nginx重寫代理到node.js的路徑

Question

當用戶訪問如下所示的URL時，我正在嘗試讓nodejs網站/服務器下載另一個網站： http://example.com/test/http://google.com ： http://example.com/test/http://google.com ： http://example.com/test/http://google.com

問題是nginx會將/test/http:/google.com重寫為/test/http:/google.com，應該是/test/http://google.com

app.js：

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

app.configure(function(){
    app.set('port', 8080);
    app.set('views', __dirname + '/app/server/views');
    app.set('view engine', 'jade');
    app.use(express.logger('dev'));
    app.use(express.bodyParser());
    app.use(express.cookieParser());
    app.use(express.session({ secret: 'super-duper-secret-secret' }));
    app.use(express.methodOverride());
    app.use(require('stylus').middleware({ src: __dirname + '/app/public' }));
    app.use(express.static(__dirname + '/app/public'));

    app.enable('trust proxy')

});

app.configure('development', function(){
    app.use(express.errorHandler());
});

require('./app/server/router')(app);

http.createServer(app).listen(app.get('port'), 'localhost', function(){
    console.log("Express server listening on port " + app.get('port'));
})

router.js：

app.get('/test/*', function(req, res) {
    console.log("REQ.URL:");
    console.log(req.url);
    res.send('200', req.url);
});

/etc/nginx/sites-enabled example.com文件

server {
        server_name example.com;
        access_log /var/log/nginx/example.com.log;
        # pass the request to the node.js server with the correct headers and much more can be added, see nginx config options
        location / {
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header Host $http_host;
                proxy_set_header X-NginX-Proxy true;
                proxy_pass http://127.0.0.1:8080;
                proxy_redirect off;
        }
}

有沒有辦法讓nginx不像它那樣重寫？

Answer 1

也許這樣的事情（未經測試的代碼）就是你所追求的：

app.get('/test/:url', function(req, res) {
    console.log("req.params.url:", req.params.url);
    res.send('200', req.params.url);
});

Answer 2

此代碼修復了此問題。

if(req.url.match(/https?:\/[^\/]/)) {
    req.url = req.url.replace(/(https?\:)\/([^\/])/, "$1//$2");
}

所以最終的代碼看起來像這樣

app.get('/test/*', function(req, res) {
    console.log("REQ.URL:");
    console.log(req.url);
    if(req.url.match(/https?:\/[^\/]/)) {
        req.url = req.url.replace(/(https?\:)\/([^\/])/, "$1//$2");
    }
    console.log("REQ.URL FIXED:");
    console.log(req.url);
    res.send('200', req.url);
});

如果有人知道如何在Express中修復它，以便它不會重寫路徑，我會將你的答案標記為正確的答案。

Answer 3

嘗試使用req.originalUrl 。

app.get('/test/*', function(req, res) {
    console.log(req.originalUrl);
    res.send('200', req.originalUrl);
});