c# - 如何在 ASP.NET Core 中返回 403 Forbidden 响应作为 IActionResult

Question

我想在尝试执行无效操作时向客户端返回 403 Forbidden。我需要使用什么方法？

我在互联网上搜索过，但只找到了 MVC 5 的这些:

If the return type for your web api method is HttpResponseMessage then you need to use the below code:

return Request.CreateErrorResponse(HttpStatusCode.Forbidden, "RFID is disabled for this site.");
Or  if the return type for your web api method is IHttpActionResult then you need to use the below code

return StatusCode(HttpStatusCode.Forbidden,"RFID is disabled for this site.");

How to return 403 for IActionResult type:

public IActionResult Put(string userid, [FromBody]Setting setting)
 {
    var result = _SettingsRepository.Update(userid, setting);
    if (result == true)
    {
       return Ok(201);
    }
    else
    {
       return BadRequest();
    }
 }

Answer 1

当您想要响应 HTTP 403 状态并允许 ASP.NET Core 的身份验证逻辑使用其禁止的处理逻辑来处理响应时(可以在您的启动 类，并可能导致重定向到另一个页面)，使用:

return Forbid();

(同样适用于 Unauthorized())

---

当您想使用来自 API 的 HTTP 403 状态代码进行响应并且不希望 ASP.NET Core 身份验证逻辑执行任何重定向或其他操作时，请使用:

return StatusCode(403);

// or with developer-friendly type
return StatusCode(StatusCodes.Status403Forbidden);

// or as an api-friendly error response
return Problem(
    type: "/docs/errors/forbidden",
    title: "Authenticated user is not authorized.",
    detail: $"User '{user}' must have the Admin role.",
    statusCode: StatusCodes.Status403Forbidden,
    instance: HttpContext.Request.Path
);

后一个例子产生一个 client error response .