307 lines
12 KiB
C++
307 lines
12 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: xfactory.cxx,v $
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*
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* $Revision: 1.6 $
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*
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* last change: $Author: rt $ $Date: 2005-09-08 16:08:46 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#ifndef _COM_SUN_STAR_UCB_XSIMPLEFILEACCESS_HPP_
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#include <com/sun/star/ucb/XSimpleFileAccess.hpp>
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#endif
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#ifndef _COM_SUN_STAR_EMBED_ELEMENTMODES_HPP_
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#include <com/sun/star/embed/ElementModes.hpp>
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#endif
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#ifndef _COM_SUN_STAR_BEANS_PROPERTYVALUE_HPP_
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#include <com/sun/star/beans/PropertyValue.hpp>
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#endif
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#ifndef _COM_SUN_STAR_IO_XSEEKABLE_HPP_
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#include <com/sun/star/io/XSeekable.hpp>
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#endif
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#include "xfactory.hxx"
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#include "xstorage.hxx"
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using namespace ::com::sun::star;
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//-------------------------------------------------------------------------
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sal_Bool CheckPackageSignature_Impl( const uno::Reference< io::XInputStream >& xInputStream,
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const uno::Reference< io::XSeekable >& xSeekable )
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{
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if ( !xInputStream.is() || !xSeekable.is() )
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throw uno::RuntimeException();
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if ( xSeekable->getLength() )
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{
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uno::Sequence< sal_Int8 > aData( 4 );
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xSeekable->seek( 0 );
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sal_Int32 nRead = xInputStream->readBytes( aData, 4 );
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xSeekable->seek( 0 );
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// TODO/LATER: should the disk spanned files be supported?
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// 0x50, 0x4b, 0x07, 0x08
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return ( nRead == 4 && aData[0] == 0x50 && aData[1] == 0x4b && aData[2] == 0x03 && aData[3] == 0x04 );
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}
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else
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return sal_True; // allow to create a storage based on empty stream
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}
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//-------------------------------------------------------------------------
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uno::Sequence< ::rtl::OUString > SAL_CALL OStorageFactory::impl_staticGetSupportedServiceNames()
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{
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uno::Sequence< ::rtl::OUString > aRet(2);
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aRet[0] = ::rtl::OUString::createFromAscii("com.sun.star.embed.StorageFactory");
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aRet[1] = ::rtl::OUString::createFromAscii("com.sun.star.comp.embed.StorageFactory");
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return aRet;
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}
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//-------------------------------------------------------------------------
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::rtl::OUString SAL_CALL OStorageFactory::impl_staticGetImplementationName()
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{
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return ::rtl::OUString::createFromAscii("com.sun.star.comp.embed.StorageFactory");
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}
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//-------------------------------------------------------------------------
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uno::Reference< uno::XInterface > SAL_CALL OStorageFactory::impl_staticCreateSelfInstance(
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const uno::Reference< lang::XMultiServiceFactory >& xServiceManager )
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{
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return uno::Reference< uno::XInterface >( *new OStorageFactory( xServiceManager ) );
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}
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//-------------------------------------------------------------------------
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uno::Reference< uno::XInterface > SAL_CALL OStorageFactory::createInstance()
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throw ( uno::Exception,
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uno::RuntimeException )
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{
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// TODO: reimplement TempStream service to support XStream interface
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uno::Reference < io::XStream > xTempStream(
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m_xFactory->createInstance( ::rtl::OUString::createFromAscii( "com.sun.star.io.TempFile" ) ),
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uno::UNO_QUERY );
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if ( !xTempStream.is() )
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throw uno::RuntimeException(); // TODO:
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return uno::Reference< uno::XInterface >(
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static_cast< OWeakObject* >( new OStorage( xTempStream,
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embed::ElementModes::READWRITE,
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uno::Sequence< beans::PropertyValue >(),
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m_xFactory ) ),
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uno::UNO_QUERY );
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}
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//-------------------------------------------------------------------------
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uno::Reference< uno::XInterface > SAL_CALL OStorageFactory::createInstanceWithArguments(
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const uno::Sequence< uno::Any >& aArguments )
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throw ( uno::Exception,
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uno::RuntimeException )
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{
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// The request for storage can be done with up to three arguments
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// The first argument specifies a source for the storage
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// it can be URL, XStream, XInputStream.
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// The second value is a mode the storage should be open in.
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// And the third value is a media descriptor.
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sal_Int32 nArgNum = aArguments.getLength();
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OSL_ENSURE( nArgNum < 4, "Wrong parameter number" );
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if ( !nArgNum )
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return createInstance();
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// first try to retrieve storage open mode if any
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// by default the storage will be open in readonly mode
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sal_Int32 nStorageMode = embed::ElementModes::READ;
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if ( nArgNum >= 2 )
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{
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if( !( aArguments[1] >>= nStorageMode ) )
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{
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OSL_ENSURE( sal_False, "Wrong second argument!\n" );
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throw uno::Exception(); // TODO: Illegal argument
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}
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// it's allways possible to read written storage in this implementation
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nStorageMode |= embed::ElementModes::READ;
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}
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// retrieve storage source stream
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::rtl::OUString aURL;
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uno::Reference< io::XStream > xStream;
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uno::Reference< io::XInputStream > xInputStream;
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if ( aArguments[0] >>= aURL )
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{
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if ( !aURL.getLength() )
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{
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OSL_ENSURE( sal_False, "Empty URL is provided!\n" );
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throw uno::Exception(); // TODO: illegal argument
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}
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if ( aURL.equalsIgnoreAsciiCaseAsciiL( "vnd.sun.star.pkg", 16 ) )
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{
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OSL_ENSURE( sal_False, "Packages URL's are not valid for storages!\n" ); // ???
