来自具有HTTP基本身份验证(node.js)的应用程序的GET请求 [英] GET request from app with http basic authentication (node.js)

问题描述

我有一个nodejs应用，该应用在express.js中使用http基本身份验证.

I have an nodejs app which use the http basic authentication in express.js.

在此应用中，我向外部网页发出http.get请求以加载和解析html.

In this app I make an http.get request to an external webpage to load and parse the html.

通过基本身份验证，我在向外部主机发出的每个 http.get(url，function(){})请求中得到一个错误:未经授权".如果我删除了基本身份验证，则可以正常工作.

With the basic auth I get in each http.get(url, function(){}) request to the external host an error: "Unauthorized". If I remove the basic authentication, it works fine.

有人知道，为什么只有我自己的服务器具有此身份验证，我才能在公共资源上未经授权?

Anybody know's why I'm Unauthorized at an public resource if only my own server has this authentication?

例如(伪代码):

通过快速基本身份验证，我从google.com上获得未授权"作为正文.没有身份验证，我得到了html

with the express basic authentication, I'm getting "Unauthorized" as body from google.com. without the auth, I get the html

    var auth = express.basicAuth(function(user, pass, callback) {
                var result = (user === 'john' && pass === 'doe') ? true : false;
                callback(null, result);
            });

            app.configure(function(){
                app.use("/", auth, function(next) { next(); });
                app.use("/", express.static(__dirname+'/html'));
            });

http.get('http://google.com', function(res) {

                res.setEncoding('utf8');
                var body = '';

                res.on('data', function (chunk) {
                    body = body + chunk;
                });

                res.on('end', function() {
                    cb(body);
                });

            }).on('error', function(err) {
                cb('error', err);
            }); 

推荐答案

在向服务器发出GET之后，您需要重组应用程序以在回调中完成对Google的调用.这是工作代码:

You need to restructure your app to have your call to Google done inside a callback, after a GET is issued to your server. Here's working code:

var express = require('express');
var request = require('request');
var app = express();

// Authenticator
app.use(express.basicAuth('john', 'doe'));

app.get('/', function(req, res) {
    request.get('http://www.google.com', function (err, response, body) {
        res.send(body)
    });
});

app.listen(process.env.PORT || 8080);

如果要进行更高级的基本身份验证，请参见以下详细信息: http://blog.modulus.io/nodejs-and-express-basic-authentication

Here are details if you want to do fancier basic authentication: http://blog.modulus.io/nodejs-and-express-basic-authentication

您似乎正在尝试同步编写代码，这将无法正常工作.我建议阅读这篇文章以复习惯用节点: http://blog.ponyfoo.com/2013/07/12/teach-yourself-nodejs-in-10-steps

It appears that you're trying to write code synchronously, which will not work. I recommend reading this article for a review of idiomatic Node: http://blog.ponyfoo.com/2013/07/12/teach-yourself-nodejs-in-10-steps

这篇关于来自具有HTTP基本身份验证(node.js)的应用程序的GET请求的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！