SSL: WRONG_VERSION_NUMBER

[sweety3377]

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Checklist

• [ ] The bug is reproducible against the latest release and/or master.
• [ ] There are no similar issues or pull requests to fix it yet.

Describe the bug

Code

def main(): auth_login = 'test1' auth_password = 'test2' proxy_headers = { "Authorization": generate_basic_header(auth_login, auth_password), "Client": 'CLIENT_HERE', "Connection": 'keep-alive', "Server-Name": 'httpbin.org', "Host": 'IP_HERE', "Secure": '1', "HTTP2": '1', } proxy_url = 'http://IP:PORT' proxy_mode = 'TUNNEL_ONLY' timeout = Timeout(read=10, connect=5, timeout=5) proxy = Proxy(url=proxy_url, headers=proxy_headers, mode=proxy_mode) with Client(http2=True, verify=False, proxies=proxy, timeout=timeout) as client: request_url = 'https://httpbin.org/get' r = client.get(url=request_url) print(r.text)

Traceback

Traceback (most recent call last): File "C:/Users/Test/Desktop/Engine/tests/tls-tunneling.py", line 53, in main() File "C:/Users/Test/Desktop/Engine/tests/tls-tunneling.py", line 48, in main r = client.get(url=request_url) File "C:\Users\Test\AppData\Roaming\Python\Python38\site-packages\httpx_client.py", line 907, in get return self.request( File "C:\Users\Test\AppData\Roaming\Python\Python38\site-packages\httpx_client.py", line 733, in request return self.send( File "C:\Users\Test\AppData\Roaming\Python\Python38\site-packages\httpx_client.py", line 767, in send response = self._send_handling_auth( File "C:\Users\Test\AppData\Roaming\Python\Python38\site-packages\httpx_client.py", line 805, in _send_handling_auth response = self._send_handling_redirects( File "C:\Users\Test\AppData\Roaming\Python\Python38\site-packages\httpx_client.py", line 837, in _send_handling_redirects response = self._send_single_request(request, timeout) File "C:\Users\Test\AppData\Roaming\Python\Python38\site-packages\httpx_client.py", line 861, in _send_single_request (status_code, headers, stream, ext) = transport.request( File "C:\Program Files\Python38\lib\contextlib.py", line 131, in exit self.gen.throw(type, value, traceback) File "C:\Users\Test\AppData\Roaming\Python\Python38\site-packages\httpx_exceptions.py", line 343, in map_exceptions raise mapped_exc(message, **kwargs) from exc # type: ignore httpx.ProxyError: [SSL: WRONG_VERSION_NUMBER] wrong version number (_ssl.c:1124)

Environment

• OS: Windows 10
• Python version: Python 3.8.1
• HTTPX version: 0.16.1
• HTTP proxy: Yes
• Custom certificates: No

Im use my HTTP proxy for custom TLS, i have a problems with TUNNEL_ONLY

[florimondmanca]

@Sweety133 Hi,

In my mind there are two possibilities, that basically depend on what we do when using TUNNEL_ONLY with an http:// proxy URL.

• If we connect via HTTP (as we should), then it's possible your proxy is in fact an HTTPS one, and we don't support that for now (see related issue).
• If we connect via HTTPS (I don't think that's the case!), then you might want to try dropping TUNNEL_ONLY so HTTPX uses the default.

It's also possible that HTTPS CONNECT is forced because of http2=True. Does it replicate if you drop it so that HTTPX uses standard HTTP/1.1?

[sweety3377]

My Tunnel support HTTP 2.0, TLS 1.1/1.2/1.3 My Tunnel its HTTP PROXY SERVER I have same error without HTTP 2.0

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[lovelydinosaur]

I'd like to take a look before we consider if this needs closing.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[lovelydinosaur]

Let's treat this as stale - we can have another look if it gets bought up by anyone again.