public void Run(string output, string[] args)
{
var input = args[0];
if (output == null)
{
output = Path.ChangeExtension(input, "dec");
}
_log.Basic("Decrypting {0}...", input);
using var aes = new RijndaelManaged
{
Mode = CipherMode.CFB,
Key = ReadKey(args[1]),
IV = ReadKey(args[2]),
Padding = PaddingMode.Zeros,
};
using var transform = new PaddingCryptoTransform(aes.CreateDecryptor());
var stream = new CryptoStream(File.OpenRead(input), transform, CryptoStreamMode.Read);
using var reader = new BinaryReader(stream, TeraBinaryReader.Encoding, true);
reader.ReadUInt32();
reader.ReadUInt16();
using var stream2 = new DeflateStream(stream, CompressionMode.Decompress);
using var stream3 = File.Open(output, FileMode.Create, FileAccess.Write);
stream2.CopyTo(stream3);
_log.Basic("Decrypted data center to {0}", output);
}
protected override int Invoke(string[] args)
{
if (args.Length != 3)
{
Console.Error.WriteLine("Expected exactly 3 arguments");
return(1);
}
var input = args[0];
if (_output == null)
{
_output = Path.ChangeExtension(input, DataCenter.UnpackedExtension);
}
_log.Basic("Decrypting {0}...", input);
using var aes = new RijndaelManaged
{
Mode = CipherMode.CFB,
Key = ReadKey(args[1]),
IV = ReadKey(args[2]),
Padding = PaddingMode.Zeros,
};
using var transform = new PaddingCryptoTransform(aes.CreateDecryptor());
var decrypt = new CryptoStream(File.OpenRead(input), transform, CryptoStreamMode.Read);
using var reader = new BinaryReader(decrypt, GameBinaryReader.Encoding, true);
reader.ReadUInt32(); // Decompressed size.
if (reader.ReadUInt16() is var hdr && hdr != 0x9c78)
{
throw new InvalidDataException($"Invalid zlib header value {hdr}.");
}
using var decompress = new FastDeflateStream(decrypt, CompressionMode.Decompress);
using var result = File.Open(_output, FileMode.Create, FileAccess.Write);
decompress.CopyTo(result);
_log.Basic("Decrypted data center to {0}", _output);
return(0);
}
protected override int Invoke(string[] args)
{
if (args.Length != 3)
{
Console.Error.WriteLine("Expected exactly 3 arguments");
return(1);
}
var input = args[0];
if (_output == null)
{
_output = Path.ChangeExtension(input, DecryptedExtension);
}
_log.Basic("Decrypting {0}...", input);
using var aes = new RijndaelManaged
{
Mode = CipherMode.CFB,
Key = ReadKey(args[1]),
IV = ReadKey(args[2]),
Padding = PaddingMode.Zeros,
};
using var transform = new PaddingCryptoTransform(aes.CreateDecryptor());
var stream = new CryptoStream(File.OpenRead(input), transform, CryptoStreamMode.Read);
using var reader = new BinaryReader(stream, GameBinaryReader.Encoding, true);
reader.ReadUInt32();
reader.ReadUInt16();
using var stream2 = new DeflateStream(stream, CompressionMode.Decompress);
using var stream3 = File.Open(_output, FileMode.Create, FileAccess.Write);
stream2.CopyTo(stream3);
_log.Basic("Decrypted data center to {0}", _output);
return(0);
}
