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 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 namespace System.Security.Permissions {
  33
  34         [AttributeUsage (AttributeTargets.Assembly | AttributeTargets.Class |
  35                          AttributeTargets.Struct | AttributeTargets.Constructor |
  36                          AttributeTargets.Method, AllowMultiple=true, Inherited=false)]
  37         [Serializable]
  38         public sealed class FileIOPermissionAttribute : CodeAccessSecurityAttribute {
  39
  40                 // Fields
  41                 private string append;
  42                 private string path;
  43                 private string read;
  44                 private string write;
  45 #if NET_2_0
  46                 private FileIOPermissionAccess allFiles;
  47                 private FileIOPermissionAccess allLocalFiles;
  48                 private string changeAccessControl;
  49                 private string viewAccessControl;
  50                 private string viewAndModify;
  51 #endif
  52
  53                 // Constructor
  54                 public FileIOPermissionAttribute (SecurityAction action) : base (action)
  55                 {
  56                 }
  57
  58                 // Properties
  59 #if NET_2_0
  60                 [Obsolete ("use newer properties")]
  61 #endif
  62                 public string All {
  63 #if NET_1_1
  64                         get { throw new NotSupportedException ("All"); }
  65 #endif
  66                         set {
  67                                 append = value;
  68                                 path = value;
  69                                 read = value;
  70                                 write = value;
  71                         }
  72                 }
  73
  74                 public string Append {
  75                         get { return append; }
  76                         set { append = value; }
  77                 }
  78
  79                 public string PathDiscovery {
  80                         get { return path; }
  81                         set { path = value; }
  82                 }
  83
  84                 public string Read {
  85                         get { return read; }
  86                         set { read = value; }
  87                 }
  88
  89                 public string Write {
  90                         get { return write; }
  91                         set { write = value; }
  92                 }
  93
  94 #if NET_2_0
  95                 public FileIOPermissionAccess AllFiles {
  96                         get { return allFiles; }
  97                         set { allFiles = value; }
  98                 }
  99
 100                 public FileIOPermissionAccess AllLocalFiles {
 101                         get { return allLocalFiles; }
 102                         set { allLocalFiles = value; }
 103                 }
 104
 105                 public string ChangeAccessControl {
 106                         get { return changeAccessControl; }
 107                         set { changeAccessControl = value; }
 108                 }
 109
 110                 public string ViewAccessControl {
 111                         get { return viewAccessControl; }
 112                         set { viewAccessControl = value; }
 113                 }
 114
 115                 public string ViewAndModify {
 116                         get { throw new NotSupportedException (); }     // as documented
 117                         set {
 118                                 append = value;
 119                                 path = value;
 120                                 read = value;
 121                                 write = value;
 122                         }
 123                 }
 124 #endif
 125
 126                 // Methods
 127                 public override IPermission CreatePermission ()
 128                 {
 129                         FileIOPermission perm = null;
 130                         if (this.Unrestricted)
 131                                 perm = new FileIOPermission (PermissionState.Unrestricted);
 132                         else {
 133                                 perm = new FileIOPermission (PermissionState.None);
 134                                 if (append != null)
 135                                         perm.AddPathList (FileIOPermissionAccess.Append, append);
 136                                 if (path != null)
 137                                         perm.AddPathList (FileIOPermissionAccess.PathDiscovery, path);
 138                                 if (read != null)
 139                                         perm.AddPathList (FileIOPermissionAccess.Read, read);
 140                                 if (write != null)
 141                                         perm.AddPathList (FileIOPermissionAccess.Write, write);
 142                         }
 143                         return perm;
 144                 }
 145         }
 146 }