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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/XSeekable.hpp>
#include "oox/helper/binaryinputstream.hxx"
#include "oox/helper/binaryoutputstream.hxx"
namespace oox {
namespace core {
using namespace css::beans;
using namespace css::io;
using namespace css::lang;
using namespace css::uno;
using namespace std;
DocumentEncryption::DocumentEncryption(Reference< XStream > xDocumentStream, oox::ole::OleStorage& rOleStorage, OUString aPassword) :
mxDocumentStream(xDocumentStream),
mrOleStorage(rOleStorage),
maPassword(aPassword)
{}
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.writeValue<sal_uInt32>( aLength ); // size
aEncryptedPackageStream.writeValue<sal_uInt32>( 0 ); // 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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