public ZipReturn ZipFileCreate(string newFilename)
{
if (ZipOpen != ZipOpenType.Closed)
{
return(ZipReturn.ZipFileAlreadyOpen);
}
CompressUtils.CreateDirForFile(newFilename);
_fileInfo = new FileInfo(newFilename);
int errorCode = FileStream.OpenFileWrite(newFilename, out _inStream);
if (errorCode != 0)
{
ZipFileClose();
return(ZipReturn.ZipErrorOpeningFile);
}
ZipOpen = ZipOpenType.OpenWrite;
return(ZipReturn.ZipGood);
}
public ZipReturn ZipFileCreate(string newFilename, SevenZipCompressType compressOutput, int dictionarySize = 1 << 24, int numFastBytes = 64)
{
if (ZipOpen != ZipOpenType.Closed)
{
return(ZipReturn.ZipFileAlreadyOpen);
}
CompressUtils.CreateDirForFile(newFilename);
_zipFileInfo = new FileInfo(newFilename);
int errorCode = FileStream.OpenFileWrite(newFilename, out _zipFs);
if (errorCode != 0)
{
ZipFileClose();
return(ZipReturn.ZipErrorOpeningFile);
}
ZipOpen = ZipOpenType.OpenWrite;
_signatureHeader = new SignatureHeader();
_header = new Header();
using (BinaryWriter bw = new(_zipFs, Encoding.UTF8, true))
{
_signatureHeader.Write(bw);
}
_baseOffset = _zipFs.Position;
_packedOutStreams = new List <outStreams>();
_compType = compressOutput;
#if solid
outStreams newStream = new()
{
packedStart = (ulong)_zipFs.Position,
compType = compressOutput,
packedSize = 0,
unpackedStreams = new List <UnpackedStreamInfo>()
};
switch (compressOutput)
{
case SevenZipCompressType.lzma:
LzmaEncoderProperties ep = new(true, dictionarySize, numFastBytes);
LzmaStream lzs = new(ep, false, _zipFs);
newStream.Method = new byte[] { 3, 1, 1 };
newStream.Properties = lzs.Properties;
_compressStream = lzs;
break;
case SevenZipCompressType.zstd:
ZstdSharp.CompressionStream zss = new(_zipFs, 19);
newStream.Method = new byte[] { 4, 247, 17, 1 };
newStream.Properties = new byte[] { 1, 5, 19, 0, 0 };
_compressStream = zss;
break;
case SevenZipCompressType.uncompressed:
newStream.Method = new byte[] { 0 };
newStream.Properties = null;
_compressStream = _zipFs;
break;
}
_packedOutStreams.Add(newStream);
#endif
return(ZipReturn.ZipGood);
}
public static void extract(string dirName, string outPath)
{
if (CommandFindRomsInGame == null)
{
CommandFindRomsInGame = new SQLiteCommand(
@"SELECT
ROM.RomId, ROM.name, FILES.size, FILES.compressedsize, FILES.crc, FILES.sha1
FROM ROM,FILES WHERE ROM.FileId=FILES.FileId AND ROM.GameId=@GameId AND ROM.PutInZip ORDER BY ROM.RomId", DBSqlite.db.Connection);
}
CommandFindRomsInGame.Parameters.Add(new SQLiteParameter("GameId"));
Debug.WriteLine(dirName);
SQLiteCommand getfiles = new SQLiteCommand(@"SELECT dir.FullName,GameId,game.Name FROM dir,dat,game where dat.dirid=dir.dirid and game.datid=dat.datid and dir.fullname like '" + dirName + "%'", DBSqlite.db.Connection);
DbDataReader reader = getfiles.ExecuteReader();
while (reader.Read())
{
string outputFile = reader["fullname"].ToString() + reader["Name"].ToString() + ".zip";
outputFile = outputFile.Substring(dirName.Length);
outputFile = Path.Combine(outPath, outputFile).Replace(@"/", @"\");
Debug.WriteLine(outputFile);
int GameId = Convert.ToInt32(reader["GameId"]);
string GameName = reader["name"].ToString();
Debug.WriteLine("Game " + GameId + " Name: " + GameName);
Zip memZip = new Zip();
memZip.ZipCreateFake();
ulong fileOffset = 0;
Stream zipFs = null;
int romCount = 0;
using (DbDataReader drRom = ZipSetGetRomsInGame(GameId))
{
while (drRom.Read())
{
int RomId = Convert.ToInt32(drRom["RomId"]);
string RomName = drRom["name"].ToString();
ulong size = Convert.ToUInt64(drRom["size"]);
ulong compressedSize = Convert.ToUInt64(drRom["compressedsize"]);
byte[] CRC = VarFix.CleanMD5SHA1(drRom["crc"].ToString(), 8);
byte[] sha1 = VarFix.CleanMD5SHA1(drRom["sha1"].ToString(), 32);
Debug.WriteLine(" Rom " + RomId + " Name: " + RomName + " Size: " + size + " Compressed: " + compressedSize + " CRC: " + VarFix.ToString(CRC));
byte[] localHeader;
memZip.ZipFileAddFake(RomName, fileOffset, size, compressedSize, CRC, out localHeader);
//ZipSetLocalFileHeader(RomId, localHeader, fileOffset);
if (romCount == 0)
{
CompressUtils.CreateDirForFile(outputFile);
int errorCode = FileStream.OpenFileWrite(outputFile, out zipFs);
}
zipFs.Write(localHeader, 0, localHeader.Length);
gZip GZip = new gZip();
string strFilename = RomRootDir.Getfilename(sha1);
GZip.ZipFileOpen(strFilename, -1, true);
GZip.ZipFileOpenReadStream(0, true, out Stream oStr, out ulong _);
StreamCopier.StreamCopy(oStr, zipFs, compressedSize);
GZip.ZipFileCloseReadStream();
GZip.ZipFileClose();
fileOffset += (ulong)localHeader.Length + compressedSize;
zipFs.Position = (long)fileOffset;
romCount += 1;
}
}
memZip.ZipFileCloseFake(fileOffset, out byte[] centeralDir);
if (romCount > 0)
{
zipFs.Write(centeralDir, 0, centeralDir.Length);
zipFs.Flush();
zipFs.Close();
zipFs.Dispose();
}
}
}
