public void Deflate()
{
string hello = "hello world";
byte[] bytes = Zlib.DeflateString(hello);
string base64 = Base64.Encode(bytes);
}
public static byte[] UncompressChunk(ref byte[] iBytes, int outSize)
{
Console.WriteLine(Environment.CurrentDirectory);
// zlib doesn't seem to work in 64bit, try this, and fallback to trying zlib if failed
//if (is64BitProcess && File.Exists(ExternalCompressionName))
//{
// var hex = HeroDesigner.ZLib.Helpers.byteArrayToHexString(iBytes);
// var proc = Process.Start(new ProcessStartInfo(ExternalCompressionName, "uncompress " + iBytes.Length + " " + outSize + " \"" + hex + "\"")
// {
// UseShellExecute = false,
// RedirectStandardOutput = true,
// });
// var output = proc.StandardOutput.ReadToEnd();
// if (proc.ExitCode == 0)
// {
// var text = new string(output.SkipWhile(x => x != '-').SkipWhile(x => x == '-').TakeWhile(x => x != '-').ToArray()).Trim();
// var bytes = HeroDesigner.ZLib.Helpers.hexStringToByteArray(text);
// return bytes;
// }
//}
int length = iBytes.Length;
int destLength = outSize;
byte[] array = new byte[destLength];
if (Zlib.Uncompress(ref array[0], ref destLength, ref iBytes[0], length) == 0)
{
Array.Resize(ref array, destLength);
return(array);
}
else
{
return(Array.Empty <byte>());
}
}
private static void ExtractHg3ImageJpegAlpha(BinaryReader reader, Hg3FrameInfo frameInfo, HgxOptions options,
string pngFile)
{
HG3STDINFO std = frameInfo.StdInfo;
HG3IMG_AL img = frameInfo.ImgAl.Data;
HG3TAG tag = frameInfo.ImgJpg.Tag;
reader.BaseStream.Position = frameInfo.ImgAl.Offset;
// WGC handles bad alpha buffer errors gracefully, so we should too
byte[] alphaBuffer;
try {
alphaBuffer = Zlib.Decompress(reader, img.CompressedLength, img.DecompressedLength);
} catch (ZlibException ex) {
if (ex.Result == ZResult.DataError || ex.Result == ZResult.BufferError)
{
alphaBuffer = ex.OutputBuffer;
}
else
{
throw;
}
}
reader.BaseStream.Position = frameInfo.ImgJpg.Offset;
byte[] buffer = reader.ReadBytes(tag.Length);
if (!CatDebug.SpeedTestHgx)
{
WriteJpegAlphaMaskToPng(buffer, alphaBuffer, std, options, pngFile);
}
}
private void CopyResponse(Image <Rgba32> bitmap)
{
bitmap.Mutate((s) => s.Resize(new ResizeOptions()
{
Mode = ResizeMode.Max,
Size = new Size(384, 384)
}));
using var stream2 = new MemoryStream();
bitmap.Save(stream2, new JpegEncoder());
byte[] tmp = stream2.ToArray();
stream2.SetLength(0);
Zlib.Compress(stream2, tmp);
tmp = new byte[4000];
Reset();
stream2.Position = 0;
while (true)
{
int count = stream2.Read(tmp, 0, tmp.Length);
if (count == 0)
{
break;
}
Write(tmp, 0, count);
}
Size = (uint)Received;
Chunks = ChunkCount;
}
public static void WritePacked(this Span <byte> dest, ref int pos, ReadOnlySpan <byte> source)
{
var length = source.Length;
if (length == 0)
{
#if NO_LOCAL_INIT
dest.Write(ref pos, 0);
#else
pos += 4;
#endif
return;
}
var packLength = (ulong)dest.Length - 8;
ZlibError ce = Zlib.Pack(dest.Slice(pos + 8), ref packLength, source, ZlibQuality.Default);
if (ce != ZlibError.Okay)
{
Console.WriteLine("ZLib error: {0} (#{1})", ce, (int)ce);
}
dest.Write(ref pos, (int)(4 + packLength));
dest.Write(ref pos, length);
pos += (int)packLength;
}
public void ExtractStream()
{
var fileName = @"C:\Users\sal\Desktop\Hey.pdf";
var offset = 550;
var compressedSize = 1132;
var file = File.OpenRead(fileName);
file.Seek(offset, SeekOrigin.Begin);
int b;
while ((b = file.ReadByte()) != 'm')
{
;
}
while ((b = file.ReadByte()) != '\n')
{
;
}
var streamOffset = file.Position;
