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/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#include "XSLTUtils.h"
#include "log.h"
#include <libxslt/xslt.h>
#include <libxslt/transform.h>
#ifndef TARGET_WINDOWS
#include <iostream>
#endif
#define TMP_BUF_SIZE 512
void err(void *ctx, const char *msg, ...) {
char string[TMP_BUF_SIZE];
va_list arg_ptr;
va_start(arg_ptr, msg);
vsnprintf(string, TMP_BUF_SIZE, msg, arg_ptr);
va_end(arg_ptr);
CLog::Log(LOGDEBUG, "XSLT: {}", string);
}
XSLTUtils::XSLTUtils()
{
// initialize libxslt
xmlSubstituteEntitiesDefault(1);
xmlLoadExtDtdDefaultValue = 0;
xsltSetGenericErrorFunc(NULL, err);
}
XSLTUtils::~XSLTUtils()
{
if (m_xmlInput)
xmlFreeDoc(m_xmlInput);
if (m_xmlOutput)
xmlFreeDoc(m_xmlOutput);
if (m_xsltStylesheet)
xsltFreeStylesheet(m_xsltStylesheet);
}
bool XSLTUtils::XSLTTransform(std::string& output)
{
const char *params[16+1];
params[0] = NULL;
m_xmlOutput = xsltApplyStylesheet(m_xsltStylesheet, m_xmlInput, params);
if (!m_xmlOutput)
{
CLog::Log(LOGDEBUG, "XSLT: xslt transformation failed");
return false;
}
xmlChar *xmlResultBuffer = NULL;
int xmlResultLength = 0;
int res = xsltSaveResultToString(&xmlResultBuffer, &xmlResultLength, m_xmlOutput, m_xsltStylesheet);
if (res == -1)
{
xmlFree(xmlResultBuffer);
return false;
}
output.append((const char *)xmlResultBuffer, xmlResultLength);
xmlFree(xmlResultBuffer);
return true;
}
bool XSLTUtils::SetInput(const std::string& input)
{
m_xmlInput = xmlParseMemory(input.c_str(), input.size());
if (!m_xmlInput)
return false;
return true;
}
bool XSLTUtils::SetStylesheet(const std::string& stylesheet)
{
if (m_xsltStylesheet) {
xsltFreeStylesheet(m_xsltStylesheet);
m_xsltStylesheet = NULL;
}
m_xmlStylesheet = xmlParseMemory(stylesheet.c_str(), stylesheet.size());
if (!m_xmlStylesheet)
{
CLog::Log(LOGDEBUG, "could not xmlParseMemory stylesheetdoc");
return false;
}
m_xsltStylesheet = xsltParseStylesheetDoc(m_xmlStylesheet);
if (!m_xsltStylesheet) {
CLog::Log(LOGDEBUG, "could not parse stylesheetdoc");
xmlFree(m_xmlStylesheet);
m_xmlStylesheet = NULL;
return false;
}
return true;
}
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