private void ServersManager_BeforeSend(ServersManager <Connection> s, Connection c, ServerAsyncEventArgs e)
{
if (c != null && c.Mode == Connection.Modes.WebSocket)
{
//c.BeforeSend(e);
var header = new WebSocketHeader()
{
Fin = true,
Opcode = websocketOpcode.HasValue ? websocketOpcode.Value : c.WebSocketHeader.Opcode,
PayloadLength = e.Count,
};
int headerLength = header.GetHeaderLength();
if (e.OffsetOffset < headerLength)
{
throw new InvalidProgramException(@"TransportLayer.ServersManager_BeforeSend no reserved space for WebSocket header");
}
e.OffsetOffset -= headerLength;
e.Count += headerLength;
header.GenerateHeader(e.OutgoingData);
}
}
private static byte[] PrepareForWebsocket(byte[] message, Opcodes opcode)
{
var wsHeader = new WebSocketHeader()
{
Fin = true,
Opcode = opcode,
PayloadLength = message.Length,
Mask = true,
MaskingKey0 = 0x12,
MaskingKey1 = 0x34,
MaskingKey2 = 0x56,
MaskingKey3 = 0x78,
};
var extra = new byte[wsHeader.GetHeaderLength()];
wsHeader.GenerateHeader(new ArraySegment <byte>(extra));
if (wsHeader.Mask)
{
wsHeader.MaskData(message, 0, message.Length);
}
return(extra);
}
private void SendWebsocket(WebSocketHeader header, ArraySegment <byte> content)
{
int headerLength = header.GetHeaderLength();
var r = EventArgsManager.Get();
r.CopyAddressesFrom(connection);
r.Count = headerLength + content.Count;
r.AllocateBuffer();
header.GenerateHeader(r.OutgoingData);
Buffer.BlockCopy(content.Array, content.Offset, r.Buffer, r.Offset + headerLength, content.Count);
SendAsyncSip(r);
}
