WSHttpBinding.cs source code in C# .NET

                        Code:
                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / WSHttpBinding.cs / 1 / WSHttpBinding.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 WSHttpBinding : WSHttpBindingBase
    { 
        static readonly MessageSecurityVersion WSMessageSecurityVersion = MessageSecurityVersion.WSSecurity11WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11BasicSecurityProfile10;
 
        WSHttpSecurity security = new WSHttpSecurity(); 

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

        public WSHttpBinding(SecurityMode securityMode) : this(securityMode, false) 
        {
        }

        public WSHttpBinding(SecurityMode securityMode, bool reliableSessionEnabled) 
            : base(reliableSessionEnabled)
        { 
            security.Mode = securityMode; 
        }
 
        internal WSHttpBinding(WSHttpSecurity security, bool reliableSessionEnabled)
            : base(reliableSessionEnabled)
        {
            this.security = security == null ? new WSHttpSecurity() : security; 
        }
 
        public bool AllowCookies 
        {
            get { return HttpTransport.AllowCookies; } 
            set
            {
                HttpTransport.AllowCookies = value;
                HttpsTransport.AllowCookies = value; 
            }
        } 
 
        public WSHttpSecurity Security
        { 
            get { return this.security; }
        }

        void ApplyConfiguration(string configurationName) 
        {
            WSHttpBindingCollectionElement section = WSHttpBindingCollectionElement.GetBindingCollectionElement(); 
            WSHttpBindingElement element = section.Bindings[configurationName]; 
            if (element == null)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ConfigurationErrorsException(
                    SR.GetString(SR.ConfigInvalidBindingConfigurationName,
                                 configurationName,
                                 ConfigurationStrings.WSHttpBindingCollectionElementName))); 
            }
            else 
            { 
                element.ApplyConfiguration(this);
            } 
        }

        public override BindingElementCollection CreateBindingElements()
        { 
            if (ReliableSession.Enabled)
            { 
                if (this.security.Mode == SecurityMode.Transport) 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.WSHttpDoesNotSupportRMWithHttps)));
            } 

            return base.CreateBindingElements();
        }
 
        // if you make changes here, see also WS2007HttpBinding.TryCreate()
        internal static bool TryCreate(SecurityBindingElement sbe, TransportBindingElement transport, ReliableSessionBindingElement rsbe, TransactionFlowBindingElement tfbe, out Binding binding) 
        { 
            bool isReliableSession = (rsbe != null);
            binding = null; 

            // reverse GetTransport
            HttpTransportSecurity transportSecurity = WSHttpSecurity.GetDefaultHttpTransportSecurity();
            UnifiedSecurityMode 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; 
                } 
            }
 
            WSHttpSecurity security;
            if (TryCreateSecurity(sbe, mode, transportSecurity, isReliableSession, out security))
            {
                WSHttpBinding wsHttpBinding = new WSHttpBinding(security, isReliableSession); 

                bool allowCookies; 
                if (!TryGetAllowCookiesFromTransport(transport, out allowCookies)) 
                {
                    return false; 
                }

                wsHttpBinding.AllowCookies = allowCookies;
                binding = wsHttpBinding; 
            }
 
            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 == SecurityMode.None || security.Mode == SecurityMode.Message) 
            {
                return this.HttpTransport; 
            } 
            else
            { 
                security.ApplyTransportSecurity(this.HttpsTransport);
                return this.HttpsTransport;
            }
        } 

        internal static bool GetSecurityModeFromTransport(TransportBindingElement transport, HttpTransportSecurity transportSecurity, out UnifiedSecurityMode mode) 
        { 
            mode = UnifiedSecurityMode.None;
            if (transport is HttpsTransportBindingElement) 
            {
                mode = UnifiedSecurityMode.Transport | UnifiedSecurityMode.TransportWithMessageCredential;
                WSHttpSecurity.ApplyTransportSecurity((HttpsTransportBindingElement)transport, transportSecurity);
            } 
            else if (transport is HttpTransportBindingElement)
            { 
                mode = UnifiedSecurityMode.None | UnifiedSecurityMode.Message; 
            }
            else 
            {
                return false;
            }
            return true; 
        }
 
        internal static bool TryGetAllowCookiesFromTransport(TransportBindingElement transport, out bool allowCookies) 
        {
            HttpTransportBindingElement httpTransportBindingElement = transport as HttpTransportBindingElement; 
            if (httpTransportBindingElement == null)
            {
                allowCookies = false;
                return false; 
            }
            else 
            { 
                allowCookies = httpTransportBindingElement.AllowCookies;
                return true; 
            }
        }

        protected override SecurityBindingElement CreateMessageSecurity() 
        {
            return security.CreateMessageSecurity(this.ReliableSession.Enabled, WSMessageSecurityVersion); 
        } 

        // if you make changes here, see also WS2007HttpBinding.TryCreateSecurity() 
        static bool TryCreateSecurity(SecurityBindingElement sbe, UnifiedSecurityMode mode, HttpTransportSecurity transportSecurity, bool isReliableSession, out WSHttpSecurity security)
        {
            if (!WSHttpSecurity.TryCreate(sbe, mode, transportSecurity, isReliableSession, 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); 
        } 
    }
} 

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