class/corlib/System.Security.Principal/WindowsPrincipal.cs

   1 //
   2 // WindowsPrincipal.cs: Windows IPrincipal implementation
   3 //
   4 // Author:
   5 //      Sebastien Pouliot (sebastien@ximian.com)
   6 //
   7 // (C) 2003 Motus Technologies Inc. (http://www.motus.com)
   8 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 using System.Collections;
  31 using System.Runtime.CompilerServices;
  32 using System.Runtime.InteropServices;
  33
  34 namespace System.Security.Principal {
  35
  36         [Serializable]
  37         [ComVisible (true)]
  38         public class WindowsPrincipal : IPrincipal {
  39
  40                 private WindowsIdentity _identity;
  41                 // http://groups.google.ca/groups?q=WindowsPrincipal+m_roles&hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=OghXf4OgCHA.4228%40tkmsftngp08&rnum=4
  42                 private string [] m_roles;
  43
  44                 // case sensitivity versus number of groups
  45                 // http://groups.google.ca/groups?q=WindowsPrincipal+m_roles&hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=%23JEMHsMQCHA.1916%40tkmsftngp13&rnum=5
  46
  47                 public WindowsPrincipal (WindowsIdentity ntIdentity)
  48                 {
  49                         if (ntIdentity == null)
  50                                 throw new ArgumentNullException ("ntIdentity");
  51
  52                         _identity = ntIdentity;
  53                 }
  54
  55                 // properties
  56
  57                 public virtual IIdentity Identity {
  58                         get { return _identity; }
  59                 }
  60
  61                 // methods
  62
  63                 public virtual bool IsInRole (int rid)
  64                 {
  65                         if (Environment.IsUnix) {
  66                                 return IsMemberOfGroupId (Token, (IntPtr) rid);
  67                         }
  68                         else {
  69                                 string role = null;
  70                                 switch (rid) {
  71                                         case 544: // Administrator
  72                                                 role = "BUILTIN\\Administrators";
  73                                                 break;
  74                                         case 545: // User
  75                                                 role = "BUILTIN\\Users";
  76                                                 break;
  77                                         case 546: // Guest
  78                                                 role = "BUILTIN\\Guests";
  79                                                 break;
  80                                         case 547: // PowerUser
  81                                                 role = "BUILTIN\\Power Users";
  82                                                 break;
  83                                         case 548: // AccountOperator
  84                                                 role = "BUILTIN\\Account Operators";
  85                                                 break;
  86                                         case 549: // SystemOperator
  87                                                 role = "BUILTIN\\System Operators";
  88                                                 break;
  89                                         case 550: // PrintOperator
  90                                                 role = "BUILTIN\\Print Operators";
  91                                                 break;
  92                                         case 551: // BackupOperator
  93                                                 role = "BUILTIN\\Backup Operators";
  94                                                 break;
  95                                         case 552: // Replicator
  96                                                 role = "BUILTIN\\Replicator";
  97                                                 break;
  98                                         default:
  99                                                 return false;
 100                                 }
 101                                 return IsInRole (role);
 102                         }
 103                 }
 104
 105                 public virtual bool IsInRole (string role)
 106                 {
 107                         if (role == null)
 108                                 return false;   // ArgumentNullException
 109
 110                         if (Environment.IsUnix) {
 111                                 // note: Posix is always case-sensitive
 112                                 return IsMemberOfGroupName (Token, role);
 113                         }
 114                         else {
 115                                 // Windows specific code that
 116                                 // (a) build the role cache like the MS framework (for compatibility)
 117                                 // (b) case sensitive (for Fx 1.0) and case insensitive (later Fx)
 118                                 if (m_roles == null) {
 119                                         m_roles = WindowsIdentity._GetRoles (Token);
 120                                 }
 121 #if !NET_1_0
 122                                 role = role.ToUpperInvariant ();
 123 #endif
 124                                 foreach (string check in m_roles) {
 125 #if NET_1_0
 126                                         if (role == check)
 127                                                 return true;
 128 #else
 129                                         if ((check != null) && (role == check.ToUpperInvariant ()))
 130                                                 return true;
 131 #endif
 132                                 }
 133                                 return false;
 134                         }
 135                 }
 136
 137                 public virtual bool IsInRole (WindowsBuiltInRole role)
 138                 {
 139                         if (Environment.IsUnix) {
 140                                 // right now we only map Administrator == root
 141                                 string group = null;
 142                                 switch (role) {
 143                                         case WindowsBuiltInRole.Administrator:
 144                                                 group = "root";
 145                                                 break;
 146                                         default:
 147                                                 return false;
 148                                 }
 149                                 return IsInRole (group);
 150                         }
 151                         else {
 152                                 return IsInRole ((int) role);
 153                         }
 154                 }
 155                 [MonoTODO ("not implemented")]
 156                 [ComVisible (false)]
 157                 public virtual bool IsInRole (SecurityIdentifier sid)
 158                 {
 159                         throw new NotImplementedException ();
 160                 }
 161
 162                 private IntPtr Token {
 163                         get { return (_identity as WindowsIdentity).Token; }
 164                 }
 165
 166                 // see mono/mono/metadata/security.c for implementation
 167
 168                 // note: never called by Win32 code (i.e. always return false)
 169                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 170                 private extern static bool IsMemberOfGroupId (IntPtr user, IntPtr group);
 171
 172                 // note: never called by Win32 code (i.e. always return false)
 173                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 174                 private extern static bool IsMemberOfGroupName (IntPtr user, string group);
 175         }
 176 }