/// <summary>
/// 收到到数据帧请求
/// </summary>
/// <param name="context">会话对象</param>
/// <param name="frameRequest">数据帧</param>
private void OnWebSocketRequest(IContenxt context, FrameRequest frameRequest)
{
switch (frameRequest.Frame)
{
case FrameCodes.Close:
var frame = new CloseRequest(frameRequest);
this.OnClose(context, frame.StatusCode, frame.CloseReason);
context.Session.Close();
break;
case FrameCodes.Binary:
this.OnBinary(context, frameRequest);
break;
case FrameCodes.Text:
this.OnText(context, frameRequest);
break;
case FrameCodes.Ping:
try
{
var pong = new FrameResponse(FrameCodes.Pong, frameRequest.Content);
var pongContent = pong.ToArraySegment(mask: false);
context.Session.Send(pongContent);
}
catch (Exception)
{
}
finally
{
this.OnPing(context, frameRequest.Content);
}
break;
case FrameCodes.Pong:
context.Session.Publish("Pong", frameRequest.Content);
this.OnPong(context, frameRequest.Content);
break;
default:
break;
}
}
/// <summary>
/// 正常关闭客户端
/// </summary>
/// <param name="code">关闭码</param>
/// <param name="reason">原因</param>
public void Close(StatusCodes code, string reason)
{
var codeBytes = ByteConverter.ToBytes((ushort)(code), Endians.Big);
var reasonBytes = Encoding.UTF8.GetBytes(reason ?? string.Empty);
var content = new byte[codeBytes.Length + reasonBytes.Length];
Array.Copy(codeBytes, 0, content, 0, codeBytes.Length);
Array.Copy(reasonBytes, 0, content, codeBytes.Length, reasonBytes.Length);
var response = new FrameResponse(FrameCodes.Close, content);
try
{
this.Send(response);
}
catch (Exception)
{
}
finally
{
this.session.Close();
}
}
/// <summary>
/// 正常关闭客户端
/// </summary>
/// <param name="code">关闭码</param>
/// <param name="reason">原因</param>
public void Close(StatusCodes code, string reason)
{
var codeBytes = ByteConverter.ToBytes((ushort)(code), Endians.Big);
var reasonBytes = Encoding.UTF8.GetBytes(reason ?? string.Empty);
var content = new byte[codeBytes.Length + reasonBytes.Length];
Array.Copy(codeBytes, 0, content, 0, codeBytes.Length);
Array.Copy(reasonBytes, 0, content, codeBytes.Length, reasonBytes.Length);
var response = new FrameResponse(FrameCodes.Close, content);
try
{
this.SendResponse(response);
}
catch (Exception)
{
}
finally
{
this.Close();
}
}
/// <summary>
/// 收到请求数据
/// </summary>
/// <param name="frame">请求数据</param>
/// <returns></returns>
private async Task OnFrameRequestAsync(FrameRequest frame)
{
switch (frame.Frame)
{
case FrameCodes.Close:
var closeFrame = new CloseRequest(frame);
this.OnClose(closeFrame.StatusCode, closeFrame.CloseReason);
base.Close();
break;
case FrameCodes.Binary:
await this.OnBinaryAsync(frame.Content);
break;
case FrameCodes.Text:
var content = Encoding.UTF8.GetString(frame.Content);
await this.OnTextAsync(content);
break;
case FrameCodes.Ping:
var pongValue = new FrameResponse(FrameCodes.Pong, frame.Content);
this.TrySend(pongValue);
this.OnPing(frame.Content);
break;
case FrameCodes.Pong:
this.ProcessPingPong(frame.Content);
this.OnPong(frame.Content);
break;
default:
break;
}
}
/// <summary>
/// 发送二进制数据
/// </summary>
/// <param name="content">二进制数据</param>
/// <exception cref="SocketException"></exception>
public int SendBinary(byte[] content)
{
var bin = new FrameResponse(FrameCodes.Binary, content);
return(this.Send(bin));
}
/// <summary>
/// 发送二进制数据
/// </summary>
/// <param name="content">二进制数据</param>
/// <exception cref="SocketException"></exception>
public void SendBinary(byte[] content)
{
var response = new FrameResponse(FrameCodes.Binary, content);
this.Send(response);
}
/// <summary>
/// ping指令
/// 服务器将回复pong
/// </summary>
/// <param name="contents">内容</param>
/// <returns></returns>
public int Ping(byte[] contents)
{
var ping = new FrameResponse(FrameCodes.Ping, contents);
return(this.Send(ping));
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="frame"></param>
/// <returns></returns>
private int Send(FrameResponse frame)
{
var buffer = frame.ToArraySegment(mask: true);
return(base.Send(buffer));
}
/// <summary>
/// 发送文本消息
/// </summary>
/// <param name="content">文本内容</param>
/// <exception cref="SocketException"></exception>
public void SendText(string content)
{
var bytes = content == null ? new byte[0] : Encoding.UTF8.GetBytes(content);
var response = new FrameResponse(FrameCodes.Text, bytes);
this.SendResponse(response);
}
/// <summary>
/// 发送二进制数据
/// </summary>
/// <param name="content">二进制数据</param>
/// <exception cref="SocketException"></exception>
public void SendBinary(byte[] content)
{
var response = new FrameResponse(FrameCodes.Binary, content);
this.SendResponse(response);
}