private HttpHandler SelectHandler(HttpContext context)
{
Uri absolute = context.Request.RequestedUrl;
if (!absolute.IsAbsoluteUri)
{
absolute = new Uri(context.Request.Host, absolute);
}
string fileName = absolute.Segments.Last();
string ext = null;
if (!fileName.Contains("."))
ext = ".html";
else
ext = "." + fileName.Split('.').Last();
HttpHandler handler = null;
foreach (var candidate in Handlers)
{
if (candidate.FileExtensions != null && candidate.FileExtensions.Contains(ext))
{
handler = candidate;
break;
}
// candidate is a default (low level) handler, that is better than nothing.
if (candidate.FileExtensions == null && handler == null)
{
handler = candidate;
}
}
if (handler == null)
{
handler = new HttpHandler();
handler.Host = this;
}
return handler;
}
public async Task HandleRequestAsync(HttpContext context)
{
if (context == null)
throw new ArgumentNullException(nameof(context));
HttpHandler handler = SelectHandler(context);
await handler.HandleRequestAsync(context);
}