SharePoint: Elevated Perms Event Receiver

SharePoint.ItemCheckedInEventReceiver.cs

using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using System.Security.Permissions;
using Microsoft.SharePoint;
using Microsoft.SharePoint.Security;
using Microsoft.SharePoint.Utilities;
using Microsoft.SharePoint.Workflow;

namespace SharePoint.Development.EventReceivers
{
    ///
    /// List Item Events
    ///
    public class ItemCheckedInEventReceiver : SPItemEventReceiver
    {
        private string newDocumentUrlExample = "http://newfilelocation/document.doc";

        public override void ItemCheckedIn(SPItemEventProperties properties)
        {
            base.EventFiringEnabled = false; // Disable event receiver firing so that we do not accidentally kick off a different thread
            try
            {
                // Check if user has a certain set of permissions, i.e. can they delete items? if not, then we will have to RunWithElevatedPrevileges
                if (properties.Web.DoesUserHavePermissions(properties.UserLoginName, SPBasePermissions.DeleteListItems))
                {
                    SPFile file = properties.ListItem.File; // Get the file
                    file.MoveTo(newDocumentUrlExample); // Move it to the new location
                }
                else
                {
                    RunWithElevatedPrivileges(properties, newDocumentUrlExample); // User doesn't have required permissions and therefore the code must be executed with Elevated perms.
                }
            }
            catch (Exception exception)
            {
                // Write exception to ULS and Event Logs
            }
            finally
            {
                base.EventFiringEnabled = true;
            }
        }
        public static void RunWithElevatedPrivileges(SPItemEventProperties properties, string newURL)
        {
            try
            {
                SPSecurity.RunWithElevatedPrivileges(delegate ()
                {
                    // Everything executed here will be executed under the AppPool account and will have full permissions.. so becareful!!
                    using (SPSite site = new SPSite(properties.SiteId))
                    {
                        using (SPWeb web = site.OpenWeb(properties.Web.ID))
                        {
                            SPList list = web.Lists[properties.ListId];
                            SPListItem listItem = list.Items.GetItemById(properties.ListItemId);
                            SPFile file = listItem.File;
                            file.MoveTo(newURL);
                        }
                    }
                });
            }
            catch (Exception exception)
            {
                // Write exception to ULS and Event Logs
            }
        }
    }
}