public Task Complete()
{
InterceptMode interceptMode = Intercept();
Detach();
switch (interceptMode)
{
case InterceptMode.DoingNothing:
return(TaskHelpers.Completed());
case InterceptMode.CompressingToStorage:
_compressingStream.Close();
_compressedItem = _storage.Commit(_compressedItemBuilder);
_response.ContentLength = _compressedItem.CompressedLength;
_response.ETag = _compressedETag;
_response.Headers.Set("Content-Encoding", _encoding.Name);
if (_compressedItem.PhysicalPath != null && _originalSendFileAsyncDelegate != null)
{
return(_originalSendFileAsyncDelegate.Invoke(_compressedItem.PhysicalPath, 0, _compressedItem.CompressedLength, _request.CallCancelled));
}
else
{
// TODO: stream copy operation
}
return(TaskHelpers.Completed());
case InterceptMode.SentFromStorage:
_response.ETag = _compressedETag;
_response.Headers.Set("Content-Encoding", _encoding.Name);
if (_compressedItem != null)
{
_response.ContentLength = _compressedItem.CompressedLength;
if (_compressedItem.PhysicalPath != null && _originalSendFileAsyncDelegate != null)
{
return(_originalSendFileAsyncDelegate.Invoke(_compressedItem.PhysicalPath, 0, _compressedItem.CompressedLength, _request.CallCancelled));
}
else
{
// TODO: stream copy operation
}
}
return(TaskHelpers.Completed());
}
throw new NotImplementedException();
}
public InterceptMode InterceptOnce()
{
string etag = _response.ETag;
if (string.IsNullOrEmpty(etag))
{
return(InterceptMode.DoingNothing);
}
if (etag.StartsWith("\"", StringComparison.Ordinal) &&
etag.EndsWith("\"", StringComparison.Ordinal))
{
_compressedETag = etag.Substring(0, etag.Length - 1) + "^" + _encoding.Name + "\"";
}
else
{
_compressedETag = "\"" + etag + "^" + _encoding.Name + "\"";
}
HttpStatusCode statusCode = (HttpStatusCode)_response.StatusCode;
if (statusCode == HttpStatusCode.NotModified)
{
return(InterceptMode.SentFromStorage);
}
var key = new CompressedKey
{
ETag = _compressedETag,
RequestPath = _request.Path.Value,
RequestQueryString = _request.QueryString.Value,
RequestMethod = _request.Method,
};
_compressedItem = _storage.Open(key);
if (_compressedItem != null)
{
return(InterceptMode.SentFromStorage);
}
_compressedItemBuilder = _storage.Create(key);
_compressingStream = _encoding.CompressTo(_compressedItemBuilder.Stream);
return(InterceptMode.CompressingToStorage);
}
public Task Complete()
{
InterceptMode interceptMode = Intercept();
Detach();
switch (interceptMode)
{
case InterceptMode.DoingNothing:
return TaskHelpers.Completed();
case InterceptMode.CompressingToStorage:
_compressingStream.Close();
_compressedItem = _storage.Commit(_compressedItemBuilder);
_response.SetHeader("Content-Length", _compressedItem.CompressedLength.ToString(CultureInfo.InvariantCulture));
_response.SetHeader("ETag", _compressedETag);
_response.SetHeader("Content-Encoding", _encoding.Name);
if (_compressedItem.PhysicalPath != null && _originalSendFileAsyncDelegate != null)
{
return _originalSendFileAsyncDelegate.Invoke(_compressedItem.PhysicalPath, 0, _compressedItem.CompressedLength, _request.CallCancelled);
}
else
{
// TODO: stream copy operation
}
return TaskHelpers.Completed();
case InterceptMode.SentFromStorage:
_response.SetHeader("ETag", _compressedETag);
_response.SetHeader("Content-Encoding", _encoding.Name);
if (_compressedItem != null)
{
_response.SetHeader("Content-Length", _compressedItem.CompressedLength.ToString(CultureInfo.InvariantCulture));
if (_compressedItem.PhysicalPath != null && _originalSendFileAsyncDelegate != null)
{
return _originalSendFileAsyncDelegate.Invoke(_compressedItem.PhysicalPath, 0, _compressedItem.CompressedLength, _request.CallCancelled);
}
else
{
// TODO: stream copy operation
}
}
return TaskHelpers.Completed();
}
throw new NotImplementedException();
}
public InterceptMode InterceptOnce()
{
StringSegment etag = SingleSegment(_response, "ETag");
if (!etag.HasValue)
{
return InterceptMode.DoingNothing;
}
if (etag.StartsWith("\"", StringComparison.Ordinal) &&
etag.EndsWith("\"", StringComparison.Ordinal))
{
_compressedETag = etag.Substring(0, etag.Count - 1) + "^" + _encoding.Name + "\"";
}
else
{
_compressedETag = "\"" + etag.Value + "^" + _encoding.Name + "\"";
}
HttpStatusCode statusCode = (HttpStatusCode)_response.StatusCode;
if (statusCode == HttpStatusCode.NotModified)
{
return InterceptMode.SentFromStorage;
}
var key = new CompressedKey
{
ETag = _compressedETag,
RequestPath = _request.Path,
RequestQueryString = _request.QueryString,
RequestMethod = _request.Method,
};
_compressedItem = _storage.Open(key);
if (_compressedItem != null)
{
return InterceptMode.SentFromStorage;
}
_compressedItemBuilder = _storage.Create(key);
_compressingStream = _encoding.CompressTo(_compressedItemBuilder.Stream);
return InterceptMode.CompressingToStorage;
}
