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// System.Security.Policy.FileCodeGroup
//
// Author(s):
// Nick Drochak (ndrochak@gol.com)
//
// (C) 2001 Nick Drochak, All rights reserved.
using System.Security.Policy;
using System.Security.Permissions;
using System.Collections;
using System; // for MonoTODO attribute
namespace System.Security.Policy
{
[Serializable]
public sealed class FileCodeGroup : CodeGroup
{
FileIOPermissionAccess m_access;
[MonoTODO("Check if membershipCondition is valid")]
public FileCodeGroup(IMembershipCondition membershipCondition,
FileIOPermissionAccess access)
: base(membershipCondition, null)
{
if (!Enum.IsDefined(typeof(FileIOPermissionAccess), access))
throw new ArgumentException("Value not defined for FileIOPermissionAccess","access");
m_access = access;
}
public override CodeGroup Copy()
{
FileCodeGroup copy = new FileCodeGroup(MembershipCondition, m_access);
foreach (CodeGroup child in Children)
{
AddChild(child.Copy());
}
return copy;
}
public override string MergeLogic
{
get
{
return "Union";
}
}
[MonoTODO]
public override PolicyStatement Resolve( Evidence evidence)
{
if (null == evidence)
throw new ArgumentNullException("evidence");
if (null == PolicyStatement)
throw new PolicyException();
if (!MembershipCondition.Check(evidence))
return null;
IEnumerator hostEnumerator = evidence.GetHostEnumerator();
while (hostEnumerator.MoveNext())
{
// FIXME: not sure what to do here
// How do we check the URL and make a PolicyStatement?
}
throw new NotImplementedException();
}
public override CodeGroup ResolveMatchingCodeGroups(Evidence evidence)
{
if (null == evidence)
throw new ArgumentNullException("evidence");
if (!MembershipCondition.Check(evidence))
return null;
FileCodeGroup matchRoot = new FileCodeGroup(MembershipCondition, m_access);
foreach (CodeGroup child in Children)
{
CodeGroup childMatchingCodeGroup = child.ResolveMatchingCodeGroups(evidence);
if (childMatchingCodeGroup != null)
AddChild(childMatchingCodeGroup);
}
return matchRoot;
}
public override string AttributeString
{
get
{
return null;
}
}
public override string PermissionSetName
{
get
{
return "Same directory FileIO - " + m_access.ToString();
}
}
public override bool Equals(object o)
{
if (!(o is FileCodeGroup))
return false;
if (this.m_access != ((FileCodeGroup)o).m_access)
return false;
return Equals((CodeGroup)o, false);
}
[MonoTODO]
public override int GetHashCode()
{
throw new NotImplementedException();
}
protected override void ParseXml(SecurityElement e, PolicyLevel level)
{
m_access = (FileIOPermissionAccess)Enum.Parse(typeof(FileIOPermissionAccess), e.Attribute("Access"), true);
}
protected override void CreateXml(SecurityElement element, PolicyLevel level)
{
element.AddAttribute("Access", m_access.ToString());
}
} // public abstract class CodeGroup
} // namespace System.Security.Policy
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