从ADB2C中的自定义策略返回简单的字符串声明 [英] Return simple string claim from custom policies in ADB2C

问题描述

我关注了这篇文章其中说明了如何使用Active Directory B2C实施自定义策略.一切工作正常，我唯一关心的是自定义声明的返回像序列化对象一样.让我更好地解释一下.我成功创建了返回自定义声明的Azure函数.编码后的结果JWT类似于以下内容(请关注" userPermissions "值):

I followed this article where it explains how to implement a custom policy using Active Directory B2C. Everything is working great, the only concern I have is that the custom claim is returned like a serialized object. Let me explain a little bit better. I successfully created the Azure Function which return the custom claim. The encoded resulting JWT is like the following (please focus on the "userPermissions" value):

{
  "exp": 1594560277,
  "nbf": 1594556677,
  "ver": "1.0",
  "auth_time": 1594556677,
  "userPermissions": "{\r\n \"permissions\":\"test1\"\r\n}" <============= HERE
}

如您所见，" userPermissions "声明是序列化JSON".我想拥有一个像以下这样的JWT:

As you can see the "userPermissions" claim is a "serialized JSON". I would like to have a JWT like the following:

{
  "exp": 1594560277,
  "nbf": 1594556677,
  "ver": "1.0",
  "auth_time": 1594556677,
  "userPermissions": "test1" <============ HERE
}

如您所见，"test1"是一个简单的字符串.您可能会想:来吧BrianEnno！这非常简单，而不是返回序列化JSON".您的Azure函数应返回字符串".好吧，如果我尝试返回一个(格式正确的)字符串，则会收到此错误:

As you can see the "test1" is a simple string. You may think: come on BrianEnno! This is very simple, instead of returning a "serialized JSON" your Azure Function should return a "string". Well, if I try to return a (well formed) string I received this error:

ServerError:AADB2C90261:在步骤"4"中指定的声明交换"GetPermissions"返回了无法解析的HTTP错误响应.

ServerError: AADB2C90261: The claims exchange 'GetPermissions' specified in step '4' returned HTTP error response that could not be parsed.

有没有办法让它工作?

推荐答案

using Microsoft.AspNetCore.Mvc;
[HttpGet]
        public async Task<JsonResult> Groups(string objectId)
        { 
            string userPermissions = "test1";
            
            //!!!!!This is the trick if I sent plain json I got the error
            
            JsonResult o = new JsonResult(
                new
                {
                    userPermissions;
                });

            return o;
}  
 

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