Pipeline processor with URL

gistfile1.txt

public class ProcessorWithUrlBase
{
	public string Url { get; set; }

	protected bool IsAllowedRequest(HttpRequestArgs args)
	{
		return string.IsNullOrWhiteSpace(this.Url) || args.Context.Request.RawUrl.StartsWith(this.Url, StringComparison.OrdinalIgnoreCase);
	}
}

public class VideoXml : ProcessorWithUrlBase
{
	public void Process(HttpRequestArgs args)
	{
		if (!this.IsAllowedRequest(args))
		{
			return;
		}
		
		// Do your video.xml thang!
	}
}
	
<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/" xmlns:set="http://www.sitecore.net/xmlconfig/set/">
  <sitecore>
	<pipelines>
      <httpRequestBegin>
        <processor type="MyProject.Pipelines.HttpRequestBegin.VideoXml, MyProject"
                   patch:before="processor[@type='Sitecore.Pipelines.HttpRequest.ItemResolver, Sitecore.Kernel']">
          <url>/video.xml</url>
        </processor>
	</pipelines>
  </sitecore>
</configuration>