Nodejs -禁用或销毁vhost子域/代理

Question

我有以下代码动态代理网站到子域。

var app = require('express')();
var proxy = require('express-http-proxy');
var vhost = require('vhost');
app.get('/make', function (req, res) {
    app.use(vhost('sub1.mysite.com', proxy("www.example.com");
    res.send("Proxy Created");
});
app.get('/destroy', function (req, res) {
    // Disable or Destroy the subdomain/proxy created above
    // ???
});
app.listen(8080);

我如何从/destroy路由禁用或销毁这个新创建的代理/子域?

Answer 1

app.js

var Ex = require('express');
var app = Ex();
app.listen(8080);
var DomainProxy = require('./DomainProxy').DomainProxy;
// Pass express instance 'app' into dp,
// dp will create a vhost router internally
var dp = new DomainProxy(app);
var proxies = [
    { domain: '1.local', site: 'http://www.bing.com' },
    { domain: '2.local', site: 'http://samanthagooden.com' },
    { domain: '3.local', site: 'http://www.courtleigh.com' },
    { domain: '4.local', site: 'http://example.com' }
];
dp.create(proxies);
app.get('/make', function (req, res) {
    var subDomain = 'sub1.mysite.com';
    var site = 'http://www.example.com'; // site need to contain 'http://', else dp link rewrite will not work correctly
    dp.create([{domain:subDomain,site:site}]);
    res.send("Proxy Created");
});
app.get('/destroy', function (req, res) {
    var subDomain = 'sub1.mysite.com';
    dp.destroy(subDomain);
    res.send("Proxy Destroyed");
});

DomainProxy.js

我也把我的答案从Nodejs - BrowserSync运行在express服务器

var proxy = require('express-http-proxy');
var url = require('url');
var vhost = require('vhost');
var Ex = require('express');
var DomainProxy = (function () {
    function DomainProxy(app) { // DomainProxy
        this.list = []; // vhost list array
        this.router = Ex.Router();
        app.use(this.router);
    }
    DomainProxy.prototype.create = function (proxies) {
        proxies.forEach(p => {
            // Destroy old proxy first
            this.destroy(p.domain);
            this.list.push(p.domain); // Add domain into list
            this.router.use(vhost(p.domain, proxy(p.site, {
                forwarDomainProxyath: (req, res) => url.parse(req.url).path,
                intercept: (rsp, data, req, res, callback) => {
                    if (res._headers['content-type']) {
                        var contentType = res._headers['content-type'];
                        // console.log(contentType);
                        if (
                            contentType.indexOf('text') !== -1 ||
                            contentType.indexOf('javascript') !== -1
                        ) {
                            // Rewrite links
                            var reg = new RegExp(p.site, 'g');
                            res.send(data.toString().replace(reg, ''));
                        } else {
                            res.send(data);
                        }
                    } else {
                        res.send(data);
                    }
                }
            })));
        })
    };
    DomainProxy.prototype.destroy = function (domain) {
        var i = this.list.indexOf(domain);
        if (i !== -1) {
            this.list.splice(i, 1);
            this.router.stack.splice(i, 1);
        }
    };
    return DomainProxy;
} ());
exports.DomainProxy = DomainProxy;