如何将AzureAD和AzureADBearer添加到ASP.NET Core 2.2 Web API [英] How to add AzureAD AND AzureADBearer to asp.net core 2.2 web api

问题描述

我正在尝试编写一个网站，该网站使用AzureAD对用户进行身份验证以访问UI来编写数据库中的项目.而且我还希望其他服务可以通过承载令牌来调用此API.

I'm trying to author a website that uses AzureAD to authenticate users to access UIs to author items in a DB. And I also want this API to be callable by other services via a bearer token.

services.AddAuthentication(o => {
                    o.DefaultScheme = AzureADDefaults.BearerAuthenticationScheme;
                    o.DefaultAuthenticateScheme = AzureADDefaults.AuthenticationScheme;
                })
                .AddAzureAD(options => Configuration.Bind("AzureAd", options))
                .AddAzureADBearer(options => Configuration.Bind("AzureAd", options));

我希望使用AzureAD方案对用户进行身份验证，但是对同一WEB API(在dif路由下)的服务要由承载者进行身份验证.或同时拥有所有路线.都可以

I want users to be authenticated using the AzureAD scheme, but services to the same WEB API (under a dif route) to be authenticated by the bearer. Or have all routes except both. Either works

推荐答案

最后通过创建一个策略方案来解决此问题，该策略方案根据存在的auth标头在两种模式之间切换:

ended up solving this by creating a policy scheme which toggles between the two schemas depending on the auth header present:

// add azure ad user and service authentication
            services
                .AddAuthentication("Azures")
                .AddPolicyScheme("Azures", "Authorize AzureAd or AzureAdBearer", options =>
                {
                    options.ForwardDefaultSelector = context =>
                    {
                        var authHeader = context.Request.Headers["Authorization"].FirstOrDefault();
                        if (authHeader?.StartsWith("Bearer") == true)
                        {
                            return AzureADDefaults.JwtBearerAuthenticationScheme;
                        }

                        return AzureADDefaults.AuthenticationScheme;
                    };
                })
                .AddAzureADBearer(options => config.Bind("AzureAdBearer", options))
                .AddAzureAD(options => config.Bind("AzureAd", options));

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