Python请求request.exceptions.SSLError：[Errno 8] _ssl.c：504：发生了违反协议的EOF

小编典典

Python请求request.exceptions.SSLError：[Errno 8] _ssl.c：504：发生了违反协议的EOF

python

我在使用OpenSSL 1.0.1c，python 2.7.3，请求1.0.3和1.0.4（都尝试过）的Ubuntu
12.10上，并且尝试使用以下代码连接到url变量中的网站时。

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

尝试使用openssl返回以下内容：

$ 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，它将起作用（输出被截断）：

$ 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
---

我已经看到了很多有关此问题的错误报告。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。

阅读 204

2020-12-20

共1个答案

小编典典

在请求发布页面上将其重新发布给其他人：

在版本1之前，“请求”不支持执行此操作。在版本1之后，您应该继承HTTPAdapter的子类，如下所示：

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：

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

然后，通过该会话对象的任何请求都将使用TLSv1。

2020-12-20