public void OnGet()
{
_serverTiming.Metrics.Add(new Lib.AspNetCore.ServerTiming.Http.Headers.ServerTimingMetric("ctor", Watch.ElapsedMilliseconds, "from ctor till GET"));
Watch.Restart();
if (Directory.Exists(_imageDirectory))
{
var di = new DirectoryInfo(_imageDirectory);
var files = di.EnumerateFiles("thumbnail*.jpg", SearchOption.TopDirectoryOnly);
ThumbnailJpgs = files.OrderByDescending(f => f.LastWriteTime) /*.Select(x => x.Name)*/;
//files = di.EnumerateFiles("out*.jpg", SearchOption.TopDirectoryOnly);
//FullImageJpgs = files.OrderByDescending(f => f.LastWriteTime)/*.Select(x => x.Name)*/;
FileInfo img = ThumbnailJpgs.FirstOrDefault();
if (img != null)
{
var expire_date = img.LastWriteTime.AddMinutes(10);
Response.Headers[HeaderNames.CacheControl] =
$"public,expires={expire_date.ToUniversalTime().ToString("R")}";
}
}
_serverTiming.Metrics.Add(new Lib.AspNetCore.ServerTiming.Http.Headers.ServerTimingMetric("READY", Watch.ElapsedMilliseconds, "GET ready"));
}
public void OnGet()
{
_serverTiming.Metrics.Add(new Lib.AspNetCore.ServerTiming.Http.Headers.ServerTimingMetric("ctor", Watch.ElapsedMilliseconds, "from ctor till GET"));
Watch.Restart();
if (Directory.Exists(_imageDirectory))
{
var di = new DirectoryInfo(_imageDirectory);
ThumbnailJpgs = di.EnumerateFiles("thumbnail*.jpg", SearchOption.TopDirectoryOnly)
.OrderByDescending(f => f.LastWriteTime);
if (false == User.Identity.IsAuthenticated)
{
FileInfo img = ThumbnailJpgs.FirstOrDefault();
if (img != null)
{
var expire_date = img.LastWriteTime.AddMinutes(10);
TimeSpan max_age = expire_date.Subtract(DateTime.Now);
if (max_age > TimeSpan.Zero)
{
Response.GetTypedHeaders().CacheControl =
new Microsoft.Net.Http.Headers.CacheControlHeaderValue
{
Public = true,
MaxAge = max_age
};
}
//before
// Response.Headers[HeaderNames.CacheControl] =
// $"public,expires={expire_date.ToUniversalTime().ToString("R")}";
}
}
}
_serverTiming.Metrics.Add(new Lib.AspNetCore.ServerTiming.Http.Headers.ServerTimingMetric("READY", Watch.ElapsedMilliseconds, "GET ready"));
}