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office-gobmx/package/source/xstor/owriteablestream.cxx
Rüdiger Timm f16f936c8a INTEGRATION: CWS mav07 (1.2.4); FILE MERGED 
2003/12/16 09:33:43 mav 1.2.4.2: RESYNC: (1.2-1.3); FILE MERGED
2003/11/21 12:12:35 mav 1.2.4.1: #112923# allow storage copiing when stream is opened for writing
2004-01-06 07:45:57 +00:00

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/*************************************************************************
*
* $RCSfile: owriteablestream.cxx,v $
*
* $Revision: 1.4 $
*
* last change: $Author: rt $ $Date: 2004-01-06 08:45:57 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#include "owriteablestream.hxx"
#ifndef _COM_SUN_STAR_UCB_XSIMPLEFILEACCESS_HPP_
#include <com/sun/star/ucb/XSimpleFileAccess.hpp>
#endif
#ifndef _COM_SUN_STAR_UCB_XCOMMANDENVIRONMENT_HPP_
#include <com/sun/star/ucb/XCommandEnvironment.hpp>
#endif
#ifndef _COM_SUN_STAR_LANG_XCOMPONENT_HPP_
#include <com/sun/star/lang/XComponent.hpp>
#endif
#ifndef _COM_SUN_STAR_LANG_DISPOSEDEXCEPTION_HPP_
#include <com/sun/star/lang/DisposedException.hpp>
#endif
#ifndef _COM_SUN_STAR_LANG_XUNOTUNNEL_HPP_
#include <com/sun/star/lang/XUnoTunnel.hpp>
#endif
#ifndef _COM_SUN_STAR_IO_IOEXCEPTION_HPP_
#include <com/sun/star/io/IOException.hpp>
#endif
#ifndef _COM_SUN_STAR_EMBED_ELEMENTMODES_HPP_
#include <com/sun/star/embed/ElementModes.hpp>
#endif
#ifndef _CPPUHELPER_TYPEPROVIDER_HXX_
#include <cppuhelper/typeprovider.hxx>
#endif
#ifndef _OSL_DIAGNOSE_H_
#include <osl/diagnose.h>
#endif
#ifndef _COMPHELPER_PROCESSFACTORY_HXX
#include <comphelper/processfactory.hxx>
#endif
#include "oseekinstream.hxx"
#include "mutexholder.hxx"
#include "xstorage.hxx"
using namespace ::com::sun::star;
void completeStorageStreamCopy_Impl( const uno::Reference< io::XStream >& xSource,
const uno::Reference< io::XStream >& xDest );
sal_Bool SequencesEqual( uno::Sequence< sal_Int8 > aSequence1, uno::Sequence< sal_Int8 > aSequence2 )
{
if ( aSequence1.getLength() != aSequence2.getLength() )
return sal_False;
for ( sal_Int32 nInd = 0; nInd < aSequence1.getLength(); nInd++ )
if ( aSequence1[nInd] != aSequence2[nInd] )
return sal_False;
return sal_True;
}
//-----------------------------------------------
sal_Bool KillFile( const ::rtl::OUString& aURL, const uno::Reference< lang::XMultiServiceFactory >& xFactory )
{
if ( !xFactory.is() )
return sal_False;
sal_Bool bRet = sal_False;
try
{
uno::Reference < ucb::XSimpleFileAccess > xAccess(
xFactory->createInstance (
::rtl::OUString::createFromAscii( "com.sun.star.ucb.SimpleFileAccess" ) ),
uno::UNO_QUERY );
if ( xAccess.is() )
{
xAccess->kill( aURL );
bRet = sal_True;
}
}
catch( uno::Exception& )
{
}
return bRet;
}
const sal_Int32 n_ConstBufferSize = 32000;
//-----------------------------------------------
void copyInputToOutput_Impl( const uno::Reference< io::XInputStream >& aIn,
const uno::Reference< io::XOutputStream >& aOut )
{
sal_Int32 nRead;
uno::Sequence < sal_Int8 > aSequence ( n_ConstBufferSize );
do
{
nRead = aIn->readBytes ( aSequence, n_ConstBufferSize );
if ( nRead < n_ConstBufferSize )
{
uno::Sequence < sal_Int8 > aTempBuf ( aSequence.getConstArray(), nRead );
aOut->writeBytes ( aTempBuf );
}
else
aOut->writeBytes ( aSequence );
}
while ( nRead == n_ConstBufferSize );
}
::rtl::OUString GetNewTempFileURL( const uno::Reference< lang::XMultiServiceFactory > xFactory )
{
::rtl::OUString aTempURL;
uno::Reference < beans::XPropertySet > xTempFile(
xFactory->createInstance( ::rtl::OUString::createFromAscii( "com.sun.star.io.TempFile" ) ),
uno::UNO_QUERY );
if ( !xTempFile.is() )
throw uno::RuntimeException(); // TODO
try {
xTempFile->setPropertyValue( ::rtl::OUString::createFromAscii( "RemoveFile" ), uno::makeAny( sal_False ) );
uno::Any aUrl = xTempFile->getPropertyValue( ::rtl::OUString::createFromAscii( "Uri" ) );
aUrl >>= aTempURL;
}
catch ( uno::Exception& )
{
}
if ( !aTempURL.getLength() )
throw uno::RuntimeException(); // TODO: can not create tempfile
return aTempURL;
}
// ================================================================
//-----------------------------------------------
OWriteStream_Impl::OWriteStream_Impl( OStorage_Impl* pParent,
uno::Reference< packages::XDataSinkEncrSupport > xPackageStream,
uno::Reference< ::com::sun::star::lang::XSingleServiceFactory > xPackage,
uno::Reference< lang::XMultiServiceFactory > xFactory,
sal_Bool bForceEncrypted )
: m_pAntiImpl( NULL )
, m_bIsModified( sal_False )
, m_bCommited( sal_False )
, m_xPackageStream( xPackageStream )
, m_xFactory( xFactory )
, m_pParent( pParent )
, m_bHasCachedPassword( sal_False )
, m_bForceEncrypted( bForceEncrypted )
, m_xPackage( xPackage )
{
OSL_ENSURE( xPackageStream.is(), "No package stream is provided!\n" );
OSL_ENSURE( xPackage.is(), "No package component is provided!\n" );
OSL_ENSURE( m_xFactory.is(), "No package stream is provided!\n" );
OSL_ENSURE( pParent, "No parent storage is provided!\n" );
}
//-----------------------------------------------
OWriteStream_Impl::~OWriteStream_Impl()
{
DisposeWrappers();
if ( m_aTempURL.getLength() )
{
KillFile( m_aTempURL, GetServiceFactory() );
m_aTempURL = ::rtl::OUString();
}
}
//-----------------------------------------------
void OWriteStream_Impl::InsertIntoPackageFolder( const ::rtl::OUString& aName,
const uno::Reference< container::XNameContainer >& xParentPackageFolder )
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
if ( m_bCommited )
{
OSL_ENSURE( m_xPackageStream.is(), "An inserted stream is incomplete!\n" );
uno::Reference< lang::XUnoTunnel > xTunnel( m_xPackageStream, uno::UNO_QUERY );
if ( !xTunnel.is() )
throw uno::RuntimeException(); // TODO
xParentPackageFolder->insertByName( aName, uno::makeAny( xTunnel ) );
m_bCommited = sal_False;
}
}
//-----------------------------------------------
sal_Bool OWriteStream_Impl::IsEncrypted()
{
if ( m_bForceEncrypted || m_bHasCachedPassword )
return sal_True;
if ( m_aTempURL.getLength() )
return sal_False;
GetStreamProperties();
for ( sal_Int32 nInd = 0; nInd < m_aProps.getLength(); nInd++ )
if ( m_aProps[nInd].Name.equalsAscii( "Encrypted" ) )
{
sal_Bool bEncr = sal_False;
if ( m_aProps[nInd].Value >>= bEncr )
return bEncr;
}
OSL_ENSURE( sal_False, "Can't read encryption related properties!\n" );
throw io::IOException(); // TODO
return sal_False; // not reachable
}
//-----------------------------------------------
void OWriteStream_Impl::DisposeWrappers()
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
if ( m_pAntiImpl )
{
try {
m_pAntiImpl->dispose();
}
catch ( uno::RuntimeException& )
{}
m_pAntiImpl = NULL;
}
m_pParent = NULL;
if ( !m_aInputStreamsList.empty() )
{
for ( InputStreamsList_Impl::iterator pStreamIter = m_aInputStreamsList.begin();
pStreamIter != m_aInputStreamsList.end(); pStreamIter++ )
{
if ( (*pStreamIter) )
{
(*pStreamIter)->InternalDispose();
(*pStreamIter) = NULL;
}
}
m_aInputStreamsList.clear();
}
}
//-----------------------------------------------
uno::Reference< lang::XMultiServiceFactory > OWriteStream_Impl::GetServiceFactory()
{
if ( m_xFactory.is() )
return m_xFactory;
return ::comphelper::getProcessServiceFactory();
}
//-----------------------------------------------
::rtl::OUString OWriteStream_Impl::GetFilledTempFile()
{
if ( !m_aTempURL.getLength() )
{
m_aTempURL = GetNewTempFileURL( GetServiceFactory() );
try {
if ( m_aTempURL )
{
uno::Reference < ucb::XSimpleFileAccess > xTempAccess(
GetServiceFactory()->createInstance (
::rtl::OUString::createFromAscii( "com.sun.star.ucb.SimpleFileAccess" ) ),
uno::UNO_QUERY );
if ( !xTempAccess.is() )
throw uno::RuntimeException(); // TODO:
// in case of new inserted package stream it is possible that input stream still was not set
uno::Reference< io::XInputStream > xOrigStream = m_xPackageStream->getDataStream();
if ( xOrigStream.is() )
{
uno::Reference< io::XOutputStream > xTempOutStream = xTempAccess->openFileWrite( m_aTempURL );
if ( xTempOutStream.is() )
{
// copy stream contents to the file
copyInputToOutput_Impl( xOrigStream, xTempOutStream );
xTempOutStream->closeOutput();
xTempOutStream = uno::Reference< io::XOutputStream >();
}
else
throw io::IOException(); // TODO:
}
}
}
catch( packages::WrongPasswordException& )
{
KillFile( m_aTempURL, GetServiceFactory() );
m_aTempURL = ::rtl::OUString();
throw;
}
catch( uno::Exception& )
{
KillFile( m_aTempURL, GetServiceFactory() );
m_aTempURL = ::rtl::OUString();
}
}
return m_aTempURL;
}
//-----------------------------------------------
uno::Reference< io::XStream > OWriteStream_Impl::GetTempFileAsStream()
{
uno::Reference< io::XStream > xTempStream;
if ( !m_aTempURL.getLength() )
m_aTempURL = GetFilledTempFile();
uno::Reference < ucb::XSimpleFileAccess > xTempAccess(
GetServiceFactory()->createInstance (
::rtl::OUString::createFromAscii( "com.sun.star.ucb.SimpleFileAccess" ) ),
uno::UNO_QUERY );
if ( !xTempAccess.is() )
throw uno::RuntimeException(); // TODO:
