WebScriptClientGenerator.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / NetFx35 / System.ServiceModel.Web / System / ServiceModel / Description / WebScriptClientGenerator.cs / 1 / WebScriptClientGenerator.cs

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

namespace System.ServiceModel.Description 
{
    using System; 
    using System.Collections.Generic; 
    using System.Globalization;
    using System.ServiceModel.Channels; 
    using System.Xml;
    using System.Net;
    using System.Web;
    using System.Web.Script.Services; 
    using System.Runtime.Serialization.Json;
 
    class WebScriptClientGenerator : ServiceMetadataExtension.IHttpGetMetadata 
    {
        internal const string DebugMetadataEndpointSuffix = "jsdebug"; 
        internal const string MetadataEndpointSuffix = "js";
        bool debugMode;
        ServiceEndpoint endpoint;
        string proxyContent; 
        DateTime serviceLastModified;
        string serviceLastModifiedRfc1123String; 
 
        public WebScriptClientGenerator(ServiceEndpoint endpoint, bool debugMode)
        { 
            this.endpoint = endpoint;
            this.debugMode = debugMode;
            // The service host is automatically restarted every time a service or any of its dependencies change
            // A restart adds all the behaviors from scratch. 
            // => WebScriptEnablingBehavior plugs in this contract for the "/js" endpoint afresh if the service changes.
            this.serviceLastModified = DateTime.UtcNow; 
            // Zero out all millisecond and sub-millisecond information because RFC1123 doesn't support milliseconds. 
            // => The parsed If-Modified-Since date, against which serviceLastModified will need to be compared,
            //    won't have milliseconds. 
            this.serviceLastModified = new DateTime(this.serviceLastModified.Year, this.serviceLastModified.Month, this.serviceLastModified.Day, this.serviceLastModified.Hour, this.serviceLastModified.Minute, this.serviceLastModified.Second, DateTimeKind.Utc);
        }

        string ProxyContent 
        {
            get 
            { 
                if (proxyContent == null)
                { 
                    proxyContent = ProxyGenerator.GetClientProxyScript(this.endpoint.Contract.ContractType, this.endpoint.Address.Uri.PathAndQuery, this.debugMode);
                }
                return proxyContent;
            } 
        }
 
        string ServiceLastModifiedRfc1123String 
        {
            get 
            {
                if (serviceLastModifiedRfc1123String == null)
                {
                    // "R" for RFC1123. The HTTP standard requires that dates be serialized according to RFC1123. 
                    serviceLastModifiedRfc1123String = serviceLastModified.ToString("R", DateTimeFormatInfo.InvariantInfo);
                } 
                return serviceLastModifiedRfc1123String; 
            }
        } 

        public Message Get(Message message)
        {
            HttpRequestMessageProperty requestMessageProperty = (HttpRequestMessageProperty) message.Properties[HttpRequestMessageProperty.Name]; 
            HttpResponseMessageProperty responseMessageProperty = new HttpResponseMessageProperty();
 
            if ((requestMessageProperty != null) && IsServiceUnchanged(requestMessageProperty.Headers[JsonGlobals.IfModifiedSinceString])) 
            {
                Message responseMessage = Message.CreateMessage(MessageVersion.None, string.Empty); 
                responseMessageProperty.StatusCode = HttpStatusCode.NotModified;
                responseMessage.Properties.Add(HttpResponseMessageProperty.Name, responseMessageProperty);
                return responseMessage;
            } 

 
            Message response = new WebScriptMetadataMessage(string.Empty, ProxyContent); 
            responseMessageProperty.Headers.Add(JsonGlobals.LastModifiedString, ServiceLastModifiedRfc1123String);
            responseMessageProperty.Headers.Add(JsonGlobals.ExpiresString, ServiceLastModifiedRfc1123String); 
            if (ServiceHostingEnvironment.AspNetCompatibilityEnabled)
            {
                HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.Public);
            } 
            else
            { 
                responseMessageProperty.Headers.Add(JsonGlobals.CacheControlString, JsonGlobals.publicString); 
            }
            response.Properties.Add(HttpResponseMessageProperty.Name, responseMessageProperty); 
            return response;
        }

        internal static string GetMetadataEndpointSuffix(bool debugMode) 
        {
            if (debugMode) 
            { 
                return DebugMetadataEndpointSuffix;
            } 
            else
            {
                return MetadataEndpointSuffix;
            } 
        }
 
        bool IsServiceUnchanged(string ifModifiedSinceHeaderValue) 
        {
            if (string.IsNullOrEmpty(ifModifiedSinceHeaderValue)) 
            {
                return false;
            }
 
            DateTime ifModifiedSinceDateTime;
            if (DateTime.TryParse(ifModifiedSinceHeaderValue, DateTimeFormatInfo.InvariantInfo, DateTimeStyles.AdjustToUniversal, out ifModifiedSinceDateTime)) 
            { 
                return (ifModifiedSinceDateTime >= serviceLastModified);
            } 

            return false;
        }
    } 
}

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

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