protected override async Task <HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
if (BypassPrivateCache(request))
{
var response = await base.SendAsync(request, cancellationToken);
response = await ProcessResponseCaching(response);
return(response);
}
var requestUrl = request.RequestUri.AbsoluteUri;
if (_cache.IsExpired(requestUrl))
{
var eTag = _cache.GetETag(requestUrl);
if (eTag != null)
{
request.Headers.IfNoneMatch.TryParseAdd(eTag);
}
var response = await base.SendAsync(request, cancellationToken);
response = await ProcessResponseCaching(response);
if (response.StatusCode == HttpStatusCode.NotModified)
{
response.StatusCode = HttpStatusCode.OK;
}
return(response);
}
var cachedResponse = _cache.Get(requestUrl);
var bytes = Convert.FromBase64String(cachedResponse);
var httpResponse = new HttpResponseMessage(HttpStatusCode.OK)
{
//Content = new StringContent(cachedResponse)
Content = new StreamContent(new MemoryStream(bytes))
};
return(httpResponse);
}
