public byte[] ToArray()
{
using (var buff = new MemoryStream())
{
var header = (int)Fin;
header = (header << 1) + (int)Rsv1;
header = (header << 1) + (int)Rsv2;
header = (header << 1) + (int)Rsv3;
header = (header << 4) + (int)Opcode;
header = (header << 1) + (int)Mask;
header = (header << 7) + (int)PayloadLength;
buff.Write(((ushort)header).InternalToByteArray(Endianness.Big), 0, 2);
if (PayloadLength > 125)
{
buff.Write(ExtendedPayloadLength, 0, PayloadLength == 126 ? 2 : 8);
}
if (Mask == Mask.On)
{
buff.Write(MaskingKey, 0, 4);
}
if (PayloadLength > 0)
{
var bytes = PayloadData.ToArray();
if (PayloadLength < 127)
{
buff.Write(bytes, 0, bytes.Length);
}
else
{
using (var input = new MemoryStream(bytes))
input.CopyTo(buff, 1024);
}
}
#if NET452
buff.Close();
#endif
return(buff.ToArray());
}
}
internal WebSocketFrame(
Fin fin, Opcode opcode, PayloadData payloadData, bool compressed = false, bool mask = true)
{
Fin = fin;
Rsv1 = IsOpcodeData(opcode) && compressed ? Rsv.On : Rsv.Off;
Rsv2 = Rsv.Off;
Rsv3 = Rsv.Off;
Opcode = opcode;
var len = payloadData.Length;
if (len < 126)
{
PayloadLength = (byte)len;
ExtendedPayloadLength = WebSocket.EmptyBytes;
}
else if (len < 0x010000)
{
PayloadLength = (byte)126;
ExtendedPayloadLength = ((ushort)len).InternalToByteArray(Endianness.Big);
}
else
{
PayloadLength = (byte)127;
ExtendedPayloadLength = len.InternalToByteArray(Endianness.Big);
}
if (mask)
{
Mask = Mask.On;
MaskingKey = CreateMaskingKey();
payloadData.Mask(MaskingKey);
}
else
{
Mask = Mask.Off;
MaskingKey = WebSocket.EmptyBytes;
}
PayloadData = payloadData;
}
internal static WebSocketFrame CreateCloseFrame(PayloadData payloadData, bool mask)
{
return(new WebSocketFrame(Fin.Final, Opcode.Close, payloadData, false, mask));
}
internal WebSocketFrame(Opcode opcode, PayloadData payloadData, bool mask = true)
: this(Fin.Final, opcode, payloadData, false, mask)
{
}
static PayloadData()
{
Empty = new PayloadData();
MaxLength = Int64.MaxValue;
}
internal CloseEventArgs(CloseStatusCode code, string reason = null)
{
PayloadData = new PayloadData((ushort)code, reason);
}
internal CloseEventArgs(PayloadData payloadData = null)
{
PayloadData = payloadData ?? new PayloadData();
}
internal CloseEventArgs(ushort code, string reason)
{
PayloadData = new PayloadData(code, reason);
}
internal static WebSocketFrame CreateCloseFrame(PayloadData payloadData, bool mask) => new WebSocketFrame(Fin.Final, Opcode.Close, payloadData ?? new PayloadData(), false, mask);
internal WebSocketFrame(Opcode opcode, PayloadData payloadData)
: this(Fin.Final, opcode, payloadData)
{
}
internal static WebSocketFrame CreateCloseFrame(PayloadData payloadData) => new WebSocketFrame(Fin.Final, Opcode.Close, payloadData ?? new PayloadData());
internal CloseEventArgs(PayloadData payloadData)
{
PayloadData = payloadData;
}
