private void Client_Closing(ITcpConnection client)
{
client.Closing -= Client_Closing;
_connections.TryRemove(client.RemoteEndPoint, out _);
ConnectionClosing?.Invoke(client.RemoteEndPoint);
}
private void ReadDataContent(IAsyncResult asyncResult)
{
if (!bindSocket.Connected)
{
return;
}
string message = string.Empty;
DataFrame dataFrame = new DataFrame(receivedDataBuffer);
try
{
if (!IsDataMasked)
{
//WebSocket协议:消息以0x00和0xFF作为填充字节发送
UTF8Encoding encoding = new UTF8Encoding();
int startIndex = 0;
int endIndex = 0;
// Search for the start byte
while (receivedDataBuffer[startIndex] == firstByte[0])
{
startIndex++;
}
// Search for the end byte
endIndex = startIndex + 1;
while (receivedDataBuffer[endIndex] != lastByte[0] && endIndex != maxBufferSize - 1)
{
endIndex++;
}
if (endIndex == maxBufferSize - 1)
{
endIndex = maxBufferSize;
}
// Get the message
message = encoding.GetString(receivedDataBuffer, startIndex, endIndex - startIndex);
}//if
else
{
message = dataFrame.Text;
}
if ((message.Length == maxBufferSize && message[0] == Convert.ToChar(65533)) || message.Length == 0)
{
//断开连接
logger?.Info("message");
if (string.IsNullOrEmpty(message))
{
MessageInfo messageInfo = new MessageInfo()
{
MsgType = MessageType.None,
Message = ""
};
message = JsonConvert.SerializeObject(messageInfo);
}
ConnectionClosing?.Invoke(this, message);
}
else
{
if (DataReceived != null)
{
logger?.Info("接收到的信息 [\"" + message + "\"]");
//消息发送
DataReceived(this, message);
}
Array.Clear(receivedDataBuffer, 0, receivedDataBuffer.Length);
bindSocket.BeginReceive(receivedDataBuffer, 0, receivedDataBuffer.Length, 0, ReadDataContent, null);
}
}
catch (Exception ex)
{
logger?.Error("Socket连接将被终止", ex);
MessageInfo messageInfo = new MessageInfo()
{
MsgType = MessageType.Error,
Message = ex.Message + Environment.NewLine + "Socket连接将被终止"
};
ConnectionClosing?.Invoke(this, JsonConvert.SerializeObject(messageInfo));
}
}
private void OnConnectionClosing(IPEndPoint remote)
{
ConnectionClosing?.Invoke(remote);
}
private void ConnectionClosed()
{
var args = new ConnectionClosingEventArgs(this);
ConnectionClosing?.Invoke(this, args);
}
