internal static ClassifyState TransitionExpectProtocolError(
ClassifyState state, Frame frame, ref ProtocolError error, ref FrameDisposition disposition, Logger logger)
{
if (state != ClassifyState.ExpectProtocolError || frame == null || frame.Count == 0 ||
frame.Framelets[0].Type != FrameletType.ProtocolError)
{
return(ClassifyState.InternalStateError);
}
if (frame.Count > 1)
{
logger.Site().Error("Protocol error frame had trailing framelets.");
return(ClassifyState.ErrorInErrorFrame);
}
var framelet = frame.Framelets[0];
var inputBuffer = new InputBuffer(framelet.Contents);
var fastBinaryReader = new FastBinaryReader <InputBuffer>(inputBuffer, version: 1);
switch (errorDeserializer.TryDeserialize(fastBinaryReader, out error))
{
case Deserialize.Result.Success:
break;
default:
logger.Site().Error("Didn't get a valid {0}.", nameof(ProtocolError));
return(ClassifyState.ErrorInErrorFrame);
}
logger.Site().Debug("Deserialized {0} with code {1}.", nameof(ProtocolError), error.error_code);
disposition = FrameDisposition.HandleProtocolError;
return(ClassifyState.ClassifiedValidFrame);
}
internal static ClassifyState TransitionValidFrame(
ClassifyState state, EpoxyHeaders headers, ref FrameDisposition disposition)
{
if (state != ClassifyState.ValidFrame || headers == null)
{
return(ClassifyState.InternalStateError);
}
switch (headers.message_type)
{
case EpoxyMessageType.REQUEST:
disposition = FrameDisposition.DeliverRequestToService;
return(ClassifyState.ClassifiedValidFrame);
case EpoxyMessageType.RESPONSE:
disposition = FrameDisposition.DeliverResponseToProxy;
return(ClassifyState.ClassifiedValidFrame);
case EpoxyMessageType.EVENT:
disposition = FrameDisposition.DeliverEventToService;
return(ClassifyState.ClassifiedValidFrame);
default:
return(ClassifyState.InternalStateError);
}
}
internal static ClassifyState TransitionValidFrame(
ClassifyState state, EpoxyHeaders headers, ref FrameDisposition disposition)
{
if (state != ClassifyState.ValidFrame || headers == null)
{
return(ClassifyState.InternalStateError);
}
switch (headers.payload_type)
{
case PayloadType.Request:
disposition = FrameDisposition.DeliverRequestToService;
return(ClassifyState.ClassifiedValidFrame);
case PayloadType.Response:
disposition = FrameDisposition.DeliverResponseToProxy;
return(ClassifyState.ClassifiedValidFrame);
case PayloadType.Event:
disposition = FrameDisposition.DeliverEventToService;
return(ClassifyState.ClassifiedValidFrame);
default:
return(ClassifyState.InternalStateError);
}
}
internal static ClassifyState TransitionExpectConfig(
ClassifyState state,
Frame frame,
ref ProtocolErrorCode?errorCode,
ref FrameDisposition disposition,
Logger logger)
{
Debug.Assert(state == ClassifyState.ExpectConfig);
Debug.Assert(frame != null);
if (frame.Count == 0 || frame.Framelets[0].Type != FrameletType.EpoxyConfig)
{
return(ClassifyState.InternalStateError);
}
if (frame.Count != 1)
{
logger.Site().Error("Config frame had trailing framelets.");
errorCode = ProtocolErrorCode.MALFORMED_DATA;
return(ClassifyState.MalformedFrame);
}
var framelet = frame.Framelets[0];
var inputBuffer = new InputBuffer(framelet.Contents);
var fastBinaryReader = new FastBinaryReader <InputBuffer>(inputBuffer, 1);
// We don't currently do anything with the config aside from try to deserialize it.
