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//
// SamlEvidence.cs
//
// Author:
// Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 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
// "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;
using System.Collections.Generic;
using System.Xml;
using System.IdentityModel.Claims;
using System.IdentityModel.Policy;
using System.IdentityModel.Selectors;
namespace System.IdentityModel.Tokens
{
public class SamlEvidence
{
public SamlEvidence ()
{
}
public SamlEvidence (IEnumerable<string> assertionIdReferences)
: this (assertionIdReferences, new SamlAssertion [0])
{
}
public SamlEvidence (IEnumerable<SamlAssertion> assertions)
: this (new string [0], assertions)
{
}
public SamlEvidence (
IEnumerable<string> assertionIdReferences,
IEnumerable<SamlAssertion> assertions)
{
if (assertionIdReferences == null)
throw new ArgumentException ("assertionIdReferences are null.");
if (assertions == null)
throw new ArgumentException ("assertions are null.");
foreach (string r in assertionIdReferences) {
if (r == null)
throw new ArgumentException ("assertionIdReferences contain null item.");
references.Add (r);
}
foreach (SamlAssertion a in assertions) {
if (a == null)
throw new ArgumentException ("assertions contain null item.");
this.assertions.Add (a);
}
}
bool is_readonly;
List<string> references = new List<string> ();
List<SamlAssertion> assertions = new List<SamlAssertion> ();
public IList<string> AssertionIdReferences {
get { return references; }
}
public IList<SamlAssertion> Assertions {
get { return assertions; }
}
public bool IsReadOnly {
get { return is_readonly; }
}
private void CheckReadOnly ()
{
if (IsReadOnly)
throw new InvalidOperationException ("This SAML assertion is read-only.");
}
public void MakeReadOnly ()
{
is_readonly = true;
}
public virtual void ReadXml (XmlDictionaryReader reader,
SamlSerializer samlSerializer,
SecurityTokenSerializer keyInfoSerializer,
SecurityTokenResolver outOfBandTokenResolver)
{
if (reader == null)
throw new ArgumentNullException ("reader");
if (samlSerializer == null)
throw new ArgumentNullException ("samlSerializer");
references.Clear ();
assertions.Clear ();
reader.ReadStartElement ("Evidence", SamlConstants.Namespace);
for (reader.MoveToContent ();
reader.NodeType == XmlNodeType.Element;
reader.MoveToContent ()) {
if (reader.NamespaceURI != SamlConstants.Namespace)
throw new SecurityTokenException (String.Format ("Invalid SAML Evidence element: element '{0}' in namespace '{1}' is unexpected.", reader.LocalName, reader.NamespaceURI));
switch (reader.LocalName) {
case "Assertion":
SamlAssertion a = new SamlAssertion ();
a.ReadXml (reader, samlSerializer, keyInfoSerializer, outOfBandTokenResolver);
assertions.Add (a);
break;
case "AssertionIDReference":
references.Add (reader.ReadElementContentAsString ());
break;
default:
throw new SecurityTokenException (String.Format ("Invalid SAML Evidence element: SAML element '{0}' is unexpected.", reader.LocalName));
}
}
reader.ReadEndElement ();
if (references.Count == 0 && assertions.Count == 0)
throw new SecurityTokenException ("At least either one of AssertionIDReference or Assertion must exist in SAML Evidence.");
}
public virtual void WriteXml (XmlDictionaryWriter writer,
SamlSerializer samlSerializer,
SecurityTokenSerializer keyInfoSerializer)
{
if (writer == null)
throw new ArgumentNullException ("writer");
if (samlSerializer == null)
throw new ArgumentNullException ("samlSerializer");
if (references.Count == 0 && assertions.Count == 0)
throw new SecurityTokenException ("At least either one of AssertionIDReference or Assertion must exist in SAML Evidence.");
writer.WriteStartElement ("saml", "Evidence", SamlConstants.Namespace);
foreach (string s in references)
writer.WriteElementString ("saml", "AssertionIDReference", SamlConstants.Namespace, s);
foreach (SamlAssertion a in assertions)
a.WriteXml (writer, samlSerializer, keyInfoSerializer);
writer.WriteEndElement ();
}
}
}
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