try
{
xTempStream = xTempAccess->openFileReadWrite( m_aTempURL );
}
catch( uno::Exception& )
{
}
// the method must always return a stream
// in case the stream can not be open
// an exception should be thrown
if ( !xTempStream.is() )
throw io::IOException(); //TODO:
return xTempStream;
}
//-----------------------------------------------
uno::Reference< io::XInputStream > OWriteStream_Impl::GetTempFileAsInputStream()
{
uno::Reference< io::XInputStream > xInputStream;
if ( !m_aTempURL.getLength() )
m_aTempURL = GetFilledTempFile();
uno::Reference < ucb::XSimpleFileAccess > xTempAccess(
GetServiceFactory()->createInstance (
::rtl::OUString::createFromAscii( "com.sun.star.ucb.SimpleFileAccess" ) ),
uno::UNO_QUERY );
if ( !xTempAccess.is() )
throw uno::RuntimeException(); // TODO:
try
{
xInputStream = xTempAccess->openFileRead( m_aTempURL );
}
catch( uno::Exception& )
{
}
// the method must always return a stream
// in case the stream can not be open
// an exception should be thrown
if ( !xInputStream.is() )
throw io::IOException(); // TODO:
return xInputStream;
}
//-----------------------------------------------
void OWriteStream_Impl::CopyTempFileToOutput( uno::Reference< io::XOutputStream > xOutStream )
{
OSL_ENSURE( xOutStream.is(), "The stream must be specified!\n" );
OSL_ENSURE( m_aTempURL.getLength(), "The temporary must exist!\n" );
uno::Reference < ucb::XSimpleFileAccess > xTempAccess(
GetServiceFactory()->createInstance (
::rtl::OUString::createFromAscii( "com.sun.star.ucb.SimpleFileAccess" ) ),
uno::UNO_QUERY );
if ( !xTempAccess.is() )
throw uno::RuntimeException(); // TODO:
uno::Reference< io::XInputStream > xTempInStream;
try
{
xTempInStream = xTempAccess->openFileRead( m_aTempURL );
}
catch( uno::Exception& )
{
}
if ( !xTempInStream.is() )
throw io::IOException(); //TODO:
copyInputToOutput_Impl( xTempInStream, xOutStream );
}
// =================================================================================================
//-----------------------------------------------
void OWriteStream_Impl::Commit()
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() ) ;
// this call can be made only during parent storage commit
// the parent storage is responsible for the correct handling
// of deleted and renamed contents
OSL_ENSURE( m_xPackageStream.is(), "No package stream is set!\n" );
if ( !m_bIsModified )
return;
// The stream must be free
OSL_ENSURE( !m_pAntiImpl || !m_pAntiImpl->m_xOutStream.is(), "Commiting storage while a write stream is open!\n" );
OSL_ENSURE( m_aTempURL.getLength(), "The temporary must exist!\n" );
uno::Reference < io::XOutputStream > xTempOut(
GetServiceFactory()->createInstance (
::rtl::OUString::createFromAscii( "com.sun.star.io.TempFile" ) ),
uno::UNO_QUERY );
uno::Reference < io::XInputStream > xTempIn( xTempOut, uno::UNO_QUERY );
if ( !xTempOut.is() || !xTempIn.is() )
throw io::IOException();
// Copy temporary file to a new one
CopyTempFileToOutput( xTempOut );
xTempOut->closeOutput();
uno::Sequence< uno::Any > aSeq( 1 );
aSeq[0] <<= sal_False;
uno::Reference< packages::XDataSinkEncrSupport > xNewPackageStream(
m_xPackage->createInstanceWithArguments( aSeq ),
uno::UNO_QUERY );
if ( !xNewPackageStream.is() )
throw uno::RuntimeException();
// use new file as current persistent representation
// the new file will be removed after it's stream is closed
xNewPackageStream->setDataStream( xTempIn );
// copy properties to the package stream
uno::Reference< beans::XPropertySet > xPropertySet( xNewPackageStream, uno::UNO_QUERY );
if ( !xPropertySet.is() )
throw uno::RuntimeException();
if ( m_bHasCachedPassword )
xPropertySet->setPropertyValue( ::rtl::OUString::createFromAscii( "EncryptionKey" ), uno::makeAny( m_aKey ) );
for ( sal_Int32 nInd = 0; nInd < m_aProps.getLength(); nInd++ )
{
if ( m_aProps[nInd].Name.equalsAscii( "Size" ) && m_pAntiImpl )
m_aProps[nInd].Value <<= ((sal_Int32)m_pAntiImpl->m_xSeekable->getLength());
xPropertySet->setPropertyValue( m_aProps[nInd].Name, m_aProps[nInd].Value );
}
// the stream should be free soon, after package is stored
m_xPackageStream = xNewPackageStream;
m_bIsModified = sal_False;
m_bCommited = sal_True; // will allow to use transaction on stream level if will need it
}
//-----------------------------------------------
void OWriteStream_Impl::Revert()
{
// can be called only from parent storage
// means complete reload of the stream
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() ) ;