var compressedBytes = new byte[compressedSize];
file.Read(compressedBytes);
var bytes = Zlib.Inflate(compressedBytes);
var s = Encoding.ASCII.GetString(bytes);
}
object TryToParse(Type type, byte[] data)
{
try
{
var stream = new MemoryStream(data);
var obj = ProtoBuf.Meta.RuntimeTypeModel.Default.Deserialize(stream, null, type);
if (stream.Position != stream.Length)
{
throw new Exception("Not enough data readed.");
}
return(obj);
}
catch (Exception ex)
{
Console.WriteLine("Try to decode this data: " + ex.Message);
}
byte code = data[data.Length - 1];
for (int i = 0; i < data.Length - 1; i++)
{
data[i] ^= code;
}
data = Zlib.DeCompress(data);
return(ProtoBuf.Meta.RuntimeTypeModel.Default.Deserialize(new MemoryStream(data), null, type));
}
public override void Action(BinaryWriter writer)
{
var uncompressedData = Zlib.Decompress(compressedData);
if (GetCalculatedUncompressedDataSize() != uncompressedData.Length)
{
Debug.LogError("Uncompressed size != calculated size!");
}
for (int i = 0; i < 16; ++i)
{
var chunk = ChunkManager.Get().GetChunk(new Vector3(x, i * 16, z));
if ((primaryBitMap & (1 << i)) != 0)
{
for (int ix = 0; ix < 16; ++ix)
{
for (int iy = 0; iy < 16; ++iy)
{
for (int iz = 0; iz < 16; ++iz)
{
chunk.SetBlock(ix, iy, iz, uncompressedData[GetUncompressedDataIndex(i, ix, iy, iz)]);
}
}
}
}
chunk.Loaded = true;
}
ChunkManager.LoadedChunks++;
}
private static void WritePacked(ref SpanWriter writer, ReadOnlySpan <byte> span)
{
var length = span.Length;
if (length == 0)
{
writer.Write(0);
return;
}
var wantLength = 1 + span.Length * 1024 / 1000;
wantLength += 4095;
wantLength &= ~4095;
var packBuffer = ArrayPool <byte> .Shared.Rent(wantLength);
var packLength = wantLength;
Zlib.Pack(packBuffer, ref packLength, span, length, ZlibQuality.Default);
writer.Write(4 + packLength);
writer.Write(length);
writer.Write(packBuffer.AsSpan(0, packLength));
ArrayPool <byte> .Shared.Return(packBuffer);
}
public void SendPacket(IPacket packet)
{
PacketBuffer sendBuffer = new PacketBuffer();
packet.Send(sendBuffer);
byte[] packetIdVI = ByteUtils.ToVarInt(packet.GetId());
byte[] packetData = ByteUtils.Concat(packetIdVI, sendBuffer.ToArray());
if (compressionThreshold > 0)
{
if (packetData.Length > compressionThreshold)
{
byte[] uncompressed_length = ByteUtils.ToVarInt(packetData.Length);
byte[] compressed_packet = Zlib.Compress(packetData);
byte[] compressed_packet_length = ByteUtils.ToVarInt(compressed_packet.Length);
packetData = ByteUtils.Concat(compressed_packet_length, compressed_packet);
}
else
{
byte[] uncompressed_length = ByteUtils.ToVarInt(0);
packetData = ByteUtils.Concat(uncompressed_length, packetData);
}
}
byte[] lengthVI = ByteUtils.ToVarInt(packetData.Length);
var l = ByteUtils.Concat(lengthVI, packetData);
SendBytes(l);
}
private void LoadCallback(IAsyncResult ar)
{
var lr = (LoadRequest)ar.AsyncState;
Bitmap bmp1 = null;
Bitmap bmp2 = null;
WebResponse response = null;
try {
response = lr.Request.EndGetResponse(ar);
using (var stream = response.GetResponseStream()) {
bmp1 = (Bitmap)Bitmap.FromStream(stream);
bmp2 = ScaleImage(bmp1, 384, 384);
using (var stream2 = new MemoryStream()) {
bmp2.Save(stream2, ImageFormat.Jpeg);
byte[] tmp = stream2.ToArray();
stream2.SetLength(0);
Zlib.Compress(stream2, tmp);
tmp = new byte[4000];
Reset();
stream2.Position = 0;
while (true)
{
int count = stream2.Read(tmp, 0, tmp.Length);
if (count == 0)
{
break;
}
Write(tmp, 0, count);
}
Size = (uint)Received;
Chunks = ChunkCount;
}
}
lr.Callback(lr.State);
