/// <summary>
/// Handles an incoming raw HTTP response.
/// </summary>
/// <param name="channel"></param>
/// <param name="obj"></param>
private void HandleIncomingResponse(ISockNetChannel channel, ref object obj)
{
if (!(obj is ChunkedBuffer))
{
return;
}
ChunkedBuffer data = (ChunkedBuffer)obj;
if (currentIncoming == null)
{
currentIncoming = new HttpResponse(channel.BufferPool);
}
if (currentIncoming.Parse(data.Stream, channel.IsActive))
{
if (SockNetLogger.DebugEnabled)
{
SockNetLogger.Log(SockNetLogger.LogLevel.DEBUG, this, "Received HTTP Response: Command Line: [{0}], Body Size [{1}]", currentIncoming.CommandLine, currentIncoming.BodySize);
}
obj = currentIncoming;
currentIncoming = null;
}
}
/// <summary>
/// Invoked when the channel has sucessfully attached.
/// </summary>
/// <param name="channel"></param>
/// <param name="error"></param>
/// <param name="promise"></param>
private void OnAttached(ISockNetChannel channel, Exception error, Promise <ISockNetChannel> promise)
{
promise.OnFulfilled = null;
Pipe.HandleOpened();
State = RemoteSockNetChannelState.Connected;
}
/// <summary>
/// Installs a per channel module.
/// </summary>
/// <param name="channel"></param>
public void Install(ISockNetChannel channel)
{
ISockNetChannelModule module = NewPerChannelModule();
if (channel.SetAttribute(ModuleName, module, false))
{
module.Install(channel);
}
}
/// <summary>
/// Installs a per channel module.
/// </summary>
/// <param name="channel"></param>
public void Install(ISockNetChannel channel)
{
ISockNetChannelModule module = NewPerChannelModule();
if (channel.SetAttribute(ModuleName, module, false))
{
module.Install(channel);
}
}
/// <summary>
/// Handles incoming raw frames and translates them into WebSocketFrame(s)
/// </summary>
/// <param name="channel"></param>
/// <param name="request"></param>
private void HandleIncomingFrames(ISockNetChannel channel, ref object data)
{
if (!(data is ChunkedBuffer))
{
return;
}
ChunkedBuffer stream = (ChunkedBuffer)data;
long startingPosition = stream.ReadPosition;
try
{
WebSocketFrame frame = WebSocketFrame.ParseFrame(stream.Stream);
if (combineContinuations)
{
if (frame.IsFinished)
{
UpdateContinuation(ref continuationFrame, frame);
data = continuationFrame;
continuationFrame = null;
}
else
{
UpdateContinuation(ref continuationFrame, frame);
}
}
else
{
data = frame;
}
if (SockNetLogger.DebugEnabled)
{
SockNetLogger.Log(SockNetLogger.LogLevel.DEBUG, this, "Received WebSocket message. Size: {0}, Type: {1}, IsFinished: {2}", frame.Data.Length, Enum.GetName(typeof(WebSocketFrame.WebSocketFrameOperation), frame.Operation), frame.IsFinished);
}
}
catch (EndOfStreamException)
{
// websocket frame isn't done
stream.ReadPosition = startingPosition;
}
catch (ArgumentOutOfRangeException)
{
// websocket frame isn't done
stream.ReadPosition = startingPosition;
}
catch (Exception e)
{
SockNetLogger.Log(SockNetLogger.LogLevel.ERROR, this, "Unable to parse web-socket request", e);
channel.Close();
}
}
/// <summary>
/// Uninstalls a per channel module.
/// </summary>
/// <param name="channel"></param>
public void Uninstall(ISockNetChannel channel)
{
object module;
if (channel.TryGetAttribute(ModuleName, out module))
{
((ISockNetChannelModule)module).Uninstall(channel);
channel.RemoveAttribute(ModuleName);
}
}
/// <summary>
/// Uninstalls this module.
/// </summary>
/// <param name="channel"></param>
public void Uninstall(ISockNetChannel channel)
{
channel.Pipe.RemoveIncoming <HttpRequest>(HandleHandshake);
channel.Pipe.RemoveIncoming <object>(HandleIncomingFrames);
channel.Pipe.RemoveOutgoing <object>(HandleOutgoingFrames);
if (channel.HasModule(httpModule))
{
channel.RemoveModule(httpModule);
}
}
/// <summary>
/// Uninstalls a per channel module.
