internal async Task ReadPayload(Frame frame)
{
ulong len = frame.FullPayloadLen;
if (len > Constant.MaxFrameSize)
{
throw new InvalidDataException("Payload length exceeds max frame length");
}
var payLoad = await ReadBytesAsync(len);
if (frame.Mask && payLoad.Length > 0)
{
Crypto.DecryptPayload(payLoad, frame.MaskKey);
}
switch (frame.OpCode)
{
case OpCode.Text:
var str = Constant.GetString(payLoad);
m_parent.ClientString(this, str);
break;
case OpCode.Binary:
m_parent.ClientData(this, payLoad);
break;
case OpCode.Close:
if (!m_requestClose)
{
await SendCloseAsync(payLoad); //Echo the payload
}
ForceClose();
break;
case OpCode.Ping:
await SendPongAsync(payLoad);
break;
case OpCode.Pong:
m_pingPongTime = DateTime.Now;
break;
case OpCode.Cont:
throw new InvalidDataException("No support for fragmented messages yet");
}
}
private async Task <string> ReadLineAsync()
{
var sb = new StringBuilder();
string lastRead = string.Empty;
while (true)
{
var buf = await ReadBytesAsync(1);
string curRead = Constant.GetString(buf);
if (curRead != "\r" && curRead != "\n")
{
sb.Append(curRead);
}
if (lastRead == "\r" && curRead == "\n")
{
return(sb.ToString());
}
lastRead = curRead;
}
}