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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 <sal/config.h>
#include <algorithm>
#include <string_view>
#include <oox/core/relations.hxx>
namespace oox::core {
namespace {
std::u16string_view lclRemoveFileName( std::u16string_view rPath )
{
size_t idx = rPath.rfind( '/' );
if (idx == std::u16string_view::npos)
return std::u16string_view();
return rPath.substr( 0, idx );
}
OUString lclAppendFileName( std::u16string_view rPath, const OUString& rFileName )
{
return rPath.empty() ? rFileName :
rPath + OUStringChar('/') + rFileName;
}
OUString createOfficeDocRelationTypeTransitional(std::u16string_view rType)
{
return OUString::Concat("http://schemas.openxmlformats.org/officeDocument/2006/relationships/")
+ rType;
}
OUString createOfficeDocRelationTypeStrict(std::u16string_view rType)
{
return OUString::Concat("http://purl.oclc.org/ooxml/officeDocument/relationships/") + rType;
}
}
Relations::Relations( const OUString& rFragmentPath )
: maFragmentPath( rFragmentPath )
{
}
const Relation* Relations::getRelationFromRelId( const OUString& rId ) const
{
::std::map< OUString, Relation >::const_iterator aIt = maMap.find( rId );
return (aIt == maMap.end()) ? nullptr : &aIt->second;
}
const Relation* Relations::getRelationFromFirstType( std::u16string_view rType ) const
{
for (auto const& elem : maMap)
if( elem.second.maType.equalsIgnoreAsciiCase( rType ) )
return &elem.second;
return nullptr;
}
RelationsRef Relations::getRelationsFromTypeFromOfficeDoc( std::u16string_view rType ) const
{
RelationsRef xRelations = std::make_shared<Relations>( maFragmentPath );
for (auto const& elem : maMap)
if( elem.second.maType.equalsIgnoreAsciiCase( createOfficeDocRelationTypeTransitional(rType) ) ||
elem.second.maType.equalsIgnoreAsciiCase( createOfficeDocRelationTypeStrict(rType) ))
xRelations->maMap[ elem.first ] = elem.second;
return xRelations;
}
OUString Relations::getExternalTargetFromRelId( const OUString& rRelId ) const
{
const Relation* pRelation = getRelationFromRelId( rRelId );
return (pRelation && pRelation->mbExternal) ? pRelation->maTarget : OUString();
}
OUString Relations::getInternalTargetFromRelId( const OUString& rRelId ) const
{
const Relation* pRelation = getRelationFromRelId( rRelId );
return (pRelation && !pRelation->mbExternal) ? pRelation->maTarget : OUString();
}
OUString Relations::getFragmentPathFromRelation( const Relation& rRelation ) const
{
// no target, no fragment path
if( rRelation.mbExternal || rRelation.maTarget.isEmpty() )
return OUString();
// absolute target: return it without leading slash (#i100978)
if( rRelation.maTarget[ 0 ] == '/' )
return rRelation.maTarget.copy( 1 );
// empty fragment path: return target
if( maFragmentPath.isEmpty() )
return rRelation.maTarget;
// resolve relative target path according to base path
OUString aPath( lclRemoveFileName( maFragmentPath ) );
sal_Int32 nStartPos = 0;
while( nStartPos < rRelation.maTarget.getLength() )
{
sal_Int32 nSepPos = rRelation.maTarget.indexOf( '/', nStartPos );
if( nSepPos < 0 ) nSepPos = rRelation.maTarget.getLength();
// append next directory name from aTarget to aPath, or remove last directory on '../'
if( (nStartPos + 2 == nSepPos) && (rRelation.maTarget[ nStartPos ] == '.') && (rRelation.maTarget[ nStartPos + 1 ] == '.') )
aPath = lclRemoveFileName( aPath );
else
aPath = lclAppendFileName( aPath, rRelation.maTarget.copy( nStartPos, nSepPos - nStartPos ) );
// move nStartPos to next directory name
nStartPos = nSepPos + 1;
}
return aPath;
}
OUString Relations::getFragmentPathFromRelId( const OUString& rRelId ) const
{
const Relation* pRelation = getRelationFromRelId( rRelId );
return pRelation ? getFragmentPathFromRelation( *pRelation ) : OUString();
}
OUString Relations::getFragmentPathFromFirstType( std::u16string_view rType ) const
{
const Relation* pRelation = getRelationFromFirstType( rType );
return pRelation ? getFragmentPathFromRelation( *pRelation ) : OUString();
}
OUString Relations::getFragmentPathFromFirstTypeFromOfficeDoc( std::u16string_view rType ) const
{
OUString aTransitionalType(createOfficeDocRelationTypeTransitional(rType));
const Relation* pRelation = getRelationFromFirstType( aTransitionalType );
if(!pRelation)
{
OUString aStrictType = createOfficeDocRelationTypeStrict(rType);
pRelation = getRelationFromFirstType( aStrictType );
}
return pRelation ? getFragmentPathFromRelation( *pRelation ) : OUString();
}
} // namespace oox::core
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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