如何禁用请求中的主机名检查python

问题描述

我正在使用请求连接到 RESTful API.我想要访问的服务器使用带有自签名证书的 ssl.

I'm using Requests to connect to a RESTful API. The server I would like to reach use ssl with self-singed certificate.

cafile = "gateway.pem"
r = requests.get(request, auth=('admin', 'password'), verify=cafile)

问题是我收到主机名不匹配的 SSLError.应该有一种方法可以在不禁用证书验证的情况下禁用主机名检查，就像在许多 Java 实现中一样，但我在 python 中找不到如何处理请求的方法.

the problem is I'm getting SSLError of hostname mismatch.there should be a way to disable the hostname checking without disabling certificate validation, as in many java implementations, but I can't find how to do it with requests in python.

堆栈跟踪:

Traceback (most recent call last):
  File "<pyshell#43>", line 1, in <module>
    r = requests.get(request, auth=("admin", "password"), verify='gateway.pem')
  File "C:\Python27\lib\site-packages\requests-2.0.0-py2.7.egg\requests\api.py", line 55, in get
    return request('get', url, **kwargs)
  File "C:\Python27\lib\site-packages\requests-2.0.0-py2.7.egg\requests\api.py", line 44, in request
    return session.request(method=method, url=url, **kwargs)
  File "C:\Python27\lib\site-packages\requests-2.0.0-py2.7.egg\requests\sessions.py", line 357, in request
    resp = self.send(prep, **send_kwargs)
  File "C:\Python27\lib\site-packages\requests-2.0.0-py2.7.egg\requests\sessions.py", line 460, in send
    r = adapter.send(request, **kwargs)
  File "C:\Python27\lib\site-packages\requests-2.0.0-py2.7.egg\requests\adapters.py", line 358, in send
    raise SSLError(e)
SSLError: hostname '10.76.92.70' doesn't match u'lital.com'

这是怎么做到的?

推荐答案

Requests 不允许直接这样做，但是您可以提供使用底层 urllib3 功能的自定义传输适配器.请求文档中介绍了传输适配器的使用.

Requests doesn't allow this directly, however you can provide a custom transport adapter which uses the features of the underlying urllib3. The usage of transport adapters is covered in the requests documentation.

此代码未经测试，但应该可以工作.

This code is not tested, but should work.

from requests.adapters import HTTPAdapter
from requests.packages.urllib3.poolmanager import PoolManager


# Never check any hostnames
class HostNameIgnoringAdapter(HTTPAdapter):
    def init_poolmanager(self, connections, maxsize, block=False):
        self.poolmanager = PoolManager(num_pools=connections,
                                       maxsize=maxsize,
                                       block=block,
                                       assert_hostname=False)


# Check a custom hostname
class CustomHostNameCheckingAdapter(HTTPAdapter):
    def cert_verify(self, conn, url, verify, cert):
        #      implement me
        host = custom_function_mapping_url_to_hostname(url)
        conn.assert_hostname = host
        return super(CustomHostNameCheckingAdapter,
                     self).cert_verify(conn, url, verify, cert)

assert_hostname 参数的详细工作如下:如果 None 使用 URL 中的主机名，如果 False 禁止主机名检查，如果自定义字符串对此字符串进行验证.

In detail the assert_hostname param works as follows:If None use the hostname from the URL, if False suppress hostname checking, if a custom string validate against this string.

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