}
catch (Exception ex) {
lr.Callback(ex);
}
finally {
if (bmp1 != null)
{
bmp1.Dispose();
}
if (bmp2 != null)
{
bmp2.Dispose();
}
}
}
public void SendPacket(int id, PacketBuffer buffer)
{
byte[] packetIdVI = ByteUtils.ToVarInt(id);
byte[] packetData = ByteUtils.Concat(packetIdVI, buffer.ReadToEnd());
if (compressionThreshold > 0)
{
if (packetData.Length > compressionThreshold)
{
byte[] uncompressed_length = ByteUtils.ToVarInt(packetData.Length);
byte[] compressed_packet = Zlib.Compress(packetData);
byte[] compressed_packet_length = ByteUtils.ToVarInt(compressed_packet.Length);
packetData = ByteUtils.Concat(compressed_packet_length, compressed_packet);
}
else
{
byte[] uncompressed_length = ByteUtils.ToVarInt(0);
packetData = ByteUtils.Concat(uncompressed_length, packetData);
}
}
byte[] lengthVI = ByteUtils.ToVarInt(packetData.Length);
var l = ByteUtils.Concat(lengthVI, packetData);
SendBytes(l);
}
public static string SendRequest(string url, string body)
{
// send request
Log.Info(Constants.backendUrl + url);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Constants.backendUrl + url);
byte[] data = Zlib.Compress(Encoding.UTF8.GetBytes(body));
request.Method = "POST";
request.ContentType = "text/plain";
request.AutomaticDecompression = DecompressionMethods.Deflate;
request.ContentLength = data.Length;
using (Stream stream = request.GetRequestStream())
{
stream.Write(data, 0, data.Length);
}
// get response
Stream responseData = request.GetResponse().GetResponseStream();
using (MemoryStream ms = new MemoryStream())
{
responseData.CopyTo(ms);
return(Encoding.UTF8.GetString(Zlib.Decompress(ms.ToArray())));
}
}
public void AddFilesV3(List <string> files, string srcdir, string dstdir)
{
Stream.Reopen(false);
SetProgressMax?.Invoke(files.Count);
int cl = Settings.CompressionLevel;
Stream.Seek(-280, SeekOrigin.End);
long current_end = Stream.ReadInt64() ^ Key.KEY_1;
foreach (string file in files)
{
SetProgressNext?.Invoke();
byte[] data = File.ReadAllBytes(file);
int size = data.Length;
byte[] compressed = Zlib.Compress(data, cl);
if (compressed.Length < size)
{
data = compressed;
}
string path = (dstdir + file.RemoveFirst(srcdir).RemoveFirstSeparator()).RemoveFirstSeparator();
var entry = Files.Where(x => x.Path == path).ToList();
if (entry.Count > 0)
{
if (data.Length <= entry[0].CSize)
{
entry[0].Size = size;
entry[0].CSize = data.Length;
Stream.Seek(entry[0].Offset, SeekOrigin.Begin);
Stream.WriteBytes(data);
}
else
{
entry[0].Size = size;
entry[0].CSize = data.Length;
entry[0].Offset = current_end;
Stream.Seek(current_end, SeekOrigin.Begin);
current_end += data.Length;
Stream.WriteBytes(data);
}
}
else
{
Files.Add(new ArchiveEntryV3()
{
Path = path,
Size = size,
CSize = data.Length,
Offset = current_end
});
Stream.Seek(current_end, SeekOrigin.Begin);
current_end += data.Length;
Stream.WriteBytes(data);
}
}
SaveFileTable(current_end);
SetProgress?.Invoke(0);
LoadData?.Invoke(0);
LoadData?.Invoke(1);
}
private static XmlElement ProcessCompressed(IProcessXmlSoapClient client, TwinfieldProcessXmlService.Header header, XmlDocument input)
{
byte[] compressedInput = Zlib.CompressXml(input);
byte[] compressedOutput = client.ProcessXmlCompressed(header, compressedInput);
XmlDocument document = Zlib.DecompressXml(compressedOutput);
return(document == null ? null : document.DocumentElement);
}
internal void SendRoomScribble(Predicate <IClient> pred, string name, RoomScribble scribble)
{
byte[] buffer;
if (scribble.Size <= 4000)
{
