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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
#pragma warning disable 1634, 1691
namespace System.ServiceModel.Dispatcher
{
using System.Net;
using System.Linq;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.ServiceModel.Web;
using System.Web;
using System.ServiceModel.Description;
using System.Diagnostics;
using System.ServiceModel.Diagnostics;
class JavascriptCallbackMessageInspector : IDispatchMessageInspector
{
internal static readonly string applicationJavaScriptMediaType = "application/x-javascript";
public JavascriptCallbackMessageInspector(string callbackParameterName)
{
this.CallbackParameterName = callbackParameterName;
if (DiagnosticUtility.ShouldTraceInformation)
{
TraceUtility.TraceEvent(TraceEventType.Information, TraceCode.JsonpCallbackNameSet, SR2.GetString(SR2.TraceCodeJsonpCallbackNameSet, callbackParameterName));
}
}
string CallbackParameterName { get; set; }
public object AfterReceiveRequest(ref Message request, IClientChannel channel, InstanceContext instanceContext)
{
if (HttpContext.Current != null &&
HttpContext.Current.User != null &&
HttpContext.Current.User.Identity != null &&
HttpContext.Current.User.Identity.IsAuthenticated)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException(SR2.CrossDomainJavascriptAuthNotSupported));
}
return null;
}
public void BeforeSendReply(ref Message reply, object correlationState)
{
WebBodyFormatMessageProperty formatProperty;
JavascriptCallbackResponseMessageProperty javascriptCallbackResponseMessageProperty = null;
if (reply.Properties.TryGetValue<WebBodyFormatMessageProperty>(WebBodyFormatMessageProperty.Name, out formatProperty) &&
formatProperty != null &&
formatProperty.Format == WebContentFormat.Json)
{
if (!reply.Properties.TryGetValue<JavascriptCallbackResponseMessageProperty>(JavascriptCallbackResponseMessageProperty.Name, out javascriptCallbackResponseMessageProperty)
|| javascriptCallbackResponseMessageProperty == null)
{
javascriptCallbackResponseMessageProperty = WebHttpBehavior.TrySetupJavascriptCallback(this.CallbackParameterName);
if (javascriptCallbackResponseMessageProperty != null)
{
reply.Properties.Add(JavascriptCallbackResponseMessageProperty.Name, javascriptCallbackResponseMessageProperty);
}
}
if (javascriptCallbackResponseMessageProperty != null)
{
HttpResponseMessageProperty property;
if (reply.Properties.TryGetValue<HttpResponseMessageProperty>(HttpResponseMessageProperty.Name, out property) &&
property != null)
{
property.Headers[HttpResponseHeader.ContentType] = applicationJavaScriptMediaType;
if (javascriptCallbackResponseMessageProperty.StatusCode == null)
{
javascriptCallbackResponseMessageProperty.StatusCode = property.StatusCode;
}
property.StatusCode = HttpStatusCode.OK;
if (property.SuppressEntityBody)
{
property.SuppressEntityBody = false;
Message nullJsonMessage = WebOperationContext.Current.CreateJsonResponse<object>(null);
nullJsonMessage.Properties.CopyProperties(reply.Properties);
reply = nullJsonMessage;
}
}
}
}
}
}
}
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