sync with upstream

1 files changed, 103 insertions, 0 deletions

diff --git a/xbmc/utils/XSLTUtils.cpp b/xbmc/utils/XSLTUtils.cpp
new file mode 100644
index 0000000..b2ef27b
--- /dev/null
+++ b/xbmc/utils/XSLTUtils.cpp
@@ -0,0 +1,103 @@
+/*
+ *  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: %s", 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;
+}