public static string GetState(this RoutedContentBase post, bool isDraft)
{
if (post.Created == DateTime.MinValue)
{
return(ContentState.New);
}
if (post.Published.HasValue)
{
return(isDraft ? ContentState.Draft : ContentState.Published);
}
return(ContentState.Unpublished);
}
/// <summary>
/// Handles HTTP Caching Headers and checks if the client has the
/// latest version in cache.
/// </summary>
/// <param name="context">The HTTP Cache</param>
/// <param name="site">The current site</param>
/// <param name="content">The current content</param>
/// <param name="expires">How many minutes the cache should be valid</param>
/// <returns>If the client has the latest version</returns>
public bool HandleCache(HttpContext context, Site site, RoutedContentBase content, int expires)
{
var headers = context.Response.GetTypedHeaders();
if (expires > 0 && content.Published.HasValue)
{
_logger?.LogDebug($"Setting HTTP Cache for [{ content.Slug }]");
var lastModified = !site.ContentLastModified.HasValue || content.LastModified > site.ContentLastModified
? content.LastModified : site.ContentLastModified.Value;
var etag = Utils.GenerateETag(content.Id.ToString(), lastModified);
headers.CacheControl = new CacheControlHeaderValue
{
Public = true,
MaxAge = TimeSpan.FromMinutes(expires),
};
headers.ETag = new EntityTagHeaderValue(etag);
headers.LastModified = lastModified;
if (HttpCaching.IsCached(context, etag, lastModified))
{
_logger?.LogInformation("Client has current version. Setting NotModified");
context.Response.StatusCode = 304;
return(true);
}
}
else
{
_logger?.LogDebug($"Setting HTTP NoCache for [{ content.Slug }]");
headers.CacheControl = new CacheControlHeaderValue
{
NoCache = true
};
}
return(false);
}
