protected override void Decode(IChannelHandlerContext context, IByteBuffer input, List <object> output)
{
try
{
switch (State)
{
case Socks5InitialRequestDecoderState.Init:
var version = input.ReadByte();
if (version != (byte)SocksVersion.Socks5)
{
throw new DecoderException(
"unsupported version: " + version + " (expected: " + SocksVersion.Socks5 + ')');
}
int authMethodCnt = input.ReadByte();
if (ActualReadableBytes < authMethodCnt)
{
break;
}
var authMethods = new Socks5AuthMethod[authMethodCnt];
for (var i = 0; i < authMethodCnt; i++)
{
authMethods[i] = Socks5AuthMethod.ValueOf(input.ReadByte());
}
output.Add(new DefaultSocks5InitialRequest(authMethods));
Checkpoint(Socks5InitialRequestDecoderState.Success);
break;
case Socks5InitialRequestDecoderState.Success:
var readableBytes = ActualReadableBytes;
if (readableBytes > 0)
{
output.Add(input.ReadRetainedSlice(readableBytes));
}
break;
case Socks5InitialRequestDecoderState.Failure:
input.SkipBytes(ActualReadableBytes);
break;
}
}
catch
(Exception e)
{
Fail(output, e);
}
}
public DefaultSocks5InitialResponse(Socks5AuthMethod authMethod)
{
AuthMethod = authMethod;
}