Server.SendAnnounce(pred, string.Format("\x000314--- From {0}", name));
Server.SendPacket(pred, new ClientCustom(string.Empty, "cb0t_scribble_once", scribble.RawImage()));
}
else
{
scribble.Index = 0;
int length = Math.Min((int)scribble.Received, 4000);
buffer = scribble.Read();
Server.SendAnnounce(pred, string.Format("\x000314--- From {0}", name));
Server.SendPacket(pred, new ClientCustom(string.Empty, "cb0t_scribble_first", buffer));
while (scribble.Remaining > 0)
{
buffer = scribble.Read();
if (scribble.Remaining > 0)
{
Server.SendPacket(pred, new ClientCustom(string.Empty, "cb0t_scribble_chunk", buffer));
}
else
{
Server.SendPacket(pred, new ClientCustom(string.Empty, "cb0t_scribble_last", buffer));
}
}
}
var ib0ts = Server.Users.Where(s => s.Socket.Isib0tSocket && pred(s));
if (ib0ts.Count() > 0)
{
buffer = Zlib.Decompress(scribble.RawImage());
int height = RoomScribble.GetHeight(buffer);
string base64 = Convert.ToBase64String(buffer);
string[] chunks = new string[(int)Math.Round((double)(base64.Length / 1024), MidpointRounding.AwayFromZero)];
for (int i = 0; i < chunks.Length; i++)
{
chunks[i] = base64.Substring(i * 1024, 1024);
}
ib0ts.ForEach(s => s.SendPacket(new ScribbleHead(name, height, chunks.Length)));
foreach (string chunk in chunks)
{
ib0ts.ForEach(s => s.SendPacket(new ScribbleBlock(chunk)));
}
}
}
// Used for protobuf json strings.
public static byte[] Deflate <T>(string name, T data)
{
var jsonData = Encoding.UTF8.GetBytes(name + ":" + CreateString(data) + "\0");
var jsonDataLength = BitConverter.GetBytes(jsonData.Length);
var zlibHeader = new byte[] { 0x78, 0x9C };
var compressedData = Zlib.Deflate(jsonData);
var uncompressedAdler = BitConverter.GetBytes(Adler32.Calculate(jsonData)).Reverse().ToArray();
return(jsonDataLength.Concat(zlibHeader).Concat(compressedData).Concat(uncompressedAdler).ToArray());
}
public static byte[] Decompress(byte[] buffer)
{
if (buffer == null)
{
throw new ArgumentNullException();
}
using (MemoryStream buffStream = new MemoryStream(buffer))
{
uint magicStream = buffStream.ReadValueU32();
if (magicStream != magic && magicStream.Swap() != magic)
{
throw new InvalidDataException("found an invalid zlib block");
}
uint buffMaxSegmentSize = buffStream.ReadValueU32();
if (buffMaxSegmentSize != maxSegmentSize)
{
throw new FormatException();
}
uint totComprSize = buffStream.ReadValueU32();
uint totUncomprSize = buffStream.ReadValueU32();
byte[] outputBuffer = new byte[totUncomprSize];
int numOfSegm = (int)Math.Ceiling(totUncomprSize / (double)maxSegmentSize);
int headSegm = 16;
int dataSegm = headSegm + (numOfSegm * 8);
int buffOff = 0;
for (int i = 0; i < numOfSegm; i++)
{
buffStream.Seek(headSegm, SeekOrigin.Begin);
int comprSegm = buffStream.ReadValueS32();
int uncomprSegm = buffStream.ReadValueS32();
headSegm = (int)buffStream.Position;
buffStream.Seek(dataSegm, SeekOrigin.Begin);
//Console.WriteLine("compr size: {0}, uncompr size: {1}, data offset: 0x{2:X8}", comprSegm, uncomprSegm, dataSegm);
byte[] src = buffStream.ReadBytes(comprSegm);
byte[] dst = new byte[uncomprSegm];
if (Zlib.Decompress(src, (uint)src.Length, dst) != uncomprSegm)
{
throw new Exception("Zlib decompression failed!");
}
Buffer.BlockCopy(dst, 0, outputBuffer, buffOff, uncomprSegm);
buffOff += uncomprSegm;
dataSegm += comprSegm;
}
buffStream.Close();
return(outputBuffer);
}
}
public void DeflateRencode()
{
var list = "hello_world";
string encode = Rencode.Encode(list);
byte[] encodedBytes = encode.Select(Convert.ToByte).ToArray();
byte[] bytes = Zlib.Deflate(encodedBytes);
string base64 = Base64.Encode(bytes);
}
bool UncompressFile(string iRoot, BinaryReader reader)
{
Zlib.FileHeader fileHeader = default(Zlib.FileHeader);
string str = reader.ReadString();
fileHeader.FileName = FileIO.StripSlash(iRoot) + str;
fileHeader.DecompressedSize = reader.ReadInt32();
fileHeader.CompressedSize = reader.ReadInt32();
this._sFrm.StatusText2 = str;
if (!Directory.Exists(fileHeader.FileName.Substring(0, fileHeader.FileName.LastIndexOf("\\", StringComparison.Ordinal))))
{
Directory.CreateDirectory(fileHeader.FileName.Substring(0, fileHeader.FileName.LastIndexOf("\\", StringComparison.Ordinal)));
}
if (File.Exists(fileHeader.FileName))
{
File.Delete(fileHeader.FileName);
}
FileStream fileStream;
BinaryWriter binaryWriter;
bool flag;
try
{
fileStream = new FileStream(fileHeader.FileName, FileMode.Create);
binaryWriter = new BinaryWriter(fileStream);
}
catch (Exception ex)
{
MessageBox.Show("An error occurred while opening files for writing for decompression: " + ex.Message, "Buh?");
flag = false;
return(flag);
}
try
{
byte[] iBytes = reader.ReadBytes(fileHeader.CompressedSize);
byte[] buffer = Zlib.UncompressChunk(ref iBytes, fileHeader.DecompressedSize);
if (buffer.Length != fileHeader.DecompressedSize)
{
throw new Exception("Uncompressed data was not the expected size!");
}
binaryWriter.Write(buffer);
binaryWriter.Close();
fileStream.Close();
flag = true;
}
catch (Exception ex2)
{
MessageBox.Show("An error occurred during decompression: " + ex2.Message, "Buh?");
reader.Close();
fileStream.Close();
flag = false;
}
return(flag);
}
public override ITexture ConvertToBitmap(Sprite entity)
{
var data = entity.Data;
var type = entity.Type;
var size = entity.Width * entity.Height * (type == ColorBits.ARGB_8888 ? 4 : 2);
if (entity.CompressMode == CompressMode.ZLIB)
{
data = Zlib.Decompress(data, size);
}
return(TextureUitls.Instance.FromArray(data, entity.Size, type));
}
public override Bitmap ConvertToBitmap(Sprite entity)
{
var data = entity.Data;
var type = entity.Type;
var size = entity.Width * entity.Height * (type == ColorBits.ARGB_8888 ? 4 : 2);
if (entity.Compress == Compress.ZLIB)
{
data = Zlib.Decompress(data, size);
}
return(Bitmaps.FromArray(data, entity.Size, type));
}
private static void ExtractHg3ImageAlpha(BinaryReader reader, Hg3FrameInfo frameInfo, HgxOptions options,
string pngFile)
{
HG3STDINFO std = frameInfo.StdInfo;
HG3IMG_AL img = frameInfo.ImgAl.Data;
reader.BaseStream.Position = frameInfo.ImgAl.Offset;
// WGC handles bad alpha buffer errors gracefully, so we should too
byte[] alphaBuffer;
try {
alphaBuffer = Zlib.Decompress(reader, img.CompressedLength, img.DecompressedLength);
} catch (ZlibException ex) {
if (ex.Result == ZResult.DataError || ex.Result == ZResult.BufferError)
{
alphaBuffer = ex.OutputBuffer;
}
else
{
throw;
}
}
int depthBytes = (std.DepthBits + 7) / 8;
int stride = (std.Width * depthBytes + 3) & ~3;
int minStride = (std.Width * depthBytes);
int alphaStride = std.Width;
byte[] pixelBuffer = new byte[stride * std.Height];
for (int y = 0; y < std.Height; y++)
{
int src = y * alphaStride;
int dst = y * stride;
for (int x = 0; x < std.Width; x++)
{
int alphaIndex = src + x;
int pixelIndex = dst + x * depthBytes;
byte alpha = unchecked ((byte)(byte.MaxValue - alphaBuffer[alphaIndex]));
pixelBuffer[pixelIndex + 0] = alpha;
pixelBuffer[pixelIndex + 1] = alpha;
pixelBuffer[pixelIndex + 2] = alpha;
if (depthBytes == 4)
{
