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|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
*/
#include <string.h>
#include <cassert>
#include <memory>
#include <mutex>
#include <utility>
#include <string_view>
#include <vector>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/xml/sax/XExtendedDocumentHandler.hpp>
#include <com/sun/star/xml/sax/XParser.hpp>
#include <com/sun/star/xml/sax/SAXParseException.hpp>
#include <com/sun/star/io/IOException.hpp>
#include <com/sun/star/io/XSeekable.hpp>
#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
#include <comphelper/attributelist.hxx>
#include <cppuhelper/weak.hxx>
#include <cppuhelper/implbase.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <rtl/ref.hxx>
#include <sal/log.hxx>
#include <expat.h>
using namespace ::osl;
using namespace ::cppu;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::xml::sax;
using namespace ::com::sun::star::io;
#include <xml2utf.hxx>
namespace {
#define XML_CHAR_TO_OUSTRING(x) OUString(x , strlen( x ), RTL_TEXTENCODING_UTF8)
#define XML_CHAR_N_TO_USTRING(x,n) OUString(x,n, RTL_TEXTENCODING_UTF8 )
/*
* The following macro encapsulates any call to an event handler.
* It ensures, that exceptions thrown by the event handler are
* treated properly.
*/
#define CALL_ELEMENT_HANDLER_AND_CARE_FOR_EXCEPTIONS(pThis,call) \
if( ! pThis->bExceptionWasThrown ) { \
try {\
pThis->call;\
}\
catch( const SAXParseException &e ) {\
callErrorHandler( pThis , e );\
}\
catch( const SAXException &e ) {\
callErrorHandler( pThis , SAXParseException(\
e.Message, \
e.Context, \
e.WrappedException,\
pThis->rDocumentLocator->getPublicId(),\
pThis->rDocumentLocator->getSystemId(),\
pThis->rDocumentLocator->getLineNumber(),\
pThis->rDocumentLocator->getColumnNumber()\
) );\
}\
catch( const css::uno::RuntimeException &e ) {\
pThis->bExceptionWasThrown = true; \
pThis->bRTExceptionWasThrown = true; \
pImpl->rtexception = e; \
}\
catch( const css::uno::Exception &e ) {\
pThis->bExceptionWasThrown = true; \
pThis->bRTExceptionWasThrown = true; \
pImpl->rtexception = WrappedTargetRuntimeException("Non-runtime UNO exception caught during parse", e.Context, css::uno::Any(e)); \
}\
}\
((void)0)
class SaxExpatParser_Impl;
// This class implements the external Parser interface
class SaxExpatParser
: public WeakImplHelper< XInitialization
, XServiceInfo
, XParser >
{
public:
SaxExpatParser();
// css::lang::XInitialization:
virtual void SAL_CALL initialize(css::uno::Sequence<css::uno::Any> const& rArguments) override;
// The SAX-Parser-Interface
virtual void SAL_CALL parseStream( const InputSource& structSource) override;
virtual void SAL_CALL setDocumentHandler(const css::uno::Reference< XDocumentHandler > & xHandler) override;
virtual void SAL_CALL setErrorHandler(const css::uno::Reference< XErrorHandler > & xHandler) override;
virtual void SAL_CALL setDTDHandler(const css::uno::Reference < XDTDHandler > & xHandler) override;
virtual void SAL_CALL setEntityResolver(const css::uno::Reference< XEntityResolver >& xResolver) override;
virtual void SAL_CALL setLocale( const Locale &locale ) override;
public: // XServiceInfo
OUString SAL_CALL getImplementationName() override;
css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
private:
std::unique_ptr<SaxExpatParser_Impl> m_pImpl;
};
// Entity binds all information needed for a single file
struct Entity
{
InputSource structSource;
XML_Parser pParser;
sax_expatwrap::XMLFile2UTFConverter converter;
};
class SaxExpatParser_Impl
{
public: // module scope
std::mutex aMutex;
bool m_bEnableDoS; // fdo#60471 thank you Adobe Illustrator
css::uno::Reference< XDocumentHandler > rDocumentHandler;
css::uno::Reference< XExtendedDocumentHandler > rExtendedDocumentHandler;
css::uno::Reference< XErrorHandler > rErrorHandler;
css::uno::Reference< XDTDHandler > rDTDHandler;
css::uno::Reference< XEntityResolver > rEntityResolver;
css::uno::Reference < XLocator > rDocumentLocator;
rtl::Reference < comphelper::AttributeList > rAttrList;
// External entity stack
std::vector<struct Entity> vecEntity;
void pushEntity( Entity &&entity )
{ vecEntity.push_back( std::move(entity) ); }
void popEntity()
{ vecEntity.pop_back( ); }
struct Entity &getEntity()
{ return vecEntity.back(); }
// Exception cannot be thrown through the C-XmlParser (possible resource leaks),
// therefore the exception must be saved somewhere.
