ASP.NET - Facebook 注册 - api/Account/UserInfo - Email 返回 ZD85544FCE402C7A2A96A4807 姓名和姓氏

Question

我正在 Web 应用程序 + Web API 应用程序在 Z9E0DA8438E1E38A1C30F4B767ZCE 上。 我正在使用 JavaScript 文件，单击按钮后，获取用户的访问令牌，检查用户是否已注册，如果没有，则在数据库中注册用户。 代码如下所示：

/// <reference path="jquery-3.5.1.min.js" />
function getAccessToken() {
    if (location.hash) {
        if (location.hash.split('access_token=')) {
            var accessToken = location.hash.split('access_token=')[1].split('&')[0];
            if (accessToken) {
                isUserRegistered(accessToken);
            }
        }
    }
}

function isUserRegistered(accessToken) {
    debugger;
    $.ajax({
        url: 'https://localhost:44326/api/Account/UserInfo',
        method: 'GET',
        headers: {
            'content-type': 'application/JSON',
            'Authorization': 'Bearer ' + accessToken
        },
        success: function (response) {
            debugger;
            if (response.hasRegistered) {
                localStorage.setItem('accessToken', accessToken);
                localStorage.setItem('userName', response.Email);
                window.location.href = '/';
            }
            else {
                signupExternalUser(accessToken, response.LoginProvider);
            }    
        }
    });
}

function signupExternalUser(accessToken, provider) {
    $.ajax({
        url: 'https://localhost:44326/api/Account/RegisterExternal',
        method: 'POST',
        headers: {
            'content-type': 'application/JSON',
            'Authorization': 'Bearer ' + accessToken
        },
        success: function () {
            window.location.href = "https://localhost:44326/api/Account/ExternalLogin?provider="+provider+"&response_type=token&client_id=self&redirect_uri=https%3A%2F%2Flocalhost%3A44314%2FHome%2FIndex&state=JGoUcmqMeq2WAYFXlxD22P1-kiOSzzx1gXGBziB4yFs1";
        }
    });
}

现在，在方法 isUserRegistered() 中，我使用的是 response.Email，它应该是正在登录的 facebook 帐户的 email。 但是，这将返回 facebook 帐户的姓名和姓氏。 请问我做错了什么？

其他一些代码： GetUserInfo 方法：

public UserInfoViewModel GetUserInfo()
{
    ExternalLoginData externalLogin = ExternalLoginData.FromIdentity(User.Identity as ClaimsIdentity);

    return new UserInfoViewModel
    {
        Email = User.Identity.GetUserName(),
        HasRegistered = externalLogin == null,
        LoginProvider = externalLogin != null ? externalLogin.LoginProvider : null
    };
}

调用 JS 文件的 Index.cshtml：

@{
    ViewBag.Title = "Home Page";
}

<div class="jumbotron">
    <h1>ASP.NET</h1>
    <p class="lead">ASP.NET is a free web framework for building great Web sites and Web applications using HTML, CSS and JavaScript.</p>
    <p><a href="https://asp.net" class="btn btn-primary btn-lg">Learn more &raquo;</a></p>
</div>

<div class="row">
    <div class="col-md-4">
        <h2>Getting started</h2>
        <p>
        ASP.NET MVC gives you a powerful, patterns-based way to build dynamic websites that
        enables a clean separation of concerns and gives you full control over markup
        for enjoyable, agile development.
        </p>
        <p><a class="btn btn-default" href="https://go.microsoft.com/fwlink/?LinkId=301865">Learn more &raquo;</a></p>
    </div>
    <div class="col-md-4">
        <h2>Get more libraries</h2>
        <p>NuGet is a free Visual Studio extension that makes it easy to add, remove, and update libraries and tools in Visual Studio projects.</p>
        <p><a class="btn btn-default" href="https://go.microsoft.com/fwlink/?LinkId=301866">Learn more &raquo;</a></p>
    </div>
    <div class="col-md-4">
        <h2>Web Hosting</h2>
        <p>You can easily find a web hosting company that offers the right mix of features and price for your applications.</p>
        <p><a class="btn btn-default" href="https://go.microsoft.com/fwlink/?LinkId=301867">Learn more &raquo;</a></p>
    </div>
</div>

<input typ="button" id="btnFacebookLogin" value="Login with Facebook" class="btn btn-success" />

<script src="~/Scripts/jquery-3.5.1.min.js"></script>
<script src="~/Scripts/FacebookAuthentication.js"></script>
<script>
    $(document).ready(function () {
        getAccessToken();

        $('#btnFacebookLogin').click(function () {
            window.location.href = "https://localhost:44326/api/Account/ExternalLogin?provider=Facebook&response_type=token&client_id=self&redirect_uri=https%3A%2F%2Flocalhost%3A44314%2FHome%2FIndex&state=XMhOW6zGwxhvrUhB0g0to-n2HF0ylwmvFLrX7Nf2Ffo1";
        })
    })
</script>