mcs/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 // (C) 2004 Novell (http://www.novell.com)
   9 //
  10
  11 //
  12 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  13 //
  14 // Permission is hereby granted, free of charge, to any person obtaining
  15 // a copy of this software and associated documentation files (the
  16 // "Software"), to deal in the Software without restriction, including
  17 // without limitation the rights to use, copy, modify, merge, publish,
  18 // distribute, sublicense, and/or sell copies of the Software, and to
  19 // permit persons to whom the Software is furnished to do so, subject to
  20 // the following conditions:
  21 //
  22 // The above copyright notice and this permission notice shall be
  23 // included in all copies or substantial portions of the Software.
  24 //
  25 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  29 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  30 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  31 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  32 //
  33
  34 using System;
  35 using System.Collections;
  36 using System.Runtime.CompilerServices;
  37
  38 namespace System.Security.Principal {
  39
  40         [Serializable]
  41         public class WindowsPrincipal : IPrincipal {
  42
  43                 private WindowsIdentity _identity;
  44                 // http://groups.google.ca/groups?q=WindowsPrincipal+m_roles&hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=OghXf4OgCHA.4228%40tkmsftngp08&rnum=4
  45                 private string [] m_roles;
  46
  47                 // case sensitivity versus number of groups
  48                 // http://groups.google.ca/groups?q=WindowsPrincipal+m_roles&hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=%23JEMHsMQCHA.1916%40tkmsftngp13&rnum=5
  49
  50                 public WindowsPrincipal (WindowsIdentity ntIdentity)
  51                 {
  52                         if (ntIdentity == null)
  53                                 throw new ArgumentNullException ("ntIdentity");
  54
  55                         _identity = ntIdentity;
  56                 }
  57
  58                 // properties
  59
  60                 public virtual IIdentity Identity {
  61                         get { return _identity; }
  62                 }
  63
  64                 // methods
  65
  66                 public virtual bool IsInRole (int rid)
  67                 {
  68                         if (IsPosix) {
  69                                 return IsMemberOfGroupId (Token, (IntPtr) rid);
  70                         }
  71                         else {
  72                                 string role = null;
  73                                 switch (rid) {
  74                                         case 544: // Administrator
  75                                                 role = "BUILTIN\\Administrators";
  76                                                 break;
  77                                         case 545: // User
  78                                                 role = "BUILTIN\\Users";
  79                                                 break;
  80                                         case 546: // Guest
  81                                                 role = "BUILTIN\\Guests";
  82                                                 break;
  83                                         case 547: // PowerUser
  84                                                 role = "BUILTIN\\Power Users";
  85                                                 break;
  86                                         case 548: // AccountOperator
  87                                                 role = "BUILTIN\\Account Operators";
  88                                                 break;
  89                                         case 549: // SystemOperator
  90                                                 role = "BUILTIN\\System Operators";
  91                                                 break;
  92                                         case 550: // PrintOperator
  93                                                 role = "BUILTIN\\Print Operators";
  94                                                 break;
  95                                         case 551: // BackupOperator
  96                                                 role = "BUILTIN\\Backup Operators";
  97                                                 break;
  98                                         case 552: // Replicator
  99                                                 role = "BUILTIN\\Replicator";
 100                                                 break;
 101                                         default:
 102                                                 return false;
 103                                 }
 104                                 return IsInRole (role);
 105                         }
 106                 }
 107
 108                 public virtual bool IsInRole (string role)
 109                 {
 110                         if (role == null)
 111                                 return false;   // ArgumentNullException
 112
 113                         if (IsPosix) {
 114                                 // note: Posix is always case-sensitive
 115                                 return IsMemberOfGroupName (Token, role);
 116                         }
 117                         else {
 118                                 // Windows specific code that
 119                                 // (a) build the role cache like the MS framework (for compatibility)
 120                                 // (b) case sensitive (for Fx 1.0) and case insensitive (later Fx)
 121                                 if (m_roles == null) {
 122                                         m_roles = WindowsIdentity._GetRoles (Token);
 123                                 }
 124 #if !NET_1_0
 125                                 role = role.ToUpperInvariant ();
 126 #endif
 127                                 foreach (string check in m_roles) {
 128 #if NET_1_0
 129                                         if (role == check)
 130                                                 return true;
 131 #else
 132                                         Console.WriteLine ("> {0}", check);
 133                                         if ((check != null) && (role == check.ToUpperInvariant ()))
 134                                                 return true;
 135 #endif
 136                                 }
 137                                 return false;
 138                         }
 139                 }
 140
 141                 public virtual bool IsInRole (WindowsBuiltInRole role)
 142                 {
 143                         if (IsPosix) {
 144                                 // right now we only map Administrator == root
 145                                 string group = null;
 146                                 switch (role) {
 147                                         case WindowsBuiltInRole.Administrator:
 148                                                 group = "root";
 149                                                 break;
 150                                         default:
 151                                                 return false;
 152                                 }
 153                                 return IsInRole (group);
 154                         }
 155                         else {
 156                                 return IsInRole ((int) role);
 157                         }
 158                 }
 159
 160                 private static bool IsPosix {
 161                         get { return ((int) Environment.Platform == 128); }
 162                 }
 163
 164                 private IntPtr Token {
 165                         get { return (_identity as WindowsIdentity).Token; }
 166                 }
 167
 168                 // see mono/mono/metadata/security.c for implementation
 169
 170                 // note: never called by Win32 code (i.e. always return false)
 171                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 172                 private extern static bool IsMemberOfGroupId (IntPtr user, IntPtr group);
 173
 174                 // note: never called by Win32 code (i.e. always return false)
 175                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 176                 private extern static bool IsMemberOfGroupName (IntPtr user, string group);
 177         }
 178 }