SAXParseException exception;
css::uno::RuntimeException rtexception;
bool bExceptionWasThrown;
bool bRTExceptionWasThrown;
public:
SaxExpatParser_Impl()
: m_bEnableDoS(false)
, bExceptionWasThrown(false)
, bRTExceptionWasThrown(false)
{
}
// the C-Callbacks for the expat parser
void static callbackStartElement(void *userData, const XML_Char *name , const XML_Char **atts);
void static callbackEndElement(void *userData, const XML_Char *name);
void static callbackCharacters( void *userData , const XML_Char *s , int nLen );
void static callbackProcessingInstruction( void *userData ,
const XML_Char *sTarget ,
const XML_Char *sData );
void static callbackEntityDecl( void *userData ,
const XML_Char *entityName,
int is_parameter_entity,
const XML_Char *value,
int value_length,
const XML_Char *base,
const XML_Char *systemId,
const XML_Char *publicId,
const XML_Char *notationName);
void static callbackNotationDecl( void *userData,
const XML_Char *notationName,
const XML_Char *base,
const XML_Char *systemId,
const XML_Char *publicId);
bool static callbackExternalEntityRef( XML_Parser parser,
const XML_Char *openEntityNames,
const XML_Char *base,
const XML_Char *systemId,
const XML_Char *publicId);
int static callbackUnknownEncoding(void *encodingHandlerData,
const XML_Char *name,
XML_Encoding *info);
void static callbackDefault( void *userData, const XML_Char *s, int len);
void static callbackStartCDATA( void *userData );
void static callbackEndCDATA( void *userData );
void static callbackComment( void *userData , const XML_Char *s );
void static callErrorHandler( SaxExpatParser_Impl *pImpl , const SAXParseException &e );
public:
void parse();
};
extern "C"
{
static void call_callbackStartElement(void *userData, const XML_Char *name , const XML_Char **atts)
{
SaxExpatParser_Impl::callbackStartElement(userData,name,atts);
}
static void call_callbackEndElement(void *userData, const XML_Char *name)
{
SaxExpatParser_Impl::callbackEndElement(userData,name);
}
static void call_callbackCharacters( void *userData , const XML_Char *s , int nLen )
{
SaxExpatParser_Impl::callbackCharacters(userData,s,nLen);
}
static void call_callbackProcessingInstruction(void *userData,const XML_Char *sTarget,const XML_Char *sData )
{
SaxExpatParser_Impl::callbackProcessingInstruction(userData,sTarget,sData );
}
static void call_callbackEntityDecl(void *userData ,
const XML_Char *entityName,
int is_parameter_entity,
const XML_Char *value,
int value_length,
const XML_Char *base,
const XML_Char *systemId,
const XML_Char *publicId,
const XML_Char *notationName)
{
SaxExpatParser_Impl::callbackEntityDecl(userData, entityName,
is_parameter_entity, value, value_length,
base, systemId, publicId, notationName);
}
static void call_callbackNotationDecl(void *userData,
const XML_Char *notationName,
const XML_Char *base,
const XML_Char *systemId,
const XML_Char *publicId)
{
SaxExpatParser_Impl::callbackNotationDecl(userData,notationName,base,systemId,publicId);
}
static int call_callbackExternalEntityRef(XML_Parser parser,