/// </summary>
/// <param name="channel"></param>
public void Uninstall(ISockNetChannel channel)
{
object module;
if (channel.TryGetAttribute(ModuleName, out module))
{
((ISockNetChannelModule)module).Uninstall(channel);
channel.RemoveAttribute(ModuleName);
}
}
/// <summary>
/// Handles an incomming raw Gds message.
/// </summary>
/// <param name="channel"></param>
/// <param name="obj"></param>
public void HandleIncoming(ISockNetChannel channel, ref object obj)
{
if (!(obj is ChunkedBuffer))
{
return;
}
ChunkedBuffer stream = (ChunkedBuffer)obj;
long startingPosition = stream.ReadPosition;
try
{
GdsFrame frame = GdsFrame.ParseFrame(stream.Stream, channel.BufferPool);
if (combineChunks)
{
if (frame.IsComplete)
{
UpdateChunk(ref chunkedFrame, frame, channel);
obj = chunkedFrame;
chunkedFrame = null;
}
else
{
UpdateChunk(ref chunkedFrame, frame, channel);
}
}
else
{
obj = frame;
}
if (SockNetLogger.DebugEnabled)
{
SockNetLogger.Log(SockNetLogger.LogLevel.DEBUG, this, "Received Gds message. Body Size: {0}, Type: {1}, IsComplete: {2}", frame.Body.AvailableBytesToRead, Enum.GetName(typeof(GdsFrame.GdsFrameType), frame.Type), frame.IsComplete);
}
}
catch (EndOfStreamException)
{
// frame isn't done
stream.ReadPosition = startingPosition;
}
catch (ArgumentOutOfRangeException)
{
// frame isn't done
stream.ReadPosition = startingPosition;
}
catch (Exception e)
{
SockNetLogger.Log(SockNetLogger.LogLevel.ERROR, this, "Unable to parse Gds message", e);
}
}
/// <summary>
/// Handles WebSocketFrame(s) and translates them into raw frames.
/// </summary>
/// <param name="channel"></param>
/// <param name="request"></param>
private void HandleOutgoingFrames(ISockNetChannel channel, ref object data)
{
if (!(data is WebSocketFrame))
{
return;
}
WebSocketFrame webSocketFrame = (WebSocketFrame)data;
ChunkedBuffer buffer = new ChunkedBuffer(channel.BufferPool);
webSocketFrame.Write(buffer.Stream);
data = buffer;
}
/// <summary>
/// Clones this pipe and sets the given parent.
/// </summary>
/// <param name="newParent"></param>
/// <param name="includeModules"></param>
/// <returns></returns>
public SockNetChannelPipe Clone(ISockNetChannel newParent, bool includeModules = true)
{
SockNetChannelPipe newPipe = new SockNetChannelPipe(newParent);
lock (openedHandlers)
{
foreach (OnOpenedDelegate del in openedHandlers)
{
if (includeModules || !(del.Target is ISockNetChannelModule))
{
newPipe.openedHandlers.AddLast(del);
}
}
}
lock (closedHandlers)
{
foreach (OnClosedDelegate del in closedHandlers)
{
if (includeModules || !(del.Target is ISockNetChannelModule))
{
newPipe.closedHandlers.AddLast(del);
}
}
}
lock (incomingHandlers)
{
foreach (IDelegateReference del in incomingHandlers)
{
if (includeModules || !(del.Delegate.Target is ISockNetChannelModule))
{
newPipe.incomingHandlers.AddLast(del);
}
}
}
lock (outgoingHandlers)
{
foreach (IDelegateReference del in outgoingHandlers)
{
if (includeModules || !(del.Delegate.Target is ISockNetChannelModule))
{
newPipe.outgoingHandlers.AddLast(del);
}
}
}
return(newPipe);
}
/// <summary>
/// Handles an outgoing HttpRequest and converts it to a raw buffer.
/// </summary>
/// <param name="channel"></param>
/// <param name="obj"></param>
public void HandleOutgoing(ISockNetChannel channel, ref object obj)
{
if (!(obj is GdsFrame))
{
return;
}
GdsFrame gdsFrame = (GdsFrame)obj;
ChunkedBuffer buffer = new ChunkedBuffer(channel.BufferPool);
gdsFrame.Write(buffer.Stream);
gdsFrame.Dispose();
obj = buffer;
}
/// <summary>
/// Handles the WebSocket handshake.
