打开fiddler,使用requests请求时报错requests.exceptions.SSLError: HTTPSConnectionPool

博客主要讲述使用Fiddler抓包后,在其未关闭状态下用PyCharm进行URL访问报错的问题。原因是SSL验证失败,解决方案是在使用requests发送请求时添加verify参数并设为False,去掉警告还需添加特定代码,最后执行成功。

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问题描述:

使用fiddler进行抓包后,fiddler不关闭,使用pycharm进行url访问,报错,如下:

Traceback (most recent call last):
  File "F:\project\venv\lib\site-packages\urllib3\connectionpool.py", line 594, in urlopen
    self._prepare_proxy(conn)
  File "F:\project\venv\lib\site-packages\urllib3\connectionpool.py", line 805, in _prepare_proxy
    conn.connect()
  File "F:\project\venv\lib\site-packages\urllib3\connection.py", line 344, in connect
    ssl_context=context)
  File "F:\project\venv\lib\site-packages\urllib3\util\ssl_.py", line 344, in ssl_wrap_socket
    return context.wrap_socket(sock, server_hostname=server_hostname)
  File "G:\anaconda\lib\ssl.py", line 407, in wrap_socket
    _context=self, _session=session)
  File "G:\anaconda\lib\ssl.py", line 814, in __init__
    self.do_handshake()
  File "G:\anaconda\lib\ssl.py", line 1068, in do_handshake
    self._sslobj.do_handshake()
  File "G:\anaconda\lib\ssl.py", line 689, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:777)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "F:\project\venv\lib\site-packages\requests\adapters.py", line 449, in send
    timeout=timeout
  File "F:\project\venv\lib\site-packages\urllib3\connectionpool.py", line 638, in urlopen
    _stacktrace=sys.exc_info()[2])
  File "F:\project\venv\lib\site-packages\urllib3\util\retry.py", line 398, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='www.baidu.com', port=443): Max retries exceeded with url: / (Caused by SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:777)'),))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "F:/project/python_test3.py", line 2, in <module>
    res = requests.get("https://www.baidu.com/")
  File "F:\project\venv\lib\site-packages\requests\api.py", line 75, in get
    return request('get', url, params=params, **kwargs)
  File "F:\project\venv\lib\site-packages\requests\api.py", line 60, in request
    return session.request(method=method, url=url, **kwargs)
  File "F:\project\venv\lib\site-packages\requests\sessions.py", line 533, in request
    resp = self.send(prep, **send_kwargs)
  File "F:\project\venv\lib\site-packages\requests\sessions.py", line 646, in send
    r = adapter.send(request, **kwargs)
  File "F:\project\venv\lib\site-packages\requests\adapters.py", line 514, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='www.baidu.com', port=443): Max retries exceeded with url: / (Caused by SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:777)'),))

代码如下:

import requests
res = requests.get("https://www.baidu.com/")
print(res.text)

当我将url中的https改为http的时候,即使开着fiddler也不会报错

原因分析:

ssl验证失败

解决方案:

在使用requests发送请求的时候加上verify这个参数并设置为False

正确代码如下

import requests
res = requests.get("https://www.baidu.com/",verify=False)
print(res.text)

再次执行,执行结果如下:

F:\project\venv\Scripts\python.exe F:/project/python_test3.py
F:\project\venv\lib\site-packages\urllib3\connectionpool.py:847: InsecureRequestWarning: Unverified HTTPS request is being made. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings
  InsecureRequestWarning)
<!DOCTYPE html>
<!--STATUS OK--><html> <head><meta http-equiv=content-type content=text/html;charset=utf-8><meta http-equiv=X-UA-Compatible content=IE=Edge><meta content=always name=referrer><link rel=stylesheet type=text/css href=https://ss1.bdstatic.com/5eN1bjq8AAUYm2zgoY3K/r/www/cache/bdorz/baidu.min.css><title>ç¾åº¦ä¸ä¸ï¼ä½ å°±ç¥é</title></head> <body link=#0000cc> <div id=wrapper> <div id=head> <div class=head_wrapper> <div class=s_form> <div class=s_form_wrapper> <div id=lg> <img hidefocus=true src=//www.baidu.com/img/bd_logo1.png width=270 height=129> </div> <form id=form name=f action=//www.baidu.com/s class=fm> <input type=hidden name=bdorz_come value=1> <input type=hidden name=ie value=utf-8> <input type=hidden name=f value=8> <input type=hidden name=rsv_bp value=1> <input type=hidden name=rsv_idx value=1> <input type=hidden name=tn value=baidu><span class="bg s_ipt_wr"><input id=kw name=wd class=s_ipt value maxlength=255 autocomplete=off autofocus=autofocus></span><span class="bg s_btn_wr"><input type=submit id=su value=ç¾åº¦ä¸ä¸ class="bg s_btn" autofocus></span> </form> </div> </div> <div id=u1> <a href=http://news.baidu.com name=tj_trnews class=mnav>æ°é»</a> <a href=https://www.hao123.com name=tj_trhao123 class=mnav>hao123</a> <a href=http://map.baidu.com name=tj_trmap class=mnav>å°å¾</a> <a href=http://v.baidu.com name=tj_trvideo class=mnav>è§é¢</a> <a href=http://tieba.baidu.com name=tj_trtieba class=mnav>è´´å§</a> <noscript> <a href=http://www.baidu.com/bdorz/login.gif?login&amp;tpl=mn&amp;u=http%3A%2F%2Fwww.baidu.com%2f%3fbdorz_come%3d1 name=tj_login class=lb>ç»å½</a> </noscript> <script>document.write('<a href="http://www.baidu.com/bdorz/login.gif?login&tpl=mn&u='+ encodeURIComponent(window.location.href+ (window.location.search === "" ? "?" : "&")+ "bdorz_come=1")+ '" name="tj_login" class="lb">ç»å½</a>');
                </script> <a href=//www.baidu.com/more/ name=tj_briicon class=bri style="display: block;">æ´å¤äº§å</a> </div> </div> </div> <div id=ftCon> <div id=ftConw> <p id=lh> <a href=http://home.baidu.com>å³äºç¾åº¦</a> <a href=http://ir.baidu.com>About Baidu</a> </p> <p id=cp>&copy;2017&nbsp;Baidu&nbsp;<a href=http://www.baidu.com/duty/>使ç¨ç¾åº¦åå¿è¯»</a>&nbsp; <a href=http://jianyi.baidu.com/ class=cp-feedback>æè§åé¦</a>&nbsp;京ICPè¯030173å·&nbsp; <img src=//www.baidu.com/img/gs.gif> </p> </div> </div> </div> </body> </html>


