WSDualHttpBinding.cs source code in C# .NET

                        Code:
                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / WSDualHttpBinding.cs / 1 / WSDualHttpBinding.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 WSDualHttpBinding : Binding, IBindingRuntimePreferences
    { 
        WSMessageEncoding messageEncoding;
        ReliableSession reliableSession; 
        // private BindingElements 
        HttpTransportBindingElement httpTransport;
        TextMessageEncodingBindingElement textEncoding; 
        MtomMessageEncodingBindingElement mtomEncoding;
        TransactionFlowBindingElement txFlow;
        ReliableSessionBindingElement session;
        CompositeDuplexBindingElement compositeDuplex; 
        OneWayBindingElement oneWay;
        WSDualHttpSecurity security = new WSDualHttpSecurity(); 
 
        public WSDualHttpBinding(string configName)
            : this() 
        {
            ApplyConfiguration(configName);
        }
 
        public WSDualHttpBinding(WSDualHttpSecurityMode securityMode)
            : this() 
        { 
            this.security.Mode = securityMode;
        } 

        public WSDualHttpBinding()
        {
            Initialize(); 
        }
 
        WSDualHttpBinding( 
            HttpTransportBindingElement transport,
            MessageEncodingBindingElement encoding, 
            TransactionFlowBindingElement txFlow,
            ReliableSessionBindingElement session,
            CompositeDuplexBindingElement compositeDuplex,
            OneWayBindingElement oneWay, 
            WSDualHttpSecurity security)
            : this() 
        { 
            this.security = security;
            InitializeFrom(transport, encoding, txFlow, session, compositeDuplex, oneWay); 
        }

        public bool BypassProxyOnLocal
        { 
            get { return httpTransport.BypassProxyOnLocal; }
            set { httpTransport.BypassProxyOnLocal = value; } 
        } 

        public Uri ClientBaseAddress 
        {
            get { return this.compositeDuplex.ClientBaseAddress; }
            set { this.compositeDuplex.ClientBaseAddress = value; }
        } 

        public bool TransactionFlow 
        { 
            get { return this.txFlow.Transactions; }
            set { this.txFlow.Transactions = value; } 
        }

        public HostNameComparisonMode HostNameComparisonMode
        { 
            get { return httpTransport.HostNameComparisonMode; }
            set { httpTransport.HostNameComparisonMode = value; } 
        } 

        public long MaxBufferPoolSize 
        {
            get { return httpTransport.MaxBufferPoolSize; }
            set
            { 
                httpTransport.MaxBufferPoolSize = value;
            } 
        } 

        public long MaxReceivedMessageSize 
        {
            get { return httpTransport.MaxReceivedMessageSize; }
            set
            { 
                if (value > int.MaxValue)
                { 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError( 
                        new ArgumentOutOfRangeException("value.MaxReceivedMessageSize",
                        SR.GetString(SR.MaxReceivedMessageSizeMustBeInIntegerRange))); 
                }
                httpTransport.MaxReceivedMessageSize = value;
                mtomEncoding.MaxBufferSize = (int)value;
            } 
        }
 
        public WSMessageEncoding MessageEncoding 
        {
            get { return messageEncoding; } 
            set { messageEncoding = value; }
        }

        public Uri ProxyAddress 
        {
            get { return httpTransport.ProxyAddress; } 
            set { httpTransport.ProxyAddress = value; } 
        }
 
        public XmlDictionaryReaderQuotas ReaderQuotas
        {
            get { return textEncoding.ReaderQuotas; }
            set 
            {
                if (value == null) 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value"); 
                value.CopyTo(textEncoding.ReaderQuotas);
                value.CopyTo(mtomEncoding.ReaderQuotas); 
            }
        }

        public ReliableSession ReliableSession { get { return reliableSession; } } 

        public override string Scheme { get { return httpTransport.Scheme; } } 
 
        public EnvelopeVersion EnvelopeVersion
        { 
            get { return EnvelopeVersion.Soap12; }
        }

        public System.Text.Encoding TextEncoding 
        {
            get { return textEncoding.WriteEncoding; } 
            set 
            {
                textEncoding.WriteEncoding = value; 
                mtomEncoding.WriteEncoding = value;
            }
        }
 
        public bool UseDefaultWebProxy
        { 
            get { return httpTransport.UseDefaultWebProxy; } 
            set { httpTransport.UseDefaultWebProxy = value; }
        } 

        public WSDualHttpSecurity Security
        {
            get { return this.security; } 
        }
 
        bool IBindingRuntimePreferences.ReceiveSynchronously 
        {
            get { return false; } 
        }

        static TransactionFlowBindingElement GetDefaultTransactionFlowBindingElement()
        { 
            TransactionFlowBindingElement tfbe = new TransactionFlowBindingElement(false);
            tfbe.TransactionProtocol = TransactionProtocol.WSAtomicTransactionOctober2004; 
            return tfbe; 
        }
 
        void Initialize()
        {
            this.httpTransport = new HttpTransportBindingElement();
            this.messageEncoding = WSDualHttpBindingDefaults.MessageEncoding; 
            this.txFlow = GetDefaultTransactionFlowBindingElement();
            this.session = new ReliableSessionBindingElement(true); 
            this.textEncoding = new TextMessageEncodingBindingElement(); 
            this.textEncoding.MessageVersion = MessageVersion.Soap12WSAddressing10;
            this.mtomEncoding = new MtomMessageEncodingBindingElement(); 
            this.mtomEncoding.MessageVersion = MessageVersion.Soap12WSAddressing10;
            this.compositeDuplex = new CompositeDuplexBindingElement();
            this.reliableSession = new ReliableSession(session);
            this.oneWay = new OneWayBindingElement(); 
        }
 
        void InitializeFrom( 
            HttpTransportBindingElement transport,
            MessageEncodingBindingElement encoding, 
            TransactionFlowBindingElement txFlow,
            ReliableSessionBindingElement session,
            CompositeDuplexBindingElement compositeDuplex,
            OneWayBindingElement oneWay) 
        {
            // transport 
            this.BypassProxyOnLocal = transport.BypassProxyOnLocal; 
            this.HostNameComparisonMode = transport.HostNameComparisonMode;
            this.MaxBufferPoolSize = transport.MaxBufferPoolSize; 
            this.MaxReceivedMessageSize = transport.MaxReceivedMessageSize;
            this.ProxyAddress = transport.ProxyAddress;
            this.UseDefaultWebProxy = transport.UseDefaultWebProxy;
 
            // this binding only supports Text and Mtom encoding
            if (encoding is TextMessageEncodingBindingElement) 
            { 
                this.MessageEncoding = WSMessageEncoding.Text;
                TextMessageEncodingBindingElement text = (TextMessageEncodingBindingElement)encoding; 
                this.TextEncoding = text.WriteEncoding;
                this.ReaderQuotas = text.ReaderQuotas;

            } 
            else if (encoding is MtomMessageEncodingBindingElement)
            { 
                messageEncoding = WSMessageEncoding.Mtom; 
                MtomMessageEncodingBindingElement mtom = (MtomMessageEncodingBindingElement)encoding;
                this.TextEncoding = mtom.WriteEncoding; 
                this.ReaderQuotas = mtom.ReaderQuotas;
            }
            this.TransactionFlow = txFlow.Transactions;
            this.ClientBaseAddress = compositeDuplex.ClientBaseAddress; 

            //session 
            if (session != null) 
            {
                // only set properties that have standard binding manifestations 
                this.session.InactivityTimeout = session.InactivityTimeout;
                this.session.Ordered = session.Ordered;
            }
        } 

        // check that properties of the HttpTransportBindingElement and 
        // MessageEncodingBindingElement not exposed as properties on WsHttpBinding 
        // match default values of the binding elements
        bool IsBindingElementsMatch(HttpTransportBindingElement transport, 
            MessageEncodingBindingElement encoding,
            TransactionFlowBindingElement txFlow,
            ReliableSessionBindingElement session,
            CompositeDuplexBindingElement compositeDuplex, 
            OneWayBindingElement oneWay)
        { 
            if (!this.httpTransport.IsMatch(transport)) 
                return false;
 
            if (this.MessageEncoding == WSMessageEncoding.Text)
            {
                if (!this.textEncoding.IsMatch(encoding))
                    return false; 
            }
            else if (this.MessageEncoding == WSMessageEncoding.Mtom) 
            { 
                if (!this.mtomEncoding.IsMatch(encoding))
                    return false; 
            }
            if (!this.txFlow.IsMatch(txFlow))
                return false;
            if (!this.session.IsMatch(session)) 
                return false;
            if (!this.compositeDuplex.IsMatch(compositeDuplex)) 
                return false; 

            if (!this.oneWay.IsMatch(oneWay)) 
            {
                return false;
            }
 
            return true;
        } 
 
        void ApplyConfiguration(string configurationName)
        { 
            WSDualHttpBindingCollectionElement section = WSDualHttpBindingCollectionElement.GetBindingCollectionElement();
            WSDualHttpBindingElement element = section.Bindings[configurationName];
            if (element == null)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ConfigurationErrorsException(
                    SR.GetString(SR.ConfigInvalidBindingConfigurationName, 
                                 configurationName, 
                                 ConfigurationStrings.WSDualHttpBindingCollectionElementName)));
            } 
            else
            {
                element.ApplyConfiguration(this);
            } 
        }
 
