public IList <IArchiveFileInfo> Load(Stream input)
{
using var br = new BinaryReaderX(input, true);
// Read header
_header = br.ReadType <MtHeader>();
// Read entries
var key = GetCipherKey("imaguy_uyrag_igurustim_", "enokok_ikorodo_odohuran");
var entryStream = new MtBlowfishStream(new SubStream(input, HeaderSize, _header.entryCount * EntrySize), key);
using var entryBr = new BinaryReaderX(entryStream);
var entries = entryBr.ReadMultiple <MtEntry>(_header.entryCount);
// Add files
var result = new List <IArchiveFileInfo>();
foreach (var entry in entries)
{
var fileStream = new MtBlowfishStream(new SubStream(input, entry.Offset, entry.CompSize), key);
var name = entry.FileName + MtArcSupport.DetermineExtension(entry.ExtensionHash);
result.Add(MtArc.CreateAfi(fileStream, name, entry, MtArcPlatform.LittleEndian));
}
return(result);
}
public void Save(Stream output, IList <IArchiveFileInfo> files)
{
var key = GetCipherKey("imaguy_uyrag_igurustim_", "enokok_ikorodo_odohuran");
using var bw = new BinaryWriterX(output);
// Calculate offsets
var entryOffset = HeaderSize;
var fileOffset = MtArcSupport.DetermineFileOffset(ByteOrder.LittleEndian, _header.version, files.Count, entryOffset);
// Prepare output stream
output.SetLength(MtArc.GetArchiveSize(files, _header.version, ByteOrder.LittleEndian));
// Write files
var entries = new List <IMtEntry>();
var filePosition = fileOffset;
foreach (var file in files.Cast <MtArchiveFileInfo>())
{
var fileStream = file.GetFinalStream();
Stream targetStream = new SubStream(output, filePosition, fileStream.Length);
targetStream = new MtBlowfishStream(targetStream, key);
fileStream.CopyTo(targetStream);
file.Entry.Offset = filePosition;
file.Entry.SetDecompressedSize((int)file.FileSize, MtArcPlatform.LittleEndian);
file.Entry.CompSize = (int)fileStream.Length;
entries.Add(file.Entry);
filePosition += (int)fileStream.Length;
}
// Write entries
Stream entryStream = new SubStream(output, entryOffset, output.Length - entryOffset);
entryStream = new MtBlowfishStream(entryStream, key);
using var entryBw = new BinaryWriterX(entryStream);
entryBw.WriteMultiple(entries);
// Write header
_header.entryCount = (short)files.Count;
output.Position = 0;
bw.WriteType(_header);
}
public MtArcState()
{
_arc = new MtArc();
}
