/* -*- 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 <i18nlangtag/languagetag.hxx>
#include <rtl/ustrbuf.hxx>
#include <sal/log.hxx>
 
#include <utility>
#include <xmloff/xmlmetae.hxx>
#include <xmloff/xmlexp.hxx>
#include <xmloff/namespacemap.hxx>
#include <xmloff/xmlnamespace.hxx>
 
#include <com/sun/star/beans/XPropertyAccess.hpp>
#include <com/sun/star/beans/StringPair.hpp>
#include <com/sun/star/document/XDocumentProperties.hpp>
#include <com/sun/star/util/DateTime.hpp>
#include <com/sun/star/util/Duration.hpp>
#include <com/sun/star/xml/sax/XSAXSerializable.hpp>
 
#include <sax/tools/converter.hxx>
 
#include <comphelper/sequence.hxx>
#include <unotools/docinfohelper.hxx>
 
using namespace com::sun::star;
using namespace ::xmloff::token;
 
static void lcl_AddTwoDigits( OUStringBuffer& rStr, sal_Int32 nVal )
{
    if ( nVal < 10 )
        rStr.append( '0' );
    rStr.append( nVal );
}
 
OUString
SvXMLMetaExport::GetISODateTimeString( const util::DateTime& rDateTime )
{
    //  return ISO date string "YYYY-MM-DDThh:mm:ss"
 
    OUStringBuffer sTmp =
        OUString::number( static_cast<sal_Int32>(rDateTime.Year) )
        + "-";
    lcl_AddTwoDigits( sTmp, rDateTime.Month );
    sTmp.append( '-' );
    lcl_AddTwoDigits( sTmp, rDateTime.Day );
    sTmp.append( 'T' );
    lcl_AddTwoDigits( sTmp, rDateTime.Hours );
    sTmp.append( ':' );
    lcl_AddTwoDigits( sTmp, rDateTime.Minutes );
    sTmp.append( ':' );
    lcl_AddTwoDigits( sTmp, rDateTime.Seconds );
 
    return sTmp.makeStringAndClear();
}
 
void SvXMLMetaExport::SimpleStringElement( const OUString& rText,
        sal_uInt16 nNamespace, enum XMLTokenEnum eElementName )
{
    if ( !rText.isEmpty() ) {
        SvXMLElementExport aElem( mrExport, nNamespace, eElementName,
                                  true, false );
        mrExport.Characters( rText );
    }
}
 
void SvXMLMetaExport::SimpleDateTimeElement( const util::DateTime & rDate,
        sal_uInt16 nNamespace, enum XMLTokenEnum eElementName )
{
    if (rDate.Month != 0) { // invalid dates are 0-0-0
        OUString sValue = GetISODateTimeString( rDate );
        if ( !sValue.isEmpty() ) {
            SvXMLElementExport aElem( mrExport, nNamespace, eElementName,
                                      true, false );
            mrExport.Characters( sValue );
        }
    }
}
 
void SvXMLMetaExport::MExport_()
{
    bool bRemovePersonalInfo = SvtSecurityOptions::IsOptionSet(SvtSecurityOptions::EOption::DocWarnRemovePersonalInfo );
    bool bRemoveUserInfo = bRemovePersonalInfo && !SvtSecurityOptions::IsOptionSet(SvtSecurityOptions::EOption::DocWarnKeepDocUserInfo);
 
    //  generator
    {
        SvXMLElementExport aElem( mrExport, XML_NAMESPACE_META, XML_GENERATOR,
                                  true, true );
        mrExport.Characters( ::utl::DocInfoHelper::GetGeneratorString() );
    }
 
    //  document title
    SimpleStringElement  ( mxDocProps->getTitle(),
                           XML_NAMESPACE_DC, XML_TITLE );
 
    //  description
    SimpleStringElement  ( mxDocProps->getDescription(),
                           XML_NAMESPACE_DC, XML_DESCRIPTION );
 
