public static string Decode(ByteStringReader reader,int limit)
{
var l = new VLong(reader).V;
var bytes = reader.ReadBytes((int)l);
if (l > limit) {
return bytes.Slice(0,limit).GetStringUTF8();
}
return bytes.GetStringUTF8();
}
public void ReadByteTest()
{
var arr = new byte[10];
for (int i = 0;i < 10;i++) {
arr[i] = (byte)i;
}
var bytes = new ByteString(arr);
var reader = new ByteStringReader(bytes);
for (int i = 0;i < 10;i++) {
var b = reader.ReadByte();
Assert.AreEqual(b,(byte)i);
}
}
protected Response(ByteStringReader reader)
: base(reader)
{
_resultStatus = reader.ReadShortLE();
}
public Option<Packet> Decode(PacketCipher cipher)
{
if (!_encrypted) {
return Option<Packet>.Some(this);
} else {
try {
var b = cipher.Decrypt(_bytes);
var src = new ByteStringReader(b);
var l = (int)(new VLong(src).V);
var enc = false;
if (l < 0) {
enc = true;
l = -l;
}
if (l + 2 > src.Length) {
throw new SystemException("Packet corrupted");
}
var pkt = new Packet(new ByteString(src.ReadBytes(l)),enc);
var crc = src.ReadShortLE();
if (crc != pkt.Crc) {
throw new SystemException("Invalid CRC");
}
return Option<Packet>.Some(pkt);
} catch(Exception e) {
return Option<Packet>.None;
}
}
}
