我想阻止用户直接输入页面的网址并进入页面。 如何在节点中实现此功能? 我知道在Web应用程序中将文件放在WEB-INF文件夹下会阻止直接访问它们。
答案 0 :(得分:1)
如果您正在使用Express
,您可以使用类似的内容检查中间件中的referer,您应该根据具体目的进一步调整:
var express = require('express')
var app = express()
permittedLinker = ['localhost', '127.0.0.1']; // who can link here?
app.use(function(req, res, next) {
var i=0, notFound=1, referer=req.get('Referer');
if ((req.path==='/') || (req.path==='')) next(); // pass calls to '/' always
if (referer){
while ((i<permittedLinker.length) && notFound){
notFound= (referer.indexOf(permittedLinker[i])===-1);
i++;
}
}
if (notFound) {
res.status(403).send('Protected area. Please enter website via www.mysite.com');
} else {
next(); // access is permitted, go to the next step in the ordinary routing
}
});
app.get('/', function(req,res){
res.send('<p>Hello. You are at the main page. </p><a href="page2">page 2</a>');
});
app.get('/page2', function(req,res){
res.send('<p>You are at page 2</p>');
});
app.listen(3000); // test at http://localhost:3000
我们可以获得主页吗?的是
wget http://localhost:3000/
--2014-10-10 04:01:18-- http://localhost:3000/
Resolving localhost (localhost)... 127.0.0.1
Connecting to localhost (localhost)|127.0.0.1|:3000... connected.
HTTP request sent, awaiting response...
200 OK
Length: 67 [text/html]
Saving to: ‘index.html’
我们可以直接获得第二页吗? 否强>
wget http://localhost:3000/page2
--2014-10-10 04:04:34-- http://localhost:3000/page2
Resolving localhost (localhost)... 127.0.0.1
Connecting to localhost (localhost)|127.0.0.1|:3000... connected.
HTTP request sent, awaiting response... 403 Forbidden
2014-10-10 04:04:34 ERROR 403: Forbidden.
我们可以从第一页获得第二页吗?的是
wget --referer="http://localhost" http://localhost:3000/page2
--2014-10-10 04:05:32-- http://localhost:3000/page2
Resolving localhost (localhost)... 127.0.0.1
Connecting to localhost (localhost)|127.0.0.1|:3000... connected.
HTTP request sent, awaiting response...
200 OK
Length: 24 [text/html]
Saving to: ‘page2’
任何脚本小子都可以学习使用wget --referer来击败这个&#34;保护&#34;方案?
是。它只会阻止诚实的人。不是真正想要内容的人。