        SecurityBindingElement CreateMessageSecurity() 
        {
            return this.Security.CreateMessageSecurity(); 
        }

        static bool TryCreateSecurity(SecurityBindingElement securityElement, out WSDualHttpSecurity security)
        { 
            return WSDualHttpSecurity.TryCreate(securityElement, out security);
        } 
 
        public override BindingElementCollection CreateBindingElements()
        {   // return collection of BindingElements 
            BindingElementCollection bindingElements = new BindingElementCollection();
            // order of BindingElements is important
            // add context
            bindingElements.Add(txFlow); 
            // add session
            bindingElements.Add(session); 
            // add security (optional) 
            SecurityBindingElement wsSecurity = CreateMessageSecurity();
            if (wsSecurity != null) 
            {
                bindingElements.Add(wsSecurity);
            }
 
            // add duplex
            bindingElements.Add(compositeDuplex); 
 
            // add oneWay adapter
            bindingElements.Add(oneWay); 

            // add encoding (text or mtom)
            WSMessageEncodingHelper.SyncUpEncodingBindingElementProperties(textEncoding, mtomEncoding);
            if (this.MessageEncoding == WSMessageEncoding.Text) 
            {
                bindingElements.Add(textEncoding); 
            } 
            else if (this.MessageEncoding == WSMessageEncoding.Mtom)
            { 
                bindingElements.Add(mtomEncoding);
            }

            // add transport 
            bindingElements.Add(httpTransport);
 
            return bindingElements.Clone(); 
        }
 
        internal static bool TryCreate(BindingElementCollection elements, out Binding binding)
        {
            binding = null;
            if (elements.Count > 7) 
            {
                return false; 
            } 

            SecurityBindingElement sbe = null; 
            HttpTransportBindingElement transport = null;
            MessageEncodingBindingElement encoding = null;
            TransactionFlowBindingElement txFlow = null;
            ReliableSessionBindingElement session = null; 
            CompositeDuplexBindingElement compositeDuplex = null;
            OneWayBindingElement oneWay = null; 
 
            foreach (BindingElement element in elements)
            { 
                if (element is SecurityBindingElement)
                {
                    sbe = element as SecurityBindingElement;
                } 
                else if (element is TransportBindingElement)
                { 
                    transport = element as HttpTransportBindingElement; 
                }
                else if (element is MessageEncodingBindingElement) 
                {
                    encoding = element as MessageEncodingBindingElement;
                }
                else if (element is TransactionFlowBindingElement) 
                {
                    txFlow = element as TransactionFlowBindingElement; 
                } 
                else if (element is ReliableSessionBindingElement)
                { 
                    session = element as ReliableSessionBindingElement;
                }
                else if (element is CompositeDuplexBindingElement)
                { 
                    compositeDuplex = element as CompositeDuplexBindingElement;
                } 
                else if (element is OneWayBindingElement) 
                {
                    oneWay = element as OneWayBindingElement; 
                }
                else
                {
                    return false; 
                }
            } 
 
            if (transport == null)
            { 
                return false;
            }

            if (encoding == null) 
            {
                return false; 
            } 

            // this binding only supports Soap12 
            if (!encoding.CheckEncodingVersion(EnvelopeVersion.Soap12))
            {
                return false;
            } 

            if (compositeDuplex == null) 
            { 
                return false;
            } 

            if (oneWay == null)
            {
                return false; 
            }
 
            if (session == null) 
            {
                return false; 
            }

            if (txFlow == null)
            { 
                txFlow = GetDefaultTransactionFlowBindingElement();
            } 
 
            WSDualHttpSecurity security;
            if (!TryCreateSecurity(sbe, out security)) 
                return false;

            WSDualHttpBinding wSDualHttpBinding =
                new WSDualHttpBinding(transport, encoding, txFlow, session, compositeDuplex, oneWay, security); 

            if (!wSDualHttpBinding.IsBindingElementsMatch(transport, encoding, txFlow, session, compositeDuplex, oneWay)) 
            { 
                return false;
            } 

            binding = wSDualHttpBinding;
            return true;
        } 
    }
} 

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

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