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 \r
  34 namespace System.Security.Permissions {\r
  35 \r
  36 #if NET_2_0
  37         [ComVisible (true)]
  38 #endif
  39         [AttributeUsage (AttributeTargets.Assembly | AttributeTargets.Class |
  40                          AttributeTargets.Struct | AttributeTargets.Constructor |
  41                          AttributeTargets.Method, AllowMultiple=true, Inherited=false)]
  42         [Serializable]
  43         public sealed class FileIOPermissionAttribute : CodeAccessSecurityAttribute {
  44
  45                 // Fields
  46                 private string append;
  47                 private string path;
  48                 private string read;
  49                 private string write;
  50 #if NET_2_0
  51                 private FileIOPermissionAccess allFiles;
  52                 private FileIOPermissionAccess allLocalFiles;
  53                 private string changeAccessControl;
  54                 private string viewAccessControl;
  55                 private string viewAndModify;
  56 #endif
  57
  58                 // Constructor
  59                 public FileIOPermissionAttribute (SecurityAction action) : base (action)
  60                 {
  61                 }
  62
  63                 // Properties
  64 #if NET_2_0
  65                 [Obsolete ("use newer properties")]
  66 #endif
  67                 public string All {
  68 #if NET_1_1
  69                         get { throw new NotSupportedException ("All"); }
  70 #endif
  71                         set {
  72                                 append = value;
  73                                 path = value;
  74                                 read = value;
  75                                 write = value;
  76                         }
  77                 }
  78
  79                 public string Append {
  80                         get { return append; }
  81                         set { append = value; }
  82                 }
  83
  84                 public string PathDiscovery {
  85                         get { return path; }
  86                         set { path = value; }
  87                 }
  88
  89                 public string Read {
  90                         get { return read; }
  91                         set { read = value; }
  92                 }
  93
  94                 public string Write {
  95                         get { return write; }
  96                         set { write = value; }
  97                 }
  98
  99 #if NET_2_0
 100                 public FileIOPermissionAccess AllFiles {
 101                         get { return allFiles; }
 102                         set { allFiles = value; }
 103                 }
 104
 105                 public FileIOPermissionAccess AllLocalFiles {
 106                         get { return allLocalFiles; }
 107                         set { allLocalFiles = value; }
 108                 }
 109
 110                 public string ChangeAccessControl {
 111                         get { return changeAccessControl; }
 112                         set { changeAccessControl = value; }
 113                 }
 114
 115                 public string ViewAccessControl {
 116                         get { return viewAccessControl; }
 117                         set { viewAccessControl = value; }
 118                 }
 119
 120                 public string ViewAndModify {
 121                         get { throw new NotSupportedException (); }     // as documented
 122                         set {
 123                                 append = value;
 124                                 path = value;
 125                                 read = value;
 126                                 write = value;
 127                         }
 128                 }
 129 #endif
 130
 131                 // Methods
 132                 public override IPermission CreatePermission ()
 133                 {
 134                         FileIOPermission perm = null;
 135                         if (this.Unrestricted)
 136                                 perm = new FileIOPermission (PermissionState.Unrestricted);
 137                         else {
 138                                 perm = new FileIOPermission (PermissionState.None);
 139                                 if (append != null)
 140                                         perm.AddPathList (FileIOPermissionAccess.Append, append);
 141                                 if (path != null)
 142                                         perm.AddPathList (FileIOPermissionAccess.PathDiscovery, path);
 143                                 if (read != null)
 144                                         perm.AddPathList (FileIOPermissionAccess.Read, read);
 145                                 if (write != null)
 146                                         perm.AddPathList (FileIOPermissionAccess.Write, write);
 147                         }
 148                         return perm;
 149                 }
 150         }
 151 }