const XML_Char *openEntityNames,
const XML_Char *base,
const XML_Char *systemId,
const XML_Char *publicId)
{
return SaxExpatParser_Impl::callbackExternalEntityRef(parser,openEntityNames,base,systemId,publicId);
}
static int call_callbackUnknownEncoding(void *encodingHandlerData,
const XML_Char *name,
XML_Encoding *info)
{
return SaxExpatParser_Impl::callbackUnknownEncoding(encodingHandlerData,name,info);
}
static void call_callbackDefault( void *userData, const XML_Char *s, int len)
{
SaxExpatParser_Impl::callbackDefault(userData,s,len);
}
static void call_callbackStartCDATA( void *userData )
{
SaxExpatParser_Impl::callbackStartCDATA(userData);
}
static void call_callbackEndCDATA( void *userData )
{
SaxExpatParser_Impl::callbackEndCDATA(userData);
}
static void call_callbackComment( void *userData , const XML_Char *s )
{
SaxExpatParser_Impl::callbackComment(userData,s);
}
}
// LocatorImpl
class LocatorImpl :
public WeakImplHelper< XLocator, css::io::XSeekable >
// should use a different interface for stream positions!
{
public:
explicit LocatorImpl(SaxExpatParser_Impl *p)
: m_pParser(p)
{
}
public: //XLocator
virtual sal_Int32 SAL_CALL getColumnNumber() override
{
return XML_GetCurrentColumnNumber( m_pParser->getEntity().pParser );
}
virtual sal_Int32 SAL_CALL getLineNumber() override
{
return XML_GetCurrentLineNumber( m_pParser->getEntity().pParser );
}
virtual OUString SAL_CALL getPublicId() override
{
return m_pParser->getEntity().structSource.sPublicId;
}
virtual OUString SAL_CALL getSystemId() override
{
return m_pParser->getEntity().structSource.sSystemId;
}
// XSeekable (only for getPosition)
virtual void SAL_CALL seek( sal_Int64 ) override
{
}
virtual sal_Int64 SAL_CALL getPosition() override
{
return XML_GetCurrentByteIndex( m_pParser->getEntity().pParser );
}
virtual ::sal_Int64 SAL_CALL getLength() override
{
return 0;
}
private:
SaxExpatParser_Impl *m_pParser;
};
SaxExpatParser::SaxExpatParser( )
{
m_pImpl.reset( new SaxExpatParser_Impl );
rtl::Reference<LocatorImpl> pLoc = new LocatorImpl( m_pImpl.get() );
m_pImpl->rDocumentLocator = pLoc;
// Performance-improvement; handing out the same object with every call of
// the startElement callback is allowed (see sax-specification):
m_pImpl->rAttrList = new comphelper::AttributeList;
m_pImpl->bExceptionWasThrown = false;
m_pImpl->bRTExceptionWasThrown = false;
}
// css::lang::XInitialization:
void SAL_CALL
SaxExpatParser::initialize(css::uno::Sequence< css::uno::Any > const& rArguments)
{
// possible arguments: a string "DoSmeplease"
if (rArguments.hasElements())
{
OUString str;
if ((rArguments[0] >>= str) && "DoSmeplease" == str)
{
std::unique_lock guard( m_pImpl->aMutex );
m_pImpl->m_bEnableDoS = true;
}
}
}
class ParserCleanup
{
private:
SaxExpatParser_Impl& m_rParser;
XML_Parser m_xmlParser;
public:
ParserCleanup(SaxExpatParser_Impl& rParser, XML_Parser xmlParser)
: m_rParser(rParser)
, m_xmlParser(xmlParser)
{
}
~ParserCleanup()
{
m_rParser.popEntity();
//XML_ParserFree accepts a null arg
