【发布时间】:2021-10-05 10:14:19
【问题描述】:
我正在使用用户名和密码保护静态网站。我在 NodeJS 中使用 Lambda@Edge 为 CloudFront 创建了一个基本的 HTTP 身份验证。
我对 NodeJS 完全陌生。最初,我对用户和密码进行了硬编码,并且工作正常。
'use strict';
exports.handler = (event, context, callback) => {
// Get request and request headers
const request = event.Records[0].cf.request;
const headers = request.headers;
// Configure authentication
const authUser = 'user';
const authPass = 'pass';
// Construct the Basic Auth string
const authString = 'Basic ' + new Buffer(authUser + ':' + authPass).toString('base64');
// Require Basic authentication
if (typeof headers.authorization == 'undefined' || headers.authorization[0].value != authString) {
const body = 'Unauthorized';
const response = {
status: '401',
statusDescription: 'Unauthorized',
body: body,
headers: {
'www-authenticate': [{key: 'WWW-Authenticate', value:'Basic'}]
},
};
callback(null, response);
}
// Continue request processing if authentication passed
callback(null, request);
};
我将我的秘密存储在 SSM 中,我想通过该函数检索它们。我在 Lambda 中单独测试了这段代码,它按预期返回了凭据。
'use strict';
exports.handler = async (event, context, callback) => {
const ssm = new (require('aws-sdk/clients/ssm'))();
let userData = await ssm.getParameters({Names: ['website-user']}).promise();
let userPass = await ssm.getParameters({Names: ['website-pass']}).promise();
let user = userData.Parameters[0].Value;
let pass = userPass.Parameters[0].Value;
return {user, pass};
};
但是当我将两者缝合时,我得到 503 ERROR The request could not be compatible。 有谁知道我可能做错了什么?感谢您的帮助!
完整代码:
'use strict';
exports.handler = async (event, context, callback) => {
const ssm = new (require('aws-sdk/clients/ssm'))();
let userData = await ssm.getParameters({Names: ['website-user']}).promise();
let userPass = await ssm.getParameters({Names: ['website-pass']}).promise();
let user = userData.Parameters[0].Value;
let pass = userPass.Parameters[0].Value;
// Get request and request headers
const request = event.Records[0].cf.request;
const headers = request.headers;
// Construct the Basic Auth string
let authString = 'Basic ' + new Buffer(user + ':' + pass).toString('base64');
// Require Basic authentication
if (typeof headers.authorization == 'undefined' || headers.authorization[0].value != authString) {
const body = 'Unauthorized';
const response = {
status: '401',
statusDescription: 'Unauthorized',
body: body,
headers: {
'www-authenticate': [{key: 'WWW-Authenticate', value:'Basic'}]
},
};
callback(null, response);
}
// Continue request processing if authentication passed
callback(null, request);
};
【问题讨论】:
-
我认为你不能同时使用
async和callback。如果您执行return response或return request会发生什么? -
感谢您的共鸣!我尝试用
return response和return request替换callback,但我仍然遇到同样的错误。 -
@Jens 你把我推向了正确的方向,我修正了我的错误。我会发布解决方案作为答案。
标签: node.js amazon-web-services aws-lambda amazon-cloudfront aws-lambda-edge