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 <spouliot@motus.com>
   7 //
   8 // (C) 2002 Ximian, Inc. http://www.ximian.com
   9 // Portions Copyright (C) 2003 Motus Technologies (http://www.motus.com)
  10 //
  11
  12 //
  13 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  14 //
  15 // Permission is hereby granted, free of charge, to any person obtaining
  16 // a copy of this software and associated documentation files (the
  17 // "Software"), to deal in the Software without restriction, including
  18 // without limitation the rights to use, copy, modify, merge, publish,
  19 // distribute, sublicense, and/or sell copies of the Software, and to
  20 // permit persons to whom the Software is furnished to do so, subject to
  21 // the following conditions:
  22 //
  23 // The above copyright notice and this permission notice shall be
  24 // included in all copies or substantial portions of the Software.
  25 //
  26 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  27 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  29 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  30 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  31 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  32 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33 //
  34
  35 using System;
  36
  37 namespace System.Security.Permissions {
  38
  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
  51                 // Constructor
  52                 public FileIOPermissionAttribute (SecurityAction action) : base (action) {}
  53
  54                 // Properties
  55                 public string All
  56                 {
  57 #if ! NET_1_0
  58                         get { throw new NotSupportedException ("All"); }
  59 #endif
  60                         set {
  61                                 append = value;
  62                                 path = value;
  63                                 read = value;
  64                                 write = value;
  65                         }
  66                 }
  67
  68                 public string Append
  69                 {
  70                         get { return append; }
  71                         set { append = value; }
  72                 }
  73
  74                 public string PathDiscovery
  75                 {
  76                         get { return path; }
  77                         set { path = value; }
  78                 }
  79
  80                 public string Read
  81                 {
  82                         get { return read; }
  83                         set { read = value; }
  84                 }
  85
  86                 public string Write
  87                 {
  88                         get { return write; }
  89                         set { write = value; }
  90                 }
  91
  92                 // Methods
  93                 public override IPermission CreatePermission ()
  94                 {
  95                         FileIOPermission perm = null;
  96                         if (this.Unrestricted)
  97                                 perm = new FileIOPermission (PermissionState.Unrestricted);
  98                         else {
  99                                 perm = new FileIOPermission (PermissionState.None);
 100                                 if (append != null)
 101                                         perm.AddPathList (FileIOPermissionAccess.Append, append);
 102                                 if (path != null)
 103                                         perm.AddPathList (FileIOPermissionAccess.PathDiscovery, path);
 104                                 if (read != null)
 105                                         perm.AddPathList (FileIOPermissionAccess.Read, read);
 106                                 if (write != null)
 107                                         perm.AddPathList (FileIOPermissionAccess.Write, write);
 108                         }
 109                         return perm;
 110                 }
 111         }
 112 }