XML_ParserFree(m_xmlParser);
}
};
/***************
*
* parseStream does Parser-startup initializations. The SaxExpatParser_Impl::parse() method does
* the file-specific initialization work. (During a parser run, external files may be opened)
*
****************/
void SaxExpatParser::parseStream( const InputSource& structSource)
{
// Only one text at one time
std::unique_lock guard( m_pImpl->aMutex );
struct Entity entity;
entity.structSource = structSource;
if( ! entity.structSource.aInputStream.is() )
{
throw SAXException("No input source",
css::uno::Reference< css::uno::XInterface > () , css::uno::Any() );
}
entity.converter.setInputStream( entity.structSource.aInputStream );
if( !entity.structSource.sEncoding.isEmpty() )
{
entity.converter.setEncoding(
OUStringToOString( entity.structSource.sEncoding , RTL_TEXTENCODING_ASCII_US ) );
}
// create parser with proper encoding
entity.pParser = XML_ParserCreate( nullptr );
if( ! entity.pParser )
{
throw SAXException("Couldn't create parser",
css::uno::Reference< css::uno::XInterface > (), css::uno::Any() );
}
// set all necessary C-Callbacks
XML_SetUserData( entity.pParser, m_pImpl.get() );
XML_SetElementHandler( entity.pParser ,
call_callbackStartElement ,
call_callbackEndElement );
XML_SetCharacterDataHandler( entity.pParser , call_callbackCharacters );
XML_SetProcessingInstructionHandler(entity.pParser ,
call_callbackProcessingInstruction );
if (!m_pImpl->m_bEnableDoS)
{
XML_SetEntityDeclHandler(entity.pParser, call_callbackEntityDecl);
}
XML_SetNotationDeclHandler( entity.pParser, call_callbackNotationDecl );
XML_SetExternalEntityRefHandler( entity.pParser,
call_callbackExternalEntityRef);
XML_SetUnknownEncodingHandler( entity.pParser, call_callbackUnknownEncoding ,nullptr);
if( m_pImpl->rExtendedDocumentHandler.is() ) {
// These handlers just delegate calls to the ExtendedHandler. If no extended handler is
// given, these callbacks can be ignored
XML_SetDefaultHandlerExpand( entity.pParser, call_callbackDefault );
XML_SetCommentHandler( entity.pParser, call_callbackComment );
XML_SetCdataSectionHandler( entity.pParser ,
call_callbackStartCDATA ,
call_callbackEndCDATA );
}
m_pImpl->exception = SAXParseException();
auto const xmlParser = entity.pParser;
m_pImpl->pushEntity( std::move(entity) );
ParserCleanup aEnsureFree(*m_pImpl, xmlParser);
// start the document
if( m_pImpl->rDocumentHandler.is() ) {
m_pImpl->rDocumentHandler->setDocumentLocator( m_pImpl->rDocumentLocator );
m_pImpl->rDocumentHandler->startDocument();
}
m_pImpl->parse();
// finish document
if( m_pImpl->rDocumentHandler.is() ) {
m_pImpl->rDocumentHandler->endDocument();
}
}
void SaxExpatParser::setDocumentHandler(const css::uno::Reference< XDocumentHandler > & xHandler)
{
m_pImpl->rDocumentHandler = xHandler;
m_pImpl->rExtendedDocumentHandler =
css::uno::Reference< XExtendedDocumentHandler >( xHandler , css::uno::UNO_QUERY );
}
void SaxExpatParser::setErrorHandler(const css::uno::Reference< XErrorHandler > & xHandler)
{
m_pImpl->rErrorHandler = xHandler;
}
