如何从控制器内确定给定请求的IP地址?例如(在快递中):
app.post('/get/ip/address', function (req, res) {
// need access to IP address here
})
如何从控制器内确定给定请求的IP地址?例如(在快递中):
app.post('/get/ip/address', function (req, res) {
// need access to IP address here
})
当前回答
我们可以在node js中检查这段代码
const os = require('os');
const interfaces = os.networkInterfaces();
let addresses = [];
for (var k in interfaces) {
for (var k2 in interfaces[k]) {
const address = interfaces[k][k2];
if ( (address.family === 'IPv4' || address.family === 'IPv6') &&
!address.internal) {
addresses.push(address.address);
}
}
}
console.log(addresses);
其他回答
在shell中,只需curl https://api.ipify.org
所以,让我们观察一下,把它移植到node.js!
Curl是一个从网站获取数据的应用程序,我们传递网站“https://api.ipify.org”作为参数。我们可以使用节点取回来替换curl!
我们从网站上获得的数据是我们的IP地址,这是一种获取你的IP地址的东西。
总结一下:
const fetch = require('node-fetch');
fetch('https://api.ipify.org')
.then(response => {/* whatever */})
.catch(err => {/* whatever */})
对于我使用kubernetes ingress (NGINX):
req.headers['x-original-forwarded-for']
在Node.js中非常有效
这里有很多很棒的观点,但没有一个是全面的,所以这里是我最终使用的:
function getIP(req) {
// req.connection is deprecated
const conRemoteAddress = req.connection?.remoteAddress
// req.socket is said to replace req.connection
const sockRemoteAddress = req.socket?.remoteAddress
// some platforms use x-real-ip
const xRealIP = req.headers['x-real-ip']
// most proxies use x-forwarded-for
const xForwardedForIP = (() => {
const xForwardedFor = req.headers['x-forwarded-for']
if (xForwardedFor) {
// The x-forwarded-for header can contain a comma-separated list of
// IP's. Further, some are comma separated with spaces, so whitespace is trimmed.
const ips = xForwardedFor.split(',').map(ip => ip.trim())
return ips[0]
}
})()
// prefer x-forwarded-for and fallback to the others
return xForwardedForIP || xRealIP || sockRemoteAddress || conRemoteAddress
}
var ip = req.headers['x-forwarded-for'] ||
req.socket.remoteAddress ||
null;
请注意,有时您可以在req.headers['x-forwarded-for']中获得多个IP地址。此外,并不总是设置x-forward -for报头,这可能会抛出错误。
该字段的一般格式为:
x-forward -for: client, proxy1, proxy2, proxy3
其中的值是一个逗号+空格分隔的IP地址列表,最左边是原始客户端,每个传递请求的后续代理添加接收请求的IP地址。在本例中,请求通过proxy1、proxy2和proxy3传递。Proxy3显示为请求的远程地址。
这是Arnav Gupta提出的解决方案,Martin在下面的评论中为未设置x-forward -for的情况提出了修复建议:
var ip = (req.headers['x-forwarded-for'] || '').split(',').pop().trim() ||
req.socket.remoteAddress
使用现代JS的建议:
仅在设置时处理x-forward -for,如果设置了,则取第一个地址 其他参数使用可选链接(?.)
const parseIp = (req) =>
req.headers['x-forwarded-for']?.split(',').shift()
|| req.socket?.remoteAddress
console.log(parseIp(req))
// => 127.0.0.1
你可以像这样快速获取用户Ip
req.ip
在这个例子中,我们获取了用户的Ip,然后用req.ip把它发回给用户
app.get('/', (req, res)=> {
res.send({ ip : req.ip})
})