如何在服务器端使用 SvelteKit 获取 Auth0 中的用户详细信息

How can I get the user details in Auth0 using SvelteKit on the server side

我正在尝试在服务器端使用 SvelteKit 通过 Auth0 服务对用户进行身份验证,但不断收到错误 invalid_tokencannot read properties of undefined

outer {
  error: 'invalid_token',
  errorDescription: "Cannot read properties of undefined (reading 'XMLHttpRequest')"
}

登录端点:

import * as auth0 from "auth0-js";

/** @type {import('@sveltejs/kit').RequestHandler} */
export async function post({ request }) {

        const body = await request.json();
        const hash = body.hash;
        console.log("Sign-in.ts", hash);

        // Initialize the Auth0 application
        var webAuth = new auth0.WebAuth({
            domain: '<domain>',
            clientID: '>clientid>'
        });
        // Parse the URL and extract the Access Token
        webAuth.parseHash({hash: hash, state: "rtre4", nonce: "er324"}, function (err, authResult) {
            if (err) {
                return console.log("outer", err);
            }
            
            webAuth.client.userInfo(authResult.accessToken, function (innerErr, user) {
                // This method will make a request to the /userinfo endpoint
                // and return the user object, which contains the user's information,
                // similar to the response below.
                if (innerErr) {
                    return console.log("inner", innerErr);
                    
                }

                console.log(user);
            });
        });

        return {
            status: 200,
            body: {
                message: "OK"
            }
        };
};

我可以成功登录用户并将用户重定向到我的 /login 路由,访问和 ID 令牌作为 url 中的散列。 接下来我试图获取用户详细信息。我想在服务器中获取用户详细信息,因此我使用 POST 请求将完整的哈希发送到我的 /api/login.ts 端点,并调用 auth0-js 函数 parseHash服务器端点,失败。不过,相同的代码适用于客户端。

着陆页:

<script lang="ts">
    import { onMount } from 'svelte';

    onMount(async () => {
        const hash = window.location.hash;
        const response = await fetch("/api/sign-in", {
                method: "POST",
                headers: {
                    "Content-Type": "application/json"
                },
                body: JSON.stringify({
                    hash: hash
                })
            });
            console.log(response);
    });
</script>
<div class="content">
    <p>Redirecting, please wait...</p>
</div>

因此我认为要么 cookie 在字符串化过程中以某种方式发生了变化,要么 Sveltekit 没有 XmlHttpRequest,但是有人有进一步的见解吗?

感谢 Andreas 的评论,我意识到 XmlHttpRequest 是服务器中不存在的浏览器功能。出于这个原因,我使用从页面获取的令牌实现了对 Auth0 端点的手动请求以获取用户详细信息:

/** @type {import('@sveltejs/kit').RequestHandler} */
export async function post({ request }) {

    /**
     * auth0.WebAuth does not work on server side because it uses XmlHttpRequest, which is unavailable on server
     */
        const body = await request.json();
        const token = body.accessToken;
        const response = await fetch("https://<app Auth0 address>/userinfo", {
            method: "GET",
            headers: { 
                "Content-Type":"application/json",
                "Authorization": `Bearer ${token}`},
        });

        const userData = await response.json();
        console.log(userData);
        };
};

我仍然在 client-side 中调用方法 webAuth.parseHash,其中 auth0.js 有效,因为此方法还会自动验证令牌。验证后,我POST将访问令牌发送到端点。

如果您的 cookie 中有 JWT 令牌,您可以解码 JWT cookie 以获取用户信息 你可以这样做:

import * as cookie from 'cookie';
import Buffer from 'buffer';
export const handle = async ({ event, resolve }) => {

    const cookies = cookie.parse(event.request.headers.get('cookie') || '');
    if(!cookies.id_token) {
       
        return await resolve(event);
    }
    
    const base64Payload = cookies.id_token.split('.')[1];
    const decodedJWTToken = base64Payload ? Buffer.Buffer.from(base64Payload, 'base64') : '';
    event.locals.user = decodedJWTToken ? JSON.parse(decodedJWTToken.toString()) : null

    const response =  await resolve(event);
    return response

};

export function getSession({ locals }) {
    return {
        user: locals.user && {
            nickname: locals.user.nickname ? locals.user.nickname : null,
            email: locals.user.email ? locals.user.email : null,
            sub: locals.user.sub ? locals.user.sub : null,
            email_verified: locals.user.email_verified ? locals.user.email_verified : null,
            picture: locals.user.picture ? locals.user.picture : null,
        }
    };
}