void SaxExpatParser::setDTDHandler(const css::uno::Reference< XDTDHandler > & xHandler)
{
m_pImpl->rDTDHandler = xHandler;
}
void SaxExpatParser::setEntityResolver(const css::uno::Reference < XEntityResolver > & xResolver)
{
m_pImpl->rEntityResolver = xResolver;
}
void SaxExpatParser::setLocale( const Locale & )
{
// not implemented
}
// XServiceInfo
OUString SaxExpatParser::getImplementationName()
{
return "com.sun.star.comp.extensions.xml.sax.ParserExpat";
}
// XServiceInfo
sal_Bool SaxExpatParser::supportsService(const OUString& ServiceName)
{
return cppu::supportsService(this, ServiceName);
}
// XServiceInfo
css::uno::Sequence< OUString > SaxExpatParser::getSupportedServiceNames()
{
return { "com.sun.star.xml.sax.Parser" };
}
/*---------------------------------------
*
* Helper functions and classes
*
*
*-------------------------------------------*/
OUString getErrorMessage( XML_Error xmlE, std::u16string_view sSystemId , sal_Int32 nLine )
{
OUString Message;
if( XML_ERROR_NONE == xmlE ) {
Message = "No";
}
else if( XML_ERROR_NO_MEMORY == xmlE ) {
Message = "no memory";
}
else if( XML_ERROR_SYNTAX == xmlE ) {
Message = "syntax";
}
else if( XML_ERROR_NO_ELEMENTS == xmlE ) {
Message = "no elements";
}
else if( XML_ERROR_INVALID_TOKEN == xmlE ) {
Message = "invalid token";
}
else if( XML_ERROR_UNCLOSED_TOKEN == xmlE ) {
Message = "unclosed token";
}
else if( XML_ERROR_PARTIAL_CHAR == xmlE ) {
Message = "partial char";
}
else if( XML_ERROR_TAG_MISMATCH == xmlE ) {
Message = "tag mismatch";
}
else if( XML_ERROR_DUPLICATE_ATTRIBUTE == xmlE ) {
Message = "duplicate attribute";
}
else if( XML_ERROR_JUNK_AFTER_DOC_ELEMENT == xmlE ) {
Message = "junk after doc element";
}
else if( XML_ERROR_PARAM_ENTITY_REF == xmlE ) {
Message = "parameter entity reference";
}
else if( XML_ERROR_UNDEFINED_ENTITY == xmlE ) {
Message = "undefined entity";
}
else if( XML_ERROR_RECURSIVE_ENTITY_REF == xmlE ) {
Message = "recursive entity reference";
}
else if( XML_ERROR_ASYNC_ENTITY == xmlE ) {
Message = "async entity";
}
else if( XML_ERROR_BAD_CHAR_REF == xmlE ) {
Message = "bad char reference";
}
else if( XML_ERROR_BINARY_ENTITY_REF == xmlE ) {
Message = "binary entity reference";
}
else if( XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF == xmlE ) {
Message = "attribute external entity reference";
}
else if( XML_ERROR_MISPLACED_XML_PI == xmlE ) {
Message = "misplaced xml processing instruction";
}
else if( XML_ERROR_UNKNOWN_ENCODING == xmlE ) {
Message = "unknown encoding";
}
else if( XML_ERROR_INCORRECT_ENCODING == xmlE ) {
Message = "incorrect encoding";
}
else if( XML_ERROR_UNCLOSED_CDATA_SECTION == xmlE ) {
Message = "unclosed cdata section";
}
else if( XML_ERROR_EXTERNAL_ENTITY_HANDLING == xmlE ) {
Message = "external entity reference";
}
else if( XML_ERROR_NOT_STANDALONE == xmlE ) {
Message = "not standalone";
}
OUString str = OUString::Concat("[") +
sSystemId +
" line " +
OUString::number( nLine ) +
"]: " +
Message +
"error";
return str;
}
// starts parsing with actual parser !
