SecurityVersion.cs source code in C# .NET

                        Code:
                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Security / SecurityVersion.cs / 1 / SecurityVersion.cs
                        
                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------

namespace System.ServiceModel.Security 
{
    using System.Collections.Generic; 
    using System.ServiceModel.Channels; 
    using System.ServiceModel;
    using System.ServiceModel.Description; 
    using System.IO;
    using System.IdentityModel.Claims;
    using System.IdentityModel.Policy;
    using System.ServiceModel.Security.Tokens; 
    using System.Threading;
    using System.Globalization; 
    using System.ServiceModel.Diagnostics; 
    using System.Xml;
 
    using ISignatureValueSecurityElement = System.IdentityModel.ISignatureValueSecurityElement;

    public abstract class SecurityVersion
    { 
        readonly XmlDictionaryString headerName;
        readonly XmlDictionaryString headerNamespace; 
        readonly XmlDictionaryString headerPrefix; 

        internal SecurityVersion(XmlDictionaryString headerName, XmlDictionaryString headerNamespace, XmlDictionaryString headerPrefix) 
        {
            this.headerName = headerName;
            this.headerNamespace = headerNamespace;
            this.headerPrefix = headerPrefix; 
        }
 
        internal XmlDictionaryString HeaderName 
        {
            get { return this.headerName; } 
        }

        internal XmlDictionaryString HeaderNamespace
        { 
            get { return this.headerNamespace; }
        } 
 
        internal XmlDictionaryString HeaderPrefix
        { 
            get { return this.headerPrefix; }
        }

        internal abstract XmlDictionaryString FailedAuthenticationFaultCode 
        {
            get; 
        } 

        internal abstract XmlDictionaryString InvalidSecurityTokenFaultCode 
        {
            get;
        }
 
        internal abstract XmlDictionaryString InvalidSecurityFaultCode
        { 
            get; 
        }
 
        internal virtual bool SupportsSignatureConfirmation
        {
            get { return false; }
        } 

        public static SecurityVersion WSSecurity10 
        { 
            get { return SecurityVersion10.Instance; }
        } 

        public static SecurityVersion WSSecurity11
        {
            get { return SecurityVersion11.Instance; } 
        }
 
        internal static SecurityVersion Default 
        {
            get { return WSSecurity11; } 
        }

        internal abstract ReceiveSecurityHeader CreateReceiveSecurityHeader(Message message,
            string actor, bool mustUnderstand, bool relay, 
            SecurityStandardsManager standardsManager,
            SecurityAlgorithmSuite algorithmSuite, 
            MessageDirection direction, 
            int headerIndex);
 
        internal abstract SendSecurityHeader CreateSendSecurityHeader(Message message,
            string actor, bool mustUnderstand, bool relay,
            SecurityStandardsManager standardsManager,
            SecurityAlgorithmSuite algorithmSuite, 
            MessageDirection direction);
 
        internal bool DoesMessageContainSecurityHeader(Message message) 
        {
            return message.Headers.FindHeader(this.HeaderName.Value, this.HeaderNamespace.Value) >= 0; 
        }

        internal int FindIndexOfSecurityHeader(Message message, string[] actors)
        { 
            return message.Headers.FindHeader(this.HeaderName.Value, this.HeaderNamespace.Value, actors);
 
        } 

        internal virtual bool IsReaderAtSignatureConfirmation(XmlDictionaryReader reader) 
        {
            return false;
        }
 
        internal virtual ISignatureValueSecurityElement ReadSignatureConfirmation(XmlDictionaryReader reader)
        { 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException( 
                SR.GetString(SR.SignatureConfirmationNotSupported)));
        } 

        // The security always look for Empty soap role.  If not found, we will also look for Ultimate actors (next incl).
        // In the future, till we support intermediary scenario, we should refactor this api to do not take actor parameter.
        internal ReceiveSecurityHeader TryCreateReceiveSecurityHeader(Message message, 
            string actor,
            SecurityStandardsManager standardsManager, 
            SecurityAlgorithmSuite algorithmSuite, MessageDirection direction) 
        {
            int headerIndex = message.Headers.FindHeader(this.HeaderName.Value, this.HeaderNamespace.Value, actor); 
            if (headerIndex < 0 && String.IsNullOrEmpty(actor))
            {
                headerIndex = message.Headers.FindHeader(this.HeaderName.Value, this.HeaderNamespace.Value, message.Version.Envelope.UltimateDestinationActorValues);
            } 

            if (headerIndex < 0) 
            { 
                return null;
            } 
            MessageHeaderInfo headerInfo = message.Headers[headerIndex];
            return CreateReceiveSecurityHeader(message,
                headerInfo.Actor, headerInfo.MustUnderstand, headerInfo.Relay,
                standardsManager, algorithmSuite, 
                direction, headerIndex);
        } 
 
        internal virtual void WriteSignatureConfirmation(XmlDictionaryWriter writer, string id, byte[] signatureConfirmation)
        { 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(
                SR.GetString(SR.SignatureConfirmationNotSupported)));
        }
 
        internal void WriteStartHeader(XmlDictionaryWriter writer)
        { 
            writer.WriteStartElement(this.HeaderPrefix.Value, this.HeaderName, this.HeaderNamespace); 
        }
 
        class SecurityVersion10 : SecurityVersion
        {
            static readonly SecurityVersion10 instance = new SecurityVersion10();
 
