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 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;
}
public ItemBuilder(CompressedKey key, string physicalPath)
{
Key = key;
PhysicalPath = physicalPath;
Stream = new FileStream(PhysicalPath, FileMode.Create, FileAccess.Write, FileShare.None);
}
private void AddHandleInDictionary(CompressedKey key, ItemHandle handle)
{
lock (_itemsLock)
{
ItemHandle addingHandle = handle.Clone();
ItemHandle existingHandle;
if (_items.TryGetValue(key, out existingHandle))
{
existingHandle.Dispose();
}
_items[key] = addingHandle;
}
}
public ICompressedItemBuilder Create(CompressedKey key)
{
// TODO: break down into buckets to avoid files-per-folder limits
string physicalPath = Path.Combine(_storagePath, Guid.NewGuid().ToString("n"));
return new ItemBuilder(key, physicalPath);
}
public ICompressedItemHandle Open(CompressedKey key)
{
lock (_itemsLock)
{
ItemHandle handle;
if (_items.TryGetValue(key, out handle))
{
return handle.Clone();
}
return null;
}
}