void SaxExpatParser_Impl::parse( )
{
const int nBufSize = 16*1024;
int nRead = nBufSize;
css::uno::Sequence< sal_Int8 > seqOut(nBufSize);
while( nRead ) {
nRead = getEntity().converter.readAndConvert( seqOut , nBufSize );
bool bContinue(false);
if( ! nRead ) {
// last call - must return OK
XML_Status const ret = XML_Parse( getEntity().pParser,
reinterpret_cast<const char *>(seqOut.getConstArray()),
0 ,
1 );
if (ret == XML_STATUS_OK) {
break;
}
} else {
bContinue = ( XML_Parse( getEntity().pParser,
reinterpret_cast<const char *>(seqOut.getConstArray()),
nRead,
0 ) != XML_STATUS_ERROR );
}
if( ! bContinue || bExceptionWasThrown ) {
if ( bRTExceptionWasThrown )
throw rtexception;
// Error during parsing !
XML_Error xmlE = XML_GetErrorCode( getEntity().pParser );
OUString sSystemId = rDocumentLocator->getSystemId();
sal_Int32 nLine = rDocumentLocator->getLineNumber();
SAXParseException aExcept(
getErrorMessage(xmlE , sSystemId, nLine) ,
css::uno::Reference< css::uno::XInterface >(),
css::uno::Any( &exception , cppu::UnoType<decltype(exception)>::get() ),
rDocumentLocator->getPublicId(),
rDocumentLocator->getSystemId(),
rDocumentLocator->getLineNumber(),
rDocumentLocator->getColumnNumber()
);
if( rErrorHandler.is() ) {
// error handler is set, so the handler may throw the exception
css::uno::Any a;
a <<= aExcept;
rErrorHandler->fatalError( a );
}
// Error handler has not thrown an exception, but parsing cannot go on,
// so an exception MUST be thrown.
throw aExcept;
} // if( ! bContinue )
} // while
}
// The C-Callbacks
void SaxExpatParser_Impl::callbackStartElement( void *pvThis ,
const XML_Char *pwName ,
const XML_Char **awAttributes )
{
SaxExpatParser_Impl *pImpl = static_cast<SaxExpatParser_Impl*>(pvThis);
if( !pImpl->rDocumentHandler.is() )
return;
int i = 0;
pImpl->rAttrList->Clear();
while( awAttributes[i] ) {
assert(awAttributes[i+1]);
pImpl->rAttrList->AddAttribute(
XML_CHAR_TO_OUSTRING( awAttributes[i] ) ,
XML_CHAR_TO_OUSTRING( awAttributes[i+1] ) );
i +=2;
}
CALL_ELEMENT_HANDLER_AND_CARE_FOR_EXCEPTIONS(
pImpl ,
rDocumentHandler->startElement( XML_CHAR_TO_OUSTRING( pwName ) ,
pImpl->rAttrList ) );
}
void SaxExpatParser_Impl::callbackEndElement( void *pvThis , const XML_Char *pwName )
{
SaxExpatParser_Impl *pImpl = static_cast<SaxExpatParser_Impl*>(pvThis);
if( pImpl->rDocumentHandler.is() ) {
CALL_ELEMENT_HANDLER_AND_CARE_FOR_EXCEPTIONS( pImpl,
rDocumentHandler->endElement( XML_CHAR_TO_OUSTRING( pwName ) ) );
}
}
void SaxExpatParser_Impl::callbackCharacters( void *pvThis , const XML_Char *s , int nLen )
{
SaxExpatParser_Impl *pImpl = static_cast<SaxExpatParser_Impl*>(pvThis);
if( pImpl->rDocumentHandler.is() ) {
CALL_ELEMENT_HANDLER_AND_CARE_FOR_EXCEPTIONS( pImpl ,
rDocumentHandler->characters( XML_CHAR_N_TO_USTRING(s,nLen) ) );
}
}
void SaxExpatParser_Impl::callbackProcessingInstruction( void *pvThis,
const XML_Char *sTarget ,
const XML_Char *sData )
