mirror of
https://port.numenaute.org/aleajactaest/khanat-code-old.git
synced 2024-11-19 05:26:13 +00:00
272 lines
8.4 KiB
C++
272 lines
8.4 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
|
|
// Copyright (C) 2010 Winch Gate Property Limited
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as
|
|
// published by the Free Software Foundation, either version 3 of the
|
|
// License, or (at your option) 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 Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#include "stdmisc.h"
|
|
#include "nel/misc/xml_pack.h"
|
|
#include "nel/misc/file.h"
|
|
|
|
#include <cstdio>
|
|
|
|
using namespace std;
|
|
|
|
|
|
namespace NLMISC
|
|
{
|
|
|
|
NLMISC_SAFE_SINGLETON_IMPL(CXMLPack);
|
|
|
|
|
|
// For a simple parser, we read by line, with a limit to 1Ko
|
|
const uint32 MaxLineSize = 1*1024;
|
|
|
|
/// Consume space and tab characters (but NOT newlines)
|
|
void CXMLPack::skipWS(string::iterator &it, string::iterator end)
|
|
{
|
|
while (it != end && (*it == ' ' || *it == '\t'))
|
|
++it;
|
|
}
|
|
/// Try to match the specified text at current position. Return false of no match
|
|
bool CXMLPack::matchString(string::iterator &it, string::iterator end, const char *text)
|
|
{
|
|
string::iterator rewind = it;
|
|
// skip leading WS
|
|
skipWS(it, end);
|
|
|
|
while (it != end && *text && *text == *it)
|
|
{
|
|
++it;
|
|
++text;
|
|
}
|
|
if (*text == 0)
|
|
{
|
|
// we have advanced up to the end of text, so the match is OK
|
|
return true;
|
|
}
|
|
// no match !
|
|
// rewind
|
|
it = rewind;
|
|
return false;
|
|
}
|
|
|
|
/// Advance up to the beginning of the next line, incrementing the in/out param lineCount
|
|
void CXMLPack::skipLine(string::iterator &it, string::iterator end, uint32 &lineCount)
|
|
{
|
|
// advance up to end of string or newline char
|
|
while (it != end && *it != '\n')
|
|
{
|
|
++it;
|
|
}
|
|
// skip the new line char
|
|
if (it != end && *it == '\n')
|
|
{
|
|
++it;
|
|
++lineCount;
|
|
}
|
|
}
|
|
|
|
|
|
// Add an xml pack to the manager
|
|
bool CXMLPack::add (const std::string &xmlPackFileName)
|
|
{
|
|
// prepare the container to store this pack file
|
|
TStringId packId = CStringMapper::map(xmlPackFileName);
|
|
TPackList::iterator packIt(_XMLPacks.find(packId));
|
|
if (packIt != _XMLPacks.end())
|
|
{
|
|
nlwarning("CXMLPack::add : can't add xml_pack file '%s' because already added", xmlPackFileName.c_str());
|
|
return false;
|
|
}
|
|
TXMLPackInfo &packInfo = _XMLPacks[packId];
|
|
|
|
// open the xml pack for later access
|
|
// packInfo.FileHandler = fopen(xmlPackFileName.c_str(), "rb");
|
|
|
|
// open the xml pack for parsing
|
|
CIFile packFile;
|
|
packFile.open(xmlPackFileName);
|
|
|
|
uint32 packSize = packFile.getFileSize();
|
|
string buffer;
|
|
buffer.resize(packSize);
|
|
|
|
// read the file in memory for parsing
|
|
packFile.serialBuffer((uint8*)buffer.data(), packSize);
|
|
|
|
string::iterator it=buffer.begin(), end(buffer.end());
|
|
uint32 lineCount = 0;
|
|
|
|
// check the xml pack header element
|
|
if (!matchString(it, end, "<nel:packed_xml>"))
|
|
{
|
|
nlwarning("Error : invalid pack file '%s', invalid header", xmlPackFileName.c_str());
|
|
return false;
|
|
}
|
|
// advance to next line
|
|
skipLine(it, end, lineCount);
|
|
|
|
// now enter the sub file loop
|
|
for(;;)
|
|
{
|
|
TXMLFileInfo fileInfo;
|
|
// match a sub file header
|
|
if (!matchString(it, end, "<nel:xml_file"))
|
|
{
|
|
nlwarning("Error : invalid pack file content at line %u in '%s'", lineCount, xmlPackFileName.c_str());
|
|
return false;
|
|
}
|
|
|
|
// ok, extract the file name from the header, match 'name' then '=' then '"'
|
|
if (!matchString(it, end, "name") || !matchString(it, end, "=") || !matchString(it, end, "\""))
|
|
{
|
|
nlwarning("Error : invalid pack file sub header at line %u in '%s', can't found attribute 'name'", lineCount, xmlPackFileName.c_str());
|
|
return false;
|
|
}
|
|
string::iterator nameBegin = it;
|
|
// advance up to closing quote
|
|
while (it != end && *it != '\"')
|
|
++it;
|
|
if (it == end)
|
|
{
|
|
nlwarning("Error : invalid pack file sub header at line %u in '%s', can't found attribute closing quote for name", lineCount, xmlPackFileName.c_str());
|
|
return false;
