Hi,

We're working on a 4.11.5 site. We want to capture any unhandled errors and log them, which I don't believe umbraco implements by default.

We have tried creating a Module and registering it in the web.config, as below, however it never seems to be called.

    using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using log4net;

 

/// <summary>

/// Summary description for UnhandledExceptionHandler

/// </summary>

public class UnhandledExceptionHandler : IHttpModule

{

    private static readonly ILog _logger = LogManager.GetLogger(typeof(UnhandledExceptionHandler));

 

    #region IHttpModule Members

 

    public void Dispose()

    {

        //clean-up code here.

    }

 

    public void Init(HttpApplication context)

    {

        context.Error +=new EventHandler(context_Error);

    }

 

    #endregion

 

    #region Event Handlers

 

    void context_Error(object sender, EventArgs e)

    {

        HttpContext httpContext = HttpContext.Current;

        Exception exception;

        for (exception = httpContext.Server.GetLastError(); exception.InnerException != null; exception = exception.InnerException)

        {

        }

        if (exception is HttpException && ((HttpException)exception).GetHttpCode() == 404)

        {

            _logger.Warn("A 404 occured", exception);

        }

        else

        {

            _logger.Error("Error module caught an unhandled exception", exception);

        }

    }

 

    #endregion

}

So we switched paths and tried registering an event in an umbraco startup module, which again doesnt ever seem to be executed.

using System;

using System.Web;

using log4net;

using Umbraco.Core;

using Umbraco.Web;

using umbraco.BusinessLogic;

using umbraco.cms.businesslogic;

using umbraco.cms.businesslogic.web;

 

/// <summary>

/// Summary description for Events

/// </summary>

public class Events : IApplicationEventHandler

{

    private static readonly ILog _logger = LogManager.GetLogger(typeof(UnhandledExceptionHandler));

 

    public void OnApplicationInitialized(UmbracoApplication httpApplication, ApplicationContext applicationContext)

    {

        httpApplication.Error += new System.EventHandler(httpApplication_Error);

    }

 

    void httpApplication_Error(object sender, System.EventArgs e)

    {

        HttpContext httpContext = HttpContext.Current;

        Exception exception;

        for (exception = httpContext.Server.GetLastError(); exception.InnerException != null; exception = exception.InnerException)

        {

        }

        if (exception is HttpException && ((HttpException)exception).GetHttpCode() == 404)

        {

            _logger.Warn("A 404 occured", exception);

        }

        else

        {

            _logger.Error("Error module caught an unhandled exception", exception);

        }

    }

 

 

    public void OnApplicationStarted(UmbracoApplication httpApplication, ApplicationContext applicationContext)

    {

 

    }

 

    public void OnApplicationStarting(UmbracoApplication httpApplication, ApplicationContext applicationContext)

    {

 

    }

}

On top of that, a lot of our code is in Razor, so how do we actually log an error from a Razor view?

Any help would be greatly appreciated.

Thanks

Al