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//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
namespace System.IdentityModel.Tokens
{
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Xml;
using System.Xml.Serialization;
using System.Runtime.Serialization;
using System.IdentityModel.Selectors;
public class SamlEvidence
{
readonly ImmutableCollection<string> assertionIdReferences = new ImmutableCollection<string>();
readonly ImmutableCollection<SamlAssertion> assertions = new ImmutableCollection<SamlAssertion>();
bool isReadOnly = false;
public SamlEvidence(IEnumerable<string> assertionIdReferences)
: this(assertionIdReferences, null)
{
}
public SamlEvidence(IEnumerable<SamlAssertion> assertions)
: this(null, assertions)
{
}
public SamlEvidence(IEnumerable<string> assertionIdReferences, IEnumerable<SamlAssertion> assertions)
{
if (assertionIdReferences == null && assertions == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument(SR.GetString(SR.SAMLEvidenceShouldHaveOneAssertion));
if (assertionIdReferences != null)
{
foreach (string idReference in assertionIdReferences)
{
if (string.IsNullOrEmpty(idReference))
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument(SR.GetString(SR.SAMLEntityCannotBeNullOrEmpty, XD.SamlDictionary.AssertionIdReference.Value));
this.assertionIdReferences.Add(idReference);
}
}
if (assertions != null)
{
foreach (SamlAssertion assertion in assertions)
{
if (assertion == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument(SR.GetString(SR.SAMLEntityCannotBeNullOrEmpty, XD.SamlDictionary.Assertion.Value));
this.assertions.Add(assertion);
}
}
}
public SamlEvidence()
{
}
public IList<string> AssertionIdReferences
{
get { return this.assertionIdReferences; }
}
public IList<SamlAssertion> Assertions
{
get { return this.assertions; }
}
public bool IsReadOnly
{
get { return this.isReadOnly; }
}
public void MakeReadOnly()
{
if (!this.isReadOnly)
{
foreach (SamlAssertion assertion in this.assertions)
{
assertion.MakeReadOnly();
}
this.assertionIdReferences.MakeReadOnly();
this.assertions.MakeReadOnly();
this.isReadOnly = true;
}
}
void CheckObjectValidity()
{
if ((this.assertions.Count == 0) && (this.assertionIdReferences.Count == 0))
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityTokenException(SR.GetString(SR.SAMLEvidenceShouldHaveOneAssertion)));
}
public virtual void ReadXml(XmlDictionaryReader reader, SamlSerializer samlSerializer, SecurityTokenSerializer keyInfoSerializer, SecurityTokenResolver outOfBandTokenResolver)
{
if (reader == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("reader"));
if (samlSerializer == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("samlSerializer"));
#pragma warning suppress 56506 // samlSerializer.DictionaryManager is never null.
SamlDictionary dictionary = samlSerializer.DictionaryManager.SamlDictionary;
reader.MoveToContent();
reader.Read();
while (reader.IsStartElement())
{
if (reader.IsStartElement(dictionary.AssertionIdReference, dictionary.Namespace))
{
reader.MoveToContent();
this.assertionIdReferences.Add(reader.ReadString());
reader.ReadEndElement();
}
else if (reader.IsStartElement(dictionary.Assertion, dictionary.Namespace))
{
SamlAssertion assertion = new SamlAssertion();
assertion.ReadXml(reader, samlSerializer, keyInfoSerializer, outOfBandTokenResolver);
this.assertions.Add(assertion);
}
else
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityTokenException(SR.GetString(SR.SAMLBadSchema, dictionary.Evidence.Value)));
}
if ((this.assertionIdReferences.Count == 0) && (this.assertions.Count == 0))
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityTokenException(SR.GetString(SR.SAMLEvidenceShouldHaveOneAssertionOnRead)));
reader.MoveToContent();
reader.ReadEndElement();
}
public virtual void WriteXml(XmlDictionaryWriter writer, SamlSerializer samlSerializer, SecurityTokenSerializer keyInfoSerializer)
{
CheckObjectValidity();
if (writer == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("writer"));
if (samlSerializer == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("samlSerializer"));
#pragma warning suppress 56506 // samlSerializer.DictionaryManager is never null.
SamlDictionary dictionary = samlSerializer.DictionaryManager.SamlDictionary;
writer.WriteStartElement(dictionary.PreferredPrefix.Value, dictionary.Evidence.Value, dictionary.Namespace.Value);
for (int i = 0; i < this.assertionIdReferences.Count; i++)
{
writer.WriteStartElement(dictionary.PreferredPrefix.Value, dictionary.AssertionIdReference, dictionary.Namespace);
writer.WriteString(this.assertionIdReferences[i]);
writer.WriteEndElement();
}
for (int i = 0; i < this.assertions.Count; i++)
{
this.assertions[i].WriteXml(writer, samlSerializer, keyInfoSerializer);
}
writer.WriteEndElement();
}
}
}
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