public static byte[] DecompressZLib(this byte[] @this)
{
using (var zlib = new ZlibStream(new MemoryStream(@this), CompressionMode.Decompress))
{
return(zlib.ReadToEnd());
}
}
/// <summary>
/// Extracts information about all file indicies from the archive.
/// </summary>
/// <returns>A list of all file indicies found in the archive.</returns>
private IEnumerable <ArchiveIndex> ExtractIndices()
{
var parser = new PickleParser();
// Open archive in read-only mode.
using (var fs = _info.OpenRead()) {
// Read header line and split it at whitespace.
var header = fs.ReadLine();
var splitted = header.Split((char)0x20);
// Retrieve hexadecimal offset and convert it to an integer value.
var offset = Convert.ToInt32(splitted[1], 16);
// Seek to the determined offset and read archive structure.
fs.Seek(offset, SeekOrigin.Begin);
using (var stream = new ZlibStream(fs, CompressionMode.Decompress)) {
var decompressed = stream.ReadToEnd();
// Unpickle the decompressed data
var deserialized = parser.Unpickle(decompressed);
if (Version != 3)
{
return(deserialized);
}
// If this is an RPA-3.0 archive additionally calculate the deobfuscation key.
CalculateDeobfuscationKey(splitted);
// Deobfuscate archive indicies.
deserialized = Deobfuscate(deserialized);
return(deserialized);
}
}
}
private static string decompressFile(string inputFile)
{
var outputFile = inputFile + ".raw";
var sr = File.OpenRead(inputFile);
var s = new ZlibStream(sr, CompressionMode.Decompress);
var bytes = s.ReadToEnd().ToArray();
File.WriteAllBytes(outputFile, bytes);
s.Close();
sr.Close();
return(outputFile);
}
private static void decompressDlm(string filepath, string outputFolder)
{
if (!Directory.Exists(outputFolder))
{
Directory.CreateDirectory(outputFolder);
}
var mapId = Path.GetFileNameWithoutExtension(filepath);
var or = File.OpenRead(filepath);
var s = new ZlibStream(or, CompressionMode.Decompress);
var mapBytes = s.ReadToEnd();
File.WriteAllBytes(Path.Combine(outputFolder, mapId + ".map"), mapBytes.ToArray());
s.Close();
or.Close();
}