/// </summary>
/// <param name="channel"></param>
/// <param name="request"></param>
private void HandleHandshake(ISockNetChannel channel, ref HttpRequest request)
{
string connection = request.Header["Connection"];
string upgrade = request.Header["Upgrade"];
string securityKey = request.Header[WebSocketUtil.WebSocketKeyHeader];
if (connection != null && upgrade != null && securityKey != null && "websocket".Equals(upgrade.Trim().ToLower()) && "upgrade".Equals(connection.Trim().ToLower()))
{
string[] requestProtocols = request.Headers[WebSocketUtil.WebSocketProtocolHeader];
List <string> handledProtocols = new List <string>();
if (requestProtocols != null && protocolDelegate != null)
{
for (int i = 0; i < requestProtocols.Length; i++)
{
if (protocolDelegate(channel, requestProtocols[i]))
{
handledProtocols.Add(requestProtocols[i]);
}
}
}
HttpResponse response = new HttpResponse(channel.BufferPool)
{
Version = "HTTP/1.1",
Code = "101",
Reason = "Switching Protocols"
};
response.Header["Upgrade"] = "websocket";
response.Header["Connection"] = "Upgrade";
response.Header[WebSocketUtil.WebSocketAcceptHeader] = WebSocketUtil.GenerateAccept(securityKey);
response.Header[WebSocketUtil.WebSocketProtocolHeader] = string.Join(",", handledProtocols.ToArray());
channel.Send(response);
channel.RemoveModule(httpModule);
channel.Pipe.AddIncomingFirst <object>(HandleIncomingFrames);
channel.Pipe.AddOutgoingLast <object>(HandleOutgoingFrames);
}
else
{
SockNetLogger.Log(SockNetLogger.LogLevel.ERROR, this, "Expecting upgrade request.");
channel.Close();
}
}
/// <summary>
/// Invoked on channel connect.
/// </summary>
/// <param name="channel"></param>
public void OnConnected(ISockNetChannel channel)
{
SockNetLogger.Log(SockNetLogger.LogLevel.INFO, this, "Sending WebSocket upgrade request.");
channel.Pipe.AddIncomingLast <HttpResponse>(HandleHandshake);
HttpRequest request = new HttpRequest(channel.BufferPool)
{
Action = "GET",
Path = path,
Version = "HTTP/1.1"
};
request.Header["Host"] = hostname;
request.Header["Upgrade"] = "websocket";
request.Header["Connection"] = "Upgrade";
request.Header[WebSocketUtil.WebSocketKeyHeader] = secKey;
request.Header[WebSocketUtil.WebSocketVersionHeader] = "13";
channel.Send(request);
}
/// <summary>
/// Handles an outgoing HttpRequest and converts it to a raw buffer.
/// </summary>
/// <param name="channel"></param>
/// <param name="obj"></param>
private void HandleOutgoingRequest(ISockNetChannel channel, ref object obj)
{
if (!(obj is HttpRequest))
{
return;
}
HttpRequest data = (HttpRequest)obj;
if (SockNetLogger.DebugEnabled)
{
SockNetLogger.Log(SockNetLogger.LogLevel.DEBUG, this, "Sending HTTP Request: Command Line: [{0}], Body Size [{1}]", data.CommandLine, data.BodySize);
}
ChunkedBuffer buffer = new ChunkedBuffer(channel.BufferPool);
data.Write(buffer.Stream);
data.Dispose();
obj = buffer;
}
/// <summary>
/// Handles the WebSocket handshake.
/// </summary>
/// <param name="channel"></param>
/// <param name="request"></param>
private void HandleHandshake(ISockNetChannel channel, ref HttpResponse data)
{
if (expectedAccept.Equals(data.Header[WebSocketUtil.WebSocketAcceptHeader]))
{
SockNetLogger.Log(SockNetLogger.LogLevel.INFO, this, "Established Web-Socket connection.");
channel.Pipe.RemoveIncoming <HttpResponse>(HandleHandshake);
channel.Pipe.AddIncomingFirst <object>(HandleIncomingFrames);
channel.Pipe.AddOutgoingLast <object>(HandleOutgoingFrames);
channel.RemoveModule(httpModule);
if (onWebSocketEstablished != null)
{
onWebSocketEstablished(channel);
}
}
else
{
SockNetLogger.Log(SockNetLogger.LogLevel.ERROR, this, "Web-Socket handshake incomplete.");
channel.Close();
}
}
public void Install(ISockNetChannel channel)
{
channel.Pipe.AddIncomingFirst <object>(HandleIncoming);
channel.Pipe.AddOutgoingLast <object>(HandleOutgoing);
}
/// <summary>
/// Updates the given chunked frame with a new frame.
