private async Task <bool> OpenHandshake()
{
bool handshakeResult = false;
try
{
int terminatorIndex = -1;
while (!WebSocketHelpers.FindHeaderTerminator(_receiveBuffer, _receiveBufferOffset, out terminatorIndex))
{
int receiveCount = await _stream.ReadAsync(_receiveBuffer, _receiveBufferOffset, _receiveBuffer.Length - _receiveBufferOffset);
if (receiveCount == 0)
{
throw new WebSocketHandshakeException(string.Format(
"Handshake with remote [{0}] failed due to receive zero bytes.", RemoteEndPoint));
}
BufferDeflector.ReplaceBuffer(_bufferManager, ref _receiveBuffer, ref _receiveBufferOffset, receiveCount);
if (_receiveBufferOffset > 2048)
{
throw new WebSocketHandshakeException(string.Format(
"Handshake with remote [{0}] failed due to receive weird stream.", RemoteEndPoint));
}
}
string secWebSocketKey = string.Empty;
string path = string.Empty;
string query = string.Empty;
handshakeResult = WebSocketServerHandshaker.HandleOpenningHandshakeRequest(this,
_receiveBuffer, 0, terminatorIndex + Consts.HeaderTerminator.Length,
out secWebSocketKey, out path, out query);
_module = _routeResolver.Resolve(path, query);
if (_module == null)
{
throw new WebSocketHandshakeException(string.Format(
"Handshake with remote [{0}] failed due to cannot identify the resource name [{1}{2}].", RemoteEndPoint, path, query));
}
if (handshakeResult)
{
var responseBuffer = WebSocketServerHandshaker.CreateOpenningHandshakeResponse(this, secWebSocketKey);
await _stream.WriteAsync(responseBuffer, 0, responseBuffer.Length);
}
BufferDeflector.ShiftBuffer(_bufferManager, terminatorIndex + Consts.HeaderTerminator.Length, ref _receiveBuffer, ref _receiveBufferOffset);
}
catch (ArgumentOutOfRangeException)
{
handshakeResult = false;
}
catch (WebSocketHandshakeException ex)
{
_log.Error(string.Format("Session [{0}] exception occurred, [{1}].", this, ex.Message), ex);
handshakeResult = false;
}
return(handshakeResult);
}
public void RegisterModule(AsyncWebSocketServerModule module)
{
_modules.Add(module.GetType().FullName, module);
}
private async Task<bool> OpenHandshake()
{
bool handshakeResult = false;
try
{
int terminatorIndex = -1;
while (!WebSocketHelpers.FindHeaderTerminator(_sessionBuffer, _sessionBufferCount, out terminatorIndex))
{
int receiveCount = await _stream.ReadAsync(_receiveBuffer, 0, _receiveBuffer.Length);
if (receiveCount == 0)
{
throw new WebSocketHandshakeException(string.Format(
"Handshake with remote [{0}] failed due to receive zero bytes.", RemoteEndPoint));
}
BufferDeflector.AppendBuffer(_bufferManager, ref _receiveBuffer, receiveCount, ref _sessionBuffer, ref _sessionBufferCount);
if (_sessionBufferCount > 2048)
{
throw new WebSocketHandshakeException(string.Format(
"Handshake with remote [{0}] failed due to receive weird stream.", RemoteEndPoint));
}
}
string secWebSocketKey = string.Empty;
string path = string.Empty;
string query = string.Empty;
handshakeResult = WebSocketServerHandshaker.HandleOpenningHandshakeRequest(this,
_sessionBuffer, 0, terminatorIndex + Consts.HeaderTerminator.Length,
out secWebSocketKey, out path, out query);
_module = _routeResolver.Resolve(path, query);
if (_module == null)
{
throw new WebSocketHandshakeException(string.Format(
"Handshake with remote [{0}] failed due to cannot identify the resource name [{1}{2}].", RemoteEndPoint, path, query));
}
if (handshakeResult)
{
var responseBuffer = WebSocketServerHandshaker.CreateOpenningHandshakeResponse(this, secWebSocketKey);
await _stream.WriteAsync(responseBuffer, 0, responseBuffer.Length);
}
BufferDeflector.ShiftBuffer(_bufferManager, terminatorIndex + Consts.HeaderTerminator.Length, ref _sessionBuffer, ref _sessionBufferCount);
}
catch (WebSocketHandshakeException ex)
{
_log.Error(string.Format("Session [{0}] exception occurred, [{1}].", this, ex.Message), ex);
handshakeResult = false;
}
return handshakeResult;
}
public void RegisterModule(AsyncWebSocketServerModule module)
{
_modules.Add(module.GetType().FullName, module);
}
