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246 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include <config_lgpl.h>
#include <string.h>
#include <ne_xml.h>
#include "LockEntrySequence.hxx"
#include <memory>
using namespace webdav_ucp;
using namespace com::sun::star;
namespace {
struct LockEntrySequenceParseContext
{
std::unique_ptr<ucb::LockEntry> pEntry;
bool hasScope;
bool hasType;
LockEntrySequenceParseContext()
: hasScope( false ), hasType( false ) {}
};
}
#define STATE_TOP (1)
#define STATE_LOCKENTRY (STATE_TOP)
#define STATE_LOCKSCOPE (STATE_TOP + 1)
#define STATE_EXCLUSIVE (STATE_TOP + 2)
#define STATE_SHARED (STATE_TOP + 3)
#define STATE_LOCKTYPE (STATE_TOP + 4)
#define STATE_WRITE (STATE_TOP + 5)
extern "C" {
static int LockEntrySequence_startelement_callback(
void *,
int parent,
const char * /*nspace*/,
const char *name,
const char ** )
{
if ( name != nullptr )
{
switch ( parent )
{
case NE_XML_STATEROOT:
if ( strcmp( name, "lockentry" ) == 0 )
return STATE_LOCKENTRY;
break;
case STATE_LOCKENTRY:
if ( strcmp( name, "lockscope" ) == 0 )
return STATE_LOCKSCOPE;
else if ( strcmp( name, "locktype" ) == 0 )
return STATE_LOCKTYPE;
#define IIS_BUGS_WORKAROUND
#ifdef IIS_BUGS_WORKAROUND
/* IIS (6) returns XML violating RFC 4918
for DAV:supportedlock property value.
<lockentry>
<write></write>
<shared></shared>
</lockentry>
<lockentry>
<write></write>
<exclusive></exclusive>
</lockentry>
Bother...
*/
else if ( strcmp( name, "exclusive" ) == 0 )
return STATE_EXCLUSIVE;
else if ( strcmp( name, "shared" ) == 0 )<--- Assuming condition 'strcmp(name,"shared")==0' is false
return STATE_SHARED;
else if ( strcmp( name, "write" ) == 0 )
return STATE_WRITE;
#endif
break;
case STATE_LOCKSCOPE:
if ( strcmp( name, "exclusive" ) == 0 )
return STATE_EXCLUSIVE;
else if ( strcmp( name, "shared" ) == 0 )<--- Condition 'strcmp(name,"shared")==0' is always false
return STATE_SHARED;
break;
case STATE_LOCKTYPE:
if ( strcmp( name, "write" ) == 0 )
return STATE_WRITE;
break;
}
}
return NE_XML_DECLINE;
}
static int LockEntrySequence_chardata_callback(
void *,
int,
const char *,
size_t )
{
return 0; // zero to continue, non-zero to abort parsing
}
static int LockEntrySequence_endelement_callback(
void *userdata,
int state,
const char *,
const char * )
{
LockEntrySequenceParseContext * pCtx
= static_cast< LockEntrySequenceParseContext * >( userdata );
if ( !pCtx->pEntry )
pCtx->pEntry.reset( new ucb::LockEntry );
switch ( state )
{
case STATE_EXCLUSIVE:
pCtx->pEntry->Scope = ucb::LockScope_EXCLUSIVE;
pCtx->hasScope = true;
break;
case STATE_SHARED:
pCtx->pEntry->Scope = ucb::LockScope_SHARED;
pCtx->hasScope = true;
break;
case STATE_WRITE:
pCtx->pEntry->Type = ucb::LockType_WRITE;
pCtx->hasType = true;
break;
case STATE_LOCKSCOPE:
if ( !pCtx->hasScope )
return 1; // abort
break;
case STATE_LOCKTYPE:
if ( !pCtx->hasType )
return 1; // abort
break;
case STATE_LOCKENTRY:
if ( !pCtx->hasType || !pCtx->hasScope )
return 1; // abort
break;
default:
break;
}
return 0; // zero to continue, non-zero to abort parsing
}
}
// static
bool LockEntrySequence::createFromXML( const OString & rInData,
uno::Sequence<
ucb::LockEntry > & rOutData )
{
const sal_Int32 TOKEN_LENGTH = 12; // </lockentry>
bool success = true;
// rInData may contain multiple <lockentry>...</lockentry> tags.
sal_Int32 nCount = 0;
sal_Int32 nStart = 0;
sal_Int32 nEnd = rInData.indexOf( "</lockentry>" );
while ( nEnd > -1 )
{
ne_xml_parser * parser = ne_xml_create();
if ( !parser )
{
success = false;
break;
}
LockEntrySequenceParseContext aCtx;
ne_xml_push_handler( parser,
LockEntrySequence_startelement_callback,
LockEntrySequence_chardata_callback,
LockEntrySequence_endelement_callback,
&aCtx );
ne_xml_parse( parser,
rInData.getStr() + nStart,
nEnd - nStart + TOKEN_LENGTH );
success = !ne_xml_failed( parser );
ne_xml_destroy( parser );
if ( !success )
break;
if ( aCtx.pEntry )
{
nCount++;
if ( nCount > rOutData.getLength() )
rOutData.realloc( rOutData.getLength() + 2 );
rOutData[ nCount - 1 ] = *aCtx.pEntry;
}
nStart = nEnd + TOKEN_LENGTH;
nEnd = rInData.indexOf( "</lockentry>", nStart );
}
rOutData.realloc( nCount );
return success;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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