609 lines
19 KiB
C++
609 lines
19 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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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <com/sun/star/frame/Desktop.hpp>
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#include <com/sun/star/frame/XFrame.hpp>
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#include <com/sun/star/frame/XController.hpp>
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#include <com/sun/star/awt/XTopWindow.hpp>
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#include <com/sun/star/embed/XClassifiedObject.hpp>
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#include <com/sun/star/io/TempFile.hpp>
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#include <com/sun/star/io/XStream.hpp>
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#include <com/sun/star/io/XOutputStream.hpp>
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#include <com/sun/star/io/XSeekable.hpp>
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#include <com/sun/star/task/XInteractionHandler.hpp>
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#include <com/sun/star/ucb/SimpleFileAccess.hpp>
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#include <com/sun/star/util/XCloseable.hpp>
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#include <com/sun/star/document/XEventBroadcaster.hpp>
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#include <com/sun/star/document/XEventListener.hpp>
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#include <com/sun/star/document/XTypeDetection.hpp>
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#include <com/sun/star/container/XNameAccess.hpp>
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#include <cppuhelper/implbase.hxx>
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#include <comphelper/processfactory.hxx>
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#include <comphelper/storagehelper.hxx>
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#include <comphelper/mimeconfighelper.hxx>
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#include <comphelper/diagnose_ex.hxx>
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#include "olepersist.hxx"
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#include "ownview.hxx"
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using namespace ::com::sun::star;
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using namespace ::comphelper;
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namespace {
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class DummyHandler_Impl : public ::cppu::WeakImplHelper< task::XInteractionHandler >
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{
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public:
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DummyHandler_Impl() {}
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virtual void SAL_CALL handle( const uno::Reference< task::XInteractionRequest >& xRequest ) override;
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};
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}
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void SAL_CALL DummyHandler_Impl::handle( const uno::Reference< task::XInteractionRequest >& )
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{
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}
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// Object viewer
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OwnView_Impl::OwnView_Impl( const uno::Reference< uno::XComponentContext >& xContext,
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const uno::Reference< io::XInputStream >& xInputStream )
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: m_xContext( xContext )
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, m_bBusy( false )
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, m_bUseNative( false )
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{
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if ( !xContext.is() || !xInputStream.is() )
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throw uno::RuntimeException();
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m_aTempFileURL = GetNewFilledTempFile_Impl( xInputStream, m_xContext );
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}
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OwnView_Impl::~OwnView_Impl()
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{
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try {
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KillFile_Impl( m_aTempFileURL, m_xContext );
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} catch( uno::Exception& ) {}
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try {
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if ( !m_aNativeTempURL.isEmpty() )
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KillFile_Impl( m_aNativeTempURL, m_xContext );
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} catch( uno::Exception& ) {}
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}
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bool OwnView_Impl::CreateModelFromURL( const OUString& aFileURL )
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{
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bool bResult = false;
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if ( !aFileURL.isEmpty() )
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{
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try {
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uno::Reference < frame::XDesktop2 > xDocumentLoader = frame::Desktop::create(m_xContext);
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uno::Sequence< beans::PropertyValue > aArgs( m_aFilterName.isEmpty() ? 4 : 5 );
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auto pArgs = aArgs.getArray();
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pArgs[0].Name = "URL";
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pArgs[0].Value <<= aFileURL;
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pArgs[1].Name = "ReadOnly";
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pArgs[1].Value <<= true;
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pArgs[2].Name = "InteractionHandler";
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pArgs[2].Value <<= uno::Reference< task::XInteractionHandler >( new DummyHandler_Impl() );
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pArgs[3].Name = "DontEdit";
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pArgs[3].Value <<= true;
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if ( !m_aFilterName.isEmpty() )
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{
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pArgs[4].Name = "FilterName";
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pArgs[4].Value <<= m_aFilterName;
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}
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uno::Reference< frame::XModel > xModel( xDocumentLoader->loadComponentFromURL(