/// </summary>
/// <param name="frame"></param>
private static void UpdateChunk(ref GdsFrame chunkedFrame, GdsFrame frame, ISockNetChannel channel)
{
if (chunkedFrame == null)
{
chunkedFrame = frame; // set initial frame
}
else
{
if (frame.Type == GdsFrame.GdsFrameType.Ping || frame.Type == GdsFrame.GdsFrameType.Pong || frame.Type == GdsFrame.GdsFrameType.Close)
{
chunkedFrame = frame;
}
GdsFrame.GdsFrameType type = chunkedFrame.Type;
ChunkedBuffer body = null;
if (frame.Type == GdsFrame.GdsFrameType.BodyOnly || frame.Type == GdsFrame.GdsFrameType.Full)
{
if (type == GdsFrame.GdsFrameType.HeadersOnly)
{
type = GdsFrame.GdsFrameType.Full;
}
body = new ChunkedBuffer(channel.BufferPool);
chunkedFrame.Body.DrainToStreamSync(body.Stream).Close();
frame.Body.DrainToStreamSync(body.Stream).Close();
}
Dictionary <string, byte[]> headers = null;
if (frame.Type == GdsFrame.GdsFrameType.HeadersOnly || frame.Type == GdsFrame.GdsFrameType.Full)
{
if (type == GdsFrame.GdsFrameType.BodyOnly)
{
type = GdsFrame.GdsFrameType.Full;
}
headers = new Dictionary <string, byte[]>(StringComparer.OrdinalIgnoreCase);
foreach (KeyValuePair <string, byte[]> kvp in chunkedFrame.Headers)
{
headers[kvp.Key] = kvp.Value;
}
foreach (KeyValuePair <string, byte[]> kvp in frame.Headers)
{
headers[kvp.Key] = kvp.Value;
}
}
chunkedFrame.Dispose();
frame.Dispose();
chunkedFrame = GdsFrame.NewContentFrame(frame.StreamId, headers, false, body, frame.IsComplete);
}
}
/// <summary>
/// Handles the WebSocket handshake.
/// </summary>
/// <param name="channel"></param>
/// <param name="request"></param>
private void HandleHandshake(ISockNetChannel channel, ref HttpRequest request)
{
string connection = request.Header["Connection"];
string upgrade = request.Header["Upgrade"];
string securityKey = request.Header[WebSocketUtil.WebSocketKeyHeader];
if (connection != null && upgrade != null && securityKey != null && "websocket".Equals(upgrade.Trim().ToLower()) && "upgrade".Equals(connection.Trim().ToLower()))
{
string[] requestProtocols = request.Headers[WebSocketUtil.WebSocketProtocolHeader];
List<string> handledProtocols = new List<string>();
if (requestProtocols != null && protocolDelegate != null)
{
for (int i = 0; i < requestProtocols.Length; i++)
{
if (protocolDelegate(channel, requestProtocols[i]))
{
handledProtocols.Add(requestProtocols[i]);
}
}
}
HttpResponse response = new HttpResponse(channel.BufferPool)
{
Version = "HTTP/1.1",
Code = "101",
Reason = "Switching Protocols"
};
response.Header["Upgrade"] = "websocket";
response.Header["Connection"] = "Upgrade";
response.Header[WebSocketUtil.WebSocketAcceptHeader] = WebSocketUtil.GenerateAccept(securityKey);
response.Header[WebSocketUtil.WebSocketProtocolHeader] = string.Join(",", handledProtocols.ToArray());
channel.Send(response);
channel.RemoveModule(httpModule);
channel.Pipe.AddIncomingFirst<object>(HandleIncomingFrames);
channel.Pipe.AddOutgoingLast<object>(HandleOutgoingFrames);
}
else
{
SockNetLogger.Log(SockNetLogger.LogLevel.ERROR, this, "Expecting upgrade request.");
channel.Close();
}
}
/// <summary>
/// Invoked when there is outgoing data on the given channel.
