如何解决 python requests SSL 和代理错误？

Question

当发送带有身份验证的请求时，我收到 requests.exceptions.SSLError 错误，您可以在下面看到。

proxies = { 'https' : "http://user:pass@ip:port/" } 

url = "https://httpbin.org/ip"

numberResponse = requests.get(url,proxies=proxies).text

print(numberResponse)

requests.exceptions.SSLError​

Traceback (most recent call last):
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 696, in urlopen       
    self._prepare_proxy(conn)
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 964, in _prepare_proxy
    conn.connect()
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connection.py", line 359, in connect
    conn = self._connect_tls_proxy(hostname, conn)
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connection.py", line 496, in _connect_tls_proxy
    return ssl_wrap_socket(
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\util\ssl_.py", line 428, in ssl_wrap_socket
    ssl_sock = _ssl_wrap_socket_impl(
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\util\ssl_.py", line 472, in _ssl_wrap_socket_impl
    return ssl_context.wrap_socket(sock, server_hostname=server_hostname)
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 500, in wrap_socket
    return self.sslsocket_class._create(
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1040, in _create
    self.do_handshake()
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1309, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLEOFError: EOF occurred in violation of protocol (_ssl.c:1125)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\adapters.py", line 439, in send
    resp = conn.urlopen(
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 755, in urlopen
    retries = retries.increment(
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\util\retry.py", line 573, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='httpbin.org', port=443): Max retries exceeded with url: /ip (Caused by SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1125)')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:/Users/K_Yuk/OneDrive/Desktop/Gmail generator/test.py", line 15, in <module>
    numberResponse = requests.get(url,proxies=proxies).text
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\api.py", line 76, in get
    return request('get', url, params=params, **kwargs)
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\api.py", line 61, in request
    return session.request(method=method, url=url, **kwargs)
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\sessions.py", line 542, in request
    resp = self.send(prep, **send_kwargs)
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\sessions.py", line 655, in send
    r = adapter.send(request, **kwargs)
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\adapters.py", line 514, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='httpbin.org', port=443): Max retries exceeded with url: /ip (Caused by SSLError(SSLEOFError(8, 'EOF occurred in violation of protocol (_ssl.c:1125)')))

因此，我厌倦了 verify=False 作为 requests.get() 参数之一，但随后收到 requests.exceptions.ProxyError 错误，您可以在下面看到：

proxies = { 'https' : "http://user:pass@10.10.1.10:3128/"} 

url = "https://httpbin.org/ip"

numberResponse = requests.get(url,proxies=proxies,verify=False).text

print(numberResponse)

requests.exceptions.ProxyError

Traceback (most recent call last):
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 696, in urlopen       
    self._prepare_proxy(conn)
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 964, in _prepare_proxy
    conn.connect()
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connection.py", line 359, in connect
    conn = self._connect_tls_proxy(hostname, conn)
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connection.py", line 496, in _connect_tls_proxy
    return ssl_wrap_socket(
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\util\ssl_.py", line 428, in ssl_wrap_socket
    ssl_sock = _ssl_wrap_socket_impl(
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\util\ssl_.py", line 472, in _ssl_wrap_socket_impl
    return ssl_context.wrap_socket(sock, server_hostname=server_hostname)
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 500, in wrap_socket
    return self.sslsocket_class._create(
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1040, in _create
    self.do_handshake()
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1309, in do_handshake
    self._sslobj.do_handshake()
FileNotFoundError: [Errno 2] No such file or directory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\adapters.py", line 439, in send
    resp = conn.urlopen(
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\connectionpool.py", line 755, in urlopen
    retries = retries.increment(
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\urllib3\util\retry.py", line 573, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='httpbin.org', port=443): Max retries exceeded with url: /ip (Caused by ProxyError('Cannot connect to proxy.', FileNotFoundError(2, 'No such file or directory')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:/Users/K_Yuk/OneDrive/Desktop/Gmail generator/test.py", line 15, in <module>
    numberResponse = requests.get(url,proxies=proxies,verify=False).text
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\api.py", line 76, in get
    return request('get', url, params=params, **kwargs)
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\api.py", line 61, in request
    return session.request(method=method, url=url, **kwargs)
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\sessions.py", line 542, in request
    resp = self.send(prep, **send_kwargs)
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\sessions.py", line 655, in send
    r = adapter.send(request, **kwargs)
  File "C:\Users\K_Yuk\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\adapters.py", line 510, in send
    raise ProxyError(e, request=request)
requests.exceptions.ProxyError: HTTPSConnectionPool(host='httpbin.org', port=443): Max retries exceeded with url: /ip (Caused by ProxyError('Cannot connect to proxy.', FileNotFoundError(2, 'No such file or directory')))

我厌倦了寻找答案，但似乎没有任何效果。我无法使用经过身份验证的代理发送请求。有任何想法吗？

Answer 1

问题很可能不是身份验证。遗憾的是，您没有提供代理配置的详细信息以及用于代理的 URL。您唯一提供的是：

proxies = { 'https' : eampleIpWithAuth } 

根据_connect_tls_proxy堆栈跟踪中的引用，eampleIpWithAuth很可能类似于https://...，即您尝试通过 HTTPS 访问代理本身。请注意，通过HTTPS访问代理与使用 HTTPS的HTTP 代理不同。当通过 HTTPS 代理访问 HTTPS URL 时，实际上会对代理进行双重加密：

client --- [HTTPS wrapped inside HTTPS] --- proxy --- [HTTPS] --- server

而通过“普通”HTTP 代理的 HTTPS URL 则只有单一加密，即它看起来（简化）如下所示：

client --- [HTTPS wrapped inside HTTP]  --- proxy --- [HTTPS] --- server

您想要使用的代理很可能是普通 HTTP 代理，而不是 HTTPS 代理。这实际上是最常见的情况。

发生错误的原因是代理无法使用 TLS，但可以通过 TLS 进行访问。解决方法是使用http://proxy而不是https://proxy作为代理地址。请注意，后者适用于旧版本的 Python，因为不支持 HTTPS 代理，并且https://协议的值被视为与 相同http://。