nodejs和javascript用户代理行为_Javascript_Node.js

nodejs和javascript用户代理行为

javascript node.js

nodejs和javascript用户代理行为,javascript,node.js,Javascript,Node.js,如何让javascript从原始http请求传递useragent信息（IP地址）？当我运行下面的代码时，我总是收到服务器IP（例如1.2.3.4）地址，就像它发出http请求一样 index.html <!DOCTYPE html> <html> <title>ContactForm</title> <body> <h1>Contact Form</h1> <form action="http://1.2

如何让javascript从原始http请求传递useragent信息（IP地址）？当我运行下面的代码时，我总是收到服务器IP（例如1.2.3.4）地址，就像它发出http请求一样

index.html

<!DOCTYPE html>
<html>
<title>ContactForm</title>
<body>
<h1>Contact Form</h1>
<form action="http://1.2.3.4:8080/myaction" method="post" target="_blank">
 Business Name <input type="text" name="businessname"><br>
 User Agent: <input type="text" id="UserAgent" name="useragent">
<input type="submit" value="Submit">
</form>`

以下是我的作品：

app.post('/myaction', function(req, res) {
   console.log(req.ip)
   res.send('Thank you for your inquiry, someone will contact you shorty.');
});

产出：

::ffff:17.###.##.##

值得一提的是，在我的设置中涉及到两台独立的机器（独立的IP），只有在这种情况下，用户代理IP与服务器IP地址不同

如果浏览器（useragent）和节点服务器是同一台机器，显然您将获得与html

action=”中相同的IPhttp://17.###.##.##:7777/myaction“

修改后的“server.js”文件的以下内容：

var express = require('express'),
path = require('path'),
fs = require('fs'),
bodyParser = require('body-parser')

var app = express();
app.use(bodyParser.urlencoded({ extended: true })); // for parsing application/x-www-form-urlencoded
app.use(express.static(path.join(__dirname, 'server/public')));

app.post('/myaction', function(req, res) {
    console.log(req.ip)
    res.send('Thank you for your inquiry, someone will contact you shorty.');

    fs.appendFile('submission.txt',  'useragent='+JSON.stringify(req.headers)+' ', function(err) {
      if (!err) {
          console.log('Wrote agent headers info to file.txt');
        } else {
          throw err;
        }
      });
});

app.get('/', function(request, response){
    console.log(request.headers)
    response.sendFile('/index.html');
});

app.listen(7777, function() {
  console.log('Server running at http://127.0.0.1:7777/');
});

submission.txt

中的结果数据（此处没有用户代理IP，因为它不在

req.headers

中）：

我看不出你在node.js的什么地方获得了用户的ip地址。很抱歉，更新了node.js以包含相关的代码效果很好，不确定这是否是正确的问题，但我在哪里可以找到关于我的

（req，res）

”参数选项的文档？酷！看看这里：，没有比官方文件更好的地方了。

var express = require('express'),
path = require('path'),
fs = require('fs'),
bodyParser = require('body-parser')

var app = express();
app.use(bodyParser.urlencoded({ extended: true })); // for parsing application/x-www-form-urlencoded
app.use(express.static(path.join(__dirname, 'server/public')));

app.post('/myaction', function(req, res) {
    console.log(req.ip)
    res.send('Thank you for your inquiry, someone will contact you shorty.');

    fs.appendFile('submission.txt',  'useragent='+JSON.stringify(req.headers)+' ', function(err) {
      if (!err) {
          console.log('Wrote agent headers info to file.txt');
        } else {
          throw err;
        }
      });
});

app.get('/', function(request, response){
    console.log(request.headers)
    response.sendFile('/index.html');
});

app.listen(7777, function() {
  console.log('Server running at http://127.0.0.1:7777/');
});

useragent={"host":"17.###.##.##:7777","content-type":"application/x-www-form-urlencoded","origin":"http://localhost:7777","content-length":"24","connection":"keep-alive","accept":"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8","user-agent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/601.3.9 (KHTML, like Gecko) Version/9.0.2 Safari/601.3.9","referer":"http://localhost:7777/","accept-language":"en-us","accept-encoding":"gzip, deflate"}