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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
namespace System.Security.Permissions {
using System;
using System.IO;
using System.Security;
using System.Security.Util;
using System.Globalization;
[Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public enum IsolatedStorageContainment {
None = 0x00,
DomainIsolationByUser = 0x10,
ApplicationIsolationByUser = 0x15,
AssemblyIsolationByUser = 0x20,
DomainIsolationByMachine = 0x30,
AssemblyIsolationByMachine = 0x40,
ApplicationIsolationByMachine = 0x45,
DomainIsolationByRoamingUser = 0x50,
AssemblyIsolationByRoamingUser = 0x60,
ApplicationIsolationByRoamingUser = 0x65,
AdministerIsolatedStorageByUser = 0x70,
//AdministerIsolatedStorageByMachine = 0x80,
UnrestrictedIsolatedStorage = 0xF0
};
[Serializable]
#if !FEATURE_CORECLR
[SecurityPermissionAttribute( SecurityAction.InheritanceDemand, ControlEvidence = true, ControlPolicy = true )]
#endif
[System.Runtime.InteropServices.ComVisible(true)]
abstract public class IsolatedStoragePermission
: CodeAccessPermission, IUnrestrictedPermission
{
//------------------------------------------------------
//
// PRIVATE STATE DATA
//
//------------------------------------------------------
/// <internalonly/>
internal long m_userQuota;
/// <internalonly/>
internal long m_machineQuota;
/// <internalonly/>
internal long m_expirationDays;
/// <internalonly/>
internal bool m_permanentData;
/// <internalonly/>
internal IsolatedStorageContainment m_allowed;
//------------------------------------------------------
//
// CONSTRUCTORS
//
//------------------------------------------------------
protected IsolatedStoragePermission(PermissionState state)
{
if (state == PermissionState.Unrestricted)
{
m_userQuota = Int64.MaxValue;
m_machineQuota = Int64.MaxValue;
m_expirationDays = Int64.MaxValue ;
m_permanentData = true;
m_allowed = IsolatedStorageContainment.UnrestrictedIsolatedStorage;
}
else if (state == PermissionState.None)
{
m_userQuota = 0;
m_machineQuota = 0;
m_expirationDays = 0;
m_permanentData = false;
m_allowed = IsolatedStorageContainment.None;
}
else
{
throw new ArgumentException(Environment.GetResourceString("Argument_InvalidPermissionState"));
}
}
internal IsolatedStoragePermission(IsolatedStorageContainment UsageAllowed,
long ExpirationDays, bool PermanentData)
{
m_userQuota = 0; // typical demand won't include quota
m_machineQuota = 0; // typical demand won't include quota
m_expirationDays = ExpirationDays;
m_permanentData = PermanentData;
m_allowed = UsageAllowed;
}
internal IsolatedStoragePermission(IsolatedStorageContainment UsageAllowed,
long ExpirationDays, bool PermanentData, long UserQuota)
{
m_machineQuota = 0;
m_userQuota = UserQuota;
m_expirationDays = ExpirationDays;
m_permanentData = PermanentData;
m_allowed = UsageAllowed;
}
//------------------------------------------------------
//
// PUBLIC ACCESSOR METHODS
//
//------------------------------------------------------
// properties
public long UserQuota {
set{
m_userQuota = value;
}
get{
return m_userQuota;
}
}
#if false
internal long MachineQuota {
set{
m_machineQuota = value;
}
get{
return m_machineQuota;
}
}
internal long ExpirationDays {
set{
m_expirationDays = value;
}
get{
return m_expirationDays;
}
}
internal bool PermanentData {
set{
m_permanentData = value;
}
get{
return m_permanentData;
}
}
#endif
public IsolatedStorageContainment UsageAllowed {
set{
m_allowed = value;
}
get{
return m_allowed;
}
}
//------------------------------------------------------
//
// CODEACCESSPERMISSION IMPLEMENTATION
//
//------------------------------------------------------
public bool IsUnrestricted()
{
return m_allowed == IsolatedStorageContainment.UnrestrictedIsolatedStorage;
}
//------------------------------------------------------
//
// INTERNAL METHODS
//
//------------------------------------------------------
internal static long min(long x,long y) {return x>y?y:x;}
internal static long max(long x,long y) {return x<y?y:x;}
#if FEATURE_CAS_POLICY
//------------------------------------------------------
//
// PUBLIC ENCODING METHODS
//
//------------------------------------------------------
private const String _strUserQuota = "UserQuota";
private const String _strMachineQuota = "MachineQuota";
private const String _strExpiry = "Expiry";
private const String _strPermDat = "Permanent";
public override SecurityElement ToXml()
{
return ToXml ( this.GetType().FullName );
}
internal SecurityElement ToXml(String permName)
{
SecurityElement esd = CodeAccessPermission.CreatePermissionElement( this, permName );
if (!IsUnrestricted())
{
esd.AddAttribute( "Allowed", Enum.GetName( typeof( IsolatedStorageContainment ), m_allowed ) );
if (m_userQuota>0)
{
esd.AddAttribute(_strUserQuota, (m_userQuota).ToString(CultureInfo.InvariantCulture)) ;
}
if (m_machineQuota>0)
{
esd.AddAttribute(_strMachineQuota, (m_machineQuota).ToString(CultureInfo.InvariantCulture)) ;
}
if (m_expirationDays>0)
{
esd.AddAttribute( _strExpiry, (m_expirationDays).ToString(CultureInfo.InvariantCulture)) ;
}
if (m_permanentData)
{
esd.AddAttribute(_strPermDat, (m_permanentData).ToString()) ;
}
}
else
{
esd.AddAttribute( "Unrestricted", "true" );
}
return esd;
}
public override void FromXml(SecurityElement esd)
{
CodeAccessPermission.ValidateElement( esd, this );
m_allowed = IsolatedStorageContainment.None; // default if no match
if (XMLUtil.IsUnrestricted(esd))
{
m_allowed = IsolatedStorageContainment.UnrestrictedIsolatedStorage;
}
else
{
String allowed = esd.Attribute( "Allowed" );
if (allowed != null)
m_allowed = (IsolatedStorageContainment)Enum.Parse( typeof( IsolatedStorageContainment ), allowed );
}
if (m_allowed == IsolatedStorageContainment.UnrestrictedIsolatedStorage)
{
m_userQuota = Int64.MaxValue;
m_machineQuota = Int64.MaxValue;
m_expirationDays = Int64.MaxValue ;
m_permanentData = true;
}
else
{
String param;
param = esd.Attribute (_strUserQuota) ;
m_userQuota = param != null ? Int64.Parse(param, CultureInfo.InvariantCulture) : 0 ;
param = esd.Attribute (_strMachineQuota) ;
m_machineQuota = param != null ? Int64.Parse(param, CultureInfo.InvariantCulture) : 0 ;
param = esd.Attribute (_strExpiry) ;
m_expirationDays = param != null ? Int64.Parse(param, CultureInfo.InvariantCulture) : 0 ;
param = esd.Attribute (_strPermDat) ;
m_permanentData = param != null ? (Boolean.Parse(param)) : false ;
}
}
#endif // FEATURE_CAS_POLICY
}
}
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