public void Write(PakFileStructure archive)
{
Write(archive.Signature);
Write(archive.Version);
Write(archive.DataSize);
Write(archive.FileTreeSize);
Write(archive.Hash);
}
public PakFileStructure ReadPakInfo()
{
var pakFile = new PakFileStructure();
pakFile.Signature = ReadInt32();
pakFile.Version = ReadInt32();
pakFile.DataSize = ReadInt64();
pakFile.FileTreeSize = ReadInt64();
pakFile.Hash = ReadBytes(20);
return(pakFile);
}
public void LoadPakFileStructure(PakBinaryReader reader, int version, string aesKey)
{
var startOffset = version >= 8 ? -204 : -44;
reader.BaseStream.Seek(startOffset, SeekOrigin.End);
Archive = reader.ReadPakInfo();
reader.BaseStream.Seek(Archive.DataSize, SeekOrigin.Begin);
var readerToUse = reader;
if (aesKey != null)
{
var soapHex = SoapHexBinary.Parse(aesKey);
var fileTree = reader.ReadBytes((int)Archive.FileTreeSize);
var decryptedFileTree = AesHandler.DecryptAes(fileTree, soapHex.Value);
var memoryStream = new MemoryStream(decryptedFileTree);
var memoryReader = new PakBinaryReader(memoryStream);
readerToUse = memoryReader;
}
Archive.Directory = readerToUse.ReadPakDirectory();
for (int i = 0; i < Archive.Directory.NumberOfEntries; i++)
{
var currentEntry = readerToUse.ReadDirectoryLevelPakEntry();
Archive.Directory.Entries.Add(currentEntry);
if (i > 0)
{
var previousEntry = Archive.Directory.Entries[i - 1];
var realEntrySize = currentEntry.Offset - previousEntry.Offset;
previousEntry.Padded = currentEntry.Offset % 2048 == 0;
previousEntry.NextOffset = currentEntry.Offset;
previousEntry.RealSize = realEntrySize;
}
}
if (aesKey != null)
{
readerToUse.Close();
}
var compressionTypes = Archive.Directory.Entries.Select(entry => entry.CompressionType).Distinct();
var encryptionTyoes = Archive.Directory.Entries.Select(entry => entry.EncryptionType).Distinct();
var paddedUncompressed = Archive.Directory.Entries.Where(entry => entry.CompressionType == 0 && entry.Padded).OrderBy(entry => entry.UncompressedSize);
var unpaddedUncompressed = Archive.Directory.Entries.Where(entry => entry.CompressionType == 0 && entry.Padded == false).OrderBy(entry => entry.UncompressedSize);
}
public void CreateNewPakFile(string mountPoint, List <PakEntry> entries, int version)
{
Archive = new PakFileStructure
{
Signature = 1517228769,
Version = version,
Directory = new PakDirectory
{
Name = mountPoint,
Entries = entries,
NumberOfEntries = entries.Count
}
};
}
