Windows : Including custom CA file not working 上的 Python 3.6

Question

在 Windows 10 中使用 python 3.6 (Anaconda) 添加自定义 CA 无效。我做了什么:

创建了 2 个环境变量:

SSL_CERT_DIR=C:\_Data\Certs <-- This alone should do the trick
SSL_CERT_FILE=C:\_Data\Certs\burp

我在本地主机上运行 Burp。我已将 CA 证书导出到 c:\_Data\Certs\burp。尝试过 PEM 和 DER，两者都应该有效。

我的程序:

import aiohttp
import ssl
import asyncio

async def main():
    session = aiohttp.ClientSession()
    print(ssl.get_default_verify_paths()) # to verify that my environment variable is working
    f = open('C:\\_Data\\Certs\\burp', 'r') # To check I don't have a permission problem
    f.close()
    aiohttp_proxy = 'http://127.0.0.1:8080'
    async with session.get('https://www.whatismyip.com', proxy=aiohttp_proxy) as response:
        print(await response.text())
    await session.close()

if __name__ == "__main__":
    loop = asyncio.get_event_loop()
    loop.run_until_complete(main())

输出:

DefaultVerifyPaths(cafile='C:\\_Data\\Certs\\burp', capath='C:\\_Data\\Certs', openssl_cafile_env='SSL_CERT_FILE', openssl_cafile='/usr/local/ssl/cert.pem', openssl_capath_env='SSL_CERT_DIR', openssl_capath='/usr/local/ssl/certs')
Traceback (most recent call last):
  File "C:\Users\defaultuser\PycharmProjects\testproject\venv\lib\site-packages\aiohttp\connector.py", line 822, in _wrap_create_connection
    return await self._loop.create_connection(*args, **kwargs)
  File "C:\ProgramData\Anaconda3\Lib\asyncio\base_events.py", line 802, in create_connection
    sock, protocol_factory, ssl, server_hostname)
  File "C:\ProgramData\Anaconda3\Lib\asyncio\base_events.py", line 828, in _create_connection_transport
    yield from waiter
  File "C:\ProgramData\Anaconda3\Lib\asyncio\sslproto.py", line 503, in data_received
    ssldata, appdata = self._sslpipe.feed_ssldata(data)
  File "C:\ProgramData\Anaconda3\Lib\asyncio\sslproto.py", line 201, in feed_ssldata
    self._sslobj.do_handshake()
  File "C:\ProgramData\Anaconda3\Lib\ssl.py", line 683, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:749)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:/Users/defaultuser/PycharmProjects/testproject/_test/test_cert.py", line 20, in <module>
    loop.run_until_complete(main())
  File "C:\ProgramData\Anaconda3\Lib\asyncio\base_events.py", line 466, in run_until_complete
    return future.result()
  File "C:/Users/defaultuser/PycharmProjects/testproject/_test/test_cert.py", line 14, in main
    async with session.get('https://www.whatismyip.com', proxy=aiohttp_proxy) as response:
  File "C:\Users\defaultuser\PycharmProjects\testproject\venv\lib\site-packages\aiohttp\client.py", line 843, in __aenter__
    self._resp = await self._coro
  File "C:\Users\defaultuser\PycharmProjects\testproject\venv\lib\site-packages\aiohttp\client.py", line 366, in _request
    timeout=timeout
  File "C:\Users\defaultuser\PycharmProjects\testproject\venv\lib\site-packages\aiohttp\connector.py", line 445, in connect
    proto = await self._create_connection(req, traces, timeout)
  File "C:\Users\defaultuser\PycharmProjects\testproject\venv\lib\site-packages\aiohttp\connector.py", line 754, in _create_connection
    req, traces, timeout)
  File "C:\Users\defaultuser\PycharmProjects\testproject\venv\lib\site-packages\aiohttp\connector.py", line 960, in _create_proxy_connection
    req=req)
  File "C:\Users\defaultuser\PycharmProjects\testproject\venv\lib\site-packages\aiohttp\connector.py", line 827, in _wrap_create_connection
    raise ClientConnectorSSLError(req.connection_key, exc) from exc
aiohttp.client_exceptions.ClientConnectorSSLError: Cannot connect to host www.whatismyip.com:443 ssl:None [[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:749)]
Unclosed client session
client_session: <aiohttp.client.ClientSession object at 0x000001C3E504F278>

Process finished with exit code 1

我已经通过打开 CA 文件并验证它与将常规浏览器指向我在本地主机上运行的代理并在访问 HTTPS 网站后验证 CA 详细信息时相同来双重检查 CA 文件是否正确。

为什么它不起作用？

Answer 1

重新安装了 Anaconda，更新了 Pycharm，在 Burp 中重新生成了 CA 并重新启动，它现在可以工作了。不确定是什么原因。