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 !MOONLIGHT
  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         [ComVisible (true)]
  42         public abstract class IsolatedStorage : MarshalByRefObject {
  43
  44                 // Constructor
  45                 protected IsolatedStorage ()
  46                         : base ()
  47                 {
  48                 }
  49
  50                 internal IsolatedStorageScope storage_scope;
  51                 internal object _assemblyIdentity;
  52                 internal object _domainIdentity;
  53                 internal object _applicationIdentity;
  54
  55                 // Properties
  56
  57                 [MonoTODO ("Does not currently use the manifest support")]
  58                 [ComVisible (false)]
  59                 public object ApplicationIdentity {
  60                         [SecurityPermission (SecurityAction.Demand, ControlPolicy=true)]
  61                         get {
  62                                 if ((storage_scope & IsolatedStorageScope.Application) == 0) {
  63                                         throw new InvalidOperationException (Locale.GetText ("Invalid Isolation Scope."));
  64                                 }
  65                                 if (_applicationIdentity == null)
  66                                         throw new InvalidOperationException (Locale.GetText ("Identity unavailable."));
  67
  68                                 throw new NotImplementedException (Locale.GetText ("CAS related"));
  69                         }
  70                 }
  71
  72                 public object AssemblyIdentity {
  73                         [SecurityPermission (SecurityAction.Demand, ControlPolicy=true)]
  74                         get {
  75                                 if ((storage_scope & IsolatedStorageScope.Assembly) == 0) {
  76                                         throw new InvalidOperationException (Locale.GetText ("Invalid Isolation Scope."));
  77                                 }
  78                                 if (_assemblyIdentity == null)
  79                                         throw new InvalidOperationException (Locale.GetText ("Identity unavailable."));
  80                                 return _assemblyIdentity;
  81                         }
  82                 }
  83
  84                 [CLSCompliant (false)]
  85 #if NET_4_0 || MOBILE
  86                 [Obsolete]
  87 #endif
  88                 public virtual ulong CurrentSize {
  89                         get {
  90                                 throw new InvalidOperationException (
  91                                         Locale.GetText ("IsolatedStorage does not have a preset CurrentSize."));
  92                         }
  93                 }
  94
  95                 public object DomainIdentity {
  96                         [SecurityPermission (SecurityAction.Demand, ControlPolicy=true)]
  97                         get {
  98                                 if ((storage_scope & IsolatedStorageScope.Domain) == 0) {
  99                                         throw new InvalidOperationException (Locale.GetText ("Invalid Isolation Scope."));
 100                                 }
 101                                 if (_domainIdentity == null)
 102                                         throw new InvalidOperationException (Locale.GetText ("Identity unavailable."));
 103                                 return _domainIdentity;
 104                         }
 105                 }
 106
 107                 [CLSCompliant (false)]
 108 #if NET_4_0 || MOBILE
 109                 [Obsolete]
 110 #endif
 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 #if NET_4_0 || MOBILE
 123                 [ComVisible (false)]
 124                 public virtual long AvailableFreeSpace {
 125                         get {
 126                                 throw new InvalidOperationException ("This property is not defined for this store.");
 127                         }
 128                 }
 129
 130                 [ComVisible (false)]
 131                 public virtual long Quota {
 132                         get {
 133                                 throw new InvalidOperationException ("This property is not defined for this store.");
 134                         }
 135                 }
 136
 137                 [ComVisible (false)]
 138                 public virtual long UsedSize {
 139                         get {
 140                                 throw new InvalidOperationException ("This property is not defined for this store.");
 141                         }
 142                 }
 143 #endif
 144
 145                 protected virtual char SeparatorExternal {
 146                         get { return System.IO.Path.DirectorySeparatorChar; }
 147                 }
 148
 149                 protected virtual char SeparatorInternal {
 150                         get { return '.'; }
 151                 }
 152
 153                 // Methods
 154                 protected abstract IsolatedStoragePermission GetPermission (PermissionSet ps);
 155
 156                 protected void InitStore (IsolatedStorageScope scope, Type domainEvidenceType, Type assemblyEvidenceType)
 157                 {
 158                         // I know it's useless - but it's tested as such...
 159                         switch (scope) {
 160                         case (IsolatedStorageScope.Assembly | IsolatedStorageScope.User):
 161                         case (IsolatedStorageScope.Assembly | IsolatedStorageScope.User | IsolatedStorageScope.Domain):
 162                                 throw new NotImplementedException (scope.ToString ());
 163                         default:
 164                                 // invalid (incomplete) scope
 165                                 throw new ArgumentException (scope.ToString ());
 166                         }
 167                 }
 168
 169                 [MonoTODO ("requires manifest support")]
 170                 protected void InitStore (IsolatedStorageScope scope, Type appEvidenceType)
 171                 {
 172 #if !MOBILE
 173                         if (AppDomain.CurrentDomain.ApplicationIdentity == null)
 174                                 throw new IsolatedStorageException (Locale.GetText ("No ApplicationIdentity available for AppDomain."));
 175
 176                         if (appEvidenceType == null) {
 177                                 // TODO - Choose evidence
 178                         }
 179 #endif
 180
 181                         // no exception here because this can work without CAS
 182                         storage_scope = scope;
 183                 }
 184                 public abstract void Remove ();
 185
 186 #if NET_4_0 || MOBILE
 187                 [ComVisible (false)]
 188                 public virtual bool IncreaseQuotaTo (long newQuotaSize)
 189                 {
 190                         return false;
 191                 }
 192 #endif
 193         }
 194 }
 195 /* MOONLIGHT */
 196 #endif