class/corlib/System.Security.Permissions/KeyContainerPermissionAttribute.cs

   1 //
   2 // System.Security.Permissions.KeyContainerPermissionAttribute class
   3 //
   4 // Author
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (C) 2004-2005 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 using System.Globalization;
  30 using System.Runtime.InteropServices;
  31
  32 namespace System.Security.Permissions {
  33
  34         [AttributeUsage (AttributeTargets.Assembly | AttributeTargets.Class |
  35                 AttributeTargets.Struct | AttributeTargets.Constructor | AttributeTargets.Method,
  36                 AllowMultiple = true, Inherited = false)]
  37         [ComVisible (true)]
  38         [Serializable]
  39         public sealed class KeyContainerPermissionAttribute : CodeAccessSecurityAttribute {
  40
  41                 private KeyContainerPermissionFlags _flags;
  42                 private string _containerName;
  43                 private int _spec;
  44                 private string _store;
  45                 private string _providerName;
  46                 private int _type;
  47
  48                 // Constructors
  49
  50                 public KeyContainerPermissionAttribute (SecurityAction action)
  51                         : base (action)
  52                 {
  53                         _spec = -1;
  54                         _type = -1;
  55                 }
  56
  57                 // Properties
  58
  59                 public KeyContainerPermissionFlags Flags {
  60                         get { return _flags; }
  61                         set { _flags = value; }
  62                 }
  63
  64                 public string KeyContainerName {
  65                         get { return _containerName; }
  66                         set { _containerName = value; }
  67                 }
  68
  69                 public int KeySpec {
  70                         get { return _spec; }
  71                         set { _spec = value; }
  72                 }
  73
  74                 public string KeyStore {
  75                         get { return _store; }
  76                         set { _store = value; }
  77                 }
  78
  79                 public string ProviderName {
  80                         get { return _providerName; }
  81                         set { _providerName = value; }
  82                 }
  83
  84                 public int ProviderType {
  85                         get { return _type; }
  86                         set { _type = value; }
  87                 }
  88
  89                 // Methods
  90
  91                 public override IPermission CreatePermission ()
  92                 {
  93                         if (this.Unrestricted)
  94                                 return new KeyContainerPermission (PermissionState.Unrestricted);
  95                         else if (EmptyEntry ())
  96                                 return new KeyContainerPermission (_flags);
  97                         else {
  98                                 KeyContainerPermissionAccessEntry[] list = new KeyContainerPermissionAccessEntry [1];
  99                                 list [0] = new KeyContainerPermissionAccessEntry (_store, _providerName, _type, _containerName, _spec, _flags);
 100                                 return new KeyContainerPermission (_flags, list);
 101                         }
 102                 }
 103
 104                 private bool EmptyEntry ()
 105                 {
 106                         if (_containerName != null)
 107                                 return false;
 108                         if (_spec != 0)
 109                                 return false;
 110                         if (_store != null)
 111                                 return false;
 112                         if (_providerName != null)
 113                                 return false;
 114                         if (_type != 0)
 115                                 return false;
 116                         return true;
 117                 }
 118         }
 119 }
 120