/// </summary>
/// <param name="channel">the channel with the data</param>
/// <param name="data">the data</param>
public virtual void OnOutgoingData(ISockNetChannel channel, ref T data)
{
// noop
}
/// <summary>
/// Updates the given chunked frame with a new frame.
/// </summary>
/// <param name="frame"></param>
private static void UpdateChunk(ref GdsFrame chunkedFrame, GdsFrame frame, ISockNetChannel channel)
{
if (chunkedFrame == null)
{
chunkedFrame = frame; // set initial frame
}
else
{
if (frame.Type == GdsFrame.GdsFrameType.Ping || frame.Type == GdsFrame.GdsFrameType.Pong || frame.Type == GdsFrame.GdsFrameType.Close)
{
chunkedFrame = frame;
}
GdsFrame.GdsFrameType type = chunkedFrame.Type;
ChunkedBuffer body = null;
if (frame.Type == GdsFrame.GdsFrameType.BodyOnly || frame.Type == GdsFrame.GdsFrameType.Full)
{
if (type == GdsFrame.GdsFrameType.HeadersOnly)
{
type = GdsFrame.GdsFrameType.Full;
}
body = new ChunkedBuffer(channel.BufferPool);
chunkedFrame.Body.DrainToStreamSync(body.Stream).Close();
frame.Body.DrainToStreamSync(body.Stream).Close();
}
Dictionary<string, byte[]> headers = null;
if (frame.Type == GdsFrame.GdsFrameType.HeadersOnly || frame.Type == GdsFrame.GdsFrameType.Full)
{
if (type == GdsFrame.GdsFrameType.BodyOnly)
{
type = GdsFrame.GdsFrameType.Full;
}
headers = new Dictionary<string, byte[]>(StringComparer.OrdinalIgnoreCase);
foreach (KeyValuePair<string, byte[]> kvp in chunkedFrame.Headers)
{
headers[kvp.Key] = kvp.Value;
}
foreach (KeyValuePair<string, byte[]> kvp in frame.Headers)
{
headers[kvp.Key] = kvp.Value;
}
}
chunkedFrame.Dispose();
frame.Dispose();
chunkedFrame = GdsFrame.NewContentFrame(frame.StreamId, headers, false, body, frame.IsComplete);
}
}
/// <summary>
/// Installs this module.
/// </summary>
/// <param name="channel"></param>
public void Install(ISockNetChannel channel)
{
channel.AddModule(httpModule);
channel.Pipe.AddOpenedLast(OnConnected);
}
/// <summary>
/// Uninstalls this module.
/// </summary>
/// <param name="channel"></param>
public void Uninstall(ISockNetChannel channel)
{
channel.Pipe.RemoveIncoming<HttpResponse>(HandleHandshake);
channel.Pipe.RemoveIncoming<object>(HandleIncomingFrames);
channel.Pipe.RemoveOutgoing<object>(HandleOutgoingFrames);
channel.Pipe.RemoveOpened(OnConnected);
if (channel.HasModule(httpModule))
{
channel.RemoveModule(httpModule);
}
}
/// <summary>
/// Installs this module.
/// </summary>
/// <param name="channel"></param>
public void Install(ISockNetChannel channel)
{
channel.AddModule(httpModule);
channel.Pipe.AddIncomingLast <HttpRequest>(HandleHandshake);
}
/// <summary>
/// Handles an incomming raw Gds message.
/// </summary>
/// <param name="channel"></param>
/// <param name="obj"></param>
public void HandleIncoming(ISockNetChannel channel, ref object obj)
{
if (!(obj is ChunkedBuffer))
{
return;
}
ChunkedBuffer stream = (ChunkedBuffer)obj;
long startingPosition = stream.ReadPosition;
try
{
GdsFrame frame = GdsFrame.ParseFrame(stream.Stream, channel.BufferPool);
if (combineChunks)
{
if (frame.IsComplete)
{
UpdateChunk(ref chunkedFrame, frame, channel);
obj = chunkedFrame;
chunkedFrame = null;
}
else
{
UpdateChunk(ref chunkedFrame, frame, channel);
}
}
else
{
obj = frame;
}
if (SockNetLogger.DebugEnabled)
{
SockNetLogger.Log(SockNetLogger.LogLevel.DEBUG, this, "Received Gds message. Body Size: {0}, Type: {1}, IsComplete: {2}", frame.Body.AvailableBytesToRead, Enum.GetName(typeof(GdsFrame.GdsFrameType), frame.Type), frame.IsComplete);
}
}
catch (EndOfStreamException)
{
// frame isn't done
stream.ReadPosition = startingPosition;
}
catch (ArgumentOutOfRangeException)
{
// frame isn't done
stream.ReadPosition = startingPosition;
}
catch (Exception e)
{
SockNetLogger.Log(SockNetLogger.LogLevel.ERROR, this, "Unable to parse Gds message", e);
}
}
/// <summary>
/// Invoked when the channel opens.
