WSFederationHttpBinding.cs source code in C# .NET

                        Code:
                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / WSFederationHttpBinding.cs / 1 / WSFederationHttpBinding.cs
                        
                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------
namespace System.ServiceModel
{ 
    using System;
    using System.Text; 
    using System.Collections.Generic; 
    using System.Collections.ObjectModel;
    using System.Configuration; 
    using System.Globalization;
    using System.Net;
    using System.Net.Security;
    using System.Runtime.Serialization; 
    using System.Security.Principal;
    using System.ServiceModel.Channels; 
    using System.ServiceModel.Configuration; 
    using System.ServiceModel.Security;
 
    using System.Xml;

    public class WSFederationHttpBinding : WSHttpBindingBase
    { 
        static readonly MessageSecurityVersion WSMessageSecurityVersion = MessageSecurityVersion.WSSecurity11WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11BasicSecurityProfile10;
 
        Uri privacyNoticeAt; 
        int privacyNoticeVersion;
        WSFederationHttpSecurity security = new WSFederationHttpSecurity(); 

        public WSFederationHttpBinding(string configName) : this()
        {
            ApplyConfiguration(configName); 
        }
 
        public WSFederationHttpBinding() : base() 
        {
        } 

        public WSFederationHttpBinding(WSFederationHttpSecurityMode securityMode)
            : this(securityMode, false)
        { 
        }
 
        public WSFederationHttpBinding(WSFederationHttpSecurityMode securityMode, bool reliableSessionEnabled) 
            : base(reliableSessionEnabled)
        { 
            security.Mode = securityMode;
        }

 
        internal WSFederationHttpBinding(WSFederationHttpSecurity security, PrivacyNoticeBindingElement privacy, bool reliableSessionEnabled)
            : base(reliableSessionEnabled) 
        { 
            this.security = security;
            if ( null != privacy ) 
            {
                this.privacyNoticeAt = privacy.Url;
                this.privacyNoticeVersion = privacy.Version;
            } 
        }
 
        public Uri PrivacyNoticeAt 
        {
            get { return this.privacyNoticeAt; } 
            set { this.privacyNoticeAt = value; }
        }

        public int PrivacyNoticeVersion 
        {
            get { return this.privacyNoticeVersion; } 
            set { this.privacyNoticeVersion = value; } 
        }
 
        public WSFederationHttpSecurity Security
        {
            get { return this.security; }
        } 

        void ApplyConfiguration(string configurationName) 
        { 
            WSFederationHttpBindingCollectionElement section = WSFederationHttpBindingCollectionElement.GetBindingCollectionElement();
            WSFederationHttpBindingElement element = section.Bindings[configurationName]; 
            if (element == null)
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ConfigurationErrorsException(
                    SR.GetString(SR.ConfigInvalidBindingConfigurationName, 
                                 configurationName,
                                 ConfigurationStrings.WSFederationHttpBindingCollectionElementName))); 
            } 
            else
            { 
                element.ApplyConfiguration(this);
            }
        }
 
        PrivacyNoticeBindingElement CreatePrivacyPolicy()
        { 
            PrivacyNoticeBindingElement privacy = null; 

            if (this.PrivacyNoticeAt != null) 
            {
                privacy = new PrivacyNoticeBindingElement();
                privacy.Url = this.PrivacyNoticeAt;
                privacy.Version = this.privacyNoticeVersion; 
            }
 
            return privacy; 
        }
 
        // if you make changes here, see also WS2007FederationHttpBinding.TryCreate()
        internal static bool TryCreate(SecurityBindingElement sbe, TransportBindingElement transport, PrivacyNoticeBindingElement privacy, ReliableSessionBindingElement rsbe, TransactionFlowBindingElement tfbe, out Binding binding)
        {
            bool isReliableSession = (rsbe != null); 
            binding = null;
 
            // reverse GetTransport 
            HttpTransportSecurity transportSecurity = new HttpTransportSecurity();
            WSFederationHttpSecurityMode mode; 
            if (!GetSecurityModeFromTransport(transport, transportSecurity, out mode))
            {
                return false;
            } 

            HttpsTransportBindingElement httpsBinding = transport as HttpsTransportBindingElement; 
            if (httpsBinding != null && httpsBinding.MessageSecurityVersion != null) 
            {
                if (httpsBinding.MessageSecurityVersion.SecurityPolicyVersion != WSMessageSecurityVersion.SecurityPolicyVersion) 
                {
                    return false;
                }
            } 

            WSFederationHttpSecurity security; 
            if (TryCreateSecurity(sbe, mode, transportSecurity, isReliableSession, out security)) 
            {
                binding = new WSFederationHttpBinding(security, privacy, isReliableSession); 
            }

            if (rsbe != null && rsbe.ReliableMessagingVersion != ReliableMessagingVersion.WSReliableMessagingFebruary2005)
            { 
                return false;
            } 
 
            if (tfbe != null && tfbe.TransactionProtocol != TransactionProtocol.WSAtomicTransactionOctober2004)
            { 
                return false;
            }

            return binding != null; 
        }
 
        protected override TransportBindingElement GetTransport() 
        {
            if (security.Mode == WSFederationHttpSecurityMode.None || security.Mode == WSFederationHttpSecurityMode.Message) 
            {
                return this.HttpTransport;
            }
            else 
            {
                return this.HttpsTransport; 
            } 
        }
 
        internal static bool GetSecurityModeFromTransport(TransportBindingElement transport, HttpTransportSecurity transportSecurity, out WSFederationHttpSecurityMode mode)
        {
            mode = WSFederationHttpSecurityMode.None | WSFederationHttpSecurityMode.Message | WSFederationHttpSecurityMode.TransportWithMessageCredential;
            if (transport is HttpsTransportBindingElement) 
            {
                mode = WSFederationHttpSecurityMode.TransportWithMessageCredential; 
            } 
            else if (transport is HttpTransportBindingElement)
            { 
                mode = WSFederationHttpSecurityMode.None | WSFederationHttpSecurityMode.Message;
            }
            else
            { 
                return false;
            } 
            return true; 
        }
 
        protected override SecurityBindingElement CreateMessageSecurity()
        {
            return security.CreateMessageSecurity(this.ReliableSession.Enabled, WSMessageSecurityVersion);
        } 

        // if you make changes here, see also WS2007FederationHttpBinding.TryCreateSecurity() 
        static bool TryCreateSecurity(SecurityBindingElement sbe, WSFederationHttpSecurityMode mode, HttpTransportSecurity transportSecurity, bool isReliableSession, out WSFederationHttpSecurity security) 
        {
            if (!WSFederationHttpSecurity.TryCreate(sbe, mode, transportSecurity, isReliableSession, WSMessageSecurityVersion, out security)) 
                return false;
            // the last check: make sure that security binding element match the incoming security
            return SecurityElement.AreBindingsMatching(security.CreateMessageSecurity(isReliableSession, WSMessageSecurityVersion), sbe);
        } 

        public override BindingElementCollection CreateBindingElements() 
        {   // return collection of BindingElements 

            BindingElementCollection bindingElements = base.CreateBindingElements(); 
            // order of BindingElements is important

            PrivacyNoticeBindingElement privacy = this.CreatePrivacyPolicy();
            if (privacy != null) 
            {
                // This must go first. 
                bindingElements.Insert( 0, privacy ); 
            }
 
            return bindingElements;
        }
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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WSFederationHttpBinding.cs source code in C# .NET

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