Sitefinity – Add auto generated product detailed page URLs to Sitemap XML by hooking to ISitemapGeneratorBeforeWriting

Global.asax

protected void Application_Start(object sender, EventArgs e)
        {
            Telerik.Sitefinity.Abstractions.Bootstrapper.Initialized += new EventHandler<Telerik.Sitefinity.Data.ExecutedEventArgs>(this.Bootstrapper_Initialized);
        }
        
        private void Bootstrapper_Initialized(object sender, Telerik.Sitefinity.Data.ExecutedEventArgs e)
        {
            if (e.CommandName == "Bootstrapped")
            {
                EventHub.Subscribe<ISitemapGeneratorBeforeWriting>(Before_Writing);
            }
        }
        private void Before_Writing(ISitemapGeneratorBeforeWriting evt)
        {
            try
            {
                // sets the collection of entries to modified collection
                evt.Entries = GenerateProductNodes(evt);
            }
            catch (Exception ex)
            {
                Elmah.ErrorLog.GetDefault(null).Log(new Elmah.Error(ex));
            }
        }
        
        public static IEnumerable<SitemapEntry> GenerateProductNodes(ISitemapGeneratorBeforeWriting evt)
        {
            // gets the entries that are about to be written in the sitemap
            var entries = evt.Entries.ToList();

            var siteId = evt.SiteId;

            ISite currentSiteContext = new MultisiteContext().GetSiteById(siteId);
            string scheme = currentSiteContext.RequiresSsl ? "https" : "http";
            string sSiteUrl = string.Format("{0}://{1}", scheme, currentSiteContext.LiveUrl);

            var catalogProvider = currentSiteContext.GetDefaultProvider("Catalog");
            string catalogProviderName = (catalogProvider != null) ? catalogProvider.ProviderName : CatalogManager.GetDefaultProviderName();

            var catalogManager = CatalogManager.GetManager(catalogProviderName);
            var products = catalogManager.GetProducts()
                .Where(p => p.Status == ContentLifecycleStatus.Live).ToList();

            CultureInfo defaultCulture = new CultureInfo(currentSiteContext.DefaultCulture);

            var siteCultures = currentSiteContext.PublicContentCultures;

            var clService = SystemManager.GetContentLocationService();
            IContentItemLocation location;

            foreach (var product in products)
            {
                if (product.AvailableCultures.Length <= 0) continue;

                SitemapEntry productEntry = new SitemapEntry();
                bool bAvailableInDefault = product.AvailableCultures.Contains(defaultCulture);

                CultureInfo defaultEntryCulture = bAvailableInDefault ? defaultCulture : product.AvailableCultures[0];

                location = clService.GetItemDefaultLocation(product, defaultEntryCulture);
                productEntry.Location = string.Format("{0}{1}", sSiteUrl, new Uri(location.ItemAbsoluteUrl).PathAndQuery);
                productEntry.Priority = 1;
                productEntry.LastModified = product.LastModified;

                string type = product.GetType().Name;

                Dictionary<string, string> altLink = new Dictionary<string, string>();

                foreach (var culture in product.AvailableCultures)
                {
                    if (string.IsNullOrEmpty(culture.Name))
                        continue;

                    //gets the item default location of a given item by itemId provided
                    location = clService.GetItemDefaultLocation(typeof(Product), catalogProviderName, product.Id, culture);

                    //gets the absolute url for the location
                    if (location != null)
                        altLink.Add(culture.Name, string.Format("{0}{1}", sSiteUrl, new Uri(location.ItemAbsoluteUrl).PathAndQuery));
                }
                productEntry.Rels = altLink;
                entries.Add(productEntry);
            }

            return entries;
        }