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#include "stdafx.h"
#include "..\Minecraft.World\StringHelpers.h"
#include "..\Minecraft.World\compression.h"
#include "ArchiveFile.h"
void ArchiveFile::_readHeader(DataInputStream *dis)
{
int numberOfFiles = dis->readInt();
for (int i = 0; i < numberOfFiles; i++)
{
MetaData *meta = new MetaData();
meta->filename = dis->readUTF();
meta->ptr = dis->readInt();
meta->filesize = dis->readInt();
// Filenames preceeded by an asterisk have been compressed.
if (meta->filename[0] == '*')
{
meta->filename = meta->filename.substr(1);
meta->isCompressed = true;
}
else meta->isCompressed = false;
m_index.insert( pair<wstring,PMetaData>(meta->filename,meta) );
}
}
ArchiveFile::ArchiveFile(File file)
{
m_cachedData = nullptr;
m_sourcefile = file;
app.DebugPrintf("Loading archive file...\n");
#ifndef _CONTENT_PACKAGE
char buf[256];
wcstombs(buf, file.getPath().c_str(), 256);
app.DebugPrintf("archive file - %s\n",buf);
#endif
if(!file.exists())
{
app.DebugPrintf("Failed to load archive file!\n");//,file.getPath());
app.FatalLoadError();
}
FileInputStream fis(file);
#if defined _XBOX_ONE || defined __ORBIS__ || defined _WINDOWS64
byteArray readArray(static_cast<unsigned int>(file.length()));
fis.read(readArray,0,file.length());
ByteArrayInputStream bais(readArray);
DataInputStream dis(&bais);
m_cachedData = readArray.data;
#else
DataInputStream dis(&fis);
#endif
_readHeader(&dis);
dis.close();
fis.close();
#if defined _XBOX_ONE || defined __ORBIS__ || defined _WINDOWS64
bais.reset();
#endif
app.DebugPrintf("Finished loading archive file\n");
}
ArchiveFile::~ArchiveFile()
{
delete m_cachedData;
}
vector<wstring> *ArchiveFile::getFileList()
{
vector<wstring> *out = new vector<wstring>();
for ( const auto& it : m_index )
out->push_back( it.first );
return out;
}
bool ArchiveFile::hasFile(const wstring &filename)
{
return m_index.find(filename) != m_index.end();
}
int ArchiveFile::getFileSize(const wstring &filename)
{
return hasFile(filename) ? m_index.at(filename)->filesize : -1;
}
byteArray ArchiveFile::getFile(const wstring &filename)
{
byteArray out;
auto it = m_index.find(filename);
if(it == m_index.end())
{
app.DebugPrintf("Couldn't find file in archive\n");
app.DebugPrintf("Failed to find file '%ls' in archive\n", filename.c_str());
#ifndef _CONTENT_PACKAGE
__debugbreak();
#endif
app.FatalLoadError();
}
else
{
PMetaData data = it->second;
#if defined _XBOX_ONE || defined __ORBIS__ || defined _WINDOWS64
out = byteArray(data->filesize );
memcpy( out.data, m_cachedData + data->ptr, data->filesize );
#else
#ifdef _UNICODE
HANDLE hfile = CreateFile( m_sourcefile.getPath().c_str(),
GENERIC_READ,
0,
nullptr,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
nullptr
);
#else
app.DebugPrintf("Createfile archive\n");
HANDLE hfile = CreateFile( wstringtofilename(m_sourcefile.getPath()),
GENERIC_READ,
0,
nullptr,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
nullptr
);
#endif
if (hfile != INVALID_HANDLE_VALUE)
{
app.DebugPrintf("hfile ok\n");
DWORD ok = SetFilePointer( hfile,
data->ptr,
nullptr,
FILE_BEGIN
);
if (ok != INVALID_SET_FILE_POINTER)
{
PBYTE pbData = new BYTE[ data->filesize ];
DWORD bytesRead = -1;
BOOL bSuccess = ReadFile( hfile,
(LPVOID) pbData,
data->filesize,
&bytesRead,
nullptr
);
if(bSuccess==FALSE)
{
app.FatalLoadError();
}
assert(bytesRead == data->filesize);
out = byteArray(pbData, data->filesize);
}
else
{
app.FatalLoadError();
}
CloseHandle(hfile);
}
else
{
app.DebugPrintf("bad hfile\n");
app.FatalLoadError();
}
#endif
// Compressed filenames are preceeded with an asterisk.
if ( data->isCompressed && out.data != nullptr )
{
/* 4J-JEV:
* If a compressed file is accessed before compression object is
* initialized it will crash here (Compression::getCompression).
*/
///4 279 553 556
ByteArrayInputStream bais(out);
DataInputStream dis(&bais);
unsigned int decompressedSize = dis.readInt();
dis.close();
PBYTE uncompressedBuffer = new BYTE[decompressedSize];
Compression::getCompression()->Decompress(uncompressedBuffer, &decompressedSize, out.data+4, out.length-4);
delete [] out.data;
out.data = uncompressedBuffer;
out.length = decompressedSize;
}
assert(out.data != nullptr); // THERE IS NO FILE WITH THIS NAME!
}
return out;
}
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