public CodecOutput <string> Encode(CodecInput <string> input)
{
var builder = new StringBuilder();
using (MD5 hash = MD5.Create())
{
byte[] data = hash.ComputeHash(_encodingFormat.GetBytes(input.Content));
for (int i = 0; i < data.Length; i++)
{
builder.Append(data[i].ToString(HashToStringFormat, CultureInfo.InvariantCulture));
}
}
return(new CodecOutput <string> {
Content = builder.ToString()
});
}
public CodecOutput <string> Decode(CodecInput <string> value)
{
var gzBuffer = Convert.FromBase64String(value.Content);
using (MemoryStream ms = new MemoryStream())
{
var conversionLength = BitConverter.ToInt32(gzBuffer, 0);
ms.Write(gzBuffer, 4, gzBuffer.Length - 4);
var buffer = new byte[conversionLength];
ms.Position = 0;
using (var zip = new GZipStream(ms, CompressionMode.Decompress))
zip.Read(buffer, 0, buffer.Length);
return(new CodecOutput <string> {
Content = _encodingFormat.GetString(buffer, 0, buffer.Length)
});
}
}
public CodecOutput <string> Encode(CodecInput <string> value)
{
byte[] buffer = _encodingFormat.GetBytes(value.Content);
using (var ms = new MemoryStream())
{
using (var zip = new GZipStream(ms, CompressionMode.Compress, true))
zip.Write(buffer, 0, buffer.Length);
ms.Position = 0;
var compressed = new byte[ms.Length];
ms.Read(compressed, 0, compressed.Length);
var gzBuffer = new byte[compressed.Length + 4];
Buffer.BlockCopy(compressed, 0, gzBuffer, 4, compressed.Length);
Buffer.BlockCopy(BitConverter.GetBytes(buffer.Length), 0, gzBuffer, 0, 4);
return(new CodecOutput <string> {
Content = Convert.ToBase64String(gzBuffer)
});
}
}
public CodecOutput <string> Decode(CodecInput <string> input)
{
throw new NotSupportedException("Cannot decode MD5");
}