{
SaxExpatParser_Impl *pImpl = static_cast<SaxExpatParser_Impl*>(pvThis);
if( pImpl->rDocumentHandler.is() ) {
CALL_ELEMENT_HANDLER_AND_CARE_FOR_EXCEPTIONS(
pImpl ,
rDocumentHandler->processingInstruction( XML_CHAR_TO_OUSTRING( sTarget ),
XML_CHAR_TO_OUSTRING( sData ) ) );
}
}
void SaxExpatParser_Impl::callbackEntityDecl(
void *pvThis, const XML_Char *entityName,
SAL_UNUSED_PARAMETER int /*is_parameter_entity*/,
const XML_Char *value, SAL_UNUSED_PARAMETER int /*value_length*/,
SAL_UNUSED_PARAMETER const XML_Char * /*base*/, const XML_Char *systemId,
const XML_Char *publicId, const XML_Char *notationName)
{
SaxExpatParser_Impl *pImpl = static_cast<SaxExpatParser_Impl*>(pvThis);
if (value) { // value != 0 means internal entity
SAL_INFO("sax","SaxExpatParser: internal entity declaration, stopping");
XML_StopParser(pImpl->getEntity().pParser, XML_FALSE);
pImpl->exception = SAXParseException(
"SaxExpatParser: internal entity declaration, stopping",
nullptr, css::uno::Any(),
pImpl->rDocumentLocator->getPublicId(),
pImpl->rDocumentLocator->getSystemId(),
pImpl->rDocumentLocator->getLineNumber(),
pImpl->rDocumentLocator->getColumnNumber() );
pImpl->bExceptionWasThrown = true;
} else {
if( pImpl->rDTDHandler.is() ) {
CALL_ELEMENT_HANDLER_AND_CARE_FOR_EXCEPTIONS(
pImpl ,
rDTDHandler->unparsedEntityDecl(
XML_CHAR_TO_OUSTRING( entityName ),
XML_CHAR_TO_OUSTRING( publicId ) ,
XML_CHAR_TO_OUSTRING( systemId ) ,
XML_CHAR_TO_OUSTRING( notationName ) ) );
}
}
}
void SaxExpatParser_Impl::callbackNotationDecl(
void *pvThis, const XML_Char *notationName,
SAL_UNUSED_PARAMETER const XML_Char * /*base*/, const XML_Char *systemId,
const XML_Char *publicId)
{
SaxExpatParser_Impl *pImpl = static_cast<SaxExpatParser_Impl*>(pvThis);
if( pImpl->rDTDHandler.is() ) {
CALL_ELEMENT_HANDLER_AND_CARE_FOR_EXCEPTIONS( pImpl,
rDTDHandler->notationDecl( XML_CHAR_TO_OUSTRING( notationName ) ,
XML_CHAR_TO_OUSTRING( publicId ) ,
XML_CHAR_TO_OUSTRING( systemId ) ) );
}
}
bool SaxExpatParser_Impl::callbackExternalEntityRef(
XML_Parser parser, const XML_Char *context,
SAL_UNUSED_PARAMETER const XML_Char * /*base*/, const XML_Char *systemId,
const XML_Char *publicId)
{
bool bOK = true;
SaxExpatParser_Impl *pImpl = static_cast<SaxExpatParser_Impl*>(XML_GetUserData( parser ));
struct Entity entity;
if( pImpl->rEntityResolver.is() ) {
try
{
entity.structSource = pImpl->rEntityResolver->resolveEntity(
XML_CHAR_TO_OUSTRING( publicId ) ,
XML_CHAR_TO_OUSTRING( systemId ) );
}
catch( const SAXParseException & e )
{
pImpl->exception = e;
bOK = false;
}
catch( const SAXException & e )
{
pImpl->exception = SAXParseException(
e.Message , e.Context , e.WrappedException ,
pImpl->rDocumentLocator->getPublicId(),
pImpl->rDocumentLocator->getSystemId(),
pImpl->rDocumentLocator->getLineNumber(),
pImpl->rDocumentLocator->getColumnNumber() );
bOK = false;
}
}
if( entity.structSource.aInputStream.is() ) {
