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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 <comphelper/diagnose_ex.hxx>
#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::uno;
ZipStorage::ZipStorage( const Reference< XComponentContext >& rxContext, const Reference< XInputStream >& rxInStream, bool bRepairStorage ) :
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, bRepairStorage);
}
catch (Exception const&)
{
// this is normally a noise exception, because it happens during file format detection
TOOLS_INFO_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: */
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