class/System/System.Net.Mail/SmtpPermissionAttribute.cs

   1 //
   2 // System.Net.Mail.SmtpPermissionAttribute
   3 //
   4 // Authors:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (C) 2006 Novell, Inc (http://www.novell.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 #if NET_2_0
  30
  31 using System.Security;
  32 using System.Security.Permissions;
  33
  34 namespace System.Net.Mail {
  35
  36         [AttributeUsage (AttributeTargets.Assembly | AttributeTargets.Class | AttributeTargets.Struct
  37                 | AttributeTargets.Constructor | AttributeTargets.Method, AllowMultiple = true, Inherited = false)]
  38         [Serializable]
  39         public sealed class SmtpPermissionAttribute : CodeAccessSecurityAttribute {
  40
  41                 private string access;
  42
  43
  44                 public SmtpPermissionAttribute (SecurityAction action)
  45                         : base (action)
  46                 {
  47                 }
  48
  49
  50                 public string Access {
  51                         get { return access; }
  52                         set { access = value; }
  53                 }
  54
  55
  56                 private SmtpAccess GetSmtpAccess ()
  57                 {
  58                         if (access == null)
  59                                 return SmtpAccess.None;
  60
  61                         switch (access.ToLowerInvariant ()) {
  62                         case "connecttounrestrictedport":
  63                                 return SmtpAccess.ConnectToUnrestrictedPort;
  64                         case "connect":
  65                                 return SmtpAccess.Connect;
  66                         case "none":
  67                                 return SmtpAccess.None;
  68                         default:
  69                                 string s = Locale.GetText ("Invalid Access='{0}' value.", access);
  70                                 throw new ArgumentException ("Access", s);
  71                         }
  72                 }
  73
  74                 public override IPermission CreatePermission ()
  75                 {
  76                         if (Unrestricted)
  77                                 return new SmtpPermission (true);
  78
  79                         return new SmtpPermission (GetSmtpAccess ());
  80                 }
  81         }
  82 }
  83
  84 #endif