public object GetModule(string name)
{
var module = ViewModuleProvider.ResolveViewModule(name);
if (module == null)
{
return(NotFound());
}
var eTagHeaderValue = new EntityTagHeaderValue("\"" + module.ETag + "\"");
if (Request.Headers.IfNoneMatch.Contains(eTagHeaderValue))
{
return(new HttpResponseMessage(HttpStatusCode.NotModified));
}
var lastModifiedTime = (DateTimeOffset?)module.LastModifiedTime;
if (Request.Headers.IfModifiedSince >= lastModifiedTime)
{
return(new HttpResponseMessage(HttpStatusCode.NotModified));
}
var response = new HttpResponseMessage(HttpStatusCode.OK);
response.Headers.ETag = eTagHeaderValue;
response.Headers.CacheControl = new CacheControlHeaderValue()
{
Public = true
};
response.Content = new PushStreamContent((s, c, t) => { module.Write(s); s.Close(); });
response.Content.Headers.ContentType = new MediaTypeHeaderValue(module.ContentType);
response.Content.Headers.LastModified = lastModifiedTime;
return(response);
}
public void ProcessRequest(HttpContext context)
{
// allow browser to cache response
context.Response.Cache.SetCacheability(HttpCacheability.Public);
context.Response.Cache.SetMaxAge(new TimeSpan(1, 0, 0));
context.Response.StatusCode = (int)HttpStatusCode.NotFound;
// look up module by name
var file = ViewModuleProvider.ResolveViewModule(context.Request.QueryString["m"]);
if (file != null)
{
var ifNoneMatch = context.Request.Headers["If-None-Match"];
if (ifNoneMatch != null)
{
var p = ifNoneMatch.IndexOf(",", StringComparison.Ordinal);
if (p > -1)
{
ifNoneMatch = ifNoneMatch.Substring(0, p);
}
if (file.ETag == ifNoneMatch)
{
context.Response.ClearContent();
context.Response.StatusCode = (int)HttpStatusCode.NotModified;
context.Response.SuppressContent = true;
return;
}
}
var ifModifiedSince = context.Request.Headers["If-Modified-Since"];
if (ifModifiedSince != null)
{
DateTime d;
if (DateTime.TryParse(ifModifiedSince, out d) && file.LastModifiedTime <= d)
{
context.Response.ClearContent();
context.Response.StatusCode = (int)HttpStatusCode.NotModified;
context.Response.SuppressContent = true;
return;
}
}
context.Response.StatusCode = (int)HttpStatusCode.OK;
context.Response.ContentType = file.ContentType;
context.Response.Cache.SetLastModified(file.LastModifiedTime);
context.Response.Cache.SetETag(file.ETag);
file.Write(context.Response.OutputStream);
}
}
