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

   1 //
   2 // System.Security.Permissions.HostProtectionAttribute 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.Runtime.InteropServices;
  30
  31 namespace System.Security.Permissions {
  32
  33         [AttributeUsage (AttributeTargets.Assembly | AttributeTargets.Class | AttributeTargets.Struct |
  34                 AttributeTargets.Constructor | AttributeTargets.Method | AttributeTargets.Delegate,
  35                 AllowMultiple = true, Inherited = false)]
  36         [ComVisible (true)]
  37         [Serializable]
  38         public sealed class HostProtectionAttribute : CodeAccessSecurityAttribute {
  39
  40                 private HostProtectionResource _resources;
  41
  42                 public HostProtectionAttribute ()
  43                         : base (SecurityAction.LinkDemand)
  44                 {
  45                 }
  46
  47                 public HostProtectionAttribute (SecurityAction action)
  48                         : base (action)
  49                 {
  50                         if (action != SecurityAction.LinkDemand) {
  51                                 string msg = String.Format (Locale.GetText ("Only {0} is accepted."), SecurityAction.LinkDemand);
  52                                 throw new ArgumentException (msg, "action");
  53                         }
  54                 }
  55
  56
  57                 public bool ExternalProcessMgmt {
  58                         get { return ((_resources & HostProtectionResource.ExternalProcessMgmt) != 0); }
  59                         set {
  60                                 if (value) {
  61                                         _resources |= HostProtectionResource.ExternalProcessMgmt;
  62                                 }
  63                                 else {
  64                                         _resources &= ~HostProtectionResource.ExternalProcessMgmt;
  65                                 }
  66                         }
  67                 }
  68
  69                 public bool ExternalThreading {
  70                         get { return ((_resources & HostProtectionResource.ExternalThreading) != 0); }
  71                         set {
  72                                 if (value) {
  73                                         _resources |= HostProtectionResource.ExternalThreading;
  74                                 }
  75                                 else {
  76                                         _resources &= ~HostProtectionResource.ExternalThreading;
  77                                 }
  78                         }
  79                 }
  80
  81                 public bool MayLeakOnAbort {
  82                         get { return ((_resources & HostProtectionResource.MayLeakOnAbort) != 0); }
  83                         set {
  84                                 if (value) {
  85                                         _resources |= HostProtectionResource.MayLeakOnAbort;
  86                                 }
  87                                 else {
  88                                         _resources &= ~HostProtectionResource.MayLeakOnAbort;
  89                                 }
  90                         }
  91                 }
  92
  93                 [ComVisible (true)]
  94                 public bool SecurityInfrastructure {
  95                         get { return ((_resources & HostProtectionResource.SecurityInfrastructure) != 0); }
  96                         set {
  97                                 if (value) {
  98                                         _resources |= HostProtectionResource.SecurityInfrastructure;
  99                                 }
 100                                 else {
 101                                         _resources &= ~HostProtectionResource.SecurityInfrastructure;
 102                                 }
 103                         }
 104                 }
 105
 106                 public bool SelfAffectingProcessMgmt {
 107                         get { return ((_resources & HostProtectionResource.SelfAffectingProcessMgmt) != 0); }
 108                         set {
 109                                 if (value) {
 110                                         _resources |= HostProtectionResource.SelfAffectingProcessMgmt;
 111                                 }
 112                                 else {
 113                                         _resources &= ~HostProtectionResource.SelfAffectingProcessMgmt;
 114                                 }
 115                         }
 116                 }
 117
 118                 public bool SelfAffectingThreading {
 119                         get { return ((_resources & HostProtectionResource.SelfAffectingThreading) != 0); }
 120                         set {
 121                                 if (value) {
 122                                         _resources |= HostProtectionResource.SelfAffectingThreading;
 123                                 }
 124                                 else {
 125                                         _resources &= ~HostProtectionResource.SelfAffectingThreading;
 126                                 }
 127                         }
 128                 }
 129
 130                 public bool SharedState {
 131                         get { return ((_resources & HostProtectionResource.SharedState) != 0); }
 132                         set {
 133                                 if (value) {
 134                                         _resources |= HostProtectionResource.SharedState;
 135                                 }
 136                                 else {
 137                                         _resources &= ~HostProtectionResource.SharedState;
 138                                 }
 139                         }
 140                 }
 141
 142                 public bool Synchronization {
 143                         get { return ((_resources & HostProtectionResource.Synchronization) != 0); }
 144                         set {
 145                                 if (value) {
 146                                         _resources |= HostProtectionResource.Synchronization;
 147                                 }
 148                                 else {
 149                                         _resources &= ~HostProtectionResource.Synchronization;
 150                                 }
 151                         }
 152                 }
 153
 154                 public bool UI {
 155                         get { return ((_resources & HostProtectionResource.UI) != 0); }
 156                         set {
 157                                 if (value) {
 158                                         _resources |= HostProtectionResource.UI;
 159                                 }
 160                                 else {
 161                                         _resources &= ~HostProtectionResource.UI;
 162                                 }
 163                         }
 164                 }
 165
 166                 public HostProtectionResource Resources {
 167                         get { return _resources; }
 168                         set { _resources = value; }
 169                 }
 170
 171
 172                 public override IPermission CreatePermission ()
 173                 {
 174 #if NET_2_1
 175                         return null;
 176 #else
 177                         // looks like permission is internal
 178                         return new HostProtectionPermission (_resources);
 179 #endif
 180                 }
 181         }
 182 }
 183