Andrea Gelmini
318520ca2a
Change-Id: I85443b13c724e53d96fc80081c365bc4d9fc71bb Reviewed-on: https://gerrit.libreoffice.org/c/core/+/209807 Tested-by: Jenkins Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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*/
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#include <oox/crypto/DocumentEncryption.hxx>
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#include <com/sun/star/io/XInputStream.hpp>
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#include <com/sun/star/io/XOutputStream.hpp>
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#include <com/sun/star/io/XStream.hpp>
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#include <com/sun/star/io/XSeekable.hpp>
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#include <com/sun/star/packages/XPackageEncryption.hpp>
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#include <com/sun/star/uno/XComponentContext.hpp>
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#include <oox/helper/binaryoutputstream.hxx>
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#include <oox/ole/olestorage.hxx>
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#include <sal/log.hxx>
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namespace oox::crypto {
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using namespace css::io;
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using namespace css::uno;
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using namespace css::beans;
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DocumentEncryption::DocumentEncryption(const Reference< XComponentContext >& rxContext,
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Reference<XStream> const & xDocumentStream,
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oox::ole::OleStorage& rOleStorage,
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const Sequence<NamedValue>& rMediaEncData)
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: mxContext(rxContext)
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, mxDocumentStream(xDocumentStream)
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, mrOleStorage(rOleStorage)
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, mMediaEncData(rMediaEncData)
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{
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// Select engine
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for (int i = 0; i < rMediaEncData.getLength(); i++)
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{
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if (rMediaEncData[i].Name == "CryptoType")
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{
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OUString sCryptoType;
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rMediaEncData[i].Value >>= sCryptoType;
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if (sCryptoType == "Standard")
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sCryptoType = "StrongEncryptionDataSpace";
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Sequence<Any> aArguments;
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mxPackageEncryption.set(
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mxContext->getServiceManager()->createInstanceWithArgumentsAndContext(
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"com.sun.star.comp.oox.crypto." + sCryptoType, aArguments, mxContext), css::uno::UNO_QUERY);
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if (!mxPackageEncryption.is())
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{
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SAL_WARN("oox", "Requested encryption method \"" << sCryptoType << "\" is not supported");
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}
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break;
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}
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}
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}
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bool DocumentEncryption::encrypt()
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{
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if (!mxPackageEncryption.is())
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return false;
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Reference<XInputStream> xInputStream (mxDocumentStream->getInputStream(), UNO_SET_THROW);
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Reference<XSeekable> xSeekable(xInputStream, UNO_QUERY);
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if (!xSeekable.is())
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return false;
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xSeekable->seek(0); // seek to the beginning of the document stream
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if (!mrOleStorage.isStorage())
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return false;
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mxPackageEncryption->setupEncryption(mMediaEncData);
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Sequence<NamedValue> aStreams = mxPackageEncryption->encrypt(xInputStream);
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for (const NamedValue& aStream : aStreams)
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{
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Reference<XOutputStream> xOutputStream(mrOleStorage.openOutputStream(aStream.Name), UNO_SET_THROW);
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BinaryXOutputStream aBinaryOutputStream(xOutputStream, true);
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css::uno::Sequence<sal_Int8> aStreamSequence;
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aStream.Value >>= aStreamSequence;
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aBinaryOutputStream.writeData(aStreamSequence);
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aBinaryOutputStream.close();
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}
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return true;
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}
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} // namespace oox::crypto
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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