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aFileURL,
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u"_blank"_ustr,
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0,
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aArgs ),
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uno::UNO_QUERY );
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if ( xModel.is() )
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{
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uno::Reference< document::XEventBroadcaster > xBroadCaster( xModel, uno::UNO_QUERY );
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if ( xBroadCaster.is() )
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xBroadCaster->addEventListener( uno::Reference< document::XEventListener >(this) );
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uno::Reference< util::XCloseable > xCloseable( xModel, uno::UNO_QUERY );
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if ( xCloseable.is() )
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{
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xCloseable->addCloseListener( uno::Reference< util::XCloseListener >(this) );
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::osl::MutexGuard aGuard( m_aMutex );
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m_xModel = std::move(xModel);
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bResult = true;
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}
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}
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}
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catch (uno::Exception const&)
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{
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TOOLS_WARN_EXCEPTION("embeddedobj.ole", "OwnView_Impl::CreateModelFromURL:");
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}
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}
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return bResult;
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}
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bool OwnView_Impl::CreateModel( bool bUseNative )
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{
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bool bResult = false;
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try {
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bResult = CreateModelFromURL( bUseNative ? m_aNativeTempURL : m_aTempFileURL );
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}
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catch( uno::Exception& )
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{
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}
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return bResult;
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}
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OUString OwnView_Impl::GetFilterNameFromExtentionAndInStream(
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const css::uno::Reference< css::uno::XComponentContext >& xContext,
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std::u16string_view aNameWithExtention,
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const uno::Reference< io::XInputStream >& xInputStream )
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{
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if ( !xInputStream.is() )
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throw uno::RuntimeException();
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uno::Reference< document::XTypeDetection > xTypeDetection(
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xContext->getServiceManager()->createInstanceWithContext(u"com.sun.star.document.TypeDetection"_ustr, xContext),
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uno::UNO_QUERY_THROW );
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OUString aTypeName;
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if ( !aNameWithExtention.empty() )
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{
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OUString aURLToAnalyze = OUString::Concat("file:///") + aNameWithExtention;
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aTypeName = xTypeDetection->queryTypeByURL( aURLToAnalyze );
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}
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uno::Sequence< beans::PropertyValue > aArgs( aTypeName.isEmpty() ? 2 : 3 );
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auto pArgs = aArgs.getArray();
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pArgs[0].Name = "URL";
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pArgs[0].Value <<= u"private:stream"_ustr;
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pArgs[1].Name = "InputStream";
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pArgs[1].Value <<= xInputStream;
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if ( !aTypeName.isEmpty() )
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{
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pArgs[2].Name = "TypeName";
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pArgs[2].Value <<= aTypeName;
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}
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aTypeName = xTypeDetection->queryTypeByDescriptor( aArgs, true );
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OUString aFilterName;
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for (beans::PropertyValue const& prop : aArgs)
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if ( prop.Name == "FilterName" )
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prop.Value >>= aFilterName;
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if ( aFilterName.isEmpty() && !aTypeName.isEmpty() )
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{
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// get the default filter name for the type
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uno::Reference< container::XNameAccess > xNameAccess( xTypeDetection, uno::UNO_QUERY_THROW );
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uno::Sequence< beans::PropertyValue > aTypes;
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if ( xNameAccess.is() && ( xNameAccess->getByName( aTypeName ) >>= aTypes ) )
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{
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for (beans::PropertyValue const& prop : aTypes)
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{
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if ( prop.Name == "PreferredFilter" && ( prop.Value >>= aFilterName ) )
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{
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prop.Value >>= aFilterName;
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break;
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}
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}
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}
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}
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return aFilterName;