if ( !m_bIsModified )
return; // nothing to do
// The stream must be free
OSL_ENSURE( !m_pAntiImpl, "Reverting storage while a write stream is open!\n" );
if ( m_pAntiImpl )
throw io::IOException(); // TODO
OSL_ENSURE( m_aTempURL.getLength(), "The temporary must exist!\n" );
if ( m_aTempURL.getLength() )
{
KillFile( m_aTempURL, GetServiceFactory() );
m_aTempURL = ::rtl::OUString();
}
m_aProps.realloc( 0 );
m_bIsModified = sal_False;
m_bHasCachedPassword = sal_False;
m_aKey.realloc( 0 );
}
//-----------------------------------------------
uno::Sequence< beans::PropertyValue > OWriteStream_Impl::GetStreamProperties()
{
if ( !m_aProps.getLength() )
{
m_aProps.realloc( 4 );
m_aProps[0].Name = ::rtl::OUString::createFromAscii("MediaType");
m_aProps[1].Name = ::rtl::OUString::createFromAscii("Size");
m_aProps[2].Name = ::rtl::OUString::createFromAscii("Encrypted");
m_aProps[3].Name = ::rtl::OUString::createFromAscii("Compressed");
// TODO: may be also raw stream should be marked
uno::Reference< beans::XPropertySet > xPropSet( m_xPackageStream, uno::UNO_QUERY );
if ( xPropSet.is() )
{
for ( sal_Int32 nInd = 0; nInd < m_aProps.getLength(); nInd++ )
{
try {
m_aProps[nInd].Value = xPropSet->getPropertyValue( m_aProps[nInd].Name );
}
catch( uno::Exception& )
{
OSL_ENSURE( sal_False, "A property can't be retrieved!\n" );
}
}
}
else
{
OSL_ENSURE( sal_False, "Can not get properties from a package stream!\n" );
throw uno::RuntimeException();
}
}
return m_aProps;
}
//-----------------------------------------------
void OWriteStream_Impl::CopyInternallyTo_Impl( const uno::Reference< io::XStream >& xDestStream,
const uno::Sequence< sal_Int8 >& aKey )
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() ) ;
if ( m_pAntiImpl )
{
m_pAntiImpl->CopyToStreamInternally_Impl( xDestStream );
}
else
{
uno::Reference< io::XStream > xOwnStream = GetStream( embed::ElementModes::ELEMENT_READ, aKey );
if ( !xOwnStream.is() )
throw io::IOException(); // TODO
completeStorageStreamCopy_Impl( xOwnStream, xDestStream );
}
}
//-----------------------------------------------
void OWriteStream_Impl::CopyInternallyTo_Impl( const uno::Reference< io::XStream >& xDestStream )
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() ) ;
if ( m_pAntiImpl )
{
m_pAntiImpl->CopyToStreamInternally_Impl( xDestStream );
}
else
{
uno::Reference< io::XStream > xOwnStream = GetStream( embed::ElementModes::ELEMENT_READ );
if ( !xOwnStream.is() )
throw io::IOException(); // TODO
completeStorageStreamCopy_Impl( xOwnStream, xDestStream );
}
}
//-----------------------------------------------
uno::Reference< io::XStream > OWriteStream_Impl::GetStream( sal_Int32 nStreamMode, const uno::Sequence< sal_Int8 >& aKey )
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() ) ;
OSL_ENSURE( m_xPackageStream.is(), "No package stream is set!\n" );
if ( m_pAntiImpl )
throw io::IOException(); // TODO:
if ( !IsEncrypted() )
throw packages::NoEncryptionException();
uno::Reference< io::XStream > xResultStream;
if ( m_bHasCachedPassword )
{
if ( !SequencesEqual( m_aKey, aKey ) )
throw packages::WrongPasswordException();
// the correct key must be set already
xResultStream = GetStream_Impl( nStreamMode );
}
else
{
uno::Reference< beans::XPropertySet > xPropertySet( m_xPackageStream, uno::UNO_QUERY );
if ( !xPropertySet.is() )
throw uno::RuntimeException();
::rtl::OUString aString_EncryptionKey = ::rtl::OUString::createFromAscii( "EncryptionKey" );
try {
xPropertySet->setPropertyValue( aString_EncryptionKey, uno::makeAny( aKey ) );
}
catch ( uno::Exception& )
{
OSL_ENSURE( sal_False, "Can't write encryption related properties!\n" );
throw io::IOException(); // TODO
}
try {
xResultStream = GetStream_Impl( nStreamMode );
m_bHasCachedPassword = sal_True;
m_aKey = aKey;
}
catch( packages::WrongPasswordException& )
{
try {
xPropertySet->setPropertyValue( aString_EncryptionKey, uno::makeAny( uno::Sequence< sal_Int8 >() ) );
}
catch ( uno::Exception& )
{
OSL_ENSURE( sal_False, "Can't write encryption related properties!\n" );
}
throw;
}
catch( uno::Exception& )
{
OSL_ENSURE( sal_False, "Can't open encrypted stream!\n" );
try {
xPropertySet->setPropertyValue( aString_EncryptionKey, uno::makeAny( uno::Sequence< sal_Int8 >() ) );
}
catch ( uno::Exception& )
{
OSL_ENSURE( sal_False, "Can't write encryption related properties!\n" );
}
throw;
}
}
OSL_ENSURE( xResultStream.is(), "In case stream can not be retrieved an exception must be thrown!\n" );
