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Diffstat (limited to 'ucb/source/ucp/webdav/LinkSequence.cxx')
| -rw-r--r-- | ucb/source/ucp/webdav/LinkSequence.cxx | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/ucb/source/ucp/webdav/LinkSequence.cxx b/ucb/source/ucp/webdav/LinkSequence.cxx new file mode 100644 index 000000000000..39d8d9cecc38 --- /dev/null +++ b/ucb/source/ucp/webdav/LinkSequence.cxx @@ -0,0 +1,223 @@ +/************************************************************************* + * + * 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. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_ucb.hxx" + +#include <string.h> +#include <ne_xml.h> + +#ifndef _LINKSEQUENCE_HXX_ +#include "LinkSequence.hxx" +#endif + +using namespace webdav_ucp; +using namespace com::sun::star; + +////////////////////////////////////////////////////////////////////////// + +struct LinkSequenceParseContext +{ + ucb::Link * pLink; + bool hasSource; + bool hasDestination; + + LinkSequenceParseContext() + : pLink( 0 ), hasSource( false ), hasDestination( false ) {} + ~LinkSequenceParseContext() { delete pLink; } +}; + +#define STATE_TOP (1) + +#define STATE_LINK (STATE_TOP) +#define STATE_DST (STATE_TOP + 1) +#define STATE_SRC (STATE_TOP + 2) + +////////////////////////////////////////////////////////////////////////// +extern "C" int LinkSequence_startelement_callback( + void *, + int parent, + const char * /*nspace*/, + const char *name, + const char ** ) +{ + if ( name != 0 ) + { + switch ( parent ) + { + case NE_XML_STATEROOT: + if ( strcmp( name, "link" ) == 0 ) + return STATE_LINK; + break; + + case STATE_LINK: + if ( strcmp( name, "dst" ) == 0 ) + return STATE_DST; + else if ( strcmp( name, "src" ) == 0 ) + return STATE_SRC; + break; + } + } + return NE_XML_DECLINE; +} + +////////////////////////////////////////////////////////////////////////// +extern "C" int LinkSequence_chardata_callback( + void *userdata, + int state, + const char *buf, + size_t len ) +{ + LinkSequenceParseContext * pCtx + = static_cast< LinkSequenceParseContext * >( userdata ); + if ( !pCtx->pLink ) + pCtx->pLink = new ucb::Link; + + switch ( state ) + { + case STATE_DST: + pCtx->pLink->Destination + = rtl::OUString( buf, len, RTL_TEXTENCODING_ASCII_US ); + pCtx->hasDestination = true; + break; + + case STATE_SRC: + pCtx->pLink->Source + = rtl::OUString( buf, len, RTL_TEXTENCODING_ASCII_US ); + pCtx->hasSource = true; + break; + } + return 0; // zero to continue, non-zero to abort parsing +} + +////////////////////////////////////////////////////////////////////////// +extern "C" int LinkSequence_endelement_callback( + void *userdata, + int state, + const char *, + const char * ) +{ + LinkSequenceParseContext * pCtx + = static_cast< LinkSequenceParseContext * >( userdata ); + if ( !pCtx->pLink ) + pCtx->pLink = new ucb::Link; + + switch ( state ) + { + case STATE_LINK: + if ( !pCtx->hasDestination || !pCtx->hasSource ) + return 1; // abort + break; + } + return 0; // zero to continue, non-zero to abort parsing +} + +////////////////////////////////////////////////////////////////////////// +// static +bool LinkSequence::createFromXML( const rtl::OString & rInData, + uno::Sequence< ucb::Link > & rOutData ) +{ + const sal_Int32 TOKEN_LENGTH = 7; // </link> + bool success = true; + + // rInData may contain multiple <link>...</link> tags. + sal_Int32 nCount = 0; + sal_Int32 nStart = 0; + sal_Int32 nEnd = rInData.indexOf( "</link>" ); + while ( nEnd > -1 ) + { + ne_xml_parser * parser = ne_xml_create(); + if ( !parser ) + { + success = false; + break; + } + + LinkSequenceParseContext aCtx; + ne_xml_push_handler( parser, + LinkSequence_startelement_callback, + LinkSequence_chardata_callback, + LinkSequence_endelement_callback, + &aCtx ); + + ne_xml_parse( parser, + rInData.getStr() + nStart, + nEnd - nStart + TOKEN_LENGTH ); + +#if NEON_VERSION >= 0x0250 + success = !ne_xml_failed( parser ); +#else + success = !!ne_xml_valid( parser ); +#endif + + ne_xml_destroy( parser ); + + if ( !success ) + break; + + if ( aCtx.pLink ) + { + nCount++; + if ( nCount > rOutData.getLength() ) + rOutData.realloc( rOutData.getLength() + 1 ); + + rOutData[ nCount - 1 ] = *aCtx.pLink; + } + + nStart = nEnd + TOKEN_LENGTH; + nEnd = rInData.indexOf( "</link>", nStart ); + } + + return success; +} + +////////////////////////////////////////////////////////////////////////// +// static +bool LinkSequence::toXML( const uno::Sequence< ucb::Link > & rInData, + rtl::OUString & rOutData ) +{ + // <link><src>value</src><dst>value</dst></link><link><src>.... + + sal_Int32 nCount = rInData.getLength(); + if ( nCount ) + { + rtl::OUString aPre( rtl::OUString::createFromAscii( "<link><src>" ) ); + rtl::OUString aMid( rtl::OUString::createFromAscii( "</src><dst>" ) ); + rtl::OUString aEnd( rtl::OUString::createFromAscii( "</dst></link>" ) ); + + for ( sal_Int32 n = 0; n < nCount; ++n ) + { + rOutData += aPre; + rOutData += rInData[ n ].Source; + rOutData += aMid; + rOutData += rInData[ n ].Destination; + rOutData += aEnd; + } + return true; + } + return false; +} |