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Diffstat (limited to 'sax/source/fastparser/legacyfastparser.cxx')
| -rw-r--r-- | sax/source/fastparser/legacyfastparser.cxx | 375 |
1 files changed, 375 insertions, 0 deletions
diff --git a/sax/source/fastparser/legacyfastparser.cxx b/sax/source/fastparser/legacyfastparser.cxx new file mode 100644 index 000000000..e4c425bd0 --- /dev/null +++ b/sax/source/fastparser/legacyfastparser.cxx @@ -0,0 +1,375 @@ +/* -*- 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 <com/sun/star/lang/XServiceInfo.hpp> +#include <com/sun/star/xml/sax/XParser.hpp> +#include <com/sun/star/xml/sax/FastParser.hpp> +#include <com/sun/star/lang/XInitialization.hpp> +#include <com/sun/star/beans/Pair.hpp> +#include <comphelper/attributelist.hxx> +#include <cppuhelper/supportsservice.hxx> +#include <comphelper/processfactory.hxx> +#include <rtl/ref.hxx> +#include <memory> +#include <utility> +#include <vector> + +using namespace ::cppu; +using namespace css; +using namespace uno; +using namespace lang; +using namespace xml::sax; +using namespace io; + +namespace { + +class NamespaceHandler : public WeakImplHelper< XFastNamespaceHandler > +{ +private: + struct NamespaceDefine + { + OUString m_aPrefix; + OUString m_aNamespaceURI; + + NamespaceDefine( OUString aPrefix, OUString aNamespaceURI ) : m_aPrefix(std::move( aPrefix )), m_aNamespaceURI(std::move( aNamespaceURI )) {} + }; + std::vector< std::unique_ptr< NamespaceDefine > > m_aNamespaceDefines; + +public: + NamespaceHandler(); + void addNSDeclAttributes( rtl::Reference < comphelper::AttributeList > const & rAttrList ); + + //XFastNamespaceHandler + virtual void SAL_CALL registerNamespace( const OUString& rNamespacePrefix, const OUString& rNamespaceURI ) override; + virtual OUString SAL_CALL getNamespaceURI( const OUString& rNamespacePrefix ) override; +}; + +NamespaceHandler::NamespaceHandler() +{ +} + +void NamespaceHandler::addNSDeclAttributes( rtl::Reference < comphelper::AttributeList > const & rAttrList ) +{ + for(const auto& aNamespaceDefine : m_aNamespaceDefines) + { + OUString& rPrefix = aNamespaceDefine->m_aPrefix; + OUString& rNamespaceURI = aNamespaceDefine->m_aNamespaceURI; + OUString sDecl; + if ( rPrefix.isEmpty() ) + sDecl = "xmlns"; + else + sDecl = "xmlns:" + rPrefix; + rAttrList->AddAttribute( sDecl, "CDATA", rNamespaceURI ); + } + m_aNamespaceDefines.clear(); +} + +void NamespaceHandler::registerNamespace( const OUString& rNamespacePrefix, const OUString& rNamespaceURI ) +{ + m_aNamespaceDefines.push_back( std::make_unique<NamespaceDefine>( + rNamespacePrefix, rNamespaceURI) ); +} + +OUString NamespaceHandler::getNamespaceURI( const OUString&/* rNamespacePrefix */ ) +{ + return OUString(); +} + +class SaxLegacyFastParser : public WeakImplHelper< XInitialization, XServiceInfo, XParser > +{ +private: + rtl::Reference< NamespaceHandler > m_aNamespaceHandler; +public: + SaxLegacyFastParser(); + +// 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 Reference< XDocumentHandler > & xHandler) override; + virtual void SAL_CALL setErrorHandler(const Reference< XErrorHandler > & xHandler) override; + virtual void SAL_CALL setDTDHandler(const Reference < XDTDHandler > & xHandler) override; + virtual void SAL_CALL setEntityResolver(const Reference< XEntityResolver >& xResolver) override; + virtual void SAL_CALL setLocale( const Locale &locale ) override; + +// XServiceInfo + OUString SAL_CALL getImplementationName() override; + Sequence< OUString > SAL_CALL getSupportedServiceNames() override; + sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override; + +private: + Reference< XFastParser > m_xParser; + Reference< XDocumentHandler > m_xDocumentHandler; + Reference< XFastTokenHandler > m_xTokenHandler; + +}; + + +class CallbackDocumentHandler : public WeakImplHelper< XFastDocumentHandler > +{ +private: + Reference< XDocumentHandler > m_xDocumentHandler; + Reference< XFastTokenHandler > m_xTokenHandler; + rtl::Reference< NamespaceHandler > m_aNamespaceHandler; + OUString getNamespacePrefixFromToken( sal_Int32 nToken ); + OUString getNameFromToken( sal_Int32 nToken ); + + static constexpr OUStringLiteral aDefaultNamespace = u""; + static constexpr OUStringLiteral aNamespaceSeparator = u":"; + +public: + CallbackDocumentHandler( Reference< XDocumentHandler > const & xDocumentHandler, + rtl::Reference< NamespaceHandler > const & rNamespaceHandler, + Reference< XFastTokenHandler > const & xTokenHandler); + + // XFastDocumentHandler + virtual void SAL_CALL startDocument() override; + virtual void SAL_CALL endDocument() override; + virtual void SAL_CALL processingInstruction( const OUString& rTarget, const OUString& rData ) override; + virtual void SAL_CALL setDocumentLocator( const Reference< XLocator >& xLocator ) override; + + // XFastContextHandler + virtual void SAL_CALL startFastElement( sal_Int32 nElement, const Reference< XFastAttributeList >& Attribs ) override; + virtual void SAL_CALL startUnknownElement( const OUString& Namespace, const OUString& Name, const Reference< XFastAttributeList >& Attribs ) override; + virtual void SAL_CALL endFastElement( sal_Int32 Element ) override; + virtual void SAL_CALL endUnknownElement( const OUString& Namespace, const OUString& Name ) override; + virtual Reference< XFastContextHandler > SAL_CALL createFastChildContext( sal_Int32 nElement, const Reference< XFastAttributeList >& Attribs ) override; + virtual Reference< XFastContextHandler > SAL_CALL createUnknownChildContext( const OUString& Namespace, const OUString& Name, const Reference< XFastAttributeList >& Attribs ) override; + virtual void SAL_CALL characters( const OUString& aChars ) override; + +}; + +OUString CallbackDocumentHandler::getNamespacePrefixFromToken( sal_Int32 nToken ) +{ + if ( ( nToken & 0xffff0000 ) != 0 ) + { + Sequence< sal_Int8 > aSeq = m_xTokenHandler->getUTF8Identifier( nToken & 0xffff0000 ); + return OUString( reinterpret_cast< const char* >( + aSeq.getConstArray() ), aSeq.getLength(), RTL_TEXTENCODING_UTF8 ); + } + else + return OUString(); +} + +OUString CallbackDocumentHandler::getNameFromToken( sal_Int32 nToken ) +{ + Sequence< sal_Int8 > aSeq = m_xTokenHandler->getUTF8Identifier( nToken & 0xffff ); + return OUString( reinterpret_cast< const char* >( + aSeq.getConstArray() ), aSeq.getLength(), RTL_TEXTENCODING_UTF8 ); +} + +CallbackDocumentHandler::CallbackDocumentHandler( Reference< XDocumentHandler > const & xDocumentHandler, + rtl::Reference< NamespaceHandler > const & rNamespaceHandler, + Reference< XFastTokenHandler > const & xTokenHandler) +{ + m_xDocumentHandler.set( xDocumentHandler ); + m_aNamespaceHandler = rNamespaceHandler; + m_xTokenHandler.set( xTokenHandler ); +} + +void SAL_CALL CallbackDocumentHandler::startDocument() +{ + if ( m_xDocumentHandler.is() ) + m_xDocumentHandler->startDocument(); +} + +void SAL_CALL CallbackDocumentHandler::endDocument() +{ + if ( m_xDocumentHandler.is() ) + m_xDocumentHandler->endDocument(); +} + +void SAL_CALL CallbackDocumentHandler::processingInstruction( const OUString& rTarget, const OUString& rData ) +{ + if ( m_xDocumentHandler.is() ) + m_xDocumentHandler->processingInstruction( rTarget, rData ); +} + +void SAL_CALL CallbackDocumentHandler::setDocumentLocator( const Reference< XLocator >& xLocator ) +{ + if ( m_xDocumentHandler.is() ) + m_xDocumentHandler->setDocumentLocator( xLocator ); +} + +void SAL_CALL CallbackDocumentHandler::startFastElement( sal_Int32 nElement , const Reference< XFastAttributeList >& Attribs ) +{ + const OUString& rPrefix = CallbackDocumentHandler::getNamespacePrefixFromToken( nElement ); + const OUString& rLocalName = CallbackDocumentHandler::getNameFromToken( nElement ); + startUnknownElement( aDefaultNamespace, (rPrefix.isEmpty())? rLocalName : rPrefix + aNamespaceSeparator + rLocalName, Attribs ); +} + +void SAL_CALL CallbackDocumentHandler::startUnknownElement( const OUString& /*Namespace*/, const OUString& Name, const Reference< XFastAttributeList >& Attribs ) +{ + if ( !m_xDocumentHandler.is() ) + return; + + rtl::Reference < comphelper::AttributeList > rAttrList = new comphelper::AttributeList; + m_aNamespaceHandler->addNSDeclAttributes( rAttrList ); + + const Sequence< xml::FastAttribute > fastAttribs = Attribs->getFastAttributes(); + for (const auto& rAttr : fastAttribs) + { + const OUString& rAttrValue = rAttr.Value; + sal_Int32 nToken = rAttr.Token; + const OUString& rAttrNamespacePrefix = CallbackDocumentHandler::getNamespacePrefixFromToken( nToken ); + OUString sAttrName = CallbackDocumentHandler::getNameFromToken( nToken ); + if ( !rAttrNamespacePrefix.isEmpty() ) + sAttrName = rAttrNamespacePrefix + aNamespaceSeparator + sAttrName; + + rAttrList->AddAttribute( sAttrName, "CDATA", rAttrValue ); + } + + const Sequence< xml::Attribute > unknownAttribs = Attribs->getUnknownAttributes(); + for (const auto& rAttr : unknownAttribs) + { + const OUString& rAttrValue = rAttr.Value; + const OUString& rAttrName = rAttr.Name; + + rAttrList->AddAttribute( rAttrName, "CDATA", rAttrValue ); + } + m_xDocumentHandler->startElement( Name, rAttrList ); +} + +void SAL_CALL CallbackDocumentHandler::endFastElement( sal_Int32 nElement ) +{ + const OUString& rPrefix = CallbackDocumentHandler::getNamespacePrefixFromToken( nElement ); + const OUString& rLocalName = CallbackDocumentHandler::getNameFromToken( nElement ); + endUnknownElement( aDefaultNamespace, (rPrefix.isEmpty())? rLocalName : rPrefix + aNamespaceSeparator + rLocalName ); +} + + +void SAL_CALL CallbackDocumentHandler::endUnknownElement( const OUString& /*Namespace*/, const OUString& Name ) +{ + if ( m_xDocumentHandler.is() ) + { + m_xDocumentHandler->endElement( Name ); + } +} + +Reference< XFastContextHandler > SAL_CALL CallbackDocumentHandler::createFastChildContext( sal_Int32/* nElement */, const Reference< XFastAttributeList >&/* Attribs */ ) +{ + return this; +} + + +Reference< XFastContextHandler > SAL_CALL CallbackDocumentHandler::createUnknownChildContext( const OUString&/* Namespace */, const OUString&/* Name */, const Reference< XFastAttributeList >&/* Attribs */ ) +{ + return this; +} + +void SAL_CALL CallbackDocumentHandler::characters( const OUString& aChars ) +{ + if ( m_xDocumentHandler.is() ) + m_xDocumentHandler->characters( aChars ); +} + +SaxLegacyFastParser::SaxLegacyFastParser( ) : m_aNamespaceHandler( new NamespaceHandler ), + m_xParser(FastParser::create(::comphelper::getProcessComponentContext() )) +{ + m_xParser->setNamespaceHandler( m_aNamespaceHandler ); +} + +void SAL_CALL SaxLegacyFastParser::initialize(Sequence< Any > const& rArguments ) +{ + if (!rArguments.hasElements()) + return; + + Reference< XFastTokenHandler > xTokenHandler; + OUString str; + if ( ( rArguments[0] >>= xTokenHandler ) && xTokenHandler.is() ) + { + m_xTokenHandler.set( xTokenHandler ); + } + else if ( ( rArguments[0] >>= str ) && "registerNamespaces" == str ) + { + css::beans::Pair< OUString, sal_Int32 > rPair; + for (sal_Int32 i = 1; i < rArguments.getLength(); i++ ) + { + rArguments[i] >>= rPair; + m_xParser->registerNamespace( rPair.First, rPair.Second ); + } + } + else + { + uno::Reference<lang::XInitialization> const xInit(m_xParser, + uno::UNO_QUERY_THROW); + xInit->initialize( rArguments ); + } +} + +void SaxLegacyFastParser::parseStream( const InputSource& structSource ) +{ + m_xParser->setFastDocumentHandler( new CallbackDocumentHandler( m_xDocumentHandler, + m_aNamespaceHandler, m_xTokenHandler ) ); + m_xParser->setTokenHandler( m_xTokenHandler ); + m_xParser->parseStream( structSource ); +} + +void SaxLegacyFastParser::setDocumentHandler( const Reference< XDocumentHandler > & xHandler ) +{ + m_xDocumentHandler = xHandler; +} + +void SaxLegacyFastParser::setErrorHandler( const Reference< XErrorHandler > & xHandler ) +{ + m_xParser->setErrorHandler( xHandler ); +} + +void SaxLegacyFastParser::setDTDHandler( const Reference < XDTDHandler > &/* xHandler */ ) +{ + +} + +void SaxLegacyFastParser::setEntityResolver( const Reference< XEntityResolver >& xResolver ) +{ + m_xParser->setEntityResolver( xResolver ); +} + +void SaxLegacyFastParser::setLocale( const Locale &locale ) +{ + m_xParser->setLocale( locale ); +} + +OUString SaxLegacyFastParser::getImplementationName() +{ + return "com.sun.star.comp.extensions.xml.sax.LegacyFastParser"; +} + +sal_Bool SaxLegacyFastParser::supportsService(const OUString& ServiceName) +{ + return cppu::supportsService(this, ServiceName); +} + +Sequence< OUString > SaxLegacyFastParser::getSupportedServiceNames() +{ + return { "com.sun.star.xml.sax.LegacyFastParser" }; +} + +} //namespace + +extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface * +com_sun_star_comp_extensions_xml_sax_LegacyFastParser_get_implementation( + css::uno::XComponentContext *, + css::uno::Sequence<css::uno::Any> const &) +{ + return cppu::acquire(new SaxLegacyFastParser); +} + + /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |