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我正在尝试通过具有摘要身份验证的代理获取 HTTPS 页面。我使用 Python 3.4.3 和 urllib。诸如请求之类的第三方库不在我的考虑范围之内。这是我的代码：

import urllib.request


class SimplePasswordManager(object):
    def __init__(self, username, password):
        self.username = username
        self.password = password

    def add_password(self, realm, uri, user, passwd):
        pass

    def find_user_password(self, realm, authuri):
        return self.username, self.password


proxy_handler = urllib.request.ProxyHandler({
    'http': '<proxy server ip>',
    'https': '<proxy server ip>',
})
password_mgr = SimplePasswordManager('<username>', '<password>')
proxy_auth_handler = urllib.request.ProxyDigestAuthHandler(passwd=password_mgr)
opener = urllib.request.build_opener(proxy_auth_handler, proxy_handler)
req = opener.open('http://httpbin.org/ip')
print(req.read().decode('ascii'))
req = opener.open('https://httpbin.org/ip')
print(req.read().decode('ascii'))

结果：

{
  "origin": "<proxy server ip>"
}

Traceback (most recent call last):
  File "/usr/lib/python3.4/urllib/request.py", line 1182, in do_open
    h.request(req.get_method(), req.selector, req.data, headers)
  File "/usr/lib/python3.4/http/client.py", line 1088, in request
    self._send_request(method, url, body, headers)
  File "/usr/lib/python3.4/http/client.py", line 1126, in _send_request
    self.endheaders(body)
  File "/usr/lib/python3.4/http/client.py", line 1084, in endheaders
    self._send_output(message_body)
  File "/usr/lib/python3.4/http/client.py", line 922, in _send_output
    self.send(msg)
  File "/usr/lib/python3.4/http/client.py", line 857, in send
    self.connect()
  File "/usr/lib/python3.4/http/client.py", line 1223, in connect
    super().connect()
  File "/usr/lib/python3.4/http/client.py", line 837, in connect
    self._tunnel()
  File "/usr/lib/python3.4/http/client.py", line 820, in _tunnel
    message.strip()))
OSError: Tunnel connection failed: 407 Proxy Authentication Required

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "proxy_test.py", line 25, in <module>
    req = opener.open('https://httpbin.org/ip')
  File "/usr/lib/python3.4/urllib/request.py", line 463, in open
    response = self._open(req, data)
  File "/usr/lib/python3.4/urllib/request.py", line 481, in _open
    '_open', req)
  File "/usr/lib/python3.4/urllib/request.py", line 441, in _call_chain
    result = func(*args)
  File "/usr/lib/python3.4/urllib/request.py", line 1225, in https_open
    context=self._context, check_hostname=self._check_hostname)
  File "/usr/lib/python3.4/urllib/request.py", line 1184, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error Tunnel connection failed: 407 Proxy Authentication Required>

似乎 HTTP 连接有效，而 HTTPS 无效。我的代码正确吗？如何正确处理 HTTPS 连接？

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0 回答 0