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The Labs \ Source Viewer \ SSCLI \ System.Security.Principal \ GenericPrincipal

SSCLI
  1. // ==++==
  2. //
  3. //
  4. // Copyright (c) 2006 Microsoft Corporation. All rights reserved.
  5. //
  6. // The use and distribution terms for this software are contained in the file
  7. // named license.txt, which can be found in the root of this distribution.
  8. // By using this software in any fashion, you are agreeing to be bound by the
  9. // terms of this license.
  10. //
  11. // You must not remove this notice, or any other, from this software.
  12. //
  13. //
  14. // ==--==
  16. //
  17. // GenericPrincipal.cs
  18. //
  20. namespace System.Security.Principal
  21. {
  22.     using System.Runtime.Remoting;
  23.     using System;
  24.     using System.Security.Util;
  25.     using System.Globalization;
  26.    
  27.     [Serializable()]
  28.     [System.Runtime.InteropServices.ComVisible(true)]
  29.     public class GenericPrincipal : IPrincipal
  30.     {
  31.         private IIdentity m_identity;
  32.         private string[] m_roles;
  33.        
  34.         public GenericPrincipal(IIdentity identity, string[] roles)
  35.         {
  36.             if (identity == null)
  37.                 throw new ArgumentNullException("identity");
  38.            
  39.             m_identity = identity;
  40.             if (roles != null) {
  41.                 m_roles = new string[roles.Length];
  42.                 for (int i = 0; i < roles.Length; ++i) {
  43.                     m_roles[i] = roles[i];
  44.                 }
  45.             }
  46.             else {
  47.                 m_roles = null;
  48.             }
  49.         }
  50.        
  51.         public virtual IIdentity Identity {
  52.             get { return m_identity; }
  53.         }
  54.        
  55.         public virtual bool IsInRole(string role)
  56.         {
  57.             if (role == null || m_roles == null)
  58.                 return false;
  59.            
  60.             for (int i = 0; i < m_roles.Length; ++i) {
  61.                 if (m_roles[i] != null && String.Compare(m_roles[i], role, StringComparison.OrdinalIgnoreCase) == 0)
  62.                     return true;
  63.             }
  64.             return false;
  65.         }
  66.     }
  67. }

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