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

   1 //
   2 // System.Security.Permissions.FileIOPermissionAttribute.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 // Portions Copyright (C) 2003 Motus Technologies (http://www.motus.com)
  10 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System.Runtime.InteropServices;
  33
  34 namespace System.Security.Permissions {
  35
  36         [ComVisible (true)]
  37         [AttributeUsage (AttributeTargets.Assembly | AttributeTargets.Class |
  38                          AttributeTargets.Struct | AttributeTargets.Constructor |
  39                          AttributeTargets.Method, AllowMultiple=true, Inherited=false)]
  40         [Serializable]
  41         public sealed class FileIOPermissionAttribute : CodeAccessSecurityAttribute {
  42
  43                 // Fields
  44                 private string append;
  45                 private string path;
  46                 private string read;
  47                 private string write;
  48                 private FileIOPermissionAccess allFiles;
  49                 private FileIOPermissionAccess allLocalFiles;
  50                 private string changeAccessControl;
  51                 private string viewAccessControl;
  52                 //private string viewAndModify;
  53
  54                 // Constructor
  55                 public FileIOPermissionAttribute (SecurityAction action) : base (action)
  56                 {
  57                 }
  58
  59                 // Properties
  60                 [Obsolete ("use newer properties")]
  61                 public string All {
  62                         get { throw new NotSupportedException ("All"); }
  63                         set {
  64                                 append = value;
  65                                 path = value;
  66                                 read = value;
  67                                 write = value;
  68                         }
  69                 }
  70
  71                 public string Append {
  72                         get { return append; }
  73                         set { append = value; }
  74                 }
  75
  76                 public string PathDiscovery {
  77                         get { return path; }
  78                         set { path = value; }
  79                 }
  80
  81                 public string Read {
  82                         get { return read; }
  83                         set { read = value; }
  84                 }
  85
  86                 public string Write {
  87                         get { return write; }
  88                         set { write = value; }
  89                 }
  90
  91                 public FileIOPermissionAccess AllFiles {
  92                         get { return allFiles; }
  93                         set { allFiles = value; }
  94                 }
  95
  96                 public FileIOPermissionAccess AllLocalFiles {
  97                         get { return allLocalFiles; }
  98                         set { allLocalFiles = value; }
  99                 }
 100
 101                 public string ChangeAccessControl {
 102                         get { return changeAccessControl; }
 103                         set { changeAccessControl = value; }
 104                 }
 105
 106                 public string ViewAccessControl {
 107                         get { return viewAccessControl; }
 108                         set { viewAccessControl = value; }
 109                 }
 110
 111                 public string ViewAndModify {
 112                         get { throw new NotSupportedException (); }     // as documented
 113                         set {
 114                                 append = value;
 115                                 path = value;
 116                                 read = value;
 117                                 write = value;
 118                         }
 119                 }
 120                 // Methods
 121                 public override IPermission CreatePermission ()
 122                 {
 123 #if NET_2_1
 124                         return null;
 125 #else
 126                         FileIOPermission perm = null;
 127                         if (this.Unrestricted)
 128                                 perm = new FileIOPermission (PermissionState.Unrestricted);
 129                         else {
 130                                 perm = new FileIOPermission (PermissionState.None);
 131                                 if (append != null)
 132                                         perm.AddPathList (FileIOPermissionAccess.Append, append);
 133                                 if (path != null)
 134                                         perm.AddPathList (FileIOPermissionAccess.PathDiscovery, path);
 135                                 if (read != null)
 136                                         perm.AddPathList (FileIOPermissionAccess.Read, read);
 137                                 if (write != null)
 138                                         perm.AddPathList (FileIOPermissionAccess.Write, write);
 139                         }
 140                         return perm;
 141 #endif
 142                 }
 143         }
 144 }