mcs/class/corlib/System.Security.Permissions/StrongNamePermissionAttribute.cs

   1 //
   2 // System.Security.Permissions.StrongNameIdentityPermissionAttribute.cs
   3 //
   4 // Authors:
   5 //      Duncan Mak <duncan@ximian.com>
   6 //      Sebastien Pouliot  <sebastien@ximian.com>
   7 //
   8 // (C) 2002 Ximian, Inc.                        http://www.ximian.com
   9 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System.Globalization;
  32
  33 namespace System.Security.Permissions {
  34
  35         [AttributeUsage (AttributeTargets.Assembly | AttributeTargets.Class |
  36                          AttributeTargets.Struct | AttributeTargets.Constructor |
  37                          AttributeTargets.Method, AllowMultiple=true, Inherited=false)]
  38         [Serializable]
  39         public sealed class StrongNameIdentityPermissionAttribute : CodeAccessSecurityAttribute {
  40
  41                 // Fields
  42                 private string name;
  43                 private string key;
  44                 private string version;
  45
  46                 // Constructor
  47                 public StrongNameIdentityPermissionAttribute (SecurityAction action)
  48                         : base (action)
  49                 {
  50                 }
  51
  52                 // Properties
  53                 public string Name {
  54                         get { return name; }
  55                         set { name = value; }
  56                 }
  57
  58                 public string PublicKey {
  59                         get { return key; }
  60                         set { key = value; }
  61                 }
  62
  63                 public string Version {
  64                         get { return version; }
  65                         set { version = value; }
  66                 }
  67
  68                 // Methods
  69                 public override IPermission CreatePermission ()
  70                 {
  71                         if (this.Unrestricted)
  72                                 return new StrongNameIdentityPermission (PermissionState.Unrestricted);
  73
  74                         if ((name == null) && (key == null) && (version == null))
  75                                 return new StrongNameIdentityPermission (PermissionState.None);
  76
  77                         if (key == null) {
  78                                 throw new ArgumentException (Locale.GetText (
  79                                         "PublicKey is required"));
  80                         }
  81                         StrongNamePublicKeyBlob blob = StrongNamePublicKeyBlob.FromString (key);
  82
  83                         Version v = null;
  84                         if (version != null)
  85                                 v = new Version (version);
  86
  87                         return new StrongNameIdentityPermission (blob, name, v);
  88                 }
  89         }
  90 }