使用ExpressJS提供非标准HTTP方法 [英] Serving non-standard HTTP method with ExpressJS

问题描述

我想编写一个使用非标准HTTP方法（动词）回答请求的HTTP服务器。例如，客户端将发出如 FOO / HTTP / .1.1 的请求。而在服务器端，这个请求将被处理如下：

  var express = require（'express ）; 
 
 var app = express.createServer（）; 
 
 app.configure（function（）{
 app.use（express.logger（{format：'：method：url'}））; 
 app.use（express .methodOverride（））; 
}）; 
 
 app.foo（'/'，function（req，res）{
 res.send（'Hello World'）; 
}）; 
 
 app.listen（3000）; 
  

我将非标准方法附加到ExpressJS的 lib /路由器/ methods.js 。这样我可以按预期的方式写我的服务器代码。当使用 express.methodOverride（）和 POST 请求与 _method = foo ，它工作。但实际的 FOO 请求无效。一旦客户端发送请求的第一行，连接将被服务器关闭：

  $ telnet localhost 3000 
尝试127.0.0.1 ... 
连接到本地主机。 
转义字符为'^]。 
 FOO / HTTP / 1.1 
外部主机关闭连接。 
  

我希望能够使用ExpressJS实现此功能，而无需避免黑客入侵其核心文件。 / p>

任何想法，如果这是可能的，如何？

解决方案

：不，不可能。不需要实现自己的HTTP模块。

要测试，启动一个准系统HTTP服务器...

  $ node 
> require（'http'）。createServer（function（req，res）{
 ... console.log（req.method）; 
 ... res.end（）; 
。听（8080）; 
  

然后（如您已经完成）telnet到它并发出GET和FOO请求.. 。

  $ telnet localhost 8080 
 Trying :: 1 ... 
 telnet：连接到地址： ：1：连接拒绝
尝试127.0.0.1 ... 
连接到本地主机。 
转义字符为'^]。 
 GET / HTTP / 1.1 
 
 HTTP / 1.1 200 OK 
连接：keep-alive 
传输编码：chunked 
 
 0 
 
 FOO / HTTP / 1.1 
外部主机关闭连接。 
 
 $ 
  

在节点控制台中，您将看到

  GET 
  

。 ..但没有FOO。因此，Express使用的节点的本机HTTP模块不会使这些请求可用。

I would like to write an HTTP server that answer to request using a non-standard HTTP method (verb). For instance, the client would make a request like FOO / HTTP/.1.1. And on the server side, this request would be handled by something like:

var express = require('express');

var app = express.createServer();

app.configure(function(){
  app.use(express.logger({ format: ':method :url' }));
  app.use(express.methodOverride());
});

app.foo('/', function(req, res){
    res.send('Hello World');
});

app.listen(3000);

I appended my non-standard method to the array exported in ExpressJS's lib/router/methods.js. This allow me to write my server code as expected. When using express.methodOverride() and a POST request with _method=foo, it works. But an actual FOO request doesn't work. As soon as the client send the first line of the request the connection is closed by the server:

$telnet localhost 3000
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
FOO / HTTP/1.1
Connection closed by foreign host.

I would like to be able to implement this with ExpressJS and without avoid hacking into its core file.

Any idea if this is possible and how?

解决方案

Short answer: No, it's not possible. Not without implementing your own HTTP module.

To test, start a barebones HTTP server ...

$ node
> require('http').createServer(function(req, res) {
...   console.log(req.method);
...   res.end();
... }).listen(8080);

Then (as you've already done) telnet to it and issue a GET and FOO request ...

$ telnet localhost 8080
Trying ::1...
telnet: connect to address ::1: Connection refused
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
GET / HTTP/1.1

HTTP/1.1 200 OK
Connection: keep-alive
Transfer-Encoding: chunked

0

FOO / HTTP/1.1
Connection closed by foreign host.

$ 

In node console you'll see

GET

... but no FOO. So, node's native HTTP module, which Express uses, does not make these requests available.

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