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RedirectToPageResultExecutor.cs
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/
RedirectToPageResultExecutor.cs
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// 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 System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc.Core;
using Microsoft.AspNetCore.Mvc.Internal;
using Microsoft.AspNetCore.Mvc.Routing;
using Microsoft.Extensions.Logging;
using Microsoft.Net.Http.Headers;
namespace Microsoft.AspNetCore.Mvc.Infrastructure
{
public class RedirectToPageResultExecutor : IActionResultExecutor<RedirectToPageResult>
{
private readonly ILogger _logger;
private readonly IUrlHelperFactory _urlHelperFactory;
public RedirectToPageResultExecutor(ILoggerFactory loggerFactory, IUrlHelperFactory urlHelperFactory)
{
if (loggerFactory == null)
{
throw new ArgumentNullException(nameof(loggerFactory));
}
if (urlHelperFactory == null)
{
throw new ArgumentNullException(nameof(urlHelperFactory));
}
_logger = loggerFactory.CreateLogger<RedirectToRouteResult>();
_urlHelperFactory = urlHelperFactory;
}
/// <inheritdoc />
public virtual Task ExecuteAsync(ActionContext context, RedirectToPageResult result)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (result == null)
{
throw new ArgumentNullException(nameof(result));
}
var urlHelper = result.UrlHelper ?? _urlHelperFactory.GetUrlHelper(context);
var destinationUrl = urlHelper.Page(
result.PageName,
result.PageHandler,
result.RouteValues,
result.Protocol,
result.Host,
fragment: result.Fragment);
if (string.IsNullOrEmpty(destinationUrl))
{
throw new InvalidOperationException(Resources.FormatNoRoutesMatchedForPage(result.PageName));
}
_logger.RedirectToPageResultExecuting(result.PageName);
if (result.PreserveMethod)
{
context.HttpContext.Response.StatusCode = result.Permanent ?
StatusCodes.Status308PermanentRedirect : StatusCodes.Status307TemporaryRedirect;
context.HttpContext.Response.Headers[HeaderNames.Location] = destinationUrl;
}
else
{
context.HttpContext.Response.Redirect(destinationUrl, result.Permanent);
}
return Task.CompletedTask;
}
}
}