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/*
* Copyright (C) 2018 KeePassXC Team <team@keepassxc.org>
*
* This program 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 2 or (at your option)
* version 3 of the License.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "KeyFileEditWidget.h"
#include "ui_KeyFileEditWidget.h"
#include <gui/dbsettings/DatabaseSettingsWidget.h>
#include "gui/FileDialog.h"
#include "gui/MainWindow.h"
#include "gui/MessageBox.h"
#include "keys/CompositeKey.h"
#include "keys/FileKey.h"
KeyFileEditWidget::KeyFileEditWidget(DatabaseSettingsWidget* parent)
: KeyComponentWidget(parent)
, m_compUi(new Ui::KeyFileEditWidget())
, m_parent(parent)
{
setComponentName(tr("Key File"));
setComponentDescription(tr("<p>You can add a key file containing random bytes for additional security.</p>"
"<p>You must keep it secret and never lose it or you will be locked out!</p>"));
}
KeyFileEditWidget::~KeyFileEditWidget()
{
}
bool KeyFileEditWidget::addToCompositeKey(QSharedPointer<CompositeKey> key)
{
auto fileKey = QSharedPointer<FileKey>::create();
QString fileKeyName = m_compUi->keyFileLineEdit->text();
if (!fileKey->load(fileKeyName, nullptr)) {
return false;
}
if (fileKey->type() != FileKey::KeePass2XMLv2 && fileKey->type() != FileKey::Hashed) {
QMessageBox::warning(getMainWindow(),
tr("Old key file format"),
tr("You selected a key file in an old format which KeePassXC<br>"
"may stop supporting in the future.<br><br>"
"Please consider generating a new key file instead."),
QMessageBox::Ok);
}
key->addKey(fileKey);
return true;
}
bool KeyFileEditWidget::validate(QString& errorMessage) const
{
FileKey fileKey;
QString fileKeyError;
QString fileKeyName = m_compUi->keyFileLineEdit->text();
if (!fileKey.load(fileKeyName, &fileKeyError)) {
errorMessage = tr("Error loading the key file '%1'\nMessage: %2").arg(fileKeyName, fileKeyError);
return false;
}
return true;
}
QWidget* KeyFileEditWidget::componentEditWidget()
{
m_compEditWidget = new QWidget();
m_compUi->setupUi(m_compEditWidget);
connect(m_compUi->createKeyFileButton, SIGNAL(clicked()), SLOT(createKeyFile()));
connect(m_compUi->browseKeyFileButton, SIGNAL(clicked()), SLOT(browseKeyFile()));
return m_compEditWidget;
}
void KeyFileEditWidget::initComponentEditWidget(QWidget* widget)
{
Q_UNUSED(widget);
Q_ASSERT(m_compEditWidget);
m_compUi->keyFileLineEdit->setFocus();
}
void KeyFileEditWidget::createKeyFile()
{
Q_ASSERT(m_compEditWidget);
if (!m_compEditWidget) {
return;
}
QString filters = QString("%1 (*.keyx; *.key);;%2 (*)").arg(tr("Key files"), tr("All files"));
QString fileName = fileDialog()->getSaveFileName(this, tr("Create Key File..."), QString(), filters);
if (!fileName.isEmpty()) {
QString errorMsg;
bool created = FileKey::create(fileName, &errorMsg);
if (!created) {
MessageBox::critical(getMainWindow(),
tr("Error creating key file"),
tr("Unable to create key file: %1").arg(errorMsg),
QMessageBox::Button::Ok);
} else {
m_compUi->keyFileLineEdit->setText(fileName);
}
}
}
void KeyFileEditWidget::browseKeyFile()
{
Q_ASSERT(m_compEditWidget);
if (!m_compEditWidget) {
return;
}
QString filters = QString("%1 (*.keyx; *.key);;%2 (*)").arg(tr("Key files"), tr("All files"));
QString fileName = fileDialog()->getOpenFileName(this, tr("Select a key file"), QString(), filters);
if (QFileInfo(fileName).canonicalFilePath() == m_parent->getDatabase()->canonicalFilePath()) {
MessageBox::critical(getMainWindow(),
tr("Invalid Key File"),
tr("You cannot use the current database as its own keyfile. Please choose a different "
"file or generate a new key file."));
return;
} else if (fileName.endsWith(".kdbx", Qt::CaseInsensitive)) {
auto response =
MessageBox::warning(getMainWindow(),
tr("Suspicious Key File"),
tr("The chosen key file looks like a password database file. A key file must be a "
"static file that never changes or you will lose access to your database "
"forever.\nAre you sure you want to continue with this file?"),
MessageBox::Continue | MessageBox::Cancel,
MessageBox::Cancel);
if (response != MessageBox::Continue) {
return;
}
}
if (!fileName.isEmpty()) {
m_compUi->keyFileLineEdit->setText(fileName);
}
}
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