mcs/class/corlib/System.IO.IsolatedStorage/IsolatedStorage.cs

   1 //
   2 // System.IO.IsolatedStorage.cs
   3 //
   4 // Authors:
   5 //      Duncan Mak (duncan@ximian.com)
   6 //      Sebastien Pouliot  <sebastien@ximian.com>
   7 //
   8 // (C) Ximian, Inc. http://www.ximian.com
   9 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 #if !NET_2_1
  32 using System.Globalization;
  33 using System.Reflection;
  34 using System.Runtime.InteropServices;
  35 using System.Security;
  36 using System.Security.Permissions;
  37 using System.Security.Policy;
  38
  39 namespace System.IO.IsolatedStorage {
  40
  41 #if NET_2_0
  42         [ComVisible (true)]
  43 #endif
  44         public abstract class IsolatedStorage : MarshalByRefObject {
  45
  46                 // Constructor
  47                 protected IsolatedStorage ()
  48                         : base ()
  49                 {
  50                 }
  51
  52                 internal IsolatedStorageScope storage_scope;
  53                 internal object _assemblyIdentity;
  54                 internal object _domainIdentity;
  55                 internal object _applicationIdentity;
  56
  57                 // Properties
  58
  59 #if NET_2_0
  60                 [MonoTODO ("requires manifest support")]
  61                 [ComVisible (false)]
  62                 public object ApplicationIdentity {
  63                         [SecurityPermission (SecurityAction.Demand, ControlPolicy=true)]
  64                         get {
  65                                 if ((storage_scope & IsolatedStorageScope.Application) == 0) {
  66                                         throw new InvalidOperationException (Locale.GetText ("Invalid Isolation Scope."));
  67                                 }
  68                                 if (_applicationIdentity == null)
  69                                         throw new InvalidOperationException (Locale.GetText ("Identity unavailable."));
  70
  71                                 throw new NotImplementedException (Locale.GetText ("CAS related"));
  72                         }
  73                 }
  74 #endif
  75
  76                 public object AssemblyIdentity {
  77                         [SecurityPermission (SecurityAction.Demand, ControlPolicy=true)]
  78                         get {
  79 #if NET_2_0
  80                                 if ((storage_scope & IsolatedStorageScope.Assembly) == 0) {
  81                                         throw new InvalidOperationException (Locale.GetText ("Invalid Isolation Scope."));
  82                                 }
  83                                 if (_assemblyIdentity == null)
  84                                         throw new InvalidOperationException (Locale.GetText ("Identity unavailable."));
  85 #endif
  86                                 return _assemblyIdentity;
  87                         }
  88                 }
  89
  90                 [CLSCompliant (false)]
  91                 public virtual ulong CurrentSize {
  92                         get {
  93                                 throw new InvalidOperationException (
  94                                         Locale.GetText ("IsolatedStorage does not have a preset CurrentSize."));
  95                         }
  96                 }
  97
  98                 public object DomainIdentity {
  99                         [SecurityPermission (SecurityAction.Demand, ControlPolicy=true)]
 100                         get {
 101                                 if ((storage_scope & IsolatedStorageScope.Domain) == 0) {
 102                                         throw new InvalidOperationException (Locale.GetText ("Invalid Isolation Scope."));
 103                                 }
 104                                 if (_domainIdentity == null)
 105                                         throw new InvalidOperationException (Locale.GetText ("Identity unavailable."));
 106                                 return _domainIdentity;
 107                         }
 108                 }
 109
 110                 [CLSCompliant (false)]
 111                 public virtual ulong MaximumSize {
 112                         get {
 113                                 throw new InvalidOperationException (
 114                                         Locale.GetText ("IsolatedStorage does not have a preset MaximumSize."));
 115                         }
 116                 }
 117
 118                 public IsolatedStorageScope Scope {
 119                         get { return storage_scope; }
 120                 }
 121
 122                 protected virtual char SeparatorExternal {
 123                         get { return System.IO.Path.DirectorySeparatorChar; }
 124                 }
 125
 126                 protected virtual char SeparatorInternal {
 127                         get { return '.'; }
 128                 }
 129
 130                 // Methods
 131                 protected abstract IsolatedStoragePermission GetPermission (PermissionSet ps);
 132
 133                 protected void InitStore (IsolatedStorageScope scope, Type domainEvidenceType, Type assemblyEvidenceType)
 134                 {
 135                         // I know it's useless - but it's tested as such...
 136                         switch (scope) {
 137                         case (IsolatedStorageScope.Assembly | IsolatedStorageScope.User):
 138                         case (IsolatedStorageScope.Assembly | IsolatedStorageScope.User | IsolatedStorageScope.Domain):
 139                                 throw new NotImplementedException (scope.ToString ());
 140                         default:
 141                                 // invalid (incomplete) scope
 142                                 throw new ArgumentException (scope.ToString ());
 143                         }
 144                 }
 145 #if NET_2_0
 146                 [MonoTODO ("requires manifest support")]
 147                 protected void InitStore (IsolatedStorageScope scope, Type appEvidenceType)
 148                 {
 149                         if (AppDomain.CurrentDomain.ApplicationIdentity == null)
 150                                 throw new IsolatedStorageException (Locale.GetText ("No ApplicationIdentity available for AppDomain."));
 151
 152                         if (appEvidenceType == null) {
 153                                 // TODO - Choose evidence
 154                         }
 155
 156                         // no exception here because this can work without CAS
 157                         storage_scope = scope;
 158                 }
 159 #endif
 160                 public abstract void Remove ();
 161         }
 162 }
 163 /* NET_2_1 */
 164 #endif