEmpty()) {
	mLabel->setText(i18n("None configured"));
	} else {
	mLabel->setText(i18np("1 server configured", "%1 servers configured", mURLList.count()));
	}
	}

	#include "moc_cryptoconfigmodule_p.cpp"

	#include "moc_cryptoconfigmodule.cpp"

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