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}
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bool OwnView_Impl::ReadContentsAndGenerateTempFile( const uno::Reference< io::XInputStream >& xInStream,
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bool bParseHeader )
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{
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uno::Reference< io::XSeekable > xSeekable( xInStream, uno::UNO_QUERY_THROW );
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xSeekable->seek( 0 );
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// create m_aNativeTempURL
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OUString aNativeTempURL;
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uno::Reference < io::XTempFile > xNativeTempFile(
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io::TempFile::create(m_xContext),
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uno::UNO_SET_THROW );
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uno::Reference < io::XOutputStream > xNativeOutTemp = xNativeTempFile->getOutputStream();
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uno::Reference < io::XInputStream > xNativeInTemp = xNativeTempFile->getInputStream();
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if ( !xNativeOutTemp.is() || !xNativeInTemp.is() )
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throw uno::RuntimeException();
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try {
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xNativeTempFile->setRemoveFile( false );
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aNativeTempURL = xNativeTempFile->getUri();
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}
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catch ( uno::Exception& )
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{
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}
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bool bFailed = false;
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OUString aFileSuffix;
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if ( bParseHeader )
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{
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uno::Sequence< sal_Int8 > aReadSeq( 4 );
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// read the complete size of the Object Package
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if ( xInStream->readBytes( aReadSeq, 4 ) != 4 )
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return false;
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// read the first header ( have no idea what does this header mean )
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if ( xInStream->readBytes( aReadSeq, 2 ) != 2 || aReadSeq[0] != 2 || aReadSeq[1] != 0 )
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return false;
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// read file name
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// only extension is interesting so only subset of symbols is accepted
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do
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{
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if ( xInStream->readBytes( aReadSeq, 1 ) != 1 )
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return false;
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if (
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(aReadSeq[0] >= '0' && aReadSeq[0] <= '9') ||
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(aReadSeq[0] >= 'a' && aReadSeq[0] <= 'z') ||
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(aReadSeq[0] >= 'A' && aReadSeq[0] <= 'Z') ||
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aReadSeq[0] == '.'
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)
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{
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aFileSuffix += OUStringChar( sal_Unicode(aReadSeq[0]) );
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}
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} while( aReadSeq[0] );
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// skip url
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do
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{
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if ( xInStream->readBytes( aReadSeq, 1 ) != 1 )
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return false;
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} while( aReadSeq[0] );
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// check the next header
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if ( xInStream->readBytes( aReadSeq, 4 ) != 4
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|| aReadSeq[0] || aReadSeq[1] || aReadSeq[2] != 3 || aReadSeq[3] )
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return false;
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// get the size of the next entry
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if ( xInStream->readBytes( aReadSeq, 4 ) != 4 )
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return false;
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sal_uInt32 nUrlSize = static_cast<sal_uInt8>(aReadSeq[0])
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+ static_cast<sal_uInt8>(aReadSeq[1]) * 0x100
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+ static_cast<sal_uInt8>(aReadSeq[2]) * 0x10000
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+ static_cast<sal_uInt8>(aReadSeq[3]) * 0x1000000;
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sal_Int64 nTargetPos = xSeekable->getPosition() + nUrlSize;
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xSeekable->seek( nTargetPos );
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// get the size of stored data
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if ( xInStream->readBytes( aReadSeq, 4 ) != 4 )
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return false;
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sal_uInt32 nDataSize = static_cast<sal_uInt8>(aReadSeq[0])
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+ static_cast<sal_uInt8>(aReadSeq[1]) * 0x100
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+ static_cast<sal_uInt8>(aReadSeq[2]) * 0x10000
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+ static_cast<sal_uInt8>(aReadSeq[3]) * 0x1000000;
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aReadSeq.realloc( 32000 );
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sal_uInt32 nRead = 0;
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while ( nRead < nDataSize )
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{
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sal_uInt32 nToRead = std::min<sal_uInt32>( nDataSize - nRead, 32000 );
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sal_uInt32 nLocalRead = xInStream->readBytes( aReadSeq, nToRead );
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if ( !nLocalRead )
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{
