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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 <com/sun/star/embed/ElementModes.hpp>
#include <unotools/streamwrap.hxx>
#include <xmlversion.hxx>
#include <xmloff/xmlmetae.hxx>
#include <xmloff/xmltoken.hxx>
#include <comphelper/processfactory.hxx>
#include <com/sun/star/io/XActiveDataSource.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/util/DateTime.hpp>
#include <com/sun/star/util/MeasureUnit.hpp>
#include <com/sun/star/xml/sax/InputSource.hpp>
#include <com/sun/star/xml/sax/Parser.hpp>
#include <com/sun/star/xml/sax/Writer.hpp>
#include <cppuhelper/supportsservice.hxx>
using namespace ::com::sun::star::xml::sax;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star;
const char XMLN_VERSIONSLIST[] = "VersionList.xml";
XMLVersionListExport::XMLVersionListExport(
const css::uno::Reference< css::uno::XComponentContext >& rContext,
const css::uno::Sequence < css::util::RevisionTag >& rVersions,
const OUString &rFileName,
Reference< XDocumentHandler > &rHandler )
: SvXMLExport( rContext, "", rFileName, util::MeasureUnit::CM, rHandler ),
maVersions( rVersions )
{
GetNamespaceMap_().AddAtIndex( XML_NAMESPACE_DC_IDX, xmloff::token::GetXMLToken(xmloff::token::XML_NP_DC),
xmloff::token::GetXMLToken(xmloff::token::XML_N_DC), XML_NAMESPACE_DC );
GetNamespaceMap_().AddAtIndex( XML_NAMESPACE_FRAMEWORK_IDX, xmloff::token::GetXMLToken(xmloff::token::XML_NP_VERSIONS_LIST),
xmloff::token::GetXMLToken(xmloff::token::XML_N_VERSIONS_LIST), XML_NAMESPACE_FRAMEWORK );
}
sal_uInt32 XMLVersionListExport::exportDoc( enum ::xmloff::token::XMLTokenEnum )
{
GetDocHandler()->startDocument();
addChaffWhenEncryptedStorage();
sal_uInt16 nPos = SvXMLNamespaceMap::GetIndexByKey( XML_NAMESPACE_DC );
AddAttribute( XML_NAMESPACE_NONE, GetNamespaceMap_().GetAttrNameByIndex( nPos ),
GetNamespaceMap_().GetNameByIndex ( nPos ) );
nPos = SvXMLNamespaceMap::GetIndexByKey( XML_NAMESPACE_FRAMEWORK );
AddAttribute( XML_NAMESPACE_NONE, GetNamespaceMap_().GetAttrNameByIndex( nPos ),
GetNamespaceMap_().GetNameByIndex ( nPos ) );
{
// the following object will write all collected attributes in its dtor
SvXMLElementExport aRoot( *this, XML_NAMESPACE_FRAMEWORK, xmloff::token::XML_VERSION_LIST, true, true );
for ( sal_Int32 n=0; n<maVersions.getLength(); n++ )
{
const util::RevisionTag& rInfo = maVersions[n];
AddAttribute( XML_NAMESPACE_FRAMEWORK,
xmloff::token::XML_TITLE,
OUString( rInfo.Identifier ) );
AddAttribute( XML_NAMESPACE_FRAMEWORK,
xmloff::token::XML_COMMENT,
OUString( rInfo.Comment ) );
AddAttribute( XML_NAMESPACE_FRAMEWORK,
xmloff::token::XML_CREATOR,
OUString( rInfo.Author ) );
OUString aDateStr =
SvXMLMetaExport::GetISODateTimeString( rInfo.TimeStamp );
AddAttribute( XML_NAMESPACE_DC, xmloff::token::XML_DATE_TIME, aDateStr );
// the following object will write all collected attributes in its dtor
