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Hishaam Namooya
Hishaam Namooya
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NowBasically, what you need to do is to see first if the request url contains elements which should be neglected. Then, you need to see if the Context.Item is null. If it is null, therefore it should redirect to the Error 404. So, the code will belook something as below:

You will be able to add presentation to show some content to the Error 404 item.

Note: It is recommended to add caching so that it will not each time go and fetch the item in the Sitecore database. For more information, you may check the following link

Now, the code will be as below:

Basically, what you need to do is to see first if the request url contains elements which should be neglected. Then, you need to see if the Context.Item is null. If it is null, therefore it should redirect to the Error 404. So, the code will look something as below:

You will be able to add presentation to show some content to the Error 404 item.

Note: It is recommended to add caching so that it will not each time go and fetch the item in the Sitecore database. For more information, you may check the following link

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Hishaam Namooya
Hishaam Namooya
  • 9.7k
  • 1
  • 19
  • 37

You will need to have a custom processor in the <httpRequestBegin> which see if the item in the url is valid or not.

So, the patch will be as follows:

<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/">
  <sitecore>    
    <pipelines>
      <httpRequestBegin>
        <processor type="YourNamespaceHere, YourAssemblyHere"
                 patch:after="processor[@type='Sitecore.Pipelines.HttpRequest.ItemResolver, Sitecore.Kernel']"/>
      </httpRequestBegin>      
    </pipelines>
  </sitecore>
</configuration>

Now, the code will be as below:

public class NotFoundProcessor : HttpRequestProcessor
{
    #region Fields

    private static readonly List<string> UrlsToIgnoreByCustomProcessors = new List<string> { "/sitecore/", "/sitecore", "/layouts", "/layouts/", "/error500.aspx" };

    #endregion

    public override void Process(HttpRequestArgs args)
    {
        if (UrlsToIgnoreByCustomProcessors.Any())
        {
            foreach (var urlsToIgnore in UrlsToIgnoreByCustomProcessors)
            {
                if (HttpContext.Current.Request.Url.PathAndQuery.ToLower().Contains(urlsToIgnore))
                {
                    return;
                }
            }
        }
        
        //Check if Context Item is null
        if(Sitecore.Context.Item != null)
        {
            return;
        }
        
        //Get Path of Error 404 item from Site Definition
        var error404ItemPath = Sitecore.Context.Site.Properties["notFoundPageItemPath"];
        
        var database = GetDatabase();
        
        //Get Error 404 item from Sitecore
        var error404Item = database.GetItem(error404ItemPath);
        
        //Generate url for Error 404 item
        var itemUrl = LinkManager.GetItemUrl(error404Item).Replace(context.DomainName, string.Empty);
        
        //Perform Redirection
        HttpContext.Current.Server.TransferRequest(string.Format("~/{0}?status=404", itemUrl.TrimStart('/')));   
        HttpContext.Current.ApplicationInstance.CompleteRequest();
        
        return;
    }
    
    protected virtual Database GetDatabase()
    {
        return Context.ContentDatabase ?? Context.Database;
    }
}