    //  subject
    SimpleStringElement  ( mxDocProps->getSubject(),
                           XML_NAMESPACE_DC, XML_SUBJECT );
 
    //  created...
    if (!bRemoveUserInfo)
    {
        SimpleStringElement(mxDocProps->getAuthor(), XML_NAMESPACE_META, XML_INITIAL_CREATOR);
        SimpleDateTimeElement(mxDocProps->getCreationDate(), XML_NAMESPACE_META, XML_CREATION_DATE);
 
        //  modified...
        SimpleStringElement(mxDocProps->getModifiedBy(), XML_NAMESPACE_DC, XML_CREATOR);
        SimpleDateTimeElement(mxDocProps->getModificationDate(), XML_NAMESPACE_DC, XML_DATE);
 
        //  printed...
        SimpleStringElement(mxDocProps->getPrintedBy(), XML_NAMESPACE_META, XML_PRINTED_BY);
        SimpleDateTimeElement(mxDocProps->getPrintDate(), XML_NAMESPACE_META, XML_PRINT_DATE);
    }
 
    //  keywords
    const uno::Sequence< OUString > keywords = mxDocProps->getKeywords();
    for (const auto& rKeyword : keywords) {
        SvXMLElementExport aKwElem( mrExport, XML_NAMESPACE_META, XML_KEYWORD,
                                    true, false );
        mrExport.Characters( rKeyword );
    }
 
    //  document language
    {
        OUString sValue = LanguageTag( mxDocProps->getLanguage()).getBcp47( false);
        if (!sValue.isEmpty()) {
            SvXMLElementExport aElem( mrExport, XML_NAMESPACE_DC, XML_LANGUAGE,
                                      true, false );
            mrExport.Characters( sValue );
        }
    }
 
    //  editing cycles
    if (!bRemovePersonalInfo)
    {
        SvXMLElementExport aElem( mrExport,
                                  XML_NAMESPACE_META, XML_EDITING_CYCLES,
                                  true, false );
        mrExport.Characters( OUString::number(
            mxDocProps->getEditingCycles() ) );
    }
 
    //  editing duration
    //  property is a int32 (seconds)
    if (!bRemovePersonalInfo)
    {
        sal_Int32 secs = mxDocProps->getEditingDuration();
        SvXMLElementExport aElem( mrExport,
                                  XML_NAMESPACE_META, XML_EDITING_DURATION,
                                  true, false );
        OUStringBuffer buf;
        ::sax::Converter::convertDuration(buf, util::Duration(
                    false, 0, 0, 0, secs/3600, (secs%3600)/60, secs%60, 0));
        mrExport.Characters(buf.makeStringAndClear());
    }
 
    //  default target
    const OUString sDefTarget = mxDocProps->getDefaultTarget();
    if ( !sDefTarget.isEmpty() )
    {
        mrExport.AddAttribute( XML_NAMESPACE_OFFICE, XML_TARGET_FRAME_NAME,
                               sDefTarget );
 
        //! define strings for xlink:show values
        const XMLTokenEnum eShow = sDefTarget == "_blank" ? XML_NEW : XML_REPLACE;
        mrExport.AddAttribute( XML_NAMESPACE_XLINK, XML_SHOW, eShow );
 
        SvXMLElementExport aElem( mrExport,
                                  XML_NAMESPACE_META,XML_HYPERLINK_BEHAVIOUR,
                                  true, false );
    }
 
    //  auto-reload
    const OUString sReloadURL = mxDocProps->getAutoloadURL();
    const sal_Int32 sReloadDelay = mxDocProps->getAutoloadSecs();
    if (sReloadDelay != 0 || !sReloadURL.isEmpty())
    {
        mrExport.AddAttribute( XML_NAMESPACE_XLINK, XML_HREF,
                              mrExport.GetRelativeReference( sReloadURL ) );
 
        OUStringBuffer buf;
        ::sax::Converter::convertDuration(buf, util::Duration(false, 0, 0, 0,
                sReloadDelay/3600, (sReloadDelay%3600)/60, sReloadDelay%60, 0));
        mrExport.AddAttribute( XML_NAMESPACE_META, XML_DELAY,
            buf.makeStringAndClear());
 
        SvXMLElementExport aElem( mrExport, XML_NAMESPACE_META, XML_AUTO_RELOAD,
                                  true, false );
    }
 
    //  template
    const OUString sTplPath = mxDocProps->getTemplateURL();
    if ( !bRemovePersonalInfo && !sTplPath.isEmpty() )
    {
        mrExport.AddAttribute( XML_NAMESPACE_XLINK, XML_TYPE, XML_SIMPLE );
        mrExport.AddAttribute( XML_NAMESPACE_XLINK, XML_ACTUATE, XML_ONREQUEST );
 
        //  template URL
        mrExport.AddAttribute( XML_NAMESPACE_XLINK, XML_HREF,
                              mrExport.GetRelativeReference(sTplPath) );
 
        //  template name
        mrExport.AddAttribute( XML_NAMESPACE_XLINK, XML_TITLE,
                              mxDocProps->getTemplateName() );
 
        //  template date
        mrExport.AddAttribute( XML_NAMESPACE_META, XML_DATE,
                GetISODateTimeString( mxDocProps->getTemplateDate() ) );
 
        SvXMLElementExport aElem( mrExport, XML_NAMESPACE_META, XML_TEMPLATE,
                                  true, false );
    }
 
    //  user defined fields
    uno::Reference< beans::XPropertyAccess > xUserDefined(
        mxDocProps->getUserDefinedProperties(), uno::UNO_QUERY_THROW);
    const uno::Sequence< beans::PropertyValue > props =
        xUserDefined->getPropertyValues();
    for (const auto& rProp : props) {
        OUStringBuffer sValueBuffer;
        OUStringBuffer sType;
        if (!::sax::Converter::convertAny(sValueBuffer, sType, rProp.Value))
        {
            continue;
        }
        mrExport.AddAttribute( XML_NAMESPACE_META, XML_NAME, rProp.Name );
        mrExport.AddAttribute( XML_NAMESPACE_META, XML_VALUE_TYPE,
                              sType.makeStringAndClear() );
        SvXMLElementExport aElem( mrExport, XML_NAMESPACE_META,
                                  XML_USER_DEFINED, true, false );
        mrExport.Characters( sValueBuffer.makeStringAndClear() );
    }
 
    const uno::Sequence< beans::NamedValue > aDocStatistic =
            mxDocProps->getDocumentStatistics();
    // write document statistic if there is any provided
    if ( !aDocStatistic.hasElements() )
        return;
 
    for ( const auto& rDocStat : aDocStatistic )
    {
        sal_Int32 nValue = 0;
        if ( rDocStat.Value >>= nValue )
        {
            OUString aValue = OUString::number( nValue );
            if ( rDocStat.Name == "TableCount" )
                mrExport.AddAttribute(
                    XML_NAMESPACE_META, XML_TABLE_COUNT, aValue );
            else if ( rDocStat.Name == "ObjectCount" )
                mrExport.AddAttribute(
                    XML_NAMESPACE_META, XML_OBJECT_COUNT, aValue );
            else if ( rDocStat.Name == "ImageCount" )
                mrExport.AddAttribute(
                    XML_NAMESPACE_META, XML_IMAGE_COUNT, aValue );
            else if ( rDocStat.Name == "PageCount" )
                mrExport.AddAttribute(
                    XML_NAMESPACE_META, XML_PAGE_COUNT, aValue );
            else if ( rDocStat.Name == "ParagraphCount" )
                mrExport.AddAttribute(
                    XML_NAMESPACE_META, XML_PARAGRAPH_COUNT, aValue );
            else if ( rDocStat.Name == "WordCount" )
                mrExport.AddAttribute(
                    XML_NAMESPACE_META, XML_WORD_COUNT, aValue );
            else if ( rDocStat.Name == "CharacterCount" )
                mrExport.AddAttribute(
                    XML_NAMESPACE_META, XML_CHARACTER_COUNT, aValue );
            else if ( rDocStat.Name == "CellCount" )
                mrExport.AddAttribute(
                    XML_NAMESPACE_META, XML_CELL_COUNT, aValue );
            else
            {
                SAL_WARN("xmloff", "Unknown statistic value!");
            }
        }
    }
    SvXMLElementExport aElem( mrExport,
        XML_NAMESPACE_META, XML_DOCUMENT_STATISTIC, true, true );
}
 
const char s_xmlns[] = "xmlns";
const char s_xmlns2[] = "xmlns:";
const char s_meta[] = "meta:";
const char s_href[] = "xlink:href";
 
SvXMLMetaExport::SvXMLMetaExport(
        SvXMLExport& i_rExp,
        uno::Reference<document::XDocumentProperties> i_rDocProps ) :
    mrExport( i_rExp ),
    mxDocProps(std::move( i_rDocProps )),
    m_level( 0 )
{
    assert(mxDocProps.is());
}
 
SvXMLMetaExport::~SvXMLMetaExport()
{
}
 
void SvXMLMetaExport::Export()
{
    uno::Reference< xml::sax::XSAXSerializable> xSAXable(mxDocProps,
        uno::UNO_QUERY);
    bool bRemovePersonalInfo
        = SvtSecurityOptions::IsOptionSet(SvtSecurityOptions::EOption::DocWarnRemovePersonalInfo);
    if (xSAXable.is() && !bRemovePersonalInfo) {
        ::std::vector< beans::StringPair > namespaces;
        const SvXMLNamespaceMap & rNsMap(mrExport.GetNamespaceMap());
        for (sal_uInt16 key = rNsMap.GetFirstKey();
             key != USHRT_MAX; key = rNsMap.GetNextKey(key)) {
            beans::StringPair ns;
            const OUString attrname = rNsMap.GetAttrNameByKey(key);
            if (!attrname.startsWith(s_xmlns2, &ns.First)
                || attrname == s_xmlns) // default initialized empty string
            {
                assert(!"namespace attribute not starting with xmlns unexpected");
            }
            ns.Second = rNsMap.GetNameByKey(key);
            namespaces.push_back(ns);
        }
        xSAXable->serialize(this, comphelper::containerToSequence(namespaces));
    } else {
        // office:meta
        SvXMLElementExport aElem( mrExport, XML_NAMESPACE_OFFICE, XML_META,
                                  true, true );
        // fall back to using public interface of XDocumentProperties
        MExport_();
    }
}
 
// css::xml::sax::XDocumentHandler:
void SAL_CALL
SvXMLMetaExport::startDocument()
{
    // ignore: has already been done by SvXMLExport::exportDoc
    assert(m_level == 0 && "SvXMLMetaExport: level error");
}
 
void SAL_CALL
SvXMLMetaExport::endDocument()
{
    // ignore: will be done by SvXMLExport::exportDoc
    assert(m_level == 0 && "SvXMLMetaExport: level error");
}
 
// unfortunately, this method contains far too much ugly namespace mangling.
void SAL_CALL
SvXMLMetaExport::startElement(const OUString & i_rName,
    const uno::Reference< xml::sax::XAttributeList > & i_xAttribs)
{
 
    if (m_level == 0) {
        // namespace decls: default ones have been written at the root element
        // non-default ones must be preserved here
        const sal_Int16 nCount = i_xAttribs->getLength();
        for (sal_Int16 i = 0; i < nCount; ++i) {
            const OUString name(i_xAttribs->getNameByIndex(i));
            if (name.startsWith(s_xmlns)) {
                bool found(false);
                const SvXMLNamespaceMap & rNsMap(mrExport.GetNamespaceMap());
                for (sal_uInt16 key = rNsMap.GetFirstKey();
                     key != USHRT_MAX; key = rNsMap.GetNextKey(key)) {
                    if (name == rNsMap.GetAttrNameByKey(key)) {
                        found = true;
                        break;
                    }
                }
                if (!found) {
                    m_preservedNSs.emplace_back(name,
                        i_xAttribs->getValueByIndex(i));
                }
            }
        }
        // ignore the root: it has been written already
        ++m_level;
        return;
    }
 
    if (m_level == 1) {
        // attach preserved namespace decls from root node here
        for (const auto& rPreservedNS : m_preservedNSs) {
            const OUString ns(rPreservedNS.First);
            bool found(false);
            // but only if it is not already there
            const sal_Int16 nCount = i_xAttribs->getLength();
            for (sal_Int16 i = 0; i < nCount; ++i) {
                const OUString name(i_xAttribs->getNameByIndex(i));
                if (ns == name) {
                    found = true;
                    break;
                }
            }
            if (!found) {
                mrExport.AddAttribute(ns, rPreservedNS.Second);
            }
        }
    }
 
    // attach the attributes
    if (i_rName.startsWith(s_meta)) {
        // special handling for all elements that may have
        // xlink:href attributes; these must be made relative
        const sal_Int16 nLength = i_xAttribs->getLength();
        for (sal_Int16 i = 0; i < nLength; ++i) {
            const OUString name (i_xAttribs->getNameByIndex (i));
            OUString value(i_xAttribs->getValueByIndex(i));
            if (name.startsWith(s_href)) {
                value = mrExport.GetRelativeReference(value);
            }
            mrExport.AddAttribute(name, value);
        }
    } else {
        const sal_Int16 nLength = i_xAttribs->getLength();
        for (sal_Int16 i = 0; i < nLength; ++i) {
            const OUString name  (i_xAttribs->getNameByIndex(i));
            const OUString value (i_xAttribs->getValueByIndex(i));
            mrExport.AddAttribute(name, value);
        }
    }
 
    // finally, start the element
    // #i107240# no whitespace here, because the DOM may already contain
    // whitespace, which is not cleared when loading and thus accumulates.
    mrExport.StartElement(i_rName, m_level <= 1);
    ++m_level;
}
 
void SAL_CALL
SvXMLMetaExport::endElement(const OUString & i_rName)
{
    --m_level;
    if (m_level == 0) {
        // ignore the root; see startElement
        return;
    }
    assert(m_level >= 0 && "SvXMLMetaExport: level error");
    mrExport.EndElement(i_rName, false);
}
 
void SAL_CALL
SvXMLMetaExport::characters(const OUString & i_rChars)
{
    mrExport.Characters(i_rChars);
}
 
void SAL_CALL
SvXMLMetaExport::ignorableWhitespace(const OUString & /*i_rWhitespaces*/)
{
    mrExport.IgnorableWhitespace(/*i_rWhitespaces*/);
}
 
void SAL_CALL
SvXMLMetaExport::processingInstruction(const OUString &,
    const OUString &)
{
    // ignore; the exporter cannot handle these
}
 
void SAL_CALL
SvXMLMetaExport::setDocumentLocator(const uno::Reference<xml::sax::XLocator>&)
{
    // nothing to do here, move along...
}
 
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

V530 The return value of function 'append' is required to be utilized.

V530 The return value of function 'append' is required to be utilized.

V530 The return value of function 'append' is required to be utilized.

V530 The return value of function 'append' is required to be utilized.

V530 The return value of function 'append' is required to be utilized.

V530 The return value of function 'append' is required to be utilized.

V547 Expression is always false.

V581 The conditional expressions of the 'if' statements situated alongside each other are identical. Check lines: 154, 165.