245 lines
7.4 KiB
C++
245 lines
7.4 KiB
C++
/*************************************************************************
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*
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* $RCSfile: xmlstreamio.cxx,v $
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*
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* $Revision: 1.1.1.1 $
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*
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* last change: $Author: mt $ $Date: 2004-07-12 13:15:21 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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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 2000 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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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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/*
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* Implementation of the I/O interfaces based on stream and URI binding
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*/
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#ifndef _XMLSTREAMIO_XMLSECIMPL_HXX_
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#include "xmlstreamio.hxx"
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#endif
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#ifndef _RTL_USTRING_HXX_
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#include <rtl/ustring.hxx>
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#endif
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#include <libxml/uri.h>
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#include <xmlsec/io.h>
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#define XMLSTREAMIO_INITIALIZED 0x01
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#define XMLSTREAMIO_REGISTERED 0x02
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/* Global variables */
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/*-
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* Enable stream I/O or not.
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*/
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static char enableXmlStreamIO = 0x00 ;
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::com::sun::star::uno::Reference< ::com::sun::star::xml::crypto::XUriBinding > m_xUriBinding ;
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int xmlStreamMatch( const char* uri )
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{
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::com::sun::star::uno::Reference< com::sun::star::io::XInputStream > xInputStream ;
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if( ( enableXmlStreamIO & XMLSTREAMIO_INITIALIZED ) &&
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( enableXmlStreamIO & XMLSTREAMIO_REGISTERED ) ) {
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if( uri == NULL || !m_xUriBinding.is() )
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return 0 ;
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xInputStream = m_xUriBinding->getUriBinding( ::rtl::OUString::createFromAscii( uri ) ) ;
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if( xInputStream.is() )
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return 1 ;
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}
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return 0 ;
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}
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void* xmlStreamOpen( const char* uri )
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{
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::com::sun::star::uno::Reference< com::sun::star::io::XInputStream > xInputStream ;
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::com::sun::star::io::XInputStream* pInputStream ;
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if( ( enableXmlStreamIO & XMLSTREAMIO_INITIALIZED ) &&
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( enableXmlStreamIO & XMLSTREAMIO_REGISTERED ) ) {
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if( uri == NULL || !m_xUriBinding.is() )
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return NULL ;
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xInputStream = m_xUriBinding->getUriBinding( ::rtl::OUString::createFromAscii( uri ) ) ;
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if( xInputStream.is() ) {
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pInputStream = xInputStream.get() ;
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pInputStream->acquire() ;
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return ( void* )pInputStream ;
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}
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}
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return NULL ;
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}
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int xmlStreamRead( void* context, char* buffer, int len )
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{
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int numbers ;
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::com::sun::star::uno::Reference< com::sun::star::io::XInputStream > xInputStream ;
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::com::sun::star::uno::Sequence< sal_Int8 > outSeqs( len ) ;
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numbers = 0 ;
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if( ( enableXmlStreamIO & XMLSTREAMIO_INITIALIZED ) &&
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( enableXmlStreamIO & XMLSTREAMIO_REGISTERED ) ) {
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if( context != NULL ) {
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xInputStream = ( com::sun::star::io::XInputStream* )context ;
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if( !xInputStream.is() )
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return 0 ;
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numbers = xInputStream->readBytes( outSeqs, len ) ;
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const sal_Int8* readBytes = ( const sal_Int8* )outSeqs.getArray() ;
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for( int i = 0 ; i < numbers ; i ++ )
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*( buffer + i ) = *( readBytes + i ) ;
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}
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}
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return numbers ;
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}
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int xmlStreamClose( void * context )
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{
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::com::sun::star::io::XInputStream* pInputStream ;
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if( ( enableXmlStreamIO & XMLSTREAMIO_INITIALIZED ) &&
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( enableXmlStreamIO & XMLSTREAMIO_REGISTERED ) ) {
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if( context != NULL ) {
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pInputStream = ( ::com::sun::star::io::XInputStream* )context ;
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pInputStream->release() ;
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}
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}
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return 0 ;
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}
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int xmlEnableStreamInputCallbacks()
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{
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int cbs = 0 ;
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if( !( enableXmlStreamIO & XMLSTREAMIO_INITIALIZED ) ) {
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//Register the callbacks into libxml2
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//cbs = xmlRegisterInputCallbacks(
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// xmlStreamMatch,
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// xmlStreamOpen,
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// xmlStreamRead,
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// xmlStreamClose ) ;
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//if( cbs < 0 ) {
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// return -1 ;
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//}
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//Register the callbacks into xmlSec
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//In order to make the xmlsec io finding the callbacks firstly,
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//I put the callbacks at the very begining.
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//Cleanup the older callbacks.
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//Notes: all none default callbacks will lose.
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xmlSecIOCleanupCallbacks() ;
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//Register my classbacks.
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cbs = xmlSecIORegisterCallbacks(
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xmlStreamMatch,
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xmlStreamOpen,
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xmlStreamRead,
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xmlStreamClose ) ;
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if( cbs < 0 ) {
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return -1 ;
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}
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//Register the default callbacks.
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//Notes: the error will cause xmlsec working problems.
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cbs = xmlSecIORegisterDefaultCallbacks() ;
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if( cbs < 0 ) {
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return -1 ;
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}
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enableXmlStreamIO |= XMLSTREAMIO_INITIALIZED ;
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}
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return 0 ;
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}
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int xmlRegisterStreamInputCallbacks(
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::com::sun::star::uno::Reference< ::com::sun::star::xml::crypto::XUriBinding >& aUriBinding
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) {
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if( !( enableXmlStreamIO & XMLSTREAMIO_INITIALIZED ) ) {
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if( xmlEnableStreamInputCallbacks() < 0 )
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return -1 ;
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}
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if( !( enableXmlStreamIO & XMLSTREAMIO_REGISTERED ) ) {
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enableXmlStreamIO |= XMLSTREAMIO_REGISTERED ;
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}
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m_xUriBinding = aUriBinding ;
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return 0 ;
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}
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int xmlUnregisterStreamInputCallbacks( void )
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{
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if( ( enableXmlStreamIO & XMLSTREAMIO_REGISTERED ) ) {
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//Clear the uir-stream binding
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m_xUriBinding.clear() ;
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//disable the registered flag
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enableXmlStreamIO &= ~XMLSTREAMIO_REGISTERED ;
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}
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return 0 ;
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}
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void xmlDisableStreamInputCallbacks() {
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xmlUnregisterStreamInputCallbacks() ;
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enableXmlStreamIO &= ~XMLSTREAMIO_INITIALIZED ;
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}
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