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/*
* Copyright (C) 2017 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 <QIODevice>
#include <QFile>
#include "core/Database.h"
#include "core/Group.h"
#include "core/Metadata.h"
#include "crypto/kdf/AesKdf.h"
#include "format/KeePass2Writer.h"
#include "format/Kdbx3Writer.h"
#include "format/Kdbx4Writer.h"
/**
* Write a database to a KDBX file.
*
* @param filename output filename
* @param db source database
* @return true on success
*/
bool KeePass2Writer::writeDatabase(const QString& filename, Database* db)
{
QFile file(filename);
if (!file.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
raiseError(file.errorString());
return false;
}
return writeDatabase(&file, db);
}
/**
* Write a database to a device in KDBX format.
*
* @param device output device
* @param db source database
* @return true on success
*/
bool KeePass2Writer::writeDatabase(QIODevice* device, Database* db) {
m_error = false;
m_errorStr.clear();
// determine KDBX3 vs KDBX4
bool hasCustomData = !db->publicCustomData().isEmpty() || (db->metadata()->customData() && !db->metadata()->customData()->isEmpty());
if (!hasCustomData) {
for (const auto& entry: db->rootGroup()->entriesRecursive(true)) {
if ((entry->customData() && !entry->customData()->isEmpty()) ||
(entry->group() && entry->group()->customData() && !entry->group()->customData()->isEmpty())) {
hasCustomData = true;
break;
}
}
}
if (db->kdf()->uuid() == KeePass2::KDF_AES_KDBX3 && !hasCustomData) {
m_version = KeePass2::FILE_VERSION_3_1;
m_writer.reset(new Kdbx3Writer());
} else {
m_version = KeePass2::FILE_VERSION_4;
m_writer.reset(new Kdbx4Writer());
}
return m_writer->writeDatabase(device, db);
}
bool KeePass2Writer::hasError() const
{
return m_error || (m_writer && m_writer->hasError());
}
QString KeePass2Writer::errorString() const
{
return m_writer ? m_writer->errorString() : m_errorStr;
}
/**
* Raise an error. Use in case of an unexpected write error.
*
* @param errorMessage error message
*/
void KeePass2Writer::raiseError(const QString& errorMessage)
{
m_error = true;
m_errorStr = errorMessage;
}
/**
* @return KDBX writer used for writing the output file
*/
QSharedPointer<KdbxWriter> KeePass2Writer::writer() const
{
return QSharedPointer<KdbxWriter>();
}
/**
* @return KDBX version used for writing the output file
*/
quint32 KeePass2Writer::version() const
{
return m_version;
}
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