SvXMLElementExport aEntry( *this, XML_NAMESPACE_FRAMEWORK, xmloff::token::XML_VERSION_ENTRY, true, true );
}
}
GetDocHandler()->endDocument();
return 0;
}
XMLVersionListImport::XMLVersionListImport(
const css::uno::Reference< css::uno::XComponentContext >& rContext,
css::uno::Sequence < css::util::RevisionTag >& rVersions )
: SvXMLImport(rContext, ""),
maVersions( rVersions )
{
GetNamespaceMap().AddAtIndex( XML_NAMESPACE_FRAMEWORK_IDX, xmloff::token::GetXMLToken(xmloff::token::XML_NP_VERSIONS_LIST),
xmloff::token::GetXMLToken(xmloff::token::XML_N_VERSIONS_LIST), XML_NAMESPACE_FRAMEWORK );
}
XMLVersionListImport::~XMLVersionListImport() throw()
{}
SvXMLImportContext *XMLVersionListImport::CreateContext(
sal_uInt16 nPrefix,
const OUString& rLocalName,
const Reference< XAttributeList > & xAttrList )
{
SvXMLImportContext *pContext = nullptr;
if ( XML_NAMESPACE_FRAMEWORK == nPrefix &&
rLocalName == xmloff::token::GetXMLToken(xmloff::token::XML_VERSION_LIST) )
{
pContext = new XMLVersionListContext( *this, nPrefix, rLocalName, xAttrList );
}
else
{
pContext = SvXMLImport::CreateContext( nPrefix, rLocalName, xAttrList );
}
return pContext;
}
XMLVersionListContext::XMLVersionListContext( XMLVersionListImport& rImport,
sal_uInt16 nPrefix,
const OUString& rLocalName,
const Reference< XAttributeList > & )
: SvXMLImportContext( rImport, nPrefix, rLocalName )
, rLocalRef( rImport )
{
}
XMLVersionListContext::~XMLVersionListContext()
{}
SvXMLImportContext *XMLVersionListContext::CreateChildContext( sal_uInt16 nPrefix,
const OUString& rLocalName,
const Reference< XAttributeList > & xAttrList )
{
SvXMLImportContext *pContext = nullptr;
if ( nPrefix == XML_NAMESPACE_FRAMEWORK &&
rLocalName == xmloff::token::GetXMLToken(xmloff::token::XML_VERSION_ENTRY) )
{
pContext = new XMLVersionContext( rLocalRef, nPrefix, rLocalName, xAttrList );
}
else
{
pContext = new SvXMLImportContext( rLocalRef, nPrefix, rLocalName );
}
return pContext;
}
XMLVersionContext::XMLVersionContext( XMLVersionListImport& rImport,
sal_uInt16 nPref,
const OUString& rLocalName,
const Reference< XAttributeList > & xAttrList )
: SvXMLImportContext( rImport, nPref, rLocalName )
, rLocalRef( rImport )
{
sal_Int16 nAttrCount = xAttrList.is() ? xAttrList->getLength() : 0;
if ( !nAttrCount )
return;
util::RevisionTag aInfo;
for ( sal_Int16 i=0; i < nAttrCount; i++ )
{
OUString aLocalName;
const OUString& rAttrName = xAttrList->getNameByIndex( i );
sal_uInt16 nPrefix = rImport.GetNamespaceMap().GetKeyByAttrName( rAttrName, &aLocalName );
if ( XML_NAMESPACE_FRAMEWORK == nPrefix )
{
if ( aLocalName == xmloff::token::GetXMLToken(xmloff::token::XML_TITLE) )
{
const OUString& rAttrValue = xAttrList->getValueByIndex( i );
aInfo.Identifier = rAttrValue;
}
else if ( aLocalName == xmloff::token::GetXMLToken(xmloff::token::XML_COMMENT) )
{
const OUString& rAttrValue = xAttrList->getValueByIndex( i );
aInfo.Comment = rAttrValue;
}
else if ( aLocalName == xmloff::token::GetXMLToken(xmloff::token::XML_CREATOR) )
{
const OUString& rAttrValue = xAttrList->getValueByIndex( i );
aInfo.Author = rAttrValue;
}
}
else if ( ( XML_NAMESPACE_DC == nPrefix ) &&
( aLocalName == xmloff::token::GetXMLToken(xmloff::token::XML_DATE_TIME) ) )
{
const OUString& rAttrValue = xAttrList->getValueByIndex( i );
util::DateTime aTime;
if ( ParseISODateTimeString( rAttrValue, aTime ) )
aInfo.TimeStamp = aTime;
}
}
uno::Sequence < util::RevisionTag >& aList = rLocalRef.GetList();
sal_Int32 nLength = aList.getLength();
aList.realloc( nLength+1 );
aList[nLength] = aInfo;
}
XMLVersionContext::~XMLVersionContext()
{}
bool XMLVersionContext::ParseISODateTimeString(
const OUString& rString,
util::DateTime& rDateTime )
{
bool bSuccess = true;
OUString aDateStr, aTimeStr;
sal_Int32 nPos = rString.indexOf( (sal_Unicode) 'T' );
if ( nPos >= 0 )
{
aDateStr = rString.copy( 0, nPos );
aTimeStr = rString.copy( nPos + 1 );
}
else
aDateStr = rString; // no separator: only date part
sal_Int32 nYear = 0;
sal_Int32 nMonth = 1;
sal_Int32 nDay = 1;
sal_Int32 nHour = 0;
sal_Int32 nMin = 0;
sal_Int32 nSec = 0;
const sal_Unicode* pStr = aDateStr.getStr();
sal_Int32 nDateTokens = 1;
while ( *pStr )
{
if ( *pStr == '-' )
nDateTokens++;
pStr++;
}
if ( nDateTokens > 3 || aDateStr.isEmpty() )
bSuccess = false;
else
{
sal_Int32 n = 0;
nYear = aDateStr.getToken( 0, '-', n ).toInt32();
if ( nYear > 9999 )
bSuccess = false;
else if ( nDateTokens >= 2 )
{
nMonth = aDateStr.getToken( 0, '-', n ).toInt32();
if ( nMonth > 12 )
bSuccess = false;
else if ( nDateTokens >= 3 )
{
nDay = aDateStr.getToken( 0, '-', n ).toInt32();
if ( nDay > 31 )
bSuccess = false;
}
}
}
if ( bSuccess && !aTimeStr.isEmpty() ) // time is optional
{
pStr = aTimeStr.getStr();
sal_Int32 nTimeTokens = 1;
while ( *pStr )
{
if ( *pStr == ':' )
nTimeTokens++;
pStr++;
}
if ( nTimeTokens > 3 )
bSuccess = false;
else
{
sal_Int32 n = 0;
nHour = aTimeStr.getToken( 0, ':', n ).toInt32();
if ( nHour > 23 )
bSuccess = false;
else if ( nTimeTokens >= 2 )
{
nMin = aTimeStr.getToken( 0, ':', n ).toInt32();
if ( nMin > 59 )
bSuccess = false;
else if ( nTimeTokens >= 3 )
{
nSec = aTimeStr.getToken( 0, ':', n ).toInt32();
if ( nSec > 59 )
bSuccess = false;
}
}
}
}
if ( bSuccess )
{
rDateTime.Day = sal::static_int_cast< sal_uInt16 >(nDay);
rDateTime.Month = sal::static_int_cast< sal_uInt16 >(nMonth);
rDateTime.Year = sal::static_int_cast< sal_uInt16 >(nYear);
rDateTime.Hours = sal::static_int_cast< sal_uInt16 >(nHour);
rDateTime.Minutes = sal::static_int_cast< sal_uInt16 >(nMin);
rDateTime.Seconds = sal::static_int_cast< sal_uInt16 >(nSec);
}
return bSuccess;
}
void SAL_CALL XMLVersionListPersistence::store( const uno::Reference< embed::XStorage >& xRoot, const uno::Sequence< util::RevisionTag >& rVersions )
throw (css::io::IOException, css::uno::Exception, css::uno::RuntimeException, std::exception)
{
// no storage, no version list!