/// </summary>
/// <param name="channel">the channel that opened</param>
public virtual void OnOpen(ISockNetChannel channel)
{
// noop
}
/// <summary>
/// Installs this module.
/// </summary>
/// <param name="channel"></param>
public void Install(ISockNetChannel channel)
{
channel.AddModule(httpModule);
channel.Pipe.AddOpenedLast(OnConnected);
}
/// <summary>
/// Handles an outgoing HttpResponse and converts it into a raw buffer.
/// </summary>
/// <param name="channel"></param>
/// <param name="obj"></param>
private void HandleOutgoingResponse(ISockNetChannel channel, ref object obj)
{
if (!(obj is HttpResponse))
{
return;
}
HttpResponse data = (HttpResponse)obj;
if (SockNetLogger.DebugEnabled)
{
SockNetLogger.Log(SockNetLogger.LogLevel.DEBUG, this, "Sending HTTP Response: Command Line: [{0}], Body Size [{1}]", data.CommandLine, data.BodySize);
}
ChunkedBuffer buffer = new ChunkedBuffer(channel.BufferPool);
data.Write(buffer.Stream);
data.Dispose();
obj = buffer;
}
/// <summary>
/// Handles incoming raw frames and translates them into WebSocketFrame(s)
/// </summary>
/// <param name="channel"></param>
/// <param name="request"></param>
private void HandleIncomingFrames(ISockNetChannel channel, ref object data)
{
if (!(data is ChunkedBuffer))
{
return;
}
ChunkedBuffer stream = (ChunkedBuffer)data;
long startingPosition = stream.ReadPosition;
try
{
WebSocketFrame frame = WebSocketFrame.ParseFrame(stream.Stream);
if (combineContinuations)
{
if (frame.IsFinished)
{
UpdateContinuation(ref continuationFrame, frame);
data = continuationFrame;
continuationFrame = null;
}
else
{
UpdateContinuation(ref continuationFrame, frame);
}
}
else
{
data = frame;
}
if (SockNetLogger.DebugEnabled)
{
SockNetLogger.Log(SockNetLogger.LogLevel.DEBUG, this, "Received WebSocket message. Size: {0}, Type: {1}, IsFinished: {2}", frame.Data.Length, Enum.GetName(typeof(WebSocketFrame.WebSocketFrameOperation), frame.Operation), frame.IsFinished);
}
}
catch (EndOfStreamException)
{
// websocket frame isn't done
stream.ReadPosition = startingPosition;
}
catch (ArgumentOutOfRangeException)
{
// websocket frame isn't done
stream.ReadPosition = startingPosition;
}
catch (Exception e)
{
SockNetLogger.Log(SockNetLogger.LogLevel.ERROR, this, "Unable to parse web-socket request", e);
channel.Close();
}
}
/// <summary>
/// Invoked when the channel closes.
/// </summary>
/// <param name="channel">the channel that closed</param>
public virtual void OnClose(ISockNetChannel channel)
{
// noop
}
public void Uninstall(ISockNetChannel channel)
{
channel.Pipe.RemoveIncoming <object>(HandleIncoming);
channel.Pipe.RemoveOutgoing <object>(HandleOutgoing);
}
/// <summary>
/// Handles an outgoing HttpRequest and converts it to a raw buffer.
/// </summary>
/// <param name="channel"></param>
/// <param name="obj"></param>
public void HandleOutgoing(ISockNetChannel channel, ref object obj)
{
if (!(obj is GdsFrame))
{
return;
}
GdsFrame gdsFrame = (GdsFrame)obj;
ChunkedBuffer buffer = new ChunkedBuffer(channel.BufferPool);
gdsFrame.Write(buffer.Stream);
gdsFrame.Dispose();
obj = buffer;
}
/// <summary>
/// Installs this module.
/// </summary>
/// <param name="channel"></param>
public void Install(ISockNetChannel channel)
{
channel.AddModule(httpModule);
channel.Pipe.AddIncomingLast<HttpRequest>(HandleHandshake);
}
public void Install(ISockNetChannel channel)
{
channel.Pipe.AddIncomingFirst<object>(HandleIncoming);
channel.Pipe.AddOutgoingLast<object>(HandleOutgoing);
}
/// <summary>
/// Invoked on channel connect.
/// </summary>
/// <param name="channel"></param>
public void OnConnected(ISockNetChannel channel)
{
SockNetLogger.Log(SockNetLogger.LogLevel.INFO, this, "Sending WebSocket upgrade request.");
channel.Pipe.AddIncomingLast<HttpResponse>(HandleHandshake);
HttpRequest request = new HttpRequest(channel.BufferPool)
{
Action = "GET",
Path = path,
Version = "HTTP/1.1"
};
request.Header["Host"] = hostname;
request.Header["Upgrade"] = "websocket";
request.Header["Connection"] = "Upgrade";
request.Header[WebSocketUtil.WebSocketKeyHeader] = secKey;
request.Header[WebSocketUtil.WebSocketVersionHeader] = "13";
channel.Send(request);
}
public void Uninstall(ISockNetChannel channel)
{
channel.Pipe.RemoveIncoming<object>(HandleIncoming);
channel.Pipe.RemoveOutgoing<object>(HandleOutgoing);
}
/// <summary>
/// Handles the WebSocket handshake.
/// </summary>
/// <param name="channel"></param>
/// <param name="request"></param>
private void HandleHandshake(ISockNetChannel channel, ref HttpResponse data)
{
if (expectedAccept.Equals(data.Header[WebSocketUtil.WebSocketAcceptHeader]))
{
SockNetLogger.Log(SockNetLogger.LogLevel.INFO, this, "Established Web-Socket connection.");
channel.Pipe.RemoveIncoming<HttpResponse>(HandleHandshake);
channel.Pipe.AddIncomingFirst<object>(HandleIncomingFrames);
channel.Pipe.AddOutgoingLast<object>(HandleOutgoingFrames);
channel.RemoveModule(httpModule);
if (onWebSocketEstablished != null)
{
onWebSocketEstablished(channel);
}
}
else
{
SockNetLogger.Log(SockNetLogger.LogLevel.ERROR, this, "Web-Socket handshake incomplete.");
channel.Close();
}
}
/// <summary>
/// Creates a pipe with the given parent.
/// </summary>
/// <param name="parent"></param>
public SockNetChannelPipe(ISockNetChannel parent)
{
this.parent = parent;
}
/// <summary>
/// Handles WebSocketFrame(s) and translates them into raw frames.
/// </summary>
/// <param name="channel"></param>
/// <param name="request"></param>
private void HandleOutgoingFrames(ISockNetChannel channel, ref object data)
{
if (!(data is WebSocketFrame))
{
return;
}
WebSocketFrame webSocketFrame = (WebSocketFrame)data;
ChunkedBuffer buffer = new ChunkedBuffer(channel.BufferPool);
webSocketFrame.Write(buffer.Stream);
data = buffer;
}
/// <summary>
/// Handles an incomming raw HTTP response.
/// </summary>
/// <param name="channel"></param>
/// <param name="obj"></param>
private void HandleIncomingRequest(ISockNetChannel channel, ref object obj)
{
if (!(obj is ChunkedBuffer))
{
return;
}
ChunkedBuffer data = (ChunkedBuffer)obj;
if (currentIncoming == null)
{
currentIncoming = new HttpRequest(channel.BufferPool);
}
if (currentIncoming.Parse(data.Stream, channel.IsActive))
{
if (SockNetLogger.DebugEnabled)
{
SockNetLogger.Log(SockNetLogger.LogLevel.DEBUG, this, "Received HTTP Request: Command Line: [{0}], Body Size [{1}]", currentIncoming.CommandLine, currentIncoming.BodySize);
}
obj = currentIncoming;
currentIncoming = null;
}
}
