SamlAttributeStatement.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / IdentityModel / System / IdentityModel / Tokens / SamlAttributeStatement.cs / 1305376 / SamlAttributeStatement.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

namespace System.IdentityModel.Tokens 
{
    using System.Collections.Generic; 
    using System.Collections.ObjectModel; 
    using System.Globalization;
    using System.IdentityModel; 
    using System.IdentityModel.Claims;
    using System.IdentityModel.Selectors;
    using System.Runtime.Serialization;
    using System.Xml.Serialization; 
    using System.Xml;
 
    public class SamlAttributeStatement : SamlSubjectStatement 
    {
        readonly ImmutableCollection attributes = new ImmutableCollection(); 
        bool isReadOnly = false;

        public SamlAttributeStatement()
        { 
        }
 
        public SamlAttributeStatement(SamlSubject samlSubject, IEnumerable attributes) 
            : base(samlSubject)
        { 
            if (attributes == null)
                throw  DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("attributes"));

            foreach (SamlAttribute attribute in attributes) 
            {
                if (attribute == null) 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument(SR.GetString(SR.SAMLEntityCannotBeNullOrEmpty, XD.SamlDictionary.Attribute.Value)); 

                this.attributes.Add(attribute); 
            }

            CheckObjectValidity();
        } 

        public IList Attributes 
        { 
            get { return this.attributes; }
        } 

        public override bool IsReadOnly
        {
            get { return this.isReadOnly; } 
        }
 
        public override void MakeReadOnly() 
        {
            if (!this.isReadOnly) 
            {
                foreach (SamlAttribute attribute in attributes)
                {
                    attribute.MakeReadOnly(); 
                }
 
                this.attributes.MakeReadOnly(); 

                this.isReadOnly = true; 
            }
        }

        void CheckObjectValidity() 
        {
            if (this.SamlSubject == null) 
                throw  DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityTokenException(SR.GetString(SR.SAMLSubjectStatementRequiresSubject))); 

            if (this.attributes.Count == 0) 
                throw  DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityTokenException(SR.GetString(SR.SAMLAttributeShouldHaveOneValue)));
        }

        public override 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(); 

            if (reader.IsStartElement(dictionary.Subject, dictionary.Namespace)) 
            {
                SamlSubject subject = new SamlSubject();
                subject.ReadXml(reader, samlSerializer, keyInfoSerializer, outOfBandTokenResolver);
                base.SamlSubject = subject; 
            }
            else 
            { 
                // SAML Subject is a required Attribute Statement clause.
                throw  DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityTokenException(SR.GetString(SR.SAMLAttributeStatementMissingSubjectOnRead))); 
            }

            while (reader.IsStartElement())
            { 
                if (reader.IsStartElement(dictionary.Attribute, dictionary.Namespace))
                { 
                    // SAML Attribute is a extensibility point. So ask the SAML serializer 
                    // to load this part.
                    SamlAttribute attribute = samlSerializer.LoadAttribute(reader, keyInfoSerializer, outOfBandTokenResolver); 
                    if (attribute == null)
                        throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityTokenException(SR.GetString(SR.SAMLUnableToLoadAttribute)));
                    this.attributes.Add(attribute);
                } 
                else
                { 
                    break; 
                }
            } 

            if (this.attributes.Count == 0)
            {
                // Each Attribute statement should have at least one attribute. 
                throw  DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityTokenException(SR.GetString(SR.SAMLAttributeStatementMissingAttributeOnRead)));
            } 
 
            reader.MoveToContent();
            reader.ReadEndElement(); 
        }

        public override 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.AttributeStatement, dictionary.Namespace); 

            this.SamlSubject.WriteXml(writer, samlSerializer, keyInfoSerializer); 

            for (int i = 0; i < this.attributes.Count; i++)
            {
                this.attributes[i].WriteXml(writer, samlSerializer, keyInfoSerializer); 
            }
 
            writer.WriteEndElement(); 
        }
 
        protected override void AddClaimsToList(IList claims)
        {
            if (claims == null)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("claims"); 

            for (int i = 0; i < attributes.Count; i++) 
            { 
                if (attributes[i] != null)
                { 
                    ReadOnlyCollection attributeClaims = attributes[i].ExtractClaims();
                    if (attributeClaims != null)
                    {
                        for (int j = 0; j < attributeClaims.Count; ++j) 
                            if (attributeClaims[j] != null)
                                claims.Add(attributeClaims[j]); 
                    } 
                }
            } 
        }
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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SamlAttributeStatement.cs source code in C# .NET

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