EpoxyConfig config;
switch (configDeserializer.TryDeserialize(fastBinaryReader, out config))
{
case Deserialize.Result.Success:
break;
default:
logger.Site().Error("Didn't get a valid {0}.", nameof(EpoxyConfig));
errorCode = ProtocolErrorCode.MALFORMED_DATA;
return(ClassifyState.MalformedFrame);
}
disposition = FrameDisposition.ProcessConfig;
return(ClassifyState.ClassifiedValidFrame);
}
internal static ClassifyState TransitionExpectProtocolError(
ClassifyState state, Frame frame, ref ProtocolError error, ref FrameDisposition disposition, Logger logger)
{
if (state != ClassifyState.ExpectProtocolError || frame == null || frame.Count == 0
|| frame.Framelets[0].Type != FrameletType.ProtocolError)
{
return ClassifyState.InternalStateError;
}
if (frame.Count > 1)
{
logger.Site().Error("Protocol error frame had trailing framelets.");
return ClassifyState.ErrorInErrorFrame;
}
var framelet = frame.Framelets[0];
var inputBuffer = new InputBuffer(framelet.Contents);
var fastBinaryReader = new FastBinaryReader<InputBuffer>(inputBuffer, version: 1);
switch (errorDeserializer.TryDeserialize(fastBinaryReader, out error))
{
case Deserialize.Result.Success:
break;
default:
logger.Site().Error("Didn't get a valid {0}.", nameof(ProtocolError));
return ClassifyState.ErrorInErrorFrame;
}
logger.Site().Debug("Deserialized {0} with code {1}.", nameof(ProtocolError), error.error_code);
disposition = FrameDisposition.HandleProtocolError;
return ClassifyState.ClassifiedValidFrame;
}
internal static ClassifyState TransitionExpectConfig(
ClassifyState state, Frame frame, ref ProtocolErrorCode? errorCode, ref FrameDisposition disposition,
Logger logger)
{
Debug.Assert(state == ClassifyState.ExpectConfig);
Debug.Assert(frame != null);
if (frame.Count == 0 || frame.Framelets[0].Type != FrameletType.EpoxyConfig)
{
return ClassifyState.InternalStateError;
}
if (frame.Count != 1)
{
logger.Site().Error("Config frame had trailing framelets.");
errorCode = ProtocolErrorCode.MALFORMED_DATA;
return ClassifyState.MalformedFrame;
}
var framelet = frame.Framelets[0];
var inputBuffer = new InputBuffer(framelet.Contents);
var fastBinaryReader = new FastBinaryReader<InputBuffer>(inputBuffer, version: 1);
// We don't currently do anything with the config aside from try to deserialize it.
EpoxyConfig config;
switch (configDeserializer.TryDeserialize(fastBinaryReader, out config))
{
case Deserialize.Result.Success:
break;
default:
logger.Site().Error("Didn't get a valid {0}.", nameof(EpoxyConfig));
errorCode = ProtocolErrorCode.MALFORMED_DATA;
return ClassifyState.MalformedFrame;
}
disposition = FrameDisposition.ProcessConfig;
return ClassifyState.ClassifiedValidFrame;
}
internal static ClassifyState TransitionValidFrame(
ClassifyState state, EpoxyHeaders headers, ref FrameDisposition disposition)
{
if (state != ClassifyState.ValidFrame || headers == null)
{
return ClassifyState.InternalStateError;
}
switch (headers.message_type)
{
case EpoxyMessageType.REQUEST:
disposition = FrameDisposition.DeliverRequestToService;
return ClassifyState.ClassifiedValidFrame;
case EpoxyMessageType.RESPONSE:
disposition = FrameDisposition.DeliverResponseToProxy;
return ClassifyState.ClassifiedValidFrame;
case EpoxyMessageType.EVENT:
disposition = FrameDisposition.DeliverEventToService;
return ClassifyState.ClassifiedValidFrame;
default:
return ClassifyState.InternalStateError;
}
}
