Question

我的本地开发脚本使用代理来绕过CORS（除其他外）。我首先得到一些错误的cookie，允许我在开发时跳过我的应用程序中的身份验证。然后回调到spoofCookies设置我的静态代理 - 它提供我所有的本地静态内容，然后为路由到/ microsvc的所有呼叫设置代理。我接听电话，注入我的欺骗性cookie，并将其转发到远程主机上的相同路径。

这个脚本非常适合GET，但我对如何编写POST部分感到困惑。 req永远不会显示我通过我的代理发送的POST表单，因此我必须做一些非常错误的事情。

感谢您的时间

    /*jslint node:true white:true nomen:true es5:true*/

'use strict';

var PORT_HTTP = process.env.PORT || 4400;
var localAddress =  "http://localhost:" + PORT_HTTP;

var apiAddress = {      label:      "On-site Ethernet Plug",
                        protocol:   "http://",
                        port:       80,
                        host :      "10.17.100.11",
                        microsvc:   "/microsvc",
                        auth:       "/login.form"
                 };

var https = require('https');
var path = require('path');
var express = require('express');
var app = express();
var spoofCookie = require('./utils/spoof-cookies');
var cookies = [];

var proxy = function(myPath, searchOptions, req, res, cookies) {
    var options = {
        hostname: apiAddress.host,
        port: apiAddress.port,
        path: apiAddress.microsvc + searchOptions,
        rejectUnauthorized: false
    };

    if(cookies.length){
        options.headers = {
            "Cookie":cookies[0]
        };
    }

    try {
        console.log('FROM: ' + localAddress + myPath + searchOptions + '\n' +
                    '↳ TO: ' + apiAddress.protocol + apiAddress.host + apiAddress.microsvc + searchOptions);

        options.method = req.method;

        if(options.method == 'POST' || options.method == 'PUT') {

            // HELP
            // form data never appears in output
            console.log(req);

        } else {
            var r = https.request(options, function(resX) {
                resX.setEncoding('utf8');
                var responseData = '';
                resX.on('data', function(chunk) {
                    responseData += chunk;
                });
                resX.on('end', function() {
                    res.send(JSON.parse(responseData));
                });
            });

            r.on('error', function(e) {
                if (e.code == "ENOTFOUND") {
                    console.error("File not found on remote");
                } else {
                    console.error('ff ' + e);
                }
            });
        }

        req.pipe(r).pipe(res);

    } catch (e) {
        console.error(e);
    }
};

// START - first get spoofed cookies
spoofCookie.getCookies(apiAddress, function(cookies) { 

    // set up server
    var httpServer = http.createServer(app);
    httpServer.listen(PORT_HTTP);

    // microservice proxy
    app.use('/microsvc', function (req, res) {
        proxy('/microsvc', req.url, req, res, cookies);
    });

    console.log("HTTP server started: " + localAddress);

});


// static server runs anything that isn't set up for proxy
app.use(express.static(path.resolve(path.join(__dirname, "..", "app"))));

Answer 1

默认情况下快速is not parsing请求正文。

req.body包含请求正文中提交的键值对数据。默认情况下，它是undefined，并在您使用正文解析中间件（例如body-parser和multer）时填充。

因此，使用body-parser的设置看起来就是这样。

首先，在声明路由之前将中间件附加到某处：

var bodyParser = require('body-parser');

// parse application/x-www-form-urlencoded
app.use(bodyParser.urlencoded({ extended: false }));

// parse application/json
app.use(bodyParser.json());

// microservice proxy
app.use('/microsvc', function (req, res) {
    proxy('/microsvc', req.url, req, res, cookies);
});

然后，访问request.body中的请求内容：

if(options.method == 'POST' || options.method == 'PUT') {
    console.log(req.body);
}

使用Node.js代理POST并修改标头

1 个答案: