GenericXmlSecurityToken.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 / GenericXmlSecurityToken.cs / 1305376 / GenericXmlSecurityToken.cs
                        
                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------

namespace System.IdentityModel.Tokens 
{
    using System; 
    using System.Collections.ObjectModel; 
    using System.Globalization;
    using System.IO; 
    using System.IdentityModel.Claims;
    using System.IdentityModel.Policy;
    using System.Security.Cryptography;
    using System.Security.Principal; 
    using System.Xml;
    using System.Runtime.Serialization; 
    using System.Collections.Generic; 

    public class GenericXmlSecurityToken : SecurityToken 
    {
        const int SupportedPersistanceVersion = 1;
        string id;
        SecurityToken proofToken; 
        SecurityKeyIdentifierClause internalTokenReference;
        SecurityKeyIdentifierClause externalTokenReference; 
        XmlElement tokenXml; 
        ReadOnlyCollection authorizationPolicies;
        DateTime effectiveTime; 
        DateTime expirationTime;

        public GenericXmlSecurityToken(
            XmlElement tokenXml, 
            SecurityToken proofToken,
            DateTime effectiveTime, 
            DateTime expirationTime, 
            SecurityKeyIdentifierClause internalTokenReference,
            SecurityKeyIdentifierClause externalTokenReference, 
            ReadOnlyCollection authorizationPolicies
            )
        {
            if (tokenXml == null) 
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("tokenXml"); 
            } 

            this.id = GetId(tokenXml); 
            this.tokenXml = tokenXml;
            this.proofToken = proofToken;
            this.effectiveTime = effectiveTime.ToUniversalTime();
            this.expirationTime = expirationTime.ToUniversalTime(); 

            this.internalTokenReference = internalTokenReference; 
            this.externalTokenReference = externalTokenReference; 
            this.authorizationPolicies = authorizationPolicies ?? EmptyReadOnlyCollection.Instance;
        } 

        public override string Id
        {
            get { return this.id; } 
        }
 
        public override DateTime ValidFrom 
        {
            get { return this.effectiveTime; } 
        }

        public override DateTime ValidTo
        { 
            get { return this.expirationTime; }
        } 
 
        public SecurityKeyIdentifierClause InternalTokenReference
        { 
            get { return this.internalTokenReference; }
        }

        public SecurityKeyIdentifierClause ExternalTokenReference 
        {
            get { return this.externalTokenReference; } 
        } 

        public XmlElement TokenXml 
        {
            get { return this.tokenXml;  }
        }
 
        public SecurityToken ProofToken
        { 
            get { return this.proofToken; } 
        }
 
        public ReadOnlyCollection AuthorizationPolicies
        {
            get { return this.authorizationPolicies; }
        } 

        public override ReadOnlyCollection SecurityKeys 
        { 
            get
            { 
                if (this.proofToken != null)
                    return this.proofToken.SecurityKeys;
                else
                    return EmptyReadOnlyCollection.Instance; 
            }
        } 
 
        public override string ToString()
        { 
            StringWriter writer = new StringWriter(CultureInfo.InvariantCulture);
            writer.WriteLine("Generic XML token:");
            writer.WriteLine("   validFrom: {0}", this.ValidFrom);
            writer.WriteLine("   validTo: {0}", this.ValidTo); 
            if (this.internalTokenReference != null)
                writer.WriteLine("   InternalTokenReference: {0}", this.internalTokenReference); 
            if (this.externalTokenReference != null) 
                writer.WriteLine("   ExternalTokenReference: {0}", this.externalTokenReference);
            writer.WriteLine("   Token Element: ({0}, {1})", this.tokenXml.LocalName, this.tokenXml.NamespaceURI); 
            return writer.ToString();
        }

        static string GetId(XmlElement tokenXml) 
        {
            if (tokenXml != null) 
            { 
                string id = tokenXml.GetAttribute(UtilityStrings.IdAttribute, UtilityStrings.Namespace);
                if ( string.IsNullOrEmpty( id ) ) 
                {
                    // special case SAML 1.1 as this is the only possible ID as
                    // spec is closed.  SAML 2.0 is xs:ID
                    id = tokenXml.GetAttribute("AssertionID"); 

                    // if we are still null, "Id" 
                    if ( string.IsNullOrEmpty( id ) ) 
                    {
                        id = tokenXml.GetAttribute("Id"); 
                    }
                }

                if ( !string.IsNullOrEmpty(id) ) 
                {
                    return id; 
                } 
            }
 
            return null;
        }

        public override bool CanCreateKeyIdentifierClause() 
        {
            if (this.internalTokenReference != null && typeof(T) == this.internalTokenReference.GetType()) 
                return true; 

            if (this.externalTokenReference != null && typeof(T) == this.externalTokenReference.GetType()) 
                return true;

            return false;
        } 

        public override T CreateKeyIdentifierClause() 
        { 
            if (this.internalTokenReference != null && typeof(T) == this.internalTokenReference.GetType())
                return (T)this.internalTokenReference; 

            if (this.externalTokenReference != null && typeof(T) == this.externalTokenReference.GetType())
                return (T)this.externalTokenReference;
 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityTokenException(SR.GetString(SR.UnableToCreateTokenReference)));
        } 
 
        public override bool MatchesKeyIdentifierClause(SecurityKeyIdentifierClause keyIdentifierClause)
        { 
            if (this.internalTokenReference != null && this.internalTokenReference.Matches(keyIdentifierClause))
            {
                return true;
            } 
            else if (this.externalTokenReference != null && this.externalTokenReference.Matches(keyIdentifierClause))
            { 
                return true; 
            }
 
            return false;
        }
    }
} 

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

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