将'hd'参数附加到带有身份标识3的redirectUrl ASP.NET Core 1 [英] Appending 'hd' parameter to redirectUrl ASP.NET Core 1 with Identity 3

问题描述

在带有Identity Framework 2的ASP.NET 4中，我可以使用我自己的参数附加redirectUri，例如Google用来将登录名限制为如下所示的域的"hd"参数:

In ASP.NET 4 with the Identity Framework 2 I can append the redirectUri with a parameter of my own, like the 'hd' parameter Google uses to limit login to a domain like this:

var googleAuthOptions = new GoogleOAuth2AuthenticationOptions
{
    ClientId = "redacted",
    ClientSecret = "redacted",
    Provider = new CustomGoogleProvider
    {
        OnApplyRedirect = context =>
        {
            var redirect = context.RedirectUri;
            redirect += "&hd=contoso.com";
            context.Response.Redirect(redirect);
        }
    }
};

app.UseGoogleAuthentication(googleAuthOptions);

但是我找不到有关如何使用带有Identity Framework 3的新ASP.NET Core 1进行相同操作的文档.

But I'm unable to find documentation on how to do the same thing with the new ASP.NET Core 1 with Identity Framework 3.

推荐答案

在GitHub上的源代码的帮助下，我想出了一个可行的解决方案，非常类似于问题中的解决方案:

What I came up with as a working solution, very much like the one in the question, with the help of the source code on GitHub, is the following:

app.UseGoogleAuthentication(options => {
    options.ClientId = Configuration["Authentication:Google:ClientId"];
    options.ClientSecret = Configuration["Authentication:Google:ClientSecret"];

    options.Events = new OAuthEvents()
    {
        OnRedirectToAuthorizationEndpoint = context =>
        {
            context.Response.Redirect(context.RedirectUri + "&hd=contoso.com");
            return Task.FromResult(0);
        }
    };
});

但这是执行此操作的正确方法，还是有更好的方法?

But is this the correct way to do this, or is there a better way?

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