如何获取具有 socket.io 的客户端 IP 地址?

Question

我已经搜索了整个SO，但我找不到答案。我想获取带有套接字io的客户端IP地址。v2.0.3应用.js

var app = express();
var server = require('http').Server(app);
var io = require('socket.io')(server);
/// other imports ...
//with or without this line nothing changes
io.set('transports', ['websocket']);
app.use(function(req, res, next) {
req.db = db;
next();
});
require('./sockets')(io, db);

插座.js

module.exports = function(io, db) {
io.on('connection', function(socket) {
var ip = socket.request.socket.remoteAddress ; // undefined
//var ip = socket.handshake.headers["x-forwarded-for"]; undefined
//var ip = socket.handshake.headers["X-Forwarded-For"]; undefined
});
});

所以这段代码不起作用：

var ip = socket.request.socket.remoteAddress

这个不工作吃：

var ip = socket.handshake.headers["x-forwarded-for"];
//var ip = socket.handshake.headers["X-Forwarded-For"];

使用此 nginx 配置：

server {
listen 80;
server_name example.com;  
location / {
proxy_pass http://localhost:3000;
proxy_set_header X-Forwarded-For $remote_addr;
}
}

无论如何都可以获取带有 socket.io 的客户端 IP 地址吗？

Answer 1

我更改了nginx配置，问题解决了：

server {
listen 80;
server_name example.com;
set_real_ip_from 10.0.0.0/8;
real_ip_header X-Real-IP;
real_ip_recursive on;

location / {
proxy_pass http://127.0.0.1:3000;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header  Host $host;
proxy_set_header  X-Real-IP $remote_addr;
proxy_set_header  X-Forwarded-Proto https;
}
}

并在sockets.js

module.exports = function(io, db) {
io.on('connection', function(socket) {
var ip = socket.handshake.headers["x-real-ip"];
});
});

Answer 2

你可以试试socket.handshake.address或socket.handshake.address.substr(7)