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bFailed = true;
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break;
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}
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else if ( nLocalRead == 32000 )
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xNativeOutTemp->writeBytes( aReadSeq );
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else
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{
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uno::Sequence< sal_Int8 > aToWrite( aReadSeq );
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aToWrite.realloc( nLocalRead );
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xNativeOutTemp->writeBytes( aToWrite );
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}
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nRead += nLocalRead;
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}
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}
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else
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{
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uno::Sequence< sal_Int8 > aData( 8 );
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if ( xInStream->readBytes( aData, 8 ) == 8
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&& aData[0] == -1 && aData[1] == -1 && aData[2] == -1 && aData[3] == -1
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&& ( aData[4] == 2 || aData[4] == 3 ) && aData[5] == 0 && aData[6] == 0 && aData[7] == 0 )
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{
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// the header has to be removed
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xSeekable->seek( 40 );
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}
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else
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{
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// the usual Ole10Native format
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xSeekable->seek( 4 );
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}
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::comphelper::OStorageHelper::CopyInputToOutput( xInStream, xNativeOutTemp );
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}
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xNativeOutTemp->closeOutput();
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// The temporary native file is created, now the filter must be detected
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if ( !bFailed )
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{
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m_aFilterName = GetFilterNameFromExtentionAndInStream( m_xContext, aFileSuffix, xNativeInTemp );
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m_aNativeTempURL = aNativeTempURL;
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}
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return !bFailed;
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}
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void OwnView_Impl::CreateNative()
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{
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if ( !m_aNativeTempURL.isEmpty() )
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return;
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try
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{
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uno::Reference < ucb::XSimpleFileAccess3 > xAccess(
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ucb::SimpleFileAccess::create( m_xContext ) );
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uno::Reference< io::XInputStream > xInStream = xAccess->openFileRead( m_aTempFileURL );
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if ( !xInStream.is() )
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throw uno::RuntimeException();
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uno::Sequence< uno::Any > aArgs{ uno::Any(xInStream) };
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uno::Reference< container::XNameAccess > xNameAccess(
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m_xContext->getServiceManager()->createInstanceWithArgumentsAndContext(
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u"com.sun.star.embed.OLESimpleStorage"_ustr,
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aArgs, m_xContext ),
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uno::UNO_QUERY_THROW );
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static constexpr OUString aSubStreamName(u"\1Ole10Native"_ustr);
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uno::Reference< embed::XClassifiedObject > xStor( xNameAccess, uno::UNO_QUERY_THROW );
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uno::Sequence< sal_Int8 > aStorClassID = xStor->getClassID();
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if ( xNameAccess->hasByName( aSubStreamName ) )
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{
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sal_uInt8 const aClassID[] =
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{ 0x00, 0x03, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46 };
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// coverity[overrun-buffer-arg : FALSE] - coverity has difficulty with css::uno::Sequence
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uno::Sequence< sal_Int8 > aPackageClassID( reinterpret_cast<sal_Int8 const *>(aClassID), 16 );
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uno::Reference< io::XStream > xSubStream;
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xNameAccess->getByName( aSubStreamName ) >>= xSubStream;
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if ( xSubStream.is() )
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{
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bool bOk = false;
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if ( MimeConfigurationHelper::ClassIDsEqual( aPackageClassID, aStorClassID ) )
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{
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// the storage represents Object Package
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bOk = ReadContentsAndGenerateTempFile( xSubStream->getInputStream(), true );
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if ( !bOk && !m_aNativeTempURL.isEmpty() )
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{
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KillFile_Impl( m_aNativeTempURL, m_xContext );
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m_aNativeTempURL.clear();
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}
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}
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if ( !bOk )
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{
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bOk = ReadContentsAndGenerateTempFile( xSubStream->getInputStream(), false );
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if ( !bOk && !m_aNativeTempURL.isEmpty() )
