如何在ASP.NET Core中返回401而不是302？

当用户未登录时，我正在尝试让ASP.NET Core Identity返回401.我已经为我的方法添加了[Authorize]属性，而不是返回401，它返回302.我试过了一吨建议但似乎没有任何效果，包括services.Configure和app.UseCookieAuthentication将LoginPath设置为null或PathString.Empty 。

Answer 1

从ASP.NET Core 2.x开始 ：

 services.ConfigureApplicationCookie(options => { options.Events.OnRedirectToLogin = context => { context.Response.StatusCode = 401; return Task.CompletedTask; }; }); 

Answer 2

 services.Configure(options => { options.Cookies.ApplicationCookie.LoginPath = new PathString("/"); options.Cookies.ApplicationCookie.Events = new CookieAuthenticationEvents() { OnRedirectToLogin = context => { if (context.Request.Path.Value.StartsWith("/api")) { context.Response.Clear(); context.Response.StatusCode = 401; return Task.FromResult(0); } context.Response.Redirect(context.RedirectUri); return Task.FromResult(0); } }; }); 

资源：

https://www.illucit.com/blog/2016/04/asp-net-5-identity-302-redirect-vs-401-unauthorized-for-api-ajax-requests/

Answer 3

如果请求标头包含X-Requested-With：XMLHttpRequest，则状态代码将为401而不是302

 private static bool IsAjaxRequest(HttpRequest request) { return string.Equals(request.Query["X-Requested-With"], "XMLHttpRequest", StringComparison.Ordinal) || string.Equals(request.Headers["X-Requested-With"], "XMLHttpRequest", StringComparison.Ordinal); } 

请参阅gitHub： https ： //github.com/aspnet/Security/blob/5de25bb11cfb2bf60d05ea2be36e80d86b38d18b/src/Microsoft.AspNetCore.Authentication.Cookies/Events/CookieAuthenticationEvents.cs#L40-L52

Answer 4

对于Asp.net Core 2，请使用此安装程序

 services.ConfigureApplicationCookie(options => { options.LoginPath = new PathString("/Account/Login"); options.LogoutPath = new PathString("/Account/Logout"); options.Events.OnRedirectToLogin = context => { if (context.Request.Path.StartsWithSegments("/api") && context.Response.StatusCode == StatusCodes.Status200OK) { context.Response.Clear(); context.Response.StatusCode = StatusCodes.Status401Unauthorized; return Task.FromResult 

Answer 5

好吧，在深入研究asp.net核心unit testing之后，我终于找到了一个可行的解决方案。 您必须在对services.AddIdentity的调用中添加以下内容

 services.AddIdentity(o => { o.Cookies.ApplicationCookie.AutomaticChallenge = false; });