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/**************************************************************
*
* 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
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
#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/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <comphelper/storagehelper.hxx>
#include "oox/helper/helper.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;
using ::rtl::OUString;
// ============================================================================
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() ) 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.
*/
Reference< XMultiServiceFactory > xFactory( rxContext->getServiceManager(), UNO_QUERY_THROW );
mxStorage = ::comphelper::OStorageHelper::GetStorageOfFormatFromInputStream(
ZIP_STORAGE_FORMAT_STRING, rxInStream, xFactory,
sal_False ); // DEV300_m80: Was sal_True, but DOCX and others did not load
}
catch( Exception& )
{
}
}
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
{
Reference< XMultiServiceFactory > xFactory( rxContext->getServiceManager(), UNO_QUERY_THROW );
const sal_Int32 nOpenMode = ElementModes::READWRITE | ElementModes::TRUNCATE;
mxStorage = ::comphelper::OStorageHelper::GetStorageOfFormatFromStream(
OFOPXML_STORAGE_FORMAT_STRING, rxStream, nOpenMode, xFactory, sal_True );
}
catch( Exception& )
{
OSL_ENSURE( false, "ZipStorage::ZipStorage - cannot open output storage" );
}
}
ZipStorage::ZipStorage( const ZipStorage& rParentStorage, const Reference< XStorage >& rxStorage, const OUString& rElementName ) :
StorageBase( rParentStorage, rElementName, rParentStorage.isReadOnly() ),
mxStorage( rxStorage )
{
OSL_ENSURE( mxStorage.is(), "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
{
Sequence< OUString > aNames;
if( mxStorage.is() ) try
{
aNames = mxStorage->getElementNames();
if( aNames.getLength() > 0 )
orElementNames.insert( orElementNames.end(), aNames.getConstArray(), aNames.getConstArray() + aNames.getLength() );
}
catch( Exception& )
{
}
}
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, ::com::sun::star::embed::ElementModes::READ );
}
catch( NoSuchElementException& )
{
bMissing = true;
}
catch( Exception& )
{
}
if( bMissing && bCreateMissing ) try
{
xSubXStorage = mxStorage->openStorageElement(
rElementName, ::com::sun::star::embed::ElementModes::READWRITE );
}
catch( Exception& )
{
}
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, ::com::sun::star::embed::ElementModes::READ ), UNO_QUERY );
}
catch( Exception& )
{
}
return xInStream;
}
Reference< XOutputStream > ZipStorage::implOpenOutputStream( const OUString& rElementName )
{
Reference< XOutputStream > xOutStream;
if( mxStorage.is() ) try
{
xOutStream.set( mxStorage->openStreamElement( rElementName, ::com::sun::star::embed::ElementModes::READWRITE ), UNO_QUERY );
}
catch( Exception& )
{
}
return xOutStream;
}
void ZipStorage::implCommit() const
{
try
{
Reference< XTransactedObject >( mxStorage, UNO_QUERY_THROW )->commit();
}
catch( Exception& )
{
}
}
// ============================================================================
} // namespace oox
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