return xResultStream;
}
//-----------------------------------------------
uno::Reference< io::XStream > OWriteStream_Impl::GetStream( sal_Int32 nStreamMode )
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() ) ;
OSL_ENSURE( m_xPackageStream.is(), "No package stream is set!\n" );
if ( m_pAntiImpl )
throw io::IOException(); // TODO:
uno::Reference< io::XStream > xResultStream;
if ( IsEncrypted() )
{
uno::Sequence< sal_Int8 > aGlobalKey = GetCommonRootPass();
if ( m_bHasCachedPassword && !SequencesEqual( m_aKey, aGlobalKey ) )
throw packages::WrongPasswordException();
xResultStream = GetStream_Impl( nStreamMode );
if ( !m_bHasCachedPassword )
{
m_bHasCachedPassword = sal_True;
m_aKey = aGlobalKey;
}
}
else
xResultStream = GetStream_Impl( nStreamMode );
return xResultStream;
}
//-----------------------------------------------
uno::Reference< io::XStream > OWriteStream_Impl::GetStream_Impl( sal_Int32 nStreamMode )
{
// private method, no mutex is used
GetStreamProperties();
if ( ( nStreamMode & embed::ElementModes::ELEMENT_READWRITE ) == embed::ElementModes::ELEMENT_READ )
{
uno::Reference< io::XInputStream > xInStream;
if ( m_aTempURL.getLength() )
xInStream = GetTempFileAsInputStream(); //TODO:
else
xInStream = m_xPackageStream->getDataStream();
if ( !xInStream.is() )
throw io::IOException();
OInputCompStream* pStream = new OInputCompStream( *this, xInStream, m_aProps );
uno::Reference< io::XStream > xCompStream(
static_cast< ::cppu::OWeakObject* >( pStream ),
uno::UNO_QUERY );
OSL_ENSURE( xCompStream.is(),
"OInputCompStream MUST provide XStream interfaces!\n" );
m_aInputStreamsList.push_back( pStream );
return xCompStream;
}
else if ( ( nStreamMode & embed::ElementModes::ELEMENT_READWRITE ) == embed::ElementModes::ELEMENT_SEEKABLEREAD )
{
uno::Reference< io::XInputStream > xInStream;
xInStream = GetTempFileAsInputStream(); //TODO:
if ( !xInStream.is() )
throw io::IOException();
OInputSeekStream* pStream = new OInputSeekStream( *this, xInStream, m_aProps );
uno::Reference< io::XStream > xSeekStream(
static_cast< ::cppu::OWeakObject* >( pStream ),
uno::UNO_QUERY );
OSL_ENSURE( xSeekStream.is(),
"OInputSeekStream MUST provide XStream interfaces!\n" );
m_aInputStreamsList.push_back( pStream );
return xSeekStream;
}
else if ( ( nStreamMode & embed::ElementModes::ELEMENT_WRITE ) == embed::ElementModes::ELEMENT_WRITE )
{
if ( !m_aInputStreamsList.empty() )
throw io::IOException(); // TODO:
uno::Reference< io::XStream > xStream;
if ( ( nStreamMode & embed::ElementModes::ELEMENT_TRUNCATE ) == embed::ElementModes::ELEMENT_TRUNCATE )
{
if ( m_aTempURL.getLength() )
KillFile( m_aTempURL, GetServiceFactory() );
// open new empty temp file
m_aTempURL = GetNewTempFileURL( GetServiceFactory() );
xStream = GetTempFileAsStream();
}
else
xStream = GetTempFileAsStream();
m_pAntiImpl = new OWriteStream( this, xStream );
uno::Reference< io::XStream > xWriteStream =
uno::Reference< io::XStream >( static_cast< ::cppu::OWeakObject* >( m_pAntiImpl ),
uno::UNO_QUERY );
OSL_ENSURE( xWriteStream.is(), "OWriteStream MUST implement XStream && XComponent interfaces!\n" );
return xWriteStream;
}
throw lang::IllegalArgumentException(); // TODO
// not reachable
return uno::Reference< io::XStream >();
}
//-----------------------------------------------
uno::Reference< io::XInputStream > OWriteStream_Impl::GetRawInStream()
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() ) ;
OSL_ENSURE( m_xPackageStream.is(), "No package stream is set!\n" );
if ( m_pAntiImpl )
throw io::IOException(); // TODO:
OSL_ENSURE( IsEncrypted(), "Impossible to get raw representation for nonencrypted stream!\n" );
if ( !IsEncrypted() )
throw packages::NoEncryptionException();
return m_xPackageStream->getRawStream();
}
//-----------------------------------------------
uno::Sequence< sal_Int8 > OWriteStream_Impl::GetCommonRootPass()
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() ) ;
uno::Reference< beans::XPropertySet > xGlobalPropertySet( m_xPackage, uno::UNO_QUERY );
if ( !xGlobalPropertySet.is() )
throw uno::RuntimeException();
::rtl::OUString aString_EncryptionKey = ::rtl::OUString::createFromAscii( "EncryptionKey" );
uno::Sequence< sal_Int8 > aGlobalKey;
try {
if ( !( xGlobalPropertySet->getPropertyValue( aString_EncryptionKey ) >>= aGlobalKey ) )
throw io::IOException();
}
catch ( uno::Exception& )
{
OSL_ENSURE( sal_False, "Can't read encryption related properties!\n" );
throw io::IOException(); // TODO
}
return aGlobalKey;
}
void OWriteStream_Impl::InputStreamDisposed( OInputCompStream* pStream )
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
m_aInputStreamsList.remove( pStream );
}
//===============================================
// OWriteStream implementation
//===============================================
//-----------------------------------------------
OWriteStream::OWriteStream( OWriteStream_Impl* pImpl, uno::Reference< io::XStream > xStream )
: m_pImpl( pImpl )
, m_bInStreamDisconnected( sal_False )
{
OSL_ENSURE( pImpl && xStream.is(), "No base implementation!\n" );
OSL_ENSURE( m_pImpl->m_rMutexRef.Is(), "No mutex!\n" );
if ( !m_pImpl || !m_pImpl->m_rMutexRef.Is() )
throw uno::RuntimeException(); // just a disaster
m_pData = new WSInternalData_Impl( pImpl->m_rMutexRef );
if ( xStream.is() )
{
m_xInStream = xStream->getInputStream();
m_xOutStream = xStream->getOutputStream();
m_xSeekable = uno::Reference< io::XSeekable >( xStream, uno::UNO_QUERY );
OSL_ENSURE( m_xInStream.is() && m_xOutStream.is() && m_xSeekable.is(), "Stream implementation is incomplete!\n" );
}
}
//-----------------------------------------------
OWriteStream::~OWriteStream()
{
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( m_pImpl )
{
m_refCount++;
try {
dispose();
}
catch( uno::RuntimeException& )
{}
}
}
if ( m_pData )
delete m_pData;
}
void OWriteStream::CopyToStreamInternally_Impl( const uno::Reference< io::XStream >& xDest )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_xInStream.is() )
throw uno::RuntimeException();
if ( !m_xSeekable.is() )
throw uno::RuntimeException();
uno::Reference< beans::XPropertySet > xDestProps( xDest, uno::UNO_QUERY );
if ( !xDestProps.is() )
throw uno::RuntimeException(); //TODO
uno::Reference< io::XOutputStream > xDestOutStream = xDest->getOutputStream();
if ( !xDestOutStream.is() )
throw io::IOException(); // TODO
sal_Int64 nCurPos = m_xSeekable->getPosition();
m_xSeekable->seek( 0 );
uno::Exception eThrown;
sal_Bool bThrown = sal_False;
try {
copyInputToOutput_Impl( m_xInStream, xDestOutStream );
}
catch ( uno::Exception& e )
{
eThrown = e;
bThrown = sal_True;
}
// position-related section below is critical
// if it fails the stream will become invalid
try {
m_xSeekable->seek( nCurPos );
}
catch ( uno::Exception& )
{
// TODO: set the stoream in invalid state or dispose
OSL_ENSURE( sal_False, "The stream become invalid during copiing!\n" );
throw uno::RuntimeException();
}
if ( bThrown )
throw eThrown;
// now the properties can be copied
const char* pStrings[3] = { "MediaType", "Compressed", "Encrypted" };
for ( int ind = 0; ind < 3; ind++ )
{
::rtl::OUString aPropName = ::rtl::OUString::createFromAscii( pStrings[ind] );
xDestProps->setPropertyValue( aPropName, getPropertyValue( aPropName ) );
}
}
//-----------------------------------------------
sal_Int32 SAL_CALL OWriteStream::readBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
throw ( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( !m_xInStream.is() )
throw io::NotConnectedException();
return m_xInStream->readBytes( aData, nBytesToRead );
}
//-----------------------------------------------
sal_Int32 SAL_CALL OWriteStream::readSomeBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
throw ( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( !m_xInStream.is() )
throw io::NotConnectedException();
return m_xInStream->readSomeBytes( aData, nMaxBytesToRead );
}
//-----------------------------------------------
void SAL_CALL OWriteStream::skipBytes( sal_Int32 nBytesToSkip )
throw ( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( !m_xInStream.is() )
throw io::NotConnectedException();
m_xInStream->skipBytes( nBytesToSkip );
}
//-----------------------------------------------
sal_Int32 SAL_CALL OWriteStream::available( )
throw ( io::NotConnectedException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( !m_xInStream.is() )
throw io::NotConnectedException();
return m_xInStream->available();
}
//-----------------------------------------------
void SAL_CALL OWriteStream::closeInput( )
throw ( io::NotConnectedException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( m_bInStreamDisconnected || !m_xInStream.is() )
throw io::NotConnectedException();
// the input part of the stream stays open for internal purposes ( to allow reading during copiing )
// since it can not be reopened until output part is closed, it will be closed with output part.
m_bInStreamDisconnected = sal_True;
// m_xInStream->closeInput();
// m_xInStream = uno::Reference< io::XInputStream >();
if ( !m_xOutStream.is() )
dispose();
}
//-----------------------------------------------
uno::Reference< io::XInputStream > SAL_CALL OWriteStream::getInputStream()
throw ( uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( m_bInStreamDisconnected || !m_xInStream.is() )
return uno::Reference< io::XInputStream >();
return uno::Reference< io::XInputStream >( static_cast< io::XInputStream* >( this ), uno::UNO_QUERY );
}
//-----------------------------------------------
uno::Reference< io::XOutputStream > SAL_CALL OWriteStream::getOutputStream()
throw ( uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( !m_xOutStream.is() )
return uno::Reference< io::XOutputStream >();
return uno::Reference< io::XOutputStream >( static_cast< io::XOutputStream* >( this ), uno::UNO_QUERY );
}
//-----------------------------------------------
void SAL_CALL OWriteStream::writeBytes( const uno::Sequence< sal_Int8 >& aData )
throw ( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( !m_xOutStream.is() )
throw io::NotConnectedException();
m_xOutStream->writeBytes( aData );
m_pImpl->m_bIsModified = sal_True;
m_pImpl->m_pParent->SetModifiedInternally( sal_True );
}
//-----------------------------------------------
void SAL_CALL OWriteStream::flush()
throw ( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( !m_xOutStream.is() )
throw io::NotConnectedException();
m_xOutStream->flush();
}
//-----------------------------------------------
void OWriteStream::CloseOutput_Impl()
{
// all the checks must be done in calling method
m_xOutStream->closeOutput();
m_xOutStream = uno::Reference< io::XOutputStream >();
// after the stream is disposed it can be commited
// so transport correct size property
if ( !m_xSeekable.is() )
throw uno::RuntimeException();
for ( sal_Int32 nInd = 0; nInd < m_pImpl->m_aProps.getLength(); nInd++ )
{
if ( m_pImpl->m_aProps[nInd].Name.equalsAscii( "Size" ) )
m_pImpl->m_aProps[nInd].Value <<= ((sal_Int32)m_xSeekable->getLength());
}
}
//-----------------------------------------------
void SAL_CALL OWriteStream::closeOutput()
throw ( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( !m_xOutStream.is() )
throw io::NotConnectedException();
CloseOutput_Impl();
if ( m_bInStreamDisconnected || !m_xInStream.is() )
dispose();
}
//-----------------------------------------------
void SAL_CALL OWriteStream::seek( sal_Int64 location )
throw ( lang::IllegalArgumentException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( !m_xSeekable.is() )
throw uno::RuntimeException();
m_xSeekable->seek( location );
}
//-----------------------------------------------
sal_Int64 SAL_CALL OWriteStream::getPosition()
throw ( io::IOException,
uno::RuntimeException)
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( !m_xSeekable.is() )
throw uno::RuntimeException();
return m_xSeekable->getPosition();
}
//-----------------------------------------------
sal_Int64 SAL_CALL OWriteStream::getLength()
throw ( io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( !m_xSeekable.is() )
throw uno::RuntimeException();
return m_xSeekable->getLength();
}
//-----------------------------------------------
void SAL_CALL OWriteStream::truncate()
throw ( io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( !m_xOutStream.is() )
throw uno::RuntimeException();
uno::Reference< io::XTruncate > xTruncate( m_xOutStream, uno::UNO_QUERY );
if ( !xTruncate.is() )
{
OSL_ENSURE( sal_False, "The output stream must support XTruncate interface!\n" );
throw uno::RuntimeException();
}
xTruncate->truncate();
m_pImpl->m_bIsModified = sal_True;
m_pImpl->m_pParent->SetModifiedInternally( sal_True );
}
//-----------------------------------------------
void SAL_CALL OWriteStream::dispose()
throw ( uno::RuntimeException )
{
// should be an internal method since it can be called only from parent storage
::osl::MutexGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( m_xOutStream.is() )
CloseOutput_Impl();
if ( m_xInStream.is() )
{
m_xInStream->closeInput();
m_xInStream = uno::Reference< io::XInputStream >();
}
lang::EventObject aSource( static_cast< ::cppu::OWeakObject* >(this) );
m_pData->m_aListenersContainer.disposeAndClear( aSource );
m_pImpl->m_pAntiImpl = NULL;
m_pImpl = NULL;
}
//-----------------------------------------------
void SAL_CALL OWriteStream::addEventListener(
const uno::Reference< lang::XEventListener >& xListener )
throw ( uno::RuntimeException )
{
::osl::MutexGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
m_pData->m_aListenersContainer.addInterface( xListener );
}
//-----------------------------------------------
void SAL_CALL OWriteStream::removeEventListener(
const uno::Reference< lang::XEventListener >& xListener )
throw ( uno::RuntimeException )
{
::osl::MutexGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
m_pData->m_aListenersContainer.removeInterface( xListener );
}
//-----------------------------------------------
void SAL_CALL OWriteStream::setEncryptionKey( const uno::Sequence< sal_Int8 >& aKey )
throw( uno::RuntimeException )
{
::osl::MutexGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
