aspnetcore/src/Microsoft.AspNetCore.Mvc.Core/AcceptedAtRouteResult.cs

95 lines
3.4 KiB
C#

// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc.Core;
using Microsoft.AspNetCore.Routing;
using Microsoft.AspNetCore.Mvc.Routing;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Net.Http.Headers;
using Microsoft.AspNetCore.Mvc.Infrastructure;
namespace Microsoft.AspNetCore.Mvc
{
/// <summary>
/// An <see cref="ActionResult"/> that returns a Accepted (202) response with a Location header.
/// </summary>
[DefaultStatusCode(DefaultStatusCode)]
public class AcceptedAtRouteResult : ObjectResult
{
private const int DefaultStatusCode = StatusCodes.Status202Accepted;
/// <summary>
/// Initializes a new instance of the <see cref="AcceptedAtRouteResult"/> class with the values
/// provided.
/// </summary>
/// <param name="routeValues">The route data to use for generating the URL.</param>
/// <param name="value">The value to format in the entity body.</param>
public AcceptedAtRouteResult(object routeValues, object value)
: this(routeName: null, routeValues: routeValues, value: value)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="AcceptedAtRouteResult"/> class with the values
/// provided.
/// </summary>
/// <param name="routeName">The name of the route to use for generating the URL.</param>
/// <param name="routeValues">The route data to use for generating the URL.</param>
/// <param name="value">The value to format in the entity body.</param>
public AcceptedAtRouteResult(
string routeName,
object routeValues,
object value)
: base(value)
{
RouteName = routeName;
RouteValues = routeValues == null ? null : new RouteValueDictionary(routeValues);
StatusCode = DefaultStatusCode;
}
/// <summary>
/// Gets or sets the <see cref="IUrlHelper" /> used to generate URLs.
/// </summary>
public IUrlHelper UrlHelper { get; set; }
/// <summary>
/// Gets or sets the name of the route to use for generating the URL.
/// </summary>
public string RouteName { get; set; }
/// <summary>
/// Gets or sets the route data to use for generating the URL.
/// </summary>
public RouteValueDictionary RouteValues { get; set; }
/// <inheritdoc />
public override void OnFormatting(ActionContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
base.OnFormatting(context);
var urlHelper = UrlHelper;
if (urlHelper == null)
{
var services = context.HttpContext.RequestServices;
urlHelper = services.GetRequiredService<IUrlHelperFactory>().GetUrlHelper(context);
}
var url = urlHelper.Link(RouteName, RouteValues);
if (string.IsNullOrEmpty(url))
{
throw new InvalidOperationException(Resources.NoRoutesMatched);
}
context.HttpContext.Response.Headers[HeaderNames.Location] = url;
}
}
}