pixelBuffer[pixelIndex + 3] = byte.MaxValue;
}
}
}
if (!CatDebug.SpeedTestHgx)
{
WritePng(pixelBuffer, std, options, pngFile);
}
}
public void Read(byte[] data)
{
if (data.Length < 276)
{
data = Zlib.Decompress(data, 276);
}
BinaryReader br = new BinaryReader(new MemoryStream(data));
Path = br.ReadBytes(260).ToGBK().Replace("/", "\\");
Offset = br.ReadUInt32();
Size = br.ReadInt32();
CSize = br.ReadInt32();
br.Close();
}
private byte[] SendJson(HttpListenerResponse response, string json)
{
if (response == null)
{
return(null);
}
Log.Data("SEND:" + Environment.NewLine + json);
response.AddHeader("Content-Type", "text/plain");
response.AddHeader("Content-Encoding", "deflate");
byte[] buffer = Encoding.UTF8.GetBytes(json);
return(Zlib.Compress(buffer));
}
protected void Page_Load(object sender, EventArgs e)
{
string guid = Request.QueryString[string.Empty];
if (guid == null || !Regex.IsMatch(guid, "[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}"))
{
Response.StatusCode = 301;
Response.Status = "301 Moved Permanently";
Response.AddHeader("Location", SiteUri.ToString());
Response.End();
}
Meta.SQL.IDatabase db = new Meta.SQL.Module().Database;
Ps2Css.DB.Request.Module module = new Ps2Css.DB.Request.Module(db);
Ps2Css.DB.Request.Item item = module.GetByID(new Guid(guid));
if (item != null)
{
int diff = (int)Math.Ceiling((DateTime.Now - item.Created).TotalSeconds);
if (diff < InitialDelay)
{
this.wait = InitialDelay - diff;
}
else
{
this.wait = 0;
try
{
Document doc = new Ps2Css.Xml.Document(Encoding.UTF8.GetString(Zlib.Decompress(item.Data)));
this.Styles = doc.Styles.ToArray();
}
catch (Ps2Css.Xml.CorruptedXmlException ex)
{
exception = ex.GetType().ToString();
base.Log("XML parsing error");
}
catch (Exception ex)
{
exception = "System.Exception";
base.Log(ex);
}
}
}
else
{
if (Request.UrlReferrer != null)
{
exception = "StyleNotFound";
}
}
}
/*
* Name function: Compress
* Purpose: compress a part of the byte array into a Zlib Block
* Input: - buffer: byte array
* Output: compressed byte array block, the structure is:
* - magic word
* - max segment size
* - total compressed size
* - total uncompressed size
* - segment list
* - compressed data list
*/
public static byte[] Compress(byte[] buffer)
{
if (buffer == null)
{
throw new ArgumentNullException();
}
MemoryStream headBlock = new MemoryStream();
MemoryStream dataBlock = new MemoryStream();
int numSeg = (int)Math.Ceiling(buffer.Length / (double)maxSegmentSize);
headBlock.WriteValueU32(magic);
headBlock.WriteValueU32(maxSegmentSize);
headBlock.WriteValueU32(0x0); //total compressed size, still to calculate
headBlock.WriteValueS32(buffer.Length); //total uncompressed size
int offset = 0;
for (int i = buffer.Length; i > 0; i -= (int)maxSegmentSize)
{
int copyBytes = Math.Min(i, (int)maxSegmentSize);
uint precCompSize = (uint)dataBlock.Length;
byte[] src = new byte[copyBytes];
Buffer.BlockCopy(buffer, offset, src, 0, copyBytes);
byte[] dst = Zlib.Compress(src);
if (dst.Length == 0)
{
throw new Exception("Zlib compression failed!");
}
dataBlock.WriteBytes(dst);
offset += dst.Length;
headBlock.WriteValueU32((uint)dst.Length); //compressed segment size
headBlock.WriteValueS32(copyBytes); //uncompressed segment size
//Console.WriteLine(" Segment size: {0}, total read: {1}, compr size: {2}", maxSegmentSize, copyBytes, (uint)dataBlock.Length - precCompSize);
}
headBlock.Seek(8, SeekOrigin.Begin);
headBlock.WriteValueS32((int)dataBlock.Length); // total compressed size