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throw uno::Exception(); // TODO: illegal argument
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}
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uno::Reference < ::com::sun::star::ucb::XSimpleFileAccess > xTempAccess(
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m_xFactory->createInstance (
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::rtl::OUString::createFromAscii( "com.sun.star.ucb.SimpleFileAccess" ) ),
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uno::UNO_QUERY );
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if ( !xTempAccess.is() )
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throw uno::RuntimeException(); // TODO:
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if ( nStorageMode & embed::ElementModes::WRITE )
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xStream = xTempAccess->openFileReadWrite( aURL );
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else
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xInputStream = xTempAccess->openFileRead( aURL );
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}
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else if ( !( aArguments[0] >>= xStream ) && !( aArguments[0] >>= xInputStream ) )
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{
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OSL_ENSURE( sal_False, "Wrong first argument!\n" );
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throw uno::Exception(); // TODO: Illegal argument
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}
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// retrieve mediadescriptor and set storage properties
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uno::Sequence< beans::PropertyValue > aDescr;
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uno::Sequence< beans::PropertyValue > aPropsToSet;
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if ( nArgNum >= 3 )
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{
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if( aArguments[2] >>= aDescr )
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{
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if ( aURL.getLength() )
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{
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aPropsToSet.realloc(1);
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aPropsToSet[0].Name = ::rtl::OUString::createFromAscii( "URL" );
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aPropsToSet[0].Value <<= aURL;
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}
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for ( sal_Int32 nInd = 0, nNumArgs = 1; nInd < aDescr.getLength(); nInd++ )
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{
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if ( aDescr[nInd].Name.equalsAscii( "InteractionHandler" )
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|| aDescr[nInd].Name.equalsAscii( "Password" )
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|| aDescr[nInd].Name.equalsAscii( "RepairPackage" )
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|| aDescr[nInd].Name.equalsAscii( "StatusIndicator" ) )
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// || aDescr[nInd].Name.equalsAscii( "Unpacked" ) // TODO:
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{
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aPropsToSet.realloc( ++nNumArgs );
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aPropsToSet[nNumArgs-1].Name = aDescr[nInd].Name;
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aPropsToSet[nNumArgs-1].Value = aDescr[nInd].Value;
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}
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else
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OSL_ENSURE( sal_False, "Unacceptable property, will be ignored!\n" );
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}
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}
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else
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{
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OSL_ENSURE( sal_False, "Wrong third argument!\n" );
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throw uno::Exception(); // TODO: Illegal argument
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}
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}
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// create storage based on source
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if ( xInputStream.is() )
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{
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// if xInputStream is set the storage should be open from it
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if ( ( nStorageMode & embed::ElementModes::WRITE ) )
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throw uno::Exception(); // TODO: access denied
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uno::Reference< io::XSeekable > xSeekable( xInputStream, uno::UNO_QUERY );
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if ( !xSeekable.is() )
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{
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// TODO: wrap stream to let it be seekable
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OSL_ENSURE( sal_False, "Nonseekable streams are not supported for now!\n" );
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}
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if ( !CheckPackageSignature_Impl( xInputStream, xSeekable ) )
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throw io::IOException(); // TODO: this is not a package file
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return uno::Reference< uno::XInterface >(
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static_cast< OWeakObject* >( new OStorage( xInputStream, nStorageMode, aPropsToSet, m_xFactory ) ),
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uno::UNO_QUERY );
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}
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else if ( xStream.is() )
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{
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if ( ( nStorageMode & embed::ElementModes::WRITE ) && !xStream->getOutputStream().is()
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|| !xStream->getInputStream().is() )
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throw uno::Exception(); // TODO: access denied
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uno::Reference< io::XSeekable > xSeekable( xStream, uno::UNO_QUERY );
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if ( !xSeekable.is() )
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{
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// TODO: wrap stream to let it be seekable
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OSL_ENSURE( sal_False, "Nonseekable streams are not supported for now!\n" );
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}
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if ( !CheckPackageSignature_Impl( xStream->getInputStream(), xSeekable ) )
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throw io::IOException(); // TODO: this is not a package file
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return uno::Reference< uno::XInterface >(
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static_cast< OWeakObject* >( new OStorage( xStream, nStorageMode, aPropsToSet, m_xFactory ) ),
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uno::UNO_QUERY );
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}
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throw uno::Exception(); // general error during creation
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// not reachable
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return uno::Reference< uno::XInterface >();
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}
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//-------------------------------------------------------------------------
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::rtl::OUString SAL_CALL OStorageFactory::getImplementationName()
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throw ( uno::RuntimeException )
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{
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return impl_staticGetImplementationName();
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}
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//-------------------------------------------------------------------------
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sal_Bool SAL_CALL OStorageFactory::supportsService( const ::rtl::OUString& ServiceName )
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throw ( uno::RuntimeException )
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{
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uno::Sequence< ::rtl::OUString > aSeq = impl_staticGetSupportedServiceNames();
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for ( sal_Int32 nInd = 0; nInd < aSeq.getLength(); nInd++ )
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if ( ServiceName.compareTo( aSeq[nInd] ) == 0 )
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return sal_True;
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return sal_False;
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}
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//-------------------------------------------------------------------------
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uno::Sequence< ::rtl::OUString > SAL_CALL OStorageFactory::getSupportedServiceNames()
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throw ( uno::RuntimeException )
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{
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return impl_staticGetSupportedServiceNames();
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}
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