namespace <%= fullNamespace %>
{
    using System;
    using System.IO;
    using System.Threading;

    using DotNetNuke.Common.Utilities;
    using DotNetNuke.Entities.Modules;
    using DotNetNuke.Security;
    using DotNetNuke.Services.Authentication;
    using DotNetNuke.Services.Exceptions;
    using DotNetNuke.Services.Localization;

    /// <summary>
    /// The Logoff UserModuleBase is used to log off a registered user.
    /// </summary>
    /// <remarks>
    /// </remarks>
    public partial class Logoff : UserModuleBase
    {
        /// <summary>
        /// Page_Load runs when the control is loaded.
        /// </summary>
        /// <remarks>
        /// </remarks>
        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);
            try
            {
                // Get the Authentication System associated with the current User
                var authSystem = AuthenticationController.GetAuthenticationType();

                if (authSystem != null && !string.IsNullOrEmpty(authSystem.LogoffControlSrc))
                {
                    var authLogoffControl = (AuthenticationLogoffBase)this.LoadControl("~/" + authSystem.LogoffControlSrc);

                    // set the control ID to the resource file name ( ie. controlname.ascx = controlname )
                    // this is necessary for the Localization in PageBase
                    authLogoffControl.AuthenticationType = authSystem.AuthenticationType;
                    authLogoffControl.ID = Path.GetFileNameWithoutExtension(authSystem.LogoffControlSrc) + "_" + authSystem.AuthenticationType;
                    authLogoffControl.LocalResourceFile = authLogoffControl.TemplateSourceDirectory + "/" + Localization.LocalResourceDirectory + "/" +
                                                          Path.GetFileNameWithoutExtension(authSystem.LogoffControlSrc);
                    authLogoffControl.ModuleConfiguration = this.ModuleConfiguration;

                    authLogoffControl.LogOff += this.UserLogOff;
                    authLogoffControl.Redirect += this.UserRedirect;

                    // Add Login Control to Control
                    this.pnlLogoffContainer.Controls.Add(authLogoffControl);
                }
                else
                {
                    // The current auth system has no custom logoff control so LogOff
                    this.DoLogoff();
                    this.Redirect();
                }
            }
            catch (ThreadAbortException)
            {
                // Do nothing Response.redirect
            }
            catch (Exception exc) // Page failed to load
            {
                Exceptions.ProcessPageLoadException(exc);
            }
        }

        protected void UserLogOff(object sender, EventArgs e)
        {
            this.DoLogoff();
        }

        protected void UserRedirect(object sender, EventArgs e)
        {
            this.Redirect();
        }

        private void Redirect()
        {
            // Redirect browser back to portal
            this.Response.Redirect(AuthenticationController.GetLogoffRedirectURL(this.PortalSettings, this.Request), true);
        }

        private void DoLogoff()
        {
            try
            {
                // Remove user from cache
                if (this.User != null)
                {
                    DataCache.ClearUserCache(this.PortalSettings.PortalId, this.Context.User.Identity.Name);
                }

                var objPortalSecurity = PortalSecurity.Instance;
                objPortalSecurity.SignOut();
            }
            catch (Exception exc) // Page failed to load
            {
                Exceptions.ProcessPageLoadException(exc);
            }
        }
    }
}