OSL_ENSURE( m_pImpl->m_xPackageStream.is(), "No package stream is set!\n" );
uno::Reference< beans::XPropertySet > xPropertySet( m_pImpl->m_xPackageStream, uno::UNO_QUERY );
if ( !xPropertySet.is() )
throw uno::RuntimeException();
::rtl::OUString aString_EncryptionKey = ::rtl::OUString::createFromAscii( "EncryptionKey" );
try {
xPropertySet->setPropertyValue( aString_EncryptionKey, uno::makeAny( aKey ) );
}
catch ( uno::Exception& )
{
OSL_ENSURE( sal_False, "Can't write encryption related properties!\n" );
throw io::IOException(); // TODO
}
m_pImpl->m_bHasCachedPassword = sal_True;
m_pImpl->m_aKey = aKey;
m_pImpl->m_bIsModified = sal_True;
m_pImpl->m_pParent->SetModifiedInternally( sal_True );
}
//-----------------------------------------------
uno::Reference< beans::XPropertySetInfo > SAL_CALL OWriteStream::getPropertySetInfo()
throw ( uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
//TODO:
return uno::Reference< beans::XPropertySetInfo >();
}
//-----------------------------------------------
void SAL_CALL OWriteStream::setPropertyValue( const ::rtl::OUString& aPropertyName, const uno::Any& aValue )
throw ( beans::UnknownPropertyException,
beans::PropertyVetoException,
lang::IllegalArgumentException,
lang::WrappedTargetException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( aPropertyName.equalsAscii( "MediaType" )
|| aPropertyName.equalsAscii( "Compressed" ) )
{
for ( sal_Int32 nInd = 0; nInd < m_pImpl->m_aProps.getLength(); nInd++ )
{
if ( aPropertyName.equals( m_pImpl->m_aProps[nInd].Name ) )
m_pImpl->m_aProps[nInd].Value = aValue;
}
}
else if ( aPropertyName.equalsAscii( "Encrypted" ) )
{
for ( sal_Int32 nInd = 0; nInd < m_pImpl->m_aProps.getLength(); nInd++ )
{
if ( aPropertyName.equals( m_pImpl->m_aProps[nInd].Name ) )
{
sal_Bool bEncr = sal_False;
if ( aValue >>= bEncr )
{
if ( bEncr )
{
// if the stream is already encrypted, it must have a cached pass
// because it was opened to change this property
if ( !m_pImpl->m_bHasCachedPassword )
{
uno::Sequence< sal_Int8 > aGlobalKey = m_pImpl->GetCommonRootPass();
if ( !aGlobalKey.getLength() )
throw beans::PropertyVetoException(); // TODO
m_pImpl->m_bForceEncrypted = sal_True;
m_pImpl->m_bHasCachedPassword = sal_True;
m_pImpl->m_aKey = aGlobalKey;
}
}
else
{
m_pImpl->GetFilledTempFile(); // the stream is actually changed by removing of encryption
m_pImpl->m_bForceEncrypted = sal_False;
m_pImpl->m_bHasCachedPassword = sal_False;
m_pImpl->m_aKey.realloc( 0 );
}
}
else
throw lang::IllegalArgumentException(); //TODO
m_pImpl->m_aProps[nInd].Value = aValue;
}
}
}
else if ( aPropertyName.equalsAscii( "Size" ) )
throw beans::PropertyVetoException(); // TODO
else
throw beans::UnknownPropertyException(); // TODO
m_pImpl->m_bIsModified = sal_True;
m_pImpl->m_pParent->SetModifiedInternally( sal_True );
}
//-----------------------------------------------
uno::Any SAL_CALL OWriteStream::getPropertyValue( const ::rtl::OUString& aPropertyName )
throw ( beans::UnknownPropertyException,
lang::WrappedTargetException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
if ( aPropertyName.equalsAscii( "MediaType" )
|| aPropertyName.equalsAscii( "Encrypted" )
|| aPropertyName.equalsAscii( "Compressed" ) )
{
for ( sal_Int32 nInd = 0; nInd < m_pImpl->m_aProps.getLength(); nInd++ )
{
if ( aPropertyName.equals( m_pImpl->m_aProps[nInd].Name ) )
return m_pImpl->m_aProps[nInd].Value;
}
}
else if ( aPropertyName.equalsAscii( "Size" ) )
{
if ( !m_xSeekable.is() )
throw uno::RuntimeException();
return uno::makeAny( (sal_Int32)m_xSeekable->getLength() );
}
throw beans::UnknownPropertyException(); // TODO
// not reachable
return uno::Any();
}
//-----------------------------------------------
void SAL_CALL OWriteStream::addPropertyChangeListener(
const ::rtl::OUString& aPropertyName,
const uno::Reference< beans::XPropertyChangeListener >& xListener )
throw ( beans::UnknownPropertyException,
lang::WrappedTargetException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
//TODO:
}
//-----------------------------------------------
void SAL_CALL OWriteStream::removePropertyChangeListener(
const ::rtl::OUString& aPropertyName,
const uno::Reference< beans::XPropertyChangeListener >& aListener )
throw ( beans::UnknownPropertyException,
lang::WrappedTargetException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
//TODO:
}
//-----------------------------------------------
void SAL_CALL OWriteStream::addVetoableChangeListener(
const ::rtl::OUString& PropertyName,
const uno::Reference< beans::XVetoableChangeListener >& aListener )
throw ( beans::UnknownPropertyException,
lang::WrappedTargetException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
//TODO:
}
//-----------------------------------------------
void SAL_CALL OWriteStream::removeVetoableChangeListener(
const ::rtl::OUString& PropertyName,
const uno::Reference< beans::XVetoableChangeListener >& aListener )
throw ( beans::UnknownPropertyException,
lang::WrappedTargetException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_pData->m_rSharedMutexRef->GetMutex() );
if ( !m_pImpl )
throw lang::DisposedException();
//TODO:
}
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