SSLError之 SysCallError(-1, 'Unexpected EOF')错误

原文链接： http://www.51msk.cn/?p=233

SSLError python请求错误的解决

首先描述详细的错误， 贴段代码：

import requests
# import warnings
# warnings.filterwarnings("ignore")
headers = {
    'Accept': "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3",
    'Accept-Encoding': 'gzip, deflate, br',
    'Accept-Language': 'zh-CN,zh;q=0.9',
    'Cache-Control': 'no-cache',
    'Connection': 'keep-alive',
    'Host': "www.cqepc.cn",
    'DNT': "1",
    'Pragma': "no-cache",
    'Upgrade-Insecure-Requests': "1",
    'User-Agent': "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
}
url = "https://www.cqepc.cn/aspcms/newslist/list-255-1.html"
proxies = None
res = requests.get("https://www.cqepc.cn/aspcms/newslist/list-255-1.html", headers=headers, verify=False, proxies=proxies)
print(res.status_code)
print(res.headers)
print(res.content.decode("gb2312"))

运行报错结果报错如下：

Traceback (most recent call last):
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\urllib3\contrib\pyopenssl.py", line 456, in wrap_socket
    cnx.do_handshake()
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\OpenSSL\SSL.py", line 1915, in do_handshake
    self._raise_ssl_error(self._ssl, result)
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\OpenSSL\SSL.py", line 1640, in _raise_ssl_error
    raise SysCallError(-1, "Unexpected EOF")
OpenSSL.SSL.SysCallError: (-1, 'Unexpected EOF')

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\urllib3\connectionpool.py", line 600, in urlopen
    chunked=chunked)
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\urllib3\connectionpool.py", line 343, in _make_request
    self._validate_conn(conn)
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\urllib3\connectionpool.py", line 839, in _validate_conn
    conn.connect()
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\urllib3\connection.py", line 344, in connect
    ssl_context=context)
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\urllib3\util\ssl_.py", line 347, in ssl_wrap_socket
    return context.wrap_socket(sock, server_hostname=server_hostname)
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\urllib3\contrib\pyopenssl.py", line 462, in wrap_socket
    raise ssl.SSLError('bad handshake: %r' % e)
ssl.SSLError: ("bad handshake: SysCallError(-1, 'Unexpected EOF')",)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\requests\adapters.py", line 449, in send
    timeout=timeout
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\urllib3\connectionpool.py", line 638, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\urllib3\util\retry.py", line 399, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='www.cqepc.cn', port=443): Max retries exceeded with url: /aspcms/newslist/list-255-1.html (Caused by SSLError(SSLError("bad handshake: SysCallError(-1, 'Unexpected EOF')",),))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:/Users/shuquanqiang/Documents/WeChat Files/li8615625/FileStorage/File/2019-08/chongqinghangtian(1).py", line 32, in <module>
    res = requests.get("https://www.cqepc.cn/aspcms/newslist/list-255-1.html", headers=headers, verify=False, proxies=proxies)
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\requests\api.py", line 75, in get
    return request('get', url, params=params, **kwargs)
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\requests\api.py", line 60, in request
    return session.request(method=method, url=url, **kwargs)
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\requests\sessions.py", line 533, in request
    resp = self.send(prep, **send_kwargs)
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\requests\sessions.py", line 646, in send
    r = adapter.send(request, **kwargs)
  File "C:\Users\shuquanqiang\AppData\Local\Programs\Python\Python36-32\lib\site-packages\requests\adapters.py", line 514, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='www.cqepc.cn', port=443): Max retries exceeded with url: /aspcms/newslist/list-255-1.html (Caused by SSLError(SSLError("bad handshake: SysCallError(-1, 'Unexpected EOF')",),))

Process finished with exit code 1

然后进行了好多尝试，发现 当打开代理charles进行抓包时，代码竟然可以请求通，但是总不能一直开着代理啊，继续查找，尝试了网上好多代码，最终通了，代码如下：

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import ssl
import requests
from requests.adapters import HTTPAdapter
from requests.packages.urllib3.poolmanager import PoolManager
#from urllib3.poolmanager import PoolManager
from requests.packages.urllib3.util.ssl_ import create_urllib3_context

headers = {
    'Accept': "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3",
    'Accept-Encoding': 'gzip, deflate, br',
    'Accept-Language': 'zh-CN,zh;q=0.9',
    'Cache-Control': 'no-cache',
    'Connection': 'keep-alive',
    'Host': "www.cqepc.cn",
    'DNT': "1",
    'Pragma': "no-cache",
    'Upgrade-Insecure-Requests': "1",
    'User-Agent': "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
}
url = "https://www.cqepc.cn/aspcms/newslist/list-255-1.html"
# py3.6
CIPHERS = (
    'ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+HIGH:'
    'DH+HIGH:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+HIGH:RSA+3DES:!aNULL:'
    '!eNULL:!MD5'
)

class DESAdapter(HTTPAdapter):
    """
    A TransportAdapter that re-enables 3DES support in Requests.
    """
    def create_ssl_context(self):
        #ctx = create_urllib3_context(ciphers=FORCED_CIPHERS)
        ctx = ssl.create_default_context()
        # allow TLS 1.0 and TLS 1.2 and later (disable SSLv3 and SSLv2)
        #ctx.options |= ssl.OP_NO_SSLv2
        #ctx.options |= ssl.OP_NO_SSLv3
        #ctx.options |= ssl.OP_NO_TLSv1
        ctx.options |= ssl.OP_NO_TLSv1_2
        ctx.options |= ssl.OP_NO_TLSv1_1
        #ctx.options |= ssl.OP_NO_TLSv1_3
        ctx.set_ciphers( CIPHERS )
        #ctx.set_alpn_protocols(['http/1.1', 'spdy/2'])
        return ctx

    def init_poolmanager(self, *args, **kwargs):
        context = create_urllib3_context(ciphers=CIPHERS)
        kwargs['ssl_context'] = self.create_ssl_context()
        return super(DESAdapter, self).init_poolmanager(*args, **kwargs)

    def proxy_manager_for(self, *args, **kwargs):
        context = create_urllib3_context(ciphers=CIPHERS)
        kwargs['ssl_context'] = self.create_ssl_context()
        return super(DESAdapter, self).proxy_manager_for(*args, **kwargs)

proxies=None
ses = requests.session()
ses.mount('https://', DESAdapter())
response = ses.get(url, headers=headers, proxies=proxies, verify=True)
print(response.status_code)
print(response.content.decode("gb2312"))

参考代码

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