void StartClosingHandshake(CloseEventCode code, string reason)
{
Debug.Log("WebSocketChannel closing");
if (closing)
{
return;
}
List <byte> buf = new List <byte> ();
if (!receivedClosingHandshake && code != CloseEventCode.CloseEventCodeNotSpecified)
{
byte hb = (byte)((int)code >> 8);
byte lb = (byte)code;
buf.Add(hb);
buf.Add(lb);
buf.AddRange(System.Text.UTF8Encoding.UTF8.GetBytes(reason));
}
Send(buf.ToArray()); // OpCode.OpCodeClose,
closing = true;
}
void StartClosingHandshake(CloseEventCode code, string reason)
{
if (closing)
{
return;
}
List <byte> buf = new List <byte> ();
//if (!receivedClosingHandshake && code != CloseEventCode.CloseEventCodeNotSpecified) {
if (!receivedClosingHandshake)
{
byte hb = (byte)((int)code >> 8);
byte lb = (byte)code;
buf.Add(hb);
buf.Add(lb);
buf.AddRange(enc.GetBytes(reason));
outgoing.Add(new OutgoingMessage(OpCode.OpCodeClose, buf.ToArray()));
}
closing = true;
}
bool ProcessFrame(List <byte> buffer)
{
FrameData frame;
if (ParseFrame(buffer, out frame) != ParseFrameResult.FrameOK)
{
return(false);
}
switch (frame.opCode)
{
case OpCode.OpCodeContinuation:
// An unexpected continuation frame is received without any leading frame.
if (!hasContinuousFrame)
{
Debug.LogWarning("Received unexpected continuation frame.");
return(false);
}
continuousFrameData.AddRange(new SubArray(buffer, frame.payload, frame.payloadLength));
RemoveProcessed(buffer, frame.end);
if (frame.final)
{
continuousFrameData = new List <byte> ();
hasContinuousFrame = false;
if (continuousFrameOpCode == OpCode.OpCodeText)
{
var message = "";
if (continuousFrameData.Count > 0)
{
var array = continuousFrameData.ToArray();
message = enc.GetString(array, 0, array.Length);
}
OnTextMessage(message);
}
else if (continuousFrameOpCode == OpCode.OpCodeBinary)
{
OnBinaryMessage(continuousFrameData.ToArray());
}
}
break;
case OpCode.OpCodeText:
if (frame.final)
{
String message = "";
if (frame.payloadLength > 0)
{
var payload = new byte[frame.payloadLength];
buffer.CopyTo(frame.payload, payload, 0, frame.payloadLength);
message = enc.GetString(payload, 0, payload.Length);
}
OnTextMessage(message);
RemoveProcessed(buffer, frame.end);
}
else
{
hasContinuousFrame = true;
continuousFrameOpCode = OpCode.OpCodeText;
continuousFrameData.AddRange(new SubArray(buffer, frame.payload, frame.payloadLength));
RemoveProcessed(buffer, frame.end);
}
break;
case OpCode.OpCodeBinary:
if (frame.final)
{
byte[] payload = new byte[frame.payloadLength];
buffer.CopyTo(frame.payload, payload, 0, frame.payloadLength);
OnBinaryMessage(payload);
RemoveProcessed(buffer, frame.end);
}
else
{
hasContinuousFrame = true;
continuousFrameOpCode = OpCode.OpCodeBinary;
continuousFrameData.AddRange(new SubArray(buffer, frame.payload, frame.payloadLength));
RemoveProcessed(buffer, frame.end);
}
break;
case OpCode.OpCodeClose:
if (frame.payloadLength >= 2)
{
byte highByte = buffer [frame.payload + 0];
byte lowByte = buffer [frame.payload + 1];
closeEventCode = (CloseEventCode)(highByte << 8 | lowByte);
}
else
{
closeEventCode = CloseEventCode.CloseEventCodeNoStatusRcvd;
}
if (frame.payloadLength >= 3)
{
byte[] payload = new byte[frame.payloadLength - 2];
buffer.CopyTo(2, payload, 0, frame.payloadLength - 2);
closeEventReason = enc.GetString(payload, 0, payload.Length);
}
else
{
closeEventReason = "";
}
RemoveProcessed(buffer, frame.end);
receivedClosingHandshake = true;
StartClosingHandshake(closeEventCode, closeEventReason);
break;
case OpCode.OpCodePing:
var reply = new byte[frame.payloadLength];
buffer.CopyTo(frame.payload, reply, 0, frame.payloadLength);
RemoveProcessed(buffer, frame.end);
// reply with Pong!
lock (outgoing) {
outgoing.Add(new OutgoingMessage(OpCode.OpCodePong, reply));
}
break;
case OpCode.OpCodePong:
// do nothing with a pong, just remove processed bytes
RemoveProcessed(buffer, frame.end);
break;
default:
Debug.LogError("SHOULD NOT REACH HERE");
break;
}
;
return(buffer.Count != 0);
}
public void Close(CloseEventCode code, string reason)
{
StartClosingHandshake(code, reason);
}
