Urllib3 錯誤“SSL：錯誤的簽名類型”

Question

當我從 Ubuntu 服務器在 python 3.8.5 中運行以下代碼時：

import urllib3
import certifi
url = "https://www.website.com"
http = urllib3.PoolManager(cert_reqs='CERT_REQUIRED', ca_certs=certifi.where())
content = http.request("GET", url, preload_content=False).read()

發生以下錯誤：

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 665, in urlopen
    httplib_response = self._make_request(
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 376, in _make_request
    self._validate_conn(conn)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 996, in _validate_conn
    conn.connect()
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 366, in connect
    self.sock = ssl_wrap_socket(
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 370, in ssl_wrap_socket
    return context.wrap_socket(sock, server_hostname=server_hostname)
  File "/usr/lib/python3.8/ssl.py", line 500, in wrap_socket
    return self.sslsocket_class._create(
  File "/usr/lib/python3.8/ssl.py", line 1040, in _create
    self.do_handshake()
  File "/usr/lib/python3.8/ssl.py", line 1309, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLError: [SSL: WRONG_SIGNATURE_TYPE] wrong signature type (_ssl.c:1123)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "MyFile.py", line 46, in <module>
    content = urllib3.PoolManager().request("GET", url)
  File "/usr/lib/python3/dist-packages/urllib3/request.py", line 75, in request
    return self.request_encode_url(
  File "/usr/lib/python3/dist-packages/urllib3/request.py", line 97, in request_encode_url
    return self.urlopen(method, url, **extra_kw)
  File "/usr/lib/python3/dist-packages/urllib3/poolmanager.py", line 330, in urlopen
    response = conn.urlopen(method, u.request_uri, **kw)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 747, in urlopen
    return self.urlopen(
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 747, in urlopen
    return self.urlopen(
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 747, in urlopen
    return self.urlopen(
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 719, in urlopen
    retries = retries.increment(
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 436, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='www.website.com', port=443): Max retries exceeded with url: /path/to/web/page.html (Caused by SSLError(SSLError(1, '[SSL: WRONG_SIGNATURE_TYPE] wrong signature type (_ssl.c:1123)')))

系統更新為我正在使用的所有庫

在我的 Windows 10 電腦上運行相同的代碼不會出現錯誤

我錯過了什么？

Answer 1

我自己回答這個 GitHub 問題： https://github.com/psf/requests/issues/4775

我使用下面的代碼解決了這個問題：

import urllib3
url = "https://www.website.com"

ctx = ssl.create_default_context()
ctx.set_ciphers('DEFAULT@SECLEVEL=1')
http = urllib3.PoolManager(
   ssl_version=ssl.PROTOCOL_TLS,
   ssl_context=ctx)
content = http.request("GET", url, preload_content=False).read()

Answer 2

您還可以繼續使用帶有以下代碼的請求（靈感來自您的回答和請求文檔）：

import ssl
import requests
import urllib3

class SslOldHttpAdapter(requests.adapters.HTTPAdapter):
    def init_poolmanager(self, connections, maxsize, block=False):
        ctx = ssl.create_default_context()
        ctx.set_ciphers('DEFAULT@SECLEVEL=1')

        self.poolmanager = urllib3.poolmanager.PoolManager(
            ssl_version=ssl.PROTOCOL_TLS,
            ssl_context=ctx)

url = "https://www.website.com"
s = requests.Session()
s.mount(url, SslOldHttpAdapter())
r = s.get(url, headers=headers)

Answer 3

嘗試禁用系統代理

proxies = {"http": None, "https": None} 

Answer 4

上面關於使用 SECLEVEL=1 創建新上下文的答案在 Windows 上的 Python 3.11.1 中對我不起作用（使用OpenSSL 1.1.1q 5 Jul 2022 ）。

但這（受Python 啟發 - requests.exceptions.SSLError - dh key too small ）有效：

import requests
requests.packages.urllib3.util.ssl_.DEFAULT_CIPHERS = 'DEFAULT@SECLEVEL=1'
r = requests.get('https://www.billboard-japan.com')
print(r.status_code)