byte[] finalBlock = new byte[headBlock.Length + dataBlock.Length];
Buffer.BlockCopy(headBlock.ToArray(), 0, finalBlock, 0, (int)headBlock.Length);
Buffer.BlockCopy(dataBlock.ToArray(), 0, finalBlock, (int)headBlock.Length, (int)dataBlock.Length);
headBlock.Close();
dataBlock.Close();
return(finalBlock);
}
public void DefragV3()
{
Stream.Reopen(true);
long oldsize = Stream.GetLenght();
ArchiveManager am = new ArchiveManager(Path + ".defrag", Key, false)
{
Version = Version
};
am.Stream.Reopen(false);
am.Stream.WriteInt32(Key.FSIG_1);
am.Stream.WriteInt64(0);
am.Stream.WriteInt32(Key.FSIG_2);
int cl = Settings.CompressionLevel;
SetProgressMax?.Invoke(Files.Count);
foreach (IArchiveEntry file in Files)
{
SetProgressNext?.Invoke();
byte[] data = GetFile(file, false);
byte[] compressed = Zlib.Compress(data, cl);
if (data.Length < compressed.Length)
{
compressed = data;
}
file.Offset = am.Stream.Position;
file.Size = data.Length;
file.CSize = compressed.Length;
am.Stream.WriteBytes(compressed);
}
am.Files = Files;
am.SaveFileTable(am.Stream.Position);
am.Stream.Close();
Stream.Close();
File.Delete(Path);
File.Move(Path + ".defrag", Path);
string pkx = Path.Replace(".pck", ".pkx");
if (File.Exists(pkx))
{
File.Delete(pkx);
File.Move(pkx + ".defrag", pkx);
}
ReadFileTable();
Stream.Reopen(true);
long newsize = Stream.GetLenght();
MessageBox.Show($"Old size: {oldsize}\nNew size: {newsize}");
}
static bool CompressFile(string iFileName, string iDest, BinaryWriter writer)
{
int int32 = Convert.ToInt32(new FileInfo(iFileName).Length);
Zlib.FileHeader fileHeader = default(Zlib.FileHeader);
fileHeader.FileName = iDest;
fileHeader.DecompressedSize = int32;
fileHeader.CompressedSize = 0;
FileStream fileStream;
BinaryReader binaryReader;
bool flag;
try
{
fileStream = new FileStream(iFileName, FileMode.Open);
binaryReader = new BinaryReader(fileStream);
}
catch (Exception ex)
{
MessageBox.Show("An error occurred while compressing: " + ex.Message, "Buh?");
flag = false;
return(flag);
}
try
{
byte[] iBytes = binaryReader.ReadBytes(int32);
byte[] buffer = Zlib.CompressChunk(ref iBytes);
fileHeader.CompressedSize = buffer.Length;
if (fileHeader.CompressedSize < 1)
{
throw new Exception("Compressed data was 0 bytes long!");
}
writer.Write(fileHeader.FileName);
writer.Write(fileHeader.DecompressedSize);
writer.Write(fileHeader.CompressedSize);
writer.Write(buffer);
binaryReader.Close();
fileStream.Close();
flag = true;
}
catch (Exception ex2)
{
MessageBox.Show("An error occurred during compression: " + ex2.Message, "Buh?");
binaryReader.Close();
fileStream.Close();
flag = false;
}
return(flag);
}
public override async Task <RpcMessage[]> Receive()
{
CheckDisposed();
var buffer = new byte[BufferSize];
while (true)
{
int read = await stream.ReadAsync(buffer, 0, BufferSize);
if (read == 0)
{
return(null);
}
IEnumerable <byte> bytesRead = buffer.Where((b, i) => i < read);
readBuffer.AddRange(bytesRead);
try
{
byte[] inflated = Zlib.Inflate(readBuffer.ToArray());
string encoded = string.Concat(inflated.Select(Convert.ToChar));
var result = Rencode.Decode(encoded) as object[];
if (result == null)
{
return(null);
}
var messages = new List <RpcMessage>();
const int partsPerMessage = 3;
for (int skip = 0; skip < result.Length; skip += partsPerMessage)
{
object[] messageParts = result.Skip(skip).Take(partsPerMessage).ToArray();
RpcMessage message = RpcMessage.Create(messageParts);
messages.Add(message);
}
readBuffer.Clear();
return(messages.ToArray());
}
catch
{
// Message is incomplete
}
}
}