if ( xRoot.is() )
{
// get the services needed for writing the xml data
Reference< uno::XComponentContext > xContext =
comphelper::getProcessComponentContext();
Reference< XWriter > xWriter = Writer::create(xContext);
// check whether there's already a sub storage with the version info
// and delete it
OUString sVerName( XMLN_VERSIONSLIST );
try {
// open (create) the sub storage with the version info
uno::Reference< io::XStream > xVerStream = xRoot->openStreamElement(
sVerName,
embed::ElementModes::READWRITE | embed::ElementModes::TRUNCATE );
if ( !xVerStream.is() )
throw uno::RuntimeException();
Reference< io::XOutputStream > xOut = xVerStream->getOutputStream();
if ( !xOut.is() )
throw uno::RuntimeException(); // the stream was successfully opened for writing already
Reference< io::XActiveDataSource > xSrc( xWriter, uno::UNO_QUERY );
xSrc->setOutputStream(xOut);
Reference< XDocumentHandler > xHandler( xWriter, uno::UNO_QUERY );
rtl::Reference< XMLVersionListExport > xExp( new XMLVersionListExport( xContext, rVersions, sVerName, xHandler ) );
xExp->exportDoc( ::xmloff::token::XML_VERSION );
xVerStream.clear(); // use refcounting for now to dispose
}
catch( uno::Exception& )
{
// TODO: error handling
}
}
}
uno::Sequence< util::RevisionTag > SAL_CALL XMLVersionListPersistence::load( const uno::Reference< embed::XStorage >& xRoot )
throw (css::container::NoSuchElementException, css::io::IOException, css::uno::Exception, css::uno::RuntimeException, std::exception)
{
css::uno::Sequence < css::util::RevisionTag > aVersions;
const OUString sDocName( XMLN_VERSIONSLIST );
uno::Reference< container::XNameAccess > xRootNames( xRoot, uno::UNO_QUERY );
try {
if ( xRootNames.is() && xRootNames->hasByName( sDocName ) && xRoot->isStreamElement( sDocName ) )
{
Reference< uno::XComponentContext > xContext = comphelper::getProcessComponentContext();
InputSource aParserInput;
uno::Reference< beans::XPropertySet > xProps( xRoot, uno::UNO_QUERY );
OSL_ENSURE( xProps.is(), "Storage must implement XPropertySet!\n" );
if ( xProps.is() )
{
try {
xProps->getPropertyValue("URL") >>= aParserInput.sSystemId;
}
catch( uno::Exception& )
{}
}
uno::Reference< io::XStream > xDocStream = xRoot->openStreamElement(
sDocName,
embed::ElementModes::READ );
if ( !xDocStream.is() )
throw uno::RuntimeException();
aParserInput.aInputStream = xDocStream->getInputStream();
OSL_ENSURE( aParserInput.aInputStream.is(),
"The stream was successfully opened for reading, the input part must be accessible!\n" );
if ( !aParserInput.aInputStream.is() )
throw uno::RuntimeException();
// get filter
Reference< XDocumentHandler > xFilter = new XMLVersionListImport( xContext, aVersions );
// connect parser and filter
Reference< XParser > xParser = xml::sax::Parser::create(xContext);
xParser->setDocumentHandler( xFilter );
// parse
try
{
xParser->parseStream( aParserInput );
}
catch( SAXParseException& ) {}
catch( SAXException& ) {}
catch( io::IOException& ) {}
}
}
catch( uno::Exception& )
{
// TODO: error handling
}
return aVersions;
}
OUString XMLVersionListPersistence::getImplementationName()
throw (css::uno::RuntimeException, std::exception)
{
return OUString("XMLVersionListPersistence");
}
sal_Bool XMLVersionListPersistence::supportsService(
OUString const & ServiceName)
throw (css::uno::RuntimeException, std::exception)
{
return cppu::supportsService(this, ServiceName);
}
css::uno::Sequence<OUString>
XMLVersionListPersistence::getSupportedServiceNames()
throw (css::uno::RuntimeException, std::exception)
{
return css::uno::Sequence<OUString>{
"com.sun.star.document.DocumentRevisionListPersistence"};
}
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface * SAL_CALL
XMLVersionListPersistence_get_implementation(
css::uno::XComponentContext *,
css::uno::Sequence<css::uno::Any> const &)
{
return cppu::acquire(new XMLVersionListPersistence());
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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