在使用MVC时，如何向OWIN中的response_type添加id_token

Question

如何在使用MVC时将id_token添加到OWIN中的response_type？

app.UseGoogleAuthentication(new GoogleOAuth2AuthenticationOptions()
                {
                    ClientId = "my client id",
                    ClientSecret = "my secret",
                    Provider = new GoogleOAuth2AuthenticationProvider
                    {
                        OnApplyRedirect = context =>
                        {
                            Dictionary<string, string> dictionary = new Dictionary<string, string>()
                            {
                                { "response_type", "code id_token" },
                                { "openid.realm", "my realm IP" }
                            };
                            var redirectUri = WebUtilities.AddQueryString(context.RedirectUri, dictionary);
                            context.Response.Redirect(redirectUri);
                        }
                    }

                });

此代码返回错误，因为redirectUri中只包含一个response_type参数。

如何将id_token添加到response_type参数？

仅供参考。这是迁移到OAuth2时需要的，以便引用用户的旧Google ID，因为他们已切换到GUID。

Answer 1

以下是如何做到的......

GoogleOAuth2AuthenticationOptions googleOAuth2AuthenticationOptions = new GoogleOAuth2AuthenticationOptions
            {
                ClientId = "my_clientid",
                ClientSecret = "my_secret",
                Provider = new GoogleOAuth2AuthenticationProvider
                {
                    OnApplyRedirect = context =>
                    {
                        Dictionary<string, string> dictionary = new Dictionary<string, string>()
                        {
                            { "openid.realm", "my realm URL"},
                        };
                        string redirect = context.RedirectUri.Replace("response_type=code", "response_type=code id_token");
                        var redirectUri = WebUtilities.AddQueryString(redirect, dictionary);
                        context.Response.Redirect(redirectUri);
                    },                    

                },
            };