1using System.Security.Principal;
2using System.ServiceModel;
3using System.Web;
4
5namespace Enterprise.Security
6{
7    /// <!-- 
8    ///     Code Courtesy Of http://www.purecoding.net
9    ///     Permissions : Free for general use
10    ///     Keywords: Security, Identity, WCF, c#, .Net, Windows, Aspnet. 
11    ///     Filename: IdentityManager.cs
12    /// -->
13    /// <summary>
14    /// Gets the context of the calling user.  
15    /// Works with WCF Services, Xml WebServices and ASPNet
16    /// </summary>
17    public static class IdentityManager
18    {
19        public static IIdentity CurrentUser()
20        {
21            if (HttpContext.Current == null && ServiceSecurityContext.Current != null)
22            {
23                return ServiceSecurityContext.Current.PrimaryIdentity;
24            }
25            else if (HttpContext.Current != null)
26            {
27                return HttpContext.Current.User.Identity;
28            }
29            else
30            {
31                return System.Security.Principal.WindowsIdentity.GetCurrent();
32            }
33        }
34    }
35}
36