/BlogEngine/BlogEngine.NET/widgets/Visitor info/apmlchecker.ashx

<%@ WebHandler Language="C#" Class="apmlchecker" %>



using System;

using System.Web;

using System.Collections.Generic;

using System.Xml;

using BlogEngine.Core;



public class apmlchecker : IHttpHandler

{



  public void ProcessRequest(HttpContext context)

  {

    context.Response.ContentType = "text/plain";

    string website = context.Request.QueryString["url"];



    Uri apml = RetrieveApmlUrl(context, website);

    if (apml != null)

    {

      context.Response.Write(apml);

    }



    BlogEngine.Core.Web.HttpModules.CompressionModule.CompressResponse(context);

    context.Response.Cache.SetExpires(DateTime.Now.AddDays(1));

    context.Response.Cache.VaryByParams["url"] = true;

    context.Response.Cache.SetValidUntilExpires(true);

    context.Response.Cache.SetMaxAge(new TimeSpan(0, 10, 0));

  }



  private static Uri RetrieveApmlUrl(HttpContext context, string website)

  {

    Uri url;

    if (Uri.TryCreate(website, UriKind.Absolute, out url))

    {

      Dictionary<Uri, XmlDocument> docs = Utils.FindSemanticDocuments(url, "apml");

      if (docs.Count > 0)

      {

        foreach (Uri key in docs.Keys)

        {

          return key;

        }

      }

    }



    return null;

  }



  public bool IsReusable

  {

    get

    {

      return false;

    }

  }



}