<%@ WebHandler Language="C#" Class="SiteMap" %>

using System;
using System.Web;
using System.Xml;

using Atiba.Web;
using Atiba.Web.Portal;

public class SiteMap : IHttpHandler {
    
    public void ProcessRequest (HttpContext context) {
        context.Response.ContentType = "text/xml";

        using (XmlWriter writer = XmlWriter.Create(context.Response.OutputStream)) {
            WriteSiteMap(writer, context);
        }
                
        
    }

    private void WriteSiteMap(XmlWriter writer, HttpContext context) {
        writer.WriteStartElement("urlset", "http://www.google.com/schemas/sitemap/0.84");
        WriteSiteMapNode(SiteProvider.SiteMapProvider.RootNode, writer, context);
        writer.WriteEndElement();
    }

    private void WriteSiteMapNode(SiteMapNode node, XmlWriter writer, HttpContext context) {
        foreach (SiteMapNode childNode in node.ChildNodes) {
            WriteSiteMapNode(childNode, writer, context);
        }
        
        string showInSiteMap = node["showInSiteMap"];
        if(!string.IsNullOrEmpty(showInSiteMap) && showInSiteMap != "1") {
            return;
        }

        writer.WriteStartElement("url");
        writer.WriteElementString("loc", "http://" + context.Request.Url.Host +  node.Url);
        writer.WriteElementString("changefreq", "daily");
        writer.WriteEndElement();
    }
 
    public bool IsReusable {
        get {
            return false;
        }
    }

}