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diff --git a/oox/source/helper/zipstorage.cxx b/oox/source/helper/zipstorage.cxx
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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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <oox/helper/zipstorage.hxx>
+
+#include <com/sun/star/embed/ElementModes.hpp>
+#include <com/sun/star/embed/XStorage.hpp>
+#include <com/sun/star/embed/XTransactedObject.hpp>
+#include <com/sun/star/io/XInputStream.hpp>
+#include <com/sun/star/io/XOutputStream.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <osl/diagnose.h>
+#include <sal/log.hxx>
+#include <tools/diagnose_ex.h>
+#include <comphelper/storagehelper.hxx>
+
+namespace oox {
+
+using namespace ::com::sun::star::container;
+using namespace ::com::sun::star::embed;
+using namespace ::com::sun::star::io;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::uno;
+
+ZipStorage::ZipStorage( const Reference< XComponentContext >& rxContext, const Reference< XInputStream >& rxInStream ) :
+ StorageBase( rxInStream, false )
+{
+ OSL_ENSURE( rxContext.is(), "ZipStorage::ZipStorage - missing component context" );
+ // create base storage object
+ if( !rxContext.is() )
+ return;
+
+ try
+ {
+ /* #i105325# ::comphelper::OStorageHelper::GetStorageFromInputStream()
+ cannot be used here as it will open a storage with format type
+ 'PackageFormat' that will not work with OOXML packages.
+
+ #161971# The MS-document storages should always be opened in repair
+ mode to ignore the format errors and get so much info as possible.
+ I hate this solution, but it seems to be the only consistent way to
+ handle the MS documents.
+
+ TODO: #i105410# switch to 'OFOPXMLFormat' and use its
+ implementation of relations handling.
+ */
+ mxStorage = ::comphelper::OStorageHelper::GetStorageOfFormatFromInputStream(
+ ZIP_STORAGE_FORMAT_STRING, rxInStream, rxContext, false);
+ }
+ catch (Exception const&)
+ {
+ TOOLS_WARN_EXCEPTION("oox.storage", "ZipStorage::ZipStorage exception opening input storage");
+ }
+}
+
+ZipStorage::ZipStorage( const Reference< XComponentContext >& rxContext, const Reference< XStream >& rxStream ) :
+ StorageBase( rxStream, false )
+{
+ OSL_ENSURE( rxContext.is(), "ZipStorage::ZipStorage - missing component context" );
+ // create base storage object
+ if( rxContext.is() ) try
+ {
+ const sal_Int32 nOpenMode = ElementModes::READWRITE | ElementModes::TRUNCATE;
+ mxStorage = ::comphelper::OStorageHelper::GetStorageOfFormatFromStream(
+ OFOPXML_STORAGE_FORMAT_STRING, rxStream, nOpenMode, rxContext, true);
+ }
+ catch (Exception const&)
+ {
+ TOOLS_WARN_EXCEPTION("oox.storage", "ZipStorage::ZipStorage exception opening output storage");
+ }
+}
+
+ZipStorage::ZipStorage( const ZipStorage& rParentStorage, const Reference< XStorage >& rxStorage, const OUString& rElementName ) :
+ StorageBase( rParentStorage, rElementName, rParentStorage.isReadOnly() ),
+ mxStorage( rxStorage )
+{
+ SAL_WARN_IF(!mxStorage.is(), "oox.storage", "ZipStorage::ZipStorage "
+ " - missing storage" );
+}
+
+ZipStorage::~ZipStorage()
+{
+}
+
+bool ZipStorage::implIsStorage() const
+{
+ return mxStorage.is();
+}
+
+Reference< XStorage > ZipStorage::implGetXStorage() const
+{
+ return mxStorage;
+}
+
+void ZipStorage::implGetElementNames( ::std::vector< OUString >& orElementNames ) const
+{
+ if( mxStorage.is() ) try
+ {
+ const Sequence<OUString> aNames = mxStorage->getElementNames();
+ if( aNames.hasElements() )
+ orElementNames.insert( orElementNames.end(), aNames.begin(), aNames.end() );
+ }
+ catch (Exception const&)
+ {
+ TOOLS_INFO_EXCEPTION("oox.storage", "getElementNames");
+ }
+}
+
+StorageRef ZipStorage::implOpenSubStorage( const OUString& rElementName, bool bCreateMissing )
+{
+ Reference< XStorage > xSubXStorage;
+ bool bMissing = false;
+ if( mxStorage.is() ) try
+ {
+ // XStorage::isStorageElement may throw various exceptions...
+ if( mxStorage->isStorageElement( rElementName ) )
+ xSubXStorage = mxStorage->openStorageElement(
+ rElementName, css::embed::ElementModes::READ );
+ }
+ catch( NoSuchElementException& )
+ {
+ bMissing = true;
+ }
+ catch (Exception const&)
+ {
+ TOOLS_INFO_EXCEPTION("oox.storage", "openStorageElement");
+ }
+
+ if( bMissing && bCreateMissing ) try
+ {
+ xSubXStorage = mxStorage->openStorageElement(
+ rElementName, css::embed::ElementModes::READWRITE );
+ }
+ catch (Exception const&)
+ {
+ TOOLS_INFO_EXCEPTION("oox.storage", "openStorageElement");
+ }
+
+ StorageRef xSubStorage;
+ if( xSubXStorage.is() )
+ xSubStorage.reset( new ZipStorage( *this, xSubXStorage, rElementName ) );
+ return xSubStorage;
+}
+
+Reference< XInputStream > ZipStorage::implOpenInputStream( const OUString& rElementName )
+{
+ Reference< XInputStream > xInStream;
+ if( mxStorage.is() ) try
+ {
+ xInStream.set( mxStorage->openStreamElement( rElementName, css::embed::ElementModes::READ ), UNO_QUERY );
+ }
+ catch (Exception const&)
+ {
+ TOOLS_INFO_EXCEPTION("oox.storage", "openStreamElement");
+ }
+ return xInStream;
+}
+
+Reference< XOutputStream > ZipStorage::implOpenOutputStream( const OUString& rElementName )
+{
+ Reference< XOutputStream > xOutStream;
+ if( mxStorage.is() ) try
+ {
+ xOutStream.set( mxStorage->openStreamElement( rElementName, css::embed::ElementModes::READWRITE ), UNO_QUERY );
+ }
+ catch (Exception const&)
+ {
+ TOOLS_INFO_EXCEPTION("oox.storage", "openStreamElement");
+ }
+ return xOutStream;
+}
+
+void ZipStorage::implCommit() const
+{
+ try
+ {
+ Reference< XTransactedObject >( mxStorage, UNO_QUERY_THROW )->commit();
+ }
+ catch (Exception const&)
+ {
+ TOOLS_WARN_EXCEPTION("oox.storage", "commit");
+ }
+}
+
+} // namespace oox
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */