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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* This file is part of the libvisio 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/.
*/
#include "VSDXMLHelper.h"
#include <memory>
#include <sstream>
#include <istream>
#include <vector>
#include <boost/algorithm/string.hpp>
#include <librevenge-stream/librevenge-stream.h>
#include "libvisio_utils.h"
#include "libvisio_xml.h"
// VSDXRelationship
libvisio::VSDXRelationship::VSDXRelationship(xmlTextReaderPtr reader)
: m_id(), m_type(), m_target()
{
if (reader)
// TODO: check whether we are actually parsing "Relationship" element
{
while (xmlTextReaderMoveToNextAttribute(reader))
{
const xmlChar *name = xmlTextReaderConstName(reader);
const xmlChar *value = xmlTextReaderConstValue(reader);
if (xmlStrEqual(name, BAD_CAST("Id")))
m_id = (const char *)value;
else if (xmlStrEqual(name, BAD_CAST("Type")))
m_type = (const char *)value;
else if (xmlStrEqual(name, BAD_CAST("Target")))
m_target = (const char *)value;
}
// VSD_DEBUG_MSG(("Relationship : %s type: %s target: %s\n", m_id.c_str(), m_type.c_str(), m_target.c_str()));
}
}
libvisio::VSDXRelationship::VSDXRelationship()
: m_id(), m_type(), m_target()
{
}
libvisio::VSDXRelationship::~VSDXRelationship()
{
}
void libvisio::VSDXRelationship::rebaseTarget(const char *baseDir)
{
std::string target(baseDir ? baseDir : "");
if (!target.empty())
target += "/";
target += m_target;
// normalize path by resolving any ".." or "." segments
// and eliminating duplicate path separators
std::vector<std::string> segments;
boost::split(segments, target, boost::is_any_of("/\\"));
std::vector<std::string> normalizedSegments;
for (auto &segment : segments)
{
if (segment == "..")
normalizedSegments.pop_back();
else if (segment != "." && !segment.empty())
normalizedSegments.push_back(segment);
}
target.clear();
for (const auto &normalizedSegment : normalizedSegments)
{
if (!target.empty())
target.append("/");
target.append(normalizedSegment);
}
// VSD_DEBUG_MSG(("VSDXRelationship::rebaseTarget %s -> %s\n", m_target.c_str(), target.c_str()));
m_target = target;
}
// VSDXRelationships
libvisio::VSDXRelationships::VSDXRelationships(librevenge::RVNGInputStream *input)
: m_relsByType(), m_relsById()
{
if (input)
{
const std::shared_ptr<xmlTextReader> reader(
xmlReaderForStream(input, nullptr, nullptr, XML_PARSE_NOBLANKS|XML_PARSE_NOENT|XML_PARSE_NONET|XML_PARSE_RECOVER),
xmlFreeTextReader);
if (reader)
{
bool inRelationships = false;
int ret = xmlTextReaderRead(reader.get());
while (ret == 1)
{
const xmlChar *name = xmlTextReaderConstName(reader.get());
if (name)
{
if (xmlStrEqual(name, BAD_CAST("Relationships")))
{
if (xmlTextReaderNodeType(reader.get()) == 1)
{
// VSD_DEBUG_MSG(("Relationships ON\n"));
inRelationships = true;
}
else if (xmlTextReaderNodeType(reader.get()) == 15)
{
// VSD_DEBUG_MSG(("Relationships OFF\n"));
inRelationships = false;
}
}
else if (xmlStrEqual(name, BAD_CAST("Relationship")))
{
if (inRelationships)
{
VSDXRelationship relationship(reader.get());
m_relsByType[relationship.getType()] = relationship;
m_relsById[relationship.getId()] = relationship;
}
}
}
ret = xmlTextReaderRead(reader.get());
}
}
}
}
libvisio::VSDXRelationships::~VSDXRelationships()
{
}
void libvisio::VSDXRelationships::rebaseTargets(const char *baseDir)
{
std::map<std::string, libvisio::VSDXRelationship>::iterator iter;
for (iter = m_relsByType.begin(); iter != m_relsByType.end(); ++iter)
iter->second.rebaseTarget(baseDir);
for (iter = m_relsById.begin(); iter != m_relsById.end(); ++iter)
iter->second.rebaseTarget(baseDir);
}
const libvisio::VSDXRelationship *libvisio::VSDXRelationships::getRelationshipByType(const char *type) const
{
if (!type)
return nullptr;
auto iter = m_relsByType.find(type);
if (iter != m_relsByType.end())
return &(iter->second);
return nullptr;
}
const libvisio::VSDXRelationship *libvisio::VSDXRelationships::getRelationshipById(const char *id) const
{
if (!id)
return nullptr;
auto iter = m_relsById.find(id);
if (iter != m_relsById.end())
return &(iter->second);
return nullptr;
}
/* vim:set shiftwidth=2 softtabstop=2 expandtab: */
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