Process finished with exit code 0

 结果出现警告,Unverified HTTPS request is being made. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings InsecureRequestWarning)

想去掉红框内的内容还需要添加如下代码

requests.packages.urllib3.disable_warnings()

正确代码:

import requests
requests.packages.urllib3.disable_warnings()
res = requests.get("https://www.baidu.com/",verify=False)
print(res.text)

执行结果如下,执行成功:

F:\project\venv\Scripts\python.exe F:/project/python_test3.py
<!DOCTYPE html>
<!--STATUS OK--><html> <head><meta http-equiv=content-type content=text/html;charset=utf-8><meta http-equiv=X-UA-Compatible content=IE=Edge><meta content=always name=referrer><link rel=stylesheet type=text/css href=https://ss1.bdstatic.com/5eN1bjq8AAUYm2zgoY3K/r/www/cache/bdorz/baidu.min.css><title>ç¾åº¦ä¸ä¸ï¼ä½ å°±ç¥é</title></head> <body link=#0000cc> <div id=wrapper> <div id=head> <div class=head_wrapper> <div class=s_form> <div class=s_form_wrapper> <div id=lg> <img hidefocus=true src=//www.baidu.com/img/bd_logo1.png width=270 height=129> </div> <form id=form name=f action=//www.baidu.com/s class=fm> <input type=hidden name=bdorz_come value=1> <input type=hidden name=ie value=utf-8> <input type=hidden name=f value=8> <input type=hidden name=rsv_bp value=1> <input type=hidden name=rsv_idx value=1> <input type=hidden name=tn value=baidu><span class="bg s_ipt_wr"><input id=kw name=wd class=s_ipt value maxlength=255 autocomplete=off autofocus=autofocus></span><span class="bg s_btn_wr"><input type=submit id=su value=ç¾åº¦ä¸ä¸ class="bg s_btn" autofocus></span> </form> </div> </div> <div id=u1> <a href=http://news.baidu.com name=tj_trnews class=mnav>æ°é»</a> <a href=https://www.hao123.com name=tj_trhao123 class=mnav>hao123</a> <a href=http://map.baidu.com name=tj_trmap class=mnav>å°å¾</a> <a href=http://v.baidu.com name=tj_trvideo class=mnav>è§é¢</a> <a href=http://tieba.baidu.com name=tj_trtieba class=mnav>è´´å§</a> <noscript> <a href=http://www.baidu.com/bdorz/login.gif?login&amp;tpl=mn&amp;u=http%3A%2F%2Fwww.baidu.com%2f%3fbdorz_come%3d1 name=tj_login class=lb>ç»å½</a> </noscript> <script>document.write('<a href="http://www.baidu.com/bdorz/login.gif?login&tpl=mn&u='+ encodeURIComponent(window.location.href+ (window.location.search === "" ? "?" : "&")+ "bdorz_come=1")+ '" name="tj_login" class="lb">ç»å½</a>');
                </script> <a href=//www.baidu.com/more/ name=tj_briicon class=bri style="display: block;">æ´å¤äº§å</a> </div> </div> </div> <div id=ftCon> <div id=ftConw> <p id=lh> <a href=http://home.baidu.com>å³äºç¾åº¦</a> <a href=http://ir.baidu.com>About Baidu</a> </p> <p id=cp>&copy;2017&nbsp;Baidu&nbsp;<a href=http://www.baidu.com/duty/>使ç¨ç¾åº¦åå¿è¯»</a>&nbsp; <a href=http://jianyi.baidu.com/ class=cp-feedback>æè§åé¦</a>&nbsp;京ICPè¯030173å·&nbsp; <img src=//www.baidu.com/img/gs.gif> </p> </div> </div> </div> </body> </html>


Process finished with exit code 0

 

感谢大大,参考网址:

https://blog.youkuaiyun.com/win_turn/article/details/77142100

https://blog.youkuaiyun.com/weixin_39461487/article/details/81132922

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