static HttpError CreateWebApiError(ErrorResponseContext context)
{
Contract.Requires(context != null);
Contract.Ensures(Contract.Result <HttpError>() != null);
var error = new HttpError();
var root = new HttpError()
{
["Error"] = error
};
if (!IsNullOrEmpty(context.Code))
{
error["Code"] = context.Code;
}
if (!IsNullOrEmpty(context.Message))
{
error.Message = context.Message;
}
if (!IsNullOrEmpty(context.MessageDetail) && context.Request.ShouldIncludeErrorDetail() == true)
{
error["InnerError"] = new HttpError(context.MessageDetail);
}
return(root);
}
/// <summary>
/// Creates the default error content using the given context.
/// </summary>
/// <param name="context">The <see cref="ErrorResponseContext">error context</see> used to create the error content.</param>
/// <returns>A <see cref="HttpError">HTTP error</see> representing the error content.</returns>
protected virtual HttpError CreateErrorContent(ErrorResponseContext context)
{
Arg.NotNull(context, nameof(context));
Contract.Ensures(Contract.Result <HttpError>() != null);
return(IsODataRequest(context) ? CreateODataError(context) : CreateWebApiError(context));
}
static HttpResponseMessage CreateErrorResponse(ErrorResponseContext context, HttpStatusCode statusCode)
{
Contract.Requires(context != null);
Contract.Ensures(Contract.Result <HttpResponseMessage>() != null);
var error = IsODataRequest(context) ? CreateODataError(context) : CreateWebApiError(context);
return(context.Request.CreateErrorResponse(statusCode, error));
}
/// <summary>
/// Creates and returns a new error response given the provided context.
/// </summary>
/// <param name="context">The <see cref="ErrorResponseContext">error context</see> used to generate response.</param>
/// <returns>The generated <see cref="HttpResponseMessage">response</see>.</returns>
public virtual HttpResponseMessage CreateResponse(ErrorResponseContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
return(context.Request.CreateErrorResponse(context.StatusCode, CreateErrorContent(context)));
}
static bool IsODataRequest(ErrorResponseContext context)
{
Contract.Requires(context != null);
var request = context.Request;
var routeValues = request.GetRouteData();
if (routeValues == null)
{
return(false);
}
if (!routeValues.Values.ContainsKey("odataPath"))
{
return(false);
}
return(request.GetConfiguration()?.Formatters.JsonFormatter == null);
}
static HttpError CreateODataError(ErrorResponseContext context)
{
var error = new HttpError();
if (!IsNullOrEmpty(context.ErrorCode))
{
error[HttpErrorKeys.ErrorCodeKey] = context.ErrorCode;
}
if (!IsNullOrEmpty(context.Message))
{
error.Message = context.Message;
}
if (!IsNullOrEmpty(context.MessageDetail) && context.Request.ShouldIncludeErrorDetail() == true)
{
error[HttpErrorKeys.MessageDetailKey] = context.MessageDetail;
}
return(error);
}
static bool IsODataRequest(ErrorResponseContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var request = context.Request;
var routeValues = request.GetRouteData();
if (routeValues == null)
{
return(false);
}
if (!routeValues.Values.ContainsKey("odataPath"))
{
return(false);
}
return(request.GetConfiguration()?.Formatters.JsonFormatter == null);
}
static HttpResponseMessage CreateODataBadRequest(ErrorResponseContext context) => context.Request.CreateErrorResponse(HttpStatusCode.BadRequest, CreateODataError(context));
/// <summary>
/// Creates and returns a new HTTP 405 (Method Not Allowed) given the provided context.
/// </summary>
/// <param name="context">The <see cref="ErrorResponseContext">error context</see> used to generate response.</param>
/// <returns>The generated <see cref="HttpResponseMessage">response</see>.</returns>
public virtual HttpResponseMessage MethodNotAllowed(ErrorResponseContext context)
{
Arg.NotNull(context, nameof(context));
return(CreateErrorResponse(context, HttpStatusCode.MethodNotAllowed));
}
/// <summary>
/// Creates and returns a new HTTP 400 (Bad Request) given the provided context.
/// </summary>
/// <param name="context">The <see cref="ErrorResponseContext">error context</see> used to generate response.</param>
/// <returns>The generated <see cref="HttpResponseMessage">response</see>.</returns>
public virtual HttpResponseMessage BadRequest(ErrorResponseContext context)
{
Arg.NotNull(context, nameof(context));
return(CreateErrorResponse(context, HttpStatusCode.BadRequest));
}
/// <summary>
/// Creates and returns a new error response given the provided context.
/// </summary>
/// <param name="context">The <see cref="ErrorResponseContext">error context</see> used to generate response.</param>
/// <returns>The generated <see cref="HttpResponseMessage">response</see>.</returns>
public virtual HttpResponseMessage CreateResponse(ErrorResponseContext context)
{
Arg.NotNull(context, nameof(context));
return(context.Request.CreateErrorResponse(context.StatusCode, CreateErrorContent(context)));
}
/// <summary> /// Creates the default error content using the given context. /// </summary> /// <param name="context">The <see cref="ErrorResponseContext">error context</see> used to create the error content.</param> /// <returns>A <see cref="HttpError">HTTP error</see> representing the error content.</returns> protected virtual HttpError CreateErrorContent(ErrorResponseContext context) => IsODataRequest(context) ? CreateODataError(context) : CreateWebApiError(context);