entity.pParser = XML_ExternalEntityParserCreate( parser , context, nullptr );
if( ! entity.pParser )
{
return false;
}
entity.converter.setInputStream( entity.structSource.aInputStream );
auto const xmlParser = entity.pParser;
pImpl->pushEntity( std::move(entity) );
try
{
pImpl->parse();
}
catch( const SAXParseException & e )
{
pImpl->exception = e;
bOK = false;
}
catch( const IOException &e )
{
pImpl->exception.WrappedException <<= e;
bOK = false;
}
catch( const css::uno::RuntimeException &e )
{
pImpl->exception.WrappedException <<=e;
bOK = false;
}
pImpl->popEntity();
XML_ParserFree( xmlParser );
}
return bOK;
}
int SaxExpatParser_Impl::callbackUnknownEncoding(
SAL_UNUSED_PARAMETER void * /*encodingHandlerData*/,
SAL_UNUSED_PARAMETER const XML_Char * /*name*/,
SAL_UNUSED_PARAMETER XML_Encoding * /*info*/)
{
return 0;
}
void SaxExpatParser_Impl::callbackDefault( void *pvThis, const XML_Char *s, int len)
{
SaxExpatParser_Impl *pImpl = static_cast<SaxExpatParser_Impl*>(pvThis);
CALL_ELEMENT_HANDLER_AND_CARE_FOR_EXCEPTIONS( pImpl,
rExtendedDocumentHandler->unknown( XML_CHAR_N_TO_USTRING( s ,len) ) );
}
void SaxExpatParser_Impl::callbackComment( void *pvThis , const XML_Char *s )
{
SaxExpatParser_Impl *pImpl = static_cast<SaxExpatParser_Impl*>(pvThis);
CALL_ELEMENT_HANDLER_AND_CARE_FOR_EXCEPTIONS( pImpl,
rExtendedDocumentHandler->comment( XML_CHAR_TO_OUSTRING( s ) ) );
}
void SaxExpatParser_Impl::callbackStartCDATA( void *pvThis )
{
SaxExpatParser_Impl *pImpl = static_cast<SaxExpatParser_Impl*>(pvThis);
CALL_ELEMENT_HANDLER_AND_CARE_FOR_EXCEPTIONS( pImpl, rExtendedDocumentHandler->startCDATA() );
}
void SaxExpatParser_Impl::callErrorHandler( SaxExpatParser_Impl *pImpl ,
const SAXParseException & e )
{
try
{
if( pImpl->rErrorHandler.is() ) {
css::uno::Any a;
a <<= e;
pImpl->rErrorHandler->error( a );
}
else {
pImpl->exception = e;
pImpl->bExceptionWasThrown = true;
}
}
catch( const SAXParseException & ex ) {
pImpl->exception = ex;
pImpl->bExceptionWasThrown = true;
}
catch( const SAXException & ex ) {
pImpl->exception = SAXParseException(
ex.Message,
ex.Context,
ex.WrappedException,
pImpl->rDocumentLocator->getPublicId(),
pImpl->rDocumentLocator->getSystemId(),
pImpl->rDocumentLocator->getLineNumber(),
pImpl->rDocumentLocator->getColumnNumber()
);
pImpl->bExceptionWasThrown = true;
}
}
void SaxExpatParser_Impl::callbackEndCDATA( void *pvThis )
{
SaxExpatParser_Impl *pImpl = static_cast<SaxExpatParser_Impl*>(pvThis);
CALL_ELEMENT_HANDLER_AND_CARE_FOR_EXCEPTIONS(pImpl,rExtendedDocumentHandler->endCDATA() );
}
} // namespace
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
com_sun_star_comp_extensions_xml_sax_ParserExpat_get_implementation(
css::uno::XComponentContext *,
css::uno::Sequence<css::uno::Any> const &)
{
return cppu::acquire(new SaxExpatParser);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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