/*
* The ManaPlus Client
* Copyright (C) 2004-2009 The Mana World Development Team
* Copyright (C) 2009-2010 The Mana Developers
* Copyright (C) 2011-2017 The ManaPlus Developers
*
* This file is part of The ManaPlus Client.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
#ifdef ENABLE_LIBXML
#include "utils/xml/libxml.h"
#include "fs/virtfstools.h"
#include "utils/checkutils.h"
#include "utils/fuzzer.h"
#include "utils/stringutils.h"
#include "utils/translation/podict.h"
#include "debug.h"
namespace
{
bool valid = false;
} // namespace
static void xmlErrorLogger(void *ctx A_UNUSED, const char *msg A_UNUSED, ...)
#ifdef __GNUC__
#ifdef __OpenBSD__
__attribute__((__format__(printf, 2, 3)))
#else // __OpenBSD__
__attribute__((__format__(gnu_printf, 2, 3)))
#endif // __OpenBSD__
#endif // __GNUC__
;
static void xmlErrorLogger(void *ctx A_UNUSED, const char *msg, ...)
{
if (!msg)
return;
size_t size = 1024;
const size_t msgSize = strlen(msg);
if (msgSize * 3 > size)
size = msgSize * 3;
char* buf = new char[size + 1];
va_list ap;
// Use a temporary buffer to fill in the variables
va_start(ap, msg);
vsnprintf(buf, size, msg, ap);
buf[size] = 0;
va_end(ap);
if (logger)
logger->log_r("%s", buf);
else
puts(buf);
// Delete temporary buffer
delete [] buf;
valid = false;
}
namespace XML
{
Document::Document(const std::string &filename,
const UseResman useResman,
const SkipError skipError) :
Resource(),
mDoc(nullptr),
mIsValid(false)
{
#ifdef USE_FUZZER
if (Fuzzer::conditionTerminate(filename.c_str()))
return;
#endif // USE_FUZZER
BLOCK_START("XML::Document::Document")
int size = 0;
char *data = nullptr;
valid = true;
if (useResman == UseResman_true)
{
data = static_cast(VirtFs::loadFile(
filename.c_str(), size));
}
else
{
std::ifstream file;
file.open(filename.c_str(), std::ios::in);
if (file.is_open())
{
// Get length of file
file.seekg(0, std::ios::end);
size = CAST_S32(file.tellg());
if (size < 0)
{
reportAlways("Error loading XML file %s",
filename.c_str());
}
else
{
file.seekg(0, std::ios::beg);
data = static_cast(malloc(size));
file.read(data, size);
}
file.close();
}
else
{
reportAlways("Error loading XML file %s", filename.c_str());
}
}
if (data)
{
mDoc = xmlParseMemory(data, size);
free(data);
if (!mDoc)
{
reportAlways("Error parsing XML file %s", filename.c_str());
}
}
else if (skipError == SkipError_false)
{
reportAlways("Error loading XML file %s", filename.c_str());
}
mIsValid = valid;
BLOCK_END("XML::Document::Document")
}
Document::Document(const char *const data, const int size) :
mDoc(data ? xmlParseMemory(data, size) : nullptr),
mIsValid(true)
{
}
Document::~Document()
{
if (mDoc)
xmlFreeDoc(mDoc);
}
XmlNodePtr Document::rootNode()
{
return mDoc ? xmlDocGetRootElement(mDoc) : nullptr;
}
int getProperty(const XmlNodePtr node,
const char *const name,
int def)
{
int &ret = def;
xmlChar *const prop = XmlGetProp(node, name);
if (prop)
{
ret = atoi(reinterpret_cast(prop));
xmlFree(prop);
}
return ret;
}
int getIntProperty(const XmlNodePtr node,
const char *const name,
int def,
const int min,
const int max)
{
int &ret = def;
xmlChar *const prop = XmlGetProp(node, name);
if (prop)
{
ret = atoi(reinterpret_cast(prop));
xmlFree(prop);
}
if (ret < min)
ret = min;
else if (ret > max)
ret = max;
return ret;
}
double getFloatProperty(const XmlNodePtr node,
const char *const name,
double def)
{
double &ret = def;
xmlChar *const prop = XmlGetProp(node, name);
if (prop)
{
ret = atof(reinterpret_cast(prop));
xmlFree(prop);
}
return ret;
}
std::string getProperty(const XmlNodePtr node,
const char *const name,
const std::string &def)
{
xmlChar *const prop = XmlGetProp(node, name);
if (prop)
{
std::string val = reinterpret_cast(prop);
xmlFree(prop);
return val;
}
return def;
}
std::string langProperty(const XmlNodePtr node,
const char *const name,
const std::string &def)
{
std::string str = getProperty(node, name, def);
if (!translator)
return str;
return translator->getStr(str);
}
bool getBoolProperty(const XmlNodePtr node,
const char *const name,
const bool def)
{
xmlChar *const prop = XmlGetProp(node, name);
if (XmlStrEqual(prop, "true"))
{
XmlFree(prop);
return true;
}
if (XmlStrEqual(prop, "false"))
{
XmlFree(prop);
return false;
}
XmlFree(prop);
return def;
}
XmlNodePtr findFirstChildByName(const XmlNodePtrConst parent,
const char *const name)
{
if (!parent)
return nullptr;
for_each_xml_child_node(child, parent)
{
if (xmlNameEqual(child, name))
return child;
}
return nullptr;
}
// Initialize libxml2 and check for potential ABI mismatches between
// compiled version and the shared library actually used.
void initXML()
{
xmlInitParser();
LIBXML_TEST_VERSION;
// Suppress libxml2 error messages
xmlSetGenericErrorFunc(nullptr, &xmlErrorLogger);
}
// Shutdown libxml
void cleanupXML()
{
xmlCleanupParser();
}
bool Document::validateXml(const std::string &fileName)
{
const xmlDocPtr doc = xmlReadFile(fileName.c_str(),
nullptr, XML_PARSE_PEDANTIC);
const bool valid1(doc);
xmlFreeDoc(doc);
if (!valid1)
return false;
std::ifstream file;
file.open(fileName.c_str(), std::ios::in);
if (!file.is_open())
{
file.close();
return false;
}
char line[101];
if (!file.getline(line, 100))
return false;
file.close();
const std::string str = line;
if (!strStartWith(str, "