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{
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KillFile_Impl( m_aNativeTempURL, m_xContext );
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m_aNativeTempURL.clear();
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}
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}
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}
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}
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else
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{
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// TODO/LATER: No native stream, needs a new solution
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}
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}
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catch( uno::Exception& )
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{}
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}
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bool OwnView_Impl::Open()
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{
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bool bResult = false;
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uno::Reference< frame::XModel > xExistingModel;
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{
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::osl::MutexGuard aGuard( m_aMutex );
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xExistingModel = m_xModel;
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if ( m_bBusy )
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return false;
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m_bBusy = true;
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}
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if ( xExistingModel.is() )
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{
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try {
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uno::Reference< frame::XController > xController = xExistingModel->getCurrentController();
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if ( xController.is() )
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{
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uno::Reference< frame::XFrame > xFrame = xController->getFrame();
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if ( xFrame.is() )
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{
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xFrame->activate();
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uno::Reference<awt::XTopWindow> xTopWindow( xFrame->getContainerWindow(), uno::UNO_QUERY );
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if(xTopWindow.is())
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xTopWindow->toFront();
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bResult = true;
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}
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}
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}
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catch( uno::Exception& )
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{
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}
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}
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else
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{
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bResult = CreateModel( m_bUseNative );
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if ( !bResult && !m_bUseNative )
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{
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// the original storage can not be recognized
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if ( m_aNativeTempURL.isEmpty() )
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{
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// create a temporary file for the native representation if there is no
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CreateNative();
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}
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if ( !m_aNativeTempURL.isEmpty() )
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{
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bResult = CreateModel( true );
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if ( bResult )
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m_bUseNative = true;
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}
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}
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}
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m_bBusy = false;
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return bResult;
|
|
}
|
|
|
|
|
|
void OwnView_Impl::Close()
|
|
{
|
|
uno::Reference< frame::XModel > xModel;
|
|
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
if ( !m_xModel.is() )
|
|
return;
|
|
xModel = m_xModel;
|
|
m_xModel.clear();
|
|
|
|
if ( m_bBusy )
|
|
return;
|
|
|
|
m_bBusy = true;
|
|
}
|
|
|
|
try {
|
|
uno::Reference< document::XEventBroadcaster > xBroadCaster( xModel, uno::UNO_QUERY );
|
|
if ( xBroadCaster.is() )
|
|
xBroadCaster->removeEventListener( uno::Reference< document::XEventListener >( this ) );
|
|
|
|
uno::Reference< util::XCloseable > xCloseable( xModel, uno::UNO_QUERY );
|
|
if ( xCloseable.is() )
|
|
{
|
|
xCloseable->removeCloseListener( uno::Reference< util::XCloseListener >( this ) );
|
|
xCloseable->close( true );
|
|
}
|
|
}
|
|
catch( uno::Exception& )
|
|
{}
|
|
|
|
m_bBusy = false;
|
|
}
|
|
|
|
|
|
void SAL_CALL OwnView_Impl::notifyEvent( const document::EventObject& aEvent )
|
|
{
|
|
|
|
uno::Reference< frame::XModel > xModel;
|
|
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
if ( aEvent.Source == m_xModel && aEvent.EventName == "OnSaveAsDone" )
|
|
{
|
|
// SaveAs operation took place, so just forget the model and deregister listeners
|
|
xModel = m_xModel;
|
|
m_xModel.clear();
|
|
}
|
|
}
|
|
|
|
if ( !xModel.is() )
|
|
return;
|
|
|
|
try {
|
|
uno::Reference< document::XEventBroadcaster > xBroadCaster( xModel, uno::UNO_QUERY );
|
|
if ( xBroadCaster.is() )
|
|
xBroadCaster->removeEventListener( uno::Reference< document::XEventListener >( this ) );
|
|
|
|
uno::Reference< util::XCloseable > xCloseable( xModel, uno::UNO_QUERY );
|
|
if ( xCloseable.is() )
|
|
xCloseable->removeCloseListener( uno::Reference< util::XCloseListener >( this ) );
|
|
}
|
|
catch( uno::Exception& )
|
|
{}
|
|
}
|
|
|
|
|
|
void SAL_CALL OwnView_Impl::queryClosing( const lang::EventObject&, sal_Bool )
|
|
{
|
|
}
|
|
|
|
|
|
void SAL_CALL OwnView_Impl::notifyClosing( const lang::EventObject& Source )
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
if ( Source.Source == m_xModel )
|
|
m_xModel.clear();
|
|
}
|
|
|
|
|
|
void SAL_CALL OwnView_Impl::disposing( const lang::EventObject& Source )
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
if ( Source.Source == m_xModel )
|
|
m_xModel.clear();
|
|
};
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|