/// <summary>
/// 收到请求数据
/// </summary>
/// <param name="frame">请求数据</param>
private void OnFrameRequest(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:
this.OnBinary(frame.Content);
break;
case FrameCodes.Text:
var content = Encoding.UTF8.GetString(frame.Content);
this.OnText(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>
/// 解析请求帧
/// </summary>
/// <param name="buffer">接收到的历史数据</param>
/// <returns></returns>
private IEnumerable <FrameRequest> GetFrameRequestsFromBuffer(ReceiveBuffer buffer)
{
FrameRequest request;
while ((request = FrameRequest.From(buffer)) != null)
{
yield return(request);
}
}
/// <summary>
/// 解析生成请求帧
/// </summary>
/// <param name="context">上下文</param>
/// <returns></returns>
private IEnumerable <FrameRequest> GenerateWebSocketRequest(IContenxt context)
{
while (true)
{
var request = FrameRequest.Parse(context.Buffer);
if (request == null)
{
yield break;
}
yield return(request);
}
}
/// <summary>
/// 关闭请求帧
/// </summary>
/// <param name="request">请求帧</param>
/// <exception cref="ArgumentNullException"></exception>
/// <exception cref="ArgumentException"></exception>
public CloseRequest(FrameRequest request)
{
if (request == null)
{
throw new ArgumentNullException();
}
if (request.Frame != FrameCodes.Close)
{
throw new ArgumentException();
}
this.request = request;
}
/// <summary>
/// 解析生成请求帧
/// </summary>
/// <param name="context">上下文</param>
/// <returns></returns>
private IList <FrameRequest> GenerateWebSocketRequest(IContenxt context)
{
var list = new List <FrameRequest>();
while (true)
{
var request = FrameRequest.Parse(context.Buffer);
if (request == null)
{
return(list);
}
list.Add(request);
}
}
/// <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 reason = StatusCodes.NormalClosure;
if (frameRequest.Content.Length > 1)
{
var status = ByteConverter.ToUInt16(frameRequest.Content, 0, Endians.Big);
reason = (StatusCodes)status;
}
this.OnClose(context, reason);
context.Session.Close();
break;
case FrameCodes.Binary:
this.OnBinary(context, frameRequest.Content);
break;
case FrameCodes.Text:
var content = Encoding.UTF8.GetString(frameRequest.Content);
this.OnText(context, content);
break;
case FrameCodes.Ping:
try
{
var session = (WebSocketSession)context.Session.Wrapper;
session.SendAsync(new FrameResponse(FrameCodes.Pong, frameRequest.Content));
}
catch (Exception)
{
}
finally
{
this.OnPing(context, frameRequest.Content);
}
break;
case FrameCodes.Pong:
this.OnPong(context, frameRequest.Content);
break;
default:
break;
}
}
/// <summary>
/// 收到到数据帧请求
/// </summary>
/// <param name="session">会话对象</param>
/// <param name="request">数据帧</param>
private void OnRecvRequest(T session, FrameRequest request)
{
switch (request.Frame)
{
case FrameCodes.Close:
var reason = StatusCodes.NormalClosure;
if (request.Content.Length > 1)
{
var status = ByteConverter.ToUInt16(request.Content, 0, Endians.Big);
reason = (StatusCodes)status;
}
this.OnClose(session, reason);
session.Close();
break;
case FrameCodes.Binary:
this.OnBinary(session, request.Content);
break;
case FrameCodes.Text:
var content = Encoding.UTF8.GetString(request.Content);
this.OnText(session, content);
break;
case FrameCodes.Ping:
try
{
session.SendResponse(new FrameResponse(FrameCodes.Pong, request.Content));
}
catch (Exception)
{
}
finally
{
this.OnPing(session, request.Content);
}
break;
case FrameCodes.Pong:
this.OnPong(session, request.Content);
break;
default:
break;
}
}
/// <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>
/// <returns></returns>
private async Task OnWebSocketRequestAsync(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:
await this.OnBinaryAsync(context, frameRequest.Content);
break;
case FrameCodes.Text:
var content = Encoding.UTF8.GetString(frameRequest.Content);
await this.OnTextAsync(context, content);
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>
/// 收到文本内容
/// </summary>
/// <param name="frame">数据帧</param>
protected sealed override async void OnText(FrameRequest frame)
{
var text = Encoding.UTF8.GetString(frame.Content);
var package = this.GenerateJsonPacket(text);
if (package == null)
{
return;
}
if (package.state == false)
{
this.ProcessRemoteException(package);
}
else
{
await this.ProcessRequestAsync(package);
}
}
/// <summary>
/// 接收到文本信息时
/// </summary>
/// <param name="context">上下文</param>
/// <param name="frame">数据帧</param>
protected sealed override async void OnText(IContenxt context, FrameRequest frame)
{
var text = Encoding.UTF8.GetString(frame.Content);
var requestContext = this.GenerateRequestContext(context, text);
if (requestContext == null)
{
return;
}
if (requestContext.Packet.state == false)
{
this.ProcessRemoteException(requestContext);
}
else
{
await this.ProcessRequestAsync(requestContext);
}
}
/// <summary>
/// 接收到文本信息时
/// </summary>
/// <param name="context">上下文</param>
/// <param name="frame">数据帧</param>
protected sealed override async void OnText(IContenxt context, FrameRequest frame)
{
var text = Encoding.UTF8.GetString(frame.Content);
var jsonPacket = this.TryGetJsonPacket(context, text);
if (jsonPacket == null)
{
return;
}
var session = (JsonWebSocketSession)context.Session.Wrapper;
var requestContext = new RequestContext(session, jsonPacket, context.AllSessions);
if (jsonPacket.state == false)
{
this.ProcessRemoteException(requestContext);
}
else
{
await this.ProcessRequestAsync(requestContext);
}
}
/// <summary>
/// 解析生成请求帧
/// </summary>
/// <param name="inputStream">数据流</param>
/// <returns></returns>
private IList <FrameRequest> GenerateWebSocketFrame(IStreamReader inputStream)
{
var list = new List <FrameRequest>();
while (true)
{
try
{
var request = FrameRequest.Parse(inputStream, false);
if (request == null)
{
return(list);
}
list.Add(request);
}
catch (NotSupportedException ex)
{
this.Close(StatusCodes.ProtocolError, ex.Message);
return(list);
}
}
}
/// <summary>
/// 解析生成请求帧
/// </summary>
/// <param name="context">上下文</param>
/// <returns></returns>
private IList <FrameRequest> GenerateWebSocketRequest(IContenxt context)
{
var list = new List <FrameRequest>();
while (true)
{
try
{
var request = FrameRequest.Parse(context.Stream);
if (request == null)
{
return(list);
}
list.Add(request);
}
catch (NotSupportedException)
{
context.Session.Close();
return(list);
}
}
}
/// <summary>
/// 解析生成请求帧
/// </summary>
/// <param name="context">上下文</param>
/// <returns></returns>
private IList <FrameRequest> GenerateWebSocketRequest(IContenxt context)
{
var list = new List <FrameRequest>();
while (true)
{
try
{
var request = FrameRequest.Parse(context.StreamReader);
if (request == null)
{
return(list);
}
list.Add(request);
}
catch (NotSupportedException ex)
{
var session = new WebSocketSession(context.Session);
session.Close(StatusCodes.ProtocolError, ex.Message);
return(list);
}
}
}
/// <summary>
/// 收到二进制类型请求时触发此方法
/// </summary>
/// <param name="context">会话对象</param>
/// <param name="frame">帧</param>
protected virtual void OnBinary(IContenxt context, FrameRequest frame)
{
}
/// <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 reason = StatusCodes.NormalClosure;
if (frameRequest.Content.Length > 1)
{
var status = ByteConverter.ToUInt16(frameRequest.Content, 0, Endians.Big);
reason = (StatusCodes)status;
}
this.OnClose(context, reason);
context.Session.Close();
break;
case FrameCodes.Binary:
this.OnBinary(context, frameRequest.Content);
break;
case FrameCodes.Text:
var content = Encoding.UTF8.GetString(frameRequest.Content);
this.OnText(context, content);
break;
case FrameCodes.Ping:
try
{
var session = context.Session.Wrapper as WebSocketSession;
session.Send(new FrameResponse(FrameCodes.Pong, frameRequest.Content));
}
catch (Exception)
{
}
finally
{
this.OnPing(context, frameRequest.Content);
}
break;
case FrameCodes.Pong:
this.OnPong(context, frameRequest.Content);
break;
default:
break;
}
}
/// <summary>
/// 收到服务端的Binary请求
/// </summary>
/// <param name="frame">数据帧</param>
protected virtual void OnBinary(FrameRequest frame)
{
}
/// <summary>
/// 收到服务端的Text请求
/// </summary>
/// <param name="frame">数据帧</param>
protected virtual void OnText(FrameRequest frame)
{
}