//
// System.Security.Permissions.IsolatedStoragePermission.cs
//
-// Piers Haken <piersh@friskit.com>
+// Authors:
+// Piers Haken <piersh@friskit.com>
+// Sebastien Pouliot <sebastien@ximian.com>
//
// (C) 2002 Ximian, Inc. http://www.ximian.com
-//
-
-//
-// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
+// Copyright (C) 2004-2006 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
-using System;
using System.Globalization;
-using System.Security.Permissions;
+using System.Runtime.InteropServices;
+
+namespace System.Security.Permissions {
-namespace System.Security.Permissions
-{
[Serializable]
- public abstract class IsolatedStoragePermission : CodeAccessPermission, IUnrestrictedPermission
- {
+ [SecurityPermission (SecurityAction.InheritanceDemand, ControlEvidence = true, ControlPolicy = true)]
+ [ComVisible (true)]
+ public abstract class IsolatedStoragePermission : CodeAccessPermission, IUnrestrictedPermission {
+
+ private const int version = 1;
+
internal long m_userQuota;
internal long m_machineQuota;
internal long m_expirationDays;
internal bool m_permanentData;
internal IsolatedStorageContainment m_allowed;
- public IsolatedStoragePermission (PermissionState state)
+ protected IsolatedStoragePermission (PermissionState state)
{
- if (state == PermissionState.None)
- {
- m_userQuota = 0;
- m_machineQuota = 0;
- m_expirationDays = 0;
- m_permanentData = false;
- m_allowed = IsolatedStorageContainment.None;
- }
- else if (state == PermissionState.Unrestricted)
- {
- m_userQuota = Int64.MaxValue;
- m_machineQuota = Int64.MaxValue;
- m_expirationDays = Int64.MaxValue ;
- m_permanentData = true;
- m_allowed = IsolatedStorageContainment.UnrestrictedIsolatedStorage;
- }
- else
- {
- throw new ArgumentException("Invalid Permission state");
+ if (CheckPermissionState (state, true) == PermissionState.Unrestricted) {
+ UsageAllowed = IsolatedStorageContainment.UnrestrictedIsolatedStorage;
}
}
- public long UserQuota
- {
- set { m_userQuota = value; }
+ public long UserQuota {
get { return m_userQuota; }
+ set { m_userQuota = value; }
}
-
- public IsolatedStorageContainment UsageAllowed
- {
- set { m_allowed = value; }
+ public IsolatedStorageContainment UsageAllowed {
get { return m_allowed; }
+ set {
+ if (!Enum.IsDefined (typeof (IsolatedStorageContainment), value)) {
+ string msg = String.Format (Locale.GetText ("Invalid enum {0}"), value);
+ throw new ArgumentException (msg, "IsolatedStorageContainment");
+ }
+ m_allowed = value;
+ if (m_allowed == IsolatedStorageContainment.UnrestrictedIsolatedStorage) {
+ m_userQuota = Int64.MaxValue;
+ m_machineQuota = Int64.MaxValue;
+ m_expirationDays = Int64.MaxValue ;
+ m_permanentData = true;
+ }
+ }
}
public override SecurityElement ToXml ()
{
- SecurityElement e = new SecurityElement ("IPermission");
- e.AddAttribute ("class", GetType ().AssemblyQualifiedName);
- e.AddAttribute ("version", "1");
+ SecurityElement se = Element (version);
if (m_allowed == IsolatedStorageContainment.UnrestrictedIsolatedStorage)
- e.AddAttribute ("Unrestricted", "true");
-
- else if (m_allowed == IsolatedStorageContainment.None)
- e.AddAttribute ("Allowed", "None");
+ se.AddAttribute ("Unrestricted", "true");
+ else {
+ se.AddAttribute ("Allowed", m_allowed.ToString ());
+ if (m_userQuota > 0)
+ se.AddAttribute ("UserQuota", m_userQuota.ToString ());
+ }
- return e;
+ return se;
}
-
public override void FromXml (SecurityElement esd)
{
- if (esd == null)
- throw new ArgumentNullException (
- Locale.GetText ("The argument is null."));
-
- if (esd.Attribute ("class") != GetType ().AssemblyQualifiedName)
- throw new ArgumentException (
- Locale.GetText ("The argument is not valid"));
+ // General validation in CodeAccessPermission
+ CheckSecurityElement (esd, "esd", version, version);
+ // Note: we do not (yet) care about the return value
+ // as we only accept version 1 (min/max values)
+
+ m_userQuota = 0;
+ m_machineQuota = 0;
+ m_expirationDays = 0;
+ m_permanentData = false;
+ m_allowed = IsolatedStorageContainment.None;
+
+ if (IsUnrestricted (esd)) {
+ UsageAllowed = IsolatedStorageContainment.UnrestrictedIsolatedStorage;
+ } else {
+ string a = esd.Attribute ("Allowed");
+ if (a != null) {
+ UsageAllowed = (IsolatedStorageContainment) Enum.Parse (
+ typeof (IsolatedStorageContainment), a);
+ }
+ a = esd.Attribute ("UserQuota");
+ if (a != null) {
+ m_userQuota = Int64.Parse (a, CultureInfo.InvariantCulture);
+ }
+ }
+ }
- if (esd.Attribute ("version") != "1")
- throw new ArgumentException (
- Locale.GetText ("The argument is not valid"));
-
- if (esd.Attribute ("Unrestricted") == "true")
- m_allowed = IsolatedStorageContainment.UnrestrictedIsolatedStorage;
+ // helpers
- else if (esd.Attribute ("Allowed") == "None")
- m_allowed = IsolatedStorageContainment.None;
+ internal bool IsEmpty ()
+ {
+ // should we include internals ? or just publics ?
+ return ((m_userQuota == 0) && (m_allowed == IsolatedStorageContainment.None));
}
}
}
-
-
-
-
-
projects / mono.git / blobdiff