Python请求request.exceptions.SSLError:[Errno 8] _ssl.c:504:发生了违反协议的EOF [英] Python Requests requests.exceptions.SSLError: [Errno 8] _ssl.c:504: EOF occurred in violation of protocol

问题描述

我正在使用OpenSSL 1.0.1c，python 2.7.3，请求 1.0的Ubuntu 12.10. 3和1.0.4(都尝试过)，以及尝试使用以下代码在url变量中连接到网站时.

I'm on Ubuntu 12.10 with OpenSSL 1.0.1c, python 2.7.3, Requests 1.0.3 and 1.0.4 (tried both), and when attempting to connect to the website in the url variable with the following code.

def SendInitialRequest(xmlmessage, redirecturl):
    url = 'https://centineltest.cardinalcommerce.com/maps/txns.asp'

    payload = 'cmpi_msg=' + ET.tostring(xmlmessage)
    headers = {
        'Content-Type': 'application/x-www-form-urlencoded',
    }
    r = requests.post(url, data=payload, headers=headers, verify=None)
    print r.text

它引发以下错误:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "clams/libs/centinel/thinclient.py", line 134, in SendInitialRequest
    r = requests.post(url, data=payload, headers=headers, verify=None)
  File "/home/jasonamyers/.virtualenv/clams/lib/python2.7/site-packages/requests/api.py", line 87, in post
    return request('post', url, data=data, **kwargs)
  File "/home/jasonamyers/.virtualenv/clams/lib/python2.7/site-packages/requests/api.py", line 44, in request
    return session.request(method=method, url=url, **kwargs)
  File "/home/jasonamyers/.virtualenv/clams/lib/python2.7/site-packages/requests/sessions.py", line 269, in request
    resp = self.send(prep, stream=stream, timeout=timeout, verify=verify, cert=cert, proxies=proxies)
  File "/home/jasonamyers/.virtualenv/clams/lib/python2.7/site-packages/requests/sessions.py", line 364, in send
    r = adapter.send(request, **kwargs)
  File "/home/jasonamyers/.virtualenv/clams/lib/python2.7/site-packages/requests/adapters.py", line 163, in send
    raise SSLError(e)
requests.exceptions.SSLError: [Errno 8] _ssl.c:504: EOF occurred in violation of protocol

尝试与openssl连接将返回以下内容:

Attempting the connection with openssl returns the following:

$ openssl s_client -connect centineltest.cardinalcommerce.com:443
CONNECTED(00000003)
140019346777760:error:140790E5:SSL routines:SSL23_WRITE:ssl handshake failure:s23_lib.c:177:
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 0 bytes and written 226 bytes
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
---

如果我强迫它使用tls1，则它可以工作(输出被截断):

If I force it to use tls1 it works (output truncated):

$ openssl s_client -tls1 -connect centineltest.cardinalcommerce.com:443
CONNECTED(00000003)
depth=2 C = US, O = "thawte, Inc.", OU = Certification Services Division, OU
verify error:num=20:unable to get local issuer certificate
verify return:0
---

为此，我已经看到了许多错误报告；但是，我还没有找到一种使用python请求库解决该问题的方法.任何帮助将不胜感激.

I've seen numerous bug reports for this; however, I've not found a way to get around it using the python requests library. Any assistance would be greatly appreciated.

推荐答案

从请求发布页面:

Requests'不支持在版本1之前执行此操作.在版本1之后，您应该继承HTTPAdapter的子类，如下所示:

Requests' does not support doing this before version 1. Subsequent to version 1, you are expected to subclass the HTTPAdapter, like so:

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

class MyAdapter(HTTPAdapter):
    def init_poolmanager(self, connections, maxsize, block=False):
        self.poolmanager = PoolManager(num_pools=connections,
                                       maxsize=maxsize,
                                       block=block,
                                       ssl_version=ssl.PROTOCOL_TLSv1)

完成此操作后，您可以执行以下操作:

When you've done that, you can do this:

import requests
s = requests.Session()
s.mount('https://', MyAdapter())

通过该会话对象的任何请求都将使用TLSv1.

Any request through that session object will then use TLSv1.

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