public void ProvideFault(Exception error, MessageVersion version, ref Message fault)
{
WebException webException;
if (error is WebException)
{
webException = (WebException)error;
}
else
{
var behavior = GetWebErrorHandlerConfiguration();
string unhandledErrorMessage;
if (behavior.ReturnRawException)
{
unhandledErrorMessage = error.ToString();
}
else
{
unhandledErrorMessage = (behavior != null && behavior.UnhandledErrorMessage != null) ?
behavior.UnhandledErrorMessage :
"An error has occured processing your request.";
}
webException = new WebException(error,
System.Net.HttpStatusCode.InternalServerError,
unhandledErrorMessage);
}
webException.UpdateHeaders(WebOperationContext.Current.OutgoingResponse.Headers);
WebOperationContext.Current.OutgoingResponse.StatusCode = webException.Status;
WebOperationContext.Current.OutgoingResponse.StatusDescription = webException.Status.ToString();
WebDispatchFormatter webDispatchFormatter = null;
if (OperationContext.Current.OutgoingMessageProperties.ContainsKey(WebDispatchFormatter.WebDispatcherFormatterProperty))
{
webDispatchFormatter = OperationContext.Current.OutgoingMessageProperties[WebDispatchFormatter.WebDispatcherFormatterProperty] as WebDispatchFormatter;
}
if (webDispatchFormatter != null)
{
var behavior = GetWebErrorHandlerConfiguration();
IWebExceptionDataContract exceptionContract = null;
if (behavior != null)
{
exceptionContract = behavior.CreateExceptionDataContract();
}
if (exceptionContract == null)
{
exceptionContract = new WebExceptionContract();
}
exceptionContract.Init(webException);
fault = webDispatchFormatter.Serialize(
exceptionContract,
typeof(WebExceptionContract),
WebOperationContext.Current.IncomingRequest.GetAcceptTypes());
}
else
{
WebOperationContext.Current.OutgoingResponse.ContentType = MediaTypeNames.Text.Html;
fault = Message.CreateMessage(
MessageVersion.None,
null,
new BinaryBodyWriter(GenerateResponseText(webException.Message)));
fault.SetWebContentFormatProperty(WebContentFormat.Raw);
}
fault.UpdateHttpProperty();
if (OperationContainer.Exists())
{
DependencyResolver.Current.OperationError(OperationContainer.GetCurrent(), error);
}
}