            protected SecurityVersion10()
                : base(XD.SecurityJan2004Dictionary.Security, XD.SecurityJan2004Dictionary.Namespace, XD.SecurityJan2004Dictionary.Prefix) 
            { 
            }
 
            public static SecurityVersion10 Instance
            {
                get { return instance; }
            } 

            internal override XmlDictionaryString FailedAuthenticationFaultCode 
            { 
                get { return XD.SecurityJan2004Dictionary.FailedAuthenticationFaultCode; }
            } 

            internal override XmlDictionaryString InvalidSecurityTokenFaultCode
            {
                get { return XD.SecurityJan2004Dictionary.InvalidSecurityTokenFaultCode; } 
            }
 
            internal override XmlDictionaryString InvalidSecurityFaultCode 
            {
                get { return XD.SecurityJan2004Dictionary.InvalidSecurityFaultCode; } 
            }

            internal override SendSecurityHeader CreateSendSecurityHeader(Message message,
                string actor, bool mustUnderstand, bool relay, 
                SecurityStandardsManager standardsManager,
                SecurityAlgorithmSuite algorithmSuite, 
                MessageDirection direction) 
            {
                return new WSSecurityOneDotZeroSendSecurityHeader(message, actor, mustUnderstand, relay, standardsManager, algorithmSuite, direction); 
            }

            internal override ReceiveSecurityHeader CreateReceiveSecurityHeader(Message message,
                string actor, bool mustUnderstand, bool relay, 
                SecurityStandardsManager standardsManager,
                SecurityAlgorithmSuite algorithmSuite, 
                MessageDirection direction, 
                int headerIndex)
            { 
                return new WSSecurityOneDotZeroReceiveSecurityHeader(
                    message,
                    actor, mustUnderstand, relay,
                    standardsManager, 
                    algorithmSuite, headerIndex, direction);
            } 
 
            public override string ToString()
            { 
                return "WSSecurity10";
            }
        }
 
        sealed class SecurityVersion11 : SecurityVersion10
        { 
            static readonly SecurityVersion11 instance = new SecurityVersion11(); 

            SecurityVersion11() 
                : base()
            {
            }
 
            public new static SecurityVersion11 Instance
            { 
                get { return instance; } 
            }
 
            internal override bool SupportsSignatureConfirmation
            {
                get { return true; }
            } 

            internal override ReceiveSecurityHeader CreateReceiveSecurityHeader(Message message, 
                string actor, bool mustUnderstand, bool relay, 
                SecurityStandardsManager standardsManager,
                SecurityAlgorithmSuite algorithmSuite, 
                MessageDirection direction,
                int headerIndex)
            {
                return new WSSecurityOneDotOneReceiveSecurityHeader( 
                    message,
                    actor, mustUnderstand, relay, 
                    standardsManager, 
                    algorithmSuite, headerIndex, direction);
            } 

            internal override SendSecurityHeader CreateSendSecurityHeader(Message message,
                string actor, bool mustUnderstand, bool relay,
                SecurityStandardsManager standardsManager, 
                SecurityAlgorithmSuite algorithmSuite, MessageDirection direction)
            { 
                return new WSSecurityOneDotOneSendSecurityHeader(message, actor, mustUnderstand, relay, standardsManager, algorithmSuite, direction); 
            }
 
            internal override bool IsReaderAtSignatureConfirmation(XmlDictionaryReader reader)
            {
                return reader.IsStartElement(XD.SecurityXXX2005Dictionary.SignatureConfirmation, XD.SecurityXXX2005Dictionary.Namespace);
            } 

            internal override ISignatureValueSecurityElement ReadSignatureConfirmation(XmlDictionaryReader reader) 
            { 
                reader.MoveToStartElement(XD.SecurityXXX2005Dictionary.SignatureConfirmation, XD.SecurityXXX2005Dictionary.Namespace);
                bool isEmptyElement = reader.IsEmptyElement; 
                string id = XmlHelper.GetRequiredNonEmptyAttribute(reader, XD.UtilityDictionary.IdAttribute, XD.UtilityDictionary.Namespace);
                byte[] signatureValue = XmlHelper.GetRequiredBase64Attribute(reader, XD.SecurityXXX2005Dictionary.ValueAttribute, null);
                reader.ReadStartElement();
                if (!isEmptyElement) 
                {
                    reader.ReadEndElement(); 
                } 
                return new SignatureConfirmationElement(id, signatureValue, this);
            } 

            internal override void WriteSignatureConfirmation(XmlDictionaryWriter writer, string id, byte[] signature)
            {
                if (id == null) 
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("id"); 
                } 
                if (signature == null)
                { 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("signature");
                }
                writer.WriteStartElement(XD.SecurityXXX2005Dictionary.Prefix.Value, XD.SecurityXXX2005Dictionary.SignatureConfirmation, XD.SecurityXXX2005Dictionary.Namespace);
                writer.WriteAttributeString(XD.UtilityDictionary.Prefix.Value, XD.UtilityDictionary.IdAttribute, XD.UtilityDictionary.Namespace, id); 
                writer.WriteStartAttribute(XD.SecurityXXX2005Dictionary.ValueAttribute, null);
                writer.WriteBase64(signature, 0, signature.Length); 
                writer.WriteEndAttribute(); 
                writer.WriteEndElement();
            } 

            public override string ToString()
            {
                return "WSSecurity11"; 
            }
        } 
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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