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/*************************************************************************
*
* $RCSfile: xmlstreamio.cxx,v $
*
* $Revision: 1.1.1.1 $
*
* last change: $Author: mt $ $Date: 2004-07-12 13:15:21 $
*
* 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): _______________________________________
*
*
************************************************************************/
/*
* Implementation of the I/O interfaces based on stream and URI binding
*/
#ifndef _XMLSTREAMIO_XMLSECIMPL_HXX_
#include "xmlstreamio.hxx"
#endif
#ifndef _RTL_USTRING_HXX_
#include <rtl/ustring.hxx>
#endif
#include <libxml/uri.h>
#include <xmlsec/io.h>
#define XMLSTREAMIO_INITIALIZED 0x01
#define XMLSTREAMIO_REGISTERED 0x02
/* Global variables */
/*-
* Enable stream I/O or not.
*/
static char enableXmlStreamIO = 0x00 ;
::com::sun::star::uno::Reference< ::com::sun::star::xml::crypto::XUriBinding > m_xUriBinding ;
int xmlStreamMatch( const char* uri )
{
::com::sun::star::uno::Reference< com::sun::star::io::XInputStream > xInputStream ;
if( ( enableXmlStreamIO & XMLSTREAMIO_INITIALIZED ) &&
( enableXmlStreamIO & XMLSTREAMIO_REGISTERED ) ) {
if( uri == NULL || !m_xUriBinding.is() )
return 0 ;
xInputStream = m_xUriBinding->getUriBinding( ::rtl::OUString::createFromAscii( uri ) ) ;
if( xInputStream.is() )
return 1 ;
}
return 0 ;
}
void* xmlStreamOpen( const char* uri )
{
::com::sun::star::uno::Reference< com::sun::star::io::XInputStream > xInputStream ;
::com::sun::star::io::XInputStream* pInputStream ;
if( ( enableXmlStreamIO & XMLSTREAMIO_INITIALIZED ) &&
( enableXmlStreamIO & XMLSTREAMIO_REGISTERED ) ) {
if( uri == NULL || !m_xUriBinding.is() )
return NULL ;
xInputStream = m_xUriBinding->getUriBinding( ::rtl::OUString::createFromAscii( uri ) ) ;
if( xInputStream.is() ) {
pInputStream = xInputStream.get() ;
pInputStream->acquire() ;
return ( void* )pInputStream ;
}
}
return NULL ;
}
int xmlStreamRead( void* context, char* buffer, int len )
{
int numbers ;
::com::sun::star::uno::Reference< com::sun::star::io::XInputStream > xInputStream ;
::com::sun::star::uno::Sequence< sal_Int8 > outSeqs( len ) ;
numbers = 0 ;
if( ( enableXmlStreamIO & XMLSTREAMIO_INITIALIZED ) &&
( enableXmlStreamIO & XMLSTREAMIO_REGISTERED ) ) {
if( context != NULL ) {
xInputStream = ( com::sun::star::io::XInputStream* )context ;
if( !xInputStream.is() )
return 0 ;
numbers = xInputStream->readBytes( outSeqs, len ) ;
const sal_Int8* readBytes = ( const sal_Int8* )outSeqs.getArray() ;
for( int i = 0 ; i < numbers ; i ++ )
*( buffer + i ) = *( readBytes + i ) ;
}
}
return numbers ;
}
int xmlStreamClose( void * context )
{
::com::sun::star::io::XInputStream* pInputStream ;
if( ( enableXmlStreamIO & XMLSTREAMIO_INITIALIZED ) &&
( enableXmlStreamIO & XMLSTREAMIO_REGISTERED ) ) {
if( context != NULL ) {
pInputStream = ( ::com::sun::star::io::XInputStream* )context ;
pInputStream->release() ;
}
}
return 0 ;
}
int xmlEnableStreamInputCallbacks()
{
int cbs = 0 ;
if( !( enableXmlStreamIO & XMLSTREAMIO_INITIALIZED ) ) {
//Register the callbacks into libxml2
//cbs = xmlRegisterInputCallbacks(
// xmlStreamMatch,
// xmlStreamOpen,
// xmlStreamRead,
// xmlStreamClose ) ;
//if( cbs < 0 ) {
// return -1 ;
//}
//Register the callbacks into xmlSec
//In order to make the xmlsec io finding the callbacks firstly,
//I put the callbacks at the very begining.
//Cleanup the older callbacks.
//Notes: all none default callbacks will lose.
xmlSecIOCleanupCallbacks() ;
//Register my classbacks.
cbs = xmlSecIORegisterCallbacks(
xmlStreamMatch,
xmlStreamOpen,
xmlStreamRead,
xmlStreamClose ) ;
if( cbs < 0 ) {
return -1 ;
}
//Register the default callbacks.
//Notes: the error will cause xmlsec working problems.
cbs = xmlSecIORegisterDefaultCallbacks() ;
if( cbs < 0 ) {
return -1 ;
}
enableXmlStreamIO |= XMLSTREAMIO_INITIALIZED ;
}
return 0 ;
}
int xmlRegisterStreamInputCallbacks(
::com::sun::star::uno::Reference< ::com::sun::star::xml::crypto::XUriBinding >& aUriBinding
) {
if( !( enableXmlStreamIO & XMLSTREAMIO_INITIALIZED ) ) {
if( xmlEnableStreamInputCallbacks() < 0 )
return -1 ;
}
if( !( enableXmlStreamIO & XMLSTREAMIO_REGISTERED ) ) {
enableXmlStreamIO |= XMLSTREAMIO_REGISTERED ;
}
m_xUriBinding = aUriBinding ;
return 0 ;
}
int xmlUnregisterStreamInputCallbacks( void )
{
if( ( enableXmlStreamIO & XMLSTREAMIO_REGISTERED ) ) {
//Clear the uir-stream binding
m_xUriBinding.clear() ;
//disable the registered flag
enableXmlStreamIO &= ~XMLSTREAMIO_REGISTERED ;
}
return 0 ;
}
void xmlDisableStreamInputCallbacks() {
xmlUnregisterStreamInputCallbacks() ;
enableXmlStreamIO &= ~XMLSTREAMIO_INITIALIZED ;
}
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