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Fix packet compression

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This commit is contained in:
Pokechu22 2017-09-08 17:36:22 -07:00 • committed by ORelio
parent 7ba0c3c8fc
commit c85352f819
2 changed files with 10 additions and 13 deletions
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6
MinecraftClient/Protocol/Handlers/Protocol18.cs
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@ -1421,12 +1421,10 @@ namespace MinecraftClient.Protocol.Handlers
if (compression_treshold > 0) //Compression enabled?
{
if (the_packet.Length > compression_treshold) //Packet long enough for compressing?
if (the_packet.Length >= compression_treshold) //Packet long enough for compressing?
{
byte[] uncompressed_length = getVarInt(the_packet.Length);
byte[] compressed_packet = ZlibUtils.Compress(the_packet);
byte[] compressed_packet_length = getVarInt(compressed_packet.Length);
the_packet = concatBytes(compressed_packet_length, compressed_packet);
the_packet = concatBytes(getVarInt(the_packet.Length), compressed_packet);
}
else
{

17
MinecraftClient/Protocol/Handlers/ZlibUtils.cs
View file

@ -21,17 +21,16 @@ namespace MinecraftClient.Protocol.Handlers
/// <returns>Compressed data as a byte array</returns>
public static byte[] Compress(byte[] to_compress)
{
ZlibStream stream = new ZlibStream(new System.IO.MemoryStream(to_compress, false), CompressionMode.Compress);
List<byte> temp_compression_list = new List<byte>();
byte[] b = new byte[1];
while (true)
byte[] data;
using (System.IO.MemoryStream memstream = new System.IO.MemoryStream())
{
int read = stream.Read(b, 0, 1);
if (read > 0) { temp_compression_list.Add(b[0]); }
else break;
using (ZlibStream stream = new ZlibStream(memstream, CompressionMode.Compress))
{
stream.Write(to_compress, 0, to_compress.Length);
}
data = memstream.ToArray();
}
stream.Close();
return temp_compression_list.ToArray();
return data;
}
/// <summary>