Question

我需要一个简单的Python 3反向代理。

我喜欢Twisted及其简单的反向http代理（http://twistedmatrix.com/documents/14.0.1/_downloads/reverse-proxy.py）...

# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
This example demonstrates how to run a reverse proxy.

Run this example with:
    $ python reverse-proxy.py

Then visit http://localhost:8080/ in your web browser.
"""

from twisted.internet import reactor
from twisted.web import proxy, server

site = server.Site(proxy.ReverseProxyResource('www.yahoo.com', 80, ''))
reactor.listenTCP(8080, site)
reactor.run()

....但它在Python 3中引发了错误。

Unhandled Error
Traceback (most recent call last):
  File "/usr/local/lib/python3.4/dist-packages/twisted/protocols/basic.py", line 571, in dataReceived
    why = self.lineReceived(line)
  File "/usr/local/lib/python3.4/dist-packages/twisted/web/http.py", line 1752, in lineReceived
    self.allContentReceived()
  File "/usr/local/lib/python3.4/dist-packages/twisted/web/http.py", line 1845, in allContentReceived
    req.requestReceived(command, path, version)
  File "/usr/local/lib/python3.4/dist-packages/twisted/web/http.py", line 766, in requestReceived
    self.process()
--- <exception caught here> ---
  File "/usr/local/lib/python3.4/dist-packages/twisted/web/server.py", line 185, in process
    resrc = self.site.getResourceFor(self)
  File "/usr/local/lib/python3.4/dist-packages/twisted/web/server.py", line 791, in getResourceFor
    return resource.getChildForRequest(self.resource, request)
  File "/usr/local/lib/python3.4/dist-packages/twisted/web/resource.py", line 98, in getChildForRequest
    resource = resource.getChildWithDefault(pathElement, request)
  File "/usr/local/lib/python3.4/dist-packages/twisted/web/resource.py", line 201, in getChildWithDefault
    return self.getChild(path, request)
  File "/usr/local/lib/python3.4/dist-packages/twisted/web/proxy.py", line 278, in getChild
    self.host, self.port, self.path + b'/' + urlquote(path, safe=b"").encode('utf-8'),
builtins.TypeError: Can't convert 'bytes' object to str implicitly

在python 3中是否有类似的东西？

Answer 1

我自己偶然发现了这个问题，我很失望在这里找不到答案。经过一番挖掘，我能够通过将path中的proxy.ReverseProxyResource参数更改为bytes而不是str来实现它，从而呈现以下行：

site = server.Site(proxy.ReverseProxyResource("www.yahoo.com", 80, b''))

这是必要的，因为twisted会在内部添加一个尾部斜杠bytes（即b'/'）。

Answer 2

我在pypi上发现了这个简单的包，它似乎运行良好，同样简单。

https://pypi.python.org/pypi/maproxy

python 3中的反向代理

2 个答案: