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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
*/
#include "oox/crypto/DocumentEncryption.hxx"
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/io/XStream.hpp>
#include <com/sun/star/io/XSeekable.hpp>
#include <oox/helper/binaryinputstream.hxx>
#include <oox/helper/binaryoutputstream.hxx>
#include <oox/ole/olestorage.hxx>
namespace oox {
namespace core {
using namespace css::io;
using namespace css::uno;
DocumentEncryption::DocumentEncryption(Reference<XStream> const & xDocumentStream,
oox::ole::OleStorage& rOleStorage,
const OUString& rPassword)
: mxDocumentStream(xDocumentStream)
, mrOleStorage(rOleStorage)
, maPassword(rPassword)
{}
bool DocumentEncryption::encrypt()
{
Reference<XInputStream> xInputStream (mxDocumentStream->getInputStream(), UNO_SET_THROW);
Reference<XSeekable> xSeekable(xInputStream, UNO_QUERY);
if (!xSeekable.is())
return false;
sal_uInt32 aLength = xSeekable->getLength();
if (!mrOleStorage.isStorage())
return false;
Reference<XOutputStream> xEncryptionInfo(mrOleStorage.openOutputStream("EncryptionInfo"), UNO_SET_THROW);
BinaryXOutputStream aEncryptionInfoBinaryOutputStream(xEncryptionInfo, false);
mEngine.writeEncryptionInfo(maPassword, aEncryptionInfoBinaryOutputStream);
aEncryptionInfoBinaryOutputStream.close();
xEncryptionInfo->flush();
xEncryptionInfo->closeOutput();
Reference<XOutputStream> xEncryptedPackage(mrOleStorage.openOutputStream("EncryptedPackage"), UNO_SET_THROW);
BinaryXOutputStream aEncryptedPackageStream(xEncryptedPackage, false);
BinaryXInputStream aDocumentInputStream(xInputStream, false);
aDocumentInputStream.seekToStart();
aEncryptedPackageStream.WriteUInt32(aLength); // size
aEncryptedPackageStream.WriteUInt32(0U); // reserved
mEngine.encrypt(aDocumentInputStream, aEncryptedPackageStream);
aEncryptedPackageStream.close();
aDocumentInputStream.close();
xEncryptedPackage->flush();
xEncryptedPackage->closeOutput();
return true;
}
} // namespace core
} // namespace oox
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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