|
|
}
|
|
string subFileName(buffer, nameBegin-buffer.begin(), it-nameBegin);
|
|
if (subFileName.empty())
|
|
{
|
|
nlwarning("Error : invalid pack file sub header at line %u in '%s', empty filename", lineCount, xmlPackFileName.c_str());
|
|
return false;
|
|
}
|
|
// advance to the closing '>'
|
|
while (it != end && *it != '>')
|
|
++it;
|
|
if (it == end)
|
|
{
|
|
nlwarning("Error : invalid pack file sub header at line %u in '%s', can't found element closing '>'", lineCount, xmlPackFileName.c_str());
|
|
return false;
|
|
}
|
|
// advance to next line (beginning of sub file)
|
|
skipLine(it, end, lineCount);
|
|
|
|
string::iterator beginOfFile = it;
|
|
string::iterator endOfFile = it;
|
|
|
|
// now, advance up to the end of file
|
|
while (it != end && !matchString(it, end, "</nel:xml_file>"))
|
|
{
|
|
skipLine(it, end, lineCount);
|
|
endOfFile = it;
|
|
}
|
|
|
|
// we must not be at end of file
|
|
if (it == end)
|
|
{
|
|
nlwarning("Error : invalid sub file at line %u in '%s', reach end of file without closing file and pack elements", lineCount, xmlPackFileName.c_str());
|
|
return false;
|
|
}
|
|
|
|
// ok, the file is parsed, store it
|
|
fileInfo.FileName = CStringMapper::map(subFileName);
|
|
fileInfo.FileOffset = (uint32)(beginOfFile - buffer.begin());
|
|
fileInfo.FileSize = (uint32)(endOfFile - beginOfFile);
|
|
// fileInfo.FileHandler = fopen(xmlPackFileName.c_str(), "rb");
|
|
packInfo._XMLFiles.insert(make_pair(fileInfo.FileName, fileInfo));
|
|
|
|
// advance to next line
|
|
skipLine(it, end, lineCount);
|
|
|
|
// check for end of pack
|
|
if (matchString(it, end, "</nel:packed_xml>"))
|
|
{
|
|
// ok, the parse is over
|
|
break;
|
|
}
|
|
|
|
// continue to next file in pack
|
|
}
|
|
|
|
nldebug("XMLPack : xml_pack '%s' added to the collection with %u files", xmlPackFileName.c_str(), packInfo._XMLFiles.size());
|
|
// ok, parsing ended
|
|
return true;
|
|
}
|
|
|
|
// List all files in an xml_pack file
|
|
void CXMLPack::list (const std::string &xmlPackFileName, std::vector<std::string> &allFiles)
|
|
{
|
|
TStringId key = CStringMapper::map(xmlPackFileName);
|
|
|
|
TPackList::const_iterator it(_XMLPacks.find(key));
|
|
if (it != _XMLPacks.end())
|
|
{
|
|
const TXMLPackInfo &packInfo = it->second;
|
|
// we found it, fill the out vector
|
|
TXMLPackInfo::TFileList::const_iterator first(packInfo._XMLFiles.begin()), last(packInfo._XMLFiles.end());
|
|
for (; first != last; ++first)
|
|
{
|
|
const TXMLFileInfo &fileInfo = first->second;
|
|
allFiles.push_back(CStringMapper::unmap(fileInfo.FileName));
|
|
}
|
|
}
|
|
}
|
|
|
|
// Used by CIFile to get information about the files within the xml pack
|
|
FILE* CXMLPack::getFile (const std::string &sFileName, uint32 &rFileSize, uint32 &rFileOffset,
|
|
bool &rCacheFileOnOpen, bool &rAlwaysOpened)
|
|
{
|
|
// split the name appart from the '@@' separator to get the pack file name
|
|
// and subfile name
|
|
vector<string> parts;
|
|
explode(sFileName, string("@@"), parts, true);
|
|
if (parts.size() != 2)
|
|
{
|
|
nlwarning("CXMLPack::getFile : Can't extract pack and filename from '%s', found %u part instead of 2 when spliting apart from '@@'",
|
|
sFileName.c_str(),
|
|
parts.size());
|
|
return NULL;
|
|
}
|
|
|
|
TStringId packId = CStringMapper::map(parts[0]);
|
|
TStringId fileId = CStringMapper::map(parts[1]);
|
|
|
|
TPackList::iterator packIt(_XMLPacks.find(packId));
|
|
if (packIt == _XMLPacks.end())
|
|
{
|
|
nlwarning("CXMLPack::getFile : Can't find xml pack file named '%s' to open '%s'", parts[0].c_str(), sFileName.c_str());
|
|
return NULL;
|
|
}
|
|
TXMLPackInfo &packInfo = packIt->second;
|
|
TXMLPackInfo::TFileList::iterator fileIt = packInfo._XMLFiles.find(fileId);
|
|
if (fileIt == packInfo._XMLFiles.end())
|
|
{
|
|
nlwarning("CXMLPack::getFile : Can't find xml file named '%s' in pack '%s'",
|
|
parts[1].c_str(), parts[0].c_str());
|
|
return NULL;
|
|
}
|
|
|
|
// ok, we have found it !
|
|
TXMLFileInfo &fileInfo = fileIt->second;
|
|
|
|
// fill the return value
|
|
rFileSize = fileInfo.FileSize;
|
|
rFileOffset = fileInfo.FileOffset;
|
|
rCacheFileOnOpen = false;
|
|
rAlwaysOpened = false;
|
|
FILE *fp = fopen(parts[0].c_str(), "rb");
|
|
return fp;
|
|
}
|
|
|
|
|
|
} // namespace NLMISC
|
|
|