//
// System.Security.Policy.NetCodeGroup.cs
//
// Authors:
// Jackson Harper (Jackson@LatitudeGeo.com)
// Sebastien Pouliot <sebastien@ximian.com>
//
// (C) 2002 Jackson Harper, All rights reserved
// Copyright (C) 2004-2005 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
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Collections;
using System.Globalization;
using System.Runtime.InteropServices;
using System.Security.Permissions;
namespace System.Security.Policy{
[Serializable]
[ComVisible (true)]
public sealed class NetCodeGroup : CodeGroup {
public static readonly string AbsentOriginScheme = String.Empty;
public static readonly string AnyOtherOriginScheme = "*";
private Hashtable _rules = new Hashtable ();
private int _hashcode;
public NetCodeGroup (IMembershipCondition membershipCondition)
: base (membershipCondition, null)
{
}
// for PolicyLevel (to avoid validation duplication)
internal NetCodeGroup (SecurityElement e, PolicyLevel level)
: base (e, level)
{
}
//
// Public Properties
//
public override string AttributeString {
get { return null; }
}
public override string MergeLogic {
get { return "Union"; }
}
public override string PermissionSetName {
get { return "Same site Web"; }
}
//
// Public Methods
//
[MonoTODO ("(2.0) missing validations")]
public void AddConnectAccess (string originScheme, CodeConnectAccess connectAccess)
{
if (originScheme == null)
throw new ArgumentException ("originScheme");
// TODO (2.0) - invalid characters in originScheme
if ((originScheme == AbsentOriginScheme) && (connectAccess.Scheme == CodeConnectAccess.OriginScheme)) {
throw new ArgumentOutOfRangeException ("connectAccess", Locale.GetText (
"Schema == CodeConnectAccess.OriginScheme"));
}
if (_rules.ContainsKey (originScheme)) {
// NULL has no effect
if (connectAccess != null) {
CodeConnectAccess[] existing = (CodeConnectAccess[]) _rules [originScheme];
CodeConnectAccess[] array = new CodeConnectAccess [existing.Length + 1];
Array.Copy (existing, 0, array, 0, existing.Length);
array [existing.Length] = connectAccess;
_rules [originScheme] = array;
}
}
else {
CodeConnectAccess[] array = new CodeConnectAccess [1];
array [0] = connectAccess;
_rules.Add (originScheme, array);
// add null to prevent access
}
}
public override CodeGroup Copy ()
{
NetCodeGroup copy = new NetCodeGroup (MembershipCondition);
copy.Name = Name;
copy.Description = Description;
copy.PolicyStatement = PolicyStatement;
foreach (CodeGroup child in Children) {
copy.AddChild (child.Copy ()); // deep copy
}
return copy;
}
private bool Equals (CodeConnectAccess[] rules1, CodeConnectAccess[] rules2)
{
for (int i=0; i < rules1.Length; i++) {
bool found = false;
for (int j=0; j < rules2.Length; j++) {
if (rules1 [i].Equals (rules2 [j])) {
found = true;
break;
}
}
if (!found)
return false;
}
return true;
}
public override bool Equals (object o)
{
if (!base.Equals (o))
return false;
NetCodeGroup ncg = (o as NetCodeGroup);
if (ncg == null)
return false;
// check rules
foreach (DictionaryEntry de in _rules) {
bool found = false;
CodeConnectAccess[] ccas = (CodeConnectAccess[]) ncg._rules [de.Key];
if (ccas != null)
found = Equals ((CodeConnectAccess[]) de.Value, ccas);
else
found = (de.Value == null);
if (!found)
return false;
}
return true;
}
public DictionaryEntry[] GetConnectAccessRules ()
{
DictionaryEntry[] result = new DictionaryEntry [_rules.Count];
_rules.CopyTo (result, 0);
return result;
}
public override int GetHashCode ()
{
if (_hashcode == 0) {
_hashcode = base.GetHashCode ();
foreach (DictionaryEntry de in _rules) {
CodeConnectAccess[] ccas = (CodeConnectAccess[]) de.Value;
if (ccas != null) {
foreach (CodeConnectAccess cca in ccas) {
_hashcode ^= cca.GetHashCode ();
}
}
}
}
return _hashcode;
}
public override PolicyStatement Resolve (Evidence evidence)
{
if (evidence == null)
throw new ArgumentNullException ("evidence");
if (!MembershipCondition.Check (evidence))
return null;
PermissionSet ps = null;
if (this.PolicyStatement == null)
ps = new PermissionSet (PermissionState.None);
else
ps = this.PolicyStatement.PermissionSet.Copy ();
if (this.Children.Count > 0) {
foreach (CodeGroup child_cg in this.Children) {
PolicyStatement child_pst = child_cg.Resolve (evidence);
if (child_pst != null) {
ps = ps.Union (child_pst.PermissionSet);
}
}
}
PolicyStatement pst = this.PolicyStatement.Copy ();
pst.PermissionSet = ps;
return pst;
}
public void ResetConnectAccess ()
{
_rules.Clear ();
}
public override CodeGroup ResolveMatchingCodeGroups (Evidence evidence)
{
if (evidence == null)
throw new ArgumentNullException ("evidence");
CodeGroup return_group = null;
if (MembershipCondition.Check (evidence)) {
return_group = Copy ();
foreach (CodeGroup child_group in Children) {
CodeGroup matching =
child_group.ResolveMatchingCodeGroups (evidence);
if (matching == null)
continue;
return_group.AddChild (matching);
}
}
return return_group;
}
[MonoTODO ("(2.0) Add new stuff (CodeConnectAccess) into XML")]
protected override void CreateXml (SecurityElement element, PolicyLevel level)
{
base.CreateXml (element, level);
}
[MonoTODO ("(2.0) Parse new stuff (CodeConnectAccess) from XML")]
protected override void ParseXml (SecurityElement e, PolicyLevel level)
{
base.ParseXml (e, level);
}
}
}
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