public static void Apply(this HttpCacheOptions options, HttpResponseMessage response)
{
if (response == null)
{
return;
}
response.Headers.CacheControl = new CacheControlHeaderValue();
if (options.IsPublic || options.MaxAge.HasValue)
{
response.Headers.CacheControl.Public = true;
}
if (options.MaxAge.HasValue)
{
response.Headers.CacheControl.MaxAge = response.Headers.Age = options.MaxAge;
}
if (response.Content != null)
{
if (options.LastModified.HasValue && response.Content != null)
{
response.Content.Headers.LastModified = options.LastModified.Value;
}
response.Content.Headers.Expires = Expires(response.Headers);
}
if (!string.IsNullOrEmpty(options.ETag))
{
response.Headers.ETag = new EntityTagHeaderValue(options.QuotedETag);
}
}
public static bool ETagMatches(this HttpCacheOptions options, HttpRequestMessage request)
{
if (request == null)
{
return(false);
}
return(request.Headers.IfNoneMatch.Any(x => x.Tag == options.QuotedETag));
}
public static bool ETagMatches(this HttpCacheOptions options, HttpRequestBase request)
{
if (request == null)
{
return(false);
}
const string key = "if-None-Match";
return(ETagMatches(options, request.Headers[key]));
}
public static void Apply(this HttpCacheOptions options, HttpCachePolicyBase policy)
{
if (policy == null)
{
return;
}
policy.SetCacheability(options.IsPublic ? HttpCacheability.Public : HttpCacheability.Private);
if (options.LastModified.HasValue)
{
policy.SetLastModified(options.LastModified.Value);
}
if (!string.IsNullOrEmpty(options.ETag))
{
policy.SetETag(options.QuotedETag);
}
if (options.MaxAge.HasValue)
{
policy.SetMaxAge(options.MaxAge.Value);
}
}
public static bool ETagMatches(this HttpCacheOptions options, string value)
{
return(options.QuotedETag == value);
}