Readarr/src/NzbDrone.Common/Extensions/GzipExtensions.cs

using System.IO;
using System.IO.Compression;

namespace NzbDrone.Common.Extensions
{
    public static class GzipExtensions
    {
        public static byte[] Decompress(this byte[] data)
        {
            using (var compressedStream = new MemoryStream(data))
            using (var gzip = new GZipStream(compressedStream, CompressionMode.Decompress))
            using (var decompressedStream = new MemoryStream())
            {
                gzip.CopyTo(decompressedStream);
                return decompressedStream.ToArray();
            }
        }

        public static byte[] Compress(this byte[] data)
        {
            using (var compressedStream = new MemoryStream())
            using (var zipStream = new GZipStream(compressedStream, CompressionMode.Compress))
            {
                zipStream.Write(data, 0, data.Length);
                zipStream.Close();
                return compressedStream.ToArray();
            }
        }
    }
}