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office-gobmx/package/source/xstor/xfactory.cxx
Oliver Bolte 959c5af635 INTEGRATION: CWS fwkbugfix03 (1.3.30); FILE MERGED 
2004/10/14 12:44:41 as 1.3.30.4: seek to 0 before you request first 4 bytes of the stream
2004/10/12 07:51:34 as 1.3.30.3: dont use in/out parameters if out params are enough
2004/10/11 17:42:41 as 1.3.30.2: RESYNC: (1.3-1.4); FILE MERGED
2004/09/09 08:08:03 mav 1.3.30.1: #i33968# check signature of a stream on opening
2004-11-17 12:41:05 +00:00

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/*************************************************************************
*
* $RCSfile: xfactory.cxx,v $
*
* $Revision: 1.5 $
*
* last change: $Author: obo $ $Date: 2004-11-17 13:41:05 $
*
* 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): _______________________________________
*
*
************************************************************************/
#ifndef _COM_SUN_STAR_UCB_XSIMPLEFILEACCESS_HPP_
#include <com/sun/star/ucb/XSimpleFileAccess.hpp>
#endif
#ifndef _COM_SUN_STAR_EMBED_ELEMENTMODES_HPP_
#include <com/sun/star/embed/ElementModes.hpp>
#endif
#ifndef _COM_SUN_STAR_BEANS_PROPERTYVALUE_HPP_
#include <com/sun/star/beans/PropertyValue.hpp>
#endif
#ifndef _COM_SUN_STAR_IO_XSEEKABLE_HPP_
#include <com/sun/star/io/XSeekable.hpp>
#endif
#include "xfactory.hxx"
#include "xstorage.hxx"
using namespace ::com::sun::star;
//-------------------------------------------------------------------------
sal_Bool CheckPackageSignature_Impl( const uno::Reference< io::XInputStream >& xInputStream,
const uno::Reference< io::XSeekable >& xSeekable )
{
if ( !xInputStream.is() || !xSeekable.is() )
throw uno::RuntimeException();
if ( xSeekable->getLength() )
{
uno::Sequence< sal_Int8 > aData( 4 );
xSeekable->seek( 0 );
sal_Int32 nRead = xInputStream->readBytes( aData, 4 );
xSeekable->seek( 0 );
// TODO/LATER: should the disk spanned files be supported?
// 0x50, 0x4b, 0x07, 0x08
return ( nRead == 4 && aData[0] == 0x50 && aData[1] == 0x4b && aData[2] == 0x03 && aData[3] == 0x04 );
}
else
return sal_True; // allow to create a storage based on empty stream
}
//-------------------------------------------------------------------------
uno::Sequence< ::rtl::OUString > SAL_CALL OStorageFactory::impl_staticGetSupportedServiceNames()
{
uno::Sequence< ::rtl::OUString > aRet(2);
aRet[0] = ::rtl::OUString::createFromAscii("com.sun.star.embed.StorageFactory");
aRet[1] = ::rtl::OUString::createFromAscii("com.sun.star.comp.embed.StorageFactory");
return aRet;
}
//-------------------------------------------------------------------------
::rtl::OUString SAL_CALL OStorageFactory::impl_staticGetImplementationName()
{
return ::rtl::OUString::createFromAscii("com.sun.star.comp.embed.StorageFactory");
}
//-------------------------------------------------------------------------
uno::Reference< uno::XInterface > SAL_CALL OStorageFactory::impl_staticCreateSelfInstance(
const uno::Reference< lang::XMultiServiceFactory >& xServiceManager )
{
return uno::Reference< uno::XInterface >( *new OStorageFactory( xServiceManager ) );
}
//-------------------------------------------------------------------------
uno::Reference< uno::XInterface > SAL_CALL OStorageFactory::createInstance()
throw ( uno::Exception,
uno::RuntimeException )
{
// TODO: reimplement TempStream service to support XStream interface
uno::Reference < io::XStream > xTempStream(
m_xFactory->createInstance( ::rtl::OUString::createFromAscii( "com.sun.star.io.TempFile" ) ),
uno::UNO_QUERY );
if ( !xTempStream.is() )
throw uno::RuntimeException(); // TODO:
return uno::Reference< uno::XInterface >(
static_cast< OWeakObject* >( new OStorage( xTempStream,
embed::ElementModes::READWRITE,
uno::Sequence< beans::PropertyValue >(),
m_xFactory ) ),
uno::UNO_QUERY );
}
//-------------------------------------------------------------------------
uno::Reference< uno::XInterface > SAL_CALL OStorageFactory::createInstanceWithArguments(
const uno::Sequence< uno::Any >& aArguments )
throw ( uno::Exception,
uno::RuntimeException )
{
// The request for storage can be done with up to three arguments
// The first argument specifies a source for the storage
// it can be URL, XStream, XInputStream.
// The second value is a mode the storage should be open in.
// And the third value is a media descriptor.
sal_Int32 nArgNum = aArguments.getLength();
OSL_ENSURE( nArgNum < 4, "Wrong parameter number" );
if ( !nArgNum )
return createInstance();
// first try to retrieve storage open mode if any
// by default the storage will be open in readonly mode
sal_Int32 nStorageMode = embed::ElementModes::READ;
if ( nArgNum >= 2 )
{
if( !( aArguments[1] >>= nStorageMode ) )
{
OSL_ENSURE( sal_False, "Wrong second argument!\n" );
throw uno::Exception(); // TODO: Illegal argument
}
// it's allways possible to read written storage in this implementation
nStorageMode |= embed::ElementModes::READ;
}
// retrieve storage source stream
::rtl::OUString aURL;
uno::Reference< io::XStream > xStream;
uno::Reference< io::XInputStream > xInputStream;
if ( aArguments[0] >>= aURL )
{
if ( !aURL.getLength() )
{
OSL_ENSURE( sal_False, "Empty URL is provided!\n" );
throw uno::Exception(); // TODO: illegal argument
}
if ( aURL.equalsIgnoreAsciiCaseAsciiL( "vnd.sun.star.pkg", 16 ) )
{
OSL_ENSURE( sal_False, "Packages URL's are not valid for storages!\n" ); // ???
throw uno::Exception(); // TODO: illegal argument
}
uno::Reference < ::com::sun::star::ucb::XSimpleFileAccess > xTempAccess(
m_xFactory->createInstance (
::rtl::OUString::createFromAscii( "com.sun.star.ucb.SimpleFileAccess" ) ),
uno::UNO_QUERY );
if ( !xTempAccess.is() )
throw uno::RuntimeException(); // TODO:
if ( nStorageMode & embed::ElementModes::WRITE )
xStream = xTempAccess->openFileReadWrite( aURL );
else
xInputStream = xTempAccess->openFileRead( aURL );
}
else if ( !( aArguments[0] >>= xStream ) && !( aArguments[0] >>= xInputStream ) )
{
OSL_ENSURE( sal_False, "Wrong first argument!\n" );
throw uno::Exception(); // TODO: Illegal argument
}
// retrieve mediadescriptor and set storage properties
uno::Sequence< beans::PropertyValue > aDescr;
uno::Sequence< beans::PropertyValue > aPropsToSet;
if ( nArgNum >= 3 )
{
if( aArguments[2] >>= aDescr )
{
if ( aURL.getLength() )
{
aPropsToSet.realloc(1);
aPropsToSet[0].Name = ::rtl::OUString::createFromAscii( "URL" );
aPropsToSet[0].Value <<= aURL;
}
for ( sal_Int32 nInd = 0, nNumArgs = 1; nInd < aDescr.getLength(); nInd++ )
{
if ( aDescr[nInd].Name.equalsAscii( "InteractionHandler" )
|| aDescr[nInd].Name.equalsAscii( "Password" )
|| aDescr[nInd].Name.equalsAscii( "RepairPackage" )
|| aDescr[nInd].Name.equalsAscii( "StatusIndicator" ) )
// || aDescr[nInd].Name.equalsAscii( "Unpacked" ) // TODO:
{
aPropsToSet.realloc( ++nNumArgs );
aPropsToSet[nNumArgs-1].Name = aDescr[nInd].Name;
aPropsToSet[nNumArgs-1].Value = aDescr[nInd].Value;
}
else
OSL_ENSURE( sal_False, "Unacceptable property, will be ignored!\n" );
}
}
else
{
OSL_ENSURE( sal_False, "Wrong third argument!\n" );
throw uno::Exception(); // TODO: Illegal argument
}
}
// create storage based on source
if ( xInputStream.is() )
{
// if xInputStream is set the storage should be open from it
if ( ( nStorageMode & embed::ElementModes::WRITE ) )
throw uno::Exception(); // TODO: access denied
uno::Reference< io::XSeekable > xSeekable( xInputStream, uno::UNO_QUERY );
if ( !xSeekable.is() )
{
// TODO: wrap stream to let it be seekable
OSL_ENSURE( sal_False, "Nonseekable streams are not supported for now!\n" );
}
if ( !CheckPackageSignature_Impl( xInputStream, xSeekable ) )
throw io::IOException(); // TODO: this is not a package file
return uno::Reference< uno::XInterface >(
static_cast< OWeakObject* >( new OStorage( xInputStream, nStorageMode, aPropsToSet, m_xFactory ) ),
uno::UNO_QUERY );
}
else if ( xStream.is() )
{
if ( ( nStorageMode & embed::ElementModes::WRITE ) && !xStream->getOutputStream().is()
|| !xStream->getInputStream().is() )
throw uno::Exception(); // TODO: access denied
uno::Reference< io::XSeekable > xSeekable( xStream, uno::UNO_QUERY );
if ( !xSeekable.is() )
{
// TODO: wrap stream to let it be seekable
OSL_ENSURE( sal_False, "Nonseekable streams are not supported for now!\n" );
}
if ( !CheckPackageSignature_Impl( xStream->getInputStream(), xSeekable ) )
throw io::IOException(); // TODO: this is not a package file
return uno::Reference< uno::XInterface >(
static_cast< OWeakObject* >( new OStorage( xStream, nStorageMode, aPropsToSet, m_xFactory ) ),
uno::UNO_QUERY );
}
throw uno::Exception(); // general error during creation
// not reachable
return uno::Reference< uno::XInterface >();
}
//-------------------------------------------------------------------------
::rtl::OUString SAL_CALL OStorageFactory::getImplementationName()
throw ( uno::RuntimeException )
{
return impl_staticGetImplementationName();
}
//-------------------------------------------------------------------------
sal_Bool SAL_CALL OStorageFactory::supportsService( const ::rtl::OUString& ServiceName )
throw ( uno::RuntimeException )
{
uno::Sequence< ::rtl::OUString > aSeq = impl_staticGetSupportedServiceNames();
for ( sal_Int32 nInd = 0; nInd < aSeq.getLength(); nInd++ )
if ( ServiceName.compareTo( aSeq[nInd] ) == 0 )
return sal_True;
return sal_False;
}
//-------------------------------------------------------------------------
uno::Sequence< ::rtl::OUString > SAL_CALL OStorageFactory::getSupportedServiceNames()
throw ( uno::RuntimeException )
